Multi-Fidelity Optimization of Microwave Structures Using Low-Order Local Cauchy-Approximation Surrogates

Multi-fidelity microwave design optimization using low-order Cauchy-approximation surrogate models based on coarse-discretization EM simulations is discussed. A sequence of surrogate models is set up in small hyper-cubes containing the optimization path. This allows us to substantially limit the number of training points necessary to set up the surrogates when compared to setting a single model valid for the entire search space. Standard space …