EMI resulting from interconnected printed circuit boards by a coaxial cable

Yoshiki Kayano, Hiroshi Inoue

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

    Abstract

    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.

    Original languageEnglish
    Title of host publicationIEEE International Symposium on Electromagnetic Compatibility, EMC 2007
    DOIs
    Publication statusPublished - 2007 Dec 1
    EventIEEE International Symposium on Electromagnetic Compatibility, EMC 2007 - Honolulu, HI, United States
    Duration: 2007 Jul 92007 Jul 13

    Publication series

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

    Conference

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

    ASJC Scopus subject areas

    • Condensed Matter Physics
    • Electrical and Electronic Engineering

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