Symmetrical partially coupled microstrip slot feed patch antenna element

摘要

Systems and methods which utilize a symmetrical partially coupled microstrip slot feed patch antenna element configuration to provide highly decoupled dual-polarized wideband patch antenna elements are shown. Embodiments provide a microstrip slot feed configuration in which a slot of a first signal feed is centered with respect to the patch and further provide a microstrip slot feed configuration in which slots of a second signal feed are symmetrically disposed with respect to the center of the patch and at positions near the edges of the patch. The microstrip feed utilized in communicating signals with respect to the slots of the second signal feed is adapted to provide signals of substantially equal amplitude and 180° out of phase with respect to each other according to embodiments. The second signal feed configuration utilized according to embodiments provides partial coupling between the patch and the second signal feed.

主权项

1. A patch antenna element comprising:
a conductive patch; and a first microstrip slot feed, wherein the first microstrip slot feed comprises at least one slot disposed in a ground plane and a corresponding strip line feed, and wherein the first microstrip slot feed is symmetrical with respect to a center of the conductive patch; and a second microstrip slot feed, wherein the second microstrip slot feed comprises a plurality of slots disposed in the ground plane and corresponding strip line feeds, wherein the second microstrip slot feed is symmetrical with respect to a center of the conductive patch and is symmetrical with respect to the first microstrip slot feed, wherein the second microstrip slot feed is partially coupled with respect to the conductive patch, wherein the plurality of slots of the second microstrip slot feed are disposed near edges of the conductive patch, and wherein the partial coupling of the second microstrip slot feed is provided by each of the plurality of slots of the second microstrip slot feed extending past one or more respective edge of the edges of the conductive patch and is 45′ offset with respect to an orientation of the conductive patch.