Communications: radio wave antennas – Antennas – Mast or tower type
Patent
1975-06-02
1976-08-31
Lieberman, Eli
Communications: radio wave antennas
Antennas
Mast or tower type
343881, H01Q 108
Patent
active
039784894
ABSTRACT:
A relatively low frequency linear element antenna characterized by its lightweight construction, relatively wide band width, and elastic strain energy deployment capability. The antenna has a plurality of slender electrical conductors such as wires forming radiating elements secured to a supporting tube with the conductors extending lengthwise of and spaced about the tube wall and electrically joined at the base end of the tube in such a way that the antenna has the same radiation characteristic as a conventional cylindrical antenna of the same diameter as the tube. The base ends of the conductors are gathered for connection to the center conductor of a coaxial antenna feed line to provide an impedance match between the antenna and coaxial line. The antenna supporting tube may comprise a thin-walled, resiliently flexible, strain energy deployable tube to permit contraction of the antenna to a folded or coiled packaged configuration and antenna deployment by elastic strain energy stored in the contracted tube.
REFERENCES:
patent: 3364488 (1968-01-01), Perenic et al.
patent: 3524190 (1970-08-01), Killion et al.
Fruktow Gelb N.
Kurland Richard M.
Anderson Daniel T.
Dinardo Jerry A.
Lieberman Eli
Nyhagen Donald R.
TRW Inc.
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