Title:
BANDSTOP FILTER AND MULTI-STOPBAND FILTER
Document Type and Number:
WIPO Patent Application WO/2022/161178
Kind Code:
A1
Abstract:
A bandstop filter, comprising: a resonance module and a dielectric substrate, which are connected. The resonance module comprises an input port, a first dielectric resonator, a second dielectric resonator, a first resonance unit and an output port, wherein a coupling pattern is configured between the first dielectric resonator and the second dielectric resonator; a coupling pattern is configured between one dielectric resonator in the first resonance unit and the first dielectric resonator; and a transmission conductor is arranged inside the dielectric substrate, an input end of the transmission conductor is connected to the input port via a first conductive hole, and an output end of the transmission conductor is connected to the output port via a second conductive hole. Each dielectric resonator is located in a resonance cavity, such that a multi-layer cavity arrangement can be formed, and by using inter-cavity coupling of the multi-layer cavity arrangement, a resonance effect can be improved, thereby achieving higher suppression for a specified frequency band.
Inventors:
ZHAO GUOSHUAI (CN)
LIANG DAN (CN)
WANG YONGBIAO (CN)
YU XI (CN)
LIU ZHIYU (CN)
LIANG DAN (CN)
WANG YONGBIAO (CN)
YU XI (CN)
LIU ZHIYU (CN)
Application Number:
PCT/CN2022/071703
Publication Date:
August 04, 2022
Filing Date:
January 13, 2022
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H01P1/205
Foreign References:
| US5793267A | 1998-08-11 | |||
| JPH07336109A | 1995-12-22 | |||
| US5557246A | 1996-09-17 | |||
| JPH1127004A | 1999-01-29 | |||
| CN105048041A | 2015-11-11 | |||
| CN101719579A | 2010-06-02 |
Attorney, Agent or Firm:
SHENPAT INTELLECTUAL PROPERTY AGENCY (CN)
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