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. 12, 2019

Filed:

Apr. 26, 2018
Applicant:

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

Inventors:

Sunao Yamazaki, Nagaokakyo, JP;

Yuichi Takamine, Nagaokakyo, JP;

Toshimaro Yoneda, Nagaokakyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/44 (2006.01); H04B 1/40 (2015.01); H03F 3/19 (2006.01); H01Q 1/50 (2006.01); H03F 3/24 (2006.01);
U.S. Cl.
CPC ...
H04B 1/40 (2013.01); H01Q 1/50 (2013.01); H03F 3/19 (2013.01); H03F 3/245 (2013.01); H03F 2200/294 (2013.01); H03F 2200/451 (2013.01);
Abstract

A multiplexer includes a common terminal, a reception terminal, and transmission terminals; a reception filter between the common terminal and the reception terminal; a transmission filter between the common terminal and the transmission terminal; a transmission filter between the common terminal and the transmission terminal; a first inductor connected in series between the common terminal and the reception filter; a second inductor connected between the transmission terminal and the transmission filter; and a third inductor connected between the transmission terminal and the transmission filter. The first inductor and the second inductor couple with each other through a magnetic field, and the first inductor and the third inductor couple with each other through a magnetic field.


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