ELECTROMAGNETIC FIELDS OF A DIPOLE OVER AN ANISOTROPIC HALF-SPACE

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Abstract
An oscillating electric dipole located over a homogeneous anisotropic conducting half-space is considered. The conductivity tensor is taken to have a simple diagonal form which is appropriate for a finely stratified medium. Expressions for the electromagnetic fields are derived for both vertical and horizontal dipole excitation. It is shown that the horizontally polarized fields are independent of the vertical component of the conductivity. On the other hand, the vertically polarized fields are influenced both by the horizontal and the vertical components of the conductivity. The results have possible application to electromagnetic investigations of the earth's crust and in radio propagation studies.

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