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电磁波在径向非均匀球对称等离子体中的衰减

宋法伦 曹金祥 王舸

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电磁波在径向非均匀球对称等离子体中的衰减

宋法伦, 曹金祥, 王舸

The attenuation of electromagnetic waves by inhomogeneous spherically symmetric plasma

Song Fa-Lun, Cao Jin-Xiang, Wang Ge
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  • 提出了一种计算任意入射角的电磁波在径向非均匀球对称等离子体中的传播和吸收的模型.在此模型中,把非均匀等离子体球分成若干个同心等离子体球壳,并且假定每一个同心壳层内等离子体密度均匀分布.采用几何光学近似方法,考虑相位系数和衰减系数的矢量性,分别研究了几种典型的非均匀密度分布形式的等离子体在不同碰撞频率、中心等离子体密度和电磁波入射角条件下对入射电磁波的传播和衰减特性,获得了一些有意义的结果.
    A simulation model has been developed to calculate the transmission and absorption of electromagnetic waves by inhomogeneous spherically symmetric plasma.In this model,the nonuniform sphere is modeled by numbers of concentric spherical shells,and each has a fixed electron density.Using the geometrical optics approximation and considering that the phase coefficient and attenuation coefficient are vectors,we have studied the property of absorption and transmission of electromagnetic waves by inhomogeneous spherically symmetric plasma for different collision frequency,central plasma density and frequency of electromagnetic waves for three typical density distribution profiles.Some useful results are obtained.
    • 基金项目: Project supported by the Science Research Foundation of the Education Bureau of Hunan Province, China (Grant No. 011040010128).
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  • 文章访问数:  6346
  • PDF下载量:  900
  • 被引次数: 0
出版历程
  • 收稿日期:  2003-04-25
  • 修回日期:  2003-06-23
  • 刊出日期:  2004-02-05

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