| 高功率同轴波导Ubitron放大器的高频特性研究 |
| |
| 引用本文： | 史宗君,杨梓强,梁正.高功率同轴波导Ubitron放大器的高频特性研究[J].强激光与粒子束,2004,16(9):1175-1178. |
| |
| 作者姓名： | 史宗君 杨梓强 梁正 |
| |
| 作者单位： | 电子科技大学 物理电子学院， 四川 成都610054 |
| |
| 基金项目： | 国家自然科学基金资助课题(60178011) |
| |
| 摘 要： | 用三维非线性理论，对高功率同轴波导Ubitron放大器进行了研究。该Ubitron放大器采用环形相对论电子注与同轴波导的TE01模相互作用。通过数值模拟，在Ku波段得到了2.24MW的输出功率，其效率为10.9%，带宽为35% 。数值计算结果表明：电子注的自场导致饱和功率减少，频带变窄，增益下降。使用摇摆器幅值渐变，器件工作效率从10.9%提高到12.3%。
|
| 关 键 词： | Ubitron 同轴波导 空间电荷波效应 饱和功率 带宽 |
| 文章编号： | 1001-4322(2004)09-1175-04 |
| 收稿时间： | 2003/10/28 |
| 修稿时间： | 2003年10月28 |
High frequence characteristics of high power Ubitron amplifier with coaxial waveguide |
| |
| SHI Zong-jun,YANG Zi-qiang,LIANG Zheng.High frequence characteristics of high power Ubitron amplifier with coaxial waveguide[J].High Power Laser and Particle Beams,2004,16(9):1175-1178. |
| |
| Authors: | SHI Zong-jun YANG Zi-qiang LIANG Zheng |
| |
| Institution: | School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu 610054, China |
| |
| Abstract: | The high power Ubitron amplifier with coaxial waveguide is researched using the nonlinear theory in three dimensions. The Ubitron amplifier utilizes an annular electron beam interacting with TE_(01) mode in a coaxial waveguide. By numerical simulations, the output power of 2.24MW with 10.9% efficiency and 35% bandwidth in Ku-band is gained. The results show that the self-fields of the electron beam tend to reduce saturation power, narrow the bandwidth and lower gain. So the effects of self-fields should be considered in designing the Ubitron amplifier. Using wiggler taper, the efficiency is up to 12.3%. |
| |
| Keywords: | Ubitron Coaxial waveguide Space-charge effect Saturation power Bandwidth |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《强激光与粒子束》浏览原始摘要信息 |
| 点击此处可从《强激光与粒子束》下载免费的PDF全文 |
