Electromagnetics-based CAD and optimization of microwave circuits exploiting time-domain techniques

Summary form only given, as follows. We review work relevant to the area covered by the transmission line matrix (TLM) method, including historical TLM developments and design parameter sensitivity analysis for time-domain simulations. We consider TLM sensitivity analysis, compare it with the finite difference approach, and demonstrate its use in accelerating design optimization. We discuss ways of using space-mapping concepts for modeling and design that exploit the TLM time-domain EM simulator MEFiSTo as a fine model evaluator.