Fast Antenna Optimization Using Gradient Monitoring and Variable-Fidelity EM Models
Keywords:antenna optimization, EM-driven design, trustregion framework, variable-fidelity EM simulations
Accelerated simulation-driven design optimization of antenna structures is proposed. Variable-fidelity electromagnetic (EM) analysis is used as well as the trust-region framework with limited sensitivity updates. The latter are controlled by monitoring the changes of the antenna response gradients. Our methodology is verified using three compact wideband antennas. Comprehensive benchmarking demonstrates its superiority over both conventional and surrogate-assisted algorithms.
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