Mie scattering of electromagnetic waves by charged sphere particle

被引：0
作者：
Zhang, Zijia [1 ,2 ]
Pan, Qi [1 ]
Chen, Haixiu [1 ,2 ]
机构：
[1] School of Information and Control Engineering, Nanjing University of Information Science & Technology, NanJing, 210044, Jiangsu
[2] Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Nanjing University of Information Science & Technology, Nanjing, 210044, Jiangsu
来源：
Dianbo Kexue Xuebao/Chinese Journal of Radio Science | 2015年 / 30卷 / 03期
关键词：
Charged sphere particle; Mie scattering; Scattering of electromagnetic waves;
D O I：
10.13443/j.cjors.2014053001
中图分类号：
学科分类号：
摘要：
According to the theory of the Mie's scattering of the charged particles and the characteristics of the Mie scattering, the reduced scattering coefficient is derived, that is related to the surface density and the electromagnetic impedance in vacuum. The Mie scattering characteristic is compared by calculating the scattering coefficient of the charged and neutral particles. The pure charges carried on the surface of the particles increase the surface conductivity, and then affect the scattering electromagnetic waves. When the surface conductivity reach magnitude of millisiemens, it will have obvious effects, as the surface conductivity increases, the scattering coefficient will have bigger change. When the conductivity reaches a certain value, the scattering coefficient tends to be stable. With the increase of conductivity, scattering intensity also increased, but to a certain value, the scattering intensity is no longer increased significantly. For a bigger particle, the scattering coefficient will reduce after charged, but the scattering energy along different directions would redistribute, some direction scattering enhance, others decrease. For a smaller particle, the scattering coefficient will increases, but the redistribution of energy along different directions is not obvious. Copyright © 2015 by Editorial Department of Chinese Journal of Radio Science
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页码：429 / 436
页数：7
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