A Study on Design of a Bandpass Filter Which Consists of Dielectric Disk Resonators Arranged Coaxicially

摘要

A design method for a millimeter-wave bandpass filter using dielectric disk resonators is discussed. The coupling coefficients between the dielectric resonators should be evaluated precisely to obtain a desired filter characteristic. A couple of disk resonators previously has been used to calculate the coupling coefficients even though the multi-stage filter consists of more than 3 disk resonators. In this study, all of the disks is considered in the coupled characteristic analysis. The presented method is applied to a 3-stages filter design and then it is shown that the designing accuracy on the filter bandwidth is improved.