Since the magnetic film of the present invention has a much thinner thickness compared to a corresponding conventional magnetic layer and radiator coil material assembly and has no adhesive layer or air layer between the magnetic layer and the radiator, permeability required at the time of charging can be improved, a loss rate can be reduced and high charging efficiency can be obtained, Furthermore, since a band width and a gain rate can be improved, the magnetic film can be very usefully applied to wireless charging products which pursue slimming in design.