Transfer network models for EMI coupling paths characterization of multiconductor cables

摘要

This paper focuses on the CE propagation paths modelling when an electrically-long power cable embedded in a multiconductor system. By adopting the distributed parameter circuit model of the interconnect cable, analytical expressions of the CE at any load port are derived based on the EMI source and propagation paths models. The analysis is deduced by the modal decomposition of the EMI signals. The Source-to-Load matrix transfer functions are obtained to evaluate the EMI propagation properties as functions of the frequencies and the power cable characteristics. Experimental results are also given to support the theoretical analysis.