OPTIMIZATION OF APERTURE DISTRIBUTIONS FOR SUM PATTERNS

This paper presents a method of synthesizing sum patterns yielding ape rture distributions with minimal edge brightening. The method produces patterns in which the infinitely deep nulls are replaced by less deep nulls. This provides a multiplicity of solutions, some of which may b e easier to achieve physically than the conventional solution possessi ng deep nulls. The results in the cases of linear and planar array syn thesis show a significant improvement in the distributions, with a ver y small loss in directivity for the resulting pattern.