Joint impact of input power, papr, and load resistance on the receiver efficiency of multisine waveforms in RF energy harvesting

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Abstract

The receiver efficiency in radio-frequency (RF) energy harvesting (EH) is affected by numerous parameters such as the average RF input power and peak-to-average power ratio (PAPR) of the waveform, the EH circuit components, and the load. In this paper, we experimentally study the dependence of RF-to-DC efficiency on these parameters. We present a test-bed, comprising a signal generator and an off-the-shelf energy harvesting receiver with a diode-based rectifier, for evaluating the RF-to-DC efficiency for varying input RF power, load resistance and a number of co-phased baseband multisine waveforms (viz. PAPR). The experimental results suggest that the RF-to-DC efficiency of multisine waveforms in RF EH is significantly affected by the average input RF power and the load resistance. The high-PAPR multisine waveforms are preferable for RF EH only for a certain range of average input RF power and load resistance. In particular, for the considered rectifier, a single-sinusoid waveform yields the highest RF-to-DC efficiency for low-resistance and high average input RF power region, while high-PAPR baseband multisines are optimal for high-resistance and low average input RF power region.

Original languageEnglish
Title of host publication2021 IEEE Wireless Power Transfer Conference, WPTC 2021
PublisherIEEE
Number of pages4
ISBN (Electronic)9781728196336
DOIs
Publication statusPublished - 1 Jun 2021
Publication typeA4 Article in a conference publication
EventIEEE Wireless Power Transfer Conference - , United States
Duration: 1 Jun 20214 Jun 2021

Publication series

Name2021 IEEE Wireless Power Transfer Conference, WPTC 2021
ISSN (Electronic)2573-7651

Conference

ConferenceIEEE Wireless Power Transfer Conference
Country/TerritoryUnited States
Period1/06/214/06/21

Keywords

  • Load resistance
  • Rectifier
  • RF energy harvesting

Publication forum classification

  • Publication forum level 1

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering
  • Safety, Risk, Reliability and Quality

Fingerprint

Dive into the research topics of 'Joint impact of input power, papr, and load resistance on the receiver efficiency of multisine waveforms in RF energy harvesting'. Together they form a unique fingerprint.

Cite this