On the feasibility of frequency doubling microwave RFIDs exploiting paper-based antennas and pentacene diodes

This study shows that, at the present state of development, one-bit frequency doubling tags seems to be feasible exploiting green technologies. The optimal process will exploit a paper substrate where both antennas and pentacene organic diodes could be deposited by means of ink-jet printing. The proposed frequency doubling tag has a fully uniplanar layout (no vias needed), whereas the use of simple non-linear devices is adequate to open the market of organic microwave RFID systems.