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

Junghoon Kim, Bruno Clerckx, Paul D. Mitcheson

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

    29 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
    Event2017 Wireless Power Transfer Conference, WPTC 2017 - Taipei, Taiwan, Province of China
    Duration: 2017 May 102017 May 12

    Publication series

    NameWPTC 2017 - Wireless Power Transfer Conference

    Other

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

    Bibliographical note

    Publisher Copyright:
    © 2017 IEEE.

    ASJC Scopus subject areas

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

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