Mobile communications device with a compact-sized three-dimensional antenna

1. A communications device, comprising:

a circuit board;

a monopole antenna including a feed part electrically connected to the circuit board and directed away from the circuit board at an acute angle, a connecting part extending from the feed part in a direction substantially perpendicular to the circuit board, a first radiating part extending from the connecting part, and a second radiating part also directly extending from the connecting part, wherein the second radiating part includes a first strip substantially parallel to the first radiating part, and wherein the second radiating part further includes a second strip extending from the first strip toward the feed part.

2. The communications device as claimed in claim 1 , wherein the acute angle is about thirty degrees.

3. The communications device as claimed in claim 1 , wherein the first radiating part is about 1 mm from the first strip of the second radiating part.

4. The communications device as claimed in claim 1 , wherein the first radiating part is wider than the first strip of the second radiating part.

5. The communications device as claimed in claim 1 , wherein the first radiating part is about 2 mm in width.

6. The communications device as claimed in claim 1 , wherein the first strip of the second radiating part is about 0.8 mm in width.

7. The communications device as claimed in claim 1 , wherein the second strip of the second radiating part runs substantially parallel to the first radiating part.

8. The communications device as claimed in claim 1 , further comprising a mount with the monopole antenna affixed thereto.

9. The communications device as claimed in claim 8 , wherein the mount is made of plastic.

10. The communications device as claimed in claim 9 , wherein the monopole antenna is affixed to the mount by ultrasonic heat staking.

11. The communications device as claimed in claim 1 , wherein the monopole antenna is disposed at a bottom of the communications device.

12. The communications device as claimed in claim 1 , wherein the circuit board is about 6.8 mm from an edge of the circuit board.

13. The communications device as claimed in claim 1 , further comprising a screw affixing the feed part of the monopole antenna to the circuit board.

14. The communications device as claimed in claim 1 , wherein the monopole antenna is made of phosphor bronze.

15. A monopole antenna, comprising:

a feed part directed away from a plane at an acute angle;

a connecting part extending from the feed part in a direction substantially perpendicular to the plane;

a first radiating part extending from the connecting part; and

a second radiating part also directly extending from the connecting part; wherein the second radiating part includes a first strip substantially parallel to the first radiating part; and

wherein the second radiating part further includes a second strip extending from the first strip toward the feed part.

16. The monopole antenna as claimed in claim 15 , wherein the acute angle is about thirty degrees.

17. The monopole antenna as claimed in claim 15 , wherein the first radiating part is about 1 mm from the first strip of the second radiating part.

18. The monopole antenna as claimed in claim 15 , wherein the first radiating part is wider than the first strip of the second radiating part.

19. The monopole antenna as claimed in claim 15 , wherein the first radiating part is about 2 mm in width.

20. The monopole antenna as claimed in claim 15 , wherein the first strip of the second radiating part is about 0.8 mm in width.

21. The monopole antenna as claimed in claim 15 , wherein the second strip of the second radiating part runs substantially parallel to the first radiating part.

22. The monopole antenna as claimed in claim 15 , wherein the monopole antenna is made of phosphor bronze.