Features
■ Minimizes the occurrence of eddy currents in localized metalized surfaces that can reduce the associated
■ antenna performance
■ Makes it possible to mount the antenna on metal surfaces
■ Helps solve the metal interference effect of tag and reader when the antenna is on or near metal surfaces
■ Consists of dark color magnetic material layer and pressure-sensitive adhesive

Applications
■ 3M FFDM RFIC series is typically used for the 13.56MHz NFC antenna tag or reader applications. 3M FFDM RFIC series is normally attached to the NFC antenna and positioned between the antenna and the metal or other conductive surface that the antenna/FFDM is attached to. By inserting the 3M FFDM RFIC series between the antenna and conductor surface, it is possible to significantly limit occurrences of eddy current and correct for resonant frequency shifts to the antenna, which are caused by the interaction of the antenna and the conductor surface (i.e. metal surface). An NFC antenna near a metal surface can induce eddy currents in the metal surface, which in turn can degrade the antenna performance for read range. 3M FFDM RFIC series redirects the flux field of the antenna away from the metal surface and limits the eddy current generation and associated negative performance impact. RFIC Effectiveness Many factors determine the true communication range such as antenna size, sensitivity, field intensity, modulation algorithm and environment. To maximize the performance, it is necessary to take into account the fact that the inductance of the antenna may be changed by 3M FFDM RFIC series. It is necessary to adjust the resonance frequency of the antenna and circuit by changing the circuit capacitance and inductance value to be optimized with the FFDM addition.