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International Report Euro Hawk Heads for Germany Despite the demands of Operation Enduring Freedom, Northrop Grumman and its German partner the European Aeronautic, Defence and Space (EADS) Company Deutschland confidently expect to deploy a testbed Global Hawk unmanned aerial vehicle (UAV) to Germany no later than April 2003. Forming...

The Commercial Market The IEEE 802 Committee Forms New Radio Regulatory Advisory Group The IEEE 802 Local and Metropolitan Area Networks Standards Committee (LMSC), at its 11-15 March plenary, approved the formation of a new technical advisory group (TAG) dedicated to addressing radio regulations as they impact the committee's...

Microstrip Filters for RF/Microwave Applications Jia-Sheng Hong and M.J. Lancaster John Wiley & Sons Inc. 471 pages; $125 ISBN: 0-471-38877-7 This book offers a unique and comprehensive treatment of RF and microwave filters based on microstrip structures. Many novel and sophisticated filters using computer-aided design are discussed. The book...

Microwave sensors are increasingly finding commercial applications, particularly in the automotive industry. Here, advanced features are used to distinguish vehicles, while safety is a major consideration in new car purchases. Therefore, it is not surprising that radar technology has been adopted and implemented in adaptive cruise control (ACC) systems....

Electromechanical distribution systems (switch matrices) are used in both commercial applications and military systems. Computer control of these switch matrices facilitates their use in automated testing and in those systems requiring remote control of switching functions. The newest product in Dow-Key's line of electromechanical switches is a single-pole 12-throw...

In today's age of high speed Internet, high frequency wireless and wireline communications, conventional materials are reaching their performance limits. Copper-based electrical connections are being limited by the dielectric properties of the insulating layer. Solutions using optical connections are available but are too expensive. Liquid crystalline polymers (LCP) are...

As the environments in which cell sites are located becomes more constricted, designers of base stations for third-generation networks are faced with challenges such as increased functional integration and other size-reduction techniques similar to those of their mobile phone counterparts. The model FEU-WCDMA1 is a W-CDMA RF front end...

Quadrifilar helical antennas (QFHA) are one of the best candidates to provide a high gain, shaped beam with excellent circular polarization axial ratio for satellite radio and mobile satellite phone systems. One of the most compelling reasons to use these antennas for digital radio and mobile satellite systems is...

Phased array antennas are traditionally used to produce narrow beams from large apertures. In this mode of operation, every radiating element in the array is broadly co-phased. The radiation pattern of the antenna is then the product of both the individual radiating element characteristic pattern and the array factor....

Optical networking and its supporting equipment, components and integrated circuits (ICs) are heading toward a market windfall, according to In-Stat/MDR. The high tech market research firm reports that with the geometric growth of the Internet, private IP networks and business-to-business (B2B) e-commerce, the demand for high speed capacity, within...