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.:
Date of Patent:
Jan. 11, 2022
Filed:
Sep. 30, 2020
Murata Manufacturing Co., Ltd., Kyoto, JP;
Hiroyuki Kani, Kyoto, JP;
MURATA MANUFACTURING CO., LTD., Kyoto, JP;
Abstract
A front-end circuit includes a power amplifier circuit configured to amplify power of multiple transmission waves having different frequency bands, a transmission filter provided between the power amplifier circuit and an antenna and configured to pass a predetermined transmission frequency band of an output signal of the power amplifier circuit, a switch provided between the power amplifier circuit and the antenna, and a matching circuit. In accordance with switching of whether the matching circuit is connected, an insertion loss in a frequency band of an intermodulation distortion within a communication band in an intra-band carrier aggregation mode is increased as compared to an insertion loss in a frequency band of an intermodulation distortion within the communication band in a single mode.