Title:
BAND-STOP FILTER AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/077379
Kind Code:
A1
Abstract:
The present application relates to the technical field of communications assemblies, and provided therein are a band-stop filter and an electronic device, which are used to solve the problems in which the volume of a band-stop filter is large and insertion loss is large. The band-stop filter comprises: a waveguide transmission line, which is used to transmit electromagnetic waves; and a plurality of dielectric resonance units, which are arranged in sequence along an extension track of the waveguide transmission line and are used to couple with the waveguide transmission line. The dielectric resonance units comprises at least one dielectric resonator, and the dielectric resonator comprises a first dielectric block and a first conductive layer that covers the outer surface of the first dielectric block. A first surface of the first dielectric block is provided with a blind hole, and the first conductive layer covers the inner surface of the blind hole. The dielectric constant of the material constituting the first dielectric block is greater than 1.
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Inventors:
LI YANTAO (CN)
LIANG DAN (CN)
ZHANG XIAOFENG (CN)
LIU ZHIYU (CN)
LIANG DAN (CN)
ZHANG XIAOFENG (CN)
LIU ZHIYU (CN)
Application Number:
PCT/CN2019/113132
Publication Date:
April 29, 2021
Filing Date:
October 24, 2019
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H01P1/20; H01P7/10
Foreign References:
| CN103474729A | 2013-12-25 | |||
| CN110336104A | 2019-10-15 | |||
| CN110224205A | 2019-09-10 | |||
| US20030218521A1 | 2003-11-27 | |||
| JP2001203506A | 2001-07-27 | |||
| KR100729969B1 | 2007-06-20 | |||
| CN105070991A | 2015-11-18 | |||
| CN204834806U | 2015-12-02 | |||
| CN101317299A | 2008-12-03 | |||
| KR20160102732A | 2016-08-31 |
Other References:
See also references of EP 4040593A4
Attorney, Agent or Firm:
BEIJING ZBSD PATENT & TRADEMARK AGENT LTD. (CN)
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