EP3391461A1 - Module de communication sans fil, plaque adaptee pour etre utilisee pour la fabrication dudit module et procede de fabrication dudit module. - Google Patents
Module de communication sans fil, plaque adaptee pour etre utilisee pour la fabrication dudit module et procede de fabrication dudit module.Info
- Publication number
- EP3391461A1 EP3391461A1 EP16825851.5A EP16825851A EP3391461A1 EP 3391461 A1 EP3391461 A1 EP 3391461A1 EP 16825851 A EP16825851 A EP 16825851A EP 3391461 A1 EP3391461 A1 EP 3391461A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- antenna
- winding
- fold line
- substrate
- windings
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004891 communication Methods 0.000 title claims abstract description 56
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims description 10
- 238000004804 winding Methods 0.000 claims abstract description 277
- 239000000758 substrate Substances 0.000 claims abstract description 117
- 238000000151 deposition Methods 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims 1
- 239000010410 layer Substances 0.000 description 52
- 238000010586 diagram Methods 0.000 description 9
- 239000003990 capacitor Substances 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 239000012790 adhesive layer Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000004907 flux Effects 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004800 polyvinyl chloride Substances 0.000 description 3
- 229920000915 polyvinyl chloride Polymers 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000002955 isolation Methods 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 238000002604 ultrasonography Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- -1 Polyethylene terephthalate Polymers 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
Classifications
-
- 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
- Wireless communication module plate adapted to be used for the manufacture of said module and method of manufacturing said module.
- the present invention relates to wireless communication modules, for example RFID type ("Radio Frequency ID entity" in English terminology).
- the present invention further relates to plates adapted for use in the manufacture of such wireless communication modules and to a method of manufacturing such wireless communication modules.
- RFID technology is now widely used in payment, identification and secure access applications.
- FIG. 1 shows a wireless communication module 100 comprising a substrate 102 on which an electronic chip 104 (or integrated circuit) and an antenna 106 are mounted.
- the antenna 106 takes the form of a winding 108 comprising at least one coil 110 of square or rectangular general shape.
- the outer turn 110 that is, the turn 110 closest to the edge of the substrate 102, is of dimensions a and b.
- the electronic chip 104 is capable, by means of the antenna 106 to which it is connected, of communicating with a transceiver (more generally called a "reader"), that is to say able to receive requests. transmitted from this transceiver and respond to these requests.
- a transceiver more generally called a "reader”
- FIG. 2 represents an electrical diagram corresponding to the wireless communication module 100 of FIG. 1.
- This electrical diagram comprises an RLC circuit 200 corresponding to the antenna 106.
- This circuit RLC 200 comprises a resistor 202 connected in series with a coil 204 and a capacitor 206.
- the circuit diagram further 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 wristbands, watches and key holders. These portable devices may 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 small wireless communication modules that can be integrated into any type of portable device.
- reducing the size of wireless communication modules is a real challenge because communication between modules and readers is governed by standards, such as ISO 14443 for high frequency RFID modules. Antennas must thus 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, affect the values of resistance, inductance and capacitance of the antenna (cf. RLC circuit 200 shown in Figure 2), which define the value of the communication frequency of the wireless communication module.
- the present invention provides a plate adapted to be used for the manufacture of a wireless communication module, said plate comprising:
- an antenna having a surface at least partially electrically isolated comprising:
- the plate comprising a plurality of portions delimited by a fold line assembly comprising at least one folding line and the edges of the substrate, so that:
- the portions each comprise at least one winding, and the two ends are arranged at the same portion.
- 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 dimensions constraints 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.
- arranging 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 caused 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 winding is no longer limited, it is possible not to use the entire useful surface of the substrate for the formation of turns of the windings.
- the dimensions of the peripheral turn 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 to drill 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 easy to electrically connect both ends to the electronic chip.
- the plate is adapted to be used for the manufacture of a module as described below.
- the substrate has dimensions less than or equal to one quarter of the ID-1 format.
- the invention is indeed particularly interesting for small communication modules.
