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A Multilayer Microstrip Patch Antenna Subarray Design Using CAD This article describes the design and development of an X-band, linearly polarized 4 × 4 element aperture-coupled microstrip patch antenna (ACMPA) subarray with a corporate feeding network. To reduce the design cycle time, commercially available CAD software packages are utilized...

Backside Connections Bill Oldfield Wiltron Co. Morgan Hill, CA The connector interface and its effect on calibration accuracy have been discussed previously. 1 This article focuses on the other side of the connector, the backside, where the connector interfaces with the circuit. It is this area where the design...

Integrated Radar Receiver Front Ends Part two of a two-part tutorial series on radar front-end components follows. Part one appeared in the January issue of Microwave Journal and discussed low noise amplifier (LNA) characteristics for radar front-end applications. This article takes a broader look at the radar receiver front...

Comparing Analog and Digital Techniques for Measuring Noise Power Ratio Generally, noise power ratio (NPR) measurement is accomplished with a diode-based noise generator as a stimulus and a spectrum analyzer for analysis. However, a digitally generated stimulus and vector signal analyzer deliver more repeatable results in less time. Roland...

Around the Circuit Peter Burian , CEO of Modular Components National Inc., died suddenly on September 16, 1996. He was 44. Burian was born in Nuremberg, Germany and raised in Bucks County, PA. Following graduation from Penn State University, Burian became a machinist and in 1981 cofounded Modular Components...

New Literature Defense/Aerospace Newsletter This newsletter, Analog Briefings, features updates on electromagnetic interference (EMI) filters, the worldwide qualified manufacturers list certification, the Quad-SHARC series multi-SHARC modules and new products in the RADTESTSM database. Analog Devices Inc., Wilmington, MA (617) 937-1428. Coaxial Cable Analyzer Data Sheet This coaxial cable analyzer...

News from Washington Tri-service Joint Exercise Tests Sea Ferret Missile A joint operational demonstration conducted by the US Navy’s Pacific Fleet submarine force demonstrated real-time linking of Northrop Grumman’s Sea Ferret missile with a nuclear attack submarine, Marine Corps reconnaissance forces and Army aviators. The exercise examined potential applications...

Rohde & Schwarz Launch TETRA Test System German contractor Rohde & Schwarz has launched a new test system designed to verify, quality assure and type approve trans-European trunked radio (TETRA) base and mobile stations. The TETRA standard (which incorporates the Technical Basis for Regulation (TBR) 35 document) is nearing...

Commercial Market US Electronics Factory Sales Rise 10 Percent through Third Quarter The Electronic Industries Association reports that US factory sales of electronics equipment and products reached nearly $296 B during the first nine months of 1996, an increase of 10 percent over 1995’s total of $269.4 B for...

The Book End The Mobile Communications Handbook Jerry D. Gibson CRC Press Inc. in cooperation with IEEE Press 577 pages; $79.95 This mobile communications handbook includes technologies ranging from cordless telephones, digital cellular radio and evolving personal communications systems to wireless data and networks. Various aspects of modulation, digital...