Normal modes and quality factors of shielded composite dielectric spherical resonators |
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| Authors: | R A Yadav T K Yadav M K Maurya D P Yadav and N P Singh |
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| Institution: | (1) Department of Electrical Engineering, National Cheng Kung University, 1 University Rd., Tainan, 70101, Taiwan;(2) Department of Electrical Engineering, National United University, No. 1, Lien-Da, Kung-Ching Li,, Miao-Li, 36003, Taiwan; |
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| Abstract: | Electromagnetic field analysis of shielded composite dielectric spherical resonator in which the dielectric sphere is composed
of two concentric spheres with different dielectric materials has been made. Characteristic equations for the TEnmℓ and TMnmℓ modes have been derived. From these characteristic equations, the resonant frequencies and quality factors have been calculated
using numerical method. Computations of the resonant frequencies and quality factors have been made for resonators with parameters
suitable for the optical and microware regions.
In this paper we have presented the analysis and the results obtained from the numerical computations for shielded composite
dielectric spherical resonator in which the dielectric sphere is composed of two concentric spheres with different dielectric
materials. Starting from the Maxwell’s equations for such a resonators have been derived and resonant frequencies and quality
factor’s have been calculated for the TEnmℓ and TMnmℓ modes using numerical method. |
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