- the antenna has the same constitution 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 manufacture of the plate, and therefore of the wireless communication module.
- the antenna is incorporated in the substrate.
- the two ends are positioned within a single 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 flow of the current allows, when the plate is folded according to the set of folding line to manufacture a wireless communication module, that when a current flows in the antenna, the current flows in the same sense in each turn. Circulation of the current in the same direction in each turn of the antenna makes it possible to add the magnetic field flux passing through the different windings and thus 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 plate comprises at least three portions each comprising a winding.
- the invention also relates to a wireless communication module comprising:
- an antenna having a surface at least partially electrically isolated comprising:
- the module comprises a plurality of superimposed layers, the substrate being folded so as to form at least two layers of the plurality of layers,
- At least two of the layers formed by the folding of said substrate each comprise at least one winding
- the module is manufactured from the plate as described above.
- the substrate and the antenna of the module correspond respectively to the substrate and 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 invention also provides a method of manufacturing a wireless communication module comprising a plurality of superimposed layers, said method comprising:
- the method is a manufacturing method of the module described above.
- the method further comprises lamination of the plurality of superposed layers.
- the supply step comprises a step of forming an antenna comprising a continuous deposition of the wire on the substrate.
- FIG. 1 already described is a top view schematically showing an example of conventional wireless communication module
- FIG. 2 is an electrical diagram corresponding to the wireless communication module illustrated in FIG. 1;
- FIGS. 3 to 7 are top views schematically showing plates adapted for use in the manufacture of wireless communication modules according to exemplary embodiments of the invention.
- FIGS. 8A, 8B and 8C show schematically the arrangement of windings and plate connections according to exemplary embodiments of the invention
- FIG. 10 represents, in the form of a flowchart, the main steps of a method of manufacturing a wireless communication module according to an exemplary embodiment of the invention.
- Fig. 11 is a top view schematically showing a substrate plate adapted for use in the manufacture of wireless communication modules according to an exemplary embodiment of the invention
- FIGS. 12 to 15 are sectional views schematically showing wireless communication modules according to exemplary embodiments of the invention
- FIG. 16 is an electrical diagram corresponding to the wireless communication modules illustrated in FIGS. 12 to 15.
- the present invention relates to wireless communication modules, for example RFID type ("Radio Frequency ID entity" in English terminology).
- the present invention further relates to plates adapted 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 may 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 folding line assembly comprising at least one folding 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 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 to fabricate a wireless communication module, create additional capacity.
- Each turn 320 of a winding 312, 314, 516, 718 vis-à-vis 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 caused by the small dimensions of the antenna.
- a capacitance is formed between two wires extending parallel and traversed by a current.
- Stacking the layers formed by the portions 330, 332, 534, 636, comprising windings 312, 314, 516, 718 formed from conducting wire makes it possible to achieve additional capacity through the thickness of the substrate 302. The distance, the diameter of the wire and the material separating the wires influence the value of the additional capacity.
- the additional capacity created during the folding of the plate may be twenty picofarads.
- FIG. 16 represents an electrical diagram corresponding to a module manufactured from the folding of a plate 300.
- This electrical diagram comprises an RLC circuit 1600 corresponding to the antenna 304.
- This circuit RLC 1600 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 circuit diagram furthermore comprises an RC circuit 1610 corresponding to the electronic chip 310.
- This circuit RC 1610 connected in parallel across the additional capacitor 1607, has a resistor 1612 connected in parallel with a capacitor 1614.
- the arrangement of the antenna 304 and in particular the ends 306, 308 of the antenna 304 simplifies the manufacture of the plate 300, and therefore 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 to drill 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.
- 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 may be plastic, for example PVC (polyvinyl chloride), or PET (Polyethylene terephthalate).
- the dimensions of the substrate 302 are less than or equal to one quarter of the ID-1 format (85.6 millimeters by 53.98 millimeters) defined by the ISO 7810 standard.
- Each fold line 340, 542 may be formed by thinning the material of the substrate 302, or by folding and unfolding the substrate 302.
