Unfurlable sparse array reflector system

Details Unfurlable sparse array reflector system Unfurlable sparse array reflector system

1999-09-08

2000-10-24

Wong, Don

Communications: radio wave antennas

Antennas

Antenna components

343DIG2, 343915, H01Q 1520

Patent

active

061374547

ABSTRACT:
An unfurlable reflector antenna system having one or more unfurlable arms that are each shaped in the form of a parabolic right cylinder when it is unfurled. Each arm comprises an RF reflecting membrane or a thin shell as the reflector structure. Each arm is coupled by way of a line feed to a receiver. The system is specifically designed for use on a spacecraft. Each arm may be stowed by flattening the parabolic membrane or shell, and then rolling up the arm, which is accomplished without stretching. The sparse reflector antenna array system is thus stowable in a compact configuration, yet easily unfurls to provide a very large diameter lightweight reflector.

REFERENCES:
patent: 3165751 (1965-01-01), Clark
patent: 4811034 (1989-03-01), Kaminskas
patent: 5977932 (1997-07-01), Robinson

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