Patent ID: 8638261

Claim:
A multi-band antenna, comprising: a grounding element; a first antenna working on a wireless wide area network, and comprising a first conductive piece, a first radiating element extending from the first conductive piece, a coupling radiating element and a feeding line; a second antenna working on a wireless local area network, and comprising a second conductive piece, a first resonant element extending from the second conductive piece, a second resonant element and a feeding line; a third antenna operating on a wireless local area network, and comprising a third conductive piece, a first conductive arm extending from the third conductive piece and a second conductive arm and a feeding line; wherein said first conductive piece is connected to the second conductive piece; wherein said first conductive piece extends from the grounding element along a first direction, the coupling radiating element extends from an end of the first conductive piece along the first direction, the first radiating element extends from the first conductive piece and is apart from the coupling radiating element; wherein said first conductive piece of L shape and comprising a first side arm perpendicular to the grounding element, a second side arm extending from the first side arm and perpendicular to the first side arm and the grounding element, said coupling radiating element is connected to the first conductive piece on a first joint point.