多层媒质中电磁波反射与透射的FDTD研究  

Research into Reflection and Transmission of Electromagnetic Wave in Multi-Level Medium by FDTD Method

作　　者：周珩[1] 

机构地区：[1]南京工程学院通信工程学院,江苏南京211167

出　　处：《南京工程学院学报（自然科学版）》2011年第2期11-16,共6页Journal of Nanjing Institute of Technology(Natural Science Edition)

基　　金：南京工程学院校青年科研基金项目(QKJC2010003)

摘　　要：以时域有限差分法(FDTD)方法为工具,研究了电磁波在多层媒质中的反射与透射情况.为验证该方法的有效性,给出了三层媒质的反射与透射系数,而FDTD法的计算结果与之相符较好.由于FDTD法模拟了波的自然传播情况,因此在处理多层复杂媒质的反射与透射问题以及显示全空间的场强分布方面,相对解析方法有着巨大的优势.The reflection and transmission of electromagnetic wave in multi-level medium are researched by adopting finite-difference time-domain （FDTD） method. To validate the method, the reflection and transmission coefficients of three-level medium are suggested and the results of the two methods are highly consistent. In comparison with analytical method, FDTD method is highly advantageous in terms of dealing with the reflection and transmission problems with muhi-level complicated mediums, and displaying distribution of electric field of whole space.

关 键 词：时域有限差分法 多层媒质 反射 透射 

分 类 号：TM15[电气工程—电工理论与新技术]