用FDTD法分析各向异性介质填充微带线的截止特性  

FDTD Method Analysis of Cut-off Characteristic of Microstrip Line Filled with Anisotropic Medium

作　　者：王建敏[1] 张莉[2] 

机构地区：[1]云南开放大学中职学院,云南昆明650223 [2]四川文理学院物理与机电工程学院,四川达州635000

出　　处：《四川文理学院学报》2013年第5期18-20,共3页Sichuan University of Arts and Science Journal

摘　　要：给出了用时域有限差分(FDTD)法分析各向异性介质填充波导问题的差分格式,实例计算了各向异性介质填充屏蔽微带线的传输特性,分析了影响特性参数的因素及其变化趋势.This paper presents a difference expression of waveguide filled with anisotropic medium by using finite - difference time - domain （FDTD） method. In order to demonstrate the validity of the method, the microstrip line filled with anisotropic medium is calculated and a comparison is given. The law, the relation of the normalized cut - off wavenumber and the loaded medi- um width in microstrip partially filled with anisotropic medium have been given.

关 键 词：时域有限差分法 各向异性介质 微带线 截止特性 

分 类 号：O48[理学—固体物理]