The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 06, 2026

Filed:

Apr. 23, 2023
Applicant:

Kmw Inc., Hwaseong-si, KR;

Inventors:

Nam Shin Park, Hwaseong-si, KR;

Jae Hong Kim, Yongin-si, KR;

Jong Hyeok Park, Osan-si, KR;

Yeon Ho Shin, Yongin-si, KR;

Hoon Kim, Osan-si, KR;

Assignee:

KMW INC., Hwaseong-si, KR;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01P 1/20 (2006.01); H01P 1/208 (2006.01); H01Q 9/04 (2006.01);
U.S. Cl.
CPC ...
H01P 1/2002 (2013.01); H01P 1/2088 (2013.01); H01Q 9/0485 (2013.01);
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.


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