Antenna structure and wireless communication device using the same

A wireless communication device, comprising:

• a printed circuit board (PCB)
• an antenna structure located on the PCB, the antenna structure comprising:
• a feed portion;
• a first ground portion;
• a second ground portion;
• a first antenna, comprising a first radiator and a second radiator connected to the first radiator, and
• a second antenna, comprising a first radiation portion, a second radiation portion, a third radiation portion, and a fourth radiation portion, the first radiation portion, the second radiation portion, the third radiation portion, and the fourth radiation portion are connected in turn to substantially form a loop structure;
• wherein both of the first radiator and the second radiator are connected to the feed portion, the first radiator is parallel to the first radiation portion, the second radiator is parallel to the second radiation portion, the first radiation portion is connected to the first ground portion, and fourth radiation portion is connected to the second ground portion;
• wherein the third radiation portion comprises a first extending section, a second extending section, a third extending section a fourth extending section, a fifth extending section, and a sixth extending section, the first extending section is connected to the second radiating portion, the second extending section is perpendicularly connected to the first extending section, the third extending section is perpendicularly connected between the second extending section and the fourth extending section, the fourth extending section and the second extending section are positioned parallel to each other and extend along two opposite directions to define a first gap, the fifth extending section is perpendicularly connected between the fourth extending section and the sixth extending section, the sixth extending section and the fourth extending section are positioned parallel to each other and extend along two opposite directions to define a second gap.