And the results are in……

Leading RF front-end chip manufacturers RFMD, Skyworks and TriQuint each released their quarterly earnings last week and the results for each were very encouraging with revenue for the quarter up 29, 44 and 23%, respectively over the same quarter of the previous year .

For its fiscal 2011 first quarter, ended July 3, 2010, RF Micro Devices Inc. posted better-than-expected quarterly results, helped by growing demand for mobile broadband devices, and said it expects its September-quarter results to be in line with its first quarter. The company earned $28.1 million, or 10 cents a share, compared with $4.8 million, or 2 cents a share, a year ago. Excluding items, RF Micro Devices earned 16 cents a share. Revenue rose 29 percent to $273.8 million. "RF Micro Devices is currently on track to grow revenue and achieve double-digit earnings growth this fiscal year," Chief executive Dean Priddy said in a statement.

While on a different fiscal calendar, Skyworks Solutions Inc.'s also announced that its second-quarter net income nearly doubled, propelled by the booming market for mobile phones and other wireless devices that rely on the company's chips. The company indicated the favorable trends are likely to extend into the third quarter; it provided a forecast above analysts' previous estimates.

In the quarter completed July 2, Skyworks said it earned $34.7 million, or 19 cents per share, up from $18.7 million, or 11 cents per share, at the same time last year. If not for certain accounting items, Skyworks said it would have earned 32 cents share. That was two cents better than the average estimate among analysts surveyed by Thomson Reuters.
Revenue for the period increased 44 percent to $275 million, about $6 million above analyst forecasts. In the current quarter, Skyworks expects to earn 37 cents per share, excluding certain items, on revenue of $300 million. Analysts, on average, had predicted earnings of 34 cents per share on revenue of $287.5 million.

TriQuint Semiconductor also reported their financial results for the second quarter which ended July 3, 2010 with revenue for the second quarter at $207.5 million, up 23% from the second quarter of 2009. The company’s Networks products continued to enjoy a strong rebound from the lows of 2009 growing 19% sequentially and 64% year over year. Net income was $22.5 million, or $0.14 per diluted share. Non-GAAP net income was $33.1 million, or $0.20 per diluted share. Gross margin for the second quarter of 2010 was 41.2%, up from 32.3% in the second quarter of 2009. On a non-GAAP basis, gross margin improved for the fifth consecutive quarter to 42.3%, up from 33.2% in the second quarter of 2009. Gross margin improved sequentially due to strong factory utilization, a higher mix of networks and defense product revenue and favorable product mix.

Operating expenses for the second quarter of 2010 were $58.8 million, or 28.3% of revenue, up from $50.3 million, or 29.8% of revenue in the second quarter of 2009. Non-GAAP operating expenses for the quarter were $54.7 million or 26.4% of revenue, up 4.4% sequentially. Most of the increase was in research and development expenses.

IEEE EMC 2010 in Fort Lauderdale

We are at the IEEE International Symposium on Electromagnetic Compatibility in Ft. Lauderdale, FL and finished our first day of attending the exhibition. Over 2000 attendees are on site with over 150 exhibitors at the Ft. Lauderdale Convention Center. The primary RF and microwave modeling, design, test/measurement and component companies that offer EMC/EMI solutions are here.

The theme of the 2010 Symposium is "Systems Engineering" and the emphasis is preventing or catching EMC issues early in design with proper modeling and early testing. The technical program is designed cover everything from EMC fundamentals to advanced numerical techniques for prediction and control. There are five days of papers, workshops, tutorials and demonstrations.

The exhibition was very busy for the first couple of hours on the first day but seemed to slow for most of the rest of the day until happy hour. Most exhibitors were happy with the quality of the leads so far so we hope this continues through the week. We are shooting some videos of demonstrations and products from the leading companies and will include them in our show wrap up next week.

Update on the iPhone 4 Antenna Issue

By now most everyone has heard about the iPhone 4 antenna problems. Holding it in certain areas can either bridge the gap between two of the antennas embedded into the outside frame causing them to not work properly or covering the lower part of the phone can attenuate the signal resulting in poor reception. There is no software that can fix this physical problem although Apple was pushing this as a solution by reprogramming the sensitivity of the signal strength indicator (number of bars displayed).

There were numerous complaints and now there are lawsuits against Apple that they shipped a defective product and mis-represented its performance (by the way, there are many reports that they are hiring antenna engineers if you want a job there). The final nail seemed to come last Monday when Consumers Reports reported they are not recommending the iPhone 4 due to its issues.

The $30 bumper Apple sells can fix most of the issues but they earlier insisted that customers pay for one. There are even YouTube videos showing how to fix the problem with a band-aid which people are now selling! After being in denial for many weeks and trying to divert attention to the real antenna hardware problem, Apple seems to have come to their senses and is now going to give away free bumpers to its customers although they still are not admitting it is a design flaw. This is estimated to cost around $175 million but this is probably much less than a recall or all the lawsuits, etc. that will be filed in the future.

It is a shame as the new iPhone has improved sensitivity and works very well when held so that the antenna is not covered or shorted out. I originally thought this new antenna design was a great idea but leaving it exposed has shown to be a very bad idea. The iPhone 4 antenna in the phone frame is really a poor design and should have been caught/fixed during modeling or at least during testing. It is standard practice to test a phone in several different hand positions next to a phantom head so it is hard to believe they did not know about this flaw.

A Legal Right to Broadband!

At the beginning of this month, everyone in Finland has been given the legal right to broadband service making it equivalent to a utility available to most everyone in developed countries. The Finnish law means that from 1 July all telecommunications companies will be obliged to provide all residents with broadband lines that can run at a minimum 1 Mbps speed and has vowed to connect everyone to a 100 Mbps connection by 2015.

It is believed up to 96% of the population are already online and that only about 4,000 homes still need connecting to comply with the law so they are much closer to realizing this goal than any other country. Of course, they are in Nokia-land where wireless is their second language.

In the UK, the government has promised a minimum connection of at least 2 Mbps to all homes by 2012 but has stopped short of making this a right in law. The US broadband plan is being developed and funded but the broadband penetration is only about 64% so it is far behind Finland while S. Korea enjoys the fastest broadband speeds worldwide.

RF/Microwave Calculator and Converter Apps

I recently came across this very nice microwave toolbox for Android mobile devices that Faust Nijhuis developed (posted on our LinkedIn Community). He has created a free lite version with a few useful calculators and a 1.99 euro version that has 6 calculators and 2 converters for the full toolbox. Below are a couple of sample screen shots from his web site.


MW calculator lite is the lite and free version of the microwave tool box with the following tools:

• PI and T attenuator calculator
• Reflectometer calculator
• Mismatch error limits calculator

MW calculator is a microwave tool box with the following tools:

• PI and T attenuator calculator
• Reflectometer calculator
• Mismatch error limits calculator
• Microstrip calculator
• Stripline calculator
• Coplanar waveguide calculator
• Power and voltage converter
• Field intensity and power density converter

You will find the applications in the Android Market and more information can be found on his web site at http://www.mwave-design.nl/mw/index.php?title=Android.

At IMS 2010, Agilent launched the Agilent MicroWave calculator to help calculate the errors in microwave measurements. It consists of Directivity Error Calculator, Mismatch Error Limit Calculator, and Ratio-to-dB Calculator. The Directivity Error Calculator shows the accuracy of a reflection measurement of unknown impedance based upon the directivity of the coupler used for the measurement. The Mismatch Error Limit Calculator shows the potential error in a transmission measurement due to imperfect source match and load match. The Ratio-to-dB Calculator simply converts between voltage ratio, power ratio, and dB.

It can be downloaded at http://itunes.apple.com/us/app/microwave-calculator/id369705771?mt=8.

Please let us know if there are RF/microwave related tools that you would like to have in an app. What other mobile phone apps have you seen that would be useful to microwave engineers? This should be a very interesting area to watch as new apps are developed for our industry.

No link between Mobile Phone Base Stations and Early Childhood Cancers

There is no association between risk of early childhood cancers and a mother’s exposure to a mobile phone base station during pregnancy, concludes a new study published on bmj.com last week. This is the first study to look at phone masts in Britain as a whole and is the largest of its kind.


