Patent ID: 8390520

Claim:
A dual-patch antenna array, comprising: a plurality of dual-patch antennas, each dual-patch antenna comprising: a ground plane; a first patch plate parallel to and separated from the ground plane by a separation distance; a second patch plate separated from the ground plane by the separation distance, coplanar with the first patch plate, and separated from the first patch plate by a radiating slot; an excitation probe isolatedly passing through the ground plane and connecting to the first patch plate; a first wall connecting an edge of the first patch plate to the ground plane, the first wall located approximately ¼ wavelength of a mid-band operating frequency from the radiating slot; and a second wall connecting an edge of the second patch plate to the ground plane, the second wall located approximately ¼ wavelength of the mid-band operating frequency from the radiating slot, wherein the radiating slots are colinear.