Expanded space-mapping EM-based design framework exploiting preassigned parameters

Abstract—We present a novel design framework for microwave circuits. We calibrate coarse models (circuit based models) to align with fine models (full-wave electromagnetic simulations) by allowing some preassigned parameters (which are not used in optimization) to change in some components of the coarse model. Our expanded space-mapping design-framework (ESMDF) algorithm establishes a sparse mapping from optimizable to preassigned parameters. We illustrate our approach through two microstrip design examples. Index Terms—Design automation, electromagnetic (EM) optimization, microstrip filters, microwave circuits, optimization methods, preassigned parameters, space mapping. I.