用天线阵测量圆柱过模波导中虚阴极振荡器产生的高功率微波模式和功率
Mode distribution and power diagnosis of the high power microwave from vircator with the antenna array
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摘要: 介绍在圆柱过模波导中虚阴极振荡器产生高功率微波实验中用天线阵测量微波模式的原理和方法。测量微波模式对研究高功率微波产生的机理具有重要意义。结合在圆柱过模波导壁上安装小电探针天线和小磁环天线测量微波模式的方法，用天线阵测量圆柱过模波导中开口辐射的电磁场空间分布。应用最小二乘法优化原理拟合高功率微波模式功率分布。用天线阵测量了圆柱过模波导中虚阴极振荡器产生高功率微波混合模式功率分布。Abstract: The principle and method of using antenna array to diagnose the mode distribution, which is used in the experiment of high power microwave radiation of half reflected over mode circular cavity vircator, is introduced. Diagnosis of the modes is very useful to understand the vircator and enhance the output microwave power and the efficiency of the device. The small electric antenna and small magnetic antenna on the surface of circular waveguide are also used to diagnose the modes, which are combined in the antenna array to diagnose the space distribution of the radiation of the open end of over mode circular waveguide. The least square optimization formula is used to fit the mode distribution to the space distribution data. The power distribution of the mix modes of the vircator microwave so
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Key words:
- over mode waveguide /
- vircator /
- antenna array /
- mix modes /
- mode diagnosis
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