Study on Connection Boundary Conditions in Ionospheric Plasma Dispersive Media

In this paper, a method for studying the boundary conditions in ionospheric plasma dispersive media is proposed. Firstly, the Huygens principle is introduced briefly. Then the Huygens principle is introduced according to the incident source of FDTD algorithm. Finally, the boundary conditions of the plasma are modified, and the Drude model is selected to describe the dispersion characteristics of the plasma and numerical simulation. The simulation results show that the coherent error of the total field is the leakage of the scattered field, and it is verified that the modified connection boundary is correct.