Generalized spectral domain analysis of an infinite array of dielectric supported metal strip antennas

A flexible technique is developed, employing a generalised form of the spectral, periodic Green´s function. It is shown that this technique can handle sub-sectionally defined basis functions in the moment method solution, as well as 3D geometry in the array elements. The computational efficiency achieved by using the spectral approach coupled with a known convergence acceleration technique, is also demonstrated.