Industry News

PROCESSING EQUIPMENT

PROCESSING EQUIPMENT Dicing Saw This high precision dicing saw utilizes software that displays all dicing parameters simultaneously in an organized fashion for convenient management. The software provides a graphics view of the chuck and wafer (size and location) to illustrate alignment locations and the proposed placement of cuts. New...
Read More

Catalog Update

Catalog Update   RF Component Catalog This 24-page catalog contains information on RF components, including amplifiers, attenuators, detectors, linearizers and switches, as well as the Ax Cascade computer-aided scientific amplifier design element. Specifications are listed. Outline drawings are provided. Amplifonix, Philadelphia, PA (215) 464-4000.   Duplexer and Bandpass Filter...
Read More

News From Washington

News From Washington Raytheon Awarded $54 M for Army Communications Programs Raytheon Electronic Systems has received a contract from the US Army Communications and Electronics Command (CECOM), Fort Monmouth, NJ, which is valued at $44 M. The contract provides for Raytheon's development, manufacture, installation and provision of logistics support...
Read More

International Report

International Report HOT BIRD 3 Scheduled for September Launch The European Television Satellite (EUTELSAT) provider's HOT BIRD 3 television (TV) broadcast satellite was scheduled to be launched in September aboard an Ariane rocket fired from Kourou, French Guyana. HOT BIRD 3 was developed by the Franco-British Matra Marconi Space...
Read More

Commercial Market

The Commercial Market First Global Personal Satellite Communications Service Introduced COMSAT Personal Communications has announced global coverage for its Planet 1SM personal communications service, which uses portable, notebook-sized satellite telephones to provide voice, fax and data communications worldwide. The service is carried over four International Maritime Satellite Organization (INMARSAT)-3...
Read More

The Bookend

The Book End  Wireless and Personal Communications Systems Vijay K. Garg and Joseph E. Wilkes Prentice Hall PTR 445 pages; $68 The emerging personal communications service (PCS) will enable users to transfer all forms of information economically between any desired location. This book describes the personal communications network (PCN)...
Read More

Versatile PCS/DCS Patch Antennas

The DirectLink series antennas that employ patch technology and MicroAir air dielectric technology in personal communications service (PCS) and digital communications system appliacations
Versatile PCS/DCS Patch Antennas Cushcraft Corp. Manchester, NH Today's personal communications service (PCS) and digital communications system (DCS) operators need to expand coverage and capacity while controlling infrastructure costs. The microcells, picocells and repeaters require a low cost, high performance antenna to provide concentrated coverage for PCS and DCS...
Read More

A Space Simulation Chamber with Thermal Ramping

A portable, cart-based space simulation thermal chamber that offers increased throughput and full automation
A Space Simulation Chamber with Thermal Ramping Environmental Stress Systems Inc. (ESS) Sonora, CA For many years there has been a requirement for microwave components used in aircraft, missiles and satellites to be screened environmentally for mission-critical functionality and latent defects affecting long-term reliability. Typically, these screens subject the...
Read More

A Vector Attenuator for Feedforward Amplifier and RF Predistortion Use

A vector attenuator that uses PIN diodes as the controlling elements to produce good intermodulation performance
A Vector Attenuator for Feedforward Amplifier and RF Predistortion Use Micro-Precision Technologies Inc. (MPT) Salem, NH Feedforward amplifiers and RF predistortion circuits used in cellular radio base stations require gain and phase adjustment in their cancellation loops. The classical approach to this requirement has been through the use of...
Read More

Multi-order Cancellation Technology

A multi-order cancellation technique that, when applied to microwave mixers, can improve their port-to-port isolation significantly
Multi-order Cancellation Technology This article describes a multi-order cancellation technique that, when applied to microwave mixers, can improve their port-to-port isolation significantly. Two different cancellation methods are discussed and test data are presented. Frank Xiaohui Li and Greg Corsetto Watkins-Johnson Co. Palo Alto, CA As wireless communication markets continue...
Read More
See More Videos