- each winding 312, 314, 516, 718 and the ends 306, 308 of the antenna 304 are electrically connected in series with each other. More specifically, 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 an end 306, 308.
- the link 350, 352, 354, 556, 758 is for example a common section with two windings 312, 314, 516, 718.
- the link 350, 352, 354, 556, 758 connecting two windings 312, 314, 516, 718 passes through a fold line 340, 510.
- the antenna 304 has over its entire length the same constitution, that is to say the same composition of materials.
- the antenna 304 is formed by a conductive element, for example a 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 wire, and the ends 306, 308 of the antenna 304 are the two ends of the wire.
- the antenna 304 is formed by a plurality of conductive elements, for example a plurality of metal wires such as the wire described above.
- Each winding 312, 314, 516, 718 can then be formed by a different 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 the links 350, 352, 354, 556, 758.
- the antenna 304 is then formed of a continuous wire of material or a set of conductive elements physically connected to each other and which succeed one another so that the entire antenna 304 is mounted on the substrate 302, for example on the same face of the substrate 302.
- the outer surface of the antenna 304 is for example at least partially electrically isolated, for example electrically isolated.
- the wire may for this purpose comprise a sheath of insulating material over part or all of its length, or be an enamelled wire, for example by a plastic layer (eg polyurethane).
- the electrical isolation of the surface of the antenna 304 facilitates the positioning of the antenna 304.
- the links 350, 352, 354, 556, 758 can pass through coils 320 winding 312, 314, 516, 718 without creating short circuits, since there is no electrical contact at the point of intersection of the turn 320 and the link 350, 352, 354, 556, 758.
- great freedom is offered with regard to the design of the antenna 304, which makes it easy to position the two ends 306, 308 on the same portion 330, 332, 534, 636 of plate 300 , for example within the same winding 312, 314, 516, 718.
- the antenna 304 is positioned on the substrate 302. More specifically, the two ends 306, 308 can be disposed 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 the communication module for which the plate 300 is used is facilitated.
- the windings 312, 314, 516, 718 are not all positioned on one and the same face of the substrate 302.
- the wire is fixed on one side of the substrate 302, for example by bonding points.
- the attachment of the antenna 304 is then improved during a lamination which will be described later.
- the antenna 304 is partially embedded in the substrate
- the antenna 304 is partially embedded in the substrate 302, at the same face of the substrate 302.
- the wire may be embedded in the substrate 302 using a technique using ultrasound.
- the thread 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 comprise a winding 312, 314, 516, 718 having a turn 320 along 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 comprises an outer coil 320 (or peripheral) 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 that 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 of the fold line 340, 542 defining the portion 330, 332, 534, 636 comprising the turn 320.
- manufacturing tolerances imply that the outer coil 320 is positioned about 500 micrometers beyond the contour of the portion 330, 332, 534, 636.
- the dimensions of the external 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. In one example, the minimum distance between two turns 320 of the same winding 312, 314 is 100 micrometers. Thus, the dimensions of the module made from the plate 300 are reduced, and the module can be incorporated into portable devices of small dimensions.
- two sections of two turns 320 or two turns 320 of the plurality of windings 312, 314, 516, 718 may be arranged symmetrically with respect to each other.
- 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
- the windings 312, 314, 516, 718 may be arranged symmetrically with respect to this fold line 340, 542 .
- FIGs. 8A, 8B and 8C are diagrams showing how the windings
- FIGS. 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 completeness of the 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 represented solely for reasons of readability.
- the symmetry of the current flow direction allows, when the plate 300 is bent along the fold line assembly to fabricate a wireless communication module, that when a current flows in the antenna 304, the current flows through the antenna. the same direction in each turn 320.
- the flow of the current in the same direction in each turn 320 of the antenna 304 makes it possible to add the fluxes of magnetic field passing through the different windings 312, 314, 516, 718 and therefore increase the induced current in the antenna 304.
- FIGS. 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 flow of current 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 (see 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 comprise the electronic chip 310, or not understand 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 the same winding 312.
