An integrated battery-less wirelessly powered RFID tag with clock recovery and data transmitter for UWB localization

Hamed Rahmani, Aydin Babakhani

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

Abstract

In this paper, we present a fully integrated battery-less RFID tag that is fabricated in 180nm CMOS technology for localization and biomedical applications. The design is composed of a rectenna, a power management unit, a data receiver used for clock recovery, and a UWB transmitter. Power and clock signals are transferred to the tag through an inductive link at 250 MHz that is AKS-modulated with a square wave with a frequency of up to 2 MHz. The proposed tag can be used as a transponder to transmit back short pulses with a width of 50 ns when placed in proximity of a reader. Measured results show that the tag can also be used for communication purposes and communicate a sequence of digital data to a reader. The whole chip size including a loop antenna for power and clock recovery and a dipole antenna for the UWB transmitter is 2.4 × 2.3 mm 2.

Original languageEnglish (US)
Title of host publicationIMS 2020 - 2020 IEEE/MTT-S International Microwave Symposium
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages460-463
Number of pages4
ISBN (Electronic)9781728168159
DOIs
StatePublished - Aug 2020
Event2020 IEEE/MTT-S International Microwave Symposium, IMS 2020 - Virtual, Los Angeles, United States
Duration: Aug 4 2020Aug 6 2020

Publication series

NameIEEE MTT-S International Microwave Symposium Digest
Volume2020-August
ISSN (Print)0149-645X

Conference

Conference2020 IEEE/MTT-S International Microwave Symposium, IMS 2020
Country/TerritoryUnited States
CityVirtual, Los Angeles
Period8/4/208/6/20

Keywords

  • Clock recovery
  • CMOS
  • On-chip antenna
  • RFID tag
  • Transponder
  • UWB communication
  • Wireless power transfer

ASJC Scopus subject areas

  • Radiation
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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