Use of mobile phones has increased markedly in recent years and questions have been raised about possible health effects, including brain and other cancers, especially after prolonged use. Surveys also indicate high levels of public concern about the potential risks of living near mobile phone masts. Previous reports of apparent cancer clusters near mobile phone base stations are difficult to interpret due to small numbers and possible biases that could have affected the results. Also, any radiobiological explanation for such cancer excesses is lacking.



So researchers at Imperial College London set out to investigate the risk of early childhood cancers, such as brain tumours and leukaemia, and proximity to a mobile phone base station during pregnancy. Here is a link to the full story.

ADI Data Converters Buried Under South Pole Ice Cap

This ADI news release came out today and it is a very interesting piece of science so I have to share it here:

Buried two kilometers under solid ice on one of the coldest continents on Earth, Analog Devices’ (ADI) data converters and amplifiers are helping scientists at the South Pole build the world’s largest telescope to search for the smallest subatomic particles known to humankind.

The innovative “underground” telescope project is called IceCube and uses a cubic kilometer of pure, ultra-translucent ice at the South Pole as a telescopic “window” or particle detector to search the universe for its smallest known particles, called neutrinos. Neutrinos are subatomic particles that lack an electric charge produced by the decay of radioactive elements and elementary particles. Neutrinos travel at near the speed of light and are so tiny that they can typically pass through solid matter without colliding with any atoms. However when neutrinos collide with an atom, light energy is emitted that can help detect the presence and direction of these sub-atomic particles.

IceCube will search for neutrinos from the most violent astrophysical sources, including events like exploding stars, gamma ray bursts, and cataclysmic phenomena involving black holes and neutron stars. The IceCube telescope is a powerful tool to search for dark matter, and could reveal new physical processes associated with the enigmatic origin of the highest energy particles in nature.

IceCube uses Antarctica’s ice sheet as the largest instrumented volume of ice/water in the world. Neutrinos passing through the ice sheet collide with atoms creating a blue light at impact that can be detected by IceCube’s digital optical modules (DOMS).

Analog Devices’ data converters and amplifiers are installed in more than 5,000 of these DOMS. The DOMs, which are 13–inch-diameter glass pressure spheres, are deployed under the ice on a cable at depths of between 1.5 and 2.5 km. Over the next 25 years while embedded in ice, the DOMs will detect and transmit experimental data about particle collisions.

“We needed low-power, reliable products capable of providing the longevity needed for this project, especially on the main board in the DOMs. Design teams at Lawrence Berkeley National Laboratory (LBNL) and the University of Wisconsin-Madison used ADI data converters and amplifiers that fit our needs and requirements," said Jerry Przyblski, LBNL Design Engineer. “We used ADI products, such as ADCs (analog-to-digital converters), DACs (digital-to-analog converters) and amplifiers, in the DOMS and the communications system. So far, IceCube’s scientists have gathered data equal to thousands of DOM years of operation.”

iPhone 4 Antenna Design NOT So Revolutionary

I blogged about the iPhone 4 and its revolutionary new antenna design a little of a week ago and how it might be the future for antenna design for handsets. But I was concerned about how touching the antenna in different ways would affect its performance and how they designed for that.

Well, I guess the answer was they did not completely take that into account and now have reception issues with the iPhone 4. Various reports last week highlighted this issue including a user's e-mail directly to Steve Jobs in which he responded to the user saying well, if it does not work well when you hold it a certain way, don't hold it that way. Are you kidding me? The user has to avoid holding it in the lower left corner or buy a $30 case from Apple to solve a problem that no phone should have in the first place.

Here is a video (there are many of them now) demonstrating the phone showing 4 bars of reception strength without holding it and going to no reception if you hold it normally in the palm of your hand. It also shows that holding it without touch the side band where the antenna resides does not affect the reception. I am very surprised this was not discovered in testing and re-designed.

Motorola poised to spin off a debt-free handset group

Details are emerging about Motorola's plan to split in two entities next year, resulting in the spin off its handset unit. This division, according to reports in The Wall Street Journal, will emerge largely debt-free, and will have a cash reserve of $3bn to $4bn. Following a slew of smartphone launches, the company’s handset division is expected to regain profitability by the end of this year, after losing about $5bn over the past three years, resulting in a severe cost cutting program.

The separated device business would be called Motorola Mobility, say the reports, and will also include the set-top-box businesses. The remaining assets, which include the wireless infrastructure, enterprise and public safety activities, will be grouped under the name Motorola Solutions. This division will take on the remaining pension obligations and liabilities - it has been positive in most of its units over the past few years, unlike handsets, and generated a combined $11.1bn in 2009.

GaN and Si Based Technologies Invading GaAs Territory

Our June cover story takes a look at the state of GaAs foundries, their market outlook and how GaN and Si based technologies are impeding on their market share in several applications. SiGe is active in highly integrated mmWave application areas such as automotive radar and high frequency backhaul. Si CMOS designs for handset front ends are starting to find traction in some lower end cellular handsets (Javelin, Skyworks/Axiom, Blue Sand Technolgies, RFAxis, etc). And GaN is taking over some of the very high power niches in commercial and military applications. Read the full cover story here.

Since writing this article, additional news items have been released to support this story as we will continue to follow it. About a week ago, Skyworks announced a cost-effective CMOS front-end module (FEM) for GPRS handsets. Skyworks’ new device offers handset OEMs architectures and high-performance solutions for entry-level phones in a small 5 x 6 mm package. By eliminating the need to optimize matching between the amplifier and the switch, this module helps accelerate customers’ time-to-market relative to other more traditional architectures, and simplifies the supply chain for high-volume, cost-sensitive phones. I believe this device is a continuation of the work done by Axiom Microdevices that they acquired about a year ago. This keeps them in the cellular handset market with both technologies.

And now Engalco has released a new report on how GaN and SiGe are making in roads into traditional GaAs markets. According to their market report – MMICs2 – the compound semiconductor MMIC market to 2015 – GaAs MMICs will remain important, while GaN and SiGe MMICs will progressively invade these markets. Although the overall worldwide total markets are forecasted to reach $6.26 B in 2015, this total continues to be dominated by the commodity markets of cell phones (over $3 B) and both intelligent cruise control and mobile WiMAX ($1.2 B each). After these end-users have been considered, the remaining market segments of defense, ISM, microwave radio, millimeter-wave radio, SATCOM and SATNAV all come in with much lower market shares. Of these, microwave radio accounts for a market worth around $280 M in 2015; millimeter-wave radio exhibits exceptionally high (double-digit) growth to reach $420 M in the same year. The latter market is driven by the exploding capacity requirements of multi-Gbit links.

In the defense segment the report says North America (principally the US) leads, but both Europe and Asia (especially) are increasingly important. The report indicates how both GaN- and SiGe-based MMICs will progressively invade many market segments. The utility of GaN MMICs for high-power/high-efficiency RF amplification is becoming well known; the application will also be extended to other functions in RF modules. SiGe-based MMICs are already being implemented in low-power signal processing roles, mainly in receivers and switches.

Anadigics Stock Price Jumps as Trading Opens

According to the Boston Globe today, shares of Anadigics jumped ahead of regular trading Thursday after a Stifel Nicolaus analyst upgraded the stock, saying the company's earnings are likely to beat expectations in the second half of the year. Stifel Nicolaus analyst Patrick Newton raised the company to "Buy" from "Hold" and gave it a price target of $5.50.

Newton said he expects the company to be taking a bigger share of the market as the year goes on. He said that should help the company's earnings outstrip Wall Street forecasts in the near term. Further out, the company's quarterly revenue of about $80 million to $90 million should pick up to $160 million to $200 million, Newton said. Anadigics shares rose 25 cents, or 6.2 percent, to $4.25 in premarket trading.

