| 摘要 |
PROBLEM TO BE SOLVED: To provide a dielectric resonator filter having excellent characteristics such as low loss and steep pass band, by suppressing disturbance in the characteristics in the pass band. SOLUTION: The dielectric resonator filter comprises a dielectric resonator 11, a casing 20 having a casing body 21, a casing cover 22 and a partition 23, inter-stage coupling adjuster windows 24, inter-stage coupling adjuster bolts 31, an input terminal 41, an output terminal 42, an input coupling probe 51, and an output coupling probe 52. Resonance frequency adjustment members 61, into which a conductor plate and a bolt are combined, are mounted on the casing cover 22. Means for suppressing the undesired mode, which comprises a ring or a bolt located in undesired mode exciting space, is mounted on resonance frequency adjusting members 61a and 61f.
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