Rfid devices having self-compensating antennas and...

Details Rfid devices having self-compensating antennas and... Rfid devices having self-compensating antennas and...

H - Electricity

01

Q

H01Q 9/28 (2006.01) G06K 19/077 (2006.01) H01Q 1/22 (2006.01) H01Q 1/38 (2006.01)

Patent

CA 2522270

A radio frequency identification (RFID) tag includes an antenna configuration coupled to an RFID chip, such as in an RFID strap. The antenna configuration is mounted on one face (major surface) of a dielectric material, and includes compensation elements to compensate at least to some extent for various types of dielectric material upon which the antenna configuration may be mounted. In addition, a conductive structure, such as a ground plane or other layer of conductive material, may be placed on a second major surface of the dielectric layer, on an opposite side of the dielectric layer from the antenna structure.

L'invention a trait à une étiquette d'identification par radiofréquence (RFID), qui contient une structure d'antenne couplée à une puce RFID, comme dans une bande RFID. La structure d'antenne est montée sur une face (surface principale) d'un matériau diélectrique, et comprend des éléments de compensation destinés à compenser au moins dans une certaine mesure divers types de matériaux diélectriques sur lesquels la structure d'antenne peut être montée. De plus, une structure conductrice, telle qu'un plan de sol ou une autre couche de matière conductrice, peut être placée sur une seconde surface principale de la couche diélectrique, sur un côté de la couche diélectrique opposé à la structure d'antenne.

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