Find out what Anadigics it doing right in Microwave Journal interview with Mario Rivas, CEO of Anadigics: http://www.mwjournal.com/News/article.asp?HH_ID=AR_9321

Low Cost 2.4 GHz Weatherproof Antennas Targets M2M Apps

Since Pat has brought up the topic of antennas with his blog about this component's "five minutes of fame" sharing the stage with Steve Jobs as the Apple founder introduced the new 4G iPhone, I thought I would share the following product release that came across my desk today as well. After all, any RF/microwave device targeting Smart grid applications has as much of a cool factor as any in the latest smartphone. Well, maybe not. But helping to save the planet by being green gets my seal of approval.

Pulse, a Technitrol Company (NYSE: TNL), a manufacturer of electronic components and subassembly design and manufacturing, introduces its new low cost, weatherproof antennas for 2.4 GHz devices used in industrial, smart grid metering, security, broadband access, and other machine-to-machine(M2M) applications. These robust, high-efficiency, compact antennas meet Bluetooth, WLAN, WiFi, IEEE 802.11b/g, ZigBee IEEE 802.15.4, and 2.4 GHz ISM band system standards.

Pulse's W5001, W5010, and W5011 antennas function in ruggedized conditions, offering IP65 water ingress protection in accordance with international standard IEC 60529, UV protection, and the ability to withstand 100 mph wind loading. They have a maximum gain of 1.5 dBi in the 2,400 to 2,500 MHz range, an efficiency of 70%, and an operating temperature range of -40°C to 85°C. The antennas have a small footprint and low profile, measuring only 128mm x 18mm.


Pulse's W5001, W5010, and W5011 antennas are available in three SMA connector configurations: fixed right angle, straight SMA, and RP-SMA. They are packaged in quantities of 20 pieces per bag. Additional information regarding these antennas is available on the Pulse website at www.pulseeng.com/file.php?3685.

Antenna Design Enables Multi-band iPhone 4

It is not often that RF technology is one of the leading features mentioned in the release of a new phone even though it is the the enabling technology for wireless devices, but one of the main features mentioned in the iPhone 4 announcement was the external antenna design. Apple cleverly uses the stainless steel band around the phone as a the antenna for GSM, UMTS, WiFi, GPS and Bluetooth (there are spaces separating the multiple antennas around the phone - photo via intomobile.com). This is an amazing example of maximizing the antenna size (for better performance) and minimizing the space it occupies. The iPhone has been notorious for dropping calls so it was imperative that Apple did something about this issue and featured it in the announcement. This could be the future of the way antennas are designed into phones and should improve the performance of the phone especially at lower frequencies where larger antennas are typically provide better performance.

Antenna technology is really being pushed to its limits with all of the different frequencies they have to accommodate in smart phones as they need to connect via multiple cellular bands, WiFi, Bluetooth and receive GPS signals not to mention the coming of mobile TV and video which may require even more frequencies. Tunable antennas seem to be the upcoming technology as a single antenna might be used for all the frequencies by changing its impedance to optimize performance at various frequencies but this can lead to other issues. Most of these tunable antenna are still in development so using the space around the phone body of the phone is an ingenious way to free up board space that would be taken up by multiple antennas. Apparently, the iPad also uses a similar approach where the antenna is the LCD frame around the screen.

One draw back (which must have been considered in the design) is that touching the antenna body will change it characteristics significantly, so I would be curious how that affected the design. There will also be people who will question the radiation being directly in contact with the skin, but I don't think there is much difference in having the antenna touch your skin versus being a few millimeters away inside the phone (the phone is now only 9.3 mm thick).

The new antenna design in the iPhone 4 could revolutionize the way in which antennas are designed in future phones and has enabled Apple to reduce the size of the phone while improving performance to solve the problem of dropped calls and poor reception. Do you think this is the future of antenna design for phones?

On another note, I noticed in the iPhone teardown of the prototype on Gizmodo showed that the Skyworks FEM is again the winner for the RF section last the previous iPhone design. That is a big win for them (I could not make out if there were any additional FEMs on the board).

Cell Phone Market Forecast by Forward Concepts

Forward Concepts has published an in-depth study of the worldwide cellphone market and the associated ecosystem of subscribers, operators and technologies. Some of the key findings from the study are:

• Worldwide unit cellphone shipments fell by 0.5% in 2009, as the entire electronics market was muted by global economic conditions. They are forecasting a much healthier 11% growth in 2010 to 1.4 billion units.
  
• Unit growth varies markedly by region, with China's market forecast to grow by 23% in 2010, while Western Europe's will grow by a more sedate 4%.
  
• India will lead in subscriber growth this year, growing an estimated 30% compared to China's 7%.
  
• Apple exhibited the greatest unit growth of all cellphone vendors in 2009, with an 83% growth. Following Apple was Tianyu with 68%, NEC with 46%, RIM with 44%, Inventec with 23%, LGE with 21%, TCL and Huawei each with 17%, Samsung with 16% and HTC with 10%. Of course, the lesser-known companies began with smaller shipment bases.
  
• In smartphones, ZTE had the highest 2009 unit growth, at 160%, with revenues of $400 million in that category, followed by Apple's 83% growth, but with much higher revenues of $13.8 billion.
  
• Smartphones, such as those by RIM, Apple and HTC get the most press, but they only constitute 13% of the unit cellphone market, while so-called feature phones make up 25%.
  
• Budget cellphones, popular in India, China and Africa presently make up 23% of the market, while mid-range units account for the largest market, at 39%. We forecast that the budget market will flatten as their replacements will lead to better growth of mid-range models.

TriQuint and Avago Supply RF FEMs for New HTC Evo

Earlier this week I saw that iFixit.com had already performed a teardown on the new HTC Evo 4G phone. It shows the RF device winners to be TriQuint and Avago for the RF front end modules which is significant as this is expected to be a hot phone that can compete with the iPhone (although the new iPhone is set to release soon). The TriQunt device is a TQM613029 (outlined in green - image from iFixit.com) CDMA PA-duplexer module that integrates a single-ended transmit filter, duplexer, high efficiency PA die, RF power coupler, matching and built in voltage regulator functionality eliminating the need for external switch circuitry (all in 28 sq mm). The Avago device is a AFEM7758 (outlined in orange) front end module is a fully matched CDMA Front-End Module featuring the integration of power amplifier, duplexer, band- pass filter and coupler. The module uses FBAR-based technology that offers low insertion and good isolation.

These components are the typical RF platform for HTC designs of this type but new here is the 4G capability supplied by the Sequans SQN210 WiMAX chip that supports mobile WiMAX baseband and three frequency bands: 2.3-2.4, 2.5-2.7, 3.3-3.8 GHz. This includes a low-complexity MIMO algorithm on the downlink and 2Tx on the uplink for 2Tx diversity and optional full 2×2 uplink MIMO. This type of integration is impressive and they will offer LTE solutions also.

Is it too early for a 4G phone with such limited infrastructure in place? What do you think??

Surprises on the MTTS 2010 IMS Show Floor

You never know what type of products or companies you will run into at the IMS show. I came across Phillip Jobson who has developed the "pocket radar." It is a palm sized speed radar unit that provide accurate real-time speed measurements of moving objects using 24 GHz radar. It is suitable for things like baseball, racing soccer, tennis, track, etc. It is accurate to +/- 1 mph and measures speeds from 7 to 375 mph. It sells for about $200.

What did you see at the show that was unique or surprising?

MTTS 2010 IMS Attendance Up Over Last Year

The MTTS 2010 IMS saw more than 9,500 participants according to preliminary numbers from the IEEE. Here is a summary of the stats to date:

- The exhibit floor showcased a total of 556 companies & 892 booths representing 40 countries

- Technical registration numbers totaled 2,793 participants

- Exhibit-only registration numbers indicate 2,687 participants

- A total of 858 technical papers were submitted at this year’s conference, representing countries from around the world

The exhibition seems very lively and positive according to most people on the floor. What did you think?

