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1. (WO2018203655) CAVITY-TYPE RADIO FREQUENCY FILTER

Pub. No.:    WO/2018/203655    International Application No.:    PCT/KR2018/005080
Publication Date: Fri Nov 09 00:59:59 CET 2018 International Filing Date: Thu May 03 01:59:59 CEST 2018
IPC: H01P 1/207
H01P 11/00
H01P 7/06
Applicants: KMW INC.
주식회사 케이엠더블유
Inventors: KIM, Joung-Hoe
김정회
JANG, Sung-Ho
장성호
Title: CAVITY-TYPE RADIO FREQUENCY FILTER
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.