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Fast Design Tuning of Linear Microstrip Antenna Array Apertures By Means Of Response Features

An approach to a rapid design closure of linear antenna array apertures at the electromagnetic (EM)-simulation level is proposed. We exploit an underlying array factor (AF) model corrected by means of characteristic points (angles and levels) of the radiation pattern of the EM model of the array aperture. The surrogate model constructed this way is iteratively updated and re-optimized within the trust-region framework. The algorithm is demonstrated using 12 and 24-element microstrip antenna arrays with the optimum designs obtained at the cost of a few EM simulations of the respective structures.