FDTD Solution for Radiation Characteristics of Antennas Covered by Plasma Sheath

In this paper, the finite-difference time-domain method based on the Runge-Kutta exponential time differencing formulation (RKETD-FDTD) is used to analyze the radiation characteristics of the plasma-covered Beidou antenna. Simulation results show that the plasma sheath will seriously hinder the propagation of electromagnetic waves, which may cause communication interruption. Specially, adding a “magnetic window”, the influence of plasma on electromagnetic waves can be weakened, which is expected to alleviate the problem of communication interruption. Therefore, our research has an extensive application prospect.