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Industry News

The International Broadband Wireless Jigsaw

A survey of impending international changes and developments in the world of broadband wireless technology
Stephen McClelland
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EUROPEAN SUPPLEMENT The International Broadband Wireless Jigsaw From ramp-up to near-3G services to developing broadband wireless for fixed network access, this year has seen major moves in the deployment of wireless services and technology introductions. In this special supplement, Microwave Journal surveys the impending international changes and developments in...
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High Performance Wideband MMIC Low Noise Amplifiers

Two fabricated 0.25 µm first-passs pHEMT wideband MMIC low noise amplifiers that operate from 1 to 8 GHz and 5 to 20 GHz, respectively
J.J. Yu and S.T. Chew
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TECHNICAL FEATURE High Performance Wideband MMIC Low Noise Amplifiers This article presents two fabricated 0.25 µm first-pass pHEMT wideband MMIC low noise amplifiers (LNA) covering 1 to 8 GHz and 5 to 20 GHz, respectively. Wideband MMIC LNAs are usually designed with the emphasis on noise figure, which sacrifices...
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The Basics of Print Reciprocal Dividers/Combiners

Reciprocal dividers employed to combine the power of a number of oscillators or amplifiers at a single port
Leo G. Maloratsky
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TUTORIAL The Basics of Print Reciprocal Dividers/Combiners Leo G. Maloratsky Rockwell Collins, Air Transport Systems Melbourne, FL A reciprocal divider can provide an equal or unequal power split between two or more channels. Because of their reciprocity, these networks may also be employed to combine the power of a...
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Intermodulation Product Second-order Interferers in Dual-band Systems

A variety of attempts to reduce or eliminate intermodulation in modern mobile communications systems
Werner Wild
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TECHNICAL NOTE Intermodulation Product Second-order Interferers in Dual-band Systems Werner Wild Spinner Company München, Germany T he problem caused by the generation of intermodulation products within modern mobile communication systems where nonlinearities are present is already well known and discussed. A variety of attempts to reduce or eliminate intermodulation...
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Analysis of Photonic Bandgap Surfaces Using Ansoft HFSS

Photonic band gap (PBG) constructions with the ability to produce substrates, ground planes and other structures that have a forbidden frequency range
Richard Remski
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APPLICATION NOTE Analysis of Photonic Bandgap Surfaces Using Ansoft HFSS Richard Remski Ansoft Corp. Grand Prairie, Tx T he microwave industry recently found-new uses for concepts familiar to solid-state designers in the form of photonic band gap (PBG) constructions. PBG constructions offer the ability to produce substrates, ground planes...
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New Products

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NEW PRODUCTS COMPONENTS * 5­6 GHz Hybrid Coupler The Xinger ? 1M803 surface-mount 90? 3 dB hybrid coupler for use in the 5 to 6 GHz frequency range is designed for U-NII and HiperLAN applications. It provides a minimum isolation of 20 dB and a maximum insertion loss of...
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Around the Circuit

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AROUND THE CIRCUIT INDUSTRY NEWS *          Narda, an L-3 Communications company, Hauppage, NY, has acquired Wavetek Wandel & Goltermann's Safety Test Solutions based in Eningen, Germany. The new entity, Narda Safety Test Solutions, will be the holder of 95 percent of the patents related to the detection of RF...
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New Literature

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NEW LITERATURE *          Ceramic Resources This 350-page hardcover book (Glazes and Glass Coatings) focuses on the process of making ceramic coatings, their chemical makeup and the properties of these coatings. It includes 125 photos and illustrations, 70 in full color, and applies to industries involved in the manufacturing of...
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Web Update

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WEB UPDATE *           RF/Microwave Components This site features broadband low cost RF/microwave components, custom design services, L- to X-band plastic-packaged medium to high power GaAs FETs (frequency up to 10 GHz, supply voltage up to 7 V and output power up to 4 W) and power modules (3.4...
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News From Washington

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NEWS FROM WASHINGTON According to BridgeNews, the Pentagon is seriously considering splitting the award of the Joint Strike Fighter (JSF), its next-generation fighter aircraft, between the Boeing Co. and Lockheed Martin Corp. instead of making a single award to one or the other. Boeing and Lockheed Martin are currently...
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