EP0956537A1 - Module de transmission pour dispositif transpondeur, et dispositif transpondeur et procede permettant de faire fonctionner un dispositif transpondeur - Google Patents

Module de transmission pour dispositif transpondeur, et dispositif transpondeur et procede permettant de faire fonctionner un dispositif transpondeur

Info

Publication number
EP0956537A1
EP0956537A1 EP98909286A EP98909286A EP0956537A1 EP 0956537 A1 EP0956537 A1 EP 0956537A1 EP 98909286 A EP98909286 A EP 98909286A EP 98909286 A EP98909286 A EP 98909286A EP 0956537 A1 EP0956537 A1 EP 0956537A1
Authority
EP
European Patent Office
Prior art keywords
coil
transponder
coupling
chip
transmission module
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.)
Ceased
Application number
EP98909286A
Other languages
German (de)
English (en)
Inventor
Manfred Rietzler
Robert Wilm
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Amatech Advanced Micromechanic & Automation Technology & Co Kg GmbH
PAV Card GmbH
Original Assignee
Amatech Advanced Micromechanic & Automation Technology & Co Kg GmbH
PAV Card GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Amatech Advanced Micromechanic & Automation Technology & Co Kg GmbH, PAV Card GmbH filed Critical Amatech Advanced Micromechanic & Automation Technology & Co Kg GmbH
Publication of EP0956537A1 publication Critical patent/EP0956537A1/fr
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
    • G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
    • G06K19/0775—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card arrangements for connecting the integrated circuit to the antenna
    • G06K19/07756—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card arrangements for connecting the integrated circuit to the antenna the connection being non-galvanic, e.g. capacitive
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/0723—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs

Definitions

  • the present invention relates to a transmission module for contactless data transmission between a chip and a reading device according to claims 1 or 2 and a transponder device with a transponder unit and a transmission module according to claims 1 1, 12 or 13 and a method for operating a transponder device with a Transponder unit and a transmission module according to claims 16 or 17
  • Transponder units which in their simplest form consist of a chip and a transponder coil contacted with the connection surfaces of the chip, are being used to an increasing extent in completely different fields, but they serve the same purpose, a contact or wireless communication between one more or less far away from the transponder unit and the chip to ensure that data can be tapped to recognize data stored on the chip.
  • Such transponder units are used, for example, in so-called contactless chip cards, in coded labels or for slaughter animals. tion, used here as a so-called injection transponder
  • transponder units Due to the different areas of application of transponder units, there are sometimes extremely different transmission distances between the respective transponder unit and the associated reading device, which accordingly require different operating voltages for the transponder units or the chips comprised by them.
  • the layout has so far been necessary in each individual case to match the transponder unit to the reading device, which as a rule makes an impedance matching between the transponder unit and the reading device necessary. From the foregoing, it becomes clear that a large number of differently designed transponder units are necessary simply because of the two design parameters operating voltage and impedance, in order to ensure reliable Operation of the respective transponder unit as a function of the transmission distance and the type of the associated reading device must be ensured. These requirements are there against a fundamentally desired standardization in the design of transponder units, which would enable a significantly more cost-effective production of transponder units
  • the object of the present invention is therefore to enable the formation of a standardized transponder unit, regardless of the transmission distance available in the individual case or the respective type of reading device
  • a transmission module for contactless data transmission between a chip and a reading device which has a coil arrangement with a coupling element and at least one antenna coil which are electrically connected to one another, the coupling element for producing an inductive coupling with a transponder coil electrically connected to the chip and the Antenna coil for establishing a contactless connection with the
  • the reading device serves as a coupling coil
  • the coupling element and the antenna coil are designed differently with regard to at least one of their coil parameters influencing the coil impedance
  • a transmission module designed in this way which can be combined with the transponder unit by means of inductive coupling, thus enables impedance matching between the reading device and the transponder unit.
  • the coupling element is designed as a coupling coil
  • len parameters are available, for example, the wire cross section of the coil, the length of the coil wire assigned to the respective coil, or the material used to produce the coil wire
  • a further possibility of adapting a transponder unit to the particular circumstances of the individual case with regard to different transmission distances is to provide a transmission module for contactless data transmission between a chip and a reading device, which has a coil arrangement with a coupling element and at least one antenna coil, the Coupling element for producing an inductive coupling with a transponder coil electrically connected to the chip and the antenna coil for producing a non-contact Connection to the reading device is used, wherein the contact element designed as a coupling coil is designed such that the coupling coil is formed as a primary coil with the associated transponder coil
  • the inductive coupling between the coupling coil and the transponder coil is therefore used to form a transformer from the coupling coil and the transponder coil, with which the operating voltage in the transponder unit can be increased.
  • a strengthening device of this type can be formed from a voltage source which increases or generates the voltage applied to the coupling coil, that is to say, for example, by a battery arranged in the transmission module and contacted with the coupling coil. This enables an active transmission module to be formed which is via has its own power supply
  • Another way to achieve a reinforcing effect is to provide the coupling coil with a core made of a permeable material, in particular ferrite, which has the magnetic field strength the coupling coil increases
  • the above-described amplification device thus also forms a solution that is independent of the solution, the coupling coil and the transponder coil to be used to form a transformer
  • the antenna coil also serves as a coupling coil
  • the coil arrangement is arranged on a carrier film.
  • carrier film is not restrictive here with regard to a material selection that is suitable for the carrier film understand, that is, contrary to a widespread understanding of the meaning of the term “carrier film” fall under this term, as it is used here, not only plastic materials, but also natural materials, such as cell fibers or paper with the term “carrier film” here can only be expressed that a substrate designed as a carrier film is essentially determined by its surface dimension and has a thickness that is rather negligible compared to the surface extension
  • the coil arrangement is to be used for coded labels or the like, it proves to be advantageous if the coil arrangement is formed on an adhesive substrate
  • the transponder device is provided according to claim 1 1 with a transponder unit and a transmission module, wherein the transponder unit has a chip with a transponder coil electrically connected to the chip and the transmission module has a coupling element with an antenna coil, the coupling element being used for inductive coupling to the transponder coil, and the antenna coil being electrically connected to the coupling element and for establishing a contactless connection serves with a reading device, in order to enable an adaptation between the transponder unit and the reading device, the coupling element designed as a coupling coil and the antenna coil are designed differently with respect to at least one of their coil parameters influencing the coil impedance.
  • a transponder device with a transponder unit and a transmission module having a chip with a transponder coil electrically connected to the chip and the transmission module having a coupling element with an antenna coil, the coupling element for producing an inductive coupling with serves the transponder coil, and the antenna coil is electrically connected to the coupling element and is used to establish a contactless connection with a reading device, the coupling element being designed as a coupling coil and having a comparatively smaller number of turns than the transponder coil, such that the coupling coil is a primary coil and the Transponder coil forms a secondary coil of a transformer
