强激光与粒子束, 2015, 27 (3): 032041, 网络出版: 2015-03-23
等离子体鞘层中电磁传输特性的数值仿真和实验验证
Numerical simulation and experimental verification of electromagnetic transmission characteristics of plasma sheath
电磁波传播 黑障 Z变换时域有限差分法 非均匀等离子体 electromagnetic wave propagation blackout Z Finite-Difference Time-Domain non-uniform plasma
摘要
采用Z变换时域有限差分(Z-FDTD)数值模拟方法, 研究了电磁波在非均匀等离子体中的传输特性。在此基础上, 对L波段(1.575 GHz)电磁波, 在等离子峰值密度为1011/cm3且沿径向呈Bessel函数分布的柱形等离子体源下, 进行了2, 4, 6, 8, 10 cm厚度下的传输特性实验, 得到电磁波衰减分别为9, 15.8, 24.9, 36.4, 45.5 dB, 并与仿真结果对比, 吻合良好。
Abstract
In order to study the transmission of electromagnetic waves in the non-uniform plasma sheath, the Z Finite-Difference Time-Domain(Z-FDTD) numerical method is combined with experiments. Electromagnetic waves transmission characteristics experiments are carried out under L-band(1.575 GHz) in plasma with thicknesses of 2,4,6,8,10 cm. The attenuations of electromagnetic wave are 9, 15.8, 24.9, 36.4, 45.5 dB. The results agree well with simulation results.
陈禹旭, 赵青, 薄勇, 宣银良, 孙旭, 刘建卫. 等离子体鞘层中电磁传输特性的数值仿真和实验验证[J]. 强激光与粒子束, 2015, 27(3): 032041. Chen Yuxu, Zhao Qing, Bo Yong, Xuan Yinliang, Sun Xu, Liu Jianwei. Numerical simulation and experimental verification of electromagnetic transmission characteristics of plasma sheath[J]. High Power Laser and Particle Beams, 2015, 27(3): 032041.
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