RF & Microwave Industry News

Measurement of a Small Signal Near a Large Signal Using a Spectrum Analyzer

Factors to be considered to determine the measurement limitations of a small signal in the presence of a large signal
Measurement of a Small Signal Near a Large Signal Using a Spectrum Analyzer   Morris Engelson JMS Consulting Portland, OR A number of factors are involved in determining whether a small signal can be measured in the presence of a larger signal using a spectrum analyzer. The type of...
Read More

Improvement of a Cassegrain Antenna by Secondary Surface Corrections

A method to correct for the phase front distortions in the aperature field caused by the main mirror deformations in a large Cassegrain antenna
Technical Feature Improvement of a Cassegrain Antenna by Secondary Surface Corrections Juan Eusebio Garrido Arenas, Alberto Barcia Cancio and Jose Manuel Paez Please click here to view the pdf file of the Technical Feature...
Read More

Around the Circuit

Around the Circuit INDUSTRY NEWS William C. Brown , a pioneer in microwave power transmission whose contributions to the field included work on the Apollo lander that sent televised images from the moon to the earth, died of cancer February 3 at his home in Waltham, MA. He was...
Read More

New Literature

New Literature Surface-mount Device Catalog This eight-page catalog details surface-mount devices available in SOT-23, PZS, SMA and PLS packages, including zener, Schottky, switching and UHF diodes; bridge rectifiers; transistors; and junction FETS. Specifications and outline drawings are included. Electronic Devices Inc. (EDI), Yonkers, NY (914) 965-4400. Universal Power Meter...
Read More

Web Update

Web Update Ultra-precision Substrates This Web site provides technical specifications for a broad range of substrate materials produced with exact repeatability consistency. The company's new generation of MicroFine substrates, featuring unsurpassed uniformity, are described. The site also details available precision lapping, polishing, laser machining, diamond sawing and edge grinding...
Read More


COMPONENTS Current-controlled Variable Attenuators The models AV101-12 and AV102-12 current-controlled variable attenuators (from the company's HIP3™ series components) cover the 0.8 to 1 GHz and 1.7 to 2 GHz ranges, respectively, and are designed to meet the wide dynamic range required in spread spectrum wireless base station applications. The...
Read More


ANTENNAS Dual-band Magnetic-mount Antennas The DRM series dual-band magnetic-mount antennas are designed for the mobile antenna marketplace. The DRM 1800 cellular/PCS antenna operates in the 824 to 894 MHz and 1.85 to 1.99 GHz frequencies. The DRM 1900 GSM/DCS antenna operates in the 870 to 960 MHz and 1.71...
Read More


AMPLIFIERS 1.2 - 1.4 GHz Power Amplifier The model CHA6013 single-stage high power amplifier delivers 31 dBm of output power with 12 dB of small-signal gain over the 1.2 to 1.4 GHz frequency range. The unit is available in chip form or flatpack package. United Monolithic Semiconductor SAS (UMS),...
Read More


DEVICES Power GaAs MESFETS The models NE960R575 and NE960R275 power GaAs MESFETS operate from 4 to 18 GHz for use in amplifier and oscillator applications. Specifications include a P1dB power output of 27.5 and 25 dBm (typ), linear gain of 9 and 10 dB (typ) and power-added efficiency of...
Read More