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Industry News

The Design of A Dual Ultra-Wide Bandpass Filter Using L-Shaped Step Impedance Resonators

To inhibit interference from WLAN in UWB front-ends, it is required to provide an effective band-stop filter with 5 to 6 GHz rejection band. Several typical configurations for providing rejection bands such as defect ground structure (DGS) [1], photonic band gap (PBG) [2], split ring resonator (SRR) [3], and...
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DESIGN OF WAVEGUIDE BANDPASS FILTER IN THE X-FREQUENCY BAND

The design of passive microwave functions, and especially filters, is a study domain of the most important interest. Indeed, with the widespread applications of communication systems, the bandpass filter is an essential component. Thus, the quality of filter is extremely important. The development of bandpass filters has emphasized high...
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Now: Phased-array Radars: Past, Astounding Breakthroughs and Future Trends (January 2008)

Phased-array radars have seen ever increasingly wider use around the world over the last five decades. In recent years, they have seen breakthroughs that led to capabilities not possible in the past. This is exemplified by the development of GaAs integ...
Over the last five decades since the formation of the Microwave Journal, phased-array radars have seen remarkable advances and wide proliferation around the world. This is exemplified in Figures 1 , 2 and 3 , which give just a few examples of the phased arrays deployed over the last...
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Modernized GPS Built by Lockheed Martin Declared Operational

The modernized Global Positioning System Block IIR (GPS IIR-M) satellite launched from Cape Canaveral has been declared fully operational for military and civilian navigation users around the world, following a successful on-orbit checkout by a combined US Air Force (USAF)/Lockheed Martin team. The satellite, designated GPS IIR-17M, is the...
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Northrop Grumman to Provide US Army with Multiplexer Antenna Systems

Northrop Grumman Corp. has received a follow-on contract from the US Army Communications and Electronics Command to provide soldiers additional Frequency Hopping Multiplexers (FHMUX) antenna systems. The primary function of the FHMUX is to reduce the number of antennas while providing RF isolation between multiple frequency hopping radios. The...
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Harris Team Completes Weather and Radar Processor System Transition to FAA

Harris Corp. has completed the transition of the Federal Aviation Administration’s (FAA) weather radar data in the continental US to the FAA Telecommunications Infrastructure (FTI) network, enabling air traffic controllers to receive a much greater volume of weather radar information faster then ever before. The Weather and Radar Processor...
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Raytheon Successfully Tests New Air-launched Missile Defense System

Raytheon Co. has successfully flight-tested a key component of the Network Centric Airborne Defense Element (NCADE) missile-defense system with the intercept of a test ballistic missile. The test at White Sands Missile Range, NM, demonstrated the NCADE’s infrared seeker’s ability to acquire and track a ballistic missile target in...
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ASD President Offers European Vision

Addressing the French Senate Defence Commission, the President of the AeroSpace and Defence Industries Association of Europe (ASD), Åke Svensson, set out the industry’s vision for the future in terms of defence and security industrial activities in Europe. He underlined the aerospace and defence industry’s high content of cutting-edge...
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