Space-based tethered phased-array antenna

Details Space-based tethered phased-array antenna Space-based tethered phased-array antenna

1992-03-31

1994-12-06

Gregory, Bernarr E.

Communications: directive radio wave systems and devices (e.g.,

Directive

Including a steerable array

342157, 342354, 244158R, H01Q 326, H04B 7185

Patent

active

H00013838

ABSTRACT:
An unsupported, flexible, quasi-linear phased-array antenna within a space-based radar system which is tethered to a host satellite in free space. The antenna is formed by a plurality of antenna elements which are connected serially along a common axis. The antenna points in an Earth-pointing direction via gravity-gradient forces acting thereon. The phased-array antenna is capable of radiating a narrow electromagnetic beam in the end-fire direction along the array either in a spot or conical beam for detecting, identifying and tracking moving targets on or near the Earth's surface. According to one aspect of the invention, the phased-array antenna forms an elongated conductor which moves through a magnetic field in space for generating electrical power.

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