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Industry News

Ask Harlan, January 22, 2007

Harlan Howe has 34 years experience as a microwave design engineer and fifteen as publisher and editor of Microwave Journal ® , and is an IEEE Fellow and past president of MTT-S. He's here to answer your questions on RF and Microwave engineering.
Published January 22, 2007 From: Alessandro Chianetta, STM Dear Harlan, Could you explain in easy words what dual carrier modulation (DCM) consists of? Dear Alessandro, I am not sure how easy these words are, since it is not an easy concept. DCM is used in OFDM-UWB (Orthogonal Frequency Division...
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Ask Harlan: Question of the Month - January 2007

Published January 19, 2007 In an effort to better combine the editorial content of our magazine with our newly developed and retooled on-line presence, we have decided to expand Harlan's RF and microwave engineering advice into a monthly feature that appears in Microwave Journal. Harlan has selected one question...
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Andrew Expands Presence in India

Andrew Corp. , a global leader in communications systems and products, announced it has become the first company to manufacture both radio frequency cable products and antennas in India with the opening of its newly-built production facility in Goa. Andrew’s new Indian facility will serve the various equipment manufacturers...
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Richardson to Distribute Avago’s RFICs, Transistors and Diodes

Richardson Electronics announced a North American distribution partnership with Avago Technologies , San Jose, CA, to distribute its complete line of RFIC, transistor, Schottky and PIN diode, and millimeter-wave (mmW) products. Avago’s extensive line of RF semiconductors provides solutions for numerous markets including cellular base station, WLAN, WiMAX, GPS,...
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Comtech Receives $4.8 M Contract

Comtech Telecommunications Corp. announced that its Melville, NY-based subsidiary, Comtech PST Corp., received a $4.8 M contract from a major domestic OEM to supply high power amplifiers. These amplifiers are key components in a complex Identification Friend or Foe (IFF) system used to interrogate aircraft to determine their friend...
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6 × 6 mm Quad-band RF Transmit Modules for High Efficiency EDGE Operation

In today’s fast paced mobile handset market, design houses and manufacturers are challenged to meet a variety of targets to satisfy network provider’s high expectations in cellular and multimedia phones. Design cycle time, performance, feature requirements, form factor, quality and cost targets remain dominant selection criteria for mobile phone...
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Catalog Update

Application Note This application note, “Preamplifiers and System Noise Figure,” is designed to assist engineers in learning how to improve the accuracy of their measurements by using a low noise amplifier in front of a spectrum analyzer to reduce the effective noise figure of RF and microwave test systems....
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New Products

10 W Power Divider This new line of 10 W power dividers is designed for antenna and test applications. The model 151-201-008 is an eight-way, 50 Ω power divider that operates in a frequency range from 800 to 2000 MHz. This unit offers 22 dB typical isolation, 1.5 dB...
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