Dyadic Green's Function for a Two-Layered Earth.
AIR FORCE WEAPONS LAB KIRTLAND AFB N MEX
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Both the near-zone and far-zone electromagnetic field of an arbitrarily oriented dipole above a two-layer earth surface is obtained to a high degree of accuracy using a combination of numerical and analytical computational schemes. It is shown that marked differences exist between the field structures of a vertical dipole and a horizontal dipole in the case when the observation is made on the earth surface in the plane of the dipole. The magnitude of the power flux in the near field zone is shown to have maxima and minima depending upon the thickness and the electric constants of the first layer. Author