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EP3391461B1 - Drahtloskommunikationsmodul, platte zur verwendung bei der herstellung des besagten moduls und verfahren zur herstellung des besagten moduls - Google Patents

Drahtloskommunikationsmodul, platte zur verwendung bei der herstellung des besagten moduls und verfahren zur herstellung des besagten moduls Download PDF

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Publication number
EP3391461B1
EP3391461B1 EP16825851.5A EP16825851A EP3391461B1 EP 3391461 B1 EP3391461 B1 EP 3391461B1 EP 16825851 A EP16825851 A EP 16825851A EP 3391461 B1 EP3391461 B1 EP 3391461B1
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EP
European Patent Office
Prior art keywords
antenna
winding
windings
fold line
substrate
Prior art date
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Application number
EP16825851.5A
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English (en)
French (fr)
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EP3391461A1 (de
Inventor
Ahmed Ali
Tiphaine GROULT
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Idemia France SAS
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Idemia France SAS
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Publication of EP3391461A1 publication Critical patent/EP3391461A1/de
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/2208—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems
    • H01Q1/2225—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems used in active tags, i.e. provided with its own power source or in passive tags, i.e. deriving power from RF signal

Definitions

  • the present invention relates to wireless communication modules, for example of the RFID (“Radio Frequency ID entity”) type.
  • the present invention further relates to plates suitable for use in the manufacture of such wireless communication modules and to a method of manufacturing such wireless communication modules.
  • RFID technology is widely used today in payment, identification and secure access applications.
  • the figure 1 shows a wireless communication module 100 comprising a substrate 102 on which are mounted an electronic chip 104 (or integrated circuit) and an antenna 106.
  • the antenna 106 takes the form of a winding 108 comprising at least one turn 110 of the form generally square or rectangular.
  • the outer coil 110 that is to say the coil 110 closest to the edge of the substrate 102, is of dimensions a and b.
  • the electronic chip 104 is capable, using the antenna 106 to which it is connected, of communicating with a transceiver (more generally called a “reader”), that is to say capable of receiving requests. transmitted from this transceiver and respond to these requests.
  • a transceiver more generally called a “reader”
  • the figure 2 represents an electrical diagram corresponding to the wireless communication module 100 of the figure 1 .
  • This electrical diagram comprises an RLC circuit 200 corresponding to the antenna 106.
  • This RLC circuit 200 comprises a resistor 202 connected in series with a coil 204 and a capacitor 206.
  • the electrical diagram also comprises an RC circuit 210 corresponding to the integrated circuit 104
  • This RC circuit 210 connected in parallel to the RLC circuit 200, comprises a resistor 212 connected in parallel to a capacitor 214.
  • Wireless communication modules are often incorporated into small portable devices, such as bracelets, watches and key chains. These portable devices can include other electronic circuits and sensors. The space available in these portable devices for the wireless communication modules is therefore reduced, and varies depending on the device. There is thus a strong demand for wireless communication modules of small size, which can be integrated into any type of portable device.
  • the wireless communication modules are a real challenge, because the communication between the modules and the readers is governed by standards, such as the ISO 14443 standard for high frequency RFID type modules.
  • the antennas must therefore be designed so that the wireless communication modules can communicate at communication frequencies defined by these standards and can maintain the communication performance defined by these standards.
  • the physical parameters of the antenna such as its external and internal dimensions, its number of turns or the distance between two adjacent turns, influence the resistance, inductance and capacitance values of the antenna (cf. RLC 200 circuit shown in figure 2 ), which define the value of the communication frequency of the wireless communication module.
  • the engraving technology forming a printed circuit, is a high precision technology (tolerance of 100 micrometers) making it possible to exploit a large proportion of the surface on which the metal is engraved.
  • the document US 2011/0169702 describes an antenna module for producing a transponder.
  • the document US 2006/0237544 describes an antenna circuit for an integrated circuit card or tag.
  • the invention makes it possible to manufacture a wireless communication module having a limited size and an antenna having good performance.
  • the communication module can thus have a very high number of configurations.
  • the number of windings, the order of folding, the thickness of the substrate, the relative alignment after folding of the turns of one winding relative to the turns of another winding can be chosen to modify the parameters of the antenna. , while accepting the constraints of the dimensions of the substrate. It is for example possible to provide a large number of windings, for example greater than two.
  • the invention offers a wide range of adjustment of the resistance, inductance and capacitance values of the antenna, which makes it possible to improve the performance of the antenna.
  • the arrangement of windings on different portions allows, when the plate is folded along the fold line assembly to form a wireless communication module, to create additional capacity.
  • This additional capacity makes it possible to compensate for the low inductance generated by the small dimensions of the antenna without increasing the resistance, and thus makes it possible to adjust the value of the communication frequency of the wireless communication module without adding an additional turn.
  • the invention makes it possible to overcome the problems of manufacturing tolerance.
  • the number of windings is no longer limited, it is possible not to use the entire useful surface of the substrate for forming the turns of the windings.
  • the dimensions of the peripheral coil can also be reduced.
  • the arrangement of the antenna and in particular of the ends of the antenna simplifies the manufacture of the plate, and therefore of the communication module for which the plate is used.
  • This arrangement makes it possible, for example, to dispense with a second substrate used to connect the electronic chip to the ends of the antenna, or even operations for drilling holes in a substrate in order to position the antenna on both sides of the substrate.
  • the arrangement of the two ends of the antenna makes it possible to easily electrically connect the two ends to the electronic chip.
  • the electrical insulation of at least part of the antenna surface facilitates the positioning of the antenna.
  • the connections between two windings or between a winding and one end can pass through winding turns without creating short circuits, because there is no electrical contact at the point of intersection of the turn and the connection. .
  • Great liberties are thus offered as regards the design of the antenna, which makes it possible to easily position the two ends on the same portion of the plate, for example within the same winding.
  • the plate is suitable for use in the manufacture of a module as described below.
  • the substrate has dimensions less than or equal to a quarter of the ID-1 format.
  • the invention is in fact particularly advantageous for small-sized communication modules.
  • the antenna has the same construction over its entire length.
  • the windings are formed on the same face of the substrate.
  • the formation of the plurality of windings on the same face of the substrate facilitates and increases the speed of the manufacture of the plate, and therefore of the wireless communication module.
  • the antenna is incorporated in the substrate.
  • the two ends are positioned inside the same winding of the plurality of windings.
  • two turns of the plurality of windings are arranged substantially symmetrically with respect to said fold line.
  • each fold line of the fold line assembly separating two portions each comprising a winding
  • the direction of flow of the current in the turns of said windings is symmetrical with respect to said fold line.
  • the symmetry of the direction of current flow allows, when the plate is folded according to the fold line assembly in order to manufacture a wireless communication module, that when a current flows through the antenna, the current flows in the same sense in each turn.
  • the flow of current in the same direction in each turn of the antenna makes it possible to add the magnetic field fluxes passing through the various windings and therefore to increase the current induced in the antenna.
  • At least one portion comprises a winding having a turn following the contour of said portion.
  • the minimum distance between two turns of the same winding is 100 micrometers.
  • the dimensions of the module made from the plate are reduced, and the module can be incorporated into portable devices of small dimensions.
  • the plate comprises at least three portions each comprising a winding.
  • the module is made from the plate as described above.
  • the substrate and the antenna of the module correspond respectively to the substrate and to the antenna of said plate, the substrate having been folded.
  • the windings are arranged so that when a current flows in the antenna, the current flows in the same direction in each turn.
  • an insulating layer is positioned between at least two of the layers formed by the folding of said substrate.
  • the module operates at a communication frequency of 13.56 MHz.
  • two turns of the plurality of windings are superimposed.
  • the method is a method for manufacturing the module described above.
  • the method further comprises the lamination of the plurality of superimposed layers.
  • the supply step comprises a step of forming an antenna comprising a continuous deposition of the wire on the substrate.
  • the present invention relates to wireless communication modules, for example of the RFID (“Radio Frequency ID entity”) type.
  • the present invention further relates to plates suitable for use in the manufacture of such wireless communication modules and to a method of manufacturing such wireless communication modules.
  • a plate 300 comprising a substrate 302 delimited by edges 302a, 302b, 302c, 302d, and an antenna 304 having a surface at least partially electrically isolated.
  • the antenna 304 comprises two ends 306, 308 adapted to be connected to an electronic chip 310, and a plurality of windings 312, 314, 516, 718, each comprising at least one turn 320, for example a plurality of turns 320.
  • the windings 312, 314, 516, 718 can have the same number of turns or a different number of turns.
  • the general shape of the turns 320 is for example square or rectangular.
  • the plate 300 comprises a plurality of portions 330, 332, 534, 636 delimited by a fold line assembly comprising at least one fold line 340, 510 and by the edges 302a, 302b, 302c, 302d of the substrate 302, so that at least two of the portions 330, 332, 534, 636 each comprise at least one winding 312, 314, 516, 718, and that the two ends 306, 308 are arranged at the same portion 330.
  • windings 312, 314, 516, 718 on different portions 330, 332, 534, 636 allows, when the plate 300 is folded along the fold line assembly in order to manufacture a wireless communication module, to create additional capacity.
  • Each turn 320 of a winding 312, 314, 516, 718 facing a turn 320 of another winding 312, 314, 516, 718 when the plate 300 is folded creating an individual capacity the capacity additional is equal to the sum of the individual capacities. This additional capacity makes it possible to compensate for the low inductance generated by the small dimensions of the antenna.
  • a capacitor is formed between two wires extending in parallel and traversed by a current.
  • the stack of layers formed by the portions 330, 332, 534, 636, comprising windings 312, 314, 516, 718 formed from conductive wire, makes it possible to achieve an additional capacity through the thickness of the substrate 302. The distance, wire diameter and the material separating the wires influence the value of the additional capacitance.
  • the additional capacity created during the folding of the plate may be twenty picofarads.
  • the figure 16 represents an electrical diagram corresponding to a module made from the folding of a plate 300.
  • This electrical diagram comprises an RLC 1600 circuit corresponding to the antenna 304.
  • This RLC 1600 circuit comprises a resistor 1602 connected in series with a coil 1604 and a capacitor 1606.
  • An additional capacitor 1607, representing the additional capacitance, is connected in parallel across the terminals of the capacitor 1606.
  • the electric diagram further includes an RC 1610 circuit corresponding to the electronic chip 310.
  • This RC 1610 circuit connected in parallel to the terminals of the additional capacitor 1607, has a resistor 1612 connected in parallel to a capacitor 1614.
  • the arrangement of the antenna 304 and in particular of the ends 306, 308 of the antenna 304 simplifies the manufacture of the plate 300, and therefore of the communication module for which the plate 300 is used.
  • This arrangement makes it possible, for example, to dispense with a second substrate used to connect the electronic chip to the ends of the antenna, or even operations for drilling holes in a substrate in order to position the antenna on both sides of the substrate. .
  • the substrate 302 is in the form of a plate, comprising for example two opposite faces and four edges 302a, 302b, 302c, 302d connecting said opposite faces.
  • the opposite faces are square or rectangular in shape.
  • the portions 330, 332, 534, 636, depending on the positioning of the fold line or lines 340, 542, can thus have a square or rectangular surface, and have the same dimensions.
  • the substrate 302 can be plastic, for example PVC (polyvinyl chloride), or else PET (polyethylene terephthalate).
  • the dimensions of the substrate 302 are less than or equal to a quarter of the ID-1 format (85.6 millimeters by 53.98 millimeters) defined by the ISO 7810 standard.
  • Each fold line 340, 542 can be formed by thinning the material of the substrate 302, or by folding and unfolding the substrate 302.
  • each winding 312, 314, 516, 718 is connected to a end 306, 308 and another winding 312, 314, 516, 718 or is connected to two other windings 312, 314, 516, 718.
  • the connection between a winding 312, 314, 516, 718 and another winding 312, 314, 516, 718 or an end 306, 308 is provided by a link 350, 352, 354, 556, 758.
  • the link 350, 352, 354, 556, 758 is for example a conductive element extending between two windings 312, 314, 516, 718 or between a winding 312, 314, 516, 718 and one end 306, 308.
  • the link 350, 352, 354, 556, 758 is for example a section common to two windings 312, 314, 516, 718.
  • the link 350, 352, 354, 556, 758 connecting two windings 312, 314, 516, 718 crosses a fold line 340, 510.
  • the antenna 304 has the same constitution over its entire length, that is to say the same composition of matter.
  • the antenna 304 is formed by a conductive element, for example a metal wire.
  • the material of this conductive element is for example copper.
  • the windings 312, 314, 516, 718 and the links 350, 352, 354, 556, 758 are then formed from the same metal wire, and the ends 306, 308 of the antenna 304 are the two ends of the metal wire.
  • the antenna 304 is formed by a plurality of conductive elements, for example a plurality of metal wires such as the metal wire described above.
  • Each winding 312, 314, 516, 718 can then be formed by a different metal wire, and be connected in series with another winding 312, 314, 516, 718 and one end 306, 308, or connected in series with two other windings 312, 314, 516, 718 in particular by means of links 350, 352, 354, 556, 758.
  • the antenna 304 is then formed of a continuous wire of material or of a set of conductive elements physically connected to each other and which follow one another so that the entire antenna 304 is mounted on the substrate 302, for example on the same face of substrate 302.
  • the external surface of the antenna 304 is for example at least partially electrically isolated, for example electrically isolated.
  • the metal wire may for this purpose comprise a sheath of insulating material over part or all of its length, or be an enamelled metal wire, for example by a plastic layer (eg polyurethane).
  • the electrical insulation of the surface of the antenna 304 facilitates the positioning of the antenna 304.
  • the links 350, 352, 354, 556, 758 can pass through the winding turns 320 312, 314, 516, 718. without creating short circuits, because there is no electrical contact at the point of intersection of the coil 320 and the link 350, 352, 354, 556, 758.
  • Great liberties are thus offered as regards the design of the antenna 304, which makes it possible to easily position the two ends 306, 308 on the same portion 330, 332, 534, 636 of plate 300 , for example inside the same winding 312, 314, 516, 718.
  • the antenna 304 is positioned on the substrate 302. More precisely, the two ends 306, 308 can be arranged at the same face of the same portion 330.
  • the windings 312, 314, 516, 718 or any the antenna 304 can be positioned on the same face of the substrate 302.
  • the production of the plate 300 and therefore of the communication module for which the plate 300 is used is facilitated.
  • the windings 312, 314, 516, 718 are not all positioned on the same face of the substrate 302.
  • the wire is fixed to one face of the substrate 302, for example by gluing points.
  • the attachment of the antenna 304 is then improved during a lamination which will be described later.
  • the antenna 304 is partially incorporated into the substrate 302. More precisely, the antenna 304 is partially incorporated into the substrate 302, at the same face of the substrate 302.
  • the metal wire can be embedded in the substrate 302 by means of a technique using ultrasound. The wire is for example encrusted up to about half of its diameter.
  • At least one of the portions 330, 332, 534, 636 of the plate 300 may include a winding 312, 314, 516, 718 having a turn 320 following the contour of said portion 330, 332, 534, 636, that is to say along the edges 302a, 302b, 302c, 302d and the at least one fold line 340, 542 defining the portion 330, 332, 534, 636.
  • the winding 312, 314, 516, 718 thus comprises an outer (or peripheral) turn 320 positioned near the contour of said portion 330, 332, 534, 636 so as to delimit, in top view of the plate 300, a surface having dimensions which are as large as possible.
  • external turn or peripheral turn, is meant the turn 320 of the winding 312, 314, 516, 718 closest to the edges 302a, 302b, 302c, 302d of the substrate 302 and to the fold line 340, 542 defining the portion 330, 332, 534, 636 including turn 320.
  • manufacturing tolerances imply that outer turn 320 is positioned approximately more than 500 microns from the contour of portion 330, 332, 534, 636.