  • a further transponder device is provided with a transponder unit and a transmission module, the transponder unit being a chip with an electrically connected to the
  • Chip-connected transponder coil and the transmission module has a coupling element with an antenna coil, the coupling element being used to establish an inductive coupling with the transponder coil, and the antenna coil being electrically connected to the coupling element and serving to establish a contactless connection to a reading device, the coupling element being made of a permeable material rod, in particular a ferrite core, is formed, the end face of which serves as a coupling surface, and the antenna coil is arranged around the material rod
  • the chip is arranged with its rear side on the end face of the permeable material rod, and the chip coil arranged on the contact side of the chip opposite the rear side is essentially congruent with the end face of the material rod with its coil surface
  • the transmission module is used to adapt the impedance of the antenna coil to a reading device communicating with the transponder unit changed an impedance of the coupling coil adapted to the impedance of the transponder unit
  • Another method according to the invention for operating a transponder device with a transponder unit having a chip and a transponder coil and a transmission module having a coupling coil and an antenna coil electrically connected to the coupling coil consists in the coupling coil of the transmission module together with the transponder coil as the operating voltage in the transponder unit, increasing the transformer to use
  • FIG. 1 shows a schematic illustration of a data transmission arrangement with a transponder device and a reading device
  • FIG. 2 shows a detailed illustration of the transponder device shown schematically in FIG. 1, 3 shows a sectional illustration of a chip card constructed using layer technology and provided with a transponder device,
  • FIG. 4 is a top view of the transponder device arranged in the chip card shown in FIG. 3,
  • Fig. 5 shows another embodiment of a transponder device
  • the transponder device 11 comprises a transponder unit 13 and a transmission module 14.
  • the transponder unit 13 has a chip 15 and one on connection surfaces 16, 17 of the chip 15 electrically connected transponder coil 18
  • the transmission module 14 consists of a coupling element, which is designed here as a coupling coil 19, and an antenna coil 20 which is electrically connected to the coupling coil
  • the transmission module 14 basically serves to receive the electromagnetic transmission power emitted by a transmission coil 21 of the reading device 12 via the antenna coil 20 and to transmit it inductively by means of the coupling coil 19 to the transponder coil 18 of the transponder unit 13.
  • the coupling coil 19 essentially has the task to focus the electromagnetic field on the transponder coil 18 in order to achieve the most effective inductive coupling between the coupling coil 19 and the transponder coil 18
  • transmission module 14 Another function of the transmission module 14 is to increase the operating voltage of the chip 15 by means of a suitable interaction with the transponder coil 18, in order to enable an increased transmission distance ⁇ between the transponder device 11 and the reading device 12
  • transmission module 14 enables an adaptation of the
  • FIG. 2 shows, for a more detailed explanation of the above-described modes of operation of the transmission module 14, a detailed illustration of the transponder device 11 with the transponder unit 13 comprising the chip 15 and the transponder coil ⁇ and the transmission module 14 with the coupling coil 19 and the antenna coil 20
  • the coupling coil 19 and the antenna coil 20 are connected via electrical conductors 22, 23 on account of the different winding lengths of the coils in connection with the number of turns otherwise matching, the
  • the coupling coil 19 has a lower impedance than the antenna coil 20.
  • the embodiment of the transmission module 14 shown in FIG. 2 can accordingly be designed, for example, so that the coupling coil 19 is connected to the relative low impedance of the transponder unit 13 is adapted and the antenna coil 20 is adapted to the relatively high impedance of a reading device not shown here, so that it is possible by means of the transmission module 14 to connect a high-resistance reading device to a low-resistance transponder unit without the transponder unit being used for this purpose itself, that is, the transponder coil 18, had to be adapted directly in terms of impedance
  • transponder coil 18 as a primary coil or a secondary coil
  • Transformers 25 act, with the result that a comparatively increased voltage is induced in the transponder coil 18, as a result of which a correspondingly increased operating voltage is available for the chip 15
  • FIG 3 shows a transmission module 26 in one embodiment as a card inlay in a chip card 27 formed using layer technology
  • the other layers are made up of a chip inlay 28 with a chip 29 accommodated therein, a transponder coil inlay 30 with an embedded transponder coil 3 1, which is in contact with the chip 29, and two outer layers each arranged on the chip inlay 28 or the transmission module 26 Cover layers 32 and 33 formed
  • the chip inlay 28 and the transponder coil inlay 30 form a transponder device 49 in the present case
  • FIG. 4 shows a top view of the transmission module 26 with a coupling coil 34 and an antenna coil 35, which are connected to one another via conductors 36, 37 and are arranged on a common carrier layer 38, here designed as a thin-layer substrate, which in the present case consists of a Polyimide film can exist
  • Antenna coil 35 can be designed as wire coils and also as coils realized in some other way
  • FIG. 5 shows a transponder device 39 with a transponder unit 40, which is formed from a chip 41 and a transponder coil 43 arranged directly on the contact surface 42 provided with connection surfaces.
  • a transponder coil 43 arranged directly on the contact surface 42 provided with connection surfaces.
  • coil arrangements are also referred to in technical terms with the term “coil on chip” and can 1 g oe v can be produced in an etching or shearing process
  • the transponder device 39 has a transmission module 44 which consists of a short-circuited antenna arranged around a ferrite core 45.
  • the nominal coil 46 is different from the transmission modules 14 and 26 shown in FIGS. 2 and 4 takes place in the transmission module
  • the transponder device 39 enables a structure in which the rear side of the chip 41 can be positioned directly on an end face 48 of the ferrite core 45 in order to achieve the most effective inductive coupling between the ferrite core
  • the chip 41 is arranged on the end face 48 of the ferrite core 45 in such a way that the end face 48, from which the magnetic field is essentially emitted, and the transponder coil 43 are in an overlap position
  • the transponder device shown in FIG. 5 is particularly suitable for use as a so-called injection transponder, in which the transponder device 39 is hermetically sealed in an injection container, for example made of glass, which can be used, for example, injected subcutaneously as a transponder for slaughter cattle identification

