D7.4 - An Inkjet-Printed Ambient RF Energy Harvester
- AMA Conferences 2017
2017-05-30 - 2017-06-01
- Proceedings Sensor 2017
- D7 - Energy Harvesting
- C. Beisteiner, B. Zagar - Johannes Kepler University Linz (Austria)
- 546 - 550
Energy harvesting is a technology for extracting a minute amounts of power from ambient sources to typically supply low-power electronic circuits. In this proposed paper a low-cost energy harvester is presented, that uses RF energy sources. An antenna with a voltage doubler is used to convert the low input power to sufficiently high voltage levels for directly driving low-power electronics. While conventional RF energy harvesters are fabricated using conventional fabrication processes, this RF energy harvester is realized by inkjet-printing an antenna and the impedance matching circuit on a photo paper substrate. Only the top layers of such substrates are coated with a polymer, so that they readily absorb the waterbased conductive ink. A coplanar waveguide design is presented to fulfill these requirements.