2022
DOI: 10.1109/jrfid.2022.3182894
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HF RFID Tag Location Using Magneto-Inductive Waves

Abstract: Location of passive RFID tags in the HF regime presents significant problems, because of the absence of radiating fields at the low frequencies involved. Here we present a solution for one-dimensional localization based on magneto-inductive (MI) waves. Passive tags are interrogated using a travelling wave antenna based on a MI waveguide, a magnetically coupled array of 𝑳 − 𝑪 resonators supporting travelling waves. Load modulation signals generated by the tag during its unique identifier response are coupled … Show more

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Cited by 6 publications
(7 citation statements)
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“…If a waveguide antenna is used, its dispersion should be minimized to prevent signal distortion. On the other hand, the localization method of [34] relies on being able to detect the difference in arrival times of transponder signals. To maximize this difference, the group velocity of the waveguide should be minimized.…”
Section: B Loaded Transmission Linesmentioning
confidence: 99%
See 4 more Smart Citations
“…If a waveguide antenna is used, its dispersion should be minimized to prevent signal distortion. On the other hand, the localization method of [34] relies on being able to detect the difference in arrival times of transponder signals. To maximize this difference, the group velocity of the waveguide should be minimized.…”
Section: B Loaded Transmission Linesmentioning
confidence: 99%
“…This section discusses experiments on localization of NFC transponders by time-of-arrival difference. The localization method was introduced in [34]. Figure 9 shows a functional block diagram of the system; the previous Fig.…”
Section: Near-field Localization With One-dimensional Antennasmentioning
confidence: 99%
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