Patent ID: 7773036

Claim:
An antenna structure comprising: a circuit board having a ground surface; and a printed antenna arranged on the circuit board comprising: a signal feed-in portion; a first radiating unit connected to the signal feed-in portion and having a first end and a second end, wherein the first radiating unit diverges and forms a first radiating element and a second radiating element at the first end, the first radiating element and the second radiating element are combined at the second end, and the first radiating element has a first turning portion; and a second radiating unit connected to the first radiating unit, and having a plurality of printed layers, a third radiating element, a fourth radiating element, a second turning portion and a third turning portion, wherein the second turning portion is located between the third radiating element and the second end, the third turning portion is located between the third radiating element and the fourth radiating element, and a distance is formed between the fourth radiating element and the ground surface.