Radio frequency identification tags with compensating elements

H - Electricity – 01 – Q

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Details

H01Q 1/22 (2006.01) G06K 7/00 (2006.01) H01Q 7/00 (2006.01)

Patent

CA 2561023

Radio frequency identification (RFID) tags include compensating elements. The compensating elements enhance the operation of a compensated RFID tag, even when in close proximity to other RFID tags, whether the other tags are compensated or uncompensated. The compensating elements can include a closed loop of conductive material added to a RFID tag antenna. The conductive loop compensates the RFID tag performance when multiple RFID tags are in close proximity, keeping the frequency response of the assembled group of tags substantially centered near the operating frequency of the RFID system.

Des étiquettes d'identification par radiofréquence (RFID) contiennent des éléments compensateurs. Les éléments compensateurs améliorent le fonctionnement d'une étiquette RFID compensée, même lorsqu'elle se trouve à proximité immédiate d'autres étiquettes RFID, que les autres étiquettes soient compensées ou non compensées. Les éléments compensateurs peuvent comprendre une boucle fermée en matériau conducteur ajoutée à une antenne d'étiquettes RFID. La boucle conductrice compense le fonctionnement de l'étiquette RFID lorsque de multiples étiquettes RFID se trouvent à proximité immédiate, gardant la réponse en fréquence du groupe assemblé d'étiquettes centrée sensiblement près de la fréquence de fonctionnement du système RFID.

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