Optimal Operation of Multitone Waveforms in Low RF-Power Receivers

Mahmoud H. Ouda, Paul Mitcheson, Bruno Clerckx

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Citations (Scopus)

Abstract

This paper presents a study of the optimal performance of multitone signals in low RF-power transfer and energy harvesters. The choice of the load can be tricky, showing an advantage of a certain type of signals over another. For low RF power (-17dBm), the multitone signals do not improve the peak RF-to-dc power conversion efficiency (PCE) over the continuous wave (CW) single-tone signal, if the optimal load is selected for each case, however, the multitone signals maintain that peak PCE of ∼ 47% over higher output voltage (i.e: larger loads), and consequently enable more efficient dc-to-dc voltage boosting or even eliminate the need for the voltage booster in the RF power receiver. Thus, the low-power multitone waveforms can be considered as a voltage sensitivity booster rather than a PCE efficiency booster. This boosted rectified voltage is the key advantage of the multitone signals that leads to the enhancement in the overall efficiency of the low-RF power receiver.

Original languageEnglish
Title of host publication2018 IEEE Wireless Power Transfer Conference, WPTC 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538651599
DOIs
Publication statusPublished - 2019 Feb 11
Event2018 IEEE Wireless Power Transfer Conference, WPTC 2018 - Montreal, Canada
Duration: 2018 Jun 32018 Jun 7

Publication series

Name2018 IEEE Wireless Power Transfer Conference, WPTC 2018

Conference

Conference2018 IEEE Wireless Power Transfer Conference, WPTC 2018
CountryCanada
CityMontreal
Period18/6/318/6/7

Keywords

  • energy harvesting
  • multitone
  • rectifier
  • wireless power transmission

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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