Spatial Distributions of Radiation Fields in Air from an Underwater Magnetic Dipole Source

Abstract

We apply the parallel TSS-FDTD method to obtain the spatial distributions of fields in air radiated from an underwater magnetic dipole source. The equivalent principle is used to calculate the far fields in a far zone by recording the tangential electromagnetic fields on a virtual surface above the air-sea surface. Numerical results show that the presence of sea surface affects the spatial distributions of electric field along the propagation direction.