Prototyping and experimentation of a closed-loop wireless power transmission with channel acquisition and waveform optimization

Junghoon Kim, Bruno Clercks, Paul D. Mitcheson

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

13 Citations (Scopus)

Abstract

A systematic design of adaptive waveform for Wireless Power Transfer (WPT) has recently been proposed and shown through simulations to lead to significant performance benefits compared to traditional non-adaptive and heuristic waveforms. In this study, we design the first prototype of a closed-loop wireless power transfer system with adaptive waveform optimization based on Channel State Information acquisition. The prototype consists of three important blocks, namely the channel estimator, the waveform optimizer, and the energy harvester. Software Defined Radio (SDR) prototyping tools are used to implement a wireless power transmitter and a channel estimator, and a voltage doubler rectenna is designed to work as an energy harvester. A channel adaptive waveform with 8 sinewaves is shown through experiments to improve the average harvested DC power at the rectenna output by 9.8% to 36.8% over a non-adaptive design with the same number of sinewaves.

Original languageEnglish
Title of host publicationWPTC 2017 - Wireless Power Transfer Conference
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781509045853
DOIs
Publication statusPublished - 2017 Jun 19
Externally publishedYes
Event2017 Wireless Power Transfer Conference, WPTC 2017 - Taipei, Taiwan, Province of China
Duration: 2017 May 102017 May 12

Other

Other2017 Wireless Power Transfer Conference, WPTC 2017
CountryTaiwan, Province of China
CityTaipei
Period17/5/1017/5/12

ASJC Scopus subject areas

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

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    Kim, J., Clercks, B., & Mitcheson, P. D. (2017). Prototyping and experimentation of a closed-loop wireless power transmission with channel acquisition and waveform optimization. In WPTC 2017 - Wireless Power Transfer Conference [7953827] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/WPT.2017.7953827