Recent Advances in Space-Mapping-Based Multiphysics Optimization for Microwave Filters

Multiphysics-based optimization is a useful technique for high performance microwave design. An overview for recent advancements in multiphysics design using space mapping (SM) techniques is provided in this paper. We develop a surrogate model including two mapping modules and an EM coarse model using SM. This technique provide a effective and larger update for every iteration by utilizing the information of the coarse model represented using inexpensive EM domain samples, resulting in optimal solutions being obtained more efficient than the existing methods. A high power microwave filter is used to illustrate this technique.