Enhanced RFID tag detection accuracy using distributed antenna arrays

Ajeck M. Ndifon, Michael J. Crisp, Richard V. Penty, Ian H. White

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

2 Citations (Scopus)

Abstract

An Ultra High Frequency (UHF) Radio Frequency Identification (RFID) system using distributed antenna arrays for interrogating RFID tags in a highly multipath environment is demonstrated. The system makes use of phase diversity and beam steering to overcome fading. The tag detection accuracy is compared to a standard fixed antenna system, showing that the presented system is able to deliver more power to the more challenging tags, and therefore is capable of a higher tag read success rate. It is also shown that, whereas a fixed antenna is capable of scanning a single cell, the ability of a phased array to scan through 360° azimuth leads to a reduction in number of antennas required for a multicell system. The experimental results are validated using a 3D field-based propagation model, which enables visualisation of the power distribution in the field of interest, and provides insight into the improved system performance.

Original languageEnglish
Title of host publication12th Annual IEEE International Conference on RFID, RFID 2018
PublisherIEEE
Pages1-6
Number of pages6
ISBN (Electronic)9781538614563
DOIs
Publication statusPublished - 8 Jun 2018
Event12th Annual IEEE International Conference on RFID, RFID 2018 - Orlando, USA United States
Duration: 10 Apr 201812 Apr 2018

Conference

Conference12th Annual IEEE International Conference on RFID, RFID 2018
CountryUSA United States
CityOrlando
Period10/04/1812/04/18

Keywords

  • Distributed Antenna System
  • Multipath
  • Phased array antennas
  • RFID
  • Ultra High Frequency
  • wireless modelling

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Instrumentation

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