Design of a 45° linearly polarized M-PRS sectoral antenna

In this paper, a novel sectoral antenna for 45° linear polarization with a high improved isolation and low cross-polarizations using Metallic Partially Reflective Surface (M-PRS) is investigated. Double layers of M-PRS working on orthogonal polarizations as a superstrate are used for these cases. This antenna provides two perpendicular polarizations, vertical and horizontal, 45° with a sectoral radiation pattern in the azimuth plane. M-PRS antennas with sectoral pattern are usually designed only for vertical or horizontal polarization. In order to verify the results a Bipolar M-PRS Sectoral antenna prototype for WIMAX application [5.15–5.35] GHz is realized and measured. Finally, we study the possibility to generate 45° polarization.