Non-contact label with y-shaped omnidirectional antenna

Details Non-contact label with y-shaped omnidirectional antenna Non-contact label with y-shaped omnidirectional antenna

H - Electricity

01

Q

H01Q 1/22 (2006.01) H01Q 1/50 (2006.01) H01Q 9/24 (2006.01)

Patent

CA 2582034

The invention concerns a non-contact label designed to ensure traceability of an object comprising essentially a microcircuit (16) and a Y-shaped antenna connected to the microcircuit which contains data required for the traceability of the object, readable from a reader through ultra high frequency (UHF) electromagnetic exchange. The antenna is of the dipole consisting of three main wires, a first main wire (10), a second main wire (12) forming a first dipole with the first main wire and a third main wire (14) forming a second dipole with the first main wire. The angle between the first and second main wires is equal to the angle between the first and third main wires, and the angle between the second main wire and the third main wire ranges between 60° and 180°. Each of the main wires comprises at its end a secondary wire (24, 26 or 28) perpendicular to the main wire.

Etiquette sans contact destinée à assurer la traçabilité d'un objet comprenant essentiellement un microcircuit (16) et une antenne en Y connectée au microcircuit, qui contient des informations nécessaires à la traçabilité de l'objet, pouvant être lues à partir d'un lecteur par échange d'ondes électromagnétiques à ultra haute fréquence (UHF). L'antenne est du type dipôle constituée de trois brins principaux, un premier brin principal (10), un deuxième brin principal (12) formant un premier dipôle avec le premier brin principal et un troisième brin principal (14) formant un second dipôle avec le premier brin principal. L'angle entre les premier et deuxième brins principaux est égal à l'angle entre les premier et troisième brins principaux et l'angle entre le deuxième brin principal et le troisième brin principal est compris entre 60~ et 180~. Chacun des brins principaux comporte à son extrémité un brin secondaire (24, 26 ou 28) perpendiculaire au brin principal.

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