Antenna apparatus and feeding structure thereof

• US 9,660,332 B2
• Filed: 05/21/2014
• Issued: 05/23/2017
• Est. Priority Date: 05/23/2013
• Status: Active Grant

• Current Assignee: LG Innotek Company Limited (LG Corporation)
• Original Assignee: LG Innotek Company Limited (LG Corporation)
• Inventors: Kim, Do Gyun, Kim, Chang Wook
• Primary Examiner(s): Duong, Dieu H
• Application Number:
  US14/283,965
• Publication Number:
  US 20140347241A1
• Time in Patent Office: 1,098 Days
• Field of Search: 343700 MS, 343702, 343845
• CPC Class Codes: H01Q 1/243 with built-in antennas
• CPC Class Codes: H01Q 1/48 Earthing means; Earth screens; Counterpoises
• CPC Class Codes: H01Q 5/35 using two or more simultaneously fed points
• 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

Disclosed are an antenna apparatus and a feeding structure thereof. The feeding structure includes at least one feeding unit; at least one ground unit connected to the feeding unit; and a ground member connected to the ground unit, and the antenna apparatus includes the feeding structure. Thus, a plurality of signal transferring paths is formed in the antenna apparatus so that the operation efficiency of the antenna apparatus is improved.

Claims

1. A feeding structure (340) comprising:

a first feeding unit (341);

a second feeding unit (341);

a feeding point (342);

a first ground unit (348);

a second ground unit (348); and

a ground member (320) including a first ground point and a second ground point;

wherein one end of the feeding point (342) is connected to one end of the first feeding unit (341) and one end of the second feeding unit (341),

wherein the other end of the feeding point (342) is connected to the first ground point and the second ground point of the ground member (320),

wherein the feeding structure includes a connecting line,

wherein one end of the connecting line is connected to the other end of the first feeding unit (341) and the other end of the second feeding unit (341),

wherein the other end of the connecting line is connected to one end of the first feeding unit (341) and one end of the second feeding unit (341),

wherein the other end of the first ground unit (348) is connected to the first ground point,

wherein the other end of the second ground unit (348) is connected to the second ground point,

wherein the feeding point (342) generates a signal,

wherein the signal is supplied to the ground member (320) through a first path and a second path;

wherein the first path includes the first feeding unit (341), the connecting line, and the first feeding point (347);

wherein the second path includes the second feeding unit (341), the connecting line, and the second feeding point (347);

wherein the ground member (320) radiates the signal at a resonance frequency, and

wherein a band of the resonance frequency is 2.30 GHz to 2.60 GHz.

2. The feeding structure of claim 1, comprising a plurality of ground units.

3. The feeding structure of claim 2, wherein the ground units have mutually different lengths.

4. The feeding structure of claim 2, wherein the ground units have mutually different shapes.

5. The feeding structure of claim 2, wherein the ground units diverge from each other.

6. The feeding structure of claim 1, comprising a plurality of feeding units.

7. The feeding structure of claim 6, wherein the feeding units extend from the feeding point and diverge from each other.

8. The feeding structure of claim 6, wherein the feeding units have mutually different lengths.

9. The feeding structure of claim 6, wherein the feeding units have mutually different shapes.

10. The feeding structure of claim 1, wherein the ground member radiates a signal supplied from the feeding unit.

11. An antenna apparatus (300) comprising:

a feeding structure (340); and

a radiator (330) to radiate a signal supplied from the feeding structure (340), wherein the feeding structure (340) comprises;

a first feeding unit (341);

a second feeding unit (341);

a feeding point (342);

a first ground unit (348);

a second ground unit (348);

a connecting line; and

a ground member (320) including a first ground point and a second ground point;

wherein one end of the feeding point (342) is connected to one end of the first feeding unit (341) and one end of the second feeding unit (341), wherein the other end of the feeding point (342) is connected to the first ground point and the second ground point of the ground member (320),

wherein one end of the connecting line is connected to the other end of the first feeding unit (341) and the other end of the second feeding unit (341),

wherein the other end of the connecting line is connected to one end of the first feeding unit (341) and one end of the second feeding unit (341),

wherein the other end of the first ground unit (348) is connected to a first portion of the first ground point,

wherein the other end of the second ground unit (348) is connected to the ground point,

wherein the feeding point (342) generates a signal,

wherein the signal is supplied to the ground member (320) through a first path and a second path;

wherein the first path includes the first feeding unit (341), the connecting line, and the first feeding point (347);

wherein the second path includes the second feeding unit (341), the connecting line, and the second feeding point (347);

wherein the signal is supplied to the radiator (330),

wherein the antenna apparatus (3001 radiates the signal through the ground member (320) and the radiator (330) at a resonance frequency, and

wherein a band of the resonance frequency is 2.30 GHz to 2.60 GHz.

12. The antenna apparatus of claim 11, wherein the feeding structure comprises a plurality of ground units.

13. The antenna apparatus of claim 12, wherein the ground units have mutually different lengths.

14. The antenna apparatus of claim 12, wherein the ground units have mutually different shapes.

15. The antenna apparatus of claim 12, wherein the ground units diverge from each other.

16. The antenna apparatus of claim 11, wherein the feeding unit comprises a plurality of feeding units.

17. The antenna apparatus of claim 16, wherein the feeding units extend from the feeding point and diverge from each other.

18. The antenna apparatus of claim 16, wherein the feeding units have mutually different lengths.

19. The antenna apparatus of claim 16, wherein the feeding units have mutually different shapes.

20. The antenna apparatus of claim 11, wherein the ground member radiates the signal together with the radiator.