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DEVICES 100 W GaAs MESFET The type NES1823P-100 GaAs MESFET consists of two pairs of GaAs MESFET chips that can be combined externally in either a push-pull or balanced configuration. The unit is designed for 2.1 to 2.2 GHz base stations, but can be used in 2.3 to 2.4...

  INTEGRATED CIRCUITS 50 W Power Hybrid The model HIT 1819001-35 50 W power hybrid is designed for applications that require linear power amplification in the PCS frequency range. The unit is designed to operate with 50 W source and load impedances and includes bias circuitry with temperature compensation....

SOURCES Low Silhouette Rubidium Frequency Standard The model FE-5680A rubidium frequency standard offers a low silhouette of less than 1". The unit serves as a replacement for precision quartz where stringent height requirements and high stability are needed, such as in communications and timing applications. Additional features include stability...

TEST EQUIPMENT RF Power/Volt Meters The 5230 series power/volt meters measure RF voltage from 10 Hz to 2.5 GHz and measure power from 10 kHz to 100 GHz. When operating as a power meter, the unit can make more than 200 measurements per second and measures power levels from...

SUBSYSTEMS Ku-band Upconverter The model U-94-127181 upconverter provides three uplink frequency bands with continuous tuning in 125 kHz (min) frequency step sizes, including 12.75 to 13.25 GHz, 13.75 to 14.5 GHz and 17.3 to 18.1 GHz. The upconverter has low phase noise with both frequency and level controlled by...

SOFTWARE S-parameter Calculation Software CST Microwave Studio series design software provides efficient and accurate calculation of S parameters in a Windows-based environment. The software incorporates the proprietary perfect boundary approximation technique for accurate modeling of curved surfaces while maintaining the good performance of the FI method in the time...

News From Washington Sanders to Provide Communications Jamming Systems for EA-6B Upgrade Sanders, a Lockheed Martin company, has received a $12.9 M contract from the US Navy to provide its AN/USQ-113 communications jamming systems to be used in the upgrade of the EA-6B Prowler aircraft. Under the terms of...

International Report Asian Communication Satellite Comes on Stream Singaporean and Taiwanese telecommunications providers Singapore Telecom and Chunghwa Telecom Company Ltd. took title to the new ST-1 telecommunications satellite on 26 October following a two-month in-orbit workup period. ST-1 was launched from the Ariane Kourou, French Guiana launch site on...

Commercial Market Study Highlights Opportunities in US Satellite Markets Arecent report from Multimedia Research Group Inc. (MRG), "US Satellite Services Market: 1998–2005," discusses the rapid increases in satellite competition and in the use of mobile communication, remote data devices and satellite-based entertainment services that are expected to result from...

The Book End Theory of Nonuniform Waveguides: The Cross-section Method B.Z. Katsenelenbaum, L. Mercader del Rio, M. Pereyaslavets, M. Sorolla Ayza and M. Thumm The Institute of Electrical Engineers 249 pages; $95 Electronic devices that generate high power mm-waves produce electromagnetic fields with a very complex structure. It is...