FDTD analysis of the near filed of a dipole antenna immersed in a magneto-plasma

摘要

In this report, the dipole antennas immersed in a magneto-plasma are analyzed by combining the conventional FDTD with the motion equation of electron. The near field patterns of the dipole antennas are illustrated for various kinds of plasma parameter, and the directions of magnetic field. The algorithm that combines FDTD method with the motion equation was proposed by Young, and is easy for formulation and implementation. However, because the permittivity does not appear in the algorithm, the conventional PML can not be applied directly. We propose a modified PML that can be implemented with above motioned algorithm.