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Interference Technology

For EMI / EMC Engineers

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Shielding

Assemblies Provide EMI/RFI Protection for High-Powered Switching and Rugged Applications

 

Interconnect solutions provider Molex Inc. has released its new Woodhead MAX-LOC Plus Shielded Cord-Grip assemblies featuring a nickel-plated aluminum housing and shielding ring for EMI/RFI protection. According to the company, the assemblies enable original equipment manufacturers (OEMs) and end-users to connect high-power electrical currents directly to an application with … [Read more...]

Edge Guide Clip-On Strip Reduces Design Costs in PCB Grounding & Shielding Applications

 

EMC solutions provider Laird Technologies has announced the release of its new Fingerstock product, the Edge Guide Clip-On Strip. Available in custom lengths, the new product is designed to help reduce installation and labor costs in applications where PCBs need to be grounded and/or shielded. For example, says the company, a 10 cm or eight finger strip could reduce … [Read more...]

Electromagnetic Cloaking System Cancels Out Radio Waves

 

A new approach to invisibility cloaking from researchers at the University of Toronto, Canada has yielded an adaptable system capable of shielding objects of various sizes from radar detection. Developed by professor George Eleftheriades and Ph.D. student Michael Selvanayagam of The Edward S. Rogers Sr. Department of Electrical & Computer Engineering, the cloaking system … [Read more...]

Analysis on Shielding Effectiveness of Board Level Shielding with Apertures

 

Brian She Laird Technologies ABSTRACT There is a growing need to evaluate the shielding effectiveness (SE) of board level shielding (BLS). By means of a reverberation chamber, we performed a series of shielding effectiveness test for board level shielding products with different apertures. In addition, an analytical SE formulation has been developed in comparison with … [Read more...]

New EMI Cages Introduced as Part of Next-Gen Interconnect Solution

 

Interconnect solutions provider Molex Inc. has released its new series of EMI cages. Part of the Molex zQSFP+(TM) interconnect solution, which supports next-generation 100 Gbps Ethernet and 100 Gbps InfiniBand Enhanced Data Rate (EDR) applications, the cages are assembled with zQSFP+ SMT connectors and are offered in 1-by-4 ganged and 1-by-6 ganged. The company is showcasing … [Read more...]

New Techniques in Shielding for EMI

 

NOTE: This article has been translated from Spanish to English. It can be found in its original language in the 2014 Europe EMC Guide. Tim Fornes, Ph.D. Senior Staff Scientist, Chemical Research LORD Corporation Electromagnetic interference (EMI) is an unwanted disruption in the communication of an electrical device caused by foreign electromagnetic waves. Such foreign waves … [Read more...]

IEC 62153-4-3:2013: Metallic Communication Cable Test Methods – Part 4-3: EMC – Surface Transfer Impedance – Triaxial Method

 

From the International Electrotechnical Commission webstore: IEC 62153-4-3:2013(E) determines the screening effectiveness of a cable shield by applying a well-defined current and voltage to the screen of the cable and measuring the induced voltage in order to determine the surface transfer impedance. This test measures only the magnetic component of the transfer … [Read more...]

Spring Contacts for Shielding, Grounding and Electrical Connection Applications

 

Harwin, a manufacturer of electrical and electronic interconnect solutions, has expanded its range of EZ-Spring Contacts with new contact styles and heights. Part of the EZ-BoardWare range of PCB hardware products, the surface mount spring contacts—also known as spring fingers or grounding contacts—are now available in 15 different sizes, ranging from 1.70mm to 7.25mm free … [Read more...]

Canadian Air Force Helicopters Beset With EMI Woes

 

Electromagnetic interference concerns are hampering progress on a Canadian Air Force project. According to The Canadian Press, the Canadian government has refused to accept four CH-148 Cyclone test helicopters currently parked at the Canadian Forces facility in Shearwater, N.S., on the basis that they are "non-compliant." Designed by Sikorsky Aircraft Corporation, the … [Read more...]

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