EM radiation from interconnected surface-microstrip line structures by a coaxial cable

Yoshiki Kayano, Hiroshi Inoue

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

    Abstract

    In recent years, effective methods for predicting and suppressing EMI over a broad band are required. In this paper, we focus on an equivalent circuit model for predicting EM radiation from a surface-microstrip line (S-MSL) structure with an interconnection coaxial cable. Firstly, frequency responses of common-mode (CM) current on the interconnection coaxial cable and EM radiation are studied experimentally and compared with FDTD modeling. It was demonstrated that the ground plane of the interconnected PCBs and the interconnection cable are the dominant radiation factor at low frequencies. Secondly, an equivalent circuit model for predicting CM current in the ground-connection model was proposed. The equivalent circuit model is based on consideration of concepts of CM antenna impedance to current- and voltage-driven mechanisms. Its validity was discussed by comparing FDTD simulation results. The good agreement between the predicted and measured results indicates the validity of the equivalent circuit model.

    Original languageEnglish
    Title of host publication2009 IEEE International Symposium on Electromagnetic Compatibility, EMC 2009
    Pages51-56
    Number of pages6
    DOIs
    Publication statusPublished - 2009 Dec 1
    Event2009 IEEE International Symposium on Electromagnetic Compatibility, EMC 2009 - Austin, TX, United States
    Duration: 2009 Aug 172009 Aug 21

    Publication series

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

    Other

    Other2009 IEEE International Symposium on Electromagnetic Compatibility, EMC 2009
    CountryUnited States
    CityAustin, TX
    Period09/8/1709/8/21

    ASJC Scopus subject areas

    • Condensed Matter Physics
    • Electrical and Electronic Engineering

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