  • the dimensions of the outer coil 320 are equal to a quarter of the maximum dimensions of a “Class 1” antenna, the maximum dimensions being defined by the ISO 14443 standard as being 81 millimeters by 49 millimeters.
  • the minimum distance between two turns 320 of the same winding 312, 314 is 100 micrometers.
  • two sections of two turns 320 or two turns 320 of the plurality of windings 312, 314, 516, 718 can be arranged symmetrically with respect to each other. to this fold line 340, 542.
  • Said two turns 320 are for example two outer turns 320 of two windings 312, 314, 516, 718 positioned on two portions 330, 332, 534, 636 separated by a fold line 340, 542 Alternatively or in addition, for at least one fold line 340, 542 of the fold line assembly, the windings 312, 314, 516, 718 can be arranged symmetrically with respect to this fold line 340, 542 .
  • the figures 8A, 8B and 8C are diagrams showing how the windings 312, 314, 516, 718 can be arranged and connected by the links 350, 556, 758 on the substrate 302 so that for each fold line 340, 542 of the fold line assembly separating two portions each comprising a winding 312, 314, 516, 718, when a current flows in the antenna 304, the direction of flow of the current in the turns 320 of said windings 312, 314, 516, 718 is symmetrical with respect to said fold line 340, 542.
  • These figures 8A, 8B and 8C show windings 312, 314, 516, 718 comprising a turn and forming part of the antenna. These figures do not show the entire antenna, in particular not the ends of the antennas. However, it will be understood that windings comprising a plurality of turns and the ends of the antennas have not been shown solely for reasons of readability.
  • the symmetry of the direction of current flow allows, when the plate 300 is folded along the fold line assembly to fabricate a wireless communication module, that when a current flows through the antenna 304, the current flows through it. the same direction in each turn 320.
  • the flow of current in the same direction in each turn 320 of the antenna 304 makes it possible to add the magnetic field fluxes passing through the different windings 312, 314, 516, 718 and therefore increase the current induced in the antenna 304.
  • the figures 9A and 9B show windings 900, 902, 904, 906 positioned and connected by links 910, 912 so as not to allow, when a current flows in the antenna, that the direction of current flow in the turns of said windings is symmetrical with respect to fold lines 340, 542.
  • the electronic chip 310 can be positioned on the same portion 330 as the two ends 306, 308 of the antenna 304 (cf. figures 3 to 7 ).
  • the two ends 306, 308 of the antenna 304 can thus be easily electrically connected to the electronic chip 310.
  • the plate 300 can thus include the electronic chip 310, or not include it.
  • the electronic chip 310 is preferably positioned inside a winding 312.
  • the two ends 306, 308 of the antenna 304 are also positioned inside this same winding 312.
  • the configuration of the plate 300 makes it possible to choose a number of windings 312, 314, 516, 718 and of turns 320 per winding 312, 314, 516, 718 allowing to manufacture a wireless communication module operating at a predetermined frequency, that is, that is to say, making it possible to generate a sufficient current in order to activate the electronic chip 310 at said frequency, with a minimum activation field (for a form factor of the antenna defined by the dimensions of the external coil) .
  • the configuration of the plate 300 in a plurality of portions 330, 332, 534, 636 which can be folded over one another makes it possible to reduce the number of turns 320 per portion 330, 332, 534, 636.
  • This reduction in the number of turns 320 leads to a reduction in the resistance of the module created from the plate 300, and thus makes it possible to limit the loss of energy during the flow of current in the turns 320.
  • the threshold field, c ' that is to say the field from which the electronic chip 310 is activated (measured in A / m) is then improved, as well as the range of the threshold field.
  • the reduction in the number of turns 320 per winding 312, 314, 516, 718 makes it possible to increase the effective area of the antenna 304, defined by the turn 320 of the windings 312, 314 having the smallest dimensions. Therefore, the magnetic flux passing through the antenna 304 is increased, as it depends on the area it passes through.
  • Table 1 below shows antenna designs for obtaining an OFF state frequency (ie a frequency from which the microchip is no longer activated) of approximately 14.2 Megahertz and a field threshold of about 3 A / m.
  • the “antenna 1” corresponds to a conventional antenna comprising a winding having an outer turn of 25 millimeters by 15 millimeters.
  • the “antenna 2” corresponds to an antenna of a module according to an exemplary embodiment of the invention comprising two windings each having an external turn of 25 millimeters by 15 millimeters.
  • the “antenna 3” corresponds to an antenna of a module according to an exemplary embodiment of the invention comprising three windings each having an external turn of 25 millimeters by 15 millimeters.
  • This table 1 shows that the reading distance increases and that the threshold field decreases when using antennas comprising several windings and having external turns of the same size as the external turn of the antenna comprising a single winding.
  • the figure 3 describes the plate 300 according to an exemplary embodiment of the invention.
  • the antenna 304 has a first winding 312 and a second winding 314.
  • Each winding 312, 314 has two turns 320.
  • each winding 312, 314 may have a number of turns greater than or equal to one and different from two, for example three or four, this number possibly being different depending on the winding 312, 314.
  • the plate 300 comprises two portions 330, 332 delimited by the four edges 302a, 302b, 302c, 302d of the substrate 302 and a set of fold lines comprising a fold line 340. More specifically, the plate 300 comprises a first portion 312, delimited by the right edge 302a of the substrate 302, the fold line 340, which for example extends substantially parallel to the right edge 302a, a first part of the top edge 302d connecting the right edge 302a and the fold line 340, and a first part of the bottom edge 302b connecting the right edge 302a and the fold line 340.
  • the plate 300 further comprises a second portion 314, delimited by the left edge 302c of the substrate 302, the fold line 340, a second part of the edge top 302d connecting the left edge 302c and the fold line 340, and a second part of the bottom edge 302b connecting the left edge 302c and the fold line 340.
  • the portions 330 and 332 can have substantially the same dimensions.
  • top, bottom, right, left is meant four different orientations with respect to the plate seen from above.
  • top and bottom is meant two opposite directions of the same so-called vertical direction.
  • above is meant higher in the vertical direction.
  • below is meant lower in the vertical direction.
  • right and left is meant two opposite directions of the same so-called horizontal direction, the vertical and horizontal directions being substantially orthogonal in the plane of the face of the plate considered.
  • the first portion 330 comprises the first winding 312 and the second portion 332 comprises the second winding 314, the two ends 306, 308 being arranged at the same portion, for example at the level of the first portion 330 comprising the first winding 312.
  • Each winding 312, 314 is connected to a respective end 306, 308, for example the winding 312 is connected to the end 308 and the winding 314 is connected to the end 306.
  • the winding 314 is for example connected to the end 306 by a link 352 which crosses the fold line 340, for example substantially in its middle and one or more turns 320, for example by extending in a direction substantially parallel to the top edge 302d or to the bottom edge 302b.
  • the winding 312 is for example connected to the end 308 by a link 354, which may not pass through a turn 320.
  • the two windings 312, 314 are connected to each other by a link 350.
  • the link 350 crosses the fold line 340.
  • the link 350 comprises for example a part extending substantially between the bottom edge 302b and the top edge 302d, this part for example crossing the fold line 340 substantially in its middle.
  • the electronic chip 310 can be positioned on the portion 312 comprising the ends 306, 308.
  • a plurality of sections of the two windings 312, 314 are arranged symmetrically with respect to the fold line 340.
  • two turns, each of one of the two windings 312, 314 are arranged symmetrically with respect to the line. of folding 340.
  • only the outer turns 320 can be symmetrical, because, for example, these two windings 312, 314 do not have the same number of turns 320.
  • the two windings 312, 314 may comprise the same number of turns 320, each turn 320 of one of the windings 312, 314 having substantially the same dimensions and the same positioning on the portion 330, 332 comprising said winding 312, 314 as a turn 320 of the other winding 312, 314 on the other portion 330, 332.
  • the two windings 312, 314 are not arranged symmetrically with respect to the fold line 340.
  • the antenna 304 is positioned on the substrate 302 so that, for the fold line 340 separating the two portions 330, 332, when a current flows in the antenna 304, the direction of flow of the current in the turns 320 of the windings 312, 314 is symmetrical with respect to the fold line 340. In other words, in top view, when current flows counterclockwise in winding 312, it flows clockwise in winding 314. This is in particular permitted by the arrangement of link 350.
