UMBRELLA ANTENNA OF SPACE CRAFT Russian patent published in 2009 - IPC H01Q15/16 

FIELD: space engineering.

SUBSTANCE: invention is related to space engineering, in particular to mirror antennas with deployable large-size reflector of umbrella type. Umbrella antenna consists of radiator and reflector, including central unit, power carcass hingedly fixed to it and arranged in the form of spokes, being mechanically connected to network web, hub fixed to central unit on the opposite side from reflector opening, which in the area of free end is connected to spokes by means of guy lines with its single centre. Technical result is achieved by the fact that at free end of hub there is a device for adjustment of shape of radio-reflecting surface of reflector, output elements of which are arranged in the form of screws and are installed between single centre and each guy line, with ends of which they are connected mechanically with the possibility of rotary motion and independent variation of efficient distance from connection point of each guy line with spoke to single centre. Longitudinal axes of these output elements mutually coincide with appropriate axes passing through single centre and point of appropriate guy line connection to spoke.

EFFECT: expansion of reflector operational resources.

2 dwg