Patent ID: 7538729

Claim:
A coupling antenna comprising: a ground plane having a top surface; a main radiating assembly mounted on the ground plane and having a substrate mounted on the top surface of the ground plane and having a top surface and a side edge; a feeding-and-coupling assembly mounted on the surface of the substrate and having a feeding member mounted on the substrate and having a connecting end and a feeding end; a coupling member mounted on the substrate, connected to the connecting end of the feeding member and having a body section formed on and protruding from the connecting end of the feeding member; a first coupling element formed on and protruding from the body section; a second coupling element mounted on the substrate, corresponding to and separated from the first coupling element; and a gap defined between the first and second coupling elements; and an extension member mounted on the substrate and connected to first coupling element of the coupling member; and a shorting member mounted on the substrate and connected to the ground plane; and a secondary radiating assembly mounted on the substrate, connected to the coupling member of the main radiating assembly and having a first radiating patch mounted on the substrate and connected to the second coupling element of the coupling member and the shorting member; and a second radiating patch mounted on the substrate and connected to the first radiating patch and the shorting member.