由折射指数计算高功率微波的击穿阈值

The Effect of Air Refraction Index by Equivalent Electric-Field Intensityin High Power Microwave Propagation

高功率微波的强电场引起大气中性粒子的电离形成等离子体,中性粒子的电离频率与电场强度、大气压强密切相关。本文分析计算了高功率微波传输一个脉冲后折射指数随脉冲宽度、微波等效电场和大气压强的变化,并由此得到不同条件下的场强击穿阈值。

The intense field of high power microwave causes ionization of neutral particle in atmosphere and the plasma comes into being. The ionization frequency of neutral particle relates to electric field intensity and atmospheric pressure. When an impulse of high power microwave is propagated, the variation of electron concentration and refractive index accompanying with that of equivalent electric field atmospheric pressure is introduced in this paper.