EP2377200B1 - Circuit d'antenne rfid - Google Patents

Circuit d'antenne rfid Download PDF

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Publication number
EP2377200B1
EP2377200B1 EP09805691A EP09805691A EP2377200B1 EP 2377200 B1 EP2377200 B1 EP 2377200B1 EP 09805691 A EP09805691 A EP 09805691A EP 09805691 A EP09805691 A EP 09805691A EP 2377200 B1 EP2377200 B1 EP 2377200B1
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EP
European Patent Office
Prior art keywords
turn
antenna
terminal
point
turns
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EP09805691A
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German (de)
English (en)
French (fr)
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EP2377200A2 (fr
Inventor
Yves Eray
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Eray Innovation SRL
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Eray Innovation SRL
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    • 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
    • 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

Definitions

  • the invention relates to an RFID and NFC antenna circuit.
  • RFID is the abbreviation of radio frequency identification (in English: “radio frequency identification”).
  • NFC is the abbreviation for Near Field Communication (near field communication).
  • RFID / NFC technology is used in many areas, for example in mobile phones, personal organizers called PDAs, computers, contactless card readers, cards themselves to be read without contact, but also passports, identification tags of articles or description of articles (in English: "tag”), USB keys and SIM cards and (U) SIM cards called “SIM card RFID or NFC", thumbnails for Dual or Dual Interface card (the sticker itself having an RFID / NFC antenna), watches.
  • the antenna of a first RFID circuit radiates electromagnetically at a distance a radio frequency signal comprising data to be received by the antenna of a second RFID circuit (transponder), which can, if necessary, respond to the first circuit by data by load modulation.
  • Each RFID circuit has its antenna operating at its own resonant frequency.
  • the problem of the RFID antenna circuit relates to the efficiency of the magnetic antenna of the transponder and the reader, or, on the efficiency of the coupling by mutual inductance between the two magnetic antennas, on the transmission energy and information between the party electronics and its antenna, on the transmission of energy and information between the two antennas of the RFID system.
  • the main objective is to gain in radio efficiency (power of the emitted or captured magnetic field, coupling, mutual inductance %) by the antenna without losing on the quality of the signal (data distortions, bandwidth of the antenna ...) issued or received.
  • the document US-A-7,212,124 discloses a mobile phone information device comprising an antenna coil formed on a substrate, a sheet of a magnetic material, an integrated circuit and resonance capacitors connected to the antenna coil.
  • the integrated circuit communicates with an external device in that the antenna coil uses a magnetic field.
  • a vacuum serving as a battery receiving section is formed on a portion of the housing surface and is covered by a battery cover.
  • the battery, the antenna coil and the sheet of magnetic material are housed in the depression.
  • a vacuum evaporated metal film or coating of conductive material is applied to the housing, while no vacuum evaporated metal film or coating of conductive material is applied to the battery cover.
  • the antenna coil is disposed between the battery cover and the battery while the sheet of magnetic material is disposed between the antenna coil and the battery in the vacuum.
  • the antenna coil has an intermediate tap, the resonance capacitors are connected to both ends of the antenna coil, and the integrated circuit is connected in the middle between one end of the antenna coil and the intermediate tap. .
  • This device has many disadvantages.
  • the antenna must have a very high quality factor before integration. But a quality factor with such a high value is not suitable for RFID / NFC antenna circuits for readers or transponders (cards, labels, USB sticks). In a mobile phone, the reason for this very high value quality factor is that the electrical and mechanical constraints overwrite the original quality factor of the antenna.
  • this quality coefficient of the antenna would be too high and would then generate a bandwidth at -3 dB of the antenna very reduced, so a very severe filtering of the modulated RF signal emitted or received by load modulation (subcarrier 13.56 MHz ⁇ 847 kHz, ⁇ 424 MHz, ⁇ 212 MHz ...), and power transmitted or received too large.
  • the coupling with such an antenna would be such that at a short distance between the 2 antennas ( ⁇ 2 cm for example), the mutual inductance created would be such that it would detune totally tuning the frequency of the two antennas, would collapse the power radiated by the reader, could saturate the radio stages of the silicon chip or could lead to destruction transponder silicon, since silicon does not have an infinite heat dispersal capacity.
  • the document US-A1-2008 / 0450693 describes an antenna device essentially for drive mode operation.
  • the proposed embodiments impose in particular two different surfaces, one large and one small, on either the same inductance or on two inductances.
