Analysis of an energy harvesting circuit in the presence of complex waveforms

Regis Rousseau 1 Florin Doru Hutu 1 Guillaume Villemaud 1
1 SOCRATE - Software and Cognitive radio for telecommunications
Inria Grenoble - Rhône-Alpes, CITI - CITI Centre of Innovation in Telecommunications and Integration of services
Abstract : This paper shows the incidence of the modulation scheme and of the input power on the RF to DC rectifier conversion efficiency. A commercial energy harvesting (EH) P21XXCSR-EVB evaluation board from Powercast Corporation is used as measurement target and several waveforms are employed to evaluate the rectification efficiency. With a continuous wave as reference, QPSK, QAM and OFDM waveforms usage demonstrates that digital modulated signals can lead to a better efficiency. Thus, by selecting a high peak to average power ratio (PAPR), and under certain conditions, the performances of the energy harvesting circuit are enhanced.
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Regis Rousseau, Florin Doru Hutu, Guillaume Villemaud. Analysis of an energy harvesting circuit in the presence of complex waveforms . Journées Scientifiques de l'URSI: "Radiosciences au service de l’humanité", Feb 2017, Sophia-Antipolis, France. ⟨hal-01530695⟩

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