| 共焦波导回旋行波管准光注入结构设计 |
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| 引用本文： | 胡鹏,蔡金赤,蒋艺,陈洪斌,孟凡宝.共焦波导回旋行波管准光注入结构设计[J].强激光与粒子束,2013,25(5):1337-1340. |
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| 作者姓名： | 胡鹏 蔡金赤 蒋艺 陈洪斌 孟凡宝 |
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| 作者单位： | 1.中国工程物理研究院 应用电子学研究所, 四川 绵阳 621 900; |
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| 摘 要： | 为了解决共焦波导回旋行波管现有输入结构带宽较窄的问题，基于高斯变换，为0.4 THz共焦波导回旋行波管设计了准光注入结构，注入模式为HE06模。该结构由波纹波导模式变换器、高斯变换镜及接收天线构成。对整个注入结构进行了三维电磁仿真，结果表明，在回旋行波管8 GHz的工作带宽内，注入效率大于50%，最大注入效率68%。
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| 关 键 词： | 太赫兹 回旋行波管 共焦波导结构 高斯变换 准光注入结构 |
| 收稿时间： | 2012-08-31 |
Design of quasi-optical input structure for confocal gyro-TWT |
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| Affiliation: | 1.Institute of Applied Electronics,CAEP,P.O.Box 919-1015,Mianyang 621900,China;2.Graduate School of China Academy of Engineering Physics,Mianyang 621900,China |
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| Abstract: | The existing input structure for confocal waveguide is narrow-banded. Thus a quasi-optical input structure for 0.4 THz confocal waveguide gyro-TWT is designed based on Gaussian transformation, and the input mode is HE06 mode. This structure is composed of a corrugated waveguide mode converter, Gaussian transformation mirrors and a receiving antenna. The structure is validated through 3D electromagnetic simulation. The simulation result indicates that, the input efficiency exceeds 50% in the 8 GHz working band of the gyro-TWT and the highest efficiency is 68%. |
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