European Space Agency

Pipl Limited

Elguja Medzmariashvili

Leri Datashvili

Julian B Santiago Prowald

Maxym Polyakov

Nodar Tsignadze

Cornelis G Van't Klooster

Nikoloz Medzmariashvili

Alexander Ihle

Shota Tserodze

Cornelis VAN'T Klooster

A deployable reflector antenna is provided. An example antenna includes a deployable ring including a plurality of internal combined arms, a plurality of external combined arms, and a plurality of joints arranged circumferentially in a predetermined number of tiers from a bottom of the deployable ring to a top of the deployable ring. Each of the plurality of joints connects, in a scissor linkage configuration, at least one internal arm and at least one external arm. The antenna includes torsion springs configured to bias the deployable ring towards an open position, with at least one of the torsion springs coupled to one or more of the joints. The antenna includes a plurality of tension, each connecting two joints positioned within the same tier. The antenna includes a flexible reflector mounted on the deployable ring. The flexible reflector includes an upper concave mesh, a lower convex mesh, and connecting flexible rods.

Deployable symmetrical reflector antenna

Provided is a deployable reflector that includes a reflector, a tensioning frame with a deploying ring including upper booms and lower booms, sections composed of lower rods and upper rods and including pantograph levers, stanchions mounted between the upper booms and the lower booms, scissors-like levers located at an intersection of the pantograph levers, first sleeves put on the pantograph levers, second sleeves disposed on the lower rods and the upper rods, cylindrical joints disposed on the second sleeves, an expansion ring for connecting the upper rods and the lower rods, a reflector fixing mesh having triangular cells composed of elastic rods, an upper concave mesh and a lower convex mesh fastened with peripheral units and composed of triangular shape cells, where the reflector is attached to the upper concave mesh directly or is fastened to the upper concave mesh with a spatial shape gasket.

Deployable reflector

A multi-faceted deployable antenna frame including a six-bar linkage structure in a lateral facet of the antenna frame, the six-bar linkage structure being convertible from a folded state into a deployed state and having two first bars and four second bars, each bar being coupled to two others by a hinge to form a closed loop, where in the deployed state, the six-bar linkage structure has a quadrilateral shape. The antenna frame also includes a deployment means for deploying the antenna frame by moving the six-bar linkage structures from the folded state into the deployed state, the deployment means including: a flexible, elongated member of a substantially inextensible material; a first guiding means provided at an end portion of one of the first bars and coupled to the elongated member; a storage means provided at the first bar that includes the first guiding means for storing a part of the elongated member; a driving means that is coupled to the elongated member to pull the elongated member to the storing means when deploying the antenna frame; and a second guiding means between two adjacent second bars, the elongated member being coupled to the second guiding means. A first end of the elongated member is attached to the storing means and a second end of the elongated member is coupled to another first bar, and wherein the elongated member is extending between said first end and said second end along a plurality of second bars.

Deployable antenna frame

A mechanical support ring structure for supporting a deployable space reflector antenna. The mechanical support ring structure is convertible from a folded state into a deployed state and includes a ring-shaped pantograph having a plurality of circumferentially arranged pantograph sections which are deployable for converting the mechanical support ring structure from the folded state into the deployed state, and a plurality of circumferentially arranged support rods, each pantograph section being arranged between a respective pair of support rods, wherein each pantograph section includes one or more pairs of pantograph rods which intersect crosswise with each other at a respective crossing position.

Mechanical support ring structure

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Tbilisi, Georgia

Elguja Medzmariashvili