- By “positioned inside of the same winding” means that, in top view, the winding 312 surrounds the electronic chip 310 and the ends 306, 308.
- the configuration of the plate 300 makes it possible to choose a number of windings 312, 314, 516, 718 and coil 320 by winding 312, 314, 516, 718 making it possible to manufacture a wireless communication module operating at a predetermined frequency, that is, to generate a current sufficient to activate the electronic chip 310 at said frequency, with a minimum activation field (for an antenna shape factor defined by the dimensions of the outer turn) .
- the configuration of the plate 300 in a plurality of portions 330, 332, 534, 636 can be folded on each other reduces the number of turns 320 per portion 330, 332, 534, 636.
- a number of turns 320 decreased for a winding number 312, 314, 516, 718 increased.
- This reduction in the number of turns 320 causes a reduction in the resistance of the module created from the plate 300, and thus makes it possible to limit the energy loss during the current flow in the turns 320.
- the threshold field, c that is, the field from which the electronic chip 310 is activated (measured in A / m) is then improved, as is the range of the threshold field.
- the reduction in the number of turns 320 by 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 because it depends on the surface it passes through.
- Table 1 below shows antenna designs for obtaining a frequency of OFF (ie a frequency from which the electronic chip is no longer activated) of approximately 14.2 Megahertz and a field threshold of about 3 A / m.
- "Antenna 1" corresponds to a conventional antenna having a coil having an outer turn of 25 millimeters by 15 millimeters.
- the "antenna 2" corresponds to an antenna of a module according to an example of a world of embodiment of the invention comprising two windings each having an outer turn of 25 millimeters by 15 millimeters.
- the "antenna 3" corresponds to an antenna of a module according to an example of a world of embodiment of the invention comprising three windings each having an outer turn of 25 millimeters by 15 millimeters.
- This table 1 shows that the reading distance increases and that the threshold field decreases when antennas having several windings and having external turns of the same size as the outer coil of the antenna comprising a single winding are used.
- Figure 3 depicts plate 300 according to an exemplary embodiment of the invention.
- the antenna 304 includes a first winding 312 and a second winding 314.
- Each winding 312, 314 comprises two turns 320.
- each winding 312, 314 may comprise a winding number of turns greater than or equal to one and different from two, for example three or four, this number being different depending on the winding 312, 314.
- the opposite faces of the substrate 302 are square or rectangular.
- 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 extends for example substantially parallel to the right edge 302a, a first portion of the top edge 302d connecting the right edge 302a and the fold line 340, and a first part of the lower 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 portion of the edge top 302d connecting the left edge 302c and the fold line 340, and a second portion of the bottom edge 302b connecting the left edge 302c and the fold line 340.
- the portions 330 and 332 may have substantially the same dimensions.
- top, bottom, right, left we mean four different orientations with respect to the plate seen from above.
- up and down means two opposite directions of the same vertical direction.
- right and left means two opposite directions of the same direction called horizontal, 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 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 the middle and one or more turns 320, for example extending in a direction substantially parallel to the high edge 302d or the low edge 302b.
- the winding 312 is for example connected to the end 308 by a link 354, which may not pass through a coil 320.
- the two windings 312, 314 are interconnected by a link 350.
- the link 350 passes through the fold line 340.
- the link 350 comprises, for example a portion extending substantially between the bottom edge 302b and the top edge 302d, this portion passing for example the fold line 340 substantially in its middle.
- the electronic chip 310 can be positioned on the portion 312 having 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
- only the outer turns 320 may 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 that 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 The windings 312, 314 are symmetrical with respect to the fold line 340. In other words, when viewed from above, when the current flows counterclockwise in the winding 312, it flows clockwise in the winding. 314. This is in particular permitted by the provision of route 350.
- the configuration of the plate 300 in two portions 330, 332 each comprising a winding 312, 314 and being foldable on one another makes it possible to position two times fewer turns 320 on each portion 330, 332 than on a conventional plate. having a single portion having the same dimensions as a portion 330, 332 of the plate 300.
