不均匀等离子体对超高频微波吸收特点的研究
Study on the Absorption Characteristics of Ultra-High Frequency Microwave by Inhomogeneous Plasma
摘要: 在构建等离子体与电磁波相互作用的几何模型基础上,利用WKB近似方法得出了吸收衰减公式。结合Matlab数值模拟,讨论了不同入射角超高频微波与等离子体碰撞频率、等离子体峰值密度之间的相互影响和作用机理。通过计算结果发现,当等离子体分布呈抛物线分布时,对入射超高频微波的吸收效果最好。
Abstract:
Based on the geometric model of the interaction between plasma and electromagnetic wave, the absorption attenuation formula is obtained by using the WKB approximation method. The inter-action and mechanism of interaction between electromagnetic waves and plasma collision fre-quency and plasma peak density at different incident angles are discussed. The result illustrates that the wave attenuation is stronger when the plasma density presents a parabolic distribution.
参考文献
|
[1]
|
李慧, 刘江凡, 焦子涵, 等. 磁化分层等离子体中电磁波传播特性研究[J]. 强激光与粒子束, 2018, 30(11): 80-85.
|
|
[2]
|
陈伟, 郭立新, 李江挺, 等. 时空非均匀等离子体鞘套中太赫兹波的传播特性[J]. 物理学报, 2017, 66(8): 70-76.
|
|
[3]
|
林敏, 徐浩军, 魏小龙, 等. 电磁波在非磁化等离子体中衰减效应的实验研究[J]. 物理学报, 2015, 64(5): 313-319.
|
|
[4]
|
薄勇, 赵青, 罗先刚, 等. 电磁波在非均匀磁化的等离子体鞘套中传输特性研究[J]. 物理学报, 2016, 65(3): 167-176.
|
|
[5]
|
孟令辉, 任洪波, 刘建晓. 高温等离子体中太赫兹波的传输特性[J]. 物理学报, 2018, 67(17): 70-75.
|
|
[6]
|
孙行, 陈郑珊, 蔡红华, 聂万胜, 石天一. 电磁波在固体火箭尾焰中的折射轨迹研究[J/OL]. 兵器装备工程报: 1-8. http://kns.cnki.net/kcms/detail/50.1213.TJ.20190601.1104.004.html, 2019-08-01.
|
|
[7]
|
Guo, L., Chen, W., Li, J., et al. (2018) Scattering Characteristics of Electromagnetic Waves in Time and Space Inhomogeneous Weakly Ionized Dusty Plasma Sheath. Physics of Plasmas, 25, Article ID: 053707. [Google Scholar] [CrossRef]
|