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A power divider is a basic microwave and millimeter-wave circuit dividing the input RF power by an arbitrary ratio. This circuit has a wide range of applications such as antenna systems, power amplifiers, power oscillators, balanced mixers and so on. Multiport power dividers/combiners have been used in power amplifiers...

There is certainly no shortage of information about designing power amplifiers these days, and several books address the subject quite admirably. 1-6 However, as well as these books cover the theory and underlying logic of such designs, they do not tell the reader precisely how to do it. As...

Series- and parallel-combining of surface-mount capacitors is a standard approach to realize semi-arbitrary capacitance when designing a printed circuit board layout. This pairing of components is often necessary as surface-mount parts are available in only a limited number of fixed values, such as 0.5, 1.0, 2.0 pF. This article...

The International Telecommunication Union (ITU) standard Wideband Code-Division Multiple Access (WCDMA) was derived from code-division multiple access (CDMA), and is officially known today as IMT-2000 direct spread. It is a third-generation (3G) mobile wireless technology offering much higher data speeds to mobile and portable wireless devices than commonly offered...

Harris Corp. announced that it anticipates the award of a major subcontract from Lockheed Martin Mission Systems, Gaithersburg, MD, for the design and test of the wireless transmission system architecture as part of the three-year competitive down-select for Phase One of the US Army's Warfighter Information Network-Tactical (WIN-T) program....

Northrop Grumman Corp.'s Information Technology (IT) sector, a leading provider of advanced IT solutions, engineering and business services for government and commercial customers, and Flarion Technologies, the architect of a mobile broadband network technology for personal computing for data and voice using the industry standard Internet Protocol (IP), announced...

Teledyne Technologies Inc. announced that Teledyne Brown Engineering Inc. has received a five-year, $22 M contract from the US Army's Space and Missile Defense Command, to continue the development of Teledyne's Missile Defense Systems Exerciser (MDSE). The contract contains provisions for five one-year award-term options, which, if exercised, would...

Raytheon Co. has been awarded an $11.4 M contract by the US Army's Communications and Electronics Command for the production of the Light Thermal Weapon Sight (LTWS). Deliveries are set to begin in the second quarter of 2003, to be completed within one year. The LTWS is designed and...

New starts for America's Fiscal Year 2003 Foreign Comparative Testing (FCT) programme highlight a range of rest-of-the-world electronics, the key elements of which are as follows: • Anti-jam Global Positioning System (GPS) antenna A US Navy effort to evaluate a Raytheon Systems Ltd. (UK) developed shipboard anti-jam GPS antenna....

Successfully launched aboard the European Space Agency/European Meteorological Satellite's (EUMETSAT) Meteosat Second Generation (MSG)-1 satellite on 28 August 2002, the Astrium-sourced Spinning Enhanced Visible and Infra-Red Imager (SEVIRI) payload is set to radically upgrade the accuracy of nowcasting short-term weather forecasting for Europe, Africa and the Atlantic and Indian...