ELECTRONIC DEVICE HAVING ANTENNA STRUCTURE

• US 20160211571A1
• Filed: 09/25/2015
• Published: 07/21/2016
• Est. Priority Date: 01/20/2015
• Status: Active Grant

• Current Assignee: Wistron NeWeb Corporation (Wistron Corporation)
• Original Assignee: Wistron NeWeb Corporation (Wistron Corporation)
• Inventors: Peng, Huang-Tse, Lai, Kuo-Jen, Li, Cheng-Feng
• Granted Patent: US 10,249,945 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• 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 13/10 Resonant slot antennas
• CPC Class Codes: H01Q 9/0421 with a shorting wall or a shorting pin at one end of the element H01Q9/0414 takes precedence

Abstract

An electronic device has a front side and a rear side opposite to each other and includes a back cover and an antenna structure. The back cover is disposed at the rear side. The antenna structure includes a first radiation portion, a second radiation portion and a ground portion. The first radiation portion is disposed at the front side. The second radiation portion is disposed between the first radiation portion and the back cover and is connected to the first radiation portion. The ground portion is disposed between the first radiation portion and the back cover, wherein the second radiation portion is grounded to the back cover through the ground portion.

Claims

1. An electronic device, having a front side and a rear side opposite to each other and comprising:

a back cover disposed at the rear side; and

an antenna structure, comprising;

a first radiation portion disposed at the front side;

a second radiation portion disposed between the first radiation portion and the back cover and connected to the first radiation portion; and

a ground portion disposed between the first radiation portion and the back cover, wherein the second radiation portion is grounded to the back cover through the ground portion.

2. The electronic device according to claim 1, wherein the antenna structure comprises at least one connecting portion connected between the first radiation portion and the second radiation portion.

3. The electronic device according to claim 2, wherein a quantity of the at least one connecting portion is two, and the first radiation portion, the second radiation portion and the two connecting portions have a slot therebetween, and the slot forms a slot antenna.

4. The electronic device according to claim 3, wherein the slot antenna is configured for receiving a signal, and a length of the slot antenna is 0.5 times of a wavelength of the signal.

5. The electronic device according to claim 2, wherein the first radiation portion, the connecting portion and the second radiation portion form an inverted-F antenna.

6. The electronic device according to claim 5, wherein the inverted-F antenna is configured for receiving a signal, and a length of the inverted-F antenna is 0.25 times of a wavelength of the signal.

7. The electronic device according to claim 2, wherein an extending direction of the connecting portion is perpendicular to an extending direction of the first radiation portion and the second radiation portion.

8. The electronic device according to claim 1, wherein the first radiation portion, the second radiation portion and the back cover are sequentially arranged at intervals.

9. The electronic device according to claim 1, wherein an extending direction of the first radiation portion, the second radiation portion and the ground portion is parallel to an extending direction of the back cover.

10. The electronic device according to claim 1, wherein the second radiation portion and the ground portion are coplanar with each other.

11. The electronic device according to claim 1, wherein the second radiation portion and the ground portion have a gap therebetween.

12. The electronic device according to claim 1, wherein the antenna structure comprises a short-circuit portion connected between the second radiation portion and the ground portion.

13. The electronic device according to claim 1, comprising a cable, wherein the cable comprises a signal line connected to the second radiation portion and a ground line connected to the ground portion.

14. The electronic device according to claim 1, wherein the antenna structure comprises a connecting portion connected between the ground portion and the back cover.

15. The electronic device according to claim 14, wherein an extending direction of the connecting portion is perpendicular to an extending direction of the ground portion and the back cover.

16. The electronic device according to claim 1, wherein the first radiation portion and the back cover are appearance parts of the electronic device.

17. The electronic device according to claim 1, comprising a speaker, wherein the first radiation portion covers the speaker.

18. The electronic device according to claim 1, comprising a display surface, wherein the display surface is positioned at the front side.

19. The electronic device according to claim 1, wherein a material of the back cover comprises a metal.