Communications: radio wave antennas – Antennas – Antenna components
Patent
1987-10-26
1991-01-29
Hille, Rolf
Communications: radio wave antennas
Antennas
Antenna components
343881, H01Q 1520
Patent
active
049890158
ABSTRACT:
An unfurlable antenna reflector comprises a rigid central truss (12) on which are pivotally mounted circumferentially spaced booms (18). A network of tensioning cables (24) interconnect the ends of the booms to define a reflector-supporting net when the booms are in their fully deployed position. The booms deploy sequentially, to minimize shock loading, and have lengthening means (22) which simultaneously extend the outer ends of the booms after all the booms have reached their deployed position. A flexible mesh-like reflector surface (20) is connected to the net and is formed into a predetermined non-planar shape by net-shaping secondary cables (30).
REFERENCES:
patent: 3496687 (1970-02-01), Greenberg et al.
patent: 3509576 (1970-04-01), McLain
patent: 3576566 (1971-04-01), Cover et al.
patent: 3631505 (1971-12-01), Carman et al.
patent: 3635547 (1972-01-01), Rushing et al.
patent: 3717879 (1973-02-01), Ganssle
patent: 4498087 (1985-02-01), Imbiel et al.
patent: 4642652 (1987-02-01), Herbig et al.
Denson-Low Wanda
Hille Rolf
Hughes Aircraft Company
Mitchell Steven M.
Westerlund Robert A.
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