Patent ID: 7679564

Claim:
A multi-band antenna, comprising: a radiation element; a grounding element, located at one side of the radiation element; a conductive pin, comprising: a first branch arm, having a first end coupled to the radiation element; a second branch arm, isolated from the first branch arm, and having a second end coupled to the grounding element; and a third branch arm, having a first end coupled to a second end of the first branch arm, and the second end of the third branch arm being coupled to a first end of the second branch arm, wherein the third branch arm of the conductive pin is vertical to the first branch arm and the second branch arm of the conductive pin, and the first branch arm of the conductive pin is parallel to the second branch arm of the conductive pin; and a signal wire coupled to the conductive pin, for receiving and transmitting signals; wherein the radiation element is equally divided into a plurality of predetermined lengths having the same length, and is subject to a fractal evolution within the predetermined lengths.