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Industry News

Small-sized Quasi-elliptic Function Microstrip Low Pass Filter Based on Defected Ground Structures and Open Stubs

In this article, a microstrip structure for a small-sized elliptic function low pass filter (LPF) is developed from a modified dumbbell-shaped defected ground structure (DGS) and additional open stubs. The steps taken in developing the structure are pr...
Young Bin Cho, Kye Suk Jun and Ihn S. Kim, Kyung Hee University; Byung Soo Kim, Shinsung College
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Defected ground structures (DGS) etched in the metallic ground plane of microstrip lines, also known as photonic bandgap (PBG) structures, are attractive to obtain unwanted frequency rejection and circuit size reduction. Research on the PBG was originally carried out in the optical regime 1,2 and has recently started with...
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Using Noise for RF Receiver Built-in Test Applications

Patrick Robbins, Micronetics Inc.
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Microwave thermal noise has long been employed for built-in test (BIT) of receivers and radiometers. Today’s compact solid-state noise sources are broadband and extremely stable making them very useful signal sources for a variety of tests. What is not commonly known is how many different types of BIT systems...
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New Products

Microwave Journal
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Manual Variable Attenuators This series of 2 W manual variable attenuators offers users a wide choice of attenuation ranges from 0 to 10 dB in 1 dB steps up to 0 to 110 dB in 1 dB steps. This series of attenuators covers a frequency range of DC to...
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Around the Circuit

Microwave Journal
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Industry News Elcoteq Network Corp. and Tellabs International announced that they have signed an agreement whereby Tellabs will outsource manufacturing of its international products and transfer ownership of its Espoo, Finland manufacturing operations to Elcoteq. The deal primarily involves manufacturing of Tellabs’ digital optical cross-connection products and broadband access...
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New Literature

Microwave Journal
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Service Brochure This brochure focuses on the company’s core technologies that include support in the design, development and fabrication of complex, ASICs and MMICs to meet specific design requirements. Areas of focus, design and manufacturing support, modeling, characterization and design services are also highlighted. ACCO USA Corp., Littleton, MA...
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Software Update

Microwave Journal
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Selector Tool This Web-based “inductor finder” makes quick work of finding and sorting all of the company’s products that fit a user’s requirements. Enter the inductance and operating frequency plus any other critical parameters like SRF, DCR, Q, mounting and dimensions. The program returns a detailed table of suitable...
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Raytheon Team Wins MILSATCOM Network Contract

Microwave Journal
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A Raytheon Co. team, which includes Boeing, General Dynamics and AT&T Government Solutions, has been competitively selected by the US Air Force’s MILSATCOM Joint Program Office (MJPO) for a requirement definition contract. Worth up to $9 M including options, the contract is an initial step toward transforming military communications....
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Rockwell Collins Selected for Production on Defense Advanced GPS Receivers

Microwave Journal
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Rockwell Collins, a leader in military Global Positioning System (GPS) solutions, has been selected by the GPS Joint Program Office for full-rate production and delivery of Defense Advanced GPS Receivers (DAGR) over the next eight years, commencing in November 2004. This contract is expected to yield approximately $238 to...
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Northrop Grumman Wins Air Force C4I Contract

Microwave Journal
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Northrop Grumman has been selected by the US Air Force to develop an infrastructure supporting the exchange of command, control, communications, computers and intelligence (C4I) information in a highly mobile, secure operating environment. The Information For Mobile Warrior (IFMW) program will result in an infrastructure that provides the Air...
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Lockheed Martin Demonstrates First Guided Missile Launch from B-1B

Microwave Journal
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A Lockheed Martin Joint Air-to-surface Standoff Missile (JASSM) was successfully launched from a B-1B bomber October 30, 2003, over China Lake, CA, making it the first conventional guided missile launch from a B-1B. The separation test vehicle demonstrated successful operation of JASSM during captive carry, launch from the B-1B’s...
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