The method is especially useful for predicting array-blind scan angles that can occur under certain array beam steering conditions. Element scan impedance and embedded element radiation patterns can be computed, including all mutual coupling effects.
The cell contains periodic boundary conditions on the surrounding walls to mirror fields, creating an infinite number of elements. Infinite array modeling involves one or more antenna elements placed within a unit cell. Phased array antennas can be optimized for performance at the element, subarray or complete array level based on element match (passive or driven) far-field and near-field pattern behavior over any scan condition of interest. A candidate array design can examine input impedances of all elements under any beam scan condition.
