Dielectric Filter, Transceiver, and Base Station

摘要

Embodiments relate to the field of technologies of components of communications devices, and provide a dielectric filter, which resolves a problem that a solid dielectric filter has a difficulty in implementing capacitive coupling. The dielectric filter includes at least two dielectric resonators, where each of the dielectric resonators includes a body made of a solid-state dielectric material, and an adjusting hole located on a surface of the body. The adjusting hole is a blind hole, configured to adjust a resonance frequency of the dielectric resonator on which the blind hole is located. The bodies of all the dielectric resonators included by the dielectric filter form a body of the dielectric filter.

主权项

1. A dielectric filter comprising:
a plurality of dielectric resonators, each dielectric resonator comprising:
a body made of a solid-state dielectric material, wherein the bodies of all the dielectric resonators of the dielectric filter form a body of the dielectric filter; andan adjusting hole located on a surface of each respective resonator body, the adjusting hole being a blind hole and configured to adjust a resonance frequency of the dielectric resonator on which the blind hole is located; a negative coupling hole located at a position of a surface of the body of the dielectric filter at which two dielectric resonators of the plurality of dielectric resonators are connected, the position at which the negative coupling hole is located being connected to the two dielectric resonators, and the negative coupling hole being a blind hole and configured to implement capacitive coupling between the two dielectric resonators; and a conducting layer covering the surface of the body of the dielectric filter, the conducting layer wholly or partially covering a surface of each of the adjusting holes, and the conducting layer wholly or partially covering a surface of the negative coupling hole.