Efficient analysis of finite antenna arrays using the Domain Green´s Function Method

A Method-of-Moments (MoM) based approach for solving finite antenna arrays is presented, viz. the Domain Green´s Function Method (DGFM). The DGFM is a perturbation approach where mutual coupling between array elements is accounted for during the formulation of the Green´s function for each element. The active current distribution on the entire array geometry is obtained by solving the localized problem of each element independently, leading to a significant saving in both run-time and memory usage. The method also takes into account the edge effects attributed to the finite size of the array, complex excitations with non-linear phase shift and is not limited to periodic array configurations.