同轴腔特征方程根值的求解方法  

Methods for Deriving the Roots of the Characteristic Equation of a Coaxial Cavity

作　　者：马正军[1] 

机构地区：[1]国营第七七八厂,甘肃平凉744000

出　　处：《真空电子技术》2012年第5期5-11,共7页Vacuum Electronics

摘　　要：应用VB程序,选择简单直观的对分法对同轴腔特征方程根值进行编程求解,对设计过程进行了详细说明。应用该程序可以获得任意直径比下所有模式的精确结果,避开在同轴磁控管的设计时查表的烦琐和不精确。在程序设计中,对求解时应用到的贝塞尔函数也进行了详尽分析,同时也给出了贝塞尔函数的编程求解方法及VB程序源代码。Simple intuitive method of bisection for deriving the roots of the characteristic equation of a coaxial cavity is adopted by VB program.The programming process is described in detail.The exact result for all modes of any diameter ratio can be achieved from this program instead of table finding method.The Bessel functions are also analyzed and solved by VB coding in the programing process.

关 键 词：同轴腔 特征方程根值 同轴磁控管 对分法 贝塞尔函数 

分 类 号：TN123[电子电信—物理电子学]