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Industry News

Shielding Formulas for Near Fields

Extremely low frequency formulas for magnetic shielding effectiveness
November 1, 2000
TECHNICAL NOTES Shielding Formulas for Near Fields R.C. Hansen Consulting Engineer Tarzana, CA This article reviews extremely low frequency (ELF) formulas for magnetic shielding effectiveness. In particular, the simple three-term Schelkunoff formula is accurate at all frequencies if the proper near-field, or far-field, wave impedance is used. E lectromagnetic...
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NEW PRODUCTS

November 1, 2000
NEW PRODUCTS COMPONENTS *           Power Splitters The models PD22-73 power divider and HY22-73 90° hybrid are designed for the 2.1 to 2.3 GHz ISM band. The 50 W components offer low loss, high isolation and good phase/amplitude balance. The monolithic circuitry is 100 percent passive and available in...
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AROUND THE CIRCUIT

November 1, 2000
AROUND THE CIRCUIT INDUSTRY NEWS *          Spacek Labs Inc. , Santa Barbara, CA, has completed its acquisition of the assets of millimeter-wave amplifier manufacturer Sierra Wireless Systems . Financial terms of the cash agreement were not disclosed. *          Gel-Pak , ® Sunnyvale, CA, has acquired Silicon Packaging Technology Inc....
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New Literature

November 1, 2000
NEW LITERATURE *          Product Brochure This six-page brochure describes integrated assemblies, converter assemblies, log components, log IFs, components, filter banks and switch filter banks. Product photographs are provided. Descriptions of the company's manufacturing and engineering processes are included, as well as a company mission statement. AKON, San Jose, CA...
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News From Washington

October 1, 2000
NEWS FROM WASHINGTON THAAD System Development Contract Awarded Raytheon Co. has been awarded a contract from Lockheed Martin Co. to design, develop and manufacture three Engineering and Manufacturing Development radars for the Theater High Altitude Area Defense (THAAD) system. The award is valued in excess of $1.4 B and...
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International

October 1, 2000
INTERNATIONAL REPORT Martin Streetly, International Correspondent EADS Wins US Radar Contract T he European Aeronautic, Defence and Space (EADS) Co.'s Ulm, Germany-based Airborne Systems unit has been awarded a US$11.9 M contract by the US Navy (USN) that covers the supply of components for its AN/APG-65 radar programme. EADS'...
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Commercial Market

October 1, 2000
THE COMMERCIAL MARKET New Consortium Aims to Make TV More Personal and Interactive Microsoft Corp., DIRECTV Inc. and THOMSON multimedia have announced an alliance to bring a new advanced RCA ® DIRECTV™ system with the new Microsoft ® Ultimate TV™ service to market. The RCA DS4290RE system with Ultimate...
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THE BOOK END

October 1, 2000
THE BOOK END * Handbook of CDMA System Design, Engineering and Optimization Kyoung Il Kim Prentice Hall PTR 252 pages plus CD ROM; $80 ISBN: 0-13-017572-2 Code division multiple access (CDMA) has become a preferred choice of the wireless telecommunications industry. This book is the result of recent efforts...
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High Efficiency L- and S-band Transmitters

Miniature airborne telemetry transmitters that use a proprietary approach to amplifier design and feature previously unattainable DC-to-RF efficiencies
October 1, 2000
PRODUCT FEATURES High Efficiency L- and S-band Transmitters Emhiser Research Inc.- Verdi, NV A new line of miniature airborne telemetry transmitters has been introduced that uses a proprietary approach to amplifier design and features previously unattainable DC-to-RF efficiencies. The breakthrough design utilizes GaAs FETs in a configuration that eliminates...
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Multistage Depressed Collector Klystrons

Multistage depressed collector klystrons developed for C- and K-band commercail satellite service that feature a collector efficiency of 60 percent or greater
October 1, 2000
PRODUCT FEATURES Multistage Depressed Collector Klystrons Communications & Power Industries Canada Inc. (CPI Canada) Georgetown, Ontario, Canada F inding ways to operate satellite communications (SATCOM) high power klystrons more efficiently has a double-edged benefit. The SATCOM transmitter uses less prime power, saving uninterruptible power supply capacity, and the klystron...
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