Antenna

• US 20060232482A1
• Filed: 07/15/2005
• Published: 10/19/2006
• Est. Priority Date: 04/15/2005
• Status: Active Grant

• Current Assignee: Wistron NeWeb Corporation (Wistron Corporation)
• Original Assignee: Wistron NeWeb Corporation (Wistron Corporation)
• Inventors: Chen, Chih Lung
• Granted Patent: US 7,215,286 B2
• Time in Patent Office: Days
• US Class Current: 343/702
• CPC Class Codes: H01Q 1/243 with built-in antennas
• CPC Class Codes: H01Q 9/16 with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole H01Q9/44 takes precedence
• CPC Class Codes: H01Q 9/28 Conical, cylindrical, cage, strip, gauze, or like elements having an extended radiating surface; Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines waveguide horns or mouths H01Q13/00; slot antennas H01Q13/00
• CPC Class Codes: H01Q 9/30 with feed to end of elongated active element, e.g. unipole H01Q9/44 takes precedence
• CPC Class Codes: H01Q 9/40 Element having extended radiating surface
• CPC Class Codes: H01Q 9/42 with folded element, the folded parts being spaced apart a small fraction of the operating wavelength

Abstract

An antenna comprises an antenna body, a cable, a substrate, a ground element and a conductive element. The antenna body, which is U-shaped, comprises a first portion, a second portion and a third portion. The first portion is planar, the second portion is connected to an end of the first portion, the third portion is connected to an end of the second portion, and the first portion is parallel to the third portion. The ground element and the conductive element are disposed on the substrate. An isolation gap is formed between the ground element and the conductive element. The first portion is coupled to the conductive element. The cable comprises a signal line coupled to the conductive element.

Claims

1. An antenna for receiving a wireless signal, comprising:

an antenna body, which is U-shaped, comprising a first portion, a second portion and a third portion, wherein the first portion is planar, the second portion connected to an end of the first portion, the third portion connected to an end of the second portion, and the first portion is parallel to the third portion; and

a signal line, coupled to the first portion, wherein the signal line is coupled to another end of the first portion opposite to the second portion.

2. The antenna as claimed in claim 1, further comprising:

a ground line, next to the signal line; and

a ground element, coupled to the ground line.

3. The antenna as claimed in claim 2, further comprising a substrate, wherein the ground element is disposed on the substrate.

4. The antenna as claimed in claim 3, further comprising a conductive element, straddling the antenna body and the signal line, wherein the conductive element is disposed on the substrate.

5. The antenna as claimed in claim 4, wherein an isolation gap is formed between the conductive element and the ground element.

6. The antenna as claimed in claim 2, wherein the ground element is oblong, a length of the ground element is substantially equal to λ

/8, and λ

is a wave length of the wireless signal.

7. The antenna as claimed in claim 1, wherein when the antenna receives the wireless signal, the wireless signal passes through the third portion, the second portion and the first portion following a U-shaped path, and is transmitted to the signal line, wherein the third portion comprises an opening.

8. The antenna as claimed in claim 7, wherein a length of the U-shaped path is substantially equal to λ

/4, and λ

is a wave length of the wireless signal.

9. The antenna as claimed in claim 1, wherein the third portion is planar.

10. A notebook for receiving a wireless signal, comprising:

a display;

a back plate, connected to the display;

an antenna body, which is U-shaped, comprising a first portion, a second portion and a third portion, wherein the first portion is planar, the second portion connected to an end of the first portion, the third portion connected to an end of the second portion, and the first portion is parallel to the third portion;

a signal line, coupled to the first portion;

a ground line, next to the signal line;

a ground element, coupled to the ground line; and

a connection element, straddling the ground element and the back plate.

11. The notebook as claimed in claim 10, wherein the ground element is oblong, a length of the ground element is substantially equal to λ

/8, and λ

is a wave length of the wireless signal.

12. The notebook as claimed in claim 10, further comprising a substrate, wherein the ground element is disposed on the substrate.

13. The notebook as claimed in claim 10, further comprising a conductive element, straddling the antenna body and the signal line, wherein the conductive element is disposed on the substrate.

14. The notebook as claimed in claim 13, wherein an isolation gap is formed between the conductive element and the ground element.

15. The notebook as claimed in claim 10, wherein the signal line is coupled to another end of the first portion opposite to the second portion.

16. The notebook as claimed in claim 10, wherein when the antenna receives the wireless signal, the wireless signal passes through the third portion, the second portion and the first portion following a U-shaped path, and is transmitted to the signal line, wherein the third portion comprises an opening.

17. The notebook as claimed in claim 10, wherein a length of the U-shaped path is substantially equal to λ

/4, and λ

is a wave length of the wireless signal.