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:
Jun. 13, 2023

Filed:

Jul. 20, 2021
Applicant:

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

Inventors:

Hiroyuki Kani, Kyoto, JP;

Tomohiro Sano, Kyoto, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B 1/04 (2006.01); H04B 1/00 (2006.01); H04B 1/16 (2006.01);
U.S. Cl.
CPC ...
H04B 1/1615 (2013.01); H04B 1/006 (2013.01); H04B 1/04 (2013.01); H04B 2001/0408 (2013.01);
Abstract

In simultaneous communication using multiple frequency bands, the degradation in the communication quality is suppressed. The radio-frequency front-end circuit () includes an antenna terminal (), a transmit filter (), a receive filter, a transport filter, a switch (), and a phase adjusting circuit (). The switch () is capable of connecting the antenna terminal () to the transmit filter () or the receive filter and the transport filter simultaneously. The transmit filter () is disposed on a transmission path (T). The receive filter is disposed on a reception path. The transport filter is disposed on a transport path. The phase adjusting circuit () is disposed on at least one of paths, the transmission path (T), the reception path, and a reception/transmission path.


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