Patent ID: 8390517

Claim:
A wireless signal antenna, comprising: a substrate including a first surface, a first edge, a second edge, and a third edge, wherein the first edge is opposite to the third edge and the second edge is adjacent to the first edge and the third edge; a grounding element disposed on the first surface; a metal radiator element disposed on the first surface, wherein the metal radiator element includes: a signal feed-in point for receiving an electrical signal; a first radiator unit disposed on the first surface, wherein the first radiator unit includes: a first radiator part, electrically connected to the signal feed-in point and extending toward and along the first edge of the substrate; a second radiator part, electrically connected to the first radiator part and extending along the second edge of the substrate; a third radiator part, electrically connected to the second radiator part and partially parallel to the first radiator part, wherein at least a part of the third radiator part extends toward or along the third edge of the substrate; a second radiator unit disposed on the first surface and extending from the signal feed-in point, wherein at least a part of the second radiator unit is disposed between the grounding element and the first radiator unit; a first semi-open area formed between the first radiator unit and the second radiator unit, wherein the first semi-open area is a space area surrounded by the first radiator part, the second radiator part, and the third radiator part; and a ground connection part having one end connected to the signal feed-in point and the other end connected to the grounding element, wherein an electrical signal excites the first radiator unit and the second radiator unit in a direct feed-in manner to generate a first frequency band mode and a second frequency band mode respectively.