傅立叶展开-差分法分析多层介质H波导的特性  

Analysis of characteristics of H-waveguide with multilayer dielectric by using Fourier's expansion-differential method

作　　者：曹斌照[1,2] 许福永[2] 崔敬忠[1] 

机构地区：[1]兰州空间技术物理研究所,甘肃兰州730000 [2]兰州大学信息科学与工程学院,甘肃兰州730000

出　　处：《兰州大学学报（自然科学版）》2008年第5期69-73,共5页Journal of Lanzhou University(Natural Sciences)

基　　金：中国第41批博士后基金(20070410576);甘肃省自然科学基金(0710RJZA022)资助．

摘　　要：用已提出的一种新的分析任意截面槽波导和填充非均匀介质的类矩形波导的傅立叶展开—差分法对填充多层介质的H波导进行了分析.通过对填充不同厚度介质的H波导截止波数的计算及与解析法计算结果的对照,验证了该方法的正确性,同时对填充多层介质的H波导的截止特性和色散特性进行了分析.该方法可以便捷地解决H波导在微波毫米波应用中的实际工程问题,其结论对于微波毫米波元器件的设计和应用有着一定的参考价值.The H-waveguide with multilayer dielectric was analyzed by using Fourier＇s expansion-differential method for analyzing groove guide with arbitrary shape and analyzing similar-rectangular guide with nonuniform dielectric. Through calculating and comparing the cut-off wave numbers with theoretical referenced values of the H-waveguide filled with different widths of dielectric, the correctness of the new method was verified, hi addition, the cut-off and dispersion characteristics of H-waveguide with multilayer dielectric were numerically computed and analyzed. It is of important reference value for the design and application of microwave and millimeter wave components.

关 键 词：填充多层介质的H波导 傅立叶展开-差分法 截止特性 色散特性 微波毫米波应用 

分 类 号：TN015[电子电信—物理电子学]