DIELECTRIC FILTER

摘要

PROBLEM TO BE SOLVED: To provide a dielectric filter capable of canceling unwanted filter characteristics in the resonance frequency of a high-order TEM mode. SOLUTION: The dielectric filter is composed of two coaxial resonators with one end face short-circuited while forming first and second conductor layers by covering outer and inner peripheral surfaces with conductive members. The coaxial resonators 90 and 100 have mutually different resonator lengths. The coaxial resonator 100 has the same basic resonance frequency as the other coaxial resonator 90 with a resonance frequency correcting capacitor 101 connected to the second conductor layer.