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2013 EMC Directory & Design Guide

 

Every year, Interference Technology publishes the EMC Buyers’ Guide — our most up-to-date look at the providers of hundreds of EMC-related products and services. In this issue is a feature story about women in EMC, articles on testing and design, and a listings of products and services, company directories, calendar events and more! To read this issue, click here. … [Read more...]

Synchronous Buck Regulators with Integrated MOSFETS for Single- and Multi-Output Power Supplies

 

Semiconductor manufacturer Texas Instruments Inc. has announced the release of three 48V synchronous buck regulators with integrated MOSFETs for single- and multi-output power supplies in automotive and industrial applications. According to the company, the new 650mA LM25017, 300mA LM25018 and 100mA LM25019 fly-buck DC/DC converters “feature constant on-time (COT) control … [Read more...]

Interference Mitigation System for Antenna Remoting Applications

 

Pharad, a developer of small antenna and microwave photonic technologies, has announced the debut of an all-optical interference mitigation system at the 2013 OFC/NFOEC Exposition in Anaheim, Calif., in mid-March. According the company, the new interference mitigation system is the “first all-optical interference mitigation system that can be directly integrated with a fiber … [Read more...]

Composite Fabrics May Help Integrate Antennas Directly into the Walls of Naval Ships

 

Scientists at the University of Delaware’s Center for Composite Materials (CCM) are helping the U.S. Navy to realize the futuristic concept of integrating electromagnetic devices directly into the load-bearing structure of ships through the development of new advanced composite fabrics. However, according to Mark Mirotznik, an associate professor in the university’s … [Read more...]

Personnel Certification – What’s in it for Me?

 

I have recently heard, as part of some of my activity with the IEEE EMC Society (which really should be a lot more than it is (my activity, not the EMCs!), but that’s another story), questions about what iNARTE should do for us, as certified EMC Engineers. The gist of the question is: what is the overall benefit to the EMC Society and its members from iNARTE and having one … [Read more...]

Spread Spectrum Clock Generation – Theory and Debate

 

Kenneth Wyatt Wyatt Technical Services LLC   History of Spread Spectrum   Figure 1 – Actress, mathematician and inventor, Hedy Lamarr. Courtesy of http://www.hedylamarr.com During WW2, the U.S. Navy was having problems with radio-controlled torpedoes that were being jammed by high-strength RF signals tuned to the same frequency as the transmitting radio. In … [Read more...]

EMC – Grounding on Automation and Control Systems Applications to Eliminate Electromagnetic Interference in Industrial Plants

 

Author Roberto Menna Barreto QEMC - Engenharia, Qualidade e Compatibilidade Eletromagnética Ltda., Rio de Janeiro, Brazil menna@qemc.com.br   Summary The preservation of signals and equipment are generally characterized by the term Electromagnetic Compatibility (EMC), whose essence will translate in its own grounding system. The proper EMC improvement in the … [Read more...]

Special Feature: Women in EMC

 

By Belinda Stasiukiewicz Editor, Interference Technology Aspire. Advance. Achieve. This is the slogan of the Society of Women Engineers. The organization, founded more than 60 years ago, is one of the leaders in the push to increase female interest in engineering. The society hopes that its members, and all female engineers in general, will aspire to become successful … [Read more...]

The Equipotential Plane That Isn’t

 

The success of the multipoint ground (MPG) system requires having an extremely-very-low RF impedance grounding connection to an extremely-very-low RF impedance equipotential reference plane.  It also helps if the conducting materials are homogeneous and the bad things are kept separate from the good ones. Does that sound easy? You’re right – it’s not! A couple of posts … [Read more...]

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