MTTS 2010 IMS Exhibition Opens

The MTTS 2010 IMS exhibition was very lively as it opened yesterday in Anaheim. The traffic was robust and the was mood upbeat as the industry seems to have shaken off the recession. There seemed to be a wide variety of new amplifiers available with very high linearity and efficiency. The improvements in modeling and matching have resulted in some really nice designs. There were also several suppliers with cellular band LNAs that have less than .5 dB noise figures. The larger component manufacturers seem to be filling out their portfolios to meet a wider variety of needs to satisfy as much of the block diagram as they can with their products. Several of the component manufacturers are also offering SMT filters as the frequency bands of many applications are now inferring with each other in smart device applications.

There is certainly high interest in smart grid/metering market along with the wireless consumer applications which are projected to grow rapidly. Also the higher frequency backhaul point to point radio market seems to be a prime target for component offerings. Strategy Analytics today released a report that shipments of short range gigabit radios for display links, HDMI cable replacement, streaming multimedia and last hundred meter Internet access will reach tens of millions of units per year in 2014 (short-range 60 GHz radio, 802.11n 4 x n / 802.11ac, inductive coupling, and proprietary ISM-band approaches such as WHDI).

Mike Cobb - Friend, Mentor

Hopefully everyone, at some point in their career, has the good fortune to be taken under the wing of a kind and knowledgeable mentor. For me, that time occurred several years into my career when I was working at the Raytheon Research Division in Lexington, Ma. Only a few years out of a state school (University of Massachusetts), I found myself surrounded by plenty of heavy hitters from the microwave semiconductor field, more than a few with PhD’s from the likes of MIT, Harvard and Stanford; brilliant men and women whose technical achievements were inspiring and intimidating. And yet among these highly capable engineers and scientists, Mike Cobb was in a league of his own.

Mike was my manager for a brief period of two years, in which time he supported me in my job with solid technical guidance, sage advice, and good humor. I am sure that my experience with Mike was far from unique. Most everyone who worked with Mike remember his unwavering skills as an engineer, common sense approach to problem solving and positive attitude. Born in North Carolina in 1951, Mike’s southern accent was a rarity among the Boston natives at Raytheon and yet he addressed any and all northeast elitist attitudes with a firm engineering grasp and a touch of southern charm.

Mike received the B.S. degree in physics from East Carolina University in 1978 and the M.S. degree in microwave engineering from the University of Massachusetts under the UMASS/Raytheon MSEE Degree program. He began working at Raytheon in 1980, where he performed dc and RF characterization measurements of pulsed X-band GaAs IMPATT diodes and circuits, transitioning into a MMIC design and simulation role.

I’ll remember consulting with Mike many times in his office. I can remember looking past him and up toward the family picture he kept tacked to the cork board over his desk. In it, Mike stands on a dock with his young son and daughter, hooking bait onto their fishing lines. I always found it reassuring to be working for someone with such a strong and loving connection to those in his care.

Last summer Mike learned that he had a lung cancer that had spread to his nervous system with no hope for a cure. Mike was 58. His goal was to live long enough to see his 1st grand kid. He made it, but just barely. His cancer spread aggressively to his meninges, and he went downhill very fast, within days. He passed away peacefully this Monday at his daughter's house in Providence. Mike got to hold his brand new granddaughter, Clara Michelle, before he passed.

Mike – your passing truly saddens all of us who knew you and had the pleasure to work with you.

Services will be in Providence, on Sunday at 3pm, with visitation from 1-3pm, at Monahan, Drabble, and Sherman Funeral Home, 230 Waterman St., Providence, RI. A private burial for family will take place on Monday morning.

Instead of flowers, we are asking for donations in memory of Mike towards thoracic oncology research:

Dana-Farber Cancer Institute10 Brookline Place West, 6th floorBrookline, MA 02445-7226ATTN: Contribution Services
1-(800) 52-JIMMY (54669)

www.Dana-farber.org

Raytheon Microwave System to Prevent Frost in Vineyards

Although this news item is a few weeks old, I thought it was interesting enough to cover here since I have never seen microwave technology used in the type of application. Raytheon is planning to install a prototype microwave frost protection system at the Vineland Research and Innovation Centre, a Canadian horticulture research center located in Ontario, Canada. Raytheon will install a prototype Tempwave system in the center’s vineyard, prepare it for operation and support initial testing over a four-month period. Raytheon’s Tempwave radiant heating system offers a more efficient way to warm crops and avoid the adverse effects of frost on the growing season.

Tempwave’s Microwave Approach
Tempwave is Raytheon’s patent-pending system that uses low-level microwave radiant heat to prevent frost damage to crops. The system directly transmits microwave energy from towers located in an orchard or vineyard to crops without heating the intervening air. Among the system’s many advantages, Tempwave uses no water; emits no smoke, unlike fuel heaters; and operates silently, unlike noisy wind machines used for frost protection.

Mission Innovation is charged with exploring and applying Raytheon technical expertise to address global challenges outside Raytheon’s traditional core business interests in defense, homeland security and other government markets.

Do you see any other potential uses for this technology?

Big M&A Activity as MTTS 2010 IMS Nears

The past week has included several big announcements in the microwave industry for Mergers & Acquisitions which I will extend to also include some significant partnerships that were formed. On the mergers front, Aeroflex officially acquired Willtek from Wireless Telecom Group which was previously announced but is now complete. They paid $2.75 M plus assumed some liabilities.

Next Comtech Telecommunications acquired CPI International for about $475 M. Fred Kornberg, President and CEO of Comtech said the acquisition is a significant step in their strategy of developing a one-stop shopping approach for RF microwave products. The transition is expected to be seamless as they will keep all of CPI's agreements and executive staff in place.

Finally on the merger front, M/A-COM and Mimix agreed to merge last week which was not unexpected as they were both owned by John Ocampo/GaAs labs. I blogged about this previously so I wont' go into any details here.

With 3 big mergers there were also 3 big partnerships/market entries announced recently in the microwave world. The first partnership was IBM teamed up with Peregrine to run their UltraCMOS SOS process on their 8 inch, 180 nm line giving Peregrine a large capacity, low cost chip fab. They plan to utilize future processes using 130 and 90 nm processes for higher performance.

Next Freescale surprised me by announcing they are entering the GaAs MMIC market with 4 new devices. They have always been such a force in the high power LDMOS market that I never envisioned them entering into the GaAs market but I think it is a good move. These products include both PHEMT and HBT products and seem to mostly target the base station market so it expands their portfolio of products in that area.

And finally, EADS and Alcatel announced they are teaming up develop a mobile solution designed specifically to address the public safety market in the United States. The solution, based on LTE and on the public safety Project 25 (P25) standards and will provide mission-critical communications to state and local public safety organizations (fire, police and ambulance departments). The solution is an IP based system that will be interoperable with other communication systems.

This is the busiest pre-MTTS/IMS show news year I have ever seen with a lot of business activity and products announcements. Visit our show news page for up to date information prior to, during and after the show and here is a sneak peak at a May online article on Microwave M&A from a business stand point.

ABI Handset Market Estimates for 1Q-2010

According to ABI Research, handset shipments globally for 1Q-2010 powered ahead to 303 million, up 19% Year-on-Year. This bodes well for 2010 as a whole as shipments could reach 1.3 billion. It is also notable that 3G handset shipments eclipsed 2G handset shipments. The strongest handset shipment growth was seen in the Middle East and Africa (20% YoY) followed by the Americas, particularly the US (11%). Europe, on the other hand, is languishing with single-digit growth.

Nokia’s market-share stood at 34%. New smartphones such as the N8 are helping the manufacturer to shore up its handset portfolio, as its loss of traction in the smartphone sector hit sales hard. In response, revamped efforts with Symbian ^3 and ^4, are intended to help Nokia regain momentum. Samsung had a strong quarter, securing 21%, and has been cultivating deeper relationships with US and European carriers which helped the firm grow its shipments 40.2% YoY.

LG’s market-share, 8.9%, has suffered from a weak smartphone portfolio in the North American market. Shipments grew 20% YoY. Motorola is benefiting from its initial success (2.8%) with the Droid and it keen to back it up with new products such as the Quench but the market is overtaking it. 1Q-2010 proved to a strong quarter for Apple (8.75m, 2.9%) devices shipped, which is up 130% YoY: a remarkable feat, but Apple should diversify its lineup.

