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The Influence of Phased-array Antenna Systems on LEO Satellite Constellations In this era of low earth orbit (LEO) satellite constellations, the phased array has become the antenna implementation of choice. Previously thought to be an expensive solution for satellite systems, the requirement to provide multiple beams makes the phased-array...

An Integrated Microwave Measurement Test Tool Guy Purchon, Bryan Harber and Tom McConnell IFR Ltd. Stevenage, UK The major instruments that form a microwave test bench have been combined into a single integrated test tool. The result is a one-unit solution to the problem of subsystem testing. This new...

Around the Circuit INDUSTRY NEWS Microwave multifunction module designer REMEC Inc. , San Diego, CA, is planning to acquire UK-based Airtech plc , a supplier of coverage enhancement products for wireless mobile communications networks, for approximately $32 M in REMEC common stock. The transaction is subject to Airtech shareholder...

New Literature Coaxial Cable Installation Accessory Catalog This catalog details cable installation accessories, lightning protection products (including the company's SureGround™ and SureGround Plus™ series grounding kits) and value-added services. Installation aids and new services for installers also are described. Andrew Corp., Orland Park, IL (800) 255-1479. Capability Brochure This...

News From Washington $400 M GPS Signal Enhancement Program Announced As reported in Global Positioning and Navigation News, a new six-year, $400 M initiative has been included in President Clinton's budget to modernize the Global Positioning System (GPS) and add two new civil signals to future GPS satellites. The...

International Report New UK Military Communications Satellite Launched This past February, the UK's SKYNET 4E military communications satellite was delivered into orbit by an Ariane 4 launch vehicle. The satellite is the second SKYNET 4 Stage 2 vehicle to be launched. (The first vehicle, SKYNET 4D, was launched in...

The Commercial Market Reports Forecast Global Mobile Telephony/DTH Satellite Service Growth Baskerville Communications Corp. has released a new report, "Global Mobile Forecasts," which offers a highly detailed discussion of worldwide mobile telephony growth by region. Noting that the number of global mobile subscribers has tripled between 1995 and 1998...

The Book End Advances in Computational Electrodynamics; The Finite-Difference Time Domain Method Allen Taflove (Editor) Artech House Inc. 724 pages; $99, £74 ISBN: 0-89006-834-8 This book (an updated edition of an earlier work on computational electrodynamics published in 1995) offers a compilation of material by a number of experts...

A Precision TNC Connector Gage Kit Maury Microwave Corp. Ontario, CA With the large number of TNC connector variations on the market and the critical nature of the connectors' dimensions to ensure proper mating, a means to check these dimensions accurately has quickly become a necessity. The model A012E...

Ultralinear Wireless Amplifiers Using Low Cost Building Blocks Phoenix Microwave Telford, PA Linear power amplifiers (LPA) play a very important role in high performance wireless base stations. Modern multicarrier LPAs improve cell site performance and capacity significantly. Older base station equipment used single channels, each amplified individually using high...