弯曲波导广义散射参数的快速精确计算  

A Fast and Accurate Method for Calculating the Generalized S Parameter of Curved Waveguide

作　　者：汪杰[1] 洪伟[1] 

机构地区：[1]东南大学毫米波国家重点实验室,南京210096

出　　处：《微波学报》2000年第2期116-121,共6页Journal of Microwaves

基　　金：国家杰出青年基金!(6962 51 0 2 )

摘　　要：本文首次用模式匹配、坐标变换和级联的方法计算了 E面和 H面弯波导的广义散射参数。将整个弯波导分成若干小段 ,每一小段近似为一斜口面的直波导 ,将场分量进行坐标变换后在斜口面上匹配 ,获得每一小段单元的广义散射参数矩阵后级联得整个弯波导的广义散射参数矩阵。只要分段数足够多就能达到所要求的精度 ,文中分析了分段数和精度的关系。本文计算结果与其它文献的结果比较吻合 ,从而验证了方法的正确性和有效性。In this paper, the generalized S parameter m at rices of rectangular waveguide E and H bends are calculated based on a mixed technique of mode matching, coordinate transform and cascading. The whole curve d waveguide is first divided into pieces, and every piece is approximated by a s traight waveguide with slant ports, then the generalized S parameter matrix of each piece can be obtained by matching the transformed field components at the s lant ports, finally the generalized S parameter matrix is resulted by cascading all the pieces. If every piece is small enough, accurate results can be achieve d, and relation between the number of divisions and accuracy is analyzed. Good a greements between our results and that from references verified the validity of this technique.

关 键 词：模式匹配 弯波导 广义散射参数 

分 类 号：TN25[电子电信—物理电子学]