A repetitive S-band long-pulse relativistic backward-wave oscillator.
A repetitive S-band long-pulse relativistic backward-wave oscillator.
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DOI：
10.1063/1.3622520
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发表时间：
2011-08
期刊：
影响因子：
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通讯作者：
Zhenxing Jin;Jun Zhang;Jianhua Yang;H. Zhong;B. Qian;T. Shu;Jian-de Zhang;Shengyue Zhou;
中科院分区：
文献类型：
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作者：
Zhenxing Jin;Jun Zhang;Jianhua Yang;H. Zhong;B. Qian;T. Shu;Jian-de Zhang;Shengyue Zhou;
本文对重复s波段长脉冲相对论性后向波振荡器进行了数值和实验研究。通过数值计算，给出了主要慢波结构的色散关系曲线。实验结果表明，在10 Hz的重复工作模式下，可获得脉冲持续时间约为100 ns（全宽度为半量级）的1 GW微波。微波频率为3.6 GHz，主导模式为TM(01)，功率转换效率约为20%。单脉冲能量约为100 j，实验结果与仿真结果吻合较好。通过对实验现象的分析，得出了强射频场下电动力学结构表面的爆炸发射是导致微波输出提前意外终止的主要原因。
This paper presents both numerical and experimental studies of a repetitive S-band long-pulse relativistic backward-wave oscillator. The dispersion relation curve of the main slow-wave structure is given by the numerical calculation. Experimental results show that a 1 GW microwaves with pulse duration of about 100 ns (full width of half magnitude) under 10 Hz repetitive operation mode are obtained. The microwave frequency is 3.6 GHz with the dominant mode of TM(01), and power conversion efficiency is about 20%. The single pulse energy is about 100 J. The experimental results are in good agreement with the simulation ones. By analyzing the experimental phenomenon, we obtain the conclusion that the explosive emission on the surface of the electrodynamics structure in intense radio frequency field mainly leads to the earlier unexpected termination of microwave output.