  • the purpose of the last two embodiments is to make it possible to amplify the signal emitted at the center of the antenna by a small parallel inductance and, in the third embodiment, to eliminate the radiation holes on a location between the arrangement of the two antenna surfaces.
  • the documents EP-A-1031 939 and FR-A-2777141 describe a device of an antenna circuit for transponder mode operation having two independently electrically independent antenna circuits
  • a first antenna circuit is composed of a conventional inductor and the transponder chip.
  • a second antenna circuit is composed of a coil winding forming an inductance associated with a planar capacitance called "resonator".
  • the objective of the two embodiments is to allow the amplification of the electromagnetic signal received by the arrangement of the "resonator" for the first antenna circuit comprising the transponder.
  • the document EP-A-1,970,840 describes a device comparable to the two previous devices described in the documents EP-A-1031 939 and FR-A-2777141 in the sense that 2 resonators are used for the amplification of the received electromagnetic field.
  • the constraints indicated for documents EP-A-1031 939 and FR-A-2777141 are all the higher and difficult to achieve that the two resonators are close to each other.
  • This VHF 3D antenna for aircraft is close to the wavelength or close to a quarter of the wavelength as the standard antennas at VHF frequencies to get as close as possible to the desired resonance frequency.
  • This VHF 3D antenna for aircraft is dedicated for high power and allows the improvement of the Electro-Magnetic radiation pattern compared to standard loop antennas or antenna stub or dipole antenna including increasing the length of the antenna.
  • This VHF antenna for aircraft therefore has no mechanical constraint on the planar embodiment or very low volume aspects to meet the constraints of integration in environments often very low thicknesses.
  • This VHF antenna for aircraft therefore has no electrical and radiofrequency constraints on coupling, mutual inductance, near magnetic field decay, modulated data filtering, self-feeding or external field power supply and finally load modulation. which are the criteria and constraints of the small RFID / NFC 13.56MHz antennas.
  • the object of the invention is generally to obtain an antenna circuit having a transmission efficiency and conditions for implementing improved transmissions.
  • a first object of the invention is an RFID antenna circuit, comprising an antenna formed by a number of at least three turns, the antenna having a first end terminal and a second end terminal, at least two access terminals for connecting a load, at least one tuning capacity at a prescribed tuning frequency having a first capacitance terminal and a second capacitance terminal, an intermediate socket connected to the antenna and distinct from the end terminals, first means for connecting the intermediate tap to a first of the two access terminals, second means for connecting the second end terminal to the second capacitance terminal, characterized in that it comprises third connection means of the first capacitance terminal and the second of the two access terminals to a first point of the antenna and at a second point of the antenna -the second point (P2) of the antenna being connected to the second end terminal (E) of the antenna (L) by at least one turn (S) of the antenna (L) and being connected at the first point of the antenna by at least one turn of the antenna.
  • said intermediate tap (A) is connected to the first end terminal (D) of the antenna (L) by at least one turn (S) of the antenna (L) said intermediate tap (A) being connected to the second end terminal (E) of the antenna (L) by at least one turn (S) of the antenna (L).
  • figures 13 , 14 , 15 , 16 the first point (P1) is connected to the intermediate point (A) by at least one turn of the antenna.
  • figures 13 , 14 , 15 , 16 the first point (P1) is located at the intermediate point (A).
  • the first point (P1) is connected to the first end terminal (D) of the antenna (L) by at least one turn (S) of the antenna (L).
  • the first point (P1) being connected to the second end terminal (E) of the antenna (L) by at least one turn (S) of the antenna (L).
  • the first point (P1) is located at the first end terminal (D).
  • the second point (P2) is located at the first end terminal (D) of the antenna.
  • the second point (P2) is located at the second end terminal (E) of the antenna.
  • the second point (P2) is connected to the intermediate tap (A) by at least one turn of the antenna.
  • the second point (P2) is connected to the first end terminal (D) of the antenna (L) by at least one turn (S) of the antenna (L) .
  • the first point (P1) is located at the intermediate point (A) of the antenna (L) and the second point (P2) is located at the first terminal (D) of end of the antenna (L).
  • said first and second points (P1, P2) are distinct from the first intermediate tap (A), the first point (P1) being connected to the first end terminal (D) of the antenna (L) by at least one turn (S) of the antenna (L), the first point (P1) being connected to the second end terminal (E) of the antenna (L) by at least a turn (S) of the antenna (L).
  • the second point (P2) is located at the first end terminal (D) of the antenna, the first point (P1) is connected to the intermediate tap (A) by at least one turn of the antenna.
