Optional chip: ХФ: ФМ11РФ08, NXP Mifare series; УХФ: Алиен Х3, Импињ М4, итд. HF antenna copper foil thickness 35um UHF antenna copper foil thickness 18um Minimum line spacing/line width: 0.1mm/0.1mm Insulating base material: PI/PET Minimum antenna size: ХФ: 10×17mm,УХФ: diameter < 9мм