| 摘要 |
A filter comprises a plurality of resonators and a transverse layer having an area which is overlapped with at least three resonators of the plurality of resonators, wherein the plurality of resonators are individually formed of a dielectric substance and comprise a body formed with a through hole in one direction, and a conductive film which is joined to the surface of at least one side, among the surfaces of both sides in the longitudinal direction of the body, and to the wall surface of the through hole. |
