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| S波段宽带大功率连续波耦合腔行波管3维模拟设计 | |
| 引用本文： | 李文君, 许州, 林郁正, 等. S波段宽带大功率连续波耦合腔行波管3维模拟设计[J]. 强激光与粒子束, 2006, 18(06). |
| 作者姓名： | 李文君 许州 林郁正 金晓 黎明 |
| 作者单位： | 1.清华大学 工程物理系, 北京 1 00084;;;2.中国工程物理研究院 应用电子学研究所, 四川 绵阳 621 900 |
| 摘 要： | 使用3维PIC粒子模拟软件定量分析了耦合腔行波管的大信号注波互作用行为。使用完整的仿真模型完成了S波段连续波管型的设计，达到如下设计指标：工作频率2.0~2.3 GHz，输出功率4.3 kW，频带内增益波动±0.7 dB。提出了使用大介电常数微扰介质棒减小耦合阻抗计算误差的方法，研究了行波管的冷腔特性，给出了色散、耦合阻抗等参数。 |
| 关 键 词： | 耦合腔行波管 连续波 3维模拟 PIC粒子模拟 冷腔特性 |
Three-dimensional simulation of a broadband high-power CW S-band coupled-cavity traveling-wave tube |
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| li wen-jun, xu zhou, lin yu-zheng, et al. Three-dimensional simulation of a broadband high-power CW S-band coupled-cavity traveling-wave tube[J]. High Power Laser and Particle Beams, 2006, 18. | |
| Authors: | li wen-jun xu zhou lin yu-zheng jin xiao li ming |
| Affiliation: | 1. Department of Engineering Physics,Tsinghua University,Beijing 100084,China;;;2. Institute of Applied Electronics,CAEP,P.O.Box 919-1014,Mianyang 621900,China |
| Abstract: | Quantitative analysis of the large-signal beam-wave interaction of coupled-cavity traveling-wave tube (TWT) is performed using three-dimensional PIC code. With an integrated model, an S-band CW coupled-cavity TWT is designed. The design parameters of this tube are：operating frequency from 2.0 GHz to 2.3 GHz，output power 4.3 kW，gain fluctuation ±0.7 dB. In order to reduce the computing error of interaction impedance, a method using perturbation dielectric rod with big dielectric constant is proposed. Cold cavity characteristic of coupled-cavity TWT is also studied and the simulation results of dispersion and interaction impedance are given. |
| Keywords: | coupled-cavity twt cw three-dimensional simulation pic simulation cold cavity characteristic |
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