波纹圆波导特征值的渐近解  

Asymptotic Series Solution of the Characteristic Equation of Corrugated Circular Waveguide

作　　者：徐江[1] 王视环[1] 谢继东[1] 

机构地区：[1]南京邮电学院通信工程系,南京210003

出　　处：《微波学报》2005年第5期37-40,共4页Journal of Microwaves

摘　　要：波纹波导的特征方程是一个超越方程,求解的过程相当繁琐,Dragone提出了一种求解波纹圆波导特征方程的方法,本文首次推导了波纹圆波导中HE_(mn)、EH_(mn)和E_(02)模的渐近级数表达式,简化了波纹波导特征方程求解,有利于波纹圆锥喇叭的设计。The characteristic equation of the corrugated wave-guide is a transcendental equation, and it is hard to solve. Dragone have put forward one new method to solve the characteristic equation of the corrugated wave-guide. In this paper we deduce the expression of the modes： HEma, EHma, and E02 ; and get the asymptotic series solution. In this way, we can get the solution more easier, furthermore it is useful for the design of corrugated horn in the antenna system.

关 键 词：波纹波导 特征方程 渐近级数 波纹圆波导 渐近解 特征值 方程求解 级数表达式 超越方程 HEMA 

分 类 号：TN814[电子电信—信息与通信工程]