Efficient measurement system for complex material parameters of practical anisotropic metamaterial

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Measurement system for tensor type material parameters of the uni-axial anisotropic material by using the reflection and transmission characteristics of electromagnetic waves through the waveguide which partly filled with the medium to be measured has been presented. To estimate the tensor type material parameters of the uni-axial anisotropic material, different two types of partly filled waveguides which have different aperture size but their operating frequency bands of fundamental modes is overlapped are used and by solving the system of the equations obtained from their paired reflection and transmission characteristics, formulas to estimated the components of tensor type material parameters for anisotropic medium. The validity of this method is verified by the comparison with the results obtained by the electromagnetic simulation.