Antenna structure and wireless communication device using the same

A wireless communication device comprising:

• An antenna structure comprising:
• a housing, the housing comprising a metal frame, the metal frame defining a first gap and a second gap, the first gap and the second gap extending cross the metal frame;
• a radiating portion, existing in the metal frame between the first gap and the second gap;
• a ground point;
• a first coupling portion, existing in a portion of the metal frame extending from a side of the first gap away from the radiating portion;
• a second coupling portion, existing in a portion of the metal frame extending from a side of the second gap away from the radiating portion, the second coupling portion comprising a first end coupled to the ground point and a second end coupled to the ground portion;
• a feeding portion electrically connected to the radiating portion and supplying current to the radiation portion;
• ground point;
• wherein when the feeding portion supplies current, the current flows through the radiating portion, and the current is coupled to the first coupling portion through the first gap and the current is coupled to the second coupling portion through the second gap to activate first, second, and third operating modes to generate radiation signals in first, second, and third frequency bands;
• wherein when the feeding portion supplies current to the radiating portion, the first end of the second coupling portion and the second end of the second coupling portion to form a current loop.