Hectometric wave transmission antenna

Details Hectometric wave transmission antenna Hectometric wave transmission antenna

2006-09-19

2006-09-19

Phan, Tho (Department: 2821)

Communications: radio wave antennas

Antennas

Mast or tower type

C343S886000

Reexamination Certificate

active

07109946

ABSTRACT:
To avoid searching for a new location for very high hectometric wave antennas, an antenna according to the invention comprises an existing vertical structure having a height of at least approximately ten meters and including at least one electrically conductive element connected to the ground, and an excitation conductor wire (4a) that is essentially electrically conductive, disposed at least in part in the vicinity of and outside the structure and connected to a emitter (E) so that the structure radiates substantially hectometric waves. The existing structure may be a broadcasting tower, a water tower, a chimney, a lighthouse or a lamp standard, wherein the excitation wire merges visually. The wire can be replaced by a conductive loop a few meters long, magnetically coupled to the structure.

REFERENCES:
patent: 2171256 (1939-08-01), Balliol
patent: 2998604 (1961-08-01), Seeley
patent: 4001832 (1977-01-01), Chesneau et al.
patent: 4001833 (1977-01-01), Chesneau et al.
Cho et al; “Space Diversityt Antenna Arrangements Mounted On A Metal Pole For Illuminating A Street Cell”; IEEE Transaction on Vehicular Technology, IEEE Inc., New York UD, vol. 47, No. 2; May 1998, pp. 531-536, XP000870838.

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