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:
Mar. 24, 2020

Filed:

Apr. 12, 2018
Applicant:

Murata Manufacturing Co., Ltd., Nagaokakyo-shi, Kyoto-fu, JP;

Inventor:

Tetsuo Taniguchi, Nagaokakyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H 7/42 (2006.01); H01P 5/10 (2006.01); H01F 17/00 (2006.01); H03H 7/09 (2006.01); H01F 27/00 (2006.01); H03H 7/01 (2006.01); H03H 7/48 (2006.01); H03H 7/46 (2006.01); H04B 1/58 (2006.01); H03H 1/00 (2006.01); H03H 7/38 (2006.01);
U.S. Cl.
CPC ...
H03H 7/422 (2013.01); H01F 17/00 (2013.01); H01F 27/00 (2013.01); H03H 7/0115 (2013.01); H03H 7/0123 (2013.01); H03H 7/09 (2013.01); H03H 7/461 (2013.01); H03H 7/482 (2013.01); H04B 1/581 (2013.01); H03H 7/38 (2013.01); H03H 2001/0085 (2013.01);
Abstract

A small-sized balance filter includes an unbalanced terminal and two pairs of balanced terminals and has a low signal insertion loss. An unbalanced terminal, a first balanced terminal including first and second terminals, and a second balanced terminal Rx including first and second terminals are provided. An unbalanced-side inductor is provided between the unbalanced terminal and the ground, first balanced-side inductors are provided between the first and second terminals of the first balanced terminal, second balanced-side inductors are provided between the first and second terminals of the second balanced terminal, and the unbalanced-side inductor is electromagnetic-field-coupled to each of the first and second balanced-side inductors.


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