Title:
NOTCH FILTER AND MULTI-FREQUENCY NOTCH FILTER
Document Type and Number:
WIPO Patent Application WO/2022/193380
Kind Code:
A1
Abstract:
Disclosed are a notch filter and a multi-frequency notch filter. The notch filter comprises at least one notch filter unit, each notch filter unit comprising an input port, an output port, at least three resonators, and at least one inductive element, wherein the at least three resonators comprise at least two first resonators and at least one second resonator. The at least two first resonators are connected in series to each other, and the at least two first resonators, which are connected in series to each other, are connected in series between the input port and the output port. A first end of each second resonator is connected to a connection point between two adjacent first resonators, and a second end of each second resonator is connected to a fixed potential end. Each inductive element is connected in parallel to one second resonator.
More Like This:
Inventors:
SHI QILIN (CN)
ZUO CHENGJIE (CN)
HE JUN (CN)
ZUO CHENGJIE (CN)
HE JUN (CN)
Application Number:
PCT/CN2021/086063
Publication Date:
September 22, 2022
Filing Date:
April 09, 2021
Export Citation:
Assignee:
ANHUI ANUKI TECH CO LTD (CN)
International Classes:
H03H17/02
Foreign References:
| CN108023568A | 2018-05-11 | |||
| CN1630980A | 2005-06-22 | |||
| CN104969467A | 2015-10-07 | |||
| CN111490749A | 2020-08-04 | |||
| CN110476354A | 2019-11-19 | |||
| US20140145799A1 | 2014-05-29 | |||
| US20210050843A1 | 2021-02-18 |
Attorney, Agent or Firm:
BEYOND ATTORNEYS AT LAW (CN)
Download PDF: