Formal Equivalence and Efficiency Comparison of the FD-TD, TLM and SN Methods in Application to Microwave CAD Programs

In this study, the Theorem of Equivalence of the FD-TD, TLM and SN methods in application to the analysis of microwave circuits is derived. Computer resources required by FD-TD, TLM and SN are thoroughly compared. The concepts of extended FD-TD and of mixed modelling are introduced.