Antenna structure and wireless communication device using same

A wireless communication device, comprising:

• an antenna structure, the antenna structure comprising:
• a metallic member, the metallic member comprising a front frame, a backboard, and a side frame, the side frame being between the front frame and the backboard;
• a feed portion;
• a radiating portion;
• and
• a second matching circuit comprising a switch and a plurality of fourth inductors;
• wherein the side frame defines a slot;
• wherein the front frame defines a first gap, a second gap, and a fourth gap, the first gap and the second gap are between two opposite ends of the slot, the fourth gap is on an end of the slot;
• the first gap, the second gap, and the fourth gap communicate with the slot and extend across the front frame;
• and
• wherein a portion of the front frame between the first gap and the second gap forms a first radiating section, another portion of the front frame between the second gap and the fourth gap forms a third radiating section;
• the radiating portion crosses the second gap and connects to the first radiating section and the third radiating section;
• the feed portion electrically connects to the first radiating section;
• an end of the second matching circuit electrically connects to the radiating portion, the other end of the second matching circuit connects to a ground.