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Oh, the Way We Were! As Microwave Journal celebrates its 40th anniversary this year, we take a look at how things were (or how we remember them as having been) when it all started, way back then. Alexander E. Braun West Coast Correspondent It was a time of Pickett...

A New PCB Substrate Used for Patch Antenna Fabrication This article describes the modeling, fabrication and analysis of microstrip patch antennas. Extracting material parameters for a new PCB substrate as well as determining the suitability of this material for the fabrication of patch antennas are described. Microstrip test patterns...

Around the Circuit   John J. Powell , founder of Sun-Tech Marketing, died May 27 in Scottsdale, AZ. He was 59 years old. Powell held senior management positions at Microwave Associates, where he began his career, and at Omni-Spectra Inc. He will be sorely missed by his many friends...

New Literature Product Brochure This 36-page brochure details the company's products for use in cellular and personal communications service, broadcast, microwave, enhanced specialized mobile radio and military markets. HELIAX" coaxial cables, connectors, accessories, assemblies, training and services are described. Specifications and product photographs are provided. Andrew Corp., Orland Park,...

COMPONENTS GaAs IC Transfer Switch The model AS127-59 GaAs IC four-port transfer switch is designed to combine transmit/receive and antenna changeover switching capability in one device. The switch offers a reduction in size and weight because it operates without a duplexer. The unit offers high linearity, which reduces the...

HARDWARE EMI Spacer Gaskets These spacer gaskets are designed to provide electromagnetic interference (EMI) shielding and grounding in small electronic enclosures. The units feature the company's CHO-SEAL" 1310 series conductive elastomer molded to a thin plastic frame. The conductive elastomer provides a low impedance path between ground traces on...

MATERIALS RF Problem Solver Kit The C-RAM RF problem solver kit designed for engineering evaluation contains nine different C-RAM RF materials that can be used for solving RF signal leakage, device compatibility or cavity resonance problems. The kit is equipped with lossy carbon-loaded foam and magnetic silicone rubber-type absorbers...

ANTENNAS Flat-panel Antenna The model SSGP04-23 flat-panel antenna operates at the 2.3 to 2.5 GHz spread spectrum/industrial, scientific and medical (ISM) band, and measures 12" x 8" x 2", making the unit suitable for environmentally sensitive areas. The antenna is supplied with an adjustable mount. The mounting hardware allows...

AMPLIFIERS 10 Gbps Monolithic Limiting Amplifier The 10 Gbps model ALA90000 three-stage, DC-coupled, differential amplifier IC replaces a multistage discrete amplifier solution typically required after transimpedance or PIN amplifiers in OC-192/STM-64 receiver applications. The amplifier has a small-signal gain of 25 dB, input sensitivity of 7 mV (differential) and...

INTEGRATED CIRCUIT Floating-point DSP The model TMS320C6701 digital signal processor (DSP) is both pin- and code-compatible with the company's fixed-point model TMS320C62x DSP, creating a fixed- and floating-point universal platform architecture that enables 100 percent reuse of fixed-point code for faster time-to-market. The company's new mixed-signal data converter connects...