US 11,955,680 B2
Waveguide filter
Nam Shin Park, Hwaseong-si (KR); and Yeon Ho Shin, Yongin-si (KR)
Assigned to KMW INC., Hwaseong-si (KR)
Filed by KMW INC., Hwaseong-si (KR)
Filed on Jul. 8, 2021, as Appl. No. 17/369,967.
Application 17/369,967 is a continuation of application No. PCT/KR2020/000174, filed on Jan. 6, 2020.
Claims priority of application No. 10-2019-0002388 (KR), filed on Jan. 8, 2019; and application No. 10-2019-0178270 (KR), filed on Dec. 30, 2019.
Prior Publication US 2021/0336313 A1, Oct. 28, 2021
Int. Cl. H01P 1/20 (2006.01); H01P 7/00 (2006.01)
CPC H01P 1/20 (2013.01) [H01P 7/00 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A waveguide filter comprising:
a housing configured to provide a plurality of resonance blocks, wherein the housing comprises an upper face and a lower face;
a plurality of resonators each of which is formed by a resonator post installed on a respective one of the plurality of resonance blocks;
a plurality of partitions each of which is formed on a boundary of two adjacent resonance blocks of the plurality of resonance blocks and configured to divide the two adjacent resonance blocks; and
a notch post installed adjacent to the plurality of resonators and configured to form cross coupling between the plurality of resonators,
wherein the notch post is subjected to a change in intensity of the cross coupling between the plurality of resonators depending on a position or a form thereof,
the notch post comprises an upper notch post attached to the upper face of the housing and a lower notch post attached to the lower face of the housing, and the upper notch post and the lower notch post is spaced apart from each other.