Patent ID: 8730108

Claim:
A multi-band antenna, comprising: a base portion having a rear edge, a front edge parallel to the rear edge, and a first side edge and a second side edge respectively connected between the rear edge and the front edge, one side of the rear edge of the base portion extending rearward to form a ground portion with a ground point being defined thereon, a top of the base portion defining a feeding point; a substantially lying U-shaped first radiating portion of which one end is connected with a rear end of the first side edge of the base portion and the mouth faces to the first side edge of the base portion; a substantially lying L-shaped second radiating portion connected with a front end of the second side edge of the base portion with a free arm thereof extending rearward; and a third radiating portion tortuously extending downward from the front edge of the base portion, then extending transversely to be located substantially in front of the other arm of the second radiating portion, and further circuitously extending rearward to be located substantially near under the free arm of the second radiating portion, a distal end of the third radiating portion being located above a junction between a front and a rear of the third radiating portion and substantially apart in front of the other arm of the second radiating portion, wherein the other end of the first radiating portion is apart from the third radiating portion.