Patent ID: 8120535

Claim:
A multi-band antenna comprising: a grounding element extending along a longitudinal direction; a connection element extending from the grounding element essentially along an oblique direction with a free end region thereof so as to form a slot between the grounding element and the connection portion; a conductive portion extending from a first position of said free end region and defining a distal end zone thereof; a first radiation portion extending from the distal end zone of the conductive portion in a first direction along said longitudinal direction; a second radiation portion extending form the distal end zone of the conductive portion in a second direction opposite to the first direction; and a third radiation portion extending from a second position of the free end region; wherein a feeder cable including an inner conductor connected to the free end region, and an outer conductor connected to the grounding portion; wherein the third radiation portion is spaced from the conductive portion with a distance defined between said first position and said second position; wherein the grounding element and the connection element are located in a first plane, the conductive portion and the third radiation portion are located in a second plane perpendicular to said first plane, and the first radiation portion is located in the second plane while the second radiation portion is located in a third plane parallel to said first plane.