A method for charactering EMI coupling paths and source properties in complex systems

Sun Shishuang*, Feng Gang, Ding Chong, David J. Pommerenke, James L. Drewniak

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference paperpeer-review

Abstract

A method for charactering EMI coupling paths in complex systems is presented. While it is relatively easy to determine the EMI antenna structures or the sources of EMI, it is often quite difficult to identify, and even more difficult to quantify coupling paths. This paper introduces a measurement-based method to quantify EMI coupling paths, and the source strengths can be indirectly determined by applying linear system theory. Circuit design guidelines, e.g., the permissible even-mode current in a differential signal, can be derived with the knowledge of the coupling path and EMI limits. Moreover, the EMI can be better predicted with the knowledge of the coupling paths, and the EMI source properties simulated with IBIS or SPICE circuit level simulations.

Original languageEnglish
Title of host publication2006 IEEE International Symposium on Electromagnetic Compatibility, EMC 2006
Pages114-118
Number of pages5
Publication statusPublished - 1 Dec 2006
Externally publishedYes
Event2006 IEEE International Symposium on Electromagnetic Compatibility: EMC 2006 - Portland, United States
Duration: 14 Aug 200618 Aug 2006

Publication series

NameIEEE International Symposium on Electromagnetic Compatibility
Volume1
ISSN (Print)1077-4076

Conference

Conference2006 IEEE International Symposium on Electromagnetic Compatibility
Country/TerritoryUnited States
CityPortland
Period14/08/0618/08/06

Keywords

  • Common-mode current
  • Coupling path
  • EMI
  • Evenmode current
  • Transfer impedance

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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