Antenna and electronic device having same

Patent metadata

Field	Value
Publication number	US-12451907-B2
Application number	US-202217885127-A
Country	US
Kind code	B2
Filing date	Aug 10, 2022
Priority date	Feb 10, 2020
Publication date	Oct 21, 2025
Grant date	Oct 21, 2025

Abstract

An electronic device includes a side surface member, a wireless communication circuit, and a switch circuit. The side surface member includes a first conductive portion coupled to the wireless communication circuit and the switch circuit, a second conductive portion coupled to the switch circuit, and a first non-conductive portion disposed between the first conductive portion and the second conductive portion. The switch circuit is controlled to be in at least one of a first state, a second state, and a third state, based on a first frequency of a first operating signal supplied by the wireless communication circuit. The switch circuit is configured to couple the second conductive portion to the wireless communication circuit, in the first state, and to couple the second conductive portion to the first conductive portion, in the second state.

First claim

What is claimed is:

1. An electronic device comprising:
a housing comprising a side surface member;
a wireless communication circuit disposed inside the housing; and
a first switch circuit,
wherein the side surface member comprises:
a first conductive portion coupled to the wireless communication circuit and the first switch circuit;
a second conductive portion coupled to the first switch circuit; and
a first non-conductive portion disposed between the first conductive portion and the second conductive portion,

wherein the first switch circuit is configured to be controlled to be in at least one of a first state, a second state, and a third state, based on a first frequency of a first operating signal supplied by the wireless communication circuit,
wherein, in the first state, the first switch circuit is configured to couple the second conductive portion to the wireless communication circuit,
wherein, in the second state, the first switch circuit is configured to couple the second conductive portion to the first conductive portion, and
wherein the third state is an open state.

2. The electronic device of claim 1 , wherein the first switch circuit comprises:
a first port that is coupled to the second conductive portion;
a second port that is coupled to the first conductive portion; and
a third port that is coupled to a second feeding part configured to feed power to the second conductive portion,
wherein, in the first state, the first switch circuit is configured to couple the first port to the second port,
wherein, in the second state, the first switch circuit is configured to couple the first port to the third port, and
wherein, in the third state, the first switch circuit is configured to uncouple the first port, the second port, and the third port.

3. The electronic device of claim 2 , further comprising a processor configured to control the first switch circuit,
wherein the processor or the wireless communication circuit is configured to:
control the first switch circuit to couple the first port to the third port, when the first frequency of the first operating signal supplied from a first feeding part to the first conductive portion is less than a threshold frequency, and
control the first switch circuit to couple the first port to the second port, when the first frequency of the first operating signal is greater than or equal to the threshold frequency.

4. The electronic device of claim 3 , wherein the first switch circuit further comprises a fourth port that is coupled to a matching circuit, and the first switch circuit is further to be controlled to be in a fourth state in which the first port is coupled to the fourth port.

5. The electronic device of claim 4 , wherein the processor or the wireless communication circuit is further configured to:
control the first switch circuit to couple the first port to the third port, when the first frequency of the first operating signal fed is less than the threshold frequency and a second operating signal is fed from the second feeding part,
control the first switch circuit to couple the first port to the second port, when the first frequency of the first operating signal fed is greater than or equal to the threshold frequency, and
control the first switch circuit to couple the first port to the fourth port, when the first frequency of the first operating signal fed is less than the threshold frequency and a signal is not fed from the second feeding part.

6. The electronic device of claim 2 , wherein the wireless communication circuit is configured to:
provide the first operating signal in a low frequency band through a first feeding part configured to feed first power to the first conductive portion, and
provide a second operating signal in at least one of a middle frequency band and a high frequency band through the second feeding part.

7. The electronic device of claim 1 , further comprising a feeding point configured to feed first power to the first conductive portion through a first feeding part, wherein the feeding point is coupled to the first conductive portion at a position where a first distance between the position and a first end of the first conductive portion adjacent to the first non-conductive portion is shorter than a second distance between the position and an opposite end of the first conductive portion.

8. The electronic device of claim 1 , wherein the side surface member further comprises a short surface and a long surface, and
the first conductive portion is disposed in a direction of the short surface, and the second conductive portion is disposed in a direction of the long surface.

9. The electronic device of claim 1 , further comprising a second switch circuit configured to connect the first conductive portion to at least one of a matching circuit and a capacitance element.

10. The electronic device of claim 9 , further comprising:
a third conductive portion configured as a part of the housing or configured as at least a part inside the housing, and electrically spaced apart from the second conductive portion by a second non-conductive portion; and
a third switch circuit connected to the second conductive portion and the third conductive portion.

11. The electronic device of claim 10 , wherein the first switch circuit comprises a first port, a second port, and a third port,
the first port is connected to the second conductive portion, the second port is connected to the first conductive portion, and the third port is connected to a second feeding part configured to feed power to the second conductive portion,
the third switch circuit comprises a sixth port and a seventh port, and a fifth port connected to at least one of the sixth port and the seventh port,
the fifth port is connected to the second conductive portion,
the sixth port is connected to the third conductive portion, and
the seventh port is connected to the capacitance element.

12. The electronic device of claim 11 , wherein the electronic device further comprises a processor and a first feeding part configured to feed power to the first conductive portion, and
the processor or the wireless communication circuit is configured to:
control the first switch circuit to couple the first port to the third port,
control the second switch circuit to couple the first conductive portion to the matching circuit, and
control the first feeding part and the second feeding part to feed power, when the third switch circuit is controlled to couple the fifth port to the sixth port and to the seventh port.

13. The electronic device of claim 11 , wherein the electronic device further comprises a processor and a first feeding part configured to feed power to the first conductive portion, and
the processor or the wireless communication circuit is configured to:
control the first switch circuit to couple the first port to the second port, and
control the first feeding part to feed the power, when the second switch circuit is controlled to couple the first conductive portion to the capacitance element.

14. The electronic device of claim 13 , wherein the first switch circuit further comprises an eighth port connected to the matching circuit, and
the processor or the wireless communication circuit is configured to:
control the first feeding part to feed the power, when the first switch circuit is controlled to further couple the first port to the eighth port.

15. The electronic device of claim 11 , wherein the electronic device further comprises a processor and the second feeding part, and
the processor or the wireless communication circuit

Assignees

• Samsung Electronics Co Ltd

Inventors

• Shin Dongryul
• Kim Seho
• Park Gyubok
• Park Jeongwan
• Park Joonbo
• Bang Jinkyu
• Sakong Min
• Son Moonsoo
• Lee Kwanseok
• Lim Byungman
• Jang Sooyoung

Classifications

• H04B1/40 Primary

  Circuits · CPC title

• H01Q1/243

  with built-in antennas · CPC title

• H04B1/18

  Input circuits, e.g. for coupling to an antenna or a transmission line (coupling networks between antennas or lines and receivers independent of the nature of the receiver H03H) · CPC title

• H04B1/0458

  Arrangements for matching and coupling between power amplifier and antenna or between amplifying stages (matching circuits in general H03H) · CPC title

• H04B1/44

  Transmit/receive switching · CPC title