Space-based tethered phased-array antenna (USH0001383)
Original Publication Date: 1994-Dec-06
Included in the Prior Art Database: 2006-Mar-31
US Statutory Invention Registration (SIRs)
Related DocumentsPatent/Patent Application:
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.