Abstract

본 논문에서는 적층형 유전체 도파관 필터를 제안한다. 횡 방향으로 공진부가 연결되는 유전체 도파관 필터는 단수가 증가함에 따라 길이가 증가하여 제작시 어려움이 따른다. 제안된 구조는 세라믹을 이용하여 일부 공진부를 적층 형태로 변경하여 설계 제작한 것이다. 상대 유전율이 22인 세라믹을 이용하여 기존의 도파관 필터보다 25 % 정도 크기가 줄었으며, SMD 형태로 PCB에 표면 실장이 가능하도록 하였다. Layered-type dielectric waveguide filters were designed. As the order of layers increased the fabrication process for dielectric waveguide filters which the resonator parts were connected by the lateral direction has many difficulties. The proposed structure in this report was designed based on the layered-type for the some parts of resonators. The size of layered-type dielectric waveguide filters installed on the PCB surface were reduced at 25% as compared with the usual waveguide filters by using a relative dielectric constant 22.

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