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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...

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...

Multipath, shadowing and fading effects are major challenges in the reliable operation of terrestrial wireless communication channels. Signals from transmitter to receiver bounce from various objects and from the ground, and add in the receiver antenna in a way that can be destructive to signal strength and therefore to...

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...

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...

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...

Northrop Grumman has demonstrated technology for the Advanced Extremely High Frequency (EHF) payload that will greatly improve warfighters’ access to military satellite communications while increasing the range of missions the system can support on the ground, at sea and in the air. The company will provide the Advanced EHF...

Harris Corp. announced that it has been awarded a $275 M contract modification by the Federal Aviation Administration (FAA) to incorporate the agency’s Mission Support Services data function into the FAA Telecommunications Infrastructure (FTI) program, bringing the total estimated value of the program for Harris to $2.2 B by...

Under new European rules, Elcoteq Network Corp.’s board of directors is proposing that the company be converted into a European Company (Societas Europaea, SE). The move by the manufacturer of electronics for communications technology is in response to the Act on the European Company, which came into force in...

Motorola has announced that it has begun deployment of its CDMA2000 1X solution on a 2 GHz network for KDDI, a carrier for 3G cellular phone services in Japan. The new packet-based 2 GHz network will allow the carrier to leverage additional bandwidth while offering the opportunity to provide...