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Workshops & Courses RF Power Amps, Classes A-S Topics : Provides a detailed explanation of the various classes of RF power amplifiers, and where each class is used in today's wireless designs. Amplifier classes A through S are defined and clearly explained, including the advantages, disadvantages, applications and circuit...

News From Washington Rockwell Collins Receives Order for Multi-mode Receiver Rockwell Collins is the first to receive Federal Aviation Administration Technical Standard Order approval for a Multi-mode Receiver (MMR) equipped with Microwave Landing System (MLS) functionality that can be implemented in both commercial and military aircraft. Collins MMR is...

International Report Galileo Moves Forward The European Galileo satellite navigation system moved a step nearer to reality with a January 2003 industry day designed to cover applications to join and invest in the Galileo joint undertaking that will develop and manage the capability. Designed to provide Europe with an...

The Commercial Market MEMS in Consumer Electronics As far as the consumer electronic market is concerned, MEMS is slowly heading in the right direction, according to In-Stat/MDR. The high tech market research firm reports that the technology is moving forwards in terms of device development, increasing unit shipments, and...

High-Power Microwave Sources and Technologies Robert J. Barker and Edl Schamiloglu, Editors IEEE Press 483 pages; $125 ISBN: 0-7803-6006-0 This book is meant to serve as a definitive reference book for all individuals interested in high power microwave (HPM) sources for possible military applications. It does not discuss full...

Non-reciprocal ferrite devices are widely used in RF engineering as efficient means for rerouting and suppressing reverse signals. Ferrite devices for various applications are currently available for the entire microwave frequency band. However, the expanding utilization of RF and microwaves in wireless cellular and satellite communication systems revived the...

For many years switch filter banks have been designed as custom RF assemblies with long lead-time, large NRE charges and extreme custom packaging and specifications. A new modular approach to switch filter bank design has been introduced that provides the design engineer with the opportunity to maintain a custom...

Wireless device manufacturers today must fit a growing amount of functionality into continuously decreasing circuit board space. In particular, finding space for the antenna without compromising its performance characteristics has become a major challenge. The AccuWave™ 5800 antenna is an ultra-small tri-band device designed to provide full coverage of...

Electrical memory effects are defined as changes in amplitude and phase of distortion components caused by modulation frequency. There are several ways of measuring memory effects. One of the most common is to plot the phase and amplitude of the distortion parameters with respect to the tone spacing in...

Typical oscillator designs use a common-base or common-collector circuit for generating a negative resistance at one port, which is usually terminated with a parallel or series LC-resonant circuit. The main problems in this design are the bandwidth of the negative resistance, which cannot be easily extended over one frequency...