紧凑型宽带TE_(01)-TE_(02)模式转换器  

Compact TE_(01)-TE_(02) mode converters with broadband

作　　者：王强[1,2] 周海京[3] 杨春[1] 李彪[1] 

机构地区：[1]中国工程物理研究院电子工程研究所,四川绵阳621900 [2]清华大学工程物理系,北京100086 [3]北京应用物理与计算数学研究所,北京100094

出　　处：《强激光与粒子束》2013年第2期415-418,共4页High Power Laser and Particle Beams

摘　　要：在传播常数随半径变化的情况下近似分析了两模转换条件,得到了模式转换器的初始结构,然后调用迭代法进行优化,最终能得到结构紧凑、带宽较宽、转换效率高的模式转换器。设计了两周期的Ka波段和一周期的W波段TE01-TE02模式转换器,带宽(转换效率95%以上频带宽度)分别达到2.47,8GHz。CST仿真结果与耦合波仿真程序计算结果吻合较好,验证了该方法的有效性。This paper presents a process of designing compact TE01-TE02 mode converters with broadband. Mode conversion condition are approximately derived while propagation constants vary along axis and initial structure of the mode converters is cal- culated. The initial structure is optimized utilizing iterative method. Two period TE01-TE02 mode converter in Ka band and one period mode converter in W band are designed, and the bandwidths （above 95 % conversion efficiency） reach 2.47 GHz and 8 GHz respectively. CST simulation data agree well with those calculated by coupled mode algorithm for both converters.

关 键 词：过模波导 耦合波 模式转换器 迭代法 

分 类 号：TN811[电子电信—信息与通信工程] TN814