DEPLOYABLE LARGE-SIZE DOUBLE-MIRROR ANTENNA OF SPACECRAFT Russian patent published in 2012 - IPC H01Q15/00 

FIELD: radio engineering.

SUBSTANCE: antenna comprises the main parabolic mirror formed after deployment of sections of reflecting surfaces made of a rigid material, and a hyperbolic convergent mirror-radiator installed at four support brackets arranged at an angle to its longitudinal axis near the main mirror focus. Each support is made as capable to change angular position and is connected with a movable joint to an autonomous step electromechanical drive, which are attached to a single base capable of linear mutually perpendicular movement in the plane perpendicular to the convergent mirror's axis, carried out by two autonomous step electromechanical drives, at the same time the above electromechanical drives are connected with a unit of their operation control.

EFFECT: elimination of possible intolerable deviation of the convergent mirror position relative to the main mirror and putting their reflecting surfaces into a mutually agreed working position under conditions of spacecraft operation on orbit.

2 dwg