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MARCH 2003 | |
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March 2003 - In This Issue [Cover Story] Cool RF Transistors Pack A Mean Punch Power-Amplifier (PA) and base-station manufacturers are faced with a series of similar problems. They both have a common interest in keeping base stations cool and minimizing cost. And they each have a desire for access to more than one independent... — Cheryl Ajluni [Special Report] Nanotechnology Plans Its Entry Into Wireless Interest in nanotechnology can be traced back to an influential 1959 talk by Richard Feynman, the famous Nobel Prize-winning physicist. During that speech, Dr. Feynman argued that scientists and engineers alike needed to begin studying ways to build... — John Blyler [Design Application] Software-Defined Radios Make Their Move The term "software-defined radio" refers to the use of software-programmable hardware to provide flexible radio solutions. It is conventionally abbreviated as SDR (see sidebar). The concept behind the technology is that it will provide software... — Tim Owen Troubleshooting Dual-Band WLAN Radios We are experiencing continuing and substantial growth in the IEEE 802.11 WLAN marketplace. Much of this growth is being fueled by the introduction of dual-band radios. These radios are capable of operating under the IEEE 802.11a protocol at 5 GHz... — Richard L. Abrahams RF MEMS Experience Growing Popularity In the last two years, the development and deployment of devices based on microelectromechanical systems for radio-frequency applications, or RF MEMS, have gained rapid ground. These new technologies have made possible discrete micro-scale... — Dr. Wan-Thai Hsu Apply Service-Quality Management To Wireless Networks Traditionally, mobile network operators and service providers have relied on network-management platforms to optimize the performance of their networks. The telecommunications landscape is changing, however, with the advent of 2.5G and 3G... — Laure Reillier Generating ROI Is A Top Priority For Data-Capable Networks Wireless network operators, or carriers, are under intense competitive pressure. They must generate ROI on the massive investments that they've made to roll out data-capable networks. Specifically, carriers must compensate for flat-to-waning voice... — Amar Patel [Product Features] Memory Solution Frees Up Storage Capacity In second-generation (2G) phones, memory is mainly used for voice. In some parts of the world, it is also used for SMS messaging. But 2G memory provides limited room for code storage and user storage capacity. Now, the onset of data services and the... — Nancy Konish PA Puts Emphasis On Power Control Mobile handset design remains one of the most challenging aspects of wireless development. This issue is derived largely from the market's demand for handsets with greater performance and longer battery life. At the same time, consumers are... — John Blyler Gaming Device Heats Up The Market The wireless gaming market is heating up, thanks to a recent product announcement by the wireless intellectual-property (IP) licensing company, TTPCom. Its product, B'ngo, is a console-style gaming device. Yet it's also a fully featured, tri-band... — John Blyler Cellular Processor Makes Its Debut Today's wireless-system engineers are often left dealing with contradictory requirements. They must minimize device size, add functionality, and decrease battery life. At the same time, they need more silicon real estate. Intel Corp.... — Cheryl Ajluni [New Products] Technology Gives Devices Interconnectivity Recently, Motorola's Semiconductor Products Sector licensed the USB On-The-Go (OTG) technology from Trans-Dimension. This move positions the company to develop next-generation applications processors for the portable-information and wireless-device... — Staff DC/DC Converters Flaunt Rich Features Two additions to the Onami DC/DC converter series have come to market with a rich set of features. The Onami 5-V and Onami 12-V modules specifically target computer- and communications-equipment OEMs. Designers can use them in many different design... — Staff Audio Codec Targets Digital Voice And Audio The CMX649 compact, low-power, multimode audio-codec IC is now available to customers. Targeted specifically at the wireless digital-voice/audio-communications marketplace, this device offers full-duplex ADM (CVSD) and PCM (linear and A-law) modes.... — Staff 8-Mb SRAM Blends High Speed And Low Power The demand for high-speed, low-power devices is increasing. Stepping up to the plate to fill this demand is ISSI. The company recently introduced an 8-Mb, high-speed, asynchronous-monolithic backward-compatible SRAM. This device comes in several... — Staff Single-Chip Text-To-Speech Processor Cuts Its Price These days, cost is a common reason to not use a new technology. With a new and aggressive pricing strategy for its WTS701 Text-To-Speech processor, Winbond Electronics hopes to eliminate this obstacle once and for all. This single-chip processor is... — Staff 802.11a/b/g And 802.11g Chip Sets Sample Engineering samples for the WiND502 multimode IEEE 802.11a/b/g and the WiND512 IEEE 802.11g chip sets are now available. Both products are two-chip solutions with a common MAC/baseband processor, called the EN202, and a different but pin-compatible... — Staff Innovative Trench