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Quadrature Hybrids and Directional Couplers for Telecom Applications Sage Laboratories Inc. Natick, MA Traditional couplers and hybrids have been manufactured using stripline, microstrip, airline, transverse electromagnetic line and waveguide technologies, and have been driven primarily by the military and low volume test set markets. As such, these devices have...

GaAs MMICs for Changing Base Station Requirements Hittite Microwave Corp. Woburn, MA Today, wireless infrastructure designers are being faced with increasingly challenging design requirements. Cellular base transceiver stations (BTS), or base stations, are becoming smaller, smarter, higher performance, self-contained and lower cost simultaneously. Early cellular BTS designs, which are...

The Changing Tide: Europe Turns to the Market Bhawani Shankar European Microwave Journal Staff Barely five years ago, the microwave industry in Europe appeared to be locked in an uncertain battle against the twin forces of unproven markets and a dwindling list of orders. Today, a similar analysis of...

Major Advances in Phased Arrays: Part II This article is the second in a two-part series describing the major accomplishments in phased arrays and new-age MMIC ground-based and airborne arrays. Part one covered significant advances made in phased arrays over the last 35 years and the entry into the...

Industry Organizes to Handle Shrinking C4I Market The recent Frost & Sullivan report, "US Military Command, Control, Communications, Computers and Intelligence (C4I) Markets," addresses the likely development of funding priorities for theater and national missile defense, tactical communications and information warfare under Secretary of Defense William Cohen and the...

Matra Marconi Wins Europe's Largest TV Uplink Earth Station The Franco-British Matra Marconi Space consortium has been awarded a multimillion-pound contract to provide British Sky Broadcasting (BSkyB) with Europe's largest television uplink earth station. To be located at Chilworth in the UK, the new facility will provide up to...

1996 US Factory Electronics Sales Rise Nine Percent The Electronic Industries Association reports that 1996 US factory sales of electronics equipment, components and related products exceeded $409 B, a nine percent increase over 1995 results. The telecommunications sector enjoyed the largest yearly gain with sales of $63.5 B in...

Phased Array-based Systems and Applications Nicholas Fourikis John Wiley & Sons Inc. 426 pages; $74.95 Phased arrays are used currently in radar, communications, electronic warfare (EW) and radio astronomy and soon will be commonplace in airport safety and traffic systems, environmental sensing and systems to manage the Earth's resources....

A GSM DIGITAL RADIO COMMUNICATIONS TEST SET Marconi Instruments Inc. Marconi Instruments Inc. Allendale, NJ Without question, the Global System for Mobile communications (GSM) is the dominant digital cellular radio technology in use throughout the world. Originally designed for the European market, GSM has been adopted to meet the...

THREE DIMENSIONAL EM SOFTWARE FOR PCs   Sonnet Software Inc. Liverpool, NY Commercial three-dimensional (3D) electromagnetic (EM) software has become a key to rapid prototyping and design of high frequency components, systems and antennas. However, these software packages have been practically limited to UNIX workstations or supercomputer environments because...