Patent ID: 7639185
Filing Date: 2009-12-29
Classification: H01Q

Abstract:
1. An antenna, disposed on a circuit board comprising a first surface and a second surface opposite to the first surface, the antenna comprising: a feeding part for feeding electromagnetic signals, comprising a first feeding segment disposed on the first surface and a second feeding segment disposed on the second surface; a body portion for radiating and receiving electromagnetic signals, comprising a first radiation part, a second radiation part, a third radiation part, and a fourth radiation part, wherein the first radiation part and the second radiation part are disposed on the first surface, and electronically connected to the first feeding segment, the third radiation part and the fourth radiation part are disposed on the second surface, and electronically connected to the second feeding segment; a first accessory portion disposed on the first surface, and electronically connected to the first radiation part for enhancing coupling effect therebetween; a second accessory portion disposed on the first surface, and electronically connected to the second radiation part for enhancing coupling effect therebetween; and a ground plane for grounding, comprising a pair of first ground parts disposed on the first surface and a second ground part disposed on the second surface.