US 12,230,852 B2
Waveguide filter
Yeon Ho Shin, Yongin-si (KR); and Kwon Won Lee, Hwaseong-si (KR)
Assigned to KMW INC., Hwaseong-si (KR)
Filed by KMW INC., Hwaseong-si (KR)
Filed on Feb. 21, 2022, as Appl. No. 17/676,247.
Application 17/676,247 is a continuation of application No. PCT/KR2020/008077, filed on Jun. 22, 2020.
Claims priority of application No. 10-2019-0107581 (KR), filed on Aug. 30, 2019; and application No. 10-2020-0072750 (KR), filed on Jun. 16, 2020.
Prior Publication US 2022/0173487 A1, Jun. 2, 2022
Int. Cl. H01P 1/207 (2006.01); H01P 5/02 (2006.01); H03H 7/01 (2006.01)
CPC H01P 1/207 (2013.01) [H01P 5/02 (2013.01); H03H 7/01 (2013.01); H03H 2007/013 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A waveguide filter comprising:
a filter housing having a plurality of resonance blocks;
a plurality of resonators comprising resonator posts respectively formed on the resonance blocks provided on the filter housing; and
a resonator tunnel provided in the filter housing and configured to connect first and second resonator posts, among the plurality of resonator posts, wherein the first resonator post is provided on one surface and the second resonator post is provided on the other surface of the filter housing so as to be reversed with respect to each other,
wherein the first and second resonator posts connected by the resonator tunnel are disposed to be reversed with respect to each other to enable cross-coupling.