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WEB UPDATE     RF Filters This Web site provides concise information about SAW filters and SAW-based subsystems, including product data sheets and company and investor information plus SAW basics. The site is continually being updated, and a new expansion highlights the company's Microsensor Systems Inc. division and its...

PRODUCT FEATURES Ultraminiature VCOs for Wireless Applications Z-Communications Inc. San Diego, CA M any electronics manufacturers in the subscriber industry have realized tremendous reductions in semiconductor and passive packaged products since the advent of surface-mount assembly equipment in the mid-1980s. This has been evidenced of late with the introduction...

PRODUCT FEATURES Characterization of Low Loss LTCC Materials at 40 GHz DuPont Microcircuit Materials Research Triangle Park, NC T he dramatic increase in the application of microwave technologies due to the growth in wireless communications has created many challenges for interconnect and packaging technologies. The majority of wireless equipment...

PRODUCT FEATURES A Breakthrough SAW Duplexer for Cellular Applications Sawtek Inc. Orlando, FL A s RF design engineers are tasked to integrate more radio functions into cellular handsets while migrating from single-mode to multi-mode/multi-band models, it's natural to conclude such a hybrid would increase in size, weight and cost....

PRODUCT FEATURES Snap-on SMA Connectors Radiall Rosny-Sous-Bois, France T he prime considerations for engineers when fitting connectors in field conditions are ease and speed of installation, along with the optimization of space, which all contribute to the reliability and cost-effectiveness of a project. Offering an adaptable and versatile solution...

Technical Feature History of Ultra Wideband Communications and Radar: Part II, UWB Radars and Sensors This article is the second in a two-part review addressing the history of ultra wideband (UWB) communications and radar. The first part covered UWB communications, and here UWB radars and sensors are addressed. There...

Technical Feature Gallium Nitride-based Microwave and RF Control Devices This article describes origins of the use of high electron mobility field-effect transistors (HEMT) based on AlGaN/GaN technology as control components for high power microwave and RF control applications. Robert H. Caverly, Nikolai V. Drozdovski and Michael J. Quinn Villanova...

Technical Feature 0.24-µm CMOS Technology and BSIM RF Modeling for Bluetooth Power Applications This article reports the experimental evaluation of a 0.24- µ m CMOS technology for Bluetooth power applications. From load-pull measurements, the 0.24- µ m CMOS power transistor can deliver 23 dBm output power with 39 percent...

Technical Feature Carrier-to-Interference Ratio Prediction of Nonlinear RF Devices A common performance measure of radio communication systems is the carrier-to-interference ratio (CIR). A new method for estimating the total CIR degradation by a nonlinear device is presented in this article. Using a kernel function derived from swept power two-tone...

Technical Feature Multi-layer Thin-film MCM-D for the Integration of High Performance Wireless Front-end Systems Thin-film multi-layer multi-chip module with deposited substrate (MCM-D) technology using the system in a package concept is presented as a viable approach for the integration of high performance wireless front-end systems. Due to the high...