Electromagnetic ground-wave field of vertical antennas for communication at 1 to 30 MHz

Radio communication over the spherical surface of the Earth and sea makes use of vertical antennas in the frequency range from 1 to 30 MHz. For distances that extend beyond the approximation of a planar Earth, use must be made of the ground-wave. Following a description of antennas used on shipboard...

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Bibliographic Details
Published in:IEEE transactions on electromagnetic compatibility 1998-11, Vol.40 (4), p.337-342
Main Authors: King, R.W.P., Harrison, C.W.
Format: Article
Language:English
Subjects:
Antennas and propagation
Applied sciences
Dipole antennas
Earth
Electromagnetic compatibility
Electromagnetic fields
Exact sciences and technology
Frequency
Information, signal and communications theory
Marine vehicles
Sea surface
Surface waves
Telecommunications and information theory
Transmitting antennas
Underwater communication
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Summary:Radio communication over the spherical surface of the Earth and sea makes use of vertical antennas in the frequency range from 1 to 30 MHz. For distances that extend beyond the approximation of a planar Earth, use must be made of the ground-wave. Following a description of antennas used on shipboard, their radiated fields are analyzed in the planar- and spherical-Earth regions. The latter involves new formulas for the field of vertical dipoles over the spherical surface of the sea.
ISSN:0018-9375
1558-187X
DOI:10.1109/15.736219