A 2.45-GHz RF energy harvester with on-chip 8-VCR SC booster for IoT devices

Chae Hyun Kim, Hyung Min Lee

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

Abstract

This paper presents an efficient RF energy harvester with reconfigurable voltage conversion ratio (VCR). The system adopts an optimal combination of multi-stage differential drive cross-coupled (DDCC) rectifiers and an on-chip switched-capacitor (SC) booster capable of providing 8 VCRs. The proposed system and its post-layout simulation in 65nm CMOS process verify that the output voltage of 1 V can be generated from 2.45-GHz RF signals with input power of - 20.1 dBm, while the SC booster achieves the power conversion efficiency (PCE) up to 68.3%.

Original languageEnglish
Title of host publication2021 IEEE International Symposium on Circuits and Systems, ISCAS 2021 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728192017
DOIs
Publication statusPublished - 2021
Event53rd IEEE International Symposium on Circuits and Systems, ISCAS 2021 - Daegu, Korea, Republic of
Duration: 2021 May 222021 May 28

Publication series

NameProceedings - IEEE International Symposium on Circuits and Systems
Volume2021-May
ISSN (Print)0271-4310

Conference

Conference53rd IEEE International Symposium on Circuits and Systems, ISCAS 2021
Country/TerritoryKorea, Republic of
CityDaegu
Period21/5/2221/5/28

Keywords

  • Cold startup
  • Energy harvesting
  • Rectifier
  • SC booster
  • Wireless charging

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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