A proximity wireless sensor based on backscatter communication

Angel Servent, Spyros Daskalakis, Ana Collado, Apostolos Georgiadis

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

Abstract

A proximity sensor is designed as an antenna-based sensor, operating at 2.4 GHz. The operating principle relies on the fact that when an object approaches an antenna, it affects its radiation properties and its input impedance. A diode power detector is used to sense the antenna input impedance variation as a reflected wave at the input terminals of the antenna. The detector output analog dc voltage is read using an analog-to-digital (ADC) of a low power microcontroller and subsequently it is conveyed back to a reader using UHF backscatter communication based on the WISP architecture.

Original languageEnglish
Title of host publication2017 International Applied Computational Electromagnetics Society Symposium - Italy (ACES)
PublisherIEEE
ISBN (Electronic)9780996007832
DOIs
Publication statusPublished - 4 May 2017
Event2017 International Applied Computational Electromagnetics Society Symposium - Italy - Firenze, Italy
Duration: 26 Mar 201730 Mar 2017

Conference

Conference2017 International Applied Computational Electromagnetics Society Symposium - Italy
Abbreviated titleACES 2017
CountryItaly
CityFirenze
Period26/03/1730/03/17

Keywords

  • Antenna based sensor
  • IoT
  • Power decteor
  • Proximity sensor
  • RFID

ASJC Scopus subject areas

  • Radiation
  • Signal Processing
  • Computational Mathematics
  • Instrumentation

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  • Cite this

    Servent, A., Daskalakis, S., Collado, A., & Georgiadis, A. (2017). A proximity wireless sensor based on backscatter communication. In 2017 International Applied Computational Electromagnetics Society Symposium - Italy (ACES) [7916349] IEEE. https://doi.org/10.23919/ROPACES.2017.7916349