Quasi-Static Range Propagation Equations for the Approximate Fields Within a Conducting Slab.
NAVAL UNDERWATER SYSTEMS CENTER NEW LONDON CONN NEW LONDON LAB
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Approximate expressions for the ac quasi-static fields produced by electric and magnetic dipole antennas located within a conducting slab have been derived by employing finitely conducting earth-image theory techniques. Asymptotic results have also been obtained by applying the quasi-near approximation to the basic Sommerfeld integrals. The resulting approximations are shown herein to agree closely with previously derived numerical integration results. The resulting expressions are particularly applicable to short range electromagnetic propagation in a shallow sea. Author
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