Abstract
AbstractIn this chapter, the approximate formulas are derived for the electromagnetic field radiated by a vertical electric dipole in the presence of a three-layered region. In particular, both the trapped surface wave and the lateral wave are examined in detailed. Computations and discussions are carried out in several different cases. Furthermore, radiation patterns of the vertical dipole in the presence of a three-layered region are computed and discussed for a dielectric base with a wide range medium such as sea and lake water, wet and dry earth, and dry sand. When both the dipole and the observation point are on the surface of dielectric-coated Earth, the trapped surface wave is dominant. KeywordsLake WaterDielectric LayerDirect WaveLateral WavePerfect ConductorThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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