Front end module for supporting multiple communications and electronic device having same

Patent metadata

Field	Value
Publication number	US-2022302933-A1
Application number	US-202217832938-A
Country	US
Kind code	A1
Filing date	Jun 6, 2022
Priority date	Jan 22, 2020
Publication date	Sep 22, 2022
Grant date	—

Abstract

In an electronic device and a method of operating the electronic device according to various embodiments, a front end module of the electronic device comprises: a first terminal connected to a transmission port for a first communication; a second terminal connected to a reception port for the first communication; a first amplifier connected to the first terminal; an amplifier circuit including a second amplifier and a bypass line connected in parallel with the second amplifier; a first switch connecting the amplifier circuit to one from among the second terminal, a third terminal connected to one of a reception port for a second communication or a transmission port for the second communication, and a fourth terminal connected to one of the reception port for the second communication or the transmission port for the second communication; and a second switch connecting an antenna to one of the amplifier circuit and the first amplifier, wherein a transmission signal of the second communication may be configured to be transmitted to the antenna through the bypass line connected in parallel with the second amplifier included in the amplifier circuit, a reception signal of the second communication may be configured to be transmitted to the reception port for the second communication through the second amplifier.

First claim

What is claimed is:

1 . A front end module (FEM) of an electronic device, comprising:
a first terminal connected to a transmission port for a first communication; a second terminal connected to a reception port for the first communication; a first amplifier connected to the first terminal; an amplifier circuit including a second amplifier and a bypass line connected in parallel to the second amplifier; a first switch configured to connect the amplifier circuit to one of the second terminal, a third terminal connected to one of a reception port or a transmission port for a second communication, or a fourth terminal connected to one of the reception port or the transmission port for the second communication; and a second switch configured to connect an antenna to one of the amplifier circuit or the first amplifier, wherein a transmission signal of the second communication is configured to be transmitted to the antenna through the bypass line connected in parallel to the second amplifier included in the amplifier circuit, and a reception signal of the second communication is configured to be transmitted to the reception port for the second communication through the second amplifier.

2 . The front end module of claim 1 , wherein the amplifier circuit comprises a protection circuit configured to block the transmission signal of the second communication being input to the second amplifier, and
wherein the protection circuit is connected between the second amplifier and the first switch.

3 . The front end module of claim 1 , wherein the first switch comprises a switch comprising a plurality of throws connected to at least one of the second terminal, the third terminal, or the fourth terminal, and one pole connected to the amplifier circuit.

4 . The front end module of claim 1 , wherein the second switch is comprises a switch comprising two throws connected to at least one of the first terminal or the first switch, and one pole connected to the antenna.

5 . The front end module of claim 1 , wherein a frequency band of the first communication partially overlaps a frequency band of the second communication.

6 . The front end module of claim 1 , wherein the front end module is configured to support reception of a third communication having a frequency band partially overlapping a frequency band of the first communication, and
wherein the third terminal or the fourth terminal is connected to a reception port for the third communication.

7 . The front end module of claim 6 , wherein the third terminal or the fourth terminal is connected to a third switch configured to be selectively connected to one of the reception port for the second communication or the reception port for the third communication.

8 . An electronic device comprising:
a first antenna; a first communication circuit including a transmission port for a first communication configured to output a transmission signal of the first communication and a reception port for the first communication configured to receive a reception signal of the first communication; a second communication circuit including a transmission port for a second communication configured to output a transmission signal of the second communication and a reception port for the second communication configured to receive a reception signal of the second communication; and a front end module electrically connected to the first communication circuit and the first antenna, wherein the front end module includes: a first terminal connected to the transmission port for the first communication; a second terminal connected to the reception port for the first communication; a first switch configured to connect an amplifier circuit to one of the second terminal, a third terminal connected to the reception port for the second communication, or a fourth terminal connected to the transmission port for the second communication; a second switch configured to connect the first antenna to one of the amplifier circuit or the first terminal; an amplifier circuit connected between the first switch and the second switch, wherein a first processor is configured to control the front end module to transmit the transmission signal of the second communication to the first antenna through a bypass line connected in parallel to an amplifier included in the amplifier circuit.

9 . The electronic device of claim 8 , wherein the first communication circuit is configured to receive a request signal for requesting transmission of the transmission signal of the second communication from the second communication circuit, and
wherein the first communication circuit is configured to control the amplifier circuit to activate the bypass line in response to the reception of the request signal.

10 . The electronic device of claim 9 , wherein the first communication circuit is configured to control the amplifier circuit to deactivate the amplifier as a part of activating the bypass line.

11 . The electronic device of claim 10 , wherein the first switch comprises a switch comprising a plurality of throws connected to at least one of the second terminal, the third terminal, or the fourth terminal, and one pole connected to the amplifier circuit.

12 . The electronic device of claim 11 , wherein the first communication circuit is configured to control the first switch to connect the amplifier circuit to a terminal connected to the transmission port of the second communication in response to the reception of the request signal.

13 . The electronic device of claim 8 , wherein a frequency band of the first communication partially overlaps a frequency band of the second communication.

14 . The electronic device of claim 8 , wherein the electronic device is configured to support reception of a third communication having a frequency band partially overlapping a frequency band of the first communication, and
wherein the third terminal or the fourth terminal is connected to a reception port of the third communication.

15 . The electronic device of claim 14 , further comprising a third switch configured to connect the first switch to one of the reception port for the second communication or the reception port for the third communication,
wherein the first communication circuit is configured to control the third switch in response to the reception of the reception signal of the second communication.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Nam Janghyun
• Kwak Kyuhyuck
• Na Hyoseok

Classifications

• H04B1/44 Primary

  Transmit/receive switching · CPC title

• H04B1/0064 Primary

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

• H04B1/00

  Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission · CPC title

• H04B1/401

  for selecting or indicating operating mode · CPC title

• H04B1/40 Primary

  Circuits · CPC title