论文信息 - A modified FDTD scheme of EM scattering by Oblique incidence on layered unmagnetied plasma medium

A modified FDTD scheme of EM scattering by Oblique incidence on layered unmagnetied plasma medium

The modified Finite-Difference Time-Domain (FDTD) method of electromagnetic scattering by the oblique incidence on the layered unmagnetized plasma is proposed, and avoids the usage of two-dimensional FDTD method, greatly improves the computational efficiency. The FDTD method of the electromagnetic scattering by TEz and TMz plane wave oblique incident on the layered unmagnetized plasma is derived, respectively. And by using of the method, the reflection coefficients of electromagnetic waves with different incidence angles are computed, and compare the results with analytical solution. The results show its accuracy and efficiency. Finally, the algorithm is applied to calculate the electromagnetic scattering by the metal plate coated the plasma and the isotropic stratified plasma medium with the different incident angles, and their reflection coefficients under the condition of the different incident angles are analyzed.

Gang Wang | Ping-ping Yu | Ying-tao Xie | Li-xia Yang

[1] K. Kunz,et al. A frequency-dependent finite-difference time-domain formulation for transient propagation in plasma , 1991 .

[2] Y. Takayama,et al. Reinterpretation of the auxiliary differential equation method for FDTD , 2002, IEEE Microwave and Wireless Components Letters.

[3] J. Kong,et al. Analysis and compensation of numerical dispersion in the FDTD method for layered, anisotropic media , 2002 .

[4] P. Kosmas,et al. FDTD simulation of TE and TM plane waves at nonzero incidence in arbitrary Layered media , 2005, IEEE Transactions on Antennas and Propagation.

[5] Dennis M. Sullivan,et al. Z-transform theory and the FDTD method , 1996 .

[6] R. J. Luebbers,et al. Piecewise linear recursive convolution for dispersive media using FDTD , 1996 .

[7] Bruce Archambeault,et al. The Finite-Difference Time-Domain Method , 1998 .

[8] Qiang Chen,et al. An FDTD formulation for dispersive media using a current density , 1998 .

[9] G.S. Smith,et al. A Total-Field/Scattered-Field Plane-Wave Source for the FDTD Analysis of Layered Media , 2008, IEEE Transactions on Antennas and Propagation.