Title :
An improved FDTD method for analysis of higher order modes high Q dielectric resonators
Author :
Chi Wang ; Hui-Wen Yao ; Kawthar, A.Z.
Author_Institution :
Dept. of Electr. Eng., Maryland Univ., College Park, MD, USA
Abstract :
An improved two dimensional grid finite difference time domain method for efficient analysis of the axial symmetry cylindrical structures, excited with non-axially symmetric modes, is presented. By fixing the number of cycles of the azimuthal variations, the fields of higher order hybrid (HE/sub n/) modes can be easily obtained. The method is verified by comparison with results obtained by other methods. The resonant frequencies and unloaded Q of several resonators and support configurations are presented.
Keywords :
Q-factor; dielectric resonators; eigenvalues and eigenfunctions; electromagnetic wave scattering; finite difference time-domain analysis; waveguide theory; FDTD method; axial symmetry cylindrical structures; azimuthal variations; higher order modes high Q dielectric resonators; hybrid modes; nonaxially symmetric modes; resonant frequencies; two dimensional grid finite difference time domain method; unloaded Q; Art; Dielectrics; Finite difference methods;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1995. AP-S. Digest
Conference_Location :
Newport Beach, CA, USA
Print_ISBN :
0-7803-2719-5
DOI :
10.1109/APS.1995.530004
