초록 ▼

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 receiv

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.

대표청구항

[ What is claimed is:] [1.] An unfurlable sparse reflector antenna array system comprising:one or more unfurlable RF reflecting arms, each shaped as a parabolic right cylinder when it is unfurled; anda line feed coupled to each arm.

[ What is claimed is:] [1.] An unfurlable sparse reflector antenna array system comprising:one or more unfurlable RF reflecting arms, each shaped as a parabolic right cylinder when it is unfurled; anda line feed coupled to each arm.