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Achieving high linearity while preserving high efficiency in a power amplifier is a real design challenge. A few approaches have been reported to achieve good linearity and high efficiency in a power amplifier. These techniques use envelope tracking of the input voltage and adaptive bias methods. Hanington, et al....

Early flexible coaxial cables, circa World War II, typically consisted of a bare copper round wire inner conductor, solid or stranded, and a full density extruded polyethylene insulating dielectric making up the core. A copper round wire braid formed the outer conductor. The braid wires could be bare copper...

For many years Southwest Microwave has manufactured field replaceable connectors and launch accessories where connector performance was easily verified by measuring two connectors back-to-back as a two-port device. The responsibility for packaging and board layout fell to the user to develop independently. With the introduction and success of Southwest...

The telecommunications market is dynamic, constantly evolving and requiring significant product innovation in order to meet the demands of the 21 st century. To do so manufacturers must react to market needs and possess the expertise to instigate innovative processes, while also maintaining competitiveness. This is the approach taken...

Components Catalog Maury has a 146-page catalog covering the company’s entire line of precision coaxial and waveguide VNA calibration kits, microwave components and adapters, manual tuners, torque wrenches and connector gage kits. Entries feature detailed specifications, dimensional drawings, photographs, flange diagrams, ordering information and key reference materials. The catalog...

WiMAX Telecom has selected Alcatel-Lucent to supply the first WiMAX 802.16e-2005 (Rev-e) network in Croatia. The deployment will start in the area of Split and Osijek followed by other regions, and will operate in the company’s 3.5 GHz spectrum. Under the terms of the agreement, Alcatel-Lucent will supply its...

The Russian Satellite Communications Co. (RSCC) has selected a team of Khrunichev Space Center and Astrium to build the Express AM4 communications satellite, which will be delivered at the end of 2010. RSCC is focused primarily on the development of satellite communications and the broadcasting network in the Russian...

7 layers has opened its new test and service center – 7 layers Japan – in Yokohama. Consequently, the former agency, which the company has been working successfully together with since 2004, is becoming a full member of the 7 layers group. The new center will provide all test...

Skyworks Solutions Inc. , an innovator of high performance analog and mixed signal semiconductors enabling mobile connectivity, announced key design wins and production ramps for its growing line of power amplifiers (PAs), synthesizers, switches and silicon voltage-controlled oscillators (VCO). These products uniquely enhance the performance of analog solutions that...

KOR Electronics announced it has purchased the Government Solutions subsidiary, Paragon Dynamics Inc. (PDI), from Zanett Inc. for cash. Pagemill Partners served as exclusive financial advisor to KOR Electronics. Founded in 1986, KOR Electronics is an aerospace defense technology company providing domestic and international customers with advanced military electronics...