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Patent Searching and Data


Title:
CAVITY-TYPE RADIO FREQUENCY FILTER
Document Type and Number:
WIPO Patent Application WO/2018/203655
Kind Code:
A1
Abstract:
The present invention relates to a radio frequency filter having a cavity structure, comprising: an enclosure, which has a hollow inner portion for including a cavity and has an open surface on one side thereof; a resonance element positioned in the hollow portion of the enclosure; a cover, which includes a screw hole of a preset diameter at a position corresponding to the resonance element and seals the open surface of the enclosure; a frequency tuning screw screw-coupled to the screw hole of the cover and having, in at least a portion of the upper end thereof, a catching protrusion, which has a structure partially protruding to the outside; and an elastic fixing member, which is coupled between the frequency tuning screw and the cover in a structure of being caught on the catching protrusion of the frequency tuning screw, has a ring-shaped thin plate having a hollow portion, has a tapered shape having an incline increasing toward the hollow portion from the edge thereof, and has a preset elastic force.

Inventors:
KIM, Joung-Hoe (#2630-901, Dongtan2 LH 26-danji APT. 19, Dongtan-daero 9-gil,Hwaseong-si, Gyeonggi-do, 18488, KR)
JANG, Sung-Ho (#606-1403, Gangnammaeul 6-danji Jayeon-n I-won APT. 42, Gangnamdong-ro, Giheung-gu,Yongin-si, Gyeonggi-do, 16978, KR)
Application Number:
KR2018/005080
Publication Date:
November 08, 2018
Filing Date:
May 02, 2018
Export Citation:
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Assignee:
KMW INC. (183-6, Yeongcheon-ro Dongtan-myeon,Hwaseong-si, Gyeonggi-do, 18462, KR)
International Classes:
H01P1/207; H01P7/06; H01P11/00
Foreign References:
KR20150118768A2015-10-23
JP2003307208A2003-10-31
KR20100104679A2010-09-29
JPH098512A1997-01-10
KR20160136783A2016-11-30
KR20010107673A
KR20100102378A2010-09-24
Attorney, Agent or Firm:
LEE, Keon-Joo et al. (Mihwa Bldg, 16 Daehak-ro 9-gil,Chongro-gu, Seoul, 03079, KR)
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