DIELECTRIC RESONATOR DEVICE

摘要

A dielectric resonator device is disclosed in which characteristics of a plane circuit type dielectric resonator device applicable to miniaturization is included; non-loading Q0f a resonator is increased so as to decrease insertion loss in the case of forming a band pass filter, or the like; reduce changes in filter characteristics with respect to changes in structural dimensions of the length of the resonator, the gap between the resonators, or the like; and increase freedom in adjustment of resonant frequency to enhance production efficiency. In this arrangement, on each main surface of a dielectric plate are disposed an electrode having mutually opposing openings, which serve as a rectangular-slot mode dielectric resonator; in which the length of the resonator is longer than the half-wave length in the resonant frequency used so as to resonate in a higher mode.