Input impedance of infinite array of dipoles printed on protruding dielectric substrates

A full-wave method of analyzing infinite arrays of dipoles printed on finite-height protruding dielectric substrates is presented. The method uses the equivalence principle and a formulation for the Green´s function that permits currents parallel and perpendicular to the array face to be treated with equal ease. Computed results are in good agreement with measurements and anomalies such as scan blindnesses have been identified