首页 | 本学科首页   官方微博 | 高级检索  
     检索      

0.14THz基模多注折叠波导行波管的理论与模拟研究
引用本文:颜胜美,苏伟,王亚军,徐翱,陈樟,金大志,向伟.0.14THz基模多注折叠波导行波管的理论与模拟研究[J].物理学报,2014,63(23):238404-238404.
作者姓名:颜胜美  苏伟  王亚军  徐翱  陈樟  金大志  向伟
作者单位:中国工程物理研究院电子工程研究所, 绵阳 621900
基金项目:中国工程物理研究院超精密加工技术重点实验室开放基金(批准号:2012CJMZZ00007)资助的课题~~
摘    要:为解决THz行波管工作电流过小、输出功率低等问题,提出了基模多注工作模式的折叠波导行波管.首先,获得了基模多注折叠波导色散特性的等效传输线计算模型,并与数值模拟结果进行了比较;然后,对基模多注折叠波导的传输特性进行了模拟计算;最后,通过模拟和理论计算完成了0.14 THz基模多注折叠波导行波管的注波互作用特性分析.电子注参数为12 m A,15.75 k V时,获得的3 d B带宽为25 GHz(128—153 GHz),最大增益为33.61 d B,最大峰值功率为23 W;电子注参数为30 m A,15.75 k V时,在0.14 THz处获得了38 d B增益,最大脉冲输出功率为63.1 W.对比同条件下基模单注折叠波导行波管,3 d B带宽提升了1倍,0.14 THz处输出功率增大了9.66倍,互作用效率增大了3.22倍;当增益相同时,多注方式的互作用长度较单注缩短了33%.该方法能够有效增大THz行波管的工作电流,提高互作用增益及效率、3 d B带宽、输出功率;在增益相同时,基模多注行波管可以做得更短更紧凑.

关 键 词:基模  多注  折叠波导  THz行波管
收稿时间:2014-07-04

Theoretical and simulation study of 0.14 THz fundamental mode multi-beam folded waveguide traveling wave tube
Yan Sheng-Mei,Su Wei,Wang Ya-Jun,Xu Ao,Chen Zhang,Jin Da-Zhi,Xiang Wei.Theoretical and simulation study of 0.14 THz fundamental mode multi-beam folded waveguide traveling wave tube[J].Acta Physica Sinica,2014,63(23):238404-238404.
Authors:Yan Sheng-Mei  Su Wei  Wang Ya-Jun  Xu Ao  Chen Zhang  Jin Da-Zhi  Xiang Wei
Abstract:To improve the current and output power of the THz traveling wave tube (TWT), a fundamental mode multi-beam folded waveguide (FMMBFW) TWT scheme is proposed. Firstly, an equivalent circuit model FMMBFW for calculating the high-frequency characteristic is established and compared with numerical simulation. Secondly, the transmission characteristic of 60 periods FMMBFW is analyzed. Finally, the beam-wave interaction characteristic of 0.14 THz FMMBFW TWT is completed by numerical simulation and theoretical calculation. When the DC current is 12 mA and the applied voltage is 15.75 kV, the 3 dB bandwidth of 0.14 THz FMMBFW TWT is 25 GHz (128-153 GHz), the maximum gain is 33.61 dB and the maximum output power is 23 W. When the DC current is 30 mA and the voltage is 15.75 kV, the maximum gain is 38 dB and the maximum pulse output power is 63.1 W at 0.14 THz. Compared with the fundamental single-beam folded waveguide (FW) TWT under the same working condition, the 3 dB bandwidth is doubled, its output power is raised by a factor of 9.66 and the interaction efficiency is increased by 3.22 times. Based on the same gain, the length of FMMBFW TWT is just 52.6 mm while the length of single beam FW-TWT is 78.2 mm. The proposed method can increase effectively the current of FMMBFW TWT; and the interaction gain, efficiency, 3 dB bandwidth, output power can be improved. When the gain is the same, a shorted and compact FMMBFW TWT can be constucuted.
Keywords: fundamental mode multi-beam folded waveguide THz traveling wave tube
Keywords:fundamental mode  multi-beam  folded waveguide  THz traveling wave tube
本文献已被 CNKI 等数据库收录!
点击此处可从《物理学报》浏览原始摘要信息
点击此处可从《物理学报》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号