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

Author

King, Ronold W.P. ; Harrison, Charles W., Jr.

Author_Institution

Gordon McKay Lab., Harvard Univ., Cambridge, MA, USA

Volume

40

Issue

4

fYear

1998

fDate

11/1/1998 12:00:00 AM

Firstpage

337

Lastpage

342

Abstract

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

Keywords

HF radio propagation; antenna radiation patterns; dipole antennas; electromagnetic fields; mobile antennas; mobile radio; ships; 1 to 30 MHz; HF; MF; distances; electromagnetic ground-wave field; frequency range; planar-Earth region; radiated fields; radio communication; sea; shipboard antennas; spherical Earth surface; spherical surface; vertical antennas; vertical dipoles; Antennas and propagation; Dipole antennas; Earth; Electromagnetic fields; Frequency; Marine vehicles; Sea surface; Surface waves; Transmitting antennas; Underwater communication;

fLanguage

English

Journal_Title

Electromagnetic Compatibility, IEEE Transactions on

Publisher

ieee

ISSN

0018-9375

Type

jour

DOI

10.1109/15.736219

Filename

736219