  • the configuration of the plate 300 in two portions 330, 332 each comprising a winding 312, 314 and which can be folded over one another makes it possible to position half the number of turns 320 on each portion 330, 332 than on a conventional plate. comprising a single portion having the same dimensions as a portion 330, 332 of the plate 300.
  • the dimensions a and b of the outer coil 110 of the module 100 of the figure 1 are the same as the dimensions a and b of the outer turns of the windings 312, 314 of the plate 300 of the figure 3 , and the module 100 has four turns. It is thus possible to position two turns 320 on each portion 312, 314 of the plate 300, the two turns 320 having the dimensions of the two largest turns of the module 100.
  • the effective area of the antenna 304, defined by the turn 320 windings 312, 314 having the smallest dimensions, is then greater than the effective area of the antenna of the module 100, which makes it possible to reduce the threshold field and to improve the performance of the antenna.
  • the configuration of the plate in two portions 330, 332 each comprising a winding 312, 314 and being able to be folded one on the other also makes it possible to reduce the dimensions of the antenna 304 while maintaining the same performances of the antenna 304.
  • the figure 4 shows for example a plate 300 different from the plate 300 of the figure 3 in that each winding 312, 314 has four turns and in that the length a 'of the section of the outer turn following the straight edge 302a is equal to the length a of the section of the outer turn of the figure 3 along the right edge 302a divided by two.
  • the figure 5 describes the plate 300 according to another exemplary embodiment of the invention.
  • the antenna 304 has a first winding 312, a second winding 314, and a third winding 516.
  • the plate 300 comprises three portions 330, 332, 534 delimited by the four edges 302a, 302b, 302c, 302d of the substrate 302 and a set of fold lines comprising two fold lines 340, 542.
  • the first portion 312 is delimited by the right edge 302a of the substrate 302, the first fold line 340, which extends for example substantially parallel to the right edge 302a, a first part of the top edge 302d connecting the right edge 302a and the fold line 340, and a first portion of the bottom edge 302b connecting the straight edge 302a and the fold line 340.
  • the second portion 314 is delimited by the first fold line 340, the second fold line 542, a second part of the top edge 302d connecting the first fold line 340 to the second fold line 542, and a second part of the bottom edge 302b connecting the first fold line 340 to the second fold line 542.
  • the third portion 516 is delimited by the second fold line 542 the left edge 302c of the substrate 302, a third part of the top edge 302d connecting the second fold line 542 to the left edge 302c, and a third part of the bottom edge 302b connecting the second fold line 542 at left edge 302c.
  • the first portion 330 comprises the first winding 312, the second portion 332 comprises the second winding 314, and the third portion 534 comprises the third winding 516.
  • the two ends 306, 308 are disposed at the level of the first portion 330 comprising the first winding 312.
  • the first winding 312 is connected to the end 308, for example by a link 354.
  • the link 354 does not pass through a turn 320.
  • the first winding is further connected to the second winding 314, for example by a link 350.
  • the link 350 crosses the fold line 340.
  • the link 350 comprises for example a part extending substantially between the bottom edge 302b and the top edge 302d, this part for example crossing the fold line 340 substantially in its middle.
  • the second winding is further connected to the third winding 516, for example by a link 556.
  • the link 556 crosses the fold line 542.
  • the link 556 extends for example substantially between the bottom edge 302b and the top edge 302d, this part crossing for example the fold line 542 substantially in its middle.
  • the third winding 516 is connected to the end 306, for example by a link 352 which crosses the fold lines 340, 542 and several turns 320.
  • the link 352 in one example crosses the fold lines 340, 542 substantially in their centers, and may extend in a direction substantially parallel to the top edge 302d or to the bottom edge 302b.
  • the electronic chip 310 can be positioned on the portion 312 comprising the ends 306, 308.
  • a plurality of sections of the first and second windings 312, 314 are arranged symmetrically with respect to the fold line 340.
  • two turns 320, each of one of the two windings 312, 314 can be arranged symmetrically by with respect to the fold line 340.
  • a plurality of sections of the second and third windings 314, 516 are disposed symmetrically with respect to the fold line 542.
  • two turns 320, each of one of the two windings 314, 516 can be arranged symmetrically with respect to the fold line 542.
  • the three windings 312, 314, 516 can comprise the same number of turns 320, each turn 320 of one of the windings 312, 314, 516 having substantially the same dimensions and the same positioning on the portion 330, 332, 534 comprising said winding 312, 314, 516 than a turn 320 of the other windings 312, 314 on the other portions 330, 332, 534.
  • the two windings 312, 314 are not arranged symmetrically with respect to the fold line 340, because, for example, these two windings 312, 314 do not have the same number of turns 320.
  • the two windings 314, 516 are not arranged symmetrically with respect to the fold line 542, because, for example, these two windings 314, 516 do not have the same number of turns 320. In one example, only the outer turns 320 can be symmetrical.
  • the antenna 304 is positioned on the substrate 302 so that, for the fold line 340 separating the two portions 330, 332, when a current flows in the antenna 304, the direction of flow of the current in the turns 320 of the windings 312, 314 is symmetrical with respect to the fold line 340. In other words, in top view, when current flows counterclockwise in winding 312, it flows clockwise in winding 314. This is in particular permitted by the arrangement of link 350.
  • the antenna 304 is further positioned on the substrate 302 so that, for the fold line 542 separating the two portions 332, 534, when a current flows in the antenna 304, the direction of flow of the current in the turns 320 of the windings 314, 516 is symmetrical with respect to the fold line 542. In other words, when viewed from above, when the current flows clockwise in the winding 314, it flows counterclockwise in the winding 516. This is in particular permitted by the arrangement of link 556.
  • the figure 6 describes the plate 300 according to another exemplary embodiment of the invention.
  • the antenna 304 has a first winding 312, a second winding 314, and a third winding 516.
  • the plate 300 comprises four portions 330, 332, 534, 636 delimited by the four edges 302a, 302b, 302c, 302d of the substrate 302 and a set of fold lines comprising two fold lines 340, 542.
  • the first fold line 340 extends from the top edge 302d to the bottom edge 302b and the second fold line 542 extends from the left edge 302c to the right edge 302a crossing the first fold line 340, so as to form the four portions 330, 332, 534 , 636.
  • the first portion 330 is positioned to the right of the first fold line 340 and above the second fold line 542.
  • the second portion 332 is positioned to the left of the first fold line 340 and above the second line fold 542.
  • the third portion 534 is positioned to the right of the first fold line 340 and below the second fold line 542.
  • the fourth portion 636 is positioned to the left of the first fold line 340 and below of the second fold line 542.
  • the top edge 302d is substantially parallel to the bottom edge 302b and the second fold line 542, and is substantially perpendicular to the left edge 302c, which is substantially parallel to the right edge 302a and the first fold line 340.
  • the first fold line 340 may extend substantially from the middle of the top edge 302d to the middle of the bottom edge 302b and the second fold line may extend substantially from the middle of the right edge 302a to the middle of the left edge 302c, so that the four portions 330, 332, 534, 636 have substantially the same dimensions.
  • the first portion 330 comprises the first winding 312, the second portion 332 comprises the second winding 314, and the third portion 534 comprises the third winding 516.
  • the two ends 306, 308 are disposed at the level of the first portion 330 comprising the first winding 312.
  • the fourth portion 636 has no winding.
  • the first winding 312 is connected to the end 308, for example by a link 354. In one example, the link 354 does not pass through a turn 320.
  • the first winding 312 is further connected to the second winding 314, for example by a link 350.
  • the link 350 passes through the first fold line 340.
  • the link 350 comprises for example a part extending substantially between the second fold line 542 and the top edge 302d, this part passing for example through the part of the first line fold 340 between the top edge 302d and the second fold line 542 substantially in its middle.
  • the second winding 314 is further connected to the third winding 516, for example by a link 556.
  • the link 556 crosses the first fold line 340 and the second fold line 542, and can also pass through one or more turns 320.
  • the link 556 extends for example from the end of a turn 320 inside the second winding 314 and near the fold lines 340, 542 (at least at about 500 micrometers), at the start of the outer turn 320 of the third winding 516 near the fold lines 340, 542.
  • the third winding 516 is connected to the end 306, for example by a link 352 which crosses the second fold line 542 and can pass through one or more turns 320.
