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This paper presents the results of research on microwave breakdown in air, it includes the experimental study and the theoretical analysis. The experimental study has been done in a waveguide with a frequency of 9.37GHz, the peak power up to 200kW, pulse width from 0.3 to 2.0μs. The repetition rate of microwave source is from single pulse to 970 pulse per second. The process of the breakdown of repetition pulse has also been recorded for a burst of ten pulses. A theoretical model for breakdown threshold is presented also. The theoretical are in good agreement with the experimental ones. 相似文献
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通过对半导体材料中载流子迁移率的特性分析,在原HPM探测器的基础上,提出了探测器中半导体传感器的新设计,使探测器的检测灵敏度提高一个量级;同时研制成功S波段HPM探测器。在传感器的加工方面采用了新的工艺,并对电源进行了改进,使之功能完善、使用简单、具有实用性。其电源偏压在40V时,X波段的探测器在60kW时输出检测脉冲信号幅度高达9V,S波段的探测器在600kW时输出检测脉冲信号幅度高达10V,可适用于10~500ns脉宽的HPM功率测量。 相似文献
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