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物理学报  2013 

Investigation of effective EM parameter based on impedance simulation
基于阻抗模拟的等效电磁参数研究

Keywords: equivalent EM parameter,impedance simulation,effective circuit,mixed medium
等效电磁参数
,阻抗模拟,等效电路,混合介质

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Abstract:

In order to calculate the equivalent EM parameter of mixed medium, in this paper, we proposes a new method of impedance simulation based on an equivalent circuit. First, the relationship between electromagnetic parameters and capacitance, inductance of material is set up, and then the model that can describe real composite accurately is established. The equivalent EM parameter could be obtained by calculating the equivalent impedance of mixed medium. Comparing this method with the classical formulae and finite-difference numerical method, it is proved that it can be used to calculate the equivalent EM parameter of material. In addition, introducing thin films to simulate the factor such as surface effect, the result of calculation would match with experimental results perfectly. This method has more advantages than classical formulae and numerical method.

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