David Vye, MWJ Editor
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David Vye is responsible for Microwave Journal's editorial content, article review and special industry reporting. Prior to joining the Journal, Mr. Vye was a product-marketing manager with Ansoft Corporation, responsible for high frequency circuit/system design tools and technical marketing communications. He previously worked for Raytheon Research Division and Advanced Device Center as a Sr. Design Engineer, responsible for PHEMT, HBT and MESFET characterization and modeling as well as MMIC design and test. David also worked at M/A-COM's Advanced Semiconductor Operations developing automated test systems and active device modeling methods for GaAs FETs. He is a 1984 graduate of the University of Massachusetts at Dartmouth, with a concentration in microwave engineering.

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...
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AT&T leans on Femto-cells to Support iPhone Service

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...
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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...
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Driving around in my Infotainment-mobile

Home entertainment electronics are finding their way into new vehicles, merging with car-specific functions such as navigation, hands-free phone control, and telematics. "Infotainment" as the technology has been termed, describes the complete ecosystem of electronic devices for automobile-based information and entertainment. Audio and video devices, as well as navigation systems and telematics, are merging into single, fully-integrated systems, creating new challenges for system designers. Much of the responsibility for the quality of the infotainment system rests with the designers of in-car radio. Thanks to technological breakthroughs in integrated circuits, filters, amplifiers, and antenna designs, sound quality has improved with each...
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Keep that phone out of your trousers

De-Kun Li's new epidemiological study shows that extended exposure to weak magnetic fields as low as 1.6 mG (0.16 µT) can have negative effects on sperm quality, so says the results of a report published by Reproductive Toxicology. "This is the first demonstration of a link between EMF exposure and the decline of semen quality," Li told Microwave News. The study, which was carried out in Shanghai, has important implications for overall fertility because approximately 40% of the Shanghai population is exposed to more than 1.6 mG for 2.4 hours on a daily basis. The study, a collaboration with Chinese...
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Cyber Wars: Wireless Networks, Drones and Hacking

When the Wall Street Journal broke the story that Iraqi insurgents have been intercepting video communication signals from United States Predator drones over the last year, they characterized the actions as “the emergence of a shadow cyber war within the U.S.-led conflicts overseas.” The truth is that cyber war has been the fifth warfare domain for some time, a new theater of war teeming with invisible enemies. The frequency and sophistication of cyber attacks is increasing daily, driven home by the insurgents’ wherewithal to both know that a $26 piece of pirating software could intercept these video signals (the Pentagon...
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How Designers Search

The results of a survey by a trade journal serving the Integrated Circuit market on “How Designers Search – Survey Results.” offered some interesting food for thought. The information was gleaned from the 185 managers, engineers and programmers working in commercial or military sectors out of 443 respondents to a survey sent to eg3.com’s 43,000-plus subscriber list. The survey attempted to determine how engineers and programmers search for information on technology, what types of content they were seeking, and how they went about finding it. As might be expected, search engines ranked high and were used by engineers, virtually all...
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And the award goes to...

Some impressive milestones in the world of Microwave semiconductors were noted this week. Here's a glimpse of some of the noteable announcements RFMD announced the receipt of its first purchase order from a tier-one wireless base station original equipment manufacturer (OEM) for a product featuring RFMD's state-of-the-art gallium nitride (GaN) process technology. The purchase order is for RFMD's RFG1M09180 180 W GaN broadband power transistor (BPT) and is in support of the global expansion of 4G wireless networks. NXP Semiconductor touted their ranking at the top of the latest Vendor Matrix released by ABI Research. The Strategy Analytics RF &...
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Top 10 Most-Anticipated Cell Phones

The list below came to me in an e-mail. The popularity of smart phones will hopefully continue and many of these soon-to-be released products will enjoy robust sales, translating into good earnings for component vendors. Media-rich phones also require more bandwidth capacity on the inforstructure-side, so strong smart phone sales will benefit many in the microwave field. 1. Motorola Droid (Verizon Wireless) - The most anticipated cell phone launch of the season is just days away, but the hype for this the Motorola Droid smartphone has been building for quite some time. Verizon Wireless has invested heavily in a national...
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