EMI resulting from interconnected printed circuit boards by a coaxial cable

Yoshiki Kayano, Hiroshi Inoue

    研究成果: Conference contribution

    抄録

    To provide basic considerations for the realization of methods for predicting the electromagnetic (EM) radiation from interconnected printed circuit boards (PCBs) by a coaxial cable, the characteristics of the EM interference of test model PCB are investigated in this paper by experiment and numerical modeling. Comparing the cases with and without the interconnection, the ground plane of the interconnected PCBs and the interconnection cable are dominant radiation factor in the lower frequencies. These factors construct large common-mode (CM) antenna. On the other hand, the total EM radiation at GHz frequencies is simply determined by the differential-mode (DM) current on the signal trace, and cross-talk current on the victim traces. Consequently, correct predictions of CM current at lower frequencies and cross-talk are keys to the prediction of the total EMI behavior of the interconnected PCBs, because the DM current on the signal trace can be predicted by transmission line theory.

    本文言語English
    ホスト出版物のタイトルIEEE International Symposium on Electromagnetic Compatibility, EMC 2007
    DOI
    出版ステータスPublished - 2007 12月 1
    イベントIEEE International Symposium on Electromagnetic Compatibility, EMC 2007 - Honolulu, HI, United States
    継続期間: 2007 7月 92007 7月 13

    出版物シリーズ

    名前IEEE International Symposium on Electromagnetic Compatibility
    ISSN(印刷版)1077-4076

    Conference

    ConferenceIEEE International Symposium on Electromagnetic Compatibility, EMC 2007
    国/地域United States
    CityHonolulu, HI
    Period07/7/907/7/13

    ASJC Scopus subject areas

    • 凝縮系物理学
    • 電子工学および電気工学

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