Patent ID: 6333716
Filing Date: 2001-12-25
Classification: B29C,B29L,C23C,H01Q

Abstract:
A method for manufacturing an antenna device for a radio telephone comprising the steps of:providing an antenna body part by:forming a first part of a dielectric body by injection molding where a first resin is injected into a first cavity in an injection molding tool;forming a composite dielectric body by injection molding where a second resin is injected into a second cavity in the injection molding tool, said first part of the dielectric body is placed in the second cavity as a core for becoming an integrated part of the composite body;coating a metallic layer onto a surface of the composite dielectric body where said first and second resins are selected to have different adhesive properties for a metal coating so one of the resins repels the metallic layer while the other allows the metallic layer to adhere; andmounting said antenna body on a separate metal shield acting as a ground plane for the antenna body.