Aperture mutual coupling in a semi-infinite slotted array

Quadrature integration and series summation of the periodic Green´s function are used to efficiently compute the mutual admittance matrix for a planar phased array of thin slots with assumed cosinusoidal aperture electric field. The array is of infinite extent in the E-plane and is of finite extent in the H-plane. The H-plane excitation is arbitrary and the array is phase scanned in the E-plane. Resultant active aperture admittances and H-plane aperture distributions are calculated for uniform and 50 dB Chebyshev H-plane excitations.<>