Sectoral H-plane SBFSS-SIW horn antenna

A sectoral H-plane SIW horn antenna based on Stop-Band Frequency Selective Surface Substrate Integrated Waveguide technology is presented. The FSS operating in Stop-Band that replace the original metal conductor plates of the horn, increase the versatility of these structures, by making the direct integration of biased active and passive devices on its surface possible. The return losses, the radiation patterns and the E-field distribution on the surface of the proposed antenna have been compared with those of its counterpart SIW horn, to demonstrated that the new antenna can be used in the same role as the SIW horn with the advantage of having electrically isolated pads from ground on its surface.