Mobile terminal and antenna of mobile terminal

1. A mobile terminal, comprising:

a printed wiring board;

a housing;

a metal frame surrounding the housing, and having a first frame, a second frame and a third frame, wherein the first frame and the second frame are disposed on two opposite sides of the housing respectively, the third frame is disposed on a top side of the housing and is connected with the first frame and the second frame respectively, and the first frame has a first gap;

a first connector, having a first terminal connected with a part of the first frame between the first gap and the third frame and a second terminal;

a second connector, having a first terminal connected with the third frame and a second terminal connected with a ground of the printed wiring board; and

a first antenna, comprising:

a main radiator of the first antenna consisting of a part of the first frame and a part of the third frame connected between the first connector and the second connector;

a first part, having a first terminal connected with the second terminal of the first connector and a second terminal, and parallel with the first frame;

a second part, having a first terminal connected with the second terminal of the first part and a second terminal, and parallel with the third frame;

a first inductor, having a first terminal connected with the second terminal of the second part and a second terminal connected with the ground of the printed wiring board;

a third part, having a first terminal floated and a second terminal, and parallel with the second part, wherein the second part is disposed between the third part and the third frame;

a fourth part, having a first terminal connected with the second terminal of the third part and a second terminal, and parallel with the first part;

a second inductor, having a first terminal connected with the second terminal of the fourth part and a second terminal; and

a fifth part, having a first terminal connected with the second terminal of the second inductor and a second terminal connected with a first feed terminal of the printed wiring board, and parallel with the first part.

2. The mobile terminal of claim 1 wherein

the third frame has a first terminal and a second terminal;

the first frame has a first terminal connected with the first terminal of the third frame and a second terminal;

the second frame has a first terminal connected with the second terminal of the third frame and a second terminal.

3. The mobile terminal of claim 2 further comprising:

a third connector, having a first terminal connected with a part of the first frame between the first gap and the second terminal of the first frame and a second terminal connected with the ground of the printed wiring board.

4. The mobile terminal of claim 1 wherein there is a first predetermined distance between the second part and the third part to form a capacitive coupling feed.

5. The mobile terminal of claim 1 wherein the first antenna is a GPS antenna, a Bluetooth antenna, or a WLAN antenna.

6. The mobile terminal of claim 3 wherein the second frame has a second gap.

7. The mobile terminal of claim 6 further comprising:

a fourth connector, having a first terminal connected with a part of the second frame between the second gap and the third frame, and a second terminal;

a fifth connector, having a first terminal connected with the third frame and a second terminal connected with the ground of the printed wiring board; and

a second antenna, comprising:

a main radiator of the second antenna consisting of a part of the second frame and a part of the third frame connected between the fourth connector and the fifth connector;

a sixth part, having a first terminal connected with the second terminal of the fourth connector and a second terminal, and parallel with the second frame;

a seventh part, having a first terminal connected with the second terminal of the sixth part and a second terminal, and parallel with the third frame;

a third inductor, having a first terminal connected with the second terminal of the seventh part and a second terminal connected with the ground of the printed wiring board;

an eighth part, having a first terminal floated and a second terminal, and parallel with the seventh part, wherein the seventh part is disposed between the third frame and the eighth part;

a ninth part, having a first terminal connected with the second terminal of the eighth part and a second terminal, and parallel with the sixth part;

a fourth inductor, having a first terminal connected with the second terminal of the ninth part and a second terminal; and

a tenth part, having a first terminal connected with the second terminal of the fourth inductor and a second terminal connected with a second feed terminal of the printed wiring board, and parallel with the sixth part.

8. The mobile terminal of claim 7 further comprising:

a sixth connector, having a first terminal connected with a part of the second frame between the second gap and the second terminal of the second frame and a second terminal connected with the ground of the printed wiring board.

9. The mobile terminal of claim 6 wherein each of the first gap and the second gap is disposed at a position which has a second predetermined distance from the top side of the housing.

10. The mobile terminal of claim 7 wherein there is a first predetermined distance between the seventh part and the eighth part to form a capacitive coupling feed.

11. The mobile terminal of claim 7 wherein the second antenna is an LTE antenna.