DIELECTRIC RESONATOR AND DIELECTRIC FILTER

摘要

The present invention provides a dielectric filter, including a body part, a cover, and a dielectric resonator. The body part includes a first port and a second port; a cavity is further formed in the body part, and a support kit is disposed at a bottom of the cavity. The dielectric resonator is contained in the cavity and is disposed on the support kit; the dielectric resonator includes a dielectric body and at least two adjusting holes disposed on the dielectric body. The dielectric body includes a top plane and a bottom plane, where the at least two adjusting holes penetrate through the top plane and the bottom plane of the dielectric body. The cover is corresponding to the top plane of the dielectric body. The dielectric body has a first mirror plane and a second mirror plane, where the second mirror plane and the first mirror plane are perpendicular to each other and penetrate through the top plane and the bottom plane of the dielectric body. A first adjusting hole and a second adjusting hole are not mirror symmetric relative to the first mirror plane or the second mirror plane. In the present invention, a frequency and bandwidth of the dielectric filter are adjusted on a same plane, and adjustment ranges of the frequency and the bandwidth of the dielectric filter are extended. The present invention further provides a dielectric resonator.