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Industry News

Commercial Market

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

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
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
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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A Broadband Bias Tee for Optical Networking Applications

A broadband bias tee for optical networking applications is featured ont his month's cover
COVER FEATURE A Broadband Bias Tee for Optical Networking Applications Inmet Corp. Ann Arbor, MI T he explosive growth of the Internet has created an insatiable demand for communications bandwidth by everyone, from the Web-browsing individual in the home office, to the multibillion-dollar corporation that is at a severe...
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A High Power LDMOS Transistor for Broadcast Transmitter Applications

A unique ultra-high frequency lateral double-diffused metal-oxide semiconductor (LDMOS) that cuts the cost of upgrading terrestrial transmitters for digital operation
PRODUCT FEATURES A High Power LDMOS Transistor for Broadcast Transmitter Applications Philips Semiconductors Eindhoven, The Netherlands D igitization in the broadcast world is paving the way for major new markets, such as high speed Internet access and mobile multimedia in-car entertainment, as well as high definition TV and a...
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RF Digital Attenuators in Plastic MLP Packages

A family of digital attenuators that produce five- and six-bit formats with least significant bit weights of 0.5 and 1 dB
PRODUCT FEATURES RF Digital Attenuators in Plastic MLP Packages M/A-COM Lowell, MA B roadband digital attenuators have been used to set power levels in RF and microwave circuits for many years. The concept is to electronically switch resistive T and P networks to attenuate and control signals. In doing...
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A High Order Frequency Multiplier for Low Power Applications

A direct frequency multiplier suitable for high order, low power multiplier applications
TECHNICAL FEATURE A High Order Frequency Multiplier for Low Power Applications D.R. Lang Comtech/EFData Tempe, AZ D irect frequency multipliers are commonly used in applications where the added phase noise or circuit complexity of a phase-locked loop is undesirable. At power levels above 1 mW, varactors or step recovery...
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SOLR Calibration for Grounded Coplanar Waveguide Lines

Short-open-line-reciprocal (SOLR) calibration of grounded coplanar waveguide lines using WinCal software
TECHNICAL FEATURE SOLR Calibration for Grounded Coplanar Waveguide Lines Shay Gross, Lawrence P. Dunleavy and Thomas M. Weller University of South Florida, Department of Electrical Engineering, Wireless and Microwave (WAMI) Program Tampa, FL This article examines short-open-line-reciprocal (SOLR) calibration of grounded coplanar waveguide (GCPW) lines. The calibration is made...
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CD Radio Promises Data and Audio Listening Relief

A look at digital audio broadcasting popularly referred to as CD radio, and the major players in the CD radio arena
SPECIAL REPORT CD Radio Promises Data and Audio Listening Relief Ernest Rejman Contributing Editor I f while driving on the interstate you cannot elude Hank Williams' laments about cheatin' love and his long-dead hound, or are trapped in New York, Chicago or San Francisco, irritated by bad reception when...
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