The influence of ice particles on microwave propagation in thundercloud

Man-tang Su, Jia-qing Chen, Yu Zhang, Jie Yang
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Abstract

Based on the scattering model of charged particles to electromagnetic waves in Rayleigh approximation and permittivity model of ice particles, we deduced the attenuation model under the situation when the electromagnetic waves pass through ice particles area, then we performed the simulation and made analyses. The results show that: (1) When the ice particles are electrically charged, the attenuation of electromagnetic waves is much greater than those who are not charged. (2) The more charge of ice particles, the greater effect it will make on the attenuation of electromagnetic waves. (3) The frequency of the electromagnetic waves also has a great influence on the attenuation, the higher the frequency, the greater the attenuation.
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冰粒对雷雨云中微波传播的影响
基于瑞利近似下带电粒子对电磁波的散射模型和冰粒介电常数模型,推导了电磁波通过冰粒区时的衰减模型,并进行了仿真和分析。结果表明:(1)冰粒子带电时,电磁波的衰减远大于不带电时的衰减。(2)冰粒子的电荷越多,对电磁波衰减的影响越大。(3)电磁波的频率对衰减也有很大影响,频率越高,衰减越大。
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