US Patent 7800542 Multi-layer offset patch antenna

A patch antenna includes a first patch element and a second patch element. Each patch element defines a center. The second patch element is spaced below the first patch element. A connection point is defined on the second patch element for connection to a transmission line. A first plane is defined through the connection point and the center of the second patch element and generally perpendicular to the second patch element. The first patch element is disposed offset the second patch element such that the center of the first patch element does not intersect with the first plane.