- the dimensions a and b of the outer turn 110 of the module 100 of 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 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 is then larger than the effective area of the antenna of the module 100, which allows to reduce the threshold field and improve the performance of the antenna.
- the configuration of the plate in two portions 330, 332 each having a winding 312, 314 and can be folded one on the other also reduces the dimensions of the antenna 304 while maintaining the same performance of the antenna 304
- FIG. 4 shows, for example, a plate 300 differing from the plate 300 of FIG.
- each winding 312, 314 comprises four turns and in that the length a 'of the section of the outer turn following the right edge 302a is equal to the length a of the section of the outer turn of Figure 3 following the right edge 302a divided by two.
- Figure 5 depicts the plate 300 according to another exemplary embodiment of the invention.
- the antenna 304 includes a first winding 312, a second winding 314, and a third winding 516.
- the opposite faces of the substrate 302 are square or rectangular.
- 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 folding 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 portion 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 right 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 portion of the top edge 302d connecting the first fold line 340 to the second fold line 542, and a second portion 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 portion of the top edge 302d connecting the second fold line 542 to the left edge 302c, and a third portion of the bottom edge 302b connecting the second fold line 542 at the left edge 302c.
- the first portion 330 comprises the first winding 312, the second portion 332 includes the second winding 314, and the third portion 534 comprises the third winding 516.
- the two ends 306, 308 are arranged at 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 cross turn 320.
- the first winding is further connected to the second winding 314, for example by a link 350.
- the link 350 passes through the fold line 340.
- the link 350 comprises for example a portion extending substantially between the low edge 302b and the high edge 302d, this part passing for example the fold line 340 substantially in its middle.
- the second winding is further connected to the third winding 516, for example via a link 556.
- the link 556 crosses the fold line 542.
- the link 556 extends for example substantially between the low edge 302b and the high edge 302d, this cross section 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 traverses in one example the fold lines 340, 542 substantially in their environments, and can extend in a direction substantially parallel to the high edge 302d or the low edge 302b.
- the electronic chip 310 can be positioned on the portion 312 having 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 symmetrically arranged by relative to the fold line 340.
- a plurality of sections of the second and third windings 314, 516 are arranged symmetrically with respect to the fold line 542.
- two turns 320, each of one of the two windings 314, 516 may be arranged symmetrically with respect to the fold line 542.
- the three windings 312, 314, 516 may 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 a coil 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, for example, these two windings 312, 314 do not have the same number of turns 320.
- both 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.
- 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 The windings 312, 314 are symmetrical with respect to the fold line 340. In other words, when viewed from above, when the current flows counterclockwise in the winding 312, it flows clockwise in the winding. 314. This is in particular permitted by the provision of route 350.
- the antenna 304 is furthermore 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, in top view, when the current flows clockwise in the winding 314, it circulates counterclockwise in the 516. This is in particular allowed by the provision of the link 556.
- Figure 6 depicts the plate 300 according to another exemplary embodiment of the invention.
- the antenna 304 includes a first winding 312, a second winding 314, and a third winding 516.
- the opposite faces of the substrate 302 are square or rectangular.
- 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 folding 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 through 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
- 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 includes the second winding 314, and the third portion 534 comprises the third winding 516.
- the two ends 306, 308 are arranged at 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 cross 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 portion extending substantially between the second fold line 542 and the top edge 302d, this portion passing through, for example, the portion of the first line Folding 340 between the top edge 302d and the second fold line 542 substantially in the middle.
- the second winding 314 is further connected to the third winding 516, for example via a link 556.
- the link 556 passes through the first fold line 340 and the second fold line 542, and may also traverse 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 about 500 micrometers), at the beginning of the outer turn 320 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 passes through 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 near 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 having 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 symmetrically disposed with respect to the second fold line 542.
- two turns 320, each of one of the two windings 312, 516 may be arranged symmetrically with respect to the second fold line 542.
