Inkjet-printed GSM900 band RF power harvester on paper-based substrates

In this article the outcomes of an experimental investigation on the inkjet-printed power harvester for GSM900 band are presented. In this survey, a passive one-stage discrete rectifier and a planar antenna are fabricated on cardboard using inkjet-printing technology. For the rectifier a voltage doubler structure and for the antenna a broadband planar monopole antenna are utilized. Then, the functionality of the whole module is proven by measuring the output voltage in the real environment. The measurement results demonstrate appropriate absorbed voltage level for feeding a low power circuit by the presented power harvester. By the exploitation of the proposed idea, the fabrication of low-cost environmentally-friendly battery-less wireless modules is feasible.