Communications: radio wave antennas – Antennas – With support for antenna – reflector or director
Patent
1992-09-08
1994-09-27
Hajec, Donald
Communications: radio wave antennas
Antennas
With support for antenna, reflector or director
343877, 343881, 248436, H01Q 108
Patent
active
053510623
ABSTRACT:
A retractable distributed array antenna has a multiplicity of radiative elements arranged in a beam-forming array of desired configuration and resolvable into a plurality C of columns, with each column having at least one of the antenna radiator elements. Each of a number P of elongated column members, up to but not exceeding C in number, supports the antenna elements of an associated column. The column members are arranged with their elongated dimension generally parallel to one another. The adjacent end portions of each pair of column member, or of a column member and a central stowage module, are joined by a spring-loaded hinge assembly, which urges the joined column member end portions away from each other, to place the columns of elements into the desired distributed array antenna configuration, if no retroactive forces are present. A retraction mechanism, which may use drum-fed drawcables, is provided for controllably drawing the joined column member end portions towards each other, against the action of the hinge spring forces, to collapse the array into a smaller volume than the volume which is occupied by the expanded array.
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Binsley David L.
Knapp John R.
Miller Donald P.
Reale John D.
General Electric Company
Hajec Donald
Ho Tan
Krauss Geoffrey H.
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