不同本构关系下手征媒质的吸波特性  

Microwave Absorbing Characteristics of Differential Constitutive Relations

作　　者：肖中银[1] 王子华[1] 徐得名[1] 

机构地区：[1]上海大学通信与信息工程学院,上海200072

出　　处：《上海大学学报（自然科学版）》2005年第1期28-31,共4页Journal of Shanghai University:Natural Science Edition

基　　金：国防科工委资助项目 ;上海市重点学科建设资助项目 (2 0 0 1 44)

摘　　要：手征媒质的吸波特性与手征性的关系一直是人们研究的热点.该文用不同的本构关系研究了金属衬底手征涂层的吸波特性,并进行了比较.结果表明,只要手征媒质的宏观电磁参数统一后,就能使用不同的本构关系得到相同的结果,进而揭示本构关系的等效性.数值计算结果表明,在基质中掺加手征体能改变基质的介电常数和磁导率,从而对反射系数产生影响.这些结论对不同观点的统一有一定的意义.It has been argued whether the chiral parameter of chiral media affects microwave absorbing characteristics. The different constitutive relations are used to analyze the reflection problem of a metal-backed chiral layer. Some numerical results are presented. It can be seen that the reflection coefficients are identical with different constitutive relations when the macroscopic parameters are unified. The numerical results show that the permittivity and the permeability of the host are modified when chirality is introduced, which affects the reflection. The conclusion has significance in unifying different viewpoints.

关 键 词：本构关系 基质 手征媒质 反射系数 

分 类 号：TN011[电子电信—物理电子学]