RF & Microwave Industry News

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A Fiber-optic-based Programmable Delay Line Princeton Electronic Systems Inc. (PES) Princeton, NJ An important application of optoelectronic devices in microwave signal processing is optical delay lines. Optoelectronic devices with wide bandwidth, high dynamic range and small size play a crucial role in the performance improvement of signal processing systems....

DC to 110 GHz Measurements in Coax Using the 1 mm Connector The 1 mm coaxial connector was designed to provide an enabling technology for test systems that work up to 110 GHz. It was introduced as an open standard to the RF and microwave industry through the IEEE...

Technologies for Wireless Applications: Past, Present, and Future Peter Staecker Microwave Journal Guest Editor This special section contains articles based on papers originally presented at the IEEE MTT-S International Topical Symposium on Technologies for Wireless Applications held in Vancouver, BC in February in conjunction with INTER COMM® '99. The...

Characterization of a Double-doped Power HJFET for W-CDMA Cellular Handset Application Demands on next-generation wideband CDMA (W-CDMA) handset transmitters (and thus power devices) include high linearity and high power-added efficiency (PAE) under low voltage supply. A power heterojunction FET (HJFET) has been developed for such applications, achieving a high...

Planar Integrated Antenna Technology Over the last several decades, the development of planar antenna technology has fundamentally changed the microwave and millimeter-wave communication fields. Planar antennas can be printed on dielectric substrates with minimal cost and processing. In many applications, these compact and low profile antennas offer an inexpensive...

Correlation between Ungated Recess Width and Linearity of GaAs MESFETs Intermodulation distortion and adjacent-channel power ratio (ACPR1) performance of GaAs MESFET discrete and MMIC power amplifier (PA) devices has been found to be dependent on the width of the ungated recess. Devices with wide ungated recess exhibit soft gain...

Indium Phosphide Heterojunction Bipolar Transistor Technology for Future Telecommunications Applications Kevin W. Kobayashi, Aaron K. Oki and Dwight C. Streit TRW Inc., Space & Electronics Group Redondo Beach, CA Over the past decade there has been a significant shift in the microwave and millimeter-wave industry from space and defense...

LTCC-M: An Enabling Technology for High Performance Multilayer RF Systems B. Geller, B. Thaler, A. Fathy, M.J. Liberatore, H.D. Chen, G. Ayers, V. Pendrick and Y. Narayan Sarnoff Corp. Princeton, NJ Over the last several years, the highly competitive wireless market has pushed manufacturers of RF hardware toward the...

Around the Circuit INDUSTRY NEWS Epitaxial Products International Ltd. and Quantum Epitaxial Designs Inc. have merged in an effort to provide the highest quality optoelectronic and electronic epitaxial wafers to the semiconductor market. The new International Quantum Epitaxy plc (IQE) will also draw on the proven strengths of its...

New Literature Programmable DC Power Supply Brochure This four-page brochure describes programmable DC power supplies that offer a one-box-solution architecture, remote sensing, programmable protection settings, electronic calibration, low ripple and noise output, and a standard GPIB interface. Product photographs and outline drawings are provided. American Reliance Inc. (AMREL), Arcadia,...