A new RF rectifier for energy harvesting with enhanced dynamic power range
This paper proposes a new RF rectifier with a dynamically extendable RF DC power conversion 50% range. Compared to typical rectifiers, the adopted power combining topology extends the dynamic efficient range by 3 dB, while maintaining acceptable performance at low powers. A 1.84 GHz rectifier with the proposed topology is designed. A prototype of the designed rectifier is fabricated and tested. It is shown that the proposed rectifier maintains acceptable conversion efficiency over a power range extending from 2 dBm to 11 dBm. The performance of such rectifier is to be assessed using different antenna configurations dedicated to harvest RF and/or solar energy to power battery less devices.
2016 IEEE International Symposium on Antennas and Propagation (APSURSI)