Idemia France

Oberthur Technologies

Ahmed Ali

Olivier Bosquet

Philippe Gac

Denis Guerard

Tiphaine Groult

A chip card including a card body including a metal layer, an RF chip, and a first RF antenna placed in a cut-out zone and connected to the chip. The metal layer has two regions, the first region completely containing the cut-out zone. A first slit connects the cut-out zone to an edge of the first region, a second slit opens onto an edge of the layer or into the cut-out zone and ends in the second region. A second RF antenna allows coupling to the first antenna. The chip card includes at least one turn facing the first slit and at least one turn facing the second slit.

Chip card with radio-frequency antennas

A chip card having a card body having a metal layer that is at least partially covered by a coating that is more conductive than the metal layer, an RF chip, and a first RF antenna that is placed in a cut-out zone and connected to the chip. The metal layer includes at least one RF antenna portion that is electrically insulated from the metal layer and from the first RF antenna and that is configured to collect an image current induced by first eddy currents flowing at least over the coating of the metal layer and to allow coupling to the first antenna.

A chipcard having a card body formed by at least one dielectric layer and one metal layer, the metal layer having a cavity and an outline, the metal layer further having a slit, the card further having an antenna extending in the cavity. The card further includes at least one metal label at least partially covering the cavity and the antenna, the label being fixed onto one of the faces of the card, the metal label having a metal layer comprising a pattern having a first part formed by first etched metal lines delimiting at least one zone that is at least partially of metal, and a second part made of second etched metal lines forming only open loops.

Metallic chipcard having a metal label thereon

Disclosed is an electronic device including: a body; a module enclosed in the body; a microcircuit and a direct current source, both forming part of the body; and an electronic component forming part of the module and accessible from the exterior, the electronic component being electrically connected to the microcircuit and having to be supplied with direct current from the direct current source. The body includes a first antenna connected to the direct current source via an oscillator and the module includes a second antenna connected to the electronic component via a rectifier circuit, the first and second antennas being electromagnetically coupled, providing a wireless radio frequency power supply to the electronic component of the module from the direct current source of the body.

Electronic device including a component powered by internal electromagnetic coupling

An electronic wireless communication device () that includes first and second electronic chips (); a first antenna () electrically connected to the first electronic chip (); a second antenna () electrically connected to the second electronic chip (); and a third antenna () that is adapted to be electromagnetically coupled with the first and second antennas (). The first electronic chip () is configured to communicate with a first external terminal using a first protocol via a first antenna pair formed by the first antenna () and the third antenna (); and the second electronic chip () is configured to communicate with the first external terminal and/or a second external terminal using a second protocol via a second antenna pair formed by the second antenna () and the third antenna ().

Electronic wireless communication device having two electronic chips and a method of fabricating such a device

A module comprising a base () supporting a planar capacitor, an antenna, and a microcircuit electrically connected to each other to form a resonant electrical circuit, the capacitor including on a first face of the base a first electrode () and a second electrode () disposed on a second face opposite to said first face facing said first electrode, the second electrode and the first electrode having substantially the same shape. Each electrode has at least a first portion and a second portion disposed on either side of the turns () of said antenna.

Module equipped with a capacitor and an antenna, with improved capacitor electrode arrangement

Disclosed is an electronic entity having a transponder which includes a body provided with a recess and, inside the recess, a transponder including a mounting supporting an antenna formed by at least one turn running along the contour of the module and a microcircuit, the antenna and microcircuit being connected to one another, plates of conductive material being formed on each of the surfaces facing one another, covering 60-90% of the surface defined by the one or more turns of the antenna, forming a capacitor connected in parallel on the antenna, and the body including an annular metal area, the inner contour of which projects into the plane of the mounting surrounds the mounting and is suitable for concentrating the field lines toward the inside of the turn, the capacitor defining, with the antenna and the microcircuit, a given resonance frequency substantially equal to the frequency of an external reader.

Growing community of inventors

Colombes, France

Ahmed Ali