Patch antenna and method of making the same

Abstract

A patch antenna includes: a dielectric layer made of an insulation material, and having upper and lower surfaces, and a through hole; a radiation metal layer disposed on the upper surface of the dielectric layer, and having a first plate body, a first aperture aligned with the through hole, and a first protruding portion extending from a peripheral edge of the first aperture into the through hole; and a grounding metal layer disposed on the lower surface of the dielectric layer, and having a second plate body, a second aperture aligned with the through hole, and a second protruding portion extending from a peripheral edge of the second aperture into the through hole. The first and second protruding portions contact each other in the through hole so that the radiation and grounding metal layers are electrically connected. A method of making a patch antenna is also disclosed.

Dependencies are inferred from the claim text.