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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.:

US 9647616 B1

PDFFull Text
Date of Patent:
May. 09, 2017

Filed:

Dec. 04, 2014

Power amplifier module

Applicant:

Murata Manufacturing Co., Ltd., Kyoto, JP;

Inventor:

Kenji Saito, Kyoto, JP;

Assignee:

MURATA MANUFACTURING CO., LTD., Kyoto, JP;

Attorney:

Pearne & Gordon, LLP

Primary Examiner:

Hieu Nguyen

Int. Cl.
CPC ...
H03G 3/00 (2006.01); H03F 3/21 (2006.01); H03F 3/19 (2006.01); H03F 1/02 (2006.01); H03F 1/56 (2006.01); H03F 3/24 (2006.01); H03G 1/00 (2006.01);
U.S. Cl.
CPC ...
H03F 3/19 (2013.01); H03F 1/0261 (2013.01); H03F 1/56 (2013.01); H03F 3/245 (2013.01); H03G 1/0088 (2013.01); H03F 2200/18 (2013.01); H03F 2200/387 (2013.01); H03F 2200/411 (2013.01); H03F 2200/451 (2013.01); H03F 2200/504 (2013.01);
Abstract

A power amplifier module includes a first bipolar transistor configured to amplify a radio frequency signal and output an amplified signal and a second bipolar transistor. A base of the second bipolar transistor is supplied with a control voltage for controlling attenuation of the radio frequency signal, and a collector the second bipolar transistor is supplied with a source voltage. The power amplifier module also includes a first resistor, where one end of the first resistor is connected to a supply path of the radio frequency signal to the first bipolar transistor, and a capacitor, where one end of the capacitor is connected to the other end of the first resistor and the other end of the capacitor is connected to the collector of the second bipolar transistor.

Find Patent Forward Citations

Saito, Kenji. (2017). Power amplifier module (U.S. Patent No. 9647616). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9647616

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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