Material for a dielectric substrate for the printed circuit and the antennas, the production of such a substrate carrying the means of interconnection between tracks and a dielectric substrate thus obtained.

摘要

The dielectric substrate material comprises polyurethane foam that is made of: polyols comprising 50% of trimethylol-propane and isocyanate; and additives such as catalyst based amine, surfactants and bubbling agent, where the ratio of polyol or isocyanate is 0.1-1 in volume. Independent claims are included for: (1) a process for fabricating a dielectric substrate carrying a printed circuit and interconnection units between tracks of different level of a device such as an antenna; and (2) a dielectric substrate.