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. 06, 2025
Filed:
Dec. 02, 2021
Applicant:
Murata Manufacturing Co., Ltd., Kyoto, JP;
Inventors:
Hitoshi Akamine, Kyoto, JP;
Masatoshi Hase, Kyoto, JP;
Assignee:
MURATA MANUFACTURING CO., LTD., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/191 (2005.12); H03F 1/56 (2005.12); H03F 3/195 (2005.12); H03F 3/24 (2005.12); H04B 1/04 (2005.12);
U.S. Cl.
CPC ...
H03F 3/245 (2012.12); H03F 1/565 (2012.12); H03F 3/195 (2012.12); H04B 1/0458 (2012.12); H03F 2200/168 (2012.12); H03F 2200/171 (2012.12); H03F 2200/318 (2012.12); H03F 2200/451 (2012.12); H03F 2200/543 (2012.12);
Abstract
An output matching circuit includes: a converter electrically connected to an output end of a power amplifier element to convert an impedance of the output end to an impedance higher than the impedance of the output end by magnetic coupling; and a first filter circuit electrically connected between the output end of the power amplifier element and the converter to make a short circuit in a frequency band different from a predetermined transmission frequency band.