Title:
WAVEGUIDE FILTER
Document Type and Number:
WIPO Patent Application WO/2021/256611
Kind Code:
A1
Abstract:
The present invention relates to a waveguide filter, and more particularly, to a waveguide filter having a continuous hole. A waveguide filter according to an example of the present invention comprises: a ceramic block having a conductive coating layer formed thereon; an input terminal and an output terminal formed on one surface of the ceramic block; a resonance unit which is formed on the other surface facing the one surface and comprises a first resonance group including an input groove facing the input terminal and a plurality of resonance grooves and a second resonance group including an output groove facing the output terminal and a plurality of resonance grooves; a plurality of through portions positioned between the resonance grooves forming each of the first resonance group and the second resonance group; a coupling unit positioned between a resonance groove furthest from the input groove of the first resonance group and a resonance groove furthest from the output groove of the second resonance group; and a blocking unit which is positioned between the first resonance group and the second resonance group and includes a plurality of blocking holes arranged in one direction, wherein the input and output terminals include: a recessed terminal portion that is electrically spaced apart from the conductive coating layer, and is coated with a metal material in a recessed groove and the periphery thereof; and a protruding line protruding from the recessed terminal portion.
Inventors:
YU JI MAN (KR)
KIM DUCK HAN (KR)
JANG DAE HOON (KR)
KIM DUCK HAN (KR)
JANG DAE HOON (KR)
Application Number:
PCT/KR2020/010748
Publication Date:
December 23, 2021
Filing Date:
August 13, 2020
Export Citation:
Assignee:
PARTRON CO LTD (KR)
International Classes:
H01P1/207; H01P1/162; H01P1/213
Foreign References:
| KR102085921B1 | 2020-03-06 | |||
| JP2016171557A | 2016-09-23 | |||
| KR20180072977A | 2018-07-02 | |||
| US20150077198A1 | 2015-03-19 | |||
| US20160380322A1 | 2016-12-29 |
Attorney, Agent or Firm:
E-BIRD INTERNATIONAL IP LAW FIRM (KR)
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