A 925 MHz 1.4μW wireless energy-harvesting circuit with error-correction ASK demodulation for RFID healthcare system

Shuenn-Yuh Lee, Tzung Min Tsai, Wei Chih Lai, Soon-Jyh Chang, Stony Tai

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

4 Citations (Scopus)

Abstract

This paper presents a low-power energy-harvesting circuit with error-correction demodulation for radio-frequency identification (RFID) application. This circuit uses the new structure to demodulate ASK signals and includes the power unit with a wake-up circuit and a power-on-reset controller. The energy-harvesting circuit proposed by this paper can substantially decrease the capacitance used in the demodulator circuit and the wake-up circuit, and the capacitance is 14 pF only. Moreover, a detection circuit and a correcting circuit are adopted to enhance bit error rate of decoding. The chip was implemented in CMOS 0.18 μm technology. The sensitivity of this work is -13 dBm. The pulse width error can be reduced to less than 1% to fit the EPC Gen-2 standard by error-correction demodulator.

Original languageEnglish
Title of host publication2015 IEEE International Symposium on Circuits and Systems, ISCAS 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages101-104
Number of pages4
ISBN (Electronic)9781479983919
DOIs
Publication statusPublished - 2015 Jul 27
EventIEEE International Symposium on Circuits and Systems, ISCAS 2015 - Lisbon, Portugal
Duration: 2015 May 242015 May 27

Publication series

NameProceedings - IEEE International Symposium on Circuits and Systems
Volume2015-July
ISSN (Print)0271-4310

Other

OtherIEEE International Symposium on Circuits and Systems, ISCAS 2015
CountryPortugal
CityLisbon
Period15-05-2415-05-27

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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