I think the HTC is a real up and coming leader in the market. They make many phones for other manufacturers but I like their HD2 which is out of stock every where in my area due to high demand (I tried to get one the other day but there was even a waiting list, so I settled for a Blackberry Bold). With 1 GHz processors and many GBs of flash memory standard on most new phones, smartphones are really just mini-computers now.

M/A-COM Merges with Mimix

M/A-COM Technology Solutions and Mimix announced yesterday that they had agreed to merge and all products in the Mimix portfolio would reside within the M/A-COM family of products. This is not too surprising as they are both owned by the GaAs Labs/John Ocampo group after they purchased M/A-COM from Cobham in March of 2009.

I think this will strengthen both companies as Mimix brings some very good pt. to pt. radio and other MMIC products into the M/A-COM family that complement M/A-COM's existing portfolio. After Tyco Electronics divided M/A-COM up and sold them off several years ago, this gives the remaining entity that will carry on the name and heritage some more size and broadens the portfolio as the regain their market presence.

The original M/A-COM now resides in 5 different companies:

• M/A-COM Technology Solutions has the commercial product lines
• Cobham has the aerospace/defense product lines
• Harris has the wireless systems (LMR) product lines
• Autoliv (Sweden) has the automotive radar product lines
• Micronetics has the RFID product lines

I believe M/A-COM Technology Solutions will be the company that carries on the name and the others will transition away from the brand. It looks like the company will leverage a hybrid fab model as they continue to operate the M/A-COM wafer fabs but also use external foundries for chip production. Mimix is a fabless company and M/A-COM was already transitioning to the hybird model to improve flexibility and reduce capital investments from what I could tell.

For a short history of M/A-COM, read our April special report "M/A-COM is Reborn on Its 60th Birthday". What do you think of the merger and implications on the industry?

HP re-enters Wireless Domain

Yesterday, HP returned to the wireless world with the announcement that they have entered into a definitive agreement under which the company will purchase Palm, a provider of smartphones powered by the Palm webOS mobile operating system, at a price of $5.70 per share of Palm common stock in cash or an enterprise value of approximately $1.2 billion. The transaction has been approved by the HP and Palm boards of directors.

HP’s global scale and financial strength combined with Palm’s unparalleled webOS platform will enhance HP’s ability to participate more aggressively in the fast-growing, highly profitable smartphone and connected mobile device markets. Palm’s unique webOS will allow HP to take advantage of features such as true multitasking and always up-to-date information sharing across applications. While Palm gains the financial muscle to compete more aggressively with smartphone giants, Apple and Blackberry.

“Palm’s innovative operating system provides an ideal platform to expand HP’s mobility strategy and create a unique HP experience spanning multiple mobile connected devices,” said Todd Bradley, executive vice president, Personal Systems Group, HP. “And, Palm possesses significant IP assets and has a highly skilled team. The smartphone market is large, profitable and rapidly growing, and companies that can provide an integrated device and experience command a higher share. Advances in mobility are offering significant opportunities, and HP intends to be a leader in this market.”

“We’re thrilled by HP’s vote of confidence in Palm’s technological leadership, which delivered Palm webOS and iconic products such as the Palm Pre. HP’s longstanding culture of innovation, scale and global operating resources make it the perfect partner to rapidly accelerate the growth of webOS,” said Jon Rubinstein, chairman and chief executive officer, Palm. ”We look forward to working with HP to continue to deliver industry-leading mobile experiences to our customers and business partners.”

Under the terms of the merger agreement, Palm stockholders will receive $5.70 in cash for each share of Palm common stock that they hold at the closing of the merger. The merger consideration takes into account the updated guidance and other financial information being released by Palm this afternoon. The acquisition is subject to customary closing conditions, including the receipt of domestic and foreign regulatory approvals and the approval of Palm’s stockholders. The transaction is expected to close during HP’s third fiscal quarter ending July 31, 2010.

Stranded Microwaver in Europe

Brian Battaglia is the Sales and Marketing Manager for Integra Technologies, a leading manufacturer of high power rf/microwave transistors (i.e. LDMOS). He e-mailed his friends and acquaintances today to say that the volcano in Iceland that has shut down air travel in Europe has stranded him in Rome during a business trip. I asked Brian if he would like to share his story on this blog for our readers. Break out your violins fellow microwavers, here's his tale of "Whoa in Rome".

[from Brian's e-mail]

David,

I don’t know much about blogging but I always have stories to tell.

One week in Europe including Sweden, Rome and Italy. After a few days in Stockholm at the S.E.E. (Scandinavian electronics event) my flight arrived in Rome on Thursday last week. Upon landing I checked my blackberry and saw several messages – from my mom, girlfriend and boss – concerning the volcano eruption which I had not heard about yet. I may have been one of the last flights out of Sweden since this was big news by the time I landed. Somewhere between baggage claim and customs I found the VP of Amplifier Design of Integra who had just arrived from Los Angeles and we made our way to Rome. We had meetings on Friday and were not planning on leaving until Sunday so the volcano seemed like a temporary disruption that would clear up soon surely by the weekend.

On Friday we visited Selex Systemi Integrati a big customer for high power RF transistors globally. The cancellations started expanding across Europe but we weren’t leaving until Sunday and that seemed far away. Saturday was site-seeing (St. Peters/Vatican City/Pantheon/Trevi Fountain) in Rome with plans to leave the next day if the skies opened up. Sunday morning the news seemed hopeful as the no-fly zones were intended to be removed that night. However it soon became apparent that the European agencies were being extremely cautious and the delays kept coming. The stress of the situation mounted quickly – another hotel night accommodation – same hotel, same room, a little over double the price! New tickets purchased through US travel agency that showed flights leaving EARLY Monday morning i.e. 6:30AM. This meant ordering taxi for 3:30AM and 2:30AM wake up calls.

A quick check of the Internet near midnight brought bad news – additional delays over all of Europe. Although we booked on a US domestic carry the flight was routed through Amsterdam. KLM of the Netherlands wished to start flying on Monday but the government would not allow it. This meant cancelled flight and cancelled taxi, however, my Italian must not be so good since the wake-up call still came! The problem is that the airspace has not been cancelled for a few days…no what they are doing is saying everything will open in 12 hours and that has been repeated for the last five days. So every time you check it seems ok but as the 12 hours get closer it moves another 12 hours. It reminds me of the bar back in NY with a sign saying “Special: Free Beer Tomorrow” and when you return the next day of course the same sign in place.

For clothing first you use your casual dress which soon runs out, then back to your business clothes which eventually run out, so today I am wearing a soccer jersey with the name of the local team captain on the back. With decent Internet connections work can still be done as hot ash does not stop emails from piling up. All and all I don’t expect much sympathy from friends, family and colleagues with being stranded in Rome for a week: history at every turn, great fashion, food and wine. Wednesday is Italy’s National Birthday and all museums were free. Thursday is my birthday and Friday we have flights back to US via Chicago via Chicago. Maybe.

Good luck Brian, we hope you make it home in time for your birthday.

Engineer leaves his work behind in a bar

OK. Here’s the story as I initially heard it on American Public Media’s “Marketplace”, driving home from work yesterday.

Last month in Silicon Valley a very important cell phone was left behind at a bar -- what is widely believed to be a prototype of the new iPhone that Apple's officially going to release in a couple of months. The phone wound up in the hands of Jason Chen, the editor of the technology website Gizmodo.com.

In the news report, this phone was described at one point as Apple’s new 4G phone. Which initially grabbed my attention since I immediately thought they were talking LTE (whoa, that’s news), but I have since come to realize, that they were talking 4th generation iphone operating system. Oh well, it was still worth visiting the Gizmodo site and getting the skinny on the whole story and what the web site reporter’s investigation of the phone revealed before they returned it to Apple.

http://gizmodo.com/5520164/this-is-apples-next-iphone

Turning back to RF/microwave related concerns, I reviewed the gizmodo story with an eye out for relevant information. Here are some snippets about the new iPhone that relate to its radio. Among the most visible changes, is one of functionality over looks. The back is entirely flat, made of either glass (more likely) or ceramic or shiny plastic. Why the plastic back?



