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:
Dec. 27, 2022

Filed:

Jul. 24, 2017
Applicant:

Kyocera Corporation, Kyoto, JP;

Inventors:

Kazuyuki Hamatani, Kyoto, JP;

Hiroyuki Tanaka, Kyoto, JP;

Assignee:

KYOCERA Corporation, Kyoto, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H 9/02 (2006.01); H03H 9/05 (2006.01); H03H 9/10 (2006.01); H03H 9/145 (2006.01); H03H 9/25 (2006.01); H03H 9/64 (2006.01); H03H 9/72 (2006.01); H04B 11/00 (2006.01);
U.S. Cl.
CPC ...
H03H 9/02874 (2013.01); H03H 9/02559 (2013.01); H03H 9/02637 (2013.01); H03H 9/02834 (2013.01); H03H 9/02897 (2013.01); H03H 9/02937 (2013.01); H03H 9/059 (2013.01); H03H 9/1071 (2013.01); H03H 9/145 (2013.01); H03H 9/25 (2013.01); H03H 9/6483 (2013.01); H03H 9/72 (2013.01); H03H 9/725 (2013.01); H04B 11/00 (2013.01);
Abstract

The multiplexer includes a plurality of IDT electrodes on a substrate, an insulating cover located on the substrate so as to configure one or more spaces above the plurality of IDT electrodes, an antenna terminal, transmission terminal, and reception terminal which are all located on the substrate and pass through the cover, and a reinforcing layer which is located on the cover and is made of metal. By the plurality of IDT electrodes, a transmission filter located in a signal path connecting the antenna terminal and the transmission terminal and a receiving filter located in a signal path connecting the antenna terminal and the reception terminal. The reinforcing layer includes a first area part facing the transmission filter and a second area part which faces the receiving filter and is separated from the first area part.


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