Quasi-static fields of dipole antennas at the earth's surface

摘要

The electric and magnetic field components produced by vertical and horizontal dipoles (both electric and magnetic types) located at the surface of a semi-infinite conducting medium have been derived and presented for the quasi-static range. The receiving antenna has also been assumed to be located at the earth's surface. These derivations resulted from the application of the reciprocity theorem to previously derived field components. The special cases of the measurement distance ρ much greater than the skin depth δ and ρ ≪ δ have been examined. Some numerical values for the field-component functions have also been provided.