Patent ID: 6683574
Filing Date: 2004-01-27
Classification: H01Q

Abstract:
A twin monopole antenna, which is fed by a twin coplanar waveguide and is used in wireless communications, comprising:a substrate consisting of a first surface and a second surface, wherein the first surface is located on one side of the substrate and the second surface is located on the other side of the substrate; a ground plane comprising: a first ground plane located on the first surface of the substrate; and a second ground plane located on the second surface of the substrate, and the second ground plane is consisting of a third ground plane and an inverted-U shaped ground plane; a first radiating antenna located on the first surface of the substrate, and has a first width, wherein a first included angle is located between the first radiating antenna and the first ground plane; and a second radiating antenna located on the first surface of the substrate, and has a second width, wherein a second included angle is located between the second radiating antenna and the first ground plane, and an interval is located between the first radiating antenna and the second radiating antenna.