Dielectric resonator filter having a tunable element eccentrically located and a method of production thereof

A radio-frequency filter arrangement comprising:

• at least one filter which has a number of cavities which are coupled to one another for radio-frequency purposes, a respective ring-like dielectric resonator element which is arranged in a fixed position in each of the cavities, each corresponding ring-like dielectric resonator element having therein a respective eccentric through-hole, an axis of the respective eccentric through-hole is offset from an axis of the corresponding ring-like dielectric resonator element, and
• a respective dielectric body having the same thickness as a thickness of the corresponding ring-like dielectric resonator element, disposed in each respective eccentric through-hole so as to be rotatable about the axis of the respective eccentric through-hole and so that a position of the respective dielectric body relative to the corresponding dielectric resonator element can be varied in order to tune the frequency of the at least one filter.