Numerical Analysis of Impedance of Asymmetric TEM Cell Filled With Inhomogeneous, Isotropic Dielectric
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Numerical Analysis of Impedance of Asymmetric TEM Cell Filled With Inhomogeneous, Isotropic Dielectric摘要
This paper investigates the effect of vertically offset septum on characteristic impedance (Z0) of transverse electromagnetic (TEM) cell. The Septum is considered to be of finite thickness for the analysis. Impedance analysis is done initially for symmetric TEM cell with homogenous dielectric using Finite Element Method (FEM) and the numerical results included are compared with results obtained by other authors. A good agreement is established. Numerical analysis using FEM is also done for Z0 of Asymmetric TEM cell with septum of finite thickness filled with inhomogeneous dielectric. The effect of inhomogenity and offset of septum on Z0 is discussed. Variation of Z0 with width of the septum is represented graphically
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