Antenna for foldable electronic device and foldable electronic device

Patent metadata

Field	Value
Publication number	US-12224506-B2
Application number	US-202118044303-A
Country	US
Kind code	B2
Filing date	Aug 5, 2021
Priority date	Sep 10, 2020
Publication date	Feb 11, 2025
Grant date	Feb 11, 2025

Abstract

A foldable electronic device includes a first housing and a second housing that are rotationally connected to each other by means of rotating shafts located on two sides, and an antenna. The first housing can switch between an unfolded state and a folded state relative to the second housing, and the antenna is disposed in a closed slot. The antenna includes a first antenna segment and a second antenna segment that are sequentially connected and disposed in a length direction of the antenna. One end of the first antenna segment is connected to a ground plate of the first housing. The first antenna segment extends from one end toward a direction in which an opening/closing region of the first housing and the second housing in the unfolded state is away from the first housing.

First claim

What is claimed is:

1. An antenna, comprising:
a first antenna segment and a second antenna segment that are sequentially connected and disposed in a length direction of the antenna,
wherein the antenna is for a foldable electronic device, the foldable electronic device comprises a first housing and a second housing, the first housing and the second housing are rotatably connected to each other by using a rotating shaft located between the first housing and the second housing so that the foldable electronic device switches between an unfolded state and a folded state, the first housing is of a first side on which a display screen of the foldable electronic device is located, the second housing is of a second side on which a keyboard of the foldable electronic device is located, the antenna is disposed in a space formed by a region surrounded by the first housing, the second housing, and the rotating shaft, and, when the foldable electronic device is in the unfolded state, an opening/closing region is formed between the first housing and the second housing
wherein the first antenna segment includes a first end and a second end, the first end of the first antenna segment is connected to a ground plate of the first housing, and the first antenna segment extends toward the opening/closing region, from the first end of the first antenna segment to the second end of the first antenna segment; and
the second antenna segment includes a third end and a fourth end, the third end of the second antenna segment is connected to the second end of the first antenna segment so that the second antenna segment, at the third end of the second antenna segment, is disposed at an angle to the first antenna segment at the second end of the first antenna segment, the fourth end of the second antenna segment is spaced apart from the ground plate of the first housing, the first antenna segment is entirely disposed away from a lower edge of the first housing relative to the second antenna segment entirely, the second antenna segment further comprises a feed part, and a radio frequency module of the foldable electronic device performs feeding on the feed part of the second antenna segment by using a feed line directly or by means of coupled feeding.

2. The antenna according to claim 1 , wherein the second antenna segment is an L-shaped antenna segment and comprises a first section and a second section that intersect with each other, the first section of the L-shaped antenna segment is connected to the first antenna segment, and a fifth end of the second section of the L-shaped antenna segment is the fourth end of the second antenna segment.

3. The antenna according to claim 2 , wherein the first section of the L-shaped antenna segment is disposed perpendicular to the first antenna segment, and the second section of the L-shaped antenna segment is disposed in parallel to the first antenna segment.

4. The antenna according to claim 2 , wherein the second section of the L-shaped antenna segment is the feed part.

5. The antenna according to claim 4 , wherein the fifth end of the second section of the L-shaped antenna segment is connected to a sixth end of a capacitor, and a seventh end of the capacitor is connected to the radio frequency module by using the feed line.

6. The antenna according to claim 4 , wherein a notch is disposed at the fifth end of the second section of the L-shaped antenna segment, the antenna further comprises a feed branch, a main body of the feed branch is located in the notch, an isolation gap is formed between the main body of the feed branch and the second section, a part of the feed branch, other than the main body, is located outside the notch, and the part of the feed branch that is located outside the notch is connected to the radio frequency module by using the feed line and is coupled to the second section of the L-shaped antenna segment for the feeding by using the isolation gap.

7. The antenna according to claim 4 , wherein a metal column is connected to a surface of the second section of the L-shaped antenna segment and that is disposed opposite to the first antenna segment, and a free end of the metal column is connected to the radio frequency module by using the feed line.

8. The antenna according to claim 1 , wherein the first antenna segment and the second antenna segment of the antenna are formed by a bending metal sheet.

9. The antenna according to claim 1 , wherein the first antenna segment is a sheet-shaped antenna segment, and the second antenna segment is an L-shaped and sheet-shaped antenna segment.

10. The antenna according to claim 9 , wherein a second width of the second antenna segment is less than or equal to a first width of the first antenna segment.

11. The antenna according to claim 10 , wherein
based on that the second width of the second antenna segment is less than the first width of the first antenna segment, the second antenna segment is located in a middle of the first antenna segment in a width direction of the antenna, or
based on that the second width of the second antenna segment is equal to the first width of the first antenna segment, the second antenna segment is flush with the first antenna segment in the width direction of the antenna.

12. The antenna according to claim 11 , wherein there is a gap between the fourth end of the second antenna segment and the ground plate of the first housing, the antenna is of a three-dimensional structure, the first antenna segment, the second antenna segment, and the first housing surround the region to form a cavity, and the cavity communicates with the gap.

13. An antenna, comprising:
a first antenna segment and a second antenna segment that are sequentially connected and disposed along a length direction of the antenna,
wherein the antenna is for a foldable electronic device, the foldable electronic device comprises a first housing and a second housing, the first housing and the second housing are rotatably connected to each other by using a rotating shaft located between the first housing and the second housing so that the foldable electronic device switches between an unfolded state and a folded state, the antenna is disposed in a space formed by a region surrounded by the first housing, the second housing, and the rotating shaft, and, when the foldable electronic device is in the unfolded state, the first housing is located above the second housing, and an opening/closing region is formed between the first housing and the second housing, wherein, when the foldable electronic device is in the unfolded state, the second antenna segment is located below the first antenna segment,
wherein the antenna is of a three-dimensional structure,
wherein the first antenna segment includes a first end and a second end, the first end of the first antenna segment is connected to a ground plate of the first housing, and the first antenna segment extends toward the opening/closing region, from the first end of the first antenna segment to the second end of the first antenna segment; and
the second antenna segment includes a third end and a fourth end, the third end of the second antenna segment is connected to the second end of the first antenna segment so that the second antenna segment, at the third end of the second antenna segment, is disposed at an angle to the first antenna segment at the second end of the first antenna segment, the fourth end of the second antenna segment is spaced apart from the ground plate of the first housing, the second antenna segment further comprises a feed part, and a radio frequency module of the foldable electronic device directly performs feeding on the feed part of the

Assignees

• Huawei Tech Co Ltd

Inventors

• Zhou Yuan
• Liu Xiaopeng
• Hou Meng
• Yu Dong

Classifications

• H01Q1/50

  Structural association of antennas with earthing switches, lead-in devices or lightning protectors · CPC title

• H01Q1/48

  Earthing means; Earth screens; Counterpoises · CPC title

• H01Q1/2266 Primary

  disposed inside the computer · CPC title

• G06F1/1698

  the I/O peripheral being a sending/receiving arrangement to establish a cordless communication link, e.g. radio or infrared link, integrated cellular phone (details of antennas disposed inside a computer H01Q1/2266) · CPC title

• G06F1/1616

  with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position · CPC title