Patent ID: 7705785

Claim:
An antenna comprising: a ground plate having a top surface, a bottom surface and two opposite edges; a feed network being arranged above and spaced apart from the top surface of the ground plate by a first level; a plurality of metallic patches being arranged in pairs and electrically and integrally interconnected with the feed network and spaced apart from the top surface of the ground plate by a second level higher than the first level, each of the metallic patches having a body with an outer edge from which an inclined wing upwardly and outwardly extends toward one of the opposite edges of the ground plate; and a plurality of conductive fixing posts disposed below a part of the metallic patches and electronically connected between the part of the metallic patches and the ground plate; a plurality of insulated supporting posts disposed below the metallic patches for supporting the metallic patches; and a plurality of fastening elements securing the metallic patches onto the conductive fixing posts; the metallic patches and the feed network being integrally formed by bending a single piece of metal plate, and the metallic patches and the feed network are located at different levels relative to the top surface of the ground plate.