曲边域上二维电磁场边值问题的直线法分析  

Extended Method of Lines for 2-D EM Boundary Value Problems with Curved Boundaries

作　　者：许金平[1] 李嗣范[1] 

机构地区：[1]东南大学

出　　处：《电子学报》1990年第4期25-29,共5页Acta Electronica Sinica

基　　金：国家自然科学基金"3毫米波段技术基础研究"重大项目的资助

摘　　要：到目前为止,直线法仅应用于矩形域或复合矩形域上的电磁场边值问题。本文基于复合矩形域上的直线法原理,建立了曲边域上二维电磁场边值问题的直线法模型,并以方—圆过渡波导中主模的截止波长和矩形波导E面拐角的等效电路参量的计算为例验证了该模型的准确性,同时体现出该方法公式推导简单,计算量小的优点。So far the application of method of lines is restricted to electromagnetic boundary value problems (EM BVPs) in rectangular or compound rectangular regions with straight line boundaries.In this paper, a model of method of lines for 2-D EM BVPs defined in regions with curved boundaries is established based on the same method for EM BVPs in compound rectangular regions.The cut-off wavelengths of dominant mode in rectangular-to-circular waveguide transition and the equivalent circuit parameters of rectangular waveguide E-plane bends are calculated.The method is verified by the obtained numerical results.It is shown that the method possesses some advantages such as easy formulation and less computation time.

关 键 词：二维 电磁场 边值 直线法 分析 

分 类 号：TM15[电气工程—电工理论与新技术]