Journal
IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY
Volume -, Issue -, Pages -Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TEMC.2023.3313653
Keywords
Coated floating-ground multiconductor cables (FMCs); common-mode (CM) coupling; differential-mode (DM) coupling; field-to-wire coupling; transmission line (TL) theory
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This article develops a semianalytical model to characterize the terminal responses of coated floating-ground multiconductor cables (FMCs) under nonuniform electromagnetic field. The proposed method decomposes the field-to-wire coupling effects in coated FMCs into common-mode and differential-mode coupling and derives a combination model based on transmission line theory. The method is validated through application examples and shows good accuracy and computational efficiency compared with full-wave simulations.
This article develops a semianalytical model for characterizing the terminal responses of coated floating-ground multiconductor cables (FMCs) with arbitrarily routed wiring structures illuminated by a nonuniform electromagnetic field. In contrast to previous transmission line (TL) models, where only differential-mode (DM) coupling was considered, the proposed method decomposes the field-to-wire coupling effects in coated FMCs into common-mode (CM) coupling and DM coupling. First, for CM coupling, the coated FMCs are equivalent to a CM single conductor, and the CM current distribution along this conductor is obtained by full-wave simulations. Second, the equivalent coupled sources are decomposed into CM sources converted from the CM currents and DM sources induced by the electric and magnetic fields. The CM and DM sources are obtained separately by discretizing coated FMCs and sampling the incident electromagnetic field. Third, the combination model accounting for the comprehensive DM coupling is derived utilizing TL theory based on the equivalent coupled sources. The proposed method is validated through two application examples with good accuracy and higher computational efficiency compared with full-wave simulations.
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