| 36单元高功率双层径向线螺旋阵列天线功率容量 |
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| 引用本文： | 李相强,刘庆想,赵柳,张健穹,张政权.36单元高功率双层径向线螺旋阵列天线功率容量[J].强激光与粒子束,2007,19(6):943-946. |
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| 作者姓名： | 李相强 刘庆想 赵柳 张健穹 张政权 |
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| 作者单位： | 西南交通大学 理学院, 成都 610031 |
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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： | 对36单元高功率双层径向线螺旋阵列天线的功率容量进行了研究。讨论了真空状态下的微波击穿和真空与大气交界面的微波击穿，以这两种状态下的击穿阈值为依据，论证了阵列天线实现1 GW高功率微波辐射的可行性。采用有限元软件数值模拟了中心频率为4.0 GHz的阵列天线的功率容量，给出了模拟结果并分析了功率容量降低的原因；提出了提高阵列天线功率容量的技术途径。结果表明：改进的高功率双层径向线螺旋阵列天线可以实现1 GW高功率微波的发射。
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| 关 键 词： | 高功率微波 功率容量 阵列天线 径向线 螺旋天线 |
| 文章编号： | 1001-4322（2007）06-0943-04 |
| 收稿时间： | 2007/1/26 |
| 修稿时间： | 2007-01-262007-05-15 |
Power capacity of 36-element high power helical array antenna fed from double-layered radial waveguide |
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| LI Xiang-qiang,LIU Qing-xiang,ZHAO Liu,ZHANG Jian-qiong,ZHANG Zheng-quan.Power capacity of 36-element high power helical array antenna fed from double-layered radial waveguide[J].High Power Laser and Particle Beams,2007,19(6):943-946. |
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| Authors: | LI Xiang-qiang LIU Qing-xiang ZHAO Liu ZHANG Jian-qiong ZHANG Zheng-quan |
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| Institution: | College of Science, Southwest Jiaotong University, Chengdu 610031, China |
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| Abstract: | The power capacity of a 36-element high power helical array antenna fed from double-layered radial waveguide is investigated.Two breakdown conditions are discussed,which are breakdown under vacuum condition and breakdown on the medium surface.Based on those breakdown threshold values,the power capacity of the antenna is analyzed theoretically and qualitatively and simulated.The simulation results are presented and the reasons for capacity debasement are analyzed.Methods for improving the power capacity are discussed.The results show that the power capacity of the improved antenna can reach 1 GW. |
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| Keywords: | Helical antenna Radial waveguide Array antenna Power capacity High-power microwave |
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