Abstract
The electromagnetic wave propagation in plasma media is modeled using finite-difference time-domain (FDTD) method based on the trapezoidal recursive convolution (TRC) Technique. The TRC Technique requires single convolution integral in the formulation as in the recursive convolution (RC) method, while maintaining the accuracy comparable to the piecewise linear convolution integral (PLRC) method with two convolution integrals. The three dimensional (3-D) TRC-FDTD formulations for plasma are derived. The high accuracy and efficiency of the presented method is confirmed by computing the transmission and reflection coefficients for a unmagnetized collision plasma slab. The backward radar cross section (RCS) of perfectly conducting sphere covered by homogeneous and inhomogeneous plasma is calculated.
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