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Industry News

Spiral Antennas for Broadband Applications

Enhanced performance is needed from antennas, radomes and other microwave components to support ever-increasing functionality for military communications, electronic warfare (EW), electronic intelligence (ELINT), signal intelligence (SIGINT) and electromagnetic interference (EMI) measurement applications. There is a continuing demand for antennas with broader bandwidth and better controlled radiation patterns while...
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A Low Profile, L-band Mobile Tracking Antenna System

Micro-Ant Inc. is an innovative antenna design, development and manufacturing company whose engineers have extensive experience with reducing complex, sophisticated antenna systems to robust, low cost commercial, military, government and consumer products. The company recognizes the ever-growing need for new antennas to meet the changing requirements of the communication...
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Radar Today

Twenty years ago in Microwave Journal we wrote about “Radar in Transition.” The article opened with the statement that “radar engineers, at the end of 1984, find their field in transition between the conventional designs of the post World War II era and the digitally controlled, solid-state systems that...
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A Compact Thin-film WLAN Antenna Switching Module

Miniaturization and cost reduction along with ever expanding user functions are important features for modern consumer communication devices as customers demand more data throughput at low cost. System-on-chip (SoC) and system-in-package (SiP) have brought more and more circuits and functions together. For passive circuits, traditional multi-layer printed circuit boards...
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A Design Procedure for a Circular Polarized, Nearly Square Patch Antenna

This article describes the design of a compact, circular polarized (CP), nearly square patch antenna using an offset microstrip feed and operating at 2.45 GHz. The effect of the offset on the perturbation segment and the design of a simple matching net...
In order to obtain circular polarization, a dual feed can be used to excite a square patch to generate two fundamental modes, TM 10 and TM 01 , radiating at the same frequency. To meet the necessary conditions for circular polarization, the two modes must be equal in magnitude...
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A New Year, a New Look, the Same Mission

We start this New Year with several new features to Microwave Journal, and one long-standing mission.
I’ll begin with the changes, since you’ve probably noticed the most obvious of them already. Yes, the cover has a new look and a new direction. The cover graphic will now reflect the editorial theme for the issue, as illustrated in this month’s “Radar/Antennas” focus. Less obvious, but no...
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Around the Circuit

Industry News Teledyne Technologies Inc. and Celeritek Inc. jointly announced that Teledyne, through its subsidiary Teledyne Wireless Inc., has completed the acquisition of Celeritek’s defense electronics business for $33 M in cash. Celeritek’s shareholders approved the asset sale at the company’s annual meeting. Wireless Telecom Group Inc. (WTT) announced...
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FAA and Raytheon Agree to a $204 M Contract Modification to Provide Full LPV

The Federal Aviation Administration and Raytheon have completed negotiations on a contract modification for the Wide Area Augmentation System (WAAS) to deploy what is termed “Full Lateral Precision with Vertical Guidance (LPV) Performance.” This modification restructures existing contract scope and does not increase contract value. During the next four...
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