电磁波在非均匀等离子体波导中的传播 |
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引用本文: | 吴坚强,王海明.电磁波在非均匀等离子体波导中的传播[J].电子科技大学学报(自然科学版),2001,30(4):401-406. |
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作者姓名: | 吴坚强 王海明 |
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作者单位: | 1.电子科技大学高能电子所 成都 610054 |
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基金项目: | 教育部高等学校骨干教师资助计划;四川省学术和技术带头人培养基金资助项目 |
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摘 要: | 利用麦克斯韦方程和线性理论推导了电磁波在径向非均匀未磁化等离子体波导中传播的色散方程,对其传播特性进行了讨论,对等离子体在径向具有线性和二次抛物线分布的色散曲线进行了数值计算;发现了电磁波相对于均匀等离子体分布的一些变化规律:HE模式的电磁波截止频率降低,EH模式的电磁波截止频率升高。
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关 键 词: | 径向非均匀 等离子体 圆柱波导 色散方程 |
收稿时间: | 2001-01-27 |
Propagation of Electromagnetic Wave Along Waveguide Filled with Inhomogeneous Plasma |
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Affiliation: | 1.Inst. of High Energy Electronics,UEST of China Chengdu 610054 |
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Abstract: | Using Maxwell(s equations and the linear theory, the dispersion equations of wave propagation along the waveguide filled with radially and inhomogeneously unmagnetized plasma are deduced in this paper. Its propagation characteristics are discussed. The wave dispersion curves under radially linear and parabola plasma distribution are calculated quantitatively. The principles of variation compared with homogeneous conditions are discovered:the cut-off frequencies of HE waves decrease, while the cut-off frequencies of EH waves increase. |
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