The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 23, 2025

Filed:

Jul. 08, 2022
Applicant:

Samsung Electronics Co., Ltd., Suwon-si, KR;

Inventors:

Dongil Yang, Suwon-si, KR;

Jooseung Kim, Suwon-si, KR;

Junghwan Son, Suwon-si, KR;

Hyunseok Choi, Suwon-si, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/191 (2006.01); H03F 1/07 (2006.01); H03F 1/56 (2006.01); H03F 3/189 (2006.01); H03F 3/60 (2006.01); H03H 7/38 (2006.01);
U.S. Cl.
CPC ...
H03F 1/565 (2013.01); H03F 1/07 (2013.01); H03F 3/189 (2013.01); H03F 3/60 (2013.01); H03H 7/38 (2013.01); H03F 2200/378 (2013.01);
Abstract

Disclosed is an electronic device comprising: a wireless communication circuit for generating an RF signal, an amplifier circuit electrically connected to the wireless communication circuit and configured to amplify the RF signal, and an antenna connected to the amplifier circuit. The amplifier circuit may comprise: a first amplifier; a second amplifier; a first transmission path connected to an output terminal of the first amplifier and the antenna; a second transmission path connected to an output terminal of the second amplifier and the first transmission path; a first variable impedance circuit located on the first transmission path and configured to change an electrical length of the first transmission path based on the frequency of the RF signal; and a second variable impedance circuit located on the second transmission path and configured to change the electrical length based on a power mode.


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