Integrated analytical and numerical modeling for system level conducted/radiated immunity analysis

This paper presents a system-level modeling method by integrating analytical and numerical methods to analyze conducted and radiated electromagnetic immunity of electronic systems. Through extracting the intrinsic behavioural characteristics from cables, PCBA (board, traces, vias, connectors and components) and enclosure by using the semi-analytical method, one equivalent circuit model is built which is capable of simulating the transient/AC responses and crosstalk under conducted and/or radiated electromagnetic interference. A computer aided modelling system is developed to help industry engineers utilize the proposed methodology for their EMC design.