Rfid tag with enhanced readability

Details Rfid tag with enhanced readability Rfid tag with enhanced readability

G - Physics

06

K

G06K 19/077 (2006.01) H01Q 13/10 (2006.01)

Patent

CA 2544792

A radio frequency identification (RFID) device (10) includes a conductive antenna structure (12) having an elongated slot (30) therein. Parts of the antenna structure on both sides of one end of the elongated slot are coupled to a wireless communication device, such as an RFID chip (14) or interposer. On the opposite end (36) of the elongated slot, parts of the antenna structure at both sides of the elongated slot are electrically coupled together, for instance by being coupled together by other conductive parts (38) of the antenna structure (12). All of the parts of the antenna structure may be parts of a continuous unitary layer of conductive material. The antenna structure with the elongated slot therein may facilitate increased readability of the RFID device, particularly in directions out from the edges of the RFID device.

Un dispositif d'identification de radiofréquence (RFID) (10) comprend une structure d'antenne conductrice (12) ayant une fente allongée (30). Les parties de la structure d'antenne de part et d'autre d'une extrémité de la fente allongée sont couplées à un dispositif de communication sans fil, notamment une puce RFID (14) ou un interposeur. Sur l'extrémité opposée (36) de la fente allongée, des parties de la structure d'antenne de part et d'autre de la fente allongée sont couplées électriquement ensemble, par couplage au moyen d'autres parties conductrices (38) de la structure d'antenne (12). Toutes les parties de la structure d'antenne peuvent être des parties d'une couche unitaire continue d'une matière conductrice. La structure d'antenne présentant la fente allongée peut faciliter la capacité de lecture accrue du dispositif RFID, particulièrement dans les directions s'éloignant des bords du dispositif RFID.

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