Foldable terminal device

Patent metadata

Field	Value
Publication number	US-11916289-B2
Application number	US-202017439178-A
Country	US
Kind code	B2
Filing date	Mar 7, 2020
Priority date	Mar 15, 2019
Publication date	Feb 27, 2024
Grant date	Feb 27, 2024

Abstract

A foldable terminal device includes a feed source, a first part, and a second part. The first part is configured with a first antenna element that is fed by the first feed source. The second part is configured with a second antenna element that is coupled to the first antenna element for coupled feeding when the foldable terminal device is folded. An operating frequency band of the second antenna element includes an operating frequency band of the first antenna element.

First claim

The invention claimed is:

1. A foldable terminal device, comprising:
a first feed source;
a first part configured with a first antenna element, wherein the first antenna element is configured to be fed by the first feed source; and
a second part configured with a second antenna element,
wherein the second part is configured to couple to the first antenna element for coupled feeding when the foldable terminal device is folded, and
wherein the first antenna element and the second antenna element are configured to operate in a first frequency band when the foldable terminal device is folded.

2. The foldable terminal device of claim 1 , wherein the first antenna element comprises a first antenna radiator, wherein the first antenna radiator comprises a first connection point and a second connection point, wherein the first connection point is grounded, wherein the second connection point is electrically connected to the first feed source, wherein the second antenna element comprises a second antenna radiator, a third connection point, a fourth connection point, and a first tuning element, wherein the second antenna radiator is configured to couple to the first antenna radiator for coupled feeding when the foldable terminal device is folded, wherein both the third connection point and the fourth connection point are grounded, and wherein the first tuning element is electrically connected between a ground and the third connection point and is configured to adjust an operating frequency band of the second antenna element.

3. The foldable terminal device of claim 2 , wherein when the foldable terminal device is folded, a first distance between the first connection point and the third connection point is less than a first preset threshold, and a second distance between the second connection point and the fourth connection point is less than a second preset threshold.

4. The foldable terminal device of claim 2 , wherein when the foldable terminal device is folded, a first distance between the first connection point and the fourth connection point is less than a first preset threshold, and a second distance between the second connection point and the third connection point is less than a second preset threshold.

5. The foldable terminal device of claim 2 , wherein the first part comprises a first frame, wherein the second part comprises a second frame, wherein the first antenna element is disposed around the first frame, wherein the second antenna element is disposed around the second frame, and wherein when the foldable terminal device is folded, the first frame and the second frame are configured to be located on a same side of the foldable terminal device.

6. The foldable terminal device of claim 2 , wherein the first part comprises a first frame, wherein the second part comprises a second frame, wherein when the foldable terminal device is folded, the first frame and the second frame are configured to be located on a same side of the foldable terminal device, wherein the first antenna radiator is the first frame, and wherein the second antenna radiator is the second frame.

7. The foldable terminal device of claim 1 , wherein the foldable terminal device further comprises a second feed source, wherein the first antenna element is configured to be fed by the first feed source and the second feed source, wherein the first antenna element comprises a first antenna radiator, wherein the first antenna radiator comprises a first connection point and a second connection point, wherein the first connection point is electrically connected to the second feed source, wherein the second connection point is electrically connected to the first feed source, wherein the second antenna element comprises a second antenna radiator, a third connection point, a fourth connection point, and a first tuning element, wherein the second antenna radiator is configured to couple to the first antenna radiator for coupled feeding when the foldable terminal device is folded, wherein both the third connection point and the fourth connection point are grounded, and wherein the first tuning element is electrically connected between a ground and the third connection point and is configured to adjust an operating frequency band of the second antenna element.

8. The foldable terminal device of claim 7 , wherein when the foldable terminal device is folded, a first distance between the first connection point and the third connection point is less than a first preset threshold, and wherein a second distance between the second connection point and the fourth connection point is less than a second preset threshold.

9. The foldable terminal device of claim 7 , wherein when the foldable terminal device is folded, a first distance between the first connection point and the fourth connection point is less than a first preset threshold, and a second distance between the second connection point and the third connection point is less than a second preset threshold.

10. The foldable terminal device of claim 7 , wherein the first part comprises a first frame, wherein the second part comprises a second frame, wherein the first antenna element is disposed around the first frame, wherein the second antenna element is disposed around the second frame, and wherein when the foldable terminal device is folded, the first frame and the second frame are configured to be located on a same side of the foldable terminal device.

11. The foldable terminal device of claim 7 , wherein the first part comprises a first frame, wherein the second part comprises a second frame, wherein when the foldable terminal device is folded, the first frame and the second frame are configured to be located on a same side of the foldable terminal device, wherein the first antenna radiator is the first frame, and wherein the second antenna radiator is the second frame.

12. The foldable terminal device of claim 1 , wherein the first antenna element is configured to be fed by the first feed source and operate in the first frequency band, wherein the foldable terminal device further comprises a third feed source, a first filtering element, and a second filtering element, wherein the first antenna element is configured to be fed by the third feed source and operate on a second frequency band, wherein the first filtering element is electrically connected between the first feed source and the first antenna element, wherein the first filtering element is configured to filter a first signal of the second frequency band, wherein the second filtering element is electrically connected between the third feed source and the first antenna element, and wherein the second filtering element is configured to filter a second signal of the first frequency band.

13. The foldable terminal device of claim 12 , wherein the foldable terminal device further comprises a second tuning element electrically connected to the first antenna element, and wherein the second tuning element is configured to adjust the second frequency band.

14. The foldable terminal device of claim 1 , wherein the foldable terminal device further comprises a third feed source, a first filtering element, and a second filtering element, wherein the second antenna element is configured to be fed by the third feed source and operate on a second frequency band, wherein the first filtering element is electrically connected between a ground and the second antenna element, wherein the first filtering element is configured to filter a first signal of the second frequency band, wherein the second filtering element is electrically connected between the third feed source and the second antenna element, and wherein

Assignees

• Huawei Tech Co Ltd

Inventors

• Chu Jiahui
• Yu Dong
• Hou Meng

Classifications

• H01Q1/521 Primary

  reducing the coupling between adjacent antennas · CPC title

• H04B1/0064

  with separate antennas for the more than one band (H04B1/0053 takes precedence) · CPC title

• H04M1/0214

  Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position (combined with translation movement H04M1/0235) · CPC title

• H01Q1/243 Primary

  with built-in antennas · CPC title

• H01Q1/36 Primary

  Structural form of radiating elements, e.g. cone, spiral, umbrella; {Particular materials used therewith}(H01Q1/08, H01Q1/14 take precedence) · CPC title