KU waveband dielectric resonator with high Q value

The invention relates to a KU waveband dielectric resonator with a high Q value. The KU waveband dielectric resonator comprises a dielectric resonance column, a base and a cavity, wherein the dielectric resonance column is arranged at the upper end of the cavity through the base; the base comprises a bottom flat plate and a stand column arranged in the middle of the bottom flat plate, and the base is fixed to the cavity due to the fact that a bolt penetrates through a bolt hole; the middle of the dielectric resonance column is provided with a vertical through installation hole, the bottom end of the installation hole protrudes inwards in the radial direction to form an installation plate, and the bolt penetrates through the installation plate so as to fix the dielectric resonance column to the base; a plurality of upper circular grooves are formed in the upper end face of the bottom flat plate, lower circular grooves are formed in the bottom end face of the dielectric resonance column, a shock-reducing rubber ring is arranged in each upper circular groove, the diameter of each shock-reducing rubber ring is slightly larger than that of the corresponding circular groove, and the dielectric resonance column is in elastic fit with the bottom flat plate through the shock-reducing rubber rings. The stability of the dielectric resonance column on the cavity is improved, so the Q value of the resonator is increased, and the resonator has better performance and good shock and impact resistance.