摘要
基于Z变换形式的时域有限差分法计算公式,模拟了传播方向垂直于磁化磁场的电磁波在磁化等离子体层中的传播.通过离散傅立叶变换,给出了电磁波通过均匀和非均匀磁化等离子体后的反射系数和透射系数随频率的变化关系.还给出了电磁波经过均匀磁化等离子体层后的反射和透射系数和理论值的对比.
Electromagnetic propagation through a magnetized plasma is studied with the finite-difference time-domain（FDTD） method by means of Z transforms. The propagation direction is perpendicular to the biasing magnetic filed and the electric field is parallel to the biasing magnetic filed. The dependence of the reflection and transmission coefficients on frequency is obtained by discrete Fourier transform. A comparison with analytical values of homogeneous magnetized plasma is made. The reflection and transmission coefficients in an inhomogeneous magnetized plasma layer are calculated as well.
出处
《计算物理》
CSCD
北大核心
2005年第4期319-324,共6页
Chinese Journal of Computational Physics
基金
国家自然科学基金(批准号:10375071
60271027)
国防科技重点实验室(51486020203ZK1301)资助项目
关键词
时域有限差分
Z变换
磁化等离子体
反射系数
透射系数
finite-difference time-domain
Z transform
magnetized plasma
reflection coefficient
transmission coefficient
