强激光与粒子束, 2013, 25 (11): 2954, 网络出版: 2013-11-14   

0.22 THz折叠波导行波管初步实验研究

Initial experimental study on 0.22 THz folded waveguide TWT
徐翱 1,2,*周泉丰 1,2阎磊 1,2陈洪斌 1,2
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 621900
2 中国工程物理研究院 太赫兹中心, 四川 绵阳 621900
摘要
探索性试验了多种微加工技术加工设计频率0.22 THz的折叠波导慢波结构,最终选择了微铣削工艺进行加工,并测试了微铣削工艺加工的WR4标准直波导的损耗特性,得到了0.22 THz电磁波在无氧铜中传播时材料的相对电导率约为3.2×107 S/m。以此为基础设计和制得了国内第一支0.22 THz折叠波导行波管,经过测试和标定得到输出功率大于100 mW,带宽3.5 GHz的初步实验结果。
Abstract
Several micro-machinings were used to manufacture 0.22 THz folded waveguide slow wave structure. In these micro-machinings, micro-milling was most suitable for manufacturing 0.22 THz folded waveguide slow wave structure now. And the loss of WR4 waveguide manufactured by micro-milling was tested. The relative conductivity of 3.2×107 S/m was obtained when electromagnetic wave of 0.22 THz propagated in oxygen-free copper waveguide. Finally, a 0.22 THz folded waveguide TWT was developed and experimented with output power greater than 100 mW and 3 dB bandwidth of 3.5 GHz.
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徐翱, 周泉丰, 阎磊, 陈洪斌. 0.22 THz折叠波导行波管初步实验研究[J]. 强激光与粒子束, 2013, 25(11): 2954. Xu Ao, Zhou Quanfeng, Yan Lei, Chen Hongbin. Initial experimental study on 0.22 THz folded waveguide TWT[J]. High Power Laser and Particle Beams, 2013, 25(11): 2954.

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