Patent ID: 9431713
Filing Date: 2016-08-30
CPC Classification: H01Q

Claim Text:
1. A patch antenna comprising: a conductive ground plane layer; a conductive circular patch layer comprising a plurality of voids; a dielectric layer disposed between and contacting each of the ground plane layer and the circular patch layer; a grounding connection extending from the ground plane layer through the dielectric layer and contacting the circular patch layer at a grounding location of the circular patch layer; a RF feed extending through the ground plane layer and the dielectric layer and contacting the circular patch layer at an electrical feed location of the circular patch layer; and a tuning portion that extends along a portion of an outer periphery of the circular patch layer; wherein the electrical feed location is offset from a central axis of the circular patch layer; wherein the plurality of voids are disposed symmetrically about the grounding location; wherein a first axis extending through each of the plurality of voids and a second axis extending perpendicular to the first axis define four quadrants of the circular patch layer; wherein the tuning portion extends along an outer periphery of a first quadrant of the four quadrants; and wherein the RF feed location is disposed within a second quadrant of the four quadrants, the second quadrant opposite the second axis and adjacent the first quadrant.