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Comtech Telecommunications Corp. announced that its Tempe, Arizona-based subsidiary, Comtech EF Data Corp. , received a $2.8 M order from a leading communications integrator for its turboIP® performance enhancement proxy. The units will be deployed to support US Government installations around the world. Comtech EF Data's turboIP performance enhancement...

Keithley Instruments Inc. , a leader in solutions for emerging measurement needs, announced it has partnered with Mesatronic Group , Voiron, France, to develop advanced probe cards for semiconductor parametric testers used in RF and low current DC applications. William Merkel, marketing director for the Keithley Parametric Test Product...

The need for broadband wireless access (BWA) has long been acknowledged as the next step in the evolution of Internet access. Unfortunately, the lack of robust technology at a competitive price has been a barrier to its implementation. Today, though, momentum to cross the chasm is gathering—early adopters have...

With the blessing of the WiMedia Alliance, the stage is set for widespread implementation of certified wireless USB and next-generation Bluetooth 3.0 products, using multi-band orthogonal division modulation (MB-OFDM)-based ultra-wideband (UWB) physical layer (PHY). Wireless USB supports data rates of 53.3, 80, 106.7, 160, 200, 320, 400 and 480...

The demand on mobile communications has grown over recent years. Today’s mobile communication systems use sophisticated signal processing to achieve high transmission rates. The challenges for the next generation wireless systems will increase even further, when designs will need to meet multi-standards and achieve reconfigurability. Evaluations of various integration...

Mobile radio technology, based on the universal mobile telecommunications system (UMTS), is developing at breakneck speed. Network operators worldwide are currently upgrading their networks with new high speed downlink packet access (HSDPA) technology, which optimizes the data transmission from the network to the user equipment (downlink). New transmission methods...

Microwave Amplifier Brochure The Microwave Amplifier Brochure from AR Worldwide RF/Microwave Instrumentation features a wide range of microwave amplifiers. The brochure highlights the “S” and TWT amplifier series that covers 1 to 4000 W and 0.8 to 40 GHz and includes photographs, descriptions, specifications and performance graphs for each...

Published November 13, 2006 From: Hadi Ghazian, Tarbiat Modares University Dear Harlan, How can I calculate and measure the maximum power capacity of a cylindrical waveguide operating in the TE11 mode? Dear Hadi, The power handling of waveguides is a function of dimensions, surface finish, conductivity, dielectric strength of...

Over the next two years, Siemens will invest approximately €70 million in building a center for regional headquarters in Shanghai, China. Siemens Center Shanghai (SCS) will serve the eastern region of China and the aim is to consolidate all Shanghai-based Siemens business there by the end of 2008. More...

7 layers , an international service group for the wireless communications industry, with test and service centers in Europe, Asia and the US, has consolidated and enlarged its US-based offices and laboratories in order to further expand its services. Following continuous growth since 1999, the company is moving into...