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Industry News

News From Washington

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News From Washington EMS Technologies Awarded $22 M Contract to Develop AEHF Antenna Subsystems EMS Technologies Inc. announced that TRW Inc. has selected EMS for a contract valued at approximately $22 M over approximately three years to deliver the beam forming network (BFN) for the first two satellites of...
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International Report

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International Report R & S Launch First Officially Validated GSM 850 Protocol Test Platform With its eyes firmly fixed on the 2002 introduction of the new Global System for Mobile communications (GSM) 850 mobile radio standard by US telecommunications providers such as AT&T, German contractor Rohde & Schwarz (R...
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The Commercial Market

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The Commercial Market ETSI and the H2GF Co-operate to Ensure the Completion of HiperLAN2 Standard The European Telecommunication Standard Institute (ETSI) and the HiperLAN2 Global Forum (H2GF) have signed a co-operation agreement intended to ensure the establishment of a global short-range broadband wireless infrastructure. The agreement was signed by...
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The Book End

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The Book End Ridge Waveguides and Passive Microwave Components Joseph Helszajn The Institution of Electrical Engineers 327 pages; $98 ISBN: 0-85296-794-2 The ridge waveguide is an important transmission line used in microwave engineering. The important quantities, which describe any waveguide, are its propagation constant, attenuation and mode spectrum. This...
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A Portable Base Station Installation and Commissioning Test System

Introduction to a base transceiver station test system capable of providing adaptable on-site testing for the verification of transmit and receive paths of base stations
Racal Instruments Limited
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Product Feature A Portable Base Station Installation and Commissioning Test System Racal Instruments Limited Slough, UK Testing in the field puts singular rigorous demands on both the engineer and test equipment used, with the installation and commissioning of field installed base stations presenting particular challenges. Specific considerations include being...
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Software for Optimizing the Design and Low Cost Production of Waveguide Filters

Presentation of a newly released coupled-cavity filter software developed to allow optimized design of millimeter-wave waveguide bandpass filters
Zeland Software Inc.
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Product Feature Software for Optimizing the Design and Low Cost Production of Waveguide Filters Zeland Software Inc. Fremont, CA Because of their low loss and high power-handling capability, waveguide filters have been widely used in telecommunications and wireless communications systems. The key to gaining a competitive edge in the...
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A Complete Spectral System Analysis for RF/Microwave Engineers

A new spectral domain system simulator is featured
Eagleware Corp.
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Cover Feature A Complete Spectral System Analysis for RF/Microwave Engineers Eagleware Corp. Norcross, GA Historically, RF and microwave system designers have been forced to resort to a hodgepodge of commercial and custom-written software to characterize and simulate the frequency-domain behavior of complex RF systems and subsystems. This approach tends...
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WCDMA Application of Gain Blocks

Description of the detailed operating characteristics of InGaP HBT gain block products that are widely used in 2G, 2.5G and 3G applications
EiC Corp.
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Product Feature WCDMA Application of Gain Blocks EiC Corp. Fremont, CA This article deals with the detailed operating characteristics of InGaP HBT gain block products that are widely used in 2G, 2.5G and 3G applications, using 3G WCDMA as the example. The linearity, expressed by adjacent channel leakage ratio...
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A New Wideband Family of Oscillators

Introduction to a new line of voltage controlled oscillators designed to increase power and widen bandwidth by incorporating multiple tuned circuits
Vari-L Co. Inc.
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Product Feature A New Wideband Family of Oscillators Vari-L Co. Inc. Denver, CO Modern communication systems are designed to handle ever increasing amounts of data by utilizing more bandwidth and more sophisticated modulation schemes. Voltage controlled oscillators (VCO) are used in almost all radio and RF applications including cell...
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Measurement of On-wafer Transistor Noise Parameters Without a Tuner Using Unrestricted Noise Sources

Presentation of a method for calibrating the four noise parameters of a noise receiver that does not require a tuner
A. Lázaro, M.C. Maya and L. Pradell
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Technical Feature Measurement of On-wafer Transistor Noise Parameters Without a Tuner Using Unrestricted Noise Sources This article presents a method for calibrating the four noise parameters of a noise receiver which does not require a tuner. The method permits using general (mismatched) noise sources, which may present very different...
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