Pulse propagation on a semiinfinite horizontal wire above ground. Near-zone fields

Steven L Dvorak, Donald G. Dudley

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The near zone electric field distribution due to a transient current pulse propagating on a semiinfinite wire above the ground is investigated. A quasi-transverse electromagnetic approximation to the modal equation for the propagation wave number is used to obtain the time history of the pulse on the wire. Spectral domain techniques are then used to obtain an expression for the electric field. In the resulting two-dimensional Sommerfeld integrals, representation of the angular integral in terms of incomplete Lipschitz-Hankel integrals allows for the efficient computation of the frequency domain near and intermediate zone fields. A numerical inverse Fourier transform is then applied to obtain the transient response. Numerical results, presented in both the time and frequency domains, are used to determine when the previously obtained far zone approximations can be applied. The results in this paper are for the quasi-transverse electromagnetic component of current; however, similar techniques can be applied to the Earth-attached and continuous modes.

Original languageEnglish (US)
Pages (from-to)899-910
Number of pages12
JournalRadio Science
Volume27
Issue number6
StatePublished - Nov 1992

Fingerprint

Electric fields
wire
Wire
Inverse transforms
propagation
electric field
pulses
Transient analysis
Wave propagation
electromagnetism
Fourier transforms
electric fields
Earth (planet)
transient response
approximation
wave propagation
Fourier transform
histories
history
distribution

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Atmospheric Science
  • Computers in Earth Sciences
  • Geochemistry and Petrology
  • Geophysics
  • Instrumentation

Cite this

Pulse propagation on a semiinfinite horizontal wire above ground. Near-zone fields. / Dvorak, Steven L; Dudley, Donald G.

In: Radio Science, Vol. 27, No. 6, 11.1992, p. 899-910.

Research output: Contribution to journalArticle

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