Some coupling structure of dual mode dielectric resonator and its filter

In this paper, a new type of bandpass filter is designed by using a dual mode coupling dielectric resonator disturbing method. Some types of disturbing method are proposed and compared. The coupling coefficient of a dual-mode dielectric resonator is calculated by the finite difference time-domain method. As a result, the performances of some kinds of coupling structure are compared by simulation using Ansoft HFSS.