Aperture Study of Partially Reflective Surface Antennas for Gain Enhancement

Partially reflective surface (PRS) resonant antennas have attracted much attention over the past two decades. However, the gain enhancement with them is limited. In this paper, the field distribution on the surface of PRS antennas is studied. It is demonstrated that the aperture sizes with PRS resonator antennas are limited by the resonant PRS height. The strategy to improve the gain performance of PRS antennas is proposed.