Adaptive Design Specifications and Coarsely-Discretized EM Models for Rapid Optimization of Microwave Structures
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Adaptive Design Specifications and Coarsely-Discretized EM Models for Rapid Optimization of Microwave StructuresAbstract
A simple and efficient procedure for EM-simulation-driven design optimization of microwave devices is discussed. Our approach exploits recently introduced adaptively adjusted design specifications technique that shifts the optimization burden into a relaxed-accuracy and computationally cheap (low-fidelity) model of the structure under consideration, evaluated using the same EM solver as the original (high-fidelity) model but with coarse discretization. The unavoidable misalignment between the low- and high-fidelity models is accounted for by suitable adjustments of the design specifications. The presented method is simple to implement and allows rapid design improvement as demonstrated through examples.
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