A High-Efficiency RF Harvester with Maximum Power Point Tracking
Document typeConference report
PublisherMultidisciplinary Digital Publishing Institute (MDPI)
Rights accessOpen Access
This paper presents the implementation of a high-efficiency radiofrequency (RF) harvester, which consists of a rectenna and a maximum power point tracker (MPPT). The rectenna was characterized from -30 dBm to -10 dBm at 808 MHz, achieving an efficiency higher than 60% at -10 dBm. Experimental results also show that the rectenna can be well modelled as a Thévenin equivalent circuit, which allows the use of a simple ensuing MPPT. The complete RF harvester was tested, achieving an overall efficiency near 50% at -10 dBm. Further tests were performed powering a sensor node from a nearby antenna.
CitationGasulla, M. [et al.]. A High-Efficiency RF Harvester with Maximum Power Point Tracking. A: Eurosensors. "Eurosensors 2018, Graz, Austria, September 9-12, 2018: proceedings, volume 2". Basel: Multidisciplinary Digital Publishing Institute (MDPI), 2018, p. 1-5.