FDTD modeling of heatsink RF characteristics for EMC mitigation

Abstract

Due to their size and complex geometry, large heatsinks such as those used in the power electronics industry may enhance the radiated emissions produced by the circuits employing them. Such enhancement of the radio frequency (rf) radiation could cause the equipment to malfunction or to contravene current EMC regulations. In this paper, the electromagnetic resonant effects of heatsinks are examined using the finite-difference time-domain (FDTD) method and recommendations are made concerning the optimum geometry of heatsinks and the placement of components so as to mitigate potential EMC effects.

Metadata

Item Type:	Article
Authors/Creators:	Ryan, N.J. Chambers, B. Stone, D.A.
Copyright, Publisher and Additional Information:	Copyright © 2002 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Keywords:	FDTD, heatsinks, radio frequency
Dates:	Published: August 2002
Institution:	The University of Sheffield
Academic Units:	The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Electronic and Electrical Engineering (Sheffield)
Depositing User:	Sherpa Assistant
Date Deposited:	07 Dec 2005
Last Modified:	05 Jun 2014 05:38
Published Version:	http://dx.doi.org/10.1109/TEMC.2002.801759
Status:	Published
Refereed:	Yes
Identification Number:	10.1109/TEMC.2002.801759
Open Archives Initiative ID (OAI ID):	oai:eprints.whiterose.ac.uk:806

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FDTD modeling of heatsink RF characteristics for EMC mitigation

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