  • the link 352 in one example crosses the second fold line 542 close to the first fold line 340, and may extend in a direction substantially parallel to the first fold line 340.
  • the electronic chip 310 can be positioned on the first portion 312 comprising the ends 306, 308.
  • a plurality of sections of the first and second windings 312, 314 are arranged symmetrically with respect to the first fold line 340.
  • two turns 320, each of one of the two windings 312, 314 can be arranged symmetrically. relative to the first fold line 340.
  • a plurality of sections of the first and third windings 312, 516 are arranged symmetrically with respect to the second fold line 542.
  • two turns 320, each of one of the two windings 312, 516 can be arranged symmetrically with respect to the second fold line 542.
  • the three windings 312, 314, 516 can comprise the same number of turns 320, each turn 320 of one of the windings 312, 314, 516 having substantially the same dimensions and the same positioning on the portion 330, 332, 534 comprising said winding 312, 314, 516 than a turn 320 of the other windings 312, 314, 516 on the other portions 330, 332, 534.
  • the three windings 312, 314, 516 are not arranged symmetrically with respect to the fold lines 340, 542 because, for example, these three windings 312, 314, 516 do not have the same number of turns 320. In one example, only the outer turns 320 are symmetrical.
  • the antenna 304 is positioned on the substrate 302 so that, for the first fold line 340 separating the first portion 330 and the second portion 332, when a current is flowing through the antenna 304, the direction of current flow in the turns 320 of the windings 312, 314 is symmetrical with respect to the first fold line 340.
  • the direction of current flow in the turns 320 of the windings 312, 314 is symmetrical with respect to the first fold line 340.
  • the current flows counterclockwise in the winding 312, it flows in the opposite direction. clockwise in winding 314. This is in particular permitted by the arrangement of link 350.
  • the antenna 304 is further positioned on the substrate 302 so that, for the second fold line 542 separating the first portion 332 and the third portion 534, when a current is flowing through the antenna 304, the direction of flow of the current in the turns 320 of the windings 312, 516 is symmetrical with respect to the fold line 542. In other words, in top view, when the current flows counterclockwise in the winding 312, it flows in the clockwise in the winding 516. This is in particular permitted by the arrangement of the link 556.
  • the portion 636 not comprising a winding can be cut in order to limit the thickness of the module after folding, or kept insofar as it has a small thickness and participates in the adjustment of the parameters, in particular the capacitance, of the antenna. .
  • the figure 7 describes the plate 300 according to another exemplary embodiment of the invention.
  • the antenna 304 has a first winding 312, a second winding 314, a third winding 516, and a fourth winding 718.
  • the plate 300 comprises four portions 330, 332, 534, 636 delimited by the four edges 302a, 302b, 302c, 302d of the substrate 302 and a set of fold lines comprising two lines of fold 340, 542.
  • the first fold line 340 extends from the top edge 302d to the bottom edge 302b and the second fold line 542 extends from the left edge 302c to the right edge 302a crossing the first fold line 340, from so as to form the four portions 330, 332, 534, 636.
  • the first portion 330 is positioned to the right of the first fold line 340 and above the second fold line 542.
  • the second portion 332 is positioned to the left of the first fold line 340 and above the second line fold 542.
  • the third portion 534 is positioned to the right of the first fold line 340 and below the second fold line 542.
  • the fourth portion 636 is positioned to the left of the first fold line 340 and below of the second fold line 542.
  • the top edge 302d is substantially parallel to the bottom edge 302b and the second fold line 542, and is substantially perpendicular to the left edge 302c, which is substantially parallel to the right edge 302a and the first fold line 340.
  • the first fold line 340 can extend substantially from the middle of the top edge 302d to the middle of the bottom edge 302b and the second fold line can extend substantially from the middle of the right edge 302a to the middle of the left edge 302c, so that the four portions 330, 332, 534, 636 have substantially the same dimensions.
  • the first portion 330 comprises the first winding 312, the second portion 332 comprises the second winding 314, the third portion 534 comprises the third winding 516 and the fourth portion 636 comprises the fourth winding 718.
  • the two ends 306, 308 are disposed at the level of the first portion 330 comprising the first winding 312.
  • the first winding 312 is connected to the end 308, for example by a link 354. In one example, the link 354 does not pass through a turn 320.
  • the first winding 312 is further connected to the second winding 314, for example by a link 350.
  • the link 350 passes through the first fold line 340.
  • the link 350 comprises for example a part extending substantially between the second fold line 542 and the top edge 302d, this part passing for example through the part of the first line fold 340 between the top edge 302d and the second fold line 542 substantially in its middle.
  • the second winding is further connected to the third winding 516, for example by a link 556.
  • the link 556 crosses the first fold line 340 and the second fold line 542, and can also cross one or more turns 320.
  • the link 556 extends for example from the end of a turn 320 inside the second winding 314 and close to the fold lines 340, 542 (at a minimum of about 500 micrometers), at the start of the outer turn 320 of the third winding 516 near the fold lines 340, 542.
  • the third winding 516 is connected to the fourth winding 718, for example by a link 758.
  • the link 758 crosses the first fold line 340, and can also pass through one or more turns 320.
  • the link 556 extends for example. from the end of a turn 320 inside the third winding 516 and near the fold lines 340, 542, to the start of the outer turn 320 of the fourth winding 718 near the fold lines 340, 542.
  • the fourth winding is further connected to the end 306, for example by a link 352 which crosses the first fold line 340 and the second fold line 542 and can pass through one or more turns 320.
  • the electronic chip 310 can be positioned on the first portion 312 comprising the ends 306, 308.
  • a plurality of sections of the first and second windings 312, 314 are arranged symmetrically with respect to the first fold line 340.
  • two turns 320, each of one of the two windings 312, 314 can be arranged symmetrically. relative to the first fold line 340.
  • a plurality of sections of the third and fourth windings 516, 718 are disposed symmetrically with respect to the first fold line 340.
  • two turns 320, each of one of the two windings 516, 718 may be disposed. symmetrically with respect to the first fold line 340.
  • first and third windings 312, 516 are arranged symmetrically with respect to the second fold line 542.
  • two turns 320, each of one of the two windings 312, 516 can be arranged in parallel. symmetrically with respect to the second fold line 542.
  • each of one of the two windings 314, 718 can be arranged in symmetrically with respect to the second fold line 542.
  • the four windings 312, 314, 516, 718 can comprise the same number of turns 320, each turn 320 of one of the windings 312, 314, 516, 718 having substantially the same dimensions and the same positioning on the portion 330, 332, 534, 636 comprising said winding 312, 314, 516, 718 as a turn 320 of the other windings 312, 314, 516, 718 on the other portions 330, 332, 534, 636.
  • the four windings 312, 314, 516, 718 are not arranged symmetrically with respect to the fold lines 340, 542 because, for example, these four windings 312, 314, 516, 718 do not have the same number of turns 320. In one example, only the outer turns 320 are symmetrical.
  • the antenna 304 is positioned on the substrate 302 so that, for the first fold line 340 separating the first portion 330 and the second portion 332, when a current is flowing through the antenna 304, the direction of current flow in the turns 320 of the windings 312, 314 is symmetrical with respect to the first fold line 340.
  • the direction of current flow in the turns 320 of the windings 312, 314 is symmetrical with respect to the first fold line 340.
  • the current flows counterclockwise in the winding 312, it flows in the opposite direction. clockwise in winding 314. This is in particular permitted by the arrangement of link 350.
  • the antenna 304 is positioned on the substrate 302 so that, for the first fold line 340 separating the third portion 534 and the fourth portion 718, when a current is flowing through the antenna 304, the direction of current flow in the turns 320 of the windings 516, 718 is symmetrical with respect to the first fold line 340.
  • the direction of current flow in the turns 320 of the windings 516, 718 is symmetrical with respect to the first fold line 340.
  • the current flows clockwise in the winding 516, it flows in the direction counterclockwise in winding 718. This is in particular permitted by the arrangement of link 758.
  • the antenna 304 is further positioned on the substrate 302 so that, for the second fold line 542 separating the first portion 330 and the third portion 534, when a current is flowing through the antenna 304, the direction of flow of the current in the turns 320 of the windings 312, 516 is symmetrical with respect to the fold line 542. In other words, in top view, when the current flows counterclockwise in the winding 312, it flows in the clockwise in winding 516.
