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过模弯曲圆波导模式耦合设计

Keywords: 高功率微波弯曲波导模式耦合

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Abstract:

基于耦合波理论,波导轴线采用常规圆弧弯曲和改进的正弦弯曲结构,对TE01-TM11模式变换器进行全面优化分析,计算中考虑了多模、反向波、金属壁所带来的欧姆损耗以及相位重匹配等因素。以正弦弯曲设计的Ka波段TE04—TM11模式变换器的转换效率达到99%,带宽超过32%,并得出常弯曲结构中波导半径、波导曲率、变换器长度和转换效率之间的关系。

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