摘要
本文用多模网络理论与严格场匹配相结合的方法,对波导E面分支定向耦合器作了分析。在分析过程中将电磁场分量用各次LSE^x模叠加来展开,而不是用TE模和TM模来展开。同时通过模匹配将场的问题转化成网络的问题来处理。这样本文方法在不影响计算精度的情况下,具有运算量小,清晰简捷的优点。
The E-plane waveguide branch directional couplers are analysed by a method which combines the multi-mode network theory with rigorious mode matching approach. The electromagnetic field components are expanded by the superposition of LSEx modes rather than TE and TM modes in the mode matching procedure. Meanwhile, the electromagnetic problem is transferred into the network problem through the mode matching treatment. It is shown that the present method has the advantages of simplicity and less computation with unaffecting the accuracy of the calculation.
基金
国家自然科学基金
国家教委科技基金
关键词
波导E面分支
定向耦合器
模匹配
微波元件
E-plane waveguide branch, Directional coupler, Mode matching, Multimode network theory
