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A Planar End-Firing Antenna Through a Resonating Rectangle Patch

A planar end-firing antenna through a simply resonant rectangle patch is presented in this letter. The proposed antenna consists of a couple of dipoles, a rectangle patch, and a director. The simple resonant rectangle patch is covered with two patches in both upper side and bottom side, which is used to replace the balun of the conventional end-fire antenna. The experimental results show that the proposed antenna resonates at 5.8 GHz. The end-firing directional radiation patterns are achieved through the couple of dipoles in an odd mode. The front-to-back ratio of the proposed antenna is more than 16 dB.