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:
Oct. 27, 2020
Filed:
Jan. 18, 2019
Murata Manufacturing Co., Ltd., Kyoto, JP;
Atsushi Horita, Kyoto, JP;
Koji Nosaka, Kyoto, JP;
MURATA MANUFACTURING CO., LTD., Kyoto, JP;
Abstract
A filter () includes a series-arm circuit () connected between an input/output terminal () and an input/output terminal (); and a parallel-arm circuit () connected between a ground and a path that connects the input/output terminal () and the input/output terminal (). One circuit among the series-arm circuit () and the parallel-arm circuit () is constituted by a parallel-arm resonator (p) and a parallel-arm resonator (p) that are connected in parallel to each other and that are connected to a node (x) on the path. The parallel-arm resonators (p) and (p) form a pass band, together with another circuit among the series-arm circuit () and the parallel-arm circuit (). The parallel-arm resonator (p) has a resonant frequency lower than a resonant frequency of the parallel-arm resonator (p) and has an impedance higher than an impedance of the parallel-arm resonator (p).