A way towards an organic frequency doubler for harmonic RFID applications

This paper describes the realization and the measurement of a paper printed, low cost, frequency doubler for harmonic RFID applications. The proposed tag structure consists of two aerial resonators (RX and TX) printed on paper and a Schottky diode able to double the frequency of the received signal. This work aims at proving the feasibility of a fully organic frequency doubler exploiting paper printed coils and organic diode (pentacene based). At this level of the development, paper coils, using a fairly mature technology, have been developed accounting for the present performance and geometrical constraints of state of the art, lab developed, organic Schottky diodes. The obtained results confirm that the assumed approach can be pursued and represents a clear reference for the future development of the fully organic structure.