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International Report Philips to Expand Wafer Fabrication and Launches CD-ROM Processor Netherlands contractor Philips Semiconductors is investing an additional $15 M in discrete wafer fabrication at its Nijmegen, Holland plant in order to meet the anticipated demand for fifth-generation wideband RF transistors. Billed as Europe's largest semiconductor plant, the...

The Commercial Market Motorola Awards Cover GSM Network Expansions in China and UAE Motorola's Asia Pacific Cellular Infrastructure Group has signed a $15 M contract with the Beijing Telecommunications Administration (BTA) for the expansion of the Global System for Mobile communications (GSM) network in Beijing, China. This fourth phase...

The Book End Green's Function, Finite Elements and Microwave Planar Circuits J. Helszajn John Wiley & Sons Ltd. 259 pages; $65 Applying Green's function to planar microwave circuits is well accepted as a fundamental tool in electromagnetic analysis. This book presents comprehensive and detailed methods for describing practical microwave...

A Portable Rubidium Reference Timebase Generator United Computer and Telecommunication Inc. (UCT) Irvine, CA With today's sophisticated communications systems comes the need for better frequency accuracy, control and correlation. Rubidium-based frequency and time standards have been the ultimate accurate signal source for laboratory use, but these instruments have not...

A Wideband Synthesized Test Translator A new wideband synthesized test translator has been developed to simulate the transmission paths for direct-broadcast satellite (DBS) systems and to automate testing of set-top boxes used in broadband wireless applications. The model UC-140/1485-003 test translator provides a convenient way to characterize DBS systems...

Plastic Surface-mount Doublers That Cover Up to 6 GHz Hittite Microwave Corp. Woburn, MA Wireless communications applications continue to evolve at a furious pace. New applications are emerging endlessly such as wireless local loops and multipoint multichannel distribution systems. Wireless local area networks are increasing in frequency from 900...

A Variable Data Rate VSAT Broadband Receiver Stanford Telecom, Telecom Component Products Group Sunnyvale, CA Very small aperture terminal (VSAT) system suppliers are constantly seeking ways to keep their systems flexible and up-to-date with current and future data rate requirements. In addition, there is constant pressure to reduce system...

Microwave Applications Using Photo-imageable Technology The need to reduce manufacturing costs requires technologies that allow the integration of a microwave circuit and its associated driver on the same substrate. FODEL® photo-imageable technology, an extension of a traditional thick-film process providing a higher line resolution, has been considered in the...

A Multilayer Microstrip Patch Antenna Subarray Design Using CAD This article describes the design and development of an X-band, linearly polarized 4 × 4 element aperture-coupled microstrip patch antenna (ACMPA) subarray with a corporate feeding network. To reduce the design cycle time, commercially available CAD software packages are utilized...

Backside Connections Bill Oldfield Wiltron Co. Morgan Hill, CA The connector interface and its effect on calibration accuracy have been discussed previously. 1 This article focuses on the other side of the connector, the backside, where the connector interfaces with the circuit. It is this area where the design...