logo

For the Inventor, By the Inventor

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 11336278 B1

PDFFull Text
Date of Patent:
May. 17, 2022

Filed:

Jul. 13, 2017

Switching circuit and high frequency module

Applicant:

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

Inventor:

Masashi Hayakawa, Nagaokakyo, JP;

Assignee:

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

Attorney:

Keating & Bennett, LLP

Primary Examiner:

Jianxun Yang

Int. Cl.
CPC ...
H03K 17/56 (2006.01); H04B 1/00 (2006.01); H04B 1/52 (2015.01); H03K 17/693 (2006.01); H03K 17/00 (2006.01); H03K 17/041 (2006.01); H01L 23/498 (2006.01); H01L 23/66 (2006.01); H04B 1/40 (2015.01); H01L 29/72 (2006.01); H01L 29/772 (2006.01); H01L 29/868 (2006.01);
U.S. Cl.
CPC ...
H03K 17/56 (2013.01); H01L 23/49844 (2013.01); H01L 23/66 (2013.01); H03K 17/002 (2013.01); H03K 17/007 (2013.01); H03K 17/04106 (2013.01); H03K 17/693 (2013.01); H04B 1/00 (2013.01); H04B 1/006 (2013.01); H04B 1/0064 (2013.01); H04B 1/40 (2013.01); H04B 1/52 (2013.01); H01L 23/49822 (2013.01); H01L 29/72 (2013.01); H01L 29/772 (2013.01); H01L 29/7722 (2013.01); H01L 29/868 (2013.01); H01L 2223/6677 (2013.01); H01L 2223/6688 (2013.01); H01L 2224/16225 (2013.01); H01L 2924/15192 (2013.01); H01L 2924/19105 (2013.01);
Abstract

In a switching circuit, an inductance of an inductor of a shunt circuit is such that off capacitance of a second switching device that is in the off state when a first switching device is in the on state is used to define, in the shunt circuit, a series resonance circuit with a desired resonant frequency. Therefore, the frequency of an unnecessary signal to be attenuated is set to the resonant frequency of the series resonance circuit. Thus, the switching circuit achieves improved isolation characteristics with other circuits by attenuating the unnecessary signal.

Find Patent Forward Citations

Hayakawa, Masashi. (2022). Switching circuit and high frequency module (U.S. Patent No. 11336278). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11336278

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

Loading…