Electromagnetic wave reflector and method for making same
AssigneeSociete de Transformation Industrielle
InventorJacques Trouillet
Life of this patent
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Abstract
In this antenna in an element in an electrically conductive material, the element comprises a gauze coated at least in part by a coating of thermoplastic material.
Claims6
A process for manufacturing a reflector of electromagnetic waves having a shape providing focussing of the electromagnetic waves, the process comprising:
- placing an electrically conductive lattice in a thermoplastic material injection mould having two mould halves, wherein the lattice placed in the moulding tool is a plane metallic gauze and has a shape that differs from said shape providing focussing of the electromagnetic waves;
- gripping between the two mould halves of the thermoplastic material injection mould the electrically conductive lattice, wherein the lattice is of such a dimension that a portion of the lattice overhangs the periphery of the mould;
- injecting a thermoplastic material into the mould under such a pressure that the thermoplastic material forms the lattice into said shape providing focussing;
- demoulding an injected part from the periphery of that which overhangs the lattice, and
- cutting off the lattice level with the part.
A reflector of electromagnetic waves comprising a lattice of an electrically conductive material coated by a coating of thermoplastic plastic material and having a central part and a border, wherein the central part the lattice appears on one of the faces of the coating, while it is buried in the coating on one part of the border.
Dependencies are inferred from the claim text.