Patent ID: 7525490

Claim:
A multi-band antenna adapted for used in a portable electronic device, comprising: a first antenna, comprising a first radiating element which comprises a first radiating arm, a second radiating arm extending from one end of the first radiating arm, a third radiating arm being coplanar with and locating at different beeline with the second radiating arm, and a fourth radiating arm connecting the second radiating arm to the third radiating arm, a second radiating element which comprises a common first radiating arm sharing with the first radiating element and a fifth radiating arm extending from one end of the first radiating arm and locating common beeline with the second radiating arm extending along a opposition direction, a common grounding element, and a first connecting element connecting the first radiating element and the common grounding element, said first radiating element of the first antenna form an L-shape locating in a plane, the first radiating portion of the second antenna form an L-shape locating in a different plane. a second antenna, comprising a first radiating portion, the common grounding element sharing with the first antenna, and a second connecting element connecting the radiating portion and the grounding element; wherein two free end portions of the first radiating element and the first radiating portion are not arranged in a line, said free end portion of the first radiating element locates at the terminal of the first radiating element, said free end portion of the first radiating portion locates at the terminal of the first radiating portion, said third radiating arm is the free end portion of the first radiating element.