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Interference Technology

For EMI / EMC Engineers

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Shielding

The Square Shielded Magnetic Loop

 

Simple square wire loops may be well suited for injecting signals into circuit boards by inductive coupling. Douglas C. Smith, D.C. Smith Consultants, Los Gatos, CA CONSTRUCTION DETAILS Square magnetic loops are very useful troubleshooting tools. This article will describe the construction and characteristics of shielded magnetic loops and compare them to unshielded magnetic … [Read more...]

The IET’s Guide on EMC for Functional Safety

 

When correctly applied, real financial savings can be expected, along with a significant reduction in financial risks. Keith Armstrong, Cherry Clough Consultants, Stafford, UK Electronic complexity is increasing with no end in sight, increasing self-generated noise levels, while the feature sizes in silicon integrated circuits continue to shrink, making them emit more noise … [Read more...]

COTS Alternatives to MIL SPEC Flexible Conduit Systems for EMI/RFI Containment

 

Applications, electrical and physical performance, termination and installation factors of shielded flexible conduits. Linda Sardone, Zero Ground Electronic solutions for military and government equipment and installations are expanding rapidly, and the need for supplemental shielding of cable runs via conduit is moving beyond traditional applications requiring MIL SPEC … [Read more...]

Choosing the Right Chamber for Your Test Requirements

 

Martin Wiles, Vince Rodriguez, ETS-Lindgren Developments within standards community has led to new chamber validation procedures above 1 GHz and alternative test methods using FARs. INTRODUCTION Anechoic chambers are used today for performing EMC measurements according to a variety of published EMC standards. There are many different fields of application, including … [Read more...]

Surface Scan on IC Level with High Resolution

 

Measuring of near field above ICs or open DIEs with precisely positioned microprobes is a new tool for engineers to detect and solve EMI levels. Jörg Hacker, Langer EMV-Technik GmbH, Bannewitz, Germany ABSTRACT Today, engineers have less time to develop electronic circuits. The time to market is getting shorter and the requirements on the products are increasing. It means … [Read more...]

Proper EMI Suppression for Controlling Automotive Electronic Emissions

 

As technology advances, the need to place larger numbers of electrical and electronic systems into automobiles has dramatically increased, and although these systems may be small, it does not necessarily mean their electromagnetic emissions are, too. An article in Automotive DesignLine discusses the various electronic systems found on automobiles, and addresses the need of … [Read more...]

Spotlight on Carbon Nanotube Technology

 

Meaningful advancement and delivery of novel materials such as carbon nanotubes is critical to state-of-the-art global defense, transportation and energy, experts say. Carbon nanotube technology (CNT) sheet material allows for easy incorporation into many fixed-form and flexible structures as a lightweight shielding alternative to conventional solutions currently in use. … [Read more...]

Electronics Systems Protection Portfolio Eliminates EMI in Automobiles

 

As automakers continue to develop vehicles with significantly increased use of electronic controls, there is a growing need to ensure that the electrical/electronics architecture is protected against EMI, says Federal-Mogul Corporation in a news release announcing that the company has recently developed new EMI shielding products for automotive use.Learn more from Federal-Mogul … [Read more...]

New Web Application Lets Customers Create Modified PCB Shielding

 

Orbel’s Board Shield Wizard makes it quick and easy to design your own PCB shield. Visit the BLS section  atwww.orbel.comand select from a variety of surface mount or through-hole configurations. Then click on the Board Shield Wizard. The easy-to-use application lets you enter shield dimensions, mounting style, and material thickness. As specifications are entered, your custom … [Read more...]

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