| 摘要 |
A mono-block dielectric filter is disclosed. The mono-block dielectric filter of the present invention comprises: a polyhedral-shaped dielectric block forming a body of the mono-block dielectric filter; an external electrode formed on at least one part of sections excluding an upper surface of the dielectric block; at least two resonant holes formed to penetrate a lower surface of the dielectric block from the upper surface thereof; at least one shielding hole penetrating the lower surface of the dielectric block from the upper surface thereof, and formed between the at least two resonant holes; internal electrodes respectively formed on inner walls of the resonant hole and the shielding hole; resonant patterns formed around the resonant hole on the upper surface of the dielectric block, and electrically connected to the internal electrode formed on the inner wall of the resonant hole; shielding patterns formed around the shielding hole on the upper surface of the dielectric block, and electrically connected to the internal electrode formed on the inner wall of the shielding hole; and input/output patterns formed to be spaced from the external electrode, and connected by strip patterns formed on the upper surface of the dielectric block. |
