Abstract: A computer assisted method for manufacturing a foldable paraboloid antenna includes election of a two-dimensional radial Origami pattern with triangular cells and election of a paraboloid surface. The Origami pattern is projected from the paraboloid surface focus onto the paraboloid surface to print the Origami pattern on the paraboloid surface, obtaining triangles with curved sides. A pattern with triangles with straight sides on the paraboloid surface is obtained by joining vertices of the projected curved-sided triangles. The method includes scaling and calculating centroids of the triangles, to reduce each triangle referenced on the corresponding centroid and to determine spacing, obtaining a mesh with segments and triangular cells delimited by the segments. The triangular cells have triangles of reflective rigid material. The mesh is flexible, so each segment width is at least the sum of the thicknesses of two adjacent rigid triangles, and periphery cells have a rounded outer edge.

Abstract: A computer assisted method for manufacturing a foldable paraboloid antenna includes election of a two-dimensional radial Origami pattern with triangular cells and election of a paraboloid surface. The Origami pattern is projected from the paraboloid surface focus onto the paraboloid surface to print the Origami pattern on the paraboloid surface, obtaining triangles with curved sides. A pattern with triangles with straight sides on the paraboloid surface is obtained by joining vertices of the projected curved-sided triangles. The method includes scaling and calculating centroids of the triangles, to reduce each triangle referenced on the corresponding centroid and to determine spacing, obtaining a mesh with segments and triangular cells delimited by the segments. The triangular cells have triangles of reflective rigid material. The mesh is flexible, so each segment width is at least the sum of the thicknesses of two adjacent rigid triangles, and periphery cells have a rounded outer edge.

Abstract: A process for improving the reflectivity of reflective surfaces made of a composite. The process includes laminating a layer of metalized plastic on at least one layer of composite, bonding the metalized plastic to a substrate in a preimprgenated state; cutting strips or patterns of an assembly of the layer of composite and the layer of metalized plastic; laminating strips or patterns of the assembly as a first layer on a molding jig; adding additional composite layers to the first layer; preparing a vacuum and curing bag; introducing the assembly in an autoclave; performing a curing cycle, bonding the layer of metalized plastic to the rest of the substrate by polymerization of a resin in the composite.

Abstract: The invention relates to a process for improving the reflectivity of reflective surfaces (1) of antennas, said reflective surfaces (1) being made of a composite, comprising at least one layer of composite (2), characterized in that it comprises the following steps: a) laminating a layer of plastic (3) comprising a metallization layer (4) on the at least one layer of composite (2), bonding the metallization layer (4) to the substrate of the layer of composite (2) in its preimpregnated state by means of the resin itself of the composite; b) cutting the assembly of the layer of composite (2) and the layer of plastic (3) comprising a metallization layer (4); c) forming strips or patterns with a determined shape from the assembly formed by the layer of composite (2) and the layer of plastic (3) comprising a metallization layer (4) of step b); d) laminating the strips or patterns of step c) as a first layer on a molding jig; e) preparing the vacuum and curing bag; f) introducing in the autoclave; g) performing t