Small Antenna Design Using Surrogate-Based Optimization

In this work, design of small antennas using efficient numerical optimization is investigated. We exploit variable-fidelity electromagnetic (EM) simulations and the adaptively adjusted design specifications (AADS) technique. Combination of these methods allows us to simultaneously adjust multiple geometry parameters of the antenna structure of interest in a computationally feasible manner, leading to substantial reduction of the antenna size while maintaining acceptable reflection level. Our approach is demonstrated using a UWB monopole.