Abstract

The radiation pattern of a circular loop source of alternating current located in the lower half-space of two conductive media is considered. A solution of the linear Maxwell's equations in the frequency domain, using the Hankel transform to modified Helmholtz wave equations, was obtained. This leads to a system of ordinary differential equations with respect to the vertical coordinate, considering initial, boundary, and transition conditions. The solution determines the electromagnetic field in the conductive media which consists of primary and scattered waves. The results obtained from this paper can be used to evaluate numerical solutions of different complexities such as the underlying multilayered media. In addition, the derived formulation would be useful for interpreting airborne electromagnetic systems. PACS Nos.: 41.20Jb, 42.25Bs, 42.25Gy, 44.05+e

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