摘要
从圆柱坐标系下各向异性媒质中的麦克斯韦方程出发,对对称模的去耦纵向场方程进行变换求解,推导出各向异性媒质填充的圆波导的对称模特征方程。借助于合流超几何函数的渐近展开公式,对对称模的传播常数进行了数值求解。
Beginning with the Maxwell's equations of the anisotropic medium in the circu-lar cylindrical coordinate,this paper obtains the characteristic equation for the symmetricmodes in the circular waveguide filled with the anisotropic material in terms of theconfluent hypergeometric function(CHF).With the help of the asymptotic expansion for theCHF,the simplized characteristic equation for the TM_(on) modes is derived,and some calcula-tion results are given.
出处
《电子科技大学学报》
EI
CAS
CSCD
北大核心
1991年第4期375-379,共5页
Journal of University of Electronic Science and Technology of China
关键词
圆波导
传播
媒质
电磁辐射
anisotropic medium
characteristic equation
confluent hypergeometric function
