Ranging of UHF RFID tag using stepped frequency read-out

Research output: Contribution to journalArticleScientificpeer-review

30 Citations (Scopus)

Abstract

This paper presents a phase-based method for obtaining the distance of an RFID tag with unknown properties. The tag's response is measured by the reader at several discrete frequencies at the threshold power of the tag. The dispersive properties of the modulated reflection coefficient of the tag are estimated from the measured power sensitivity and their effect is compensated in the distance estimation. The method is derived using a simple theoretical model for the tag and the performance of the method is experimentally verified at 860 MHz.
Original languageEnglish
Pages (from-to)1535-1539
Number of pages5
JournalIEEE Sensors Journal
Volume10
Issue number9
DOIs
Publication statusPublished - 2010
MoE publication typeA1 Journal article-refereed

Fingerprint

Radio frequency identification (RFID)
readers
reflectance
thresholds
sensitivity

Keywords

  • radio frequency identification
  • RFID
  • tracking
  • transponders
  • wireless sensors

Cite this

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title = "Ranging of UHF RFID tag using stepped frequency read-out",
abstract = "This paper presents a phase-based method for obtaining the distance of an RFID tag with unknown properties. The tag's response is measured by the reader at several discrete frequencies at the threshold power of the tag. The dispersive properties of the modulated reflection coefficient of the tag are estimated from the measured power sensitivity and their effect is compensated in the distance estimation. The method is derived using a simple theoretical model for the tag and the performance of the method is experimentally verified at 860 MHz.",
keywords = "radio frequency identification, RFID, tracking, transponders, wireless sensors",
author = "Ville Viikari and Pekka Pursula and Kaarle Jaakkola",
year = "2010",
doi = "10.1109/JSEN.2010.2045497",
language = "English",
volume = "10",
pages = "1535--1539",
journal = "IEEE Sensors Journal",
issn = "1530-437X",
publisher = "Institute of Electrical and Electronic Engineers IEEE",
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}

Ranging of UHF RFID tag using stepped frequency read-out. / Viikari, Ville; Pursula, Pekka; Jaakkola, Kaarle.

In: IEEE Sensors Journal, Vol. 10, No. 9, 2010, p. 1535-1539.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Ranging of UHF RFID tag using stepped frequency read-out

AU - Viikari, Ville

AU - Pursula, Pekka

AU - Jaakkola, Kaarle

PY - 2010

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N2 - This paper presents a phase-based method for obtaining the distance of an RFID tag with unknown properties. The tag's response is measured by the reader at several discrete frequencies at the threshold power of the tag. The dispersive properties of the modulated reflection coefficient of the tag are estimated from the measured power sensitivity and their effect is compensated in the distance estimation. The method is derived using a simple theoretical model for the tag and the performance of the method is experimentally verified at 860 MHz.

AB - This paper presents a phase-based method for obtaining the distance of an RFID tag with unknown properties. The tag's response is measured by the reader at several discrete frequencies at the threshold power of the tag. The dispersive properties of the modulated reflection coefficient of the tag are estimated from the measured power sensitivity and their effect is compensated in the distance estimation. The method is derived using a simple theoretical model for the tag and the performance of the method is experimentally verified at 860 MHz.

KW - radio frequency identification

KW - RFID

KW - tracking

KW - transponders

KW - wireless sensors

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DO - 10.1109/JSEN.2010.2045497

M3 - Article

VL - 10

SP - 1535

EP - 1539

JO - IEEE Sensors Journal

JF - IEEE Sensors Journal

SN - 1530-437X

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