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.
Patent No.:
Date of Patent:
May. 03, 2022
Filed:
May. 21, 2020
Applicant:
Murata Manufacturing Co., Ltd., Kyoto, JP;
Inventor:
Masamichi Tokuda, Kyoto, JP;
Assignee:
MURATA MANUFACTURING CO., LTD., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 1/22 (2006.01); H03F 1/56 (2006.01); H03F 3/195 (2006.01); H03F 3/24 (2006.01); H04B 1/04 (2006.01);
U.S. Cl.
CPC ...
H03F 1/565 (2013.01); H03F 3/195 (2013.01); H03F 3/245 (2013.01); H04B 1/0458 (2013.01); H03F 2200/168 (2013.01); H03F 2200/237 (2013.01); H03F 2200/258 (2013.01); H03F 2200/318 (2013.01); H03F 2200/444 (2013.01); H03F 2200/451 (2013.01); H03F 2200/54 (2013.01);
Abstract
An amplification circuit includes: an amplifier including a transistor that is connected between an input terminal and an output terminal; an input matching network that is connected between the input terminal and an input side of the amplifier and converts an impedance from a low impedance to a high impedance; a limiter circuit that is connected between a node between the input matching network and the input side of the amplifier, and ground and includes two diodes connected in opposite directions to each other; and a capacitor that is connected in series with the limiter circuit between the node and ground.