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提出了斜入射分层线性各向异性等离子体电磁散射的时域有限差分(FDTD)方法,通过将二维麦克斯韦方程等价地转换为一维麦克斯韦方程,避免了用二维时域有限差分方法分析该散射问题,极大地提高了计算效率.分析推导了TEz和TMz波斜入射线性分层各向异性等离子体电磁散射的FDTD方法,然后通过该方法计算不同入射角的各向异性等离子板的电磁波反射系数,并与其解析解进行比较,结果表明该方法的准确性和有效性.最后,将该算法应用于计算涂覆分层各向异性等离子体金属板在不同入射角下的反射系数,分析了不同入射角对反射系数的影响.
A finite-difference time-domain finite difference (FDTD) method for oblique electromagnetic scattering of linearly-polarized plasma is proposed. By converting two-dimensional Maxwell’s equations into one-dimensional Maxwell’s equations equivalently, the two-dimensional finite difference time-domain method The scattering problem is analyzed to improve the computational efficiency greatly.The FDTD method for the electromagnetic scattering of linearly layered anisotropic plasmons of TEz and TMz waves is derived and analyzed, and then the anisotropic plasmonic plates with different incident angles are calculated by this method The results show that the proposed method is accurate and effective.Finally, the algorithm is applied to calculate the reflection coefficient of the layered anisotropic plasma metal plate under different incident angles, The influence of different incident angles on the reflection coefficient is analyzed.