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Industry News

The Book End

Modern Receiver Front-Ends: Systems, Circuits and Integration Joy Laskar, Balak Matinpour and Sudipto Chakraborty Wiley-Interscience 234 pages; $79.95 ISBN: 0-471-22591-6 The main focus of this book is the integration of, and interaction among, various building blocks for, and the development and characterization of, receiver subsystems for wireless applications. Such...
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New Literature

Selection Guide This 20-page digital design and debug solutions selection guide includes product comparison tables for oscilloscopes, logic analyzers, pulse pattern generators, bit error ratio testers and probing solutions for easy evaluation and selection. The guide provides quick access to product information, expert and comprehensive product support, and technical...
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“Satellite On a Stick” for Path Link Simulation

Creating the complete transmission path of a satellite in training, development, troubleshooting, or system set-up applications requires three components: two earth terminals and a spacecraft. While terminals are generally accessible, satellite accessibility is more problematic, requiring costly leased time on an orbiting spacecraft and offering no control flexibility. Often,...
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An Algorithm that Accelerates Harmonic Balance Analysis of RFICs

For mobile phones, WLAN and other wireless applications, RF engineers need to perform sophisticated IC designs under strict time-to-market constraints. To make this possible, with as few prototyping cycles as possible, RFIC design tools must incorporate efficient methods for analyzing circuit behavior, accurate semiconductor models and flexible system modeling...
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New Physical Connectivity Engine for Native High Frequency Interconnect Verification

Microwave engineers have been forced to verify the validity of their high frequency design interconnects either by manual inspection or by using layout versus schematic tools designed for analog/digital design. Such tools, which are well established for low frequency design, tend to be less than optimal for high frequency...
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Making of a Robust Indoor Microwave Wireless Link: A Novel Scheme of Polarization-sense Diversity

This article describes a novel scheme of deploying “polarization-sense” diversity in indoor microwave wireless links. Unlike the traditional polarization diversity scheme where two orthogonally polarized (vertical and horizontal) antennas are used, thi...
The state-of-the-art indoor wireless systems operating at microwave frequencies (approximately 2.45 and 5.5 GHz) have been standardized in conformance with different multiplexing schemes and modulation techniques. The underlying design considerations 1,2 aim at realizing robust operation of several interconnected and coexisting hosts 3 across RF links. These links are...
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Averaging Correlation for Fast GPS Satellite Signal Acquisition in Multipath Rayleigh Fading Channels

In this article, a fast GPS satellite signal acquisition, based on an averaging-correlation algorithm, is proposed for frequency-selective multipath Rayleigh fading channels. In the Global Positioning System (GPS), receivers spend a long time acquiring...
The Global Positioning System (GPS) is a worldwide satellite navigation system, which consists of a constellation of 24 satellites and their ground stations. GPS signals are specially coded satellite signals that can be processed in a GPS receiver. When receiving the signals from at least four satellites, a receiver...
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Communications Satellite Antennas with On-orbit Pattern Flexibility

Commercial communications satellite operators face a difficult problem. In the rapidly evolving global telecommunications industry, entire market segments can emerge, thrive, change and disappear during the fifteen-year on-orbit lifetime of a modern communications satellite. To address these changing market needs, it would be desirable to have a communications payload...
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