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DECEMBER 2004 | |
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December 2004 - In This Issue [Cover Story] Amplifiers Drive Broad Applications General-purpose amplifiers (GPAs) can be thought of as the "RF glue" in wireless systems. Although they're simple in design, these amplifiers must boost RF signals to acceptable levels. They also must overcome the losses that are accrued by a... — Jack Browne [Design Application] Access Isn't Always The Killer Application A great number of usage models fall under the "wireless" umbrella. For some users, access to a network infrastructure is the killer application. For others, the "killer app" is the capability to communicate independently between devices within a... — Charles Knutson Integration Is A Must For Future Handsets There appears to be no end to the functionality that can be added to the next-generation mobile phone. This trend is partially driven by network operators. After all, they can realize a higher annual revenue per user by offering handsets with... — Jerry Loraine [New Products] RF Subsystems Satisfy 3G And 4G Base Stations Although wireless-infrastructure spending suffered a slowdown over the last few years, development continued to thrive. To inspire spending and upgrades that will support more data-centric networks, recent products blend performance and features at... — Nancy Friedrich Drop-In Solution Takes Place Of FPGAs To reduce costs and remain competitive in today's market, many engineering companies are relying on field-programmable-gate-array (FPGA) conversions. Now, they have another choice in the XPressArray-II (XPA-II) product from AMI Semiconductor. The... — Nancy Friedrich WiMAX Reference Design Boasts Full Upgradability Currently, WiMAX occupies center stage in the wireless industry. A large number of companies are investing in the development of WiMAX-ready technologies. Yet they've largely ignored the needs of infrastructure manufacturers. Realizing this gap,... — Nancy Friedrich [Column] Feature Phones Will Continue To Dominate Smart Phones Smart phones are certainly equipped with personal-computer-type bells and whistles. But do consumers really want such complicated devices? The answer to that question seems to be "no." What consumers really want is phones that do one or a few chosen... — Simon Morris [News] Wireless Gadgets Make The Holidays Bright Holiday celebrations are filled with traditions. Here at Wireless Systems Design, we have some traditions of our own. Over the last couple of years, we've added an emphasis on "Wireless Gadgets" to the final issue of the year. This year,... — Nancy Friedrich Bluetooth GPS Navigation System Directs Users Many high-end vehicles come with in-car navigation systems. For those vehicles that aren't equipped with navigation, some companies have come out with impressive aftermarket systems. Instead of buying these systems, however, many consumers would... — Nancy Friedrich Wireless-Networking Products Continue To Advance The ease and convenience of wireless networking continues to attract more home and small-office/home-office (SOHO) users. As wireless-networking products drill further down into the consumer population, however, they must fulfill some different and... — Nancy Friedrich Bluetooth Headset Blocks The Wind On a windy day, using a cell phone outdoors can be so noisy that conversation is impossible-or at least intolerable. To combat this noise, Cardo Systems, Inc. (www.cardowireless.com) has debuted the scala-500. This versatile, comfortable, and... — Nancy Friedrich Portable Media Players Top Many Wish Lists For tech-savvy people, electronic products have become "must-have" gifts during the holidays. The past few years have seen rising holiday sales of cell phones, MP3 players, digital cameras, and high-definition and plasma TVs. Now, handheld... — Nancy Friedrich Media Content Flies Through Home Bigger and better home entertainment is a consumer fantasy. Yet entertainment systems also must be extremely intuitive. Don't forget that most consumers never even wanted to learn how to program their VCRs. Now, companies want to give users a way to... — Nancy Friedrich All-In-One Device Delights Travelers Today's business travelers have to be connected at all times. Unfortunately, their destinations aren't always equipped to help them-especially when it comes to wireless access. To keep travelers and SOHO users wirelessly connected, SMC Networks... — Nancy Friedrich Cellular Phone Strives For World Dominance Until recently, there's been hardly any reason to bring one's cell phone abroad. As different regions and countries rallied around their favorite standards and fought to have them succeed, no one took steps to make sure that these technologies were... — Nancy Friedrich [Editor's Note] Tell Us Your Worst Design Nightmares The past few years have been tough, to say the least. Sales have dropped, cutbacks have been implemented, and staffs have been trimmed. As engineering companies have become more "streamlined," one would think that projects would run more smoothly.... — Nancy Friedrich [On The Wireless Front] On The Wireless Front Milpitas, California Linear Technology Corp. recently announced the LT3471. This dual-channel (boost/inverter), 1.3-A, 1.2-MHz DC/DC converter is packaged in a 3-x-3-mm DFN. It can be configured as a dual... — Staff |
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