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Industry News

Transistor Technologies for RFICs in Wireless Applications

GaAs heterojunction bipolar transistors that combine the strengths of silicon bipolar transistors and GaAs FETs for RF applications
February 1, 1998
Transistor Technologies for RFICs in Wireless Applications This article presents a multidimensional technical analysis of RF transistor technologies for RFIC applications in cellular and personal communications service (PCS) markets. The first dimension describes the circuit design of each function block in the transmitter and receiver. The second dimension covers...
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COMPONENTS

February 1, 1998
COMPONENTS Coaxial Attenuators The 50SP series coaxial attenuators provide rugged dependability over the cellular/personal communications service (PCS) frequency range of 800 to 2000 MHz. Units are available within the 0 to 20 dB attenuation range with +/-1.5 dB accuracy from 1000 to 2000 MHz. Maximum SWR is 1.2 below...
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SOFTWARE

February 1, 1998
SOFTWARE Large-signal Modeling Software LASIMOâ„¢ version 2.0 software facilitates the development of accurate large-signal models by simplifying procedures for the extraction of MESFET and high electron mobility transistor large-signal models using a PC. The capabilities of LASIMO have been extended to allow new models to be incorporated and edited...
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PROCESSING EQUIPMENT

February 1, 1998
PROCESSING EQUIPMENT Circuit Board Plotter The ProtoMat 91s/VS series circuit board plotter allows rapid prototyping of RF and microwave circuit boards directly in the laboratory. High speed spindles with adjustable speeds of up to 60,000 rpm ensure high quality milled tracks with a smoothness of 5 mm (max). Both...
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MATERIALS

February 1, 1998
MATERIALS Thermal Adhesive Ablebond" 8177 adhesive is designed for applications requiring better dispensability and thermal conductivity. The adhesive provides high thermal conductivity (3 W/mK), and the rheological properties allow the epoxy to flow easily under components, making it suitable for applications such as bonding heat sinks or other heat...
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SYSTEMS

February 1, 1998
SYSTEMS Wireless Remote DAQ and Control System The Skyline series wireless remote DAQ system comprises a base station and remote radio platforms with attached digital and/or analog input/output modules. The system is fully synthesized and available in both UHF and VHF versions. The simplest remote terminal unit consists of...
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ANTENNAS

February 1, 1998
ANTENNAS Portable Antennas These FLEXTRON portable antennas are designed for specialized or standard cellular, PCS and ISM-band applications. The company has available 5/8-, 1/2- and 1/4-wave designs in rugged injection-molded, neoprene or the economical polyvinyl-chloride-coated shrink sleeve. Telescoping and articulating coil and whip designs are also available for device...
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LIGHTWAVE

February 1, 1998
LIGHTWAVE Light Sources These pulsed and CW light sources are available from 10 to 1000 W for single wavelengths or broadband radiation, including output that simulates the solar spectrum. Deuterium, arc and quartz tungsten halogen lamps and IR elements; calibrated irradiance sources; spectral calibration lamps; lasers; fiber-optic and monochromator...
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DEVICES

February 1, 1998
DEVICES High Pulse Power RF Transistor The model TPR700 high power common base transitor is designed to support the short-pulsed requirements for pulsed identification friend or foe applications in the frequency band from 1030 to 1090 MHz. The transistor features a minimum power output of 700 W peak with...
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INTEGRATED CIRCUITS

February 1, 1998
INTEGRATED CIRCUITS RFICs These RFICs provide all the major system blocks for digital, cellular, PCS and digital cordless telephone applications. Eight silicon-based versions are available that are divided into four families. The TRF1xxx series receivers feature conversion from RF to IF and a nominal supply voltage of 3.75 V;...
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