Thin PTFE high-frequency copper-clad plate

The utility model relates to a thin PTFE (Polytetrafluoroethylene) high-frequency copper-clad plate, which consists of an upper surface, a middle layer and a lower surface, the upper surface and the lower surface of the copper-clad plate are both copper foils, at least one surface of each copper foil is a processed rough surface, the middle layer comprises a polytetrafluoroethylene film, and the lower surface of the polytetrafluoroethylene film is a thin film. The rough surface of the copper foil on the upper surface of the copper-clad plate is connected and fixed with the rough surface of the copper foil on the lower surface through the polytetrafluoroethylene film on the middle layer; the middle layer of the copper-clad plate is a pure-grade polytetrafluoroethylene film, and the thickness of the polytetrafluoroethylene film is 0.05-0.50 mm; the copper foil is an electrolytic copper foil, and the thickness of the electrolytic copper foil is 0.018-0.070 mm. The flexible cable has excellent electrical property