Anticipating Vehicle-Level EMI using a Multi-Step Approach

Geping Liu
David Pommerenke, Missouri University of Science and Technology
James L. Drewniak, Missouri University of Science and Technology
Chingchi Chen
R. W. Kautz

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A multi-step procedure for anticipating vehicle-level EMI is proposed in this paper. This approach uses multi-conductor transmission line (MTL) modeling to calculate current distributions along the cable bundle. A common-mode circuit is extracted from the MTL modeling, and is employed in full-vehicle full-wave modeling to determine radiation and interference. In this paper, mode-dispersion and mode-conversion phenomena are investigated, and the ambiguous definitions of the common-mode voltage and common-mode impedance are discussed.