The Radiation of Extremely Low Frequency (ELF) Waves |
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Authors: | Ta-Shing Chu |
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Affiliation: | Bell Labs., Holmdel, NJ, USA; |
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Abstract: | The excitation of extremely low frequency (ELF) waves by a horizontal electric dipole in the earth-ionosphere waveguide can be obtained by a heuristic approach based upon the observation of a relationship between a horizontal electric dipole and a horizontal magnetic dipole. Then multiple imaging takes into account the effect of the ionosphere. This approximate derivation preserves the physical picture which is obscured by complex mathematics in rigorous analysis. |
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