任意截面波导的小波矩量法分析  

Analysis for Guides with Arbitrary Cross-Section by Using Wavelet-MOM

作　　者：程银琴[1] 许福永[2] 李国剑[2] 彭宏[2] 

机构地区：[1]西北民族大学计算机科学与信息工程学院,兰州730030 [2]兰州大学信息科学与工程学院,兰州730000

出　　处：《微波学报》2006年第6期27-29,共3页Journal of Microwaves

摘　　要：用离散小波矩量法推导出了任意截面波导的特征值方程,并以常见规则波导为例,对其截止波数进行数值计算,所得结果与理论值吻合良好,从而使小波矩量法求解波导问题的可行性和有效性得以验证;文中分别用矩量法和小波矩量法对矩形波导主模的截止波长进行计算,通过对比其运算时间和收敛速度,表明在保证精度的前提下,小波矩量法能有效提高运算速度。In this paper, the characteristic equation of a waveguide with arbitrary cross-section is deduced by using the discrete wavelet method of moment （DW-MOM）. Through the numerical computation of several regular guides for the cut - off wave numbers, the validity and feasibility of analyzing guide by using this method are verified because the numerical resuits are in good agreement with the theoretical values. In the paper, cut-off wavelength of rectangular guide in the main mode is calculated by using MOM and -MOM respectively, and the corresponding runtime is compared. It shows that W-MOM is very effective in inerea.4ing computation speed with good precision.

关 键 词：任意截面波导 小波矩量法 截止 DAUBECHIES小波 

分 类 号：TM15[电气工程—电工理论与新技术]