螺旋波导TE_(m1)-TE_(11)模式转换器的设计  

Design of helical waveguide E_(m1)-TE_(11) mode converters

作　　者：孙旭[1] 赵青[1] 

机构地区：[1]电子科技大学高能电子学研究所,成都610054

出　　处：《强激光与粒子束》2007年第10期1685-1688,共4页High Power Laser and Particle Beams

基　　金：大功率微波电真空器件技术国家级重点实验室基金资助课题(NKLC001-063)

摘　　要：基于耦合波理论,对螺旋波导(蛇形线微扰)94 GHz、6周期TE01-TE11模式转换器和10.24GHz4、周期TE31-TE11模式转换器进行了设计和数值分析。通过解耦合波方程得出模式转换器中各模式成分的比例关系,并对转换器的参数做进一步修正,然后利用电磁仿真软件进行模拟。两种转换器在中心频率处的模拟转换效率均达到98%以上,95%以上带宽超过2 GHz,仿真结果与理论分析吻合得较好。Based on the coupled wave theory, the helical waveguide（serpentine-type） TEm1-TE11 mode converter was studied. A 94 GHz six-period TE01-TE11 mode converter was designed and numerically analysed and simulated. A 10.24 GHz four-period TE31TE11 mode converter was analysed and simulated. The ratio of mode constituents in the mode converter was obtained by solving coupled wave equation, which was employed to modify the structure parameters. The convert efficiency of these two devices reached 98% at center frequency and the bandwith of more than 95% exceeded 2 GHz. The simulation results agree well with the theoretical ones.

关 键 词：高功率微波 模式转换器 螺旋波导 耦合波理论 转换带宽 

分 类 号：TN811[电子电信—信息与通信工程] TN814