Random Effects in Planar Arrays of Dipoles

A computer program for the analysis of random effects in planar arrays is described. The method of moments is applied iteratively in conjunc­ tion with a random sampling process, to obtain mean far field beam patterns and their expected variation. Block-Toeplitz impedance redundancies and the zeros of the excitation matrix are utilized in a special effi­ cient solution routine. Separate array analysis at fundamental and harmonic frequencies yields the ex­ pected ratio of harmonic to fundamental levels. The theory of the computer program is outlined and typical results are presented. Significant gain degradation is predicted at harmonic frequencies.