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:
Jul. 23, 2019
Filed:
Dec. 08, 2017
Applicant:
Murata Manufacturing Co., Ltd., Kyoto, JP;
Inventor:
Saneaki Ariumi, Kyoto, JP;
Assignee:
MURATA MANUFACTURING CO., LTD., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/191 (2006.01); H03F 1/26 (2006.01); H03F 3/19 (2006.01); H03F 3/21 (2006.01); H03F 3/193 (2006.01); H03F 3/24 (2006.01); H03F 3/60 (2006.01);
U.S. Cl.
CPC ...
H03F 1/26 (2013.01); H03F 3/19 (2013.01); H03F 3/193 (2013.01); H03F 3/21 (2013.01); H03F 3/245 (2013.01); H03F 3/601 (2013.01); H03F 2200/213 (2013.01); H03F 2200/294 (2013.01); H03F 2200/378 (2013.01); H03F 2200/451 (2013.01); H03F 2203/45576 (2013.01);
Abstract
Provided is a low-noise amplifier that can effectively suppress noise included in an input signal. A low-noise amplifier according to an embodiment of the present invention amplifies a reception signal in a predetermined frequency band from an antenna. The low-noise amplifier includes an input terminal, an output terminal, a field effect transistor, and a branch circuit. The branch circuit is branched from a circuit connecting the input terminal or the output terminal to the field effect transistor. The branch circuit is connected to the elastic wave resonator.