- the three windings 312, 314, 516 may 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 a coil 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 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 flows in the antenna 304, the flow direction of the current in the turns 320 of the windings 312, 314 are symmetrical with respect to the first fold line 340. In other words, in top view, when the current flows counterclockwise in the winding 312, it flows in the direction This is in particular allowed by the arrangement of the link 350.
- the antenna 304 is furthermore 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 flows in 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 allowed by the arrangement of the link 556.
- the portion 636 having no winding can be cut to limit the thickness of the module after folding, or kept insofar as it has a small thickness and contributes to the adjustment of parameters, including the capacity, the antenna .
- Figure 7 depicts the plate 300 according to another exemplary embodiment of the invention.
- the antenna 304 includes a first winding 312, a second winding 314, a third winding 516 and a fourth winding 718.
- the opposite faces of the substrate 302 are square or rectangular.
- 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 Folding 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 through 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
- 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, 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 arranged at the 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 cross 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 portion extending substantially between the second fold line 542 and the top edge 302d, this portion passing through, for example, the portion of the first line Folding 340 between the top edge 302d and the second fold line 542 substantially in the middle.
- the second winding is further connected to the third winding 516, for example via a link 556.
- the link 556 passes through the first fold line 340 and the second fold line 542, and may also traverse 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 least about 500 micrometers), at the beginning 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 passes through 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, at the beginning 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 passes through 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 having 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 arranged symmetrically with respect to the first fold line 340.
- two turns 320, each of one of the two windings 516, 718 can be arranged. 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 may be arranged. symmetrically with respect to the second fold line 542.
- a plurality of sections of the second and fourth windings 314, 718 are arranged symmetrically with respect to the second fold line 542.
- two turns 320, each of one of the two windings 314, 718 may be arranged. symmetrically with respect to the second fold line 542.
- the four windings 312, 314, 516, 718 may 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 a coil 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 flows in the antenna 304, the flow direction of the current in the turns 320 of the windings 312, 314 are symmetrical with respect to the first fold line 340. In other words, in top view, when the current flows counterclockwise in the winding 312, it flows in the direction This is in particular allowed by the arrangement of the 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 flows in the antenna 304, the flow direction of the current in the turns 320 of the windings 516, 718 are symmetrical with respect to the first fold line 340.
- the current flows clockwise in the winding 516, it flows in the direction counterclockwise in the winding 718. This is in particular allowed by the arrangement of the link 758.
- the antenna 304 is furthermore 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 flows in 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.
- the antenna 304 is furthermore 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 in 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 the winding 718.
- Step 1000 a plate 300 is provided as described above.
- Step 1000 may comprise steps 1001, 1003 and optionally 1002 and 1004 described below, so as to form a method of manufacturing plate 300.
- step 1001 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 3 to 7.
- a substrate plate 1100 having a plurality of integral substrates 302 is provided (see FIG. 11).
- a fold line assembly comprising at least one fold line is formed in the substrate.
- each fold line is formed by thinning the substrate material, 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 isolated, and the antenna has two ends adapted to be connected to an electronic chip, and a plurality of windings, each having at least one turn.
- the antenna is formed on the substrate so as to form a plate comprising a plurality of portions delimited by the fold line assembly and the edges of the substrate, at least two of the portions each comprising at least one winding, and both ends being disposed 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 previously with reference to FIGS. 3 to 7.
- the antenna is deposited on the substrate, for example by continuously depositing a wire on the substrate.
- the antenna is then attached to the substrate. Fixing can be done by gluing, typically when the antenna is an enamelled wire. In another example (typically when the antenna is a sheathed wire), the antenna is fixed by being embedded in the substrate, for example by being embedded in the substrate using a technique using ultrasound.
- the electronic chip can then be positioned on the portion having both 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 previously with reference to FIGS. 3 to 7.
- the formation of the antenna and the positioning of the electronic chip are performed for each substrate 302 of the plate 1100 (see FIG. 11).
- a portion with no winding is cut. Alternatively, the portion having no 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. Alternatively, an adhesive layer is positioned on each face to be folded over a portion.
- the adhesive layer 1102, 1104 may be deposited on a portion of each substrate in a single operation (see Figure 11).
