A controllable deployment mechanism for planar SAR antenna

Abstract

The embodiments of the present application relate to the field of antenna technology, and in particular to a controllable deployment mechanism of a planar SAR antenna, the controllable mechanism comprising: a deployment mechanism base, a motor, a transmission gear set, a synchronous gear set, a SAR panel, a deployable truss unit and a scissor mechanism; the transmission gear set is connected between the motor and the first SAR panel, and is used to transmit the torque output by the motor to the first SAR panel, so that the first SAR panel rotates; the synchronous gear set is arranged between the two SAR panels, and is used to cooperate with the deployable truss unit, so that each SAR panel except the first SAR panel rotates at the same angle as the first SAR panel; the scissor mechanism is connected to the top of two adjacent deployable truss units, and is used as an auxiliary power to prevent the SAR panel from being deployed in place when the SAR panel is deployed, and to prevent the SAR panel from retracting after the SAR panel is fully deployed. The controllable deployment mechanism can improve the storage ratio of the SAR antenna, reduce the deployment impact, and improve the deployment stability.

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