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An optical photo lithography based 0.15μm GaAs PHEMT process and 2mil-substrate technology that enables high production throughput and low cost is described. The developed process achieved Imax=575mA/mm, BVgd=14V, and 753mW/mm of output power density at P-1 condition at 18GHz. Design and test results for DC to 85GHz traveling wave...

Satellites are regularly launched into Earth orbit to provide TV signals, communications services, geographic location services or to scan the planet for geological data. Some are sent to investigate neighboring planets, which just like those on timeless missions into remote corners of our solar system send data about their...

Radar signal generation and processing techniques are growing ever more advanced. These advances are being driven by the need to improve resolution (the ability to detect targets that are very close together) and reduce radar spectrum occupancy. Reducing spectral occupancy can serve two goals: reduce interference and minimize the...

Last month marked the conclusion of our 50th anniversary celebration. I hope that you enjoyed the special monthly features, including the “Then and Now” cover stories and Editor David Vye’s series titled “A Microwave Journey.” I would like to thank our esteemed authors who committed their time and expertise...

The Antenna Applications Symposium and its predecessor, the Air Force Antenna Symposium, have for more than 50 years provided a unique forum for exchange of ideas and information about the practical aspects of antenna design, development and use in systems. The Antenna Applications Symposium is held annually at the...

The US Air Force has awarded a risk reduction study contract to Northrop Grumman Corp. for the E-8C Joint Surveillance Target Attack Radar System (Joint STARS) Radar Modernization program. The study will be performed under Northrop Grumman’s existing Multi-Platform Radar Technology Insertion Radar (MP-RTIP) program. The $5.8 M study...

Raytheon Co. components played key roles in the destruction of a ballistic missile target during the latest flight test of the Missile Defense Agency’s Ground-based Midcourse Defense system. This was the eighth intercept for the GMD system. During the December 5 test, a Raytheon-built Exoatmospheric Kill Vehicle (EKV) intercepted...

Lockheed Martin has teamed with ITT Corp., Morgan Hill, CA, to compete for the US Navy’s Surface Electronic Warfare Improvement Program Block 2 Upgrade (SEWIP BLK2). This program will lay the groundwork for the upcoming competition for the Navy’s next-generation electronic warfare system. In at-sea demonstrations this summer, the...

Harris Corp., an international communications and information technology company, called for the adoption of software-defined, multiband, multimission radios as a principal solution for interoperable public safety communications among first responders. During a presentation titled “Enabling First-Responder Interoperability through Multiband, Software Defined Radios,” Kevin Kane, director of business development for...

The European Space Agency (ESA) and the UK government have signed an agreement in principle to develop an ESA research centre at the Harwell Science and Innovation Campus (HSIC) in Oxfordshire, UK. The aim is for the research centre to be up and running within a year. Keith Mason,...