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:
Mar. 12, 2024

Filed:

Oct. 10, 2020
Applicant:

Anhui Anuki Technologies Co., Ltd., Anhui, CN;

Inventors:

Chenggong He, Anhui, CN;

Xiaodong Wang, Anhui, CN;

Chengjie Zuo, Anhui, CN;

Jun He, Anhui, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H 7/01 (2006.01); H03H 7/46 (2006.01); H03H 9/54 (2006.01);
U.S. Cl.
CPC ...
H03H 7/0161 (2013.01); H03H 7/46 (2013.01); H03H 9/542 (2013.01);
Abstract

Provided by a bandpass filter circuit and a multiplexer. The bandpass filter circuit includes at least one electromagnetic LC filter circuit and at least one acoustic wave resonance unit. The at least one acoustic wave resonance unit includes an input port, an output port, at least one circuit element and at least three resonators. The at least one electromagnetic LC filter circuit is electrically connected to the at least one acoustic wave resonance unit, and the at least three resonators include at least one first resonator and at least one second resonator. In a case where the at least one first resonator includes one first resonator, the first resonator is connected in series between the input port and the output port.


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