圆形槽波导的一种简单分析方法  

A Simple Analysis of Circular Groove Waveguides

作　　者：王善进[1] 李秀平[1] 陈琼[1] 刘慧杰[1] 

机构地区：[1]东莞理工学院电子工程学院,广东东莞523808

出　　处：《电子器件》2011年第3期252-254,共3页Chinese Journal of Electron Devices

基　　金：东莞市高等院校科研机构科技计划项目(2008108101009)

摘　　要：把圆形槽波导等效成横向传输线网络,用不同的均匀传输线等效圆形槽及两边的平行平板区域,根据横向谐振条件,利用Runge-Kutta数值计算方法,分析了波导的色散关系。得到了归一化截止波长λc/2a与归一化波导尺寸2c/2a,以及传播常数β与频率的关系曲线。该分析过程简单明了,数值分析的结果与相关文献的结论吻合较好,表明这是一种分析槽波导有效的简单方法。The transverse equivalent networks for circular groove waveguides are presented,the circular and parallel-plate waveguide regions of the cross section are represented by different uniform lines,based on the transverse resonance condition,the dispersion equation of circular groove waveguides is derived by applying the Runge-Kutta numerical technique.The relation between normalized cut-off wavelength λc/2a and normalized plate spacing 2c/2a is presented,and the variation of the propagation constants of the fundamental mode with respect to frequency is obtained.The approach presented here is simple and clear.The agreement appears from the comparisons between the numerical results and the results of the references,which show that this approach is a permitted method to analyze circular groove guides.

关 键 词：圆形槽波导 横向谐振条件 Runge-Kutta数值计算法 色散关系 

分 类 号：TN811.7[电子电信—信息与通信工程]