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ANTENNAS 250 V/m Field Antenna The model AT4002A microwave horn antenna is capable of generating fields of up to 250 V/m with a gain of 11 dB (max) over isotropic. It accepts 250 W of input power from 0.8 to 5 GHz and supplies the high intensity fields necessary...

DEVICES Tuner Diodes The model SOD323 packaged varactor diodes require 50 percent less board space than their larger SOT23 packaged alternatives and have a reverse breakdown voltage of 25 V. The diodes offer users a nominal capacitance range between 8.2 and 68 pF for a VR of 2 V...

HARDWARE Two-part EMI Shield The BOLDT SHIELD II™ is a standard off-the-shelf, two-part electromagnetic interference shield packaged in standard EIA410 tape-and-reel formats for automated circuit board-level installation. Its unique design (with removable lid) provides easy access to inspect or repair important electronic components without having to detach the surface-mount...

INTEGRATED CIRCUITS 3 V Receiver The model AWR8004 wireless receiver is designed for 3 V operation and features conversion gain of 17 dB (typ) and noise figure of 3.5 dB (max). The unit offers low power consumption and a very small footprint and is highly integrated, allowing wireless system...

MATERIALS Reinforced Gap Filler The THERMA-A-GAP™ F574 thermally conductive elastomer is designed for efficiently transferring heat from components into various heat spreading devices. The material's thermal impedance ranges from 0.6° to 2.6°C-in2/W for thickness from 0.02 to 0.10 inch. The material consists of a soft silicone elastomer loaded with...

SOFTWARE Translator Software AnsoftLinks for the HP EEsof Series IV is a smart translator software utility that migrates entire high frequency circuit designs from series IV to the company's Serenade Design Environment. Designs are automatically converted into Serenade projects using IFF files and a specialized neutral format. Linear and...

SOURCES Weatherproof S-band Transmitter The model CHC29218-250/5650 class C power amplifier system operates over the 2025 to 2120 MHz NASA frequency band with 250 W (min) output power, and is circulator protected. The amplifier system is housed in two weatherproof NEMA enclosures (amplifier and power supply) for direct mounting...

Around the Circuit INDUSTRY NEWS Melissa Urann , assistant to the publisher of Microwave Journal, died June 17 after a long battle with cancer. She was 45 years old. Melissa was well known in the industry, having spent more than five years working on the business aspects of Microwave...

New Literature 1999 800/900 MHz Antenna Catalog This 28-page catalog features the company's latest specialized mobile radio; GSM; industrial, scientific and medical band; spread spectrum; and wireless data trunking antennas and accessories, including mobile trunking antennas with 3 dBd (5 dBi) gain; rooftop quarter-wave "Chrome-dome" and low profile silhouette...

Catalog Update Waveform Generator Catalog This four-page catalog (Catalog 10S) describes more than 400 ultra high speed and general-purpose pulse generators, laser diode drivers, impulse generators, monocycle generators, amplifiers, delay generators and accessories, including transformers, power splitters and scope probes. Avtech Electrosystems Ltd., Ottawa, Ontario, Canada (800) 265-6681 or...