RF & Microwave Industry News

Circuit Modeling of Spurline and Its Applications to Microstrip Bandstop Filters

Simple bandstop filters (BSF) are introduced in this article. The filters consist of one spurline and a pair of cross-junction open stubs. This spurline exhibits bandstop characteristics at a resonant frequency, which can be explained and modeled by on...
Bandstop filters (BSF) play an important role in rejecting higher harmonics and spurious responses for microwave and millimeter-wave applications. The conventional method to implement bandstop filters involves the use of shunt stubs or stepped-impedance microstrip lines with large circuit size. 1 To reduce the filter area, certain slow-wave structures,...
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RF and Microwaves in Asia: Technological and Economic Diversity

Asia’s prominence and influence in the global marketplace continues to grow. This article considers the role that RF and microwave technology plays, its development and global impact.
In the commercial and technological arena, Asia is the continent that elicits strong opinions and provokes debate. Is it an all-consuming predator with an insatiable appetite, sustained by low-cost mass production, intent on devouring the lion’s share of the market? Or is it the goose that will lay and...
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Mercury Computer Systems Selected by Raytheon

Mercury Computer Systems Inc. announced that it was selected by Raytheon to provide the wideband modem subsystem platform as part of Raytheon’s recent HDR-RF Ground Modem contract from the US Air Force. Raytheon worked with Mercury Computer Systems to leverage the benefits of commercial off-the-shelf (COTS) software radio processing...
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TRAK Selected Supplier for Raytheon

TRAK Microwave Corp. announced that it has been awarded a contract from Raytheon Integrated Defense Systems (IDS), Andover, MA, to supply several critical components for the DDG 1000 Zumwalt Program. The DDG 1000 is the lead ship of a class of next-generation multi-mission surface combatants tailored for land attack...
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MI Technologies Receives $9.9 M Contract

MI Technologies announced it has received a $9.9 M contract from Lockheed Martin MS2’s Radar Systems business to design and build a radar test and measurement system in support of the Medium Extended Air Defense System (MEADS). MEADS is a mobile air and missile defense system designed to replace...
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Mobile Fading Simulation

When communication systems are established engineers must account for numerous real world effects and maintain reliable communication systems. Information such as path loss from the transmitter to the receiver, immunity to interference (calculating and testing the effects of non-intended signals on the intended communications signal or effects of a...
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