  • the antenna 304 is further positioned on the substrate 302 so that, for the second fold line 542 separating the second portion 332 and the fourth portion 636, when a current flows through the antenna 304, the direction of flow of the current in the turns 320 of the windings 314, 718 is symmetrical with respect to the fold line 542. In other words, in top view, when the current flows clockwise in the winding 314, it flows in the counterclockwise in winding 718.
  • a method for manufacturing a wireless communication module comprising a plurality of superimposed layers is described, for example a method for manufacturing a module as described below.
  • Step 1000 a plate 300 is provided as described above.
  • Step 1000 can comprise steps 1001, 1003 and optionally 1002 and 1004 described below, so as to form a process for manufacturing the plate 300.
  • a substrate is provided, said substrate being delimited by edges.
  • the substrate is for example a substrate 302 according to one of the examples described. previously with reference to figures 3 to 7 .
  • a plate of substrates 1100 comprising several substrates 302 integral with one another is provided (see figure 11 ).
  • a fold line assembly including at least one fold line is formed in the substrate.
  • each fold line is formed by thinning the material of the substrate, or is formed by folding and unfolding the substrate.
  • the substrate is then divided into a plurality of portions delimited by the fold line assembly and the edges of the substrate.
  • an antenna is formed on the substrate, for example on the same face of the substrate.
  • the surface of the antenna is at least partially electrically insulated, and the antenna has two ends adapted to be connected to an electronic chip, and a plurality of windings, each comprising at least one turn.
  • the antenna is formed on the substrate so as to form a plate comprising a plurality of portions bounded by the fold line assembly and the edges of the substrate, at least two of the portions each comprising at least one winding, and the two ends being arranged at the same portion.
  • the antenna and the plate are for example respectively an antenna 304 a plate 300 according to one of the examples described above with reference to figures 3 to 7 .
  • the antenna is deposited on the substrate, for example by continuously depositing a wire on the substrate.
  • the antenna is then fixed to the substrate.
  • the fixing can be carried out by gluing, typically when the antenna is an enamelled metal wire.
  • the antenna is fixed by being incorporated into the substrate, for example by being embedded in the substrate by means of a technique using ultrasound.
  • the electronic chip can then be positioned on the portion comprising the two ends (step 1004).
  • the electronic chip is positioned on a portion of the substrate before step 1003 of forming the antenna, and the two ends are positioned on the portion comprising the electronic chip.
  • the electronic chip is for example an electronic chip 310 according to one of the examples described above with reference to figures 3 to 7 .
  • the formation of the antenna and the positioning of the electronic chip are carried out for each substrate 302 of the plate 1100 (see figure 11 ).
  • a portion not comprising a winding is cut.
  • the portion not comprising a winding is not cut.
  • an adhesive layer is positioned on one side of a portion to be folded over another portion after the folding step 1008 described below.
  • an adhesive layer is positioned on each side to be folded over a portion.
  • the adhesive layer 1102, 1104 can be deposited on a portion of each substrate in a single operation (cf. figure 11 ).
  • the substrate or the plate is folded along the at least one fold line so as to form at least two layers of the plurality of superimposed layers.
  • the plate is folded along a first fold line so as to form two layers, each layer corresponding to at least a portion of the substrate.
  • This first folding of the plate can cause at least a second folding line, present on the two layers, to be folded back on itself.
  • the plate has a second fold line, it is then folded along this second fold line, and so on, until all the portions are stacked on top of each other so as to form a plurality of overlapping layers. .
  • step 1010 the plurality of superimposed layers are laminated, for example directly, without an intermediate layer in order to obtain a fine modulus.
  • the plate is then irreversibly folded.
  • this step 1010 is not carried out. It is thus possible to bend the plate in a reversible manner, and thus to be able to modify the additional capacity obtained by bending the plate differently.
  • the additional capacity obtained is different if the second winding is found after folding between the first and third windings or if the third winding is found after folding between the first and second windings.
  • a wireless communication module 1200 for example made from a plate 300 as described with reference to figures 3 to 7 .
  • the module 1200 is for example obtained from the manufacturing process as described above.
  • the module 1200 comprises a substrate 302, for example a substrate 302 as described previously folded, an electronic chip 310, for example an electronic chip 310 as described previously, and an antenna 304, for example an antenna 304 as described previously.
  • the antenna 304 comprises two ends connected to the electronic chip 310, and a plurality of windings 312, 314, 516, 718, each comprising at least one turn 320, for example a plurality of turns 320.
  • Module 1200 includes a plurality of superimposed layers, with substrate 302 (or plate 300) being folded to form at least two layers 1202, 1204, 1406, 1408 of the plurality of layers. At least two of the layers 1202, 1204, 1406, 1408 formed by the folding of the substrate 302 each comprise at least one winding 312, 314, 516, 718 and the two ends are positioned at the same layer 1202, 1204, 1406 , 1408.
  • the layers 1202, 1204, 1406, 1408 formed by the substrate 302 thus correspond to the portions 330, 332, 534, 636 of the plate 300 once the substrate 302 is folded along the fold line assembly.
  • the two ends are positioned on the same face of the same layer 1202, 1204, 1406, 1408 of at least two layers 1202, 1204, 1406, 1408 formed by the folding of the substrate 302.
  • windings 312, 314, 516, 718 are arranged so that when a current flows through the antenna 304, the current flows in the same direction in each turn 320, for example clockwise or counterclockwise in top view of a face of a layer 1202, 1204, 1406, 1408 of the module 1200.
  • An insulating layer can be positioned between at least two of the layers 1202, 1204, 1406, 1408 formed by the folding of the substrate 302.
  • This layer is made of plastic, for example PVC. This layer makes it possible to adjust the additional capacity.
  • the module 1200 operates at a communication frequency of 13.56 MHz. This frequency is used in communication protocols defined in standards ISO 14443, ISO 15693, ISO 18000-3.
  • At least two sections of two turns 320 of the plurality of windings 312, 314, 516, 718 i.e. one turn of one of the windings 312, 314, 516, 718 and a turn 320 of another winding 312, 314, 516, 718 can be superimposed.
  • superimposed is meant that the sections are substantially aligned along a plane perpendicular to the substrate 302.
  • At least two turns 320 of the plurality of windings 312, 314, 516, 718 are superimposed.
  • the centers of the two turns 320 of the plurality of windings 312, 314, 516, 718 are superimposed.
  • the maximum offset between the projection of the first turn and the second turn is 300 micrometers.
  • At least two windings 312, 314, 516, 718 are superimposed.
  • the centers of the superimposed windings 312, 314, 516, 718 are superimposed.
  • the figure 12 shows a section of a 1200 module made by bending the plate 300 of the figure 3 .
  • the plate 300 of the figure 3 is folded (step 1008) along the fold line 340, so that the windings 312, 314 are separated by the two layers 1202, 1204.
  • the layer 1202 corresponds to the portion 330 and the layer 1204 corresponds to the portion 332.
  • plate 300 of the figure 3 is folded along the fold line 340, so that the windings 312, 314 are sandwiched between the two layers 1202, 1204 (see figure 13 ).
  • the figure 14 shows a section of a 1200 module made by bending the plate 300 of the figure 6 .
  • the plate 300 of the figure 6 is first folded along the first fold line 340, so that the windings 312, 314 are separated by the layers 1202, 1204.
  • the second fold line 542 is then folded back on itself.
  • the plate 300 is folded along the second fold line 542 so that the windings 312, 516 are sandwiched between the layers 1406, 1408 on the one hand and the layers 1202, 1204 on the other hand.
  • Layer 1202 corresponds to portion 330
  • layer 1204 corresponds to portion 332
  • layer 1406 corresponds to layer 636
  • layer 1408 corresponds to layer 534.
  • the plate is folded along the second fold line 542. so that the winding 516 is separated from the winding 314 by the layers 1406, 1408.
  • the plate 300 is folded along the fold line 340, so that the windings 312, 314 are sandwiched between the two layers 1202, 1204. Then, the plate 300 is folded along the second fold line 542 of so that the winding 516 is separated from the winding 314 by the layers 1204, 1406. Alternatively, the plate is folded along the second fold line 542 so that the winding 516 is separated from the winding 312 by the layers. layers 1202, 1408.
  • the figure 15 shows a section of a 1200 module made by bending the plate 300 of the figure 7 .
  • the plate of the figure 7 can be folded in the same way as the plate of the figure 6 when the latter is folded in order to manufacture the module of the figure 14 .