Process Technology Arrives A unique trench process technology has made its way into the market. On average, it delivers a 40% improvement in on-resistance when compared to other trench processes on the market today. This is true across all of the MOSFET package offerings that... — Staff Handsets Experience Multimodal Operation A breakthrough in mobile multimodal technology may set the stage for the mass-market adoption of simultaneous multimodality operation in wireless handsets. With this technology, subscribers can use voice/visual input and output at the same time on a... — Staff J2EE/Lotus Domino Applications Go Mobile Waplane is a mobilizing solution that was developed by Sofor Oy. It mobilizes any J2EE (WebSphere) or Lotus Domino application, such as Customer Relations Management (CRM), Enter-prise Resource Planning (ERP), or Field Sales Automation (FSA)... — Staff Noise Attenuator Slashes Size And Price The QuietPower output-ripple-attenuation module, dubbed QPO-1, relies on active filtering in a SIP package. It can thereby provide more than 20 dB of conducted differential noise attenuation from 60 Hz to 500 kHz. It is rated for 10 A and can be... — Staff Nanotechnology Gains A Boost In Support Research and development into nanotechnology is concerned with materials and devices that contain structures. These structures exhibit novel and significantly improved physical, electrical, chemical, and biological properties due to their nanoscale... — Staff Quad-Band Power Amplifier Is Ultra Small The smallest available quad-band power-amplifier (PA) module with integrated power-control circuitry has hit the market. As an extension of the PowerStar family of PA modules, the RF3133 product boasts the same power control based on collector... — Staff Control-Device Products Widen Applications Three control-device gallium-arsenide (GaAs) MMIC products in glass/metal (hermetic) SMT packages have now come to market. These products, which include two digital attenuators and an SP4T non-reflective switch, are especially well suited for... — Staff Solution Enables Broadband Service Next-generation wireless networks are now better enabled, thanks to an Ethernet product line known as AirPair. Hailing from a Canadian company, this line of products boasts high performance and reliability, as well as ease of installation and... — Staff [Column] LTCC-Based Packaging Enables 3D Functionality Today's high-bandwidth, high-speed networks demand packaging that is electrically and optically transparent. Yet that packaging also must serve as the prime method of mechanical and environmental protection. Fortunately, a way exists to satisfy... — Jim Lawson Designing Software For Handsets Is An Art Imagine that you've been given the task of developing the infamous "killer app" that will single-handedly save the telecom industry's struggling 3G-network market. Success will bring you instantaneous fame and fortune. Failure, on the other hand,... — John Blyler [News] Congratulations To This Year's Wireless-Industry Award Winners Once a year, the editors of Wireless Systems Design join their readers in honoring those outstanding people and wireless products that stand apart from the competitive field. These individuals and technologies serve as beacons to which the... — Nancy Konish Software-Defined Radio Gets Demonstrated For Base Stations Software defined-radio (SDR) technology is slowly but surely raising its profile in the wireless industry. At this month's CTIA Wireless show in New Orleans, for instance, ADC (www.adc.com) and Vanu, Inc. (www.vanu.com) demonstrated Vanu's Software... — Nancy Konish Enter The 3D MEMS Challenge To prove that 3D design isn't as cumbersome or time consuming as it used to be, MEMGen Corp. (www.memgen.com) has launched a micro-device design contest. This contest is open to all individuals who have commercial or research interest in... — Nancy Konish Silicon Meets 3GPP Specification The next-generation network rollouts have started, and they're certainly not synonymous as far as standards and technologies go. Everyone from device manufacturers to carriers needs to ensure that service losses and poor quality don't increase.... — Nancy Konish Test And Measurement Closes The Verification Loop The product-development process is constantly being refined. In one recent trend, test and measurement is joining electronic-design-automation (EDA) tools to smooth development. An example can be seen in Applied Wave Research's (www.mwoffice.com)... — Nancy Konish Bluetooth Plan Focuses On User Experience Bluetooth products are beginning to show themselves in the market. To ensure that end users have a positive Bluetooth experience, the Bluetooth SIG (www.bluetooth.com) recently unveiled the "5-Minute Ready" plan. This program was created to... — Nancy Konish On The Wireless Front Milpitas, California Linear Technology Corp. has recently come to market with the LTC4410—a USB power-manager IC in a ThinSOT 6-lead package. This IC enables the simultaneous battery charging and system... — Staff [Editor's Note] Are You Feeling Blue? Lately, I've been asking the above question a great deal—not necessarily of myself, but of the entire consumer marketplace. Let me explain. When I first took control of this publication, it seemed that no matter which way I turned, the only... — Cheryl Ajluni |
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