Stable and Accurate Marching-on-in-Time Solvers of Time Domain EFIE, MFIE, and CFIE Based on Quasi-Exact Integration Technique

The development of time-domain integral equation solvers with robust late-time stability properties has been a long-standing quest. Among the many methods that have investigated, those leveraging quasi-exact integration techniques appear to be most successful. This article presents stable and accurate marching-on-in-time (MOT) for electric, magnetic, combined field equations (EFIE, MFIE, CFIE) based on techniques. novel MOT exhibit excellent while yielding highly results, as demonstrated by various numerical examples. In addition, solvers' accuracy are used examine spurious modes encountered when applied closed surfaces. It is solutions time domain EFIE MFIE often polluted at cavity's resonant frequencies whereas CFIE solver devoid such contamination.