Electronic device including multiple PCBS and antennas printed on PCBS

Patent metadata

Field	Value
Publication number	US-12581007-B2
Application number	US-202318338854-A
Country	US
Kind code	B2
Filing date	Jun 21, 2023
Priority date	Feb 18, 2021
Publication date	Mar 17, 2026
Grant date	Mar 17, 2026

Abstract

An electronic device is provided. The electronic device includes a housing including a first plate facing a first direction and a second plate facing a second direction opposite to the first direction, and forming a space between the first plate and the second plate, a display disposed inside the housing and exposed through the first plate, a first printed circuit board disposed between the display and the second plate, a second printed circuit board disposed between the display and the second plate, a third printed circuit board which is disposed between the display and the second plate and electrically connects the first printed circuit board and the second printed circuit board, and a first antenna coupled to the first printed circuit board, wherein the third printed circuit board may include a second antenna electrically connected to the first antenna.

First claim

What is claimed is:

1 . An electronic device comprising:
a housing which comprises a first plate facing a first direction and a second plate facing a second direction opposite to the first direction, and forms a space between the first plate and the second plate; a display disposed inside the housing and exposed through the first plate; a first printed circuit board disposed between the display and the second plate and arranged to overlap an area formed on an upper end of the second plate; a second printed circuit board disposed between the display and the second plate and separated from the first printed circuit board; a battery disposed substantially on a same plane with the first printed circuit board and the second printed circuit board; a third printed circuit board disposed between the battery and the second plate; and a first antenna coupled to the first printed circuit board, wherein the third printed circuit board comprises a second antenna disposed between the battery and the second plate electrically connected to the first antenna.

2 . The electronic device of claim 1 , wherein the second antenna comprises a conductive pattern formed on the third printed circuit board.

3 . The electronic device of claim 2 , wherein the conductive pattern has a loop shape.

4 . The electronic device of claim 3 , wherein the conductive pattern has a coil shape including a plurality of loops.

5 . The electronic device of claim 3 , wherein the conductive pattern having the loop shape is formed in a direction in which the first antenna and the second antenna are aiding-connected to each other.

6 . The electronic device of claim 1 , wherein the first antenna and the second antenna are aiding-connected to each other.

7 . The electronic device of claim 1 , wherein the second antenna is electrically connected to the first antenna to form a closed circuit.

8 . The electronic device of claim 1 , wherein the third printed circuit board is arranged to overlap at least a part of a second area of the second plate excluding a first area on which the first printed circuit board is disposed among areas of the second plate.

9 . The electronic device of claim 8 , wherein the second antenna is arranged to overlap at least a part of the second area.

10 . The electronic device of claim 1 , wherein the third printed circuit board is a flexible printed circuit board (FPCB).

11 . The electronic device of claim 1 , further comprising:
a ferromagnetic member for inducing magnetic flux to the second antenna.

12 . The electronic device of claim 11 , wherein the ferromagnetic member is attached to a lateral surface in the first direction of the third printed circuit board.

13 . The electronic device of claim 11 , wherein the ferromagnetic member comprises at least one of a mu-metal, permalloy, or ferrite material.

14 . The electronic device of claim 1 , wherein the third printed circuit board comprises:
an extension area extending in a direction in which the third printed circuit board does not overlap the first printed circuit board; and an additional conductive pattern printed on the extension area, electrically connected to the second antenna, and having a coil shape.

15 . The electronic device of claim 1 , wherein the first antenna is a coil antenna comprising a plurality of loops.

16 . The electronic device of claim 1 , further comprising:
a processor, a memory and an integrated circuit coupled to the first printed circuit board, wherein the integrated circuit is electrically connected to the first antenna and the second antenna.

17 . The electronic device of claim 1 , further comprising:
an interface port coupled to the second printed circuit board in order for connection with an external electronic device, and an interface integrated circuit (IC) electrically connectable to the interface port.

18 . The electronic device of claim 1 , wherein the second antenna supports near field communication (NFC) communication.

19 . The electronic device of claim 1 , wherein the second antenna supports magnetic secure transmission (MST) communication.

20 . The electronic device of claim 1 , wherein the first antenna supports at least one of near field communication (NFC) communication, or magnetic secure transmission (MST) communication.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Kang Taejin
• Na Hyoseok
• Kim Jongdoo
• Son Kyungdae
• Jung Jiyoung
• Ju Wanjae

Classifications

• H05K2201/10098

  Components for radio transmission, e.g. radio frequency identification [RFID] tag, printed or non-printed antennas · CPC title

• H05K1/16

  incorporating printed electric components, e.g. printed resistors, capacitors or inductors · CPC title

• H05K1/147

  at least one of the printed circuits being bent or folded, e.g. by using a flexible printed circuit (H05K1/148 takes precedence) · CPC title

• H05K1/142

  Arrangements of planar printed circuit boards in the same plane, e.g. auxiliary printed circuit insert mounted in a main printed circuit · CPC title

• H04M2201/38

  Displays · CPC title