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Technical Features Asymmetric Coplanar Strip Analysis Including Conductor Backing and Upper Shielding Coplanar strip transmission lines (CPS) are widely used, for example, whenever balanced lines are required to feed printed circuit board (PCB) antennas or in balanced mixers, or as interconnecting lines in high speed digital circuits. In such...

Technical Features History of Ultra Wideband Communications and Radar: Part I, UWB Communications Although there is considerable overlap in the subcomponents of ultra wideband (UWB) communications and UWB radar/sensor systems, it is natural to treat the history of the two systems separately for several reasons. Whereas a UWB communications...

Technical Features Code Domain Analysis on W-CDMA User Equipment Transmitters Marta Iglesias-Xamani Agilent Technologies Inc. Santa Rosa, CA W ideband CDMA (W-CDMA) is one of several digital cellular technologies that is competing for the third generation (3G) cellular market. The earlier Japanese W-CDMA trial system and the European Universal...

Special Report Bluetooth-enabled Microwave Ovens for EMI Compatibility With Bluetooth™ initiatives placing bite marks on wireless communications, an associated problem that looms in the horizon in the form of EMI is attributed to electromagnetic emanations from high power ISM devices, such as microwave ovens. Since Bluetooth is largely conceived...

Special Report RAWCON2000 Conference Report Michael S. Heutmaker Lucent Technologies Princeton, NJ T he 2000 IEEE Radio and Wireless Conference (RAWCON2000), held in Denver, CO, from September 10 to 13, explored interdisciplinary aspects of RF technology and wireless communications. Approximately 250 people from 18 countries took in a program...

Special Report 2000 Wireless Workshop Review Harlan Howe Jr. Microwave Journal staff T he 2000 Wireless Workshop was held October 22 to 25 in Sedona, AZ. This was the 12th annual workshop, an event that has evolved into a technical forum and interactive discussion group for design and manufacturing...

Tutorial A General Design Procedure for Bandpass Filters Derived from Low Pass Prototype Elements: Part II K.V. Puglia M/A-COM Inc. Lowell, MA P art II of this bandpass filter tutorial features several examples that illustrate the general design procedure for bandpass filters using resonators and coupling methods of different...

THE BOOK END * Advanced Array Systems, Applications and RF Technologies Nicholas Fourikis Academic Press 362 pages; $79.95 ISBN:0-12-262942-6 The focus of this book is in the processing of signals derived from active array systems at their RF and intermediate frequencies, as opposed to earlier books that concentrate on...

Catalog Update * Resistive Products Catalog This 61-page catalog introduces new lines of resistors, terminations and attenuators designed for microwave and RF applications. All resistive products are designed and fabricated using non-toxic, environmentally safe aluminum nitride substrates. Product drawings, specifications and schematics are included. American Technical Ceramics, Huntington Station,...

AROUND THE CIRCUIT INDUSTRY NEWS * Rockwell Collins, a business of Rockwell International Corp., has entered into a definitive agreement to acquire display solution supplier K Systems Inc. The purchase price is approximately $300 M. * Cree Inc. has entered into a definitive agreement to acquire UltraRF, a division...