手性导电复合材料屏蔽效能的数值研究

Numerical Simulation about Electromagnetic Shielding Efficiency of Electrically Conductive Chiral Materials

利用建立在单层无限大手性屏蔽体模型基础上的电磁屏蔽公式，将电导率的贡献等效为介电常数虚部的一部分，通过数值分析方法研究了手性参数对导电复合材料电磁屏蔽效能的影响规律，并细化研究了该参数对反射衰减、吸收衰减和多次反射衰减的影响。数值分析发现，屏蔽效能对手性参数、电导率的变化比较敏感。

On the basis of shielding efficiency calculation formula of plat chiral shielding media under free-boundary factor, seeming conductivity as a part of imaginary electric inductivity, numerical analysis of the relation between electromagnetic shiel- ding efficiency and chiral parameter, the result of numerical simulation to the reflection, absorption effect and multiple reflection of electromagnetic shielding efficiency and chiral parameter are obtained, the results indicate that electromagnetic shielding efficiency of the composites is sensitive to changes of conductivity and chiral parameter.