长脉冲相对论速调管放大器杂频振荡的分析与抑制

黄华;罗雄;雷禄容;罗光耀;张北镇;金晓

电子学报 ›› 2010, Vol. 38 ›› Issue (7) : 1473-1477.

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电子学报 ›› 2010, Vol. 38 ›› Issue (7) : 1473-1477.
学术论文

长脉冲相对论速调管放大器杂频振荡的分析与抑制

  • 黄华;罗雄;雷禄容;罗光耀;张北镇;金晓
作者信息 +

Analysis and Suppress of Multifrequency Oscillation on Long Pulse Relativistic Klystron Amplifiers

  • HUANG Hua;LUO Xiong;LEI Lu-rong;LUO Guang-yao;ZHANG Bei-zhen;JIN Xiao
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摘要

分析了S波段长脉冲相对论速调管放大器(RKA)输出微波杂频振荡和功率波形包络振荡的主要根源,采用粒子模拟程序对RKA电子束尺寸和阻抗、群聚距离、输出腔有载Q值、引导磁场、注入微波等参数的调节,有效抑制了杂频振荡. 根据分析结果开展了相应的实验研究,得到了较好的实验结果,输出微波由300MW提高到540MW,脉宽由50ns提高到120ns,辐射微波重复频率20Hz,束波转换效率30%,杂频振荡得到了有效抑制.

Abstract

The main reasons of output microwave multi-frequency oscillation on S-band long pulse Relativistic Klystron Amplifiers were analyzed in this paper. Multi-frequency oscillation of RKA was suppressed evidently with PIC after some modifications on electron beams,bunching length,loaded Qvalue of output cavity, and leading magnetic field. According to the PIC results the long pulse RKA experiment was developed and a favorable experimental result was obtained, which the output microwave power increased from 300MW to 540MW, the output microwave pulse width increased from 50ns to 120ns. The efficiency was about 30%, the operation repetition was 20Hz.

关键词

相对论速调管 / 杂频振荡 / 长脉冲 / 脉冲缩短

Key words

relativistic klystron amplifiers / multi-frequency oscillation / long pulse / pulse shortening

引用本文

导出引用
黄华;罗雄;雷禄容;罗光耀;张北镇;金晓. 长脉冲相对论速调管放大器杂频振荡的分析与抑制[J]. 电子学报, 2010, 38(7): 1473-1477.
HUANG Hua;LUO Xiong;LEI Lu-rong;LUO Guang-yao;ZHANG Bei-zhen;JIN Xiao. Analysis and Suppress of Multifrequency Oscillation on Long Pulse Relativistic Klystron Amplifiers[J]. Acta Electronica Sinica, 2010, 38(7): 1473-1477.
中图分类号: TN122   
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