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. 12, 2021
Filed:
Aug. 21, 2019
Murata Manufacturing Co., Ltd., Kyoto, JP;
MURATA MANUFACTURING CO., LTD., Kyoto, JP;
Abstract
A filter () has a first passband and a second passband on a higher frequency side than the first passband and includes a series arm circuit () and a parallel arm circuit (), wherein the parallel arm circuit () includes a parallel arm resonator (p) connected between a node (x) and ground and having a resonant frequency frp located between a first passband and a second passband, an inductor (L) connected between the node (x) and the ground, and an inductor (L) connected between the node (x) and the ground and connected in series to the parallel arm resonator (p), and a circuit in which the parallel arm resonator (p) and the inductor (L) are connected in series is connected in parallel to the inductor (L).