| 高功率微波大气击穿区域分布 |
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| 引用本文： | 周东方, 余道杰, 宁辉, 等. 高功率微波大气击穿区域分布[J]. 强激光与粒子束, 2014, 26: 063026. doi: 10.11884/HPLPB201426.063026 |
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| 作者姓名： | 周东方 余道杰 宁辉 马弘舸 陈昌华 林竞羽 魏进进 侯德亭 胡涛 杨建宏 饶育萍 王利萍 韩晨 夏蔚 |
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| 作者单位： | 1.解放军信息工程大学 信息系统工程学院, 郑州 450002;;;2.西北核技术研究所, 西安 71 00024;;;3.中国工程物理研究院 应用电子学研究所, 高功率微波技术重点实验室, 四川 绵阳 621 900 |
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| 摘 要： | 大气击穿是高功率微波(HPM)大气传输研究最主要的内容。一方面高功率微波辐射天线近场以振荡场形式存在，在某些局部点形成场强的峰值分布，导致天线近场击穿、天线口径面介质击穿等一系列复杂的问题；另一方面，随着单台微波源功率的大幅提高和功率合成技术的发展，天线远场区的大气击穿问题越来越突出。如何判别是否存在大气击穿，如何确定判断的依据，都是需要解决的问题。论文提出依据击穿阈值和天线辐射场与高度关系曲线的变化规律进行判断。当HPM初始辐射场小于该区域大气击穿阈值，且上述两条曲线之间存在交点，即说明存在HPM辐射天线未击穿而传输路径近场区或远场区可能满足大气击穿条件的情况，这一现象也在相关实验中得到了证实。
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| 关 键 词： | 高功率微波 大气击穿 击穿区域 近场 远场 |
| 收稿时间： | 2013-11-16 |
| 修稿时间： | 2014-02-28 |
Area distribution of HPM air-breakdown |
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| Zhou Dongfang, Yu Daojie, Ning Hui, et al. Area distribution of HPM air-breakdown[J]. High Power Laser and Particle Beams, 2014, 26: 063026. doi: 10.11884/HPLPB201426.063026 |
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| Authors: | Zhou Dongfang Yu Daojie Ning Hui Ma Hongge Chen Changhua Lin Jingyu Wei Jinjin Hou Deting Hu Tao Yang Jianhong Rao Yuping Wang Liping Han Chen Xia Wei |
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| Affiliation: | 1. Institute of Information System Engineering,PLA Information Engineering University,Zhengzhou 450002,China;;;2. Northwest Institute of Nuclear Technology,P.Q.Box 69-13,Xi’an 710024,China;;;3. Science and Technology on High Power Microwave Laboratory,Institute of Applied Electronics,CAEP,P.O.Box 919-1017,Mianyang 621900,China |
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| Abstract: | Air-breakdown is a key problem for high power microwave(HPM) propagating. On one hand, field distribution of HPM antenna at near-field region exists in oscillating wave style, and some peak points will occur at local area, thus a series of problems occur, such as air-breakdown at near-field region, dielectric surface breakdown, etc. On the other hand, air-breakdown at far-field region must be considered for the improvement of single HPM sources and the development of power combining technology. The method and criterion to judge the air-breakdown should be studied. This paper presents the way based on the curves regular of air-breakdown threshold and antenna field distribution with the altitude. When initial field value is less than the air-breakdown threshold in the corresponding, and two curves exist at the intersection point, then air-breakdown may be in the propagating route while it will not occur in the near field region of antenna. The result is proved in related experiments. |
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| Keywords: | high power microwave air-breakdown breakdown area near-field region far-field region |
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