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公开(公告)号：US20230420816A1
公开(公告)日：2023-12-28
申请号：US18244319
申请日：2023-09-11
Applicant: KMW INC.
Inventor： Jae Hong KIM , Jong Hyeok PARK , Yeon Ho SHIN , Hoon KIM
CPC classification number: H01P1/2002 , H01P1/2084
Abstract: A ceramic waveguide filter is disclosed. According to at least one embodiment of the present disclosure, a ceramic waveguide filter forming a plurality of resonant blocks including a ceramic dielectric is provided, including an input end and an output end implemented as grooves having a predetermined depth on an outer surface of the ceramic waveguide filter, a plurality of resonators implemented as grooves having a predetermined depth on an outer surface of each of the plurality of resonant blocks, and at least one or more ultra-short delay adjusters adjacent to at least one of the input end and the output end, and implemented as one or more grooves having a predetermined depth on the outer surface of the ceramic waveguide filter.
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公开(公告)号：US20230261353A1
公开(公告)日：2023-08-17
申请号：US18138079
申请日：2023-04-23
Applicant: KMW INC.
Inventor： Nam Shin PARK , Jae Hong KIM , Jong Hyeok PARK , Yeon Ho SHIN , Hoon KIM
CPC classification number: H01P1/2002 , H01Q9/0485
Abstract: The present disclosure relates to a ceramic waveguide filter for an antenna, which, in particular, includes a housing including a plurality of resonance blocks which are prepared from a dielectric having a predetermined dielectric constant, and some of which are partitioned by an inner partition wall; a plurality of resonators, each resonator being caused to serve as a single resonator by a plurality of resonator posts respectively provided in the plurality of resonance blocks included in the housing; and an input porthole to which an input port is connected to input a signal to any one of the plurality of resonators, and an output porthole to which an output port is connected to output a signal from any one of the plurality of resonators, Since either the input porthole or the output porthole is provided with a notch structure bar integrally formed in the housing, which extends towards the resonator post skipping from the adjacent resonator post among the plurality of resonator posts, advantageously the notch design of the passband can be performed with easy.
