New heterogeneous superstrate high gain antenna

This article presents a new way to enhance antenna gain using different dielectric superstrate configurations. The innovative assembly of superstrates permits also to the half-power beamwidth (HPBW) to be maintained with gain improvement. The chosen antenna is a printed square patch radiating at 5.1 GHz. The superstrate configuration can be applied to other antenna configurations, like horns or antenna arrays. By introducing the novel configuration, the gain improvement is 3 dB with the same horizontal HPBW. The superstrate volume is reduced up to 40%.