A novel integrated approach for simulation of electromagnetic susceptibility problem

摘要

This paper presents a systematic approach for electromagnetic susceptibility (EMS) analysis of high speed circuit with the presence of an electromagnetic interference. With numerical analysis, the effect of external electromagnetic noise on the interconnect is characterized and modeled as equivalent current source. At the same time, the macromodel of Internet subnetwork is constructed through vector fitting method. Then, the resultant macromodel and equivalent current source are ready to be synthesized into SPICE-compatible circuit simulator to efficiently expedite the transient analysis of the hybrid interconnects and lumped circuit elements with the external electromagnetic interference. Numerical example exhibits that this systematic approach is a computationally efficient method to solve the electromagnetic susceptibility problems, in which the external electromagnetic interference effects are fully considered.