Transmission module for a transponder device, and also a...

Details Transmission module for a transponder device, and also a... Transmission module for a transponder device, and also a...

G - Physics

06

K

G06K 19/07 (2006.01)

Patent

CA 2279176

The invention relates to a transmission module (14) for contactless transmission of data between a chip (15) and a reading device (12) with a coil arrangement comprising a coupling element (19) and at least one antenna coil (20) that are electrically interconnected, wherein said coupling element is used to produce inductive coupling with a transponder coil (18) which is electrically connected to the chip, and the antenna coil is used to enable connection to the reading device. The coupling element embodied as a coupling coil (19) and the antenna coil (20) are configured differently with respect to the coil parameters affecting coil impedance.

L'invention concerne un module de transmission (14) pour la transmission de données sans contact entre une puce (15) et un dispositif de lecture (12) comprenant un montage à bobines qui comporte un élément de couplage (19) et au moins une bobine d'antenne (20) qui sont reliés électriquement l'un avec l'autre, l'élément de couplage servant à la réalisation d'un couplage inductif avec une bobine de transpondeur (18) reliée électriquement à la puce, et la bobine d'antenne servant à la réalisation d'une liaison avec le dispositif de lecture. L'élément de couplage, qui se présente sous la forme d'une bobine de couplage (19), et la bobine d'antenne (20) sont conçus différemment en ce qui concerne leurs paramètres de bobine influant sur l'impédance de bobine.

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