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To keep up with the growing needs of business sectors such as telecommunications, automotive, domotics, medical, aerospace and defense, the performance requirements of RF and HF transistors and amplifiers are increasing sharply. These products need to be affordable, and they must be able to handle more complex information, consume...

A 90° power combiner has been used for signal mixing at the intermediate frequency (IF) output port of an image rejection mixer. 1,2 Until now, a passive branch-line coupler was mainly employed for 90° power combining. 1,3 However, the passive branch-line coupler occupies a very large circuit area. For...

Recently, many types of wireless communication systems have rapidly developed and the demand for bandwidth has increased. The spread spectrum communication systems, such as the code division multiple access (CDMA) systems have attracted increasing attention because of their unique features that make it possible to transmit signals through noisy...

In recent years, the 60 GHz band has gained increased interest due to the large amount of license-free and little used frequency spectrum located in the vicinity of 60 GHz. A particular feature of this band is the high attenuation in air, close to 15 dB/km, regardless of weather...

Agilent’s Advanced Design System (ADS) 2009 Update 1 is a complete front-to-back solution for MMIC and RF module design. This includes a complete flow to manufacturing: Enhanced PDKs, Desktop LVS & DRC and Calibre LVS integration; full support for X-parameters*; enhanced integrated 3D EM analysis; and an easy-to-use Optimization...

Integration, performance and functionality are three of the most common requests made by RF and microwave designers striving for leading-edge systems with components that can help them deliver that often elusive market edge. In the world of signal generation, Hittite Microwave Corp. is meeting these challenges with the introduction...

Aeroflex / Metelics has introduced a family of RoHS compliant, silicon PIN diode surface-mount high power switches, ideal for high volume, high performance manufacturing in the military and commercial-industrial markets. These switches are ideal for higher power, higher linearity RF and microwave applications for the military radio, IED defeat,...

Harris Corp., an international communications and information technology company, has been awarded $44 M in orders to provide JTRS-approved Falcon III AN/PRC-152(C) handheld radios and accessories to the US Air Force. The radios will support the changing communication needs of the entire Air Force enterprise, including Security Forces, Special...

Raytheon Co. received a $9.9 M contract to perform concept studies for the US Navy’s Air and Missile Defense Radar (AMDR). This radar suite will consist of an S-band radar; X-band radar; and radar suite controller. The system will be scalable to meet the Navy’s current and future mission...

Space Systems/Loral (SS/L), a subsidiary of Loral Space & Communications and a provider of commercial satellites, announced that it has been selected to provide a satellite for Telesat, one of the world’s leading fixed satellite services operators. The new satellite, called Telstar 14R, will replace Telesat’s Telstar 14/Estrela do...