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:
Mar. 12, 2024
Filed:
Dec. 15, 2020
Murata Manufacturing Co., Ltd., Nagaokakyo, JP;
Toshiaki Takata, Nagaokakyo, JP;
MURATA MANUFACTURING CO., LTD., Kyoto, JP;
Abstract
A multiplexer includes an antenna terminal, an inductance element, and a transmission-side filter and a reception-side filter connected to the antenna terminal. The transmission-side filter has a first pass band, and the reception-side filter has a second pass band. The reception-side filter is connected to the antenna terminal through the inductance element. A center frequency of the second pass band is higher than a center frequency of the first pass band. The reception-side filter includes parallel arm resonance portions including a first parallel arm resonance portion connected closest to the inductance element. An electrostatic capacitance of the first parallel arm resonance portion is larger than an electrostatic capacitance of any other parallel arm resonance portions.