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Subsystems and Systems

Vector Network Analyzers For Measurement to 50 GHz

A new suite of high performance vector network analyzers is featured
Cover Feature Vector Network Analyzers For Measurements to 50 GHz Agilent Technologies Inc. Santa Rosa, CA The HP 8510 vector network analyzer introduced by Hewlett-Packard in 1985 revolutionized microwave measurements by combining advanced techniques for characterizing components with the computational power afforded by the microprocessor. For the first time,...
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An Ultra-linear 3G Power Amplifier

Development of an ultra-linear power amplifier that operates from 2110 to 2170 MHz and delivers 15 W of output power with 45 dB of gain
Product Feature An Ultra-linear 3G Power Amplifier Unity Wireless Systems Corp. Burnaby, B.C., Canada Fig. 1 The amplifier's typical intermodulation performance. Third Generation (3G) wireless is the next phase in wireless communications, defined by the migration to packet-switched networks at high speed data rates. 3G capability will be a...
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Orthogonal Frequency Division Multiplex Overview

Explanation of the improvement gained by applying space diversity techniques to the orthogonal frequency division multiplex system in a multipath fading environment
Technical Feature Orthogonal Frequency Division Multiplex Overview Ali Zamanian Fluor Corp. Wireless broadband, also called wireless cable, was developed to provide local access to small business and residential users for the delivery of high quality digital data, video and voice services. Orthogonal frequency division multiplex (OFDM) is a modulation...
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Regrowth of Data Spectral Sidelobes from AM/PM Effects and Hard Limiting

Framework for analyzing and predicting the power spectral sidelobe regrowth from soft saturating amplification of data signals having small percentage carrier ripple
Technical Feature Regrowth of Data Spectral Sidelobes from AM/PM Effects and Hard Limiting Frank Amoroso Santa Ana, CA A previous article 1 set forth a framework for analyzing and predicting the power spectral sidelobe regrowth from soft saturating amplification of data signals having small percentage carrier ripple. The results...
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Linearity Requirements for MMICs for 16 Through 128 QAM ETSI Compliant Radios

Introduction to the regulatory and operational issues which influence linearity requirements and frequency planning aspects of high frequency microwave radios used for point-to-point or point-to-multipoint systems
Special Report Linearity Requirements for MMICs for 16 Through 128 QAM ETSI Compliant Radios Jim Harvey Mimix Broadband Webster, TX This article highlights some of the regulatory and operational issues that influence linearity requirements and frequency planning aspects of high frequency microwave radios used for point-to-point or point-to-multipoint systems....
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RAWCON2001 Conference Report

A recap of the 2001 IEEE Radio and Wireless Conference held August 19 to 22 in Waltham, MA
Special Report RAWCON2001 Conference Report RAWCON2001 Highlights Interdisciplinary Wireless Data Technology Michael S. Heutmaker RAWCON2001 General Chair The 2001 IEEE Radio and Wireless Conference (RAWCON2001), held in Waltham, MA, on August 19 to 22, 2001, explored interdisciplinary aspects of RF technology and wireless communications. This year several elements of...
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A Compact High Power SSPA for Satellite Communication Applications

Development of the first compact 1000 W C-band SSPA for satellite up-link applications
Product Feature A Compact High Power SSPA for Satellite Communication Applications Advanced Microwave Technologies Inc., ADVANTECH Dorval, QC, Canada Today's emerging satellite broadband applications require high power amplifiers. In recent years, significant advances have been made in solid-state technology that have resulted in solid-state power amplifiers (SSPA) becoming a...
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Advanced RF Technologies for the Wireless Market

Detailed overview of the different architectures available for transceiver ICs with greater emphasis on near-zero IF configuration
Technical Feature Advanced RF Technologies for the Wireless Market Yvan Droinet Philips Semiconductors Caen, France Most products in the wireless world require more and more miniaturization. This incentive leads integrated circuit designers to develop innovative architectures with higher and higher integration levels. On the one hand, there is a...
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A New Spread-spectrum Measurement Method for Satellite Transponder In-orbit Testing

Introduction to a new measurement method for beginning-of-life and in-service testing of satellite transponders that utilizes spread-spectrum signals
A New Spread-spectrum Measurement Method for Satellite Transponder In-orbit Testing This article introduces a new measurement method for beginning-of-life and in-service testing of satellite transponders that utilizes spread-spectrum signals. The basics of this new method, which permit measurement of amplitude and group delay of a transponder channel, are presented....
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Wireless Telecommunications Testing with S-series Microwave Power Amplifiers

Introduction to a line of amplifiers optimized for wireless telecommunication test use
PRODUCT FEATURE Wireless Telecommunications Testing with S-series Microwave Power Amplifiers Amplifier Research Souderton, PA Amplifier Research offers a broad range of power amplifiers covering DC to 40 GHz with output power ranging from 1 to 10,000 W. While applications include electromagnetic compatibility (EMC) testing, RF component testing, physics (plasma...
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