Two-dimensional simulations for EM wave propagating in space

Using a two-dimensional wave propagation code¹ to study the electromagnetic wave travelling in space plasma. A two-dimensional ring-like-shaped plasma density profile is consider ed, and the electromagnetic wave is emitted by an antenna with different angles over the plasma ring. A large range of EM wave frequencies, plasma collision frequencies and EM wave incident angles are discussed. The simulation results show that the EM frequency and plasma collision frequency are very important factors to influence the propagation of EM wave. For a given antenna radio frequency, the EM wave propagates much deeper when the collision is weak, while when the collision frequency is fixed, the EM wave shows much stronger penetration ability for larger antenna frequency.