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  • Details Of Aerials (AREA)

Claims (15)

  1. Platte (300), die dazu ausgelegt ist, zur Herstellung eines drahtlosen Kommunikationsmoduls (1200) verwendet zu werden, wobei die Platte umfasst:
    - ein Substrat (302), das durch Kanten (302a, 302b, 302c, 302d) begrenzt ist,
    - eine Antenne (304), die eine Fläche aufweist, die zumindest teilweise elektrisch isoliert ist, wobei die Antenne umfasst:
    - zwei Enden (306, 308), die dazu ausgelegt sind, mit einem elektronischen Chip (310) verbunden zu werden, und
    - mehrere Wicklungen (312, 314, 516, 718), die jeweils mindestens eine Windung (320) beinhalten,
    wobei die Platte mehrere Teile (330, 332, 534, 636) umfasst, die durch eine Gesamtheit von Faltlinien, umfassend mindestens eine Faltlinie (340, 542), und die Kanten (302a, 302b, 302c, 302d) des Substrats (302) begrenzt sind, so dass:
    - mindestens zwei der Teile (330, 332, 534, 636) jeweils mindestens eine Wicklung (312, 314, 516, 718) umfassen, und
    - die beiden Enden (306, 308) auf Höhe desselben Teils (330, 332, 534, 636) angeordnet sind,
    dadurch gekennzeichnet, dass die Antenne (304) aus einem Endlosmaterialfaden gebildet ist.
  2. Platte nach Anspruch 1, wobei das Substrat (302) Abmessungen aufweist, die kleiner als ein oder gleich einem Viertel des Formats ID-1 sind.
  3. Platte nach Anspruch 1 oder 2, wobei die Wicklungen (312, 314, 516, 718) auf derselben Seite des Substrats (302) gebildet sind.
  4. Platte nach einem der Ansprüche 1 bis 3, wobei die Antenne (304) in das Substrat (302) eingefügt ist.
  5. Platte nach einem der Ansprüche 1 bis 4, wobei die beiden Enden (306, 308) im Inneren derselben Wicklung (312, 314, 516, 718) der mehreren Wicklungen positioniert sind.
  6. Platte nach einem der Ansprüche 1 bis 5, wobei für mindestens eine Faltlinie (340, 542) der Gesamtheit von Faltlinien zwei Windungen (320) der mehreren Wicklungen in Bezug auf die Faltlinie (340, 542) im Wesentlichen symmetrisch angeordnet sind.
  7. Platte nach einem der Ansprüche 1 bis 6, wobei mindestens ein Teil (330, 332, 534, 636) eine Wicklung (312, 314, 516, 718) umfasst, die eine Windung (320) aufweist, die der Kontur des Teils (330, 332, 534, 636) folgt.
  8. Platte nach einem der Ansprüche 1 bis 7, wobei der minimale Abstand zwischen zwei Windungen (320) derselben Wicklung (312, 314, 516, 718) 100 Mikrometern entspricht.
  9. Platte nach einem der Ansprüche 1 bis 8, umfassend mindestens drei Teile (330, 332, 534), die jeweils eine Wicklung (312, 314, 516) umfassen.
  10. Drahtloses Kommunikationsmodul (1200), umfassend:
    - ein Substrat (302),
    - einen elektronischen Chip (310),
    - eine Antenne (304), die eine Fläche aufweist, die zumindest teilweise elektrisch isoliert ist, wobei die Antenne umfasst:
    - zwei Enden (306, 308), die mit dem elektronischen Chip (310) verbunden sind, und
    - mehrere Wicklungen (312, 314, 516, 718), die jeweils mindestens eine Windung (320) beinhalten,
    wobei:
    - das Modul mehrere übereinandergelegte Schichten (1202, 1204, 1406, 1408) umfasst, wobei das Substrat (302) gefaltet ist, um mindestens zwei Schichten (1202, 1204, 1406, 1408) der mehreren Schichten zu bilden,
    - mindestens zwei der Schichten (1202, 1204, 1406, 1408), die durch die Faltung des Substrats (302) gebildet sind, jeweils mindestens eine Wicklung (312, 314, 516, 718) umfassen, und
    - die beiden Enden (306, 308) auf Höhe derselben Schicht (1202, 1204, 1406, 1408) positioniert sind,
    dadurch gekennzeichnet, dass die Antenne (304) aus einem Endlosmaterialfaden gebildet ist.
  11. Modul nach Anspruch 10, wobei die Wicklungen (312, 314, 516, 718) so angeordnet sind, dass, wenn ein Strom in der Antenne (304) fließt, der Strom in jeder Windung (320) in die gleiche Richtung fließt.
  12. Modul nach Anspruch 10 oder 11, wobei eine Isolierschicht zwischen mindestens zwei der Schichten (1202, 1204, 1406, 1408) positioniert ist, die durch die Faltung des Substrats (302) gebildet werden.
  13. Modul nach einem der Ansprüche 10 bis 12, das bei einer Kommunikationsfrequenz von 13,56 MHz arbeitet.
  14. Modul nach einem der Ansprüche 10 bis 13, wobei zwei Windungen (320) der mehreren Wicklungen übereinandergelegt sind.
  15. Verfahren zur Herstellung eines drahtlosen Kommunikationsmoduls (1200), umfassend mehrere übereinandergelegte Schichten (1202, 1204, 1406, 1408), wobei das Verfahren umfasst:
    - Bereitstellen (1000) einer Platte (300) nach einem der Ansprüche 1 bis 9,
    - Positionieren (1004) eines elektronischen Chips (304) an dem Teil (330, 332, 534, 636), der die beiden Enden (306, 308) beinhaltet, und
    - Falten (1008) der Platte (300) entlang mindestens einer Faltlinie (340, 542), so dass mindestens zwei Schichten (1202, 1204, 1406, 1408) der mehreren übereinandergelegten Schichten gebildet werden.
EP16825851.5A 2015-12-17 2016-12-15 Drahtloskommunikationsmodul, platte zur verwendung bei der herstellung des besagten moduls und verfahren zur herstellung des besagten moduls Active EP3391461B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1562609A FR3045955B1 (fr) 2015-12-17 2015-12-17 Module de communication sans fil, plaque adaptee pour etre utilisee pour la fabrication dudit module et procede de fabrication dudit module
PCT/FR2016/053452 WO2017103493A1 (fr) 2015-12-17 2016-12-15 Module de communication sans fil, plaque adaptee pour etre utilisee pour la fabrication dudit module et procede de fabrication dudit module.

