Title:
CERAMIC WAVEGUIDE FILTER
Document Type and Number:
WIPO Patent Application WO/2020/054964
Kind Code:
A1
Abstract:
The present invention provides a ceramic waveguide filter and a manufacturing method therefor, the ceramic waveguide filter comprising: a plurality of ceramic resonant cavities, each of which is obtained by providing a ceramic block corresponding in size and shape to a signal to be filtered and plating the outer surface of the ceramic block with a metal, except for a predetermined slot region; at least one metal block which has a thickness greater than or equal to a predetermined reference thickness, is implemented in the form of a conductor having a slot formed therethrough, and is disposed and coupled between each of the plurality of ceramic resonant cavities; and input-output interfaces which are inserted into at least two ceramic resonant cavities among the plurality of ceramic resonant cavities to input and output signals therethrough. Therefore, the ceramic waveguide filter and the manufacturing method therefor can prevent generation of parasitic components by inserting at least one coupling metal block having a slot formed therethrough between the plurality of ceramic resonant cavities, and thus can improve the suppression level. In addition, tuning can be easily performed and thus the productivity can be greatly improved.
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Inventors:
CHUN DONG WAN (KR)
Application Number:
PCT/KR2019/009010
Publication Date:
March 19, 2020
Filing Date:
July 22, 2019
Export Citation:
Assignee:
ACE TECH CORP (KR)
International Classes:
H01P1/20; H01P1/207; H01P3/13
Foreign References:
| KR20170033778A | 2017-03-27 | |||
| JP3473124B2 | 2003-12-02 | |||
| JP2002204103A | 2002-07-19 | |||
| EP3364496A1 | 2018-08-22 | |||
| KR20110092886A | 2011-08-18 |
Attorney, Agent or Firm:
MIN, Young Joon (KR)
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