"The plastic back is the most obvious of the design choices. The iPad, with its all aluminum back, has seen its Wi-Fi reception radius reduced. The iPhone 3G version comes with a large patch on the top, probably big enough to provide with good reception. But the new tiny iPhone doesn't have the luxury of space: It needs to provide as much signal as possible using a very small surface. Industrial designers and fashionistas might be dying to get rid of the plastic back, and go iPad-style all the way, but the wireless reception is the most important thing in a cellphone. A necessary aesthetical-functional trade-off."



The “editors” then took apart the phone. Once open, they noticed that the battery takes up around 50% of the phone, give or take. Diving deeper became much trickier. There are a total of around 40-50 screws inside the phone, positioned at various angles that were almost frustratingly impossible to get to. The main logic board is one very weird piece of this puzzle. Unlike the iPhone 3GS teardown, which revealed a large logic board along with another part down by the dock connector, this design only has something maybe 1/3 of the size, along with one or two extraneous parts. Basically, the guts have shrunk drastically. The board was encased in metal all around so nothing could get through. EMI or IP protection?








Unfortunately, the editors failed to report on the front-end technology, changes to the antennas, power amps, switch modules and other RF components, etc. Oh, well, that’s information for a different audience than they were writing for, I suppose. We need a microwave editor for that. I'll have to ask my publisher for the new iPhone when it's available legally. The chances of me getting one are about as great as me being able to rip it apart.

Perhaps the bigger lesson is not to leave your work behind at the bar.

Next Generation Networks conference and Green Basestations Summit

The Next Generation Networks conference and Green Basestations Summit is scheduled for next week (April 19th - 23rd) in Bath, UK. The conference will feature twenty keynote operator presentations as well as speakers from leading global Investors, Analysts, OEMS, Vendors and Industry Associations.

Building on last year's highly successful event led by 12 Leading Operator Keynotes, including Cable & Wireless, China Mobile, Orange, T-Mobile, Telecom Italia, Telefonica, TeliaSonera and Vodafone, the 2010 conference is targeting its content to attract senior managers from across the mobile industry with topics that include:

• Building a Sustainable Wireless Broadband Future - Exploiting the Next Wave of Growth
• Enabling Technologies - Realizing True Mobile Broadband
• Convergent Networks - Delivering an Optimal Service
• Breaking Through - The Challenge of In-Building Coverage
• Opex & Capex - Preparing the Network for an Upturn in Wireless Broadband Demand
• Beyond The Spectrum - Bringing Clarity of the Mobile Broadband Picture
• U-Tube, Facebook & Twitter - What Innovations Will Make A Difference

This event will be a focal point for information and debates on the key topics of LTE, Network Sharing, ROI, Femtocells, OPEX/CAPEXsavings, Business Models, Technology Innovation and Sustainability.

New this year, will be workshops on Picocells/Femtocells - Enabling Operators to deal efficiently with 3G and 4G Capacity Demands (NGN Conference) and Cost Savings for Hybrid Power Deployment with Generator Powered Basestations (Green Basestations Summit) - all included in the conference price.

AT&T Leans on Femto-cells to Support iPhone Coverage

I’ll admit that I get jazzed when I read a news item in the mainstream media that has some Microwave technology playing a leading or supporting role. So I was pleased when I read this story appearing in the New York Times on Wednesday that discussed how AT&T was addressing spotty iPhone service that occurs in locations where there are a shortage of cellphone towers. The solution, “a miniature cell tower in your living room” was described as a mini-tower, the size of a couple of decks of cards that looked like the Wi-Fi hot spots at cafes and could redirect calls from congested cell towers to home Web connections. Hhhmmmm, sounds like a femtocell to me.

The Times reported the story of Christina Zachariades, 28, a Manhattan resident who already pays $130 a month for iPhone service but cannot receive or make calls in her fifth-floor apartment on the Upper East Side. Despite the additional cost to consumers, the technology is poised for big sales, thanks to price drops but also because of the entrance into the market by AT&T. Other companies — Verizon, for example — have already marketed their mini-towers for niche use to customers in places with limited cellphone signals, like basements or homes with particularly thick walls.

The article went on to describe how industry analysts stated that "mini-towers, known as femtocells, are poised for spectacular growth. Shipments should grow from 571,000 this year, to 1.9 million next year, to 40 million by 2013, according to iSuppli, a market research firm. Falling prices are helping propel sales. Two years ago, for example, consumers would have paid $500 or more. "

Cisco, Samsung and Netgear are among the companies that make the towers; Qualcomm and Texas Instruments, which make chips for phones, have also developed products. Francis Sideco, an analyst at iSuppli, said there were still bugs to be worked out before femtocells become a mass-market product like wireless routers or storage devices, which were once hard to market.

Over the long term, basic economics favors mini-towers in homes over big towers, said Pasquale Romano, chief executive of 2Wire Inc., a company in San Jose, Calif., that is developing one of the devices. Ramano claimed that it didn't make sense for carriers to spend money building large towers in residential areas because most people are not home during the day; as it is, AT&T already plans to spend $8 billion this year on improving its wireless coverage, including on big towers, according to public filings.

The price for the AT&T device could fall to $49 if consumers buy a broadband or in-home calling plan, and could be free to customers who buy both. Still, marketing mini-towers has its risks for AT&T. Even though it expects the towers to improve signal quality and take pressure off its network, they could displace landline telephones because wireless consumers will not need a second phone number.

At Microwave Journal, we’ve been following the Pico- and Femto-cell markets for a number of years now with news, articles and application notes from a variety of sources. Earlier this month we reported on the completion of the Femto Forum’s first Femtocell plugfest (Femto Forum Completes First Femtocell Plugfest ). GaAs power amplifier supplier, Anadigics has been targeting this market since 2008 (ANADIGICS Enters Femtocell Market ) and provided us with a white paper that same year

Last May we reported that femtocells, which were virtually non-existent in 2006, and deployed by one operator in 2007, would make up 61 percent of small cellular base station revenue by 2013, according to reports In-Stat.

Highlight's from last year’s In-Stat report included:

• Femtocells, picocells and microcells are expected to surpass 15 million units by 2013.
• Worldwide annual femtocell semiconductor revenue will approach $400 M by 2013.
• Sprint was the first to market with a femtocell-based service in 2007, while others entered the market in 2008.
• In mid-2009, Airwalk introduced a new enterprise femtocell. These products have the capacity of a traditional picocell and the ease-of-use of a femtocell.
  
  
  
  

Satellite LTE Network Planned by PE Firm

Harbinger Capital Partners plans to deploy a LTE network over spectrum owned by a few satellite companies which would create an open wholesale wireless network available to anyone who wants to offer mobile broadband. The new network will rely initially on 23 MHz spectrum owned by SkyTerra (which is owned by Harbinger) and could later include spectrum from Terrestar Networks, another satellite firm in which Harbinger holds a stake.


The network could help ensure competition among the major wireless carriers because of the conditions the FCC has placed on the spectrum that the private equity firm plans to use as part an agreement to let Harbinger take control of SkyTerra. SkyTerra would be a wholesaler, and that traffic from the wireless carriers in the U.S. cannot comprise more than 25 percent of the traffic over the SkyTerra/Harbinger network. This means AT&T and Verizon could not buy up huge chunks of the network or spectrum to keep others off of it.

The planned network would launch before the end of 2011 and cover 9 million people (trials initially planned for Denver and Phoenix). Then cover 100 million people by the end of 2012, 145 million by the end of 2013 and at least 260 million people in the United States by the end of 2015. Harbinger said in its statements to the FCC that all major markets will be installed by the end of the second quarter of 2013.

However, the 36,000 base stations that Harbinger plans to use, along with the tower sites, backhaul, etc. with a terrestrial network will require billions of dollars. Verizon and Clearwire have already started building out their networks and are investing billions. It is hard to see how Harbinher could afford to do this. According to SkyTerra, the network will have no less than 23 MHz of spectrum, consisting of 8 MHz of 1.4 GHz terrestrial spectrum, access to 5 MHz of 1.6 GHz terrestrial spectrum and 10 MHz of MSS/ATC L-band spectrum. Through a cooperation agreement with Inmarsat and associated waivers of the Commission’s ATC rules, by 2013 Harbinger will have access to an additional 30 MHz of ATC spectrum.

