A recent blog on Forbes.com discusses military jammers, which are designed to deny adversaries use of the electromagnetic spectrum, and how the Pentagon managed to make it to the end of the first decade in the new millennium still relying on the same airborne jamming pods introduced during the Vietnam War.Read more at Forbes.com.For more stories on military technology, visit … [Read more...]
Military
U.S. Navy Chooses Company for Electronic Warfare Project
Northrop Grumman has been chosen by the U.S. Navy to develop a suite of electronic warfare, information operations and line-of-sight communications on naval surface platforms. Part of the project will reduce the number of multiple topside apertures currently in use. The new system will increase communications bandwidth and help resolve electromagnetic … [Read more...]
Holding Steady
As the economy gained momentum in late 2009 and early 2010, engineering organizations, like every other business sector, sensed promise that a strong, self-sustaining recovery was kicking in. However, as government spending to stimulate the economy trailed off and businesses concentrated on rebuilding their inventories, the growth rated started to slow – a pattern that … [Read more...]
Differential Transfer Impedance of Shielded Twisted Pairs
Michel Mardiguian, EMC Consultant, Saint-Rémy-lès-Chevreuse, France The concept of Shield Transfer Impedance (Zt), introduced by S. Schelkunoff in 1934, is a very convenient parameter for the prediction and control of EMI coupling through cable shields. Although widely applied to coaxial cables against EMI susceptibility problems, the Zt parameter can be easily extended to … [Read more...]
EMC Performance of a Product Over Its Lifetime
Gert Gremmen, Tim Haynes, Ralph McDiarmid, Ed Price, John Woodgate EMC performance of a product is likely to vary with age as the physical characteristics change, e.g. caps dry out and metal junctions oxidize, etc. Obviously, the product is designed with the intention of consistent compliance over the life of the product, but are there any requirements or guidance relating to … [Read more...]
1.04m Rod, Antenna Factor and Received Level in MIL-STD 462/461E Compared to MIL-STD 461F Test Set Up
David A. Weston, EMC Consulting, Inc., Merrickville, Ontario, Canada INTRODUCTION This paper shows that the antenna factor of the receiving rod antenna and the E field incident on it, from a standard source of radiation, both change when the counterpoise of the rod is either isolated from the ground plane on the table (new MIL-STD-461F set up), or connected, as per … [Read more...]
TÜV SÜD America Expands EMC Testing Capabilities
TÜV SÜD America recently announced the addition of Electromagnetic Compatibility Testing in a 10-meter EMC chamber in Rancho Bernardo, Calif. The facility will expand TÜV SÜD’s ability to provide transmitter and other wireless communications testing for a wide variety of products with customers in IT, telecom, automotive, military, aerospace, medical electronics, lab … [Read more...]
Firm to Fill $2.85M Military Contract for Enclosures
Kratos Defense & Security Solutions recently announced that its Gichner Shelter Systems Business Unit in Dallastown, Pa., received a $2.85 million order from Raytheon Integrated Defense Systems for three additional Electronic Modular Enclosures which provide isolation for shock, vibration and electromagnetic interference isolation.Learn more from Defence Professionals. … [Read more...]
Military Aerospace Firm Offers Updates on EM Environment Simulator
Northrop Grumman Corporation recently held its fourth annual conference for users of its Combat Electromagnetic Environment Simulator (CEESIM) systems. The conference is aimed at keeping users updated on system developments while providing a forum to identify potential opportunities for improving system performance and customer service. Read more from Northrop Grumman. … [Read more...]
Companies Partner to Provide Cable Products for JSF Program
W. L. Gore & Associates, Inc., has entered into a strategic partnership with A. E. Petsche Company to provide GORE® FireWire® Cable Products for the Joint Strike Fighter (JSF) F-35 Lightning program, the Department of Defense’s next-generation strike aircraft system for the Navy, Air Force, and Marines. A. E. Petsche will manage the requirements of all program partners to … [Read more...]
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