VERFAHREN ZUR TRANSFERIERUNG VON KUPFERMOTIVEN AUF EINE AUS ZUSAMMENGESETZTEN MATERIALIEN BESTEHENDE PARABOLISCHE UNTERLAGE.

摘要

The present invention relates to a process for transferring copper patterns to a parabolic support made of composite material, characterised in that, in the course of seven successive steps: - copper patterns (11) are made on a circular aluminium sheet (10) by photo-etching a copper layer deposited electrolytically, - with the aid of a press, this sheet (10) is flattened against a parabolic shape (13) corresponding to that of the desired structure, the sheet (10) being positioned so that the copper patterns (11) are situated at the side of the shape, the press (12) being lowered at a slow and constant speed (V); - the etched sheet is annealed; - after the metal dome thus obtained is separated from the shape (13), this metal dome is attached rigidly to a parabolic support (15), made of a composite material and following the same configuration, - the aluminium is then dissolved using an acid solution; - after complete dissolution of the aluminium, the acidity is neutralised by immersion in a base solution; - final drying is then carried out. Application in particular to the field of radio frequency beams.