- the substrate or 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 fold line present on the two layers to be folded 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 superimposed layers. .
- the plurality of superposed layers is laminated, for example directly, without an intermediate layer to obtain a thin module.
- the plate is then irreversibly folded.
- this step 1010 is not performed. It is thus possible to fold the plate reversibly, and thus to be able to modify the additional capacity obtained by folding 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.
- 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 above, and an antenna 304, for example an antenna 304 as described above.
- the antenna 304 comprises two ends connected to the electronic chip 310, and a plurality of windings 312, 314, 516, 718, each having at least one turn 320, for example a plurality of turns 320.
- the module 1200 comprises a plurality of superposed layers, the substrate 302 (or the plate 300) being folded so as 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 has been folded according to the fold line assembly.
- Both ends are positioned on the same face of the same layer 1202, 1204, 1406, 1408 of the 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 in the antenna 304, the current flows in the same direction in each turn 320, for example the clockwise or the counterclockwise direction.
- An insulating layer may be positioned between at least two of the layers 1202,
- This layer is plastic, for example PVC. This layer adjusts the additional capacity.
- the module 1200 operates at a communication frequency of 13.56 MHz. This frequency is used in communication protocols defined in ISO 14443, ISO 15693, ISO 18000-3.
- At least two sections of two turns 320 of the plurality of windings 312, 314, 516, 718 that is to say a turn of one of the windings 312, 314, 516, 718 and a turn 320 of another winding 312, 314, 516, 718 may 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 for example all the windings 312, 314, 516, 718, are superimposed.
- the centers of the superimposed windings 312, 314, 516, 718 are superimposed.
- FIG. 12 shows a section of a module 1200 manufactured by folding the plate 300 of FIG. 3.
- the plate 300 of FIG. 3 is folded (step 1008) along the line of FIG. folding 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.
- the plate 300 of 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).
- FIG. 14 shows a section of a module 1200 manufactured by folding the plate 300 of FIG. 6.
- the plate 300 of FIG. 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 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.
- the layer 1202 corresponds to the portion 330
- the layer 1204 corresponds to the portion 332
- the layer 1406 corresponds to the layer 636
- the layer 1408 corresponds to the 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 1202, 1408.
- FIG. 15 shows a section of a module 1200 made by folding the plate
- the plate of FIG. 7 can be folded in the same manner as the plate of FIG. 6 when the latter is folded in order to manufacture the module of FIG. 14.
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Abstract
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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 |
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EP3391461A1 true EP3391461A1 (fr) | 2018-10-24 |
EP3391461B1 EP3391461B1 (fr) | 2020-11-18 |
Family
ID=55589986
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP16825851.5A Active EP3391461B1 (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. |
Country Status (3)
Country | Link |
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EP (1) | EP3391461B1 (fr) |
FR (1) | FR3045955B1 (fr) |
WO (1) | WO2017103493A1 (fr) |
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Publication number | Priority date | Publication date | Assignee | Title |
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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 |
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JP2006304184A (ja) * | 2005-04-25 | 2006-11-02 | Lintec Corp | アンテナ回路、icインレット、icタグ及びicカードならびにicタグの製造方法及びicカードの製造方法 |
DE102008047013A1 (de) * | 2008-09-11 | 2010-03-25 | Smartrac Ip B.V. | Antennenmodul zur Herstellung eines Transponders sowie Transponder |
-
2015
- 2015-12-17 FR FR1562609A patent/FR3045955B1/fr not_active Expired - Fee Related
-
2016
- 2016-12-15 EP EP16825851.5A patent/EP3391461B1/fr active Active
- 2016-12-15 WO PCT/FR2016/053452 patent/WO2017103493A1/fr active Application Filing
Also Published As
Publication number | Publication date |
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FR3045955B1 (fr) | 2018-11-16 |
EP3391461B1 (fr) | 2020-11-18 |
FR3045955A1 (fr) | 2017-06-23 |
WO2017103493A1 (fr) | 2017-06-22 |
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