Wireless communication device and method for supporting transceiver performance by switching between a coupler path and receive path

• US 10,404,305 B2
• Filed: 01/17/2018
• Issued: 09/03/2019
• Est. Priority Date: 01/17/2017
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Lee, Young Min, Son, Jung Hwan, Lee, Yu Seon
• Primary Examiner(s): Sandiford, Devan A
• Application Number:
  US15/873,539
• Publication Number:
  US 20180205405A1
• Time in Patent Office: 594 Days
• CPC Class Codes: H03D 7/1458 Double balanced arrangements, i.e. where both input signals are differential
• CPC Class Codes: H04B 1/109 by improving strong signal performance of the receiver when strong unwanted signals are present at the receiver input
• CPC Class Codes: H04B 1/30 for homodyne or synchrodyne receivers demodulator circuits H03D1/22
• CPC Class Codes: H04B 1/525 with means for reducing leakage of transmitter signal into the receiver

Abstract

An electronic device is provided that includes an antenna configured to receive a first signal and transmit a second signal. The electronic device also includes a transceiver configured to perform frequency conversion of the first signal and the second signal. The electronic device further includes a coupler path configured to transmit the second signal to the transceiver via a coupler, and a receive path configured to transmit the first signal, obtained from the antenna, to the transceiver. The electronic device also includes a switching unit configured to be connected with the transceiver and switch between the coupler path and the receive path.

Claims

1. An electronic device, comprising:

an antenna configured to receive a first signal and transmit a second signal;

a transceiver configured to perform frequency conversion of the first signal and the second signal;

a coupler path configured to transmit the second signal to the transceiver via a coupler;

a receive path configured to transmit the first signal, obtained from the antenna, to the transceiver; and

a switching unit configured to be connected with the transceiver and switch between the coupler path and the receive path,

wherein the switching unit is connected between the transceiver and a duplexer.

2. The electronic device of claim 1, wherein:

the transceiver comprises a detection port and a receive port; and

wherein the switching unit is configured to;

connect the coupler path with the detection port of the transceiver and connect the receive path with the receive port of the transceiver, in a first mode; and

connect the coupler path with the receive port of the transceiver and connect the receive path with the detection port of the transceiver, in a second mode.

3. The electronic device of claim 1, wherein the receive path comprises:

a low noise amplifier (LNA) configured to amplify the first signal.

4. The electronic device of claim 3, wherein the LNA is connected with the switching unit.

5. The electronic device of claim 1, further comprising:

an amplifier configured to amplify a power of the second signal,

wherein the coupler is connected to the amplifier.

6. The electronic device of claim 1, wherein the coupler is connected to an output end of a duplexer on a transmit path.

7. The electronic device of claim 1, wherein the transceiver comprises:

a down-conversion mixer configured to convert a frequency of a signal input via a receive port of the transceiver.

8. The electronic device of claim 7, wherein the transceiver further comprises:

a local oscillator (LO) configured to generate an LO signal input to the down-conversion mixer.

9. An electronic device, comprising:

an antenna configured to receive a first signal and transmit a second signal;

a transceiver configured to perform frequency conversion of the first signal and the second signal;

a coupler path configured to transmit the second signal to the transceiver via a coupler;

a plurality of receive paths configured to transmit the first signal, obtained from the antenna, to the transceiver; and

a switching unit configured to be connected with the transceiver and switch between the coupler path and at least one of the plurality of receive paths,

wherein the switching unit is connected between the transceiver and a duplexer.

10. The electronic device of claim 9, wherein:

the transceiver comprises a detection port and a plurality of receive ports; and

wherein the switching unit is configured to;

connect the coupler path with the detection port of the transceiver and connect the at least one of the plurality of receive paths with at least one of the plurality of receive ports, in a first mode; and

connect the coupler path with any one of the plurality of receive ports of the transceiver and connect any one of the plurality of receive paths with the detection port of the transceiver, in a second mode.

11. The electronic device of claim 9, wherein each of the plurality of receive paths comprises a duplexer.

12. The electronic device of claim 9, wherein the plurality of receive paths comprise at least one low noise amplifier (LNA).

13. The electronic device of claim 12, wherein the switching unit is connected to the at least one LNA.