Interaction of a Gaussian beam wave with an array of slit-coupled cylindrical-impedance screens

Abstract

The interaction of a Gaussian beam wave with an array of slit-coupled cylindrical-impedance screens is investigated using the direct integral-equation technique, and the induced currents on impedance screens are expanded in terms of a series of Chebyshev polynomials of the first kind. Furthermore, the far-zone scattered-field solutions to such a multiple-coupling array are obtained in an analytical form. Then, numerical results are presented to show the far-zone scattered-field distributions of some finite array.