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:
Aug. 25, 2020

Filed:

May. 11, 2018
Applicant:

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

Inventor:

Ken Kishimoto, Kyoto, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01P 5/18 (2006.01); H03H 7/38 (2006.01); H03H 7/01 (2006.01);
U.S. Cl.
CPC ...
H01P 5/185 (2013.01); H01P 5/187 (2013.01); H03H 7/0138 (2013.01); H03H 7/38 (2013.01);
Abstract

A directional coupler includes first and second transmission lines, first and second coupling lines, a termination resistor, a coupling signal output terminal, and an impedance-adjusting circuit. The first coupling line is electromagnetically coupled to the first transmission line. The second coupling line is connected in series with the first coupling line and is electromagnetically coupled to the second transmission line. The termination resistor is connected to an end portion of the first coupling line that is on the opposite side from the end portion of the first coupling line that is connected to the second coupling line. The coupling signal output terminal is connected to an end portion of the second coupling line that is on the opposite side from the end portion of the second coupling line that is connected to the first coupling line. The impedance-adjusting circuit is connected between the first and second coupling lines.


Find Patent Forward Citations

Kishimoto, Ken. (2020). Directional coupler, high-frequency front-end module, and communication device (U.S. Patent No. 10756408). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10756408

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

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