Antenna structure and wireless communication device using the antenna structure

A wireless communication device, comprising:

• a circuit board having a first feed pin, a second feed pin, a third feed pin, a fourth feed pin, and a ground pin;
• and
• an antenna structure, comprising:
• a metal member, a gap defined on the metal member to divide the metal member into a first frame assembly and a second frame assembly, the first frame assembly and the second frame assembly cooperatively forming a receiving space;
• at least one electronic element;
• a first antenna electronically connected to the first feed pin;
• a second antenna electronically connected to the second feed pin and the ground pin;
• a third antenna electronically connected to the third feed pin;
• and
• a fourth antenna electronically connected to the fourth feed pin;
• wherein the group of electronic element, the first antenna, the second antenna, the third antenna, and the fourth antenna are received in the receiving space, the first antenna is electronically connected to the first frame assembly of the metal member, and the third antenna and the fourth antenna are both electronically connected to the second frame assembly of the metal member;
• wherein the first antenna comprises a first feed portion, a first radiating section, a second radiating section, a third radiating section, and a fourth radiating section;
• the first feed portion feeds current to the first antenna, the first radiating section has a first end perpendicularly connected to an end of the first feed portion closer to the first combining portion and a second end perpendicularly connected to the first end wall;
• the second radiating section is perpendicularly connected to an end of the first feed portion opposite to the first radiating section and is collinear with the first radiating section;
• the third radiating section is electronically connected to an end of the second radiating section away from the first radiating section and extends away from the sidewall parallel with the first end wall, the fourth radiating section is electronically connected to an end of the third radiating section away from the second radiating section and extends towards the first end wall parallel with the sidewall.