Electric Field Radiated By a Vertical Dipole Antenna Above a Lossy Half Space by using Calculated and Assumed Current Distribution

This paper compares a numerical model of a vertical dipole placed in the air, along the z-axis, above a lossy half space with a model with assumed current distribution (triangular and sinusoidal). The electric field is computed for various heights above ground and various ratios of the physical length and wavelength of the antenna. The obtained results show that both approaches give similar results under certain conditions.