A WLAN 2.4-GHz RF energy harvesting system with reconfigurable rectifier for wireless sensor network

Zizhen Zeng, Xing Li, Amine Bermak, Chi Ying Tsui, Wing Hung Ki

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

12 Citations (Scopus)

Abstract

In RF energy harvesting for wireless sensor network, due to the variation of the available RF power for individual node sensor, the conventional Dickson rectifier could not achieve the optimal harvesting efficiency in a wide available power range. In this work, a novel reconfigurable rectifier with adjustable conversion ratio is proposed without changing matching network. Based on this, a WLAN (2.4 GHz) RF energy harvesting system is proposed with the maximum power point tracking (MPPT). The entire system is implemented in an 180nm CMOS process. Post-layout HSPICE simulation results show that with MPPT, the reconfigurable rectifier achieves a high energy harvesting efficiency for a wide available power range and is configured with 3.3x response time reduction when compared with the existing reconfigurable rectifier to cater for the frequent changing RF power.

Original languageEnglish
Title of host publicationISCAS 2016 - IEEE International Symposium on Circuits and Systems
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2362-2365
Number of pages4
Volume2016-July
ISBN (Electronic)9781479953400
DOIs
Publication statusPublished - 29 Jul 2016
Event2016 IEEE International Symposium on Circuits and Systems, ISCAS 2016 - Montreal, Canada
Duration: 22 May 201625 May 2016

Other

Other2016 IEEE International Symposium on Circuits and Systems, ISCAS 2016
CountryCanada
CityMontreal
Period22/5/1625/5/16

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ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Zeng, Z., Li, X., Bermak, A., Tsui, C. Y., & Ki, W. H. (2016). A WLAN 2.4-GHz RF energy harvesting system with reconfigurable rectifier for wireless sensor network. In ISCAS 2016 - IEEE International Symposium on Circuits and Systems (Vol. 2016-July, pp. 2362-2365). [7539059] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ISCAS.2016.7539059