| 一种新型结构低阻抗渡越辐射振荡器 |
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| 引用本文： | 曹亦兵,贺军涛,张建德. 一种新型结构低阻抗渡越辐射振荡器[J]. 强激光与粒子束, 2008, 20(12) |
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| 作者姓名： | 曹亦兵 贺军涛 张建德 |
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| 作者单位： | 国防科学技术大学,光电科学与工程学院,长沙,410073;国防科学技术大学,光电科学与工程学院,长沙,410073;国防科学技术大学,光电科学与工程学院,长沙,410073 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 设计了一种不加栅网结构的低阻抗渡越辐射振荡器器件，器件阻抗为20 Ω左右，采用同轴输出，具有所需导引磁场小、起振时间较快等优点，可望工作在重频和长脉冲状态。PIC粒子模拟表明，在输入电压和电流分别为550 kV和27.6 kA、约束磁场为0.8 T的条件下，在S波段3.175 GHz得到了平均功率大约4.0 GW的微波输出，束-波转换效率为26.4%。
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| 关 键 词： | 高功率微波 渡越辐射振荡器 阻抗 同轴结构 |
| 收稿时间： | 1900-01-01; |
Novel low-impedance transit-time radiation oscillator |
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| CAO Yi-bing,HE Jun-tao,ZHANG Jian-de. Novel low-impedance transit-time radiation oscillator[J]. High Power Laser and Particle Beams, 2008, 20(12) |
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| Authors: | CAO Yi-bing HE Jun-tao ZHANG Jian-de |
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| Affiliation: | College of Optoelectric Science and Engineering，National University of Defense Technology, Changsha 410073, China |
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| Abstract: | A novel foilless S-band low-impedance transit-time oscillator was designed. The impedance of this oscillator is about 20 Ω. Such an oscillator with coaxial structure has the advantages of low guide magnetic field and quick saturation time, expectantly operating repetitively and in a long-pulse state. As indicated by PIC simulations, the average power of output microwave is about 4.0 GW at the main frequency of 3.175 GHz with the input-diode voltage of 550 kV, the input-diode current of 27.6 kA, and the extra magnetic field of 0.8 Ｔ. Based on the simulation results, the power efficiency of microwave is about 26.4%, much better than that of a high-impedance transit-time radiation oscillator at the same input voltage． |
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| Keywords: | high power microwave transit-time radiation oscillator impedance coaxial structure |
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