Experimental model validation of mode-conversion sources introduced to modal equivalent circuit

Kota Sejima, Yoshitaka Toyota, Kengo Iokibe, Liuji R. Koga, Tetsushi Watanabe

Research output: Chapter in Book/Report/Conference proceedingConference contribution

21 Citations (Scopus)

Abstract

We have developed a modal-equivalent-circuit model with mode-conversion sources for clarifying the mode-conversion mechanism and considering countermeasures against common-mode noise by means of circuit analysis based on the proposed model. The modal equivalent circuit is divided into separate normal-mode and common-mode circuits obtained by applying the mode-decomposition technique to an actual circuit. The separate circuits are connected with the mode-conversion sources at the interface where two transmission lines with different current division factors (h) are connected. This model suggests that the mode conversion that occurs is likely related to the common-mode current and the normal-mode voltage at the interface and the difference in the current division factors (Δh). This paper validates the model experimentally. First, it is validated by changing the grounding conditions of a simple cable interconnection system. Next, the mode-conversion mechanism suggested by the mode-conversion sources is experimentally examined by matching on common mode and replacing a two-wire cable with a coaxial cable so that Δh becomes almost 0. Circuit simulation results obtained using the modal equivalent circuit with the mode-conversion sources agree well with measured results and this also demonstrates the model's validity.

Original languageEnglish
Title of host publicationEMC 2012 - 2012 IEEE International Symposium on Electromagnetic Compatibility, Final Program
Pages492-497
Number of pages6
DOIs
Publication statusPublished - Dec 12 2012
Event2012 IEEE International Symposium on Electromagnetic Compatibility, EMC 2012 - Pittsburgh, PA, United States
Duration: Aug 5 2012Aug 10 2012

Publication series

NameIEEE International Symposium on Electromagnetic Compatibility
ISSN (Print)1077-4076
ISSN (Electronic)2158-1118

Other

Other2012 IEEE International Symposium on Electromagnetic Compatibility, EMC 2012
CountryUnited States
CityPittsburgh, PA
Period8/5/128/10/12

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ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

Sejima, K., Toyota, Y., Iokibe, K., Koga, L. R., & Watanabe, T. (2012). Experimental model validation of mode-conversion sources introduced to modal equivalent circuit. In EMC 2012 - 2012 IEEE International Symposium on Electromagnetic Compatibility, Final Program (pp. 492-497). [6351682] (IEEE International Symposium on Electromagnetic Compatibility). https://doi.org/10.1109/ISEMC.2012.6351682