Synthesis of antenna array sectoral patterns by element spacing perturbation

This paper describes a new method to synthesize sectoral patterns of nonuniformly spaced arrays. The technique proceeds by first obtaining the current distribution of /spl lambda//2 spaced array, and applies the developed inversion algorithm to obtain a new set of element spacings. The procedure is unique in that it gives an analytical expression for the appropriate array element positions, given the upper and lower bounds of the adjacent element spacing.