Metamaterial impedance matching network for ambient rf-energy harvesting operating at 2.4 GHz and 5 GHz

Ertugrul Coskuner, Joan J. Garcia-Garcia*

*Corresponding author for this work

Research output: Contribution to journalArticleResearchpeer-review

3 Citations (Scopus)

Abstract

This paper points out the viability of the utilization of metamaterial transmission lines as a multifrequency impedance matching network, improving RF-Energy Harvesting systems operating around 2.4 GHz and 5 GHz. Metamaterial transmission lines introduce additional degrees of freedom in the transmission line design, providing the possibility to match the impedance in multiple bands. The impedance matching structure has been designed and optimized using ADS simulator to match the input impedance of a four-diode-bridge rectifier connected to an energy management system. The proposed Metamaterial Impedance Matching Network (MIMN) has been fabri-cated using standard PCB technologies and tested in a full operative ambient RF-Energy Harvesting System obtaining a DC output voltage of 1.8 V in a 6.8 mF supercapacitor.

Original languageEnglish
Article number1196
JournalElectronics (Switzerland)
Volume10
Issue number10
DOIs
Publication statusPublished - 2 May 2021

Keywords

  • Ambient RF-energy harvesting
  • Energy management system
  • Impedance matching network
  • Metamaterials
  • Wi-Fi bands

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