Publications (2)

Publication Number Publication Date
EP3391461A1 EP3391461A1 (de) 2018-10-24
EP3391461B1 true EP3391461B1 (de) 2020-11-18

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EP (1) EP3391461B1 (de)
FR (1) FR3045955B1 (de)
WO (1) WO2017103493A1 (de)

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CN108832283A (zh) * 2018-06-15 2018-11-16 南京邮电大学 新型柔性双频环形胶囊天线

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060237544A1 (en) * 2005-04-25 2006-10-26 Lintec Corporation Antenna circuit, IC inlet, IC tag, and IC card, as well as manufacturing method of IC tag and manufacturing method of IC card
US20110169702A1 (en) * 2008-09-11 2011-07-14 Jan Wendisch Antenna Module for Producing a Transponder, and a Transponder

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060237544A1 (en) * 2005-04-25 2006-10-26 Lintec Corporation Antenna circuit, IC inlet, IC tag, and IC card, as well as manufacturing method of IC tag and manufacturing method of IC card
US20110169702A1 (en) * 2008-09-11 2011-07-14 Jan Wendisch Antenna Module for Producing a Transponder, and a Transponder

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FR3045955A1 (fr) 2017-06-23
EP3391461A1 (de) 2018-10-24
WO2017103493A1 (fr) 2017-06-22
FR3045955B1 (fr) 2018-11-16

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