FDTD Method for Obliquely Incident Electromagnetic Wave in Time-Varied Plasma

Abstract

One-dimensional FDTD (Finite Different Time Domain) method for electromagnetic (EM) wave in obliquely incident time-varied plasma is introduced in this paper. By eliminating a field value in two-dimensional Maxwell equation, it can be converted to one-dimensional Maxwell equation with time-varied value. In this way, the calculating efficiency can be enhanced and the computing source can be saved. Based on piecewise linear current density recursive convolution (PLJERC) FDTD method, the method for EM wave in obliquely incident time-varied plasma is derived and used to calculate transmission response. The calculated results are compared to measurement results to verify the method, and the influence of EM wave in plasma under different incident angle is analyzed.