Axisymmetric modes of cylindrical resonators with cascaded inhomogeneous dielectrics
Journal
IEEE Transactions on Microwave Theory and Techniques
Journal Volume
44
Journal Issue
9
Pages
1606-1610
Date Issued
1996-09
Author(s)
Abstract
A generic numerical scheme is developed to calculate the resonant frequency of axisymmetric modes in an inhomogeneous cylindrical dielectric resonator. The resonator consists of sections of cylindrically stratified dielectrics within a cylindrical waveguide. In each section, the TM/sub 0m/ and TE/sub 0m/ waveguide modes are solved by expanding the H/sub /spl phi// and E/sub /spl phi// components in terms of the eigenmodes in an empty waveguide. The fields in each section are then expanded in terms of these TM/sub 0m/ and TE/sub 0m/ modes. The transverse resonance technique is then applied to obtain the resonant frequencies. Comparison with literatures validates the effectiveness of this approach. Results with continuous dielectric profiles are also obtained.
SDGs
Type
journal article