It will be interesting to see how this turns out.

Wireless Wee Wee

I recently came across Simavita that makes wireless monitoring devices for assisted living residents to monitor when they go to the bathroom and logs the events for analysis to improve their comfort level and coordinate scheduling of changes, etc.

The main component is a remotely monitored disposable continence aid – the SIMpad®. It is fitted with a sensor strip (SIM™strip) that is completely safe for the wearer. A reusable SIM™box fitted to the front of the SIMpad transmits sensor readings wirelessly to a central monitoring station (SIM™server). A key component of the system is the SIMsystem™ Manager, software running on the SIMserver that incorporates an algorithm to analyse the sensor readings and provide an assessment of the continence event in real time; alerting the carer if required.

The SIMsystem Manager automates the process of analysing sensor readings from a sensor strip inside a continence device, capturing observations from carers and presenting the data back to care staff in a manner which simplifies decision making. The SIMsystem consists of:

The SIMbox, when fitted into the individual resident's stretchpants (SIMpants), transmits sensor readings from the SIMstrip in the SIMpad over a wireless network to the SIMserver. The SIMsystem Manager software running on the SIMserver then detects key information about continence events and determines when to alert care staff about an event requiring attention. Alerts are sent via text message to the carer's mobile phone, or via the facility's paging system if preferred. As carers are often unable to immediately respond to events, the software will display a summary log of alerts and manual observations can also be entered. The final bladder chart includes all observations in one easy-to-read report.On completion of the 3-day assessment, the SIMsystem Manager produces shift, daily and 3-day reports that may be used by carers for the development of continence care plans.

The SIMbox and SIMnetwork have been built for ZigBee® for low-power and low-range wireless applications. The SIMbox can operate continuously for at least 100 hours before the batteries need charging. The SIMnetwork platform consists of SIMboxes, SIMchargers, SIM repeaters which can extend the network, and a SIMgateway for connection to the central SIMserver. The SIMboxes are specially designed to be of minimal size and maximum battery life, to be flexible and compatible with a range of clinical applications.The SIMnetwork meets the essential requirements of the Australian1 & European2 standards and therefore is deemed EMC compliant so it is approved for use in healthcare facilities.

What will they think of next for M2M applications!

Updates and a Brief History of Aeroflex's PXI 3030

In October 2003 Aeroflex launched the 3000 Series, a PXI-based modulartest suite for mobile phone and general-purpose wireless test. Today, the Aeroflex 3000 Series now encompasses more than a dozen PXI RF modules andsupporting applications for signal generation and signal analysis, meeting the specific requirements for a wide range of mobile communication standards.
Applications include automated measurement of parametric performance of terminal transmitter and receiver characteristics, terminal TX and RX alignment and performance characterization for manufacturing, and research and development.

PXI OverviewPXI derives its name from the PCI eXtensions for Instrumentation specificationthat defines a rugged personal computer-based bus as the basis for a commonplatform for measurement and automation systems. PXI uses the high-speedPeripheral Component Interconnect (PCI) bus combined with the rugged, modular Eurocard mechanical packaging of CompactPCI and adds mechanical, electrical and software features that define complete systems for test and measurement, data acquisition and manufacturing applications. These extensions make it easy for end users and integrators to quickly build open, multi-vendor measurement and automation systems. The PXI was designed to bridge the gap between desktop PC systems and high-end VXI and GPIB bus systems.

In order to exploit the benefits of PXI, RF test system developers required first to have their needs met for performance and functionality, particularly in the areas of RF signal stimulus and RF signal analysis. The RF synthesizer has been used by Aeroflex since its inception as the underlying module for using PXI for RF instrumentation based upon the patented Fractional-N synthesizer. The 3020 Series RF signal generator modules are used in conjunction with the 3010 RF synthesizer to provide modulation and waveform generation, RF leveling and frequency tuning from 100 kHz to 6 GHz.

The 3030 Series RF digitizers provide frequency down conversion and highdynamic range analog to digital conversion for measurement and real timeapplications. The 3030 Series RF digitizers are also used with the 3010 RFsynthesizer, which provides the tune-able local oscillator (LO).

(source: http://www.aeroflex.com/ats/products/prodfiles/appnotes/PXIBackgrounder.pdf)

On March 31st, 2010, Aeroflex introduced its PXI 3030 TD-SCDMA Measurement Suite to provide fast and cost-effective production testing of mobile handsets and RFICs based on ETSI 3GPP TS 34-122. It supports all major cellular standards, including 3GPP LTE, CDMA2000, 1xEVDO, GSM, W-CDMA, and mobile WiMAX. The wireless connectivity standards WLAN and Bluetooth are expected to be integrated into most TD-SCDMA phones and are also supported in this single box solution. The PXI Measurement Suite makes parametric measurements of TD-SCDMA transmitters and supports high-speed alignment and performance verification of devices operated in a non-signalling mode. Applications include high-speed/high-throughput mobile handset testing as well as RFIC characterization.

The platform provides high yield and throughput, achieving dramatic improvements in test time using speed-optimizing techniques such as multi-thread processing, pipelined capture, and fast-sequence tuning (FST).

Capacity Constraints and LTE - Hot Topics at CTIA 2010

The keynote session kicked off the CTIA 2010 show with Ralph de la Vega, president and CEO AT&T Mobility and Consumer Markets, presenting the case that the US is the world leader in mobile broadband no matter how you measure it. The US has the most 3G subscribers (117 million), most WiFi hotspots (70,000), spends the most of wireless capital expenditures on mobile broadband (80%), the highest investment in LTE (30% in 2009), the most smart phones (53 million according to Strategy Analytics) and estimated 412 million M2M devices deployed by 2014. But he emphasized that the US must continue to innovate or this lead could evaporate quickly.

He stressed that we are at a threshold now, so we must address the looming capacity issues as this expansion continues. The US is freeing up quite a bit more of spectrum to use for mobile broadband but we must also find more efficient ways to use the spectrum. LTE could be as much as 2.5 times more efficient than HSPA and the industry needs to work together to develop efficient apps. We also need to use other methods to supplement capacity such as WiFi and femtocells.

Steve Largent, president and CEO of CTIA, went on to say this is the 25th year of CTIA and showed the new "Freedom is Wireless" commercial being released. He stated that connected devices grew from 270 to 285 million from last year to this year and MMS grew 130% in 2009.

A video from the FCC chairman addressed the US Broadband plan spurring business and addressed the plan to free up spectrum. Then other CEOs went on to address their markets and businesses.

The exhibition floor was very busy most of the day and many new phone announcements were made along with various apps. Yahoo was demonstrating their app where you could just draw a line or circle on Google maps and it would automatically list the restaurants within the immediate area.

I got a hands-on look at the new HTC HD2 - what a nice phone! It has a very large, vibrant screen (4.3 inches), 1 GHz processor running Windows mobile, 5 mega pixel camera and HTC Sense which makes the experience very intuitive. I am going to have to check this out as soon as I get home and possible buy one.

The RF/Microwave Zone was busy with exhibitors from Freescale, JFW, Spinner, Times, Atrium, RF Electro Rent, Innertron, Trilithic, Park Electrochemical, RF Window, ACC, Rojone and Microwave Journal.

A full show wrap up will be coming in a few days covering the RF and Microwave companies and products.

Satellite 2010 - Brighter Days Ahead

The opening session on Tues with the CEOs from the big four (Romain Bausch, SES; Daniel Goldberg, Telsat; David McGlade, Intelsat; and Michel de Rosen, Eutelsat) showed that the companies are more optimistic about the market than they were last year. The needs to expand bandwidth and provide communication services to less populated areas are opportunities for satellite providers. The desire for countries to provide Internet access to more of those without access today is another area where satellite can be a solution. While satellite does not have data rates as high as fiber, it can provide coverage much easier to remote areas. But some want to push higher data rates (like 100 Mb/s) over more access. It was said, "Should we get 100% access at 10 Mb/s for everyone or get 100 Mb/s access but not 100% coverage." The cost to do both is probably too high so it would make sense to give everyone access first but people love to talk about very high speed access.

