Communications: radio wave antennas – Antennas – Buried underground or submerged under water
Patent
1982-03-04
1984-04-24
Lieberman, Eli
Communications: radio wave antennas
Antennas
Buried underground or submerged under water
455129, 343866, 343846, H01Q 700, H01Q 104
Patent
active
044451237
ABSTRACT:
A method of establishing an ELF/VLF, vertical E-field transmitter loop antenna installation. The method comprises the steps of ascertaining a land region having contiguous areas of widely differing (by at least 4 to 1) subsurface conductivity, and positioning a closed loop wire antenna having a high-power, ELF/VLF transmitter in series electrical path therewith in a generally horizontal plane over the interface of the first and second contiguous areas. The closed loop wire antenna may be positioned above the surface of the contiguous areas, or on top or within the contiguous areas. The antenna may take the form of a rectangular, circular or elliptical loop and is positioned with respect to the interface of the contiguous areas as determined by the values of skin depths of the contiguous areas.
REFERENCES:
patent: 3183510 (1965-05-01), Rawls
patent: 3670247 (1972-06-01), Gutton et al.
patent: 3881154 (1975-04-01), Lewis et al.
patent: 3967201 (1976-06-01), Rorden
Fink and Christiansen, Electronics Engineer's Handbook, McGraw-Hill, N.Y., Second Edition, (pp. 18-95).
GTE Products Corporation
Lieberman Eli
Wimer Michael C.
Xiarhos Peter
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