脊槽波导主模截止波长研究  

Study on Cut-off Wavelength of the Dominant Mode in Ridge-trough Waveguide

作　　者：李锦屏[1] 杜丽霞[1] 

机构地区：[1]兰州交通大学电子与信息工程学院,兰州730070

出　　处：《半导体光电》2011年第1期41-43,共3页Semiconductor Optoelectronics

摘　　要：为了满足微波传输系统性能的某些需求,各种结构形状的新型波导应运而生。采用有限差分法,利用MATLAB计算了脊槽波导中脊和槽的几何尺寸在中间位置连续变化时的主模截止波长,并对计算结果进行了对比分析,得出了主模截止波长随着脊的高度、宽度、槽的宽度等变化而变化的一些相关结论,为设计脊波导器件提供了参数。The influence of the ridge position and dimensions on the cutoff wavelength of the dominant mode in a ridge-trough Waveguide is analyzed by the finite difference method based on MATLAB. The cutoff wavelength can be adjusted by changing the ridge and trough dimensions. The numerical results for different values of ridge position, ridge height and trough width are obtained, which are useful in the design of many microwave components and subsystems.

关 键 词：脊波导 主模 截止波长 有限差分法 

分 类 号：TN256[电子电信—物理电子学]