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Computer Hardware Design (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Near-Field Transmission Systems (AREA)

Abstract

L'invention concerne un module de transmission (14) pour la transmission de données sans contact entre une puce (15) et un dispositif de lecture (12) comprenant un montage à bobines qui comporte un élément de couplage (19) et au moins une bobine d'antenne (20) qui sont reliés électriquement l'un avec l'autre, l'élément de couplage servant à la réalisation d'un couplage inductif avec une bobine de transpondeur (18) reliée électriquement à la puce, et la bobine d'antenne servant à la réalisation d'une liaison avec le dispositif de lecture. L'élément de couplage, qui se présente sous la forme d'une bobine de couplage (19), et la bobine d'antenne (20) sont conçus différemment en ce qui concerne leurs paramètres de bobine influant sur l'impédance de bobine.
EP98909286A 1997-01-28 1998-01-27 Module de transmission pour dispositif transpondeur, et dispositif transpondeur et procede permettant de faire fonctionner un dispositif transpondeur Ceased EP0956537A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19703029 1997-01-28
DE19703029A DE19703029A1 (de) 1997-01-28 1997-01-28 Übertragungsmodul für eine Transpondervorrichtung sowie Transpondervorrichtung und Verfahren zum Betrieb einer Transpondervorrichtung
PCT/DE1998/000237 WO1998033142A1 (fr) 1997-01-28 1998-01-27 Module de transmission pour dispositif transpondeur, et dispositif transpondeur et procede permettant de faire fonctionner un dispositif transpondeur

Publications (1)

Publication Number Publication Date
EP0956537A1 true EP0956537A1 (fr) 1999-11-17

Family

ID=7818570

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98909286A Ceased EP0956537A1 (fr) 1997-01-28 1998-01-27 Module de transmission pour dispositif transpondeur, et dispositif transpondeur et procede permettant de faire fonctionner un dispositif transpondeur

Country Status (8)

Country Link
EP (1) EP0956537A1 (fr)
JP (1) JP2000510271A (fr)
KR (1) KR20000070474A (fr)
CN (1) CN1246189A (fr)
AU (1) AU6390598A (fr)
CA (1) CA2279176A1 (fr)
DE (1) DE19703029A1 (fr)
WO (1) WO1998033142A1 (fr)

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US11551050B2 (en) 2020-11-12 2023-01-10 Advanide Holdings Pte. Ltd. Card inlay for direct connection or inductive coupling technology

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WO1998033142A1 (fr) 1998-07-30
AU6390598A (en) 1998-08-18
JP2000510271A (ja) 2000-08-08
CN1246189A (zh) 2000-03-01
KR20000070474A (ko) 2000-11-25
DE19703029A1 (de) 1998-07-30
CA2279176A1 (fr) 1998-07-30

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