Dual mode medium resonator

The application discloses a dual mode medium resonator, comprising a body prepared by solid state dielectric materials, and an alumina support supported under the body. The surface of the body is covered by a conducting layer; the body is provided with two first through holes of a first diameter and two second through holes of a second diameter, wherein the first diameter is greater than the second diameter; the two first through holes and the two second through holes are alternatively arranged to realize frequencies of 2650 MHz and 2690 MHz; the alumina support is provided with a third through hole communicated with the first through holes and the second through holes along a vertical direction. The dual mode medium resonator is small, and can realize frequencies of 2650 MHz and 2690 MHz.