The transient electromagnetic field of an electric line source above a plane conducting earth

The pulsed electromagnetic radiation from an electric line source above a conducting earth is investigated theoretically. The modified Cagniard method is used to derive closed-form expressions for the electric and magnetic field anywhere above the conducting earth. Numerical results are presented fo...

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Bibliographic Details
Published in:IEEE transactions on electromagnetic compatibility 1991-02, Vol.33 (1), p.19-24
Main Author: Kooij, B.J.
Format: Article
Language:English
Subjects:
Applied sciences
Closed-form solution
Conducting materials
Conductivity
Earth
Electromagnetic compatibility
Electromagnetic fields
Electromagnetic radiation
Electromagnetic transients
EMP radiation effects
Exact sciences and technology
Information, signal and communications theory
Magnetic fields
Magnetic materials
Telecommunications and information theory
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Summary:The pulsed electromagnetic radiation from an electric line source above a conducting earth is investigated theoretically. The modified Cagniard method is used to derive closed-form expressions for the electric and magnetic field anywhere above the conducting earth. Numerical results are presented for the electric field for different points of excitation and observation above the earth, as well as for different values of the earth's material parameters, i.e. permittivity and electrical conductivity. It is shown that the effect of the conductivity is of significant importance to the calculation of interfering transient electromagnetic fields in the presence of a conducting earth.< >
ISSN:0018-9375
1558-187X
DOI:10.1109/15.68246