There is concern about interference issues so coordination is a key issue to tackle especially with new bands and applications involving LTE, WiMAX, etc. Also concerning is that many view satellite solutions as too expensive and low in data rates when it should be an economic trade off depending on the service needs, coverage area, etc. It would not be fair to subsidize other technologies which could threaten higher data rate Ka-band implementations for satellite. But a combination of bands is the best solution depending on the needs of the service and area to be covered. Higher order modulation schemes, higher frequencies, etc. will eventually enable even higher data rates that satellite could deliver 100 Mb/s service for some needs.

The hot topics are comms on the move, security, lower power consumption (green tech), M2M/SCADA, video standards, hosted payloads, among others. There are forums on various subjects including the MSUA Conference co-located. They moved the event to the Gaylord outside of DC and found it was not large enough to accommodate all the exhibitors this year so it probably will move back to the convention center next year. That is good news for the industry.

I will have a full wrap up article covering all the RF/microwave companies we visited in the exhibition including the new products they were featuring at the show.

Hybrid Car EM Radiation Concerns

There have been various reports over the last few years about possible electromagnetic (EM) radiation generated by the high current in hybrid cars being harmful. The EM radiation is due to the high AC current running from the batteries to the electric motors. Some older hybrid models were reported to have relatively high fields measured in them some exceeding what was recommended by government. This seems to have hit the news again as Israel has recently stated that they will issue a safety radiation scale for hybrids as they found some current models exceed what they recommend as the maximum exposure level per day.

I find it hard to believe that the current levels in hybrids would be high enough to cause harm to someone in the car from EM radiation but it does not seem like anyone knows for sure. It has been suspected that EM radiation from power lines can be harmful if you live close to them but I don't think that has been proven either. It is also like cell phone radiation exposure - there is no conclusive data that it is harmful. If the current level in hybrids is dangerous, then the higher currents produced in pure plug-in electric cars would be even worse as there motors are larger than those in hydrid models. It also should be possible to shield the wires if there are concerns about their safety.

Has anyone seen data on actual measured EM field values and how it compares to the allowed standards? I have also seen reports that such EM fields can be beneficial to our health so who knows how they truly affect our bodies overall. Please chime in with your opinions as this might be a topic we cover in a future article.

ADI Poised for Growth – RF and Converters Emphasized

I attended the Analog Devices (ADI) Analyst’s Day on Thurs and discovered how much they are going to focus on RF technologies and leverage their expertise in the converter market, where they are dominant (44% market share/ $1.1 B in sales), to expand their RF business in the transmit/receive chains. They currently have RF sales of about $200 M from a total available market of about $8 B if you exclude handsets. They are targeting high performance, high margin markets so they are not aiming for the handset or WLAN markets which are more commodity oriented. They have products covering the entire T/R chain but are not widely known outside the converter, modulators and PLL/VCO/Synthesizer markets from what I have seen but they expect to change that.

I was surprised to learn that the Barry Gilbert who invented the Gilbert Cell mixer works at ADI and still leads their development efforts in that area. The also emphasized their expertise in fast hoping PLL synthesizers and RMS detectors along with variable gain amplifiers. They recently released (ADRF670x and ADRF660x) a transmit modulator and receiver down converter that integrate many functions onto a single chip for high performance infrastructure applications. They expect strong RF growth in the medical, wireless infrastructure and building automation (smart grids, security, etc.) markets and they expect to grow at over 15% in the RF market going forward. It is good to see companies expecting large growth this year in the RF market.

First Junctionless Transistor Fabricated

A team of scientists at the Tyndall National Institute have designed and fabricated the world's first junctionless transistor that could revolutionize IC chip manufacturing. Existing ICs are based on junctions which turn the current off and on to control the device but in the junctionless Tyndall device, the current flows in a very thin silicon wire and the flow of current is controlled by a ring structure that electrically squeezes the silicon wire to control the current. These devices are easier to fabricate and can be made on a smaller scale than current junction devices which seem to be nearing their limit for miniaturization. The junctionless devices also act more like a perfect transistor so they have less leakage current and could reduce power consumption.

I wonder how a RF junctionless transistor would behave. Any insights or thoughts?

Potential GPS Security and Reliability Risks

Last week the International Business Times reported that critical infrastructure dependent on GPS satellites are increasingly threatened by attack from widely available equipment such as jammers and spoofing devices. Air traffic communications, the electricity grid, telecom networks and other emergency services are under threat from such devices that are widely available at low costs in underground market places.

They reported that experts met in the UK at the National Physical Laboratory in Teddington on Feb 23 and professor David Last, a past president of the Royal Institute of Navigation and now a GPS consultant stated, “A portable jammer in a tall building could cover most of London and aircraft approaching its airports. GPS gives us transportation, distribution industry, 'just-in-time' manufacturing, emergency services operations - even mining, road building and farming, all these and a zillion more. But what few people outside this community recognize is the high-precision timing that GPS provides to keep our telephone networks, the internet, banking transactions and even our power grid online.”

They said that jamming devices that can disrupt GPS signals are sold on the Internet for around $100. Last was also quoted as saying “GPS now is like computers before viruses. But there are no big security companies working to protect GPS.” He explained that the gadget could be used to "spoof" a location -- useful to evade GPS based tolls or worse to set others off course. "You can now buy a low-cost simulator and link it to Google Earth, put on a route and it will simulate that route to the timing that you specify," said professor Last.

I am sure the military portion is a better protected but how about personal navigation and public safety applications. Even if jamming is defeated, spoofing would be difficult to stop since it would be localized to a specific area.

There were also previous reports that the US GPS system was aging and nearly its design life for many of the satellites. It was stated that satellites would reach their end of life much faster than they could be replaced weakening the network to the point where accuracy and coverage could be decreased. The reliability and security issues of the US system are concerning. How dangerous do you think it really is? Any insights from technical people involved in such systems??

Short Range Wireless Taking Off

I have posted a couple of reports on near-field communications growing and got a lot of attention at MWC 2010 but short range wireless as a group of technologies is also taking off. ABI Research reports that global shipments of short range wireless ICs (Bluetooth, NFC, UWB, 802.15.4, WiFi) are expected to surpass two billion units this year, increasing approximately 20% compared to 2009. Shipments are forecast to total five billion in 2014.

Bluetooth took more than 55%, following by WiFi at around 35%; the rest of the shipments were made up of NFC, UWB and 802.15.4 ICs. Mobile handsets maintain the highest adoption rate for Bluetooth ICs. In addition to data transmission between mobile handset and Bluetooth headset, the application of Bluetooth technology is gradually moving into computers and consumer electronics products such as laptops, UMDs, and the wireless remote pole of game consoles.

Low power consumption and short range transmission are two key technical features of Bluetooth technology. Furthermore, in December 2009 the Bluetooth Special Interest Group (SIG) announced the adoption of Bluetooth low energy (BLE) which opens an absolutely new market for products and devices needing low cost and low power wireless connectivity. Likely vertical markets include healthcare, security, and home entertainment. Chip manufacturing technology migration is driving down chip cost too, and as Bluetooth chip ASPs continue to decline, new business opportunities will be created.

Combination chips, integrating two or more short range wireless technologies to deliver further cost reduction and chip size decreases, are paving the way for another trend in short range wireless IC market development. The three major integration solutions — Bluetooth+FM radio, Bluetooth+WiFi+FM, and Bluetooth+FM+GPS — are forecast to account for more than 30% of all Bluetooth combination chip shipments in 2010. The combination chip using BLE is expected to make up 50% of total Bluetooth combo IC shipments in 2014.

TriQuint has plans to release a combination WiFi + Bluetooth front end module soon and others are probably working on similar architectures for future products. These are becoming ubiquitous functions in all of our electronics from cameras and mp3 players to printers and phones. The best option on my car is the handsfree Bluetooth option for my radio.