The Deduction of Double-Layer Material’s Dielectric Constant in High Q Cavity

Abstract:

In this paper, the method applied to test permittivity and permeability of multilayer materials is introduced. On the basis of research from Professor Li En, the algorithm to measure each layer’s permittivity and permeability of a double-layer material is derived by using exact field solution. When the double-layer material of which each layer’s permittivity and permeability are unknown is putted into the High Q Cavity, the every layer’s electromagnetic field distribution in High Q Cavity can be derived by theoretical analysis. According to the electromagnetic field distribution and boundary condition, the algorithm that is used to calculate permittivity and permeability can be derived. In this algorithm, the unknown parameters include resonant frequency of operating mode TE_01p and the quality factor can be obtained by the High Q Cavity. In order to verify the validity of this proposed algorithm, a double-layer material composed of beryllia and quartz is selected.

• Periodical: Key Engineering Materials (Volume 723)
• Pages: 160-165
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.723.160
• Online since: December 2016
• Authors: En Li, Meng Wei Zeng*, Chong Gao, Jin Qiu Xu
• Keywords: Dielectric Constant, Double-Layers Material, Test Algorithm

References

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