Chapter 15: Design of Linear Phased Array Apertures Using Response Correction and Surrogate-Assisted Optimization

In this chapter, we discuss and illustrate a simulation-driven surrogate-assisted approach to design of phase excitation tapers for linear phased array apertures. The design process is realized by a mean of surrogate-based optimization (SBO). SBO utilizes two surrogate models: a coarse-mesh surrogate of the array element for adjusting the array’s active reflection responses, and a fast surrogate of the radiation pattern which is a corrected array factor pattern. Iterative referencing to high-fidelity simulated responses allows us to conduct the design process with respect to the near-field interactions, e.g., coupling, and other undesirable wave phenomena within the aperture. At the same time, the design process is made fast due to the utilized SBO technique…