Device for improving antenna radiation performance in electronic device having folded structure, and method therefor

Patent metadata

Field	Value
Publication number	US-12452350-B2
Application number	US-202318311532-A
Country	US
Kind code	B2
Filing date	May 3, 2023
Priority date	Nov 5, 2020
Publication date	Oct 21, 2025
Grant date	Oct 21, 2025

Abstract

An electronic device is provided. The electronic device includes a first housing, a second housing connected to the first housing through a connection member and a wireless communication circuit. A first portion of a first edge of the first housing is formed of a conductive material, an insulating member is disposed on one end of the first portion, and a conductive region of the connection member is connected to another end of the first portion, and a first point of the first portion is connected to a feed point through a capacitor. The second housing includes a second edge having a second length corresponding to the first length, a second portion of the second edge is formed of a conductive material, an opening formed adjacently along the second portion, an insulating member is disposed on one end of the second portion, and the conductive region of the connection member is connected to another end of the second portion, and a switch is disposed between a first point of the second portion and a ground region. The wireless communication circuit may control the switch to electrically open the first point of the second portion and the ground region.

First claim

What is claimed is:

1. An electronic device comprising:
a first housing;
a second housing connected to the first housing via a connection member to be rotatable with respect to the first housing; and
a wireless communication circuit disposed in the first housing or the second housing,
wherein the first housing comprises:
a first edge having a first length,
a first portion of the first edge is formed of a conductive material,
an insulation member is disposed at one end of the first portion, and a conductive area of the connection member is connected another end of the first portion, and
a first point of the first portion is connected to a feeding point via a capacitor having a designated value,

wherein the second housing comprises:
a second edge having a second length corresponding to the first length of the first edge,
a second portion of the second edge corresponding to the first portion is formed of a conductive material,
an opening is formed along and adjacent to the second portion,
an insulation member is disposed at one end of the second portion, and the conductive area of the connection member is connected to another end of the second portion, and
a switch is disposed between a first point of the second portion and a ground area, and

wherein the wireless communication circuit is configured to control the switch, in case that the first housing and the second housing face each other, to electrically disconnect the ground area and the first point of the second portion.

2. The electronic device of claim 1 , wherein a second point of the first portion spaced a designated distance apart from the first point of the first portion is connected to the ground area via a switching circuit.

3. The electronic device of claim 2 , wherein the wireless communication circuit is configured to control the switching circuit connected to the second point of the first portion to change a frequency band of a signal received via the wireless communication circuit.

4. The electronic device of claim 3 , wherein a frequency band of a signal received via the wireless communication circuit is less than or equal to 900 MHz.

5. The electronic device of claim 1 , wherein, in case that the first housing and the second housing face each other, the wireless communication circuit is configured to open the switch to induce a current directed in an identical direction to the first edge and the second edge.

6. The electronic device of claim 1 , wherein, in case that the first housing and the second housing do not face each other, the wireless communication circuit is configured to control the switch electrically connect the ground area and the first point of the second portion.

7. The electronic device of claim 6 , wherein, in case that the first housing and the second housing face each other, the wireless communication circuit is configured to:
connect the switch to a capacitor having a designated value; and
change a frequency band of signals transmitted and/or received via the wireless communication circuit.

8. The electronic device of claim 1 , wherein the first housing comprises a first opening formed along and adjacent to the first portion.

9. The electronic device of claim 8 , wherein at least one of the first opening formed along and adjacent to the first portion and a second opening formed along and adjacent to the second portion is filled with a non-conductive material.

10. The electronic device of claim 9 , wherein the first housing further comprises a first lateral surface.

11. The electronic device of claim 10 , wherein the capacitor having the designated value is configured to supply a current to the first lateral surface via the first point.

12. The electronic device of claim 11 , wherein the current supplied to the first lateral surface does not flow to the first edge of the first housing.

13. The electronic device of claim 12 , wherein, based on the current supplied to the first lateral surface, a first current flows along the first opening of the first housing in a clockwise direction, and a second current flows along the second opening of the second housing in a counterclockwise direction.

14. The electronic device of claim 13 , wherein the designated value of the capacitor is 10 picofarad (pF) or less.

15. The electronic device of claim 1 , further comprising:
a flexible display,
wherein the flexible display is bent to correspond to an angle formed by the first housing and the second housing around the connecting member.

16. The electronic device of claim 1 ,
wherein the first housing comprises a third edge having a second length shorter than the first length and extending from one end of the first edge, and
wherein the second housing comprises a fourth edge having the second length and extending from one end of the second edge.

17. The electronic device of claim 16 ,
wherein a third portion of the third edge is formed of a conductive material,
wherein insulation members are arranged at opposite ends of the third portion of the third edge, and
wherein one point of the third portion of the third edge is connected to a feeding point.

18. The electronic device of claim 17 , wherein the wireless communication circuit is configured to transmit and/or receive a signal via an electrical path comprising the third portion of the third edge.

19. The electronic device of claim 1 ,
wherein the first housing comprises a third edge having a second length longer than the first length and extending from one end of the first edge,
wherein the second housing comprises a fourth edge having the second length and extending from one end of the second edge, and
wherein the connection member is disposed to be parallel to the third edge and the fourth edge.

20. The electronic device of claim 1 , wherein a sum of the first length of the first edge and the second length of the second edge is greater than or equal to 150 mm.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Yun Himchan
• Kim Junwoo
• Park Sungkoo
• Son Cheolhong
• Lee Kyungjae
• Lee Sangha
• Hwang Soonho

Classifications

• H04B1/005

  adapting radio receivers, transmitters andtransceivers for operation on two or more bands, i.e. frequency ranges · CPC title

• H01Q1/243 Primary

  with built-in antennas · CPC title

• H01Q1/48

  Earthing means; Earth screens; Counterpoises · CPC title

• H01Q1/46

  Electric supply lines or communication lines · CPC title

• H04M1/0268

  including a flexible display panel · CPC title