Multi-band antenna

• US 20090195473A1
• Filed: 02/03/2009
• Published: 08/06/2009
• Est. Priority Date: 02/04/2008
• Status: Active Grant

• Current Assignee: Hon Hai Precision Industry Co., Ltd.
• Original Assignee: Hon Hai Precision Industry Co., Ltd.
• Inventors: Hung, Chen-Ta, Ku, Po-Kang, Ke, Yun-Lung
• Granted Patent: US 8,154,468 B2
• Time in Patent Office: Days
• US Class Current: 343/846
• CPC Class Codes: H01Q 1/2266 disposed inside the computer
• CPC Class Codes: H01Q 5/364 Creating multiple current paths
• CPC Class Codes: H01Q 9/42 with folded element, the folded parts being spaced apart a small fraction of the operating wavelength

Abstract

A multi-band antenna includes a grounding element located on a first planar, a connecting element, a first radiating portion, and a second radiating portion. The connecting element is substantially of L-shape configuration and located on the first planar. The first radiating portion, with a free end, extends from connecting element. The second radiating portion, with a free end, extends from the connecting element and is separated from the first radiating element. The free end of the first radiating portion and the free end of the second radiating portion extend in the same direction.

Claims

1. A multi-band antenna, comprising:

a grounding element, located on a first plane;

a connecting element, being substantially of L-shape configuration and located on the first planar;

a first radiating portion, with a free end and extending from connecting element; and

a second radiating portion, with a free end and extending from the connecting element and separated from the first radiating element;

said free end of the first radiating portion and the free end of the second radiating portion extending in the same direction.

2. The multi-band antenna as claimed in claim 1, wherein said grounding element comprises at least an aperture to form a hot-melt hole.

3. The multi-band antenna as claimed in claim 2, wherein said first radiating portion and said second radiating portion are substantially of L-shape configuration.

4. The multi-band antenna as claimed in claim 3, wherein said first radiating portion and said second radiating portion are located at a second planar.

5. The multi-band antenna as claimed in claim 4, wherein said second planar is perpendicular to the first planar.

6. The multi-band antenna as claimed in claim 1, wherein said first radiating portion comprises a vertical first radiating arm orthogonal connected to the connecting portion and a horizontal second radiating arm extending from the end of the first radiating arm.

7. The multi-band antenna as claimed in claim 6, wherein said second radiating portion comprises a third radiating arm upwardly extending from the connecting element in a direction perpendicular to the connecting element and a fourth radiating arm extending from the third radiating arm in a direction perpendicular to the third radiating arm.

8. The multi-band antenna as claimed in claim 7, wherein said second radiating arm is parallel to the fourth radiating arm

9. The multi-band antenna as claimed in claim 7, wherein said first radiating arm is parallel to the third radiating arm.

10. The multi-band antenna as claimed in claim 1, wherein said multi-band antenna comprises a feeding line, said feeding line comprises an inner conductor connected to the connecting element and an outer conductor connected to the grounding element.

11. The multi-band antenna as claimed in claim 10, wherein said joint of the second radiating portion and the connecting element is to form a feeding point, and the inner conductor of the feeding line is connected to said feeding point.

12. The multi-band antenna as claimed in claim 1, wherein said at least one radiating portion of the first and second radiating portions comprises at least one aperture to form a hot-malt hole.

13. A multi-band antenna comprising:

a grounding element;

a connecting element unitarily extending from the grounding element with therebetween a slot extending along a lengthwise direction;

a first L-like radiating portion unitarily extending from a first position of a longitudinal side edge of the connecting element;

a second L-like radiating portion unitarily extending from a second position of said longitudinal side edge spaced from the first position;

wherein

said second radiating portion is essentially disposed in a space defined between the first radiating portion and the longitudinal side edge.

14. The multi-band antenna as claimed in claim 13, wherein said first radiating portion and said second radiating portion essentially direct to a same direction.

15. The multi-band antenna as claimed in claim 13, wherein said first radiating portion and said second radiating portion are located in a first plane while said grounding element is located in a second plane different from said first plane.

16. The multi-band antenna as claimed in claim 13, wherein the slot is open to an exterior in said same direction.

17. The multi-band antenna as claimed in claim 13, further including a feeder cable having an inner conductor mechanically and electrically connected to the connecting element and an outer conductor mechanically and electrically connected to the grounding element.

18. The multi-band antenna as claimed in claim 13, wherein said longitudinal side edge is spaced from the slot.

19. A multi-band antenna comprising:

a grounding element;

a connecting element unitarily extending from the grounding element with therebetween a slot extending along a lengthwise direction;

a first radiating portion unitarily extending from a first position of a longitudinal section of the connecting element which extends along said lengthwise direction;

a second radiating portion unitarily extending from a second position of the connecting element different from the first position;

wherein

said first radiating portion and said second radiating portion extend toward a same direction;

wherein

the first radiating portion and the second radiating portion are located in a first plane which is different from a second plane in which said grounding element is located.

20. The multi-band antenna as claimed in claim 19, wherein said connecting element is located in the same plane.