CAVITY-TYPE RADIO FREQUENCY FILTER

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 (KR)
JANG SUNG-HO (KR)

Application Number:

PCT/KR2018/005080

Publication Date:

November 08, 2018

Filing Date:

May 02, 2018

Export Citation:

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Assignee:

KMW INC (KR)

International Classes:

H01P1/207; H01P7/06; H01P11/00

Foreign References:

KR20150118768A	2015-10-23
JP2003307208A	2003-10-31
KR20100104679A	2010-09-29
JPH098512A	1997-01-10
KR20160136783A	2016-11-30
KR20010107673A	2001-12-07
KR20100102378A	2010-09-24
KR20040100084A	2004-12-02
KR20140026235A	2014-03-05
KR20140026235A	2014-03-05

Other References: