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Design optimization of an energy harvesting RF-DC conversion circuit operating at 2.45GHz

  • Jung Hun Kim
  • , Jo Bito
  • , Manos M. Tentzeris

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

    8 Citations (Scopus)

    Abstract

    In this paper, the optimization process of an RF-DC conversion circuit for energy harvesting from 2.45 GHz indoor Wi-Fi signals is discussed. The estimated power from a Wi-Fi router is about 0dBm, and it is expected to turn on an off-the-shelf-low-temperature sensor which has input impedance of 10kOhm. In this research, a series type RF-DC conversion circuit with a Schottky diode, SMS7630 from Skyworks is adopted. To specify the potential maximum RF-DC conversion efficiency, the input power, the load and matching circuit are optimized. As a proof-of-concept, the circuit is investigated and optimized with the relationship between the input power of 9dBm and load resistance of 10kOhm. As a result, the highest conversion efficiency of 72.7% and the maximum output voltage of 1.53V are achieved.

    Original languageEnglish
    Title of host publication2015 IEEE Antennas and Propagation Society International Symposium, APS 2015 - Proceedings
    PublisherIEEE
    Pages1280-1281
    Number of pages2
    Volume2015-October
    ISBN (Electronic)9781479978151
    DOIs
    Publication statusPublished - 22 Oct 2015
    Publication typeA4 Article in conference proceedings
    EventIEEE Antennas and Propagation Society International Symposium, APS 2015 - Vancouver, Canada
    Duration: 19 Jul 201524 Jul 2015

    Conference

    ConferenceIEEE Antennas and Propagation Society International Symposium, APS 2015
    Country/TerritoryCanada
    CityVancouver
    Period19/07/1524/07/15

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering

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