  • said intermediate tap (A) forms a first intermediate tap (A), the first intermediate tap (A) being connected to the first end terminal (D) of the antenna (L). ) by at least one turn (S) of the antenna (L), the first intermediate tap (A) being connected to the second end terminal (E) of the antenna (L) by at least one turn (S ) of the antenna (L), the second point (P2) is located at a second intermediate point (P2) of the antenna (L), the second intermediate point (P2) being connected to the first terminal (D) of the end of the antenna (L) by at least one turn (S) of the antenna (L), the second intermediate tap (P2) being connected to the second end terminal (E) of the antenna (L) by at least one turn (S) of the antenna (L).
  • the capacitance comprises a first metal surface forming the first capacity terminal (C1X), a second metal surface forming the second capacitance terminal (C1E), at least one dielectric layer situated between the first metal surface and the second metal surface.
  • the capacitance comprises at least one dielectric layer having a first side and a second side remote from the first side, a first metal surface forming the first capacitance terminal (C1X) on the first side of the dielectric layer, a second metal surface forming the second capacitance terminal (C1E) on the second side of the dielectric layer, a third metal surface forming a third terminal (C1F) of capacitance remote from the first metal surface on the first side of the dielectric layer, the first capacitance terminal (C1X) defining a first capacitance value (C2) with the second capacitance terminal (C1E), the third capacitance terminal (C1F) defining a second capacitance value (C1) with the second capacitance terminal (C1E), the first capacitance terminal (C1X) defining a third capacitance value (C12) for coupling with the third capacitance terminal (C1F), means for connecting the third capacitance terminal (C1F) to one of the access
  • the antenna (L) comprises at least a first turn (S1), at least a second turn and at least a third turn, which are consecutive, the first turn (S1) going from the second end terminal (E) in a first winding direction at a cusp point (PR) connected to the second turn, the second and third turns (S2, S3) running from said cusp point (PR) to the first end terminal (D) in a second reverse winding direction of the first winding direction, the first point (P1) of the antenna (L) and the second point (P2) of the antenna (L) being located on the second and third turns (S2, S3).
  • the antenna (L) comprises at least a first turn (S1) and at least a second turn (S2, S3) consecutive between two third and fourth points (E; D) of the antenna, the first turn (S1) being connected to the second turn (S2, S3) by a cusp (PR), the first turn (S1) from the third point (E) to the point (PR) of creep in a first winding direction, the second turn (S2, S3) from said reversal point (PR) to the fourth point (D) in a second reverse winding direction of the first winding direction.
  • PR cusp
  • the antenna (L) has at least a first turn (S1) and at least a second turn (S2, S3) consecutive between two third and fourth points (E; D) of the antenna, the first turn (S1) being connected to the second turn (S2, S3) by a reversing point (PR), the first turn (S1) going from the third point (E) to the cusp point (PR) in a first direction of winding, the second turn (S2, S3) from said reversal point (PR) to the fourth point (D) in a second direction of reverse winding of the first direction of winding, the first point (P1) is located at the intermediate point (A) of the antenna (L) and the second point (P2) is located at the first terminal (D) of the end of the antenna (L).
  • PR reversing point
  • the antenna (L) comprises at least a first turn (S1) and at least a second turn (S2, S3) consecutive between two third and fourth points (E; D) of the antenna, the first turn (S1) being connected to the second turn (S2, S3) by a reversal point (PR), the first turn (S1) from the third point (E) to the cusp (PR) in a first winding direction, the second turn (S2, S3) from said reversal point (PR) to the fourth point (D) in a second direction of reverse winding of the first direction of winding, the first point (P1) is located at the first end terminal (D).
  • PR reversal point
  • At least one turn (S2) of the antenna comprises in series a winding (S2 ') of turns of smaller surface area surrounded with respect to the surface surrounded by the remainder (S2 ") of said turn (S2) or with respect to the surface surrounded by other turns of the antenna (3).
  • the turns (S) of the antenna (3) are distributed over several distinct physical planes.
  • the capacity (C1) of agreement comprises a second capacitance (ZZ) formed by at least a third turn (SC3) comprising two first and second ends (SC31, SC32) and by at least a fourth turn (SC4) having two first and second ends (SC41, SC42), the third turn (SC3) being electrically separated from the fourth turn (SC4) to define at least the capacity (C1) of agreement between the first end (SC31) of the third turn (SC3) and the second end (SC42) of the fourth turn (SC4), the first end (SC31) of the third turn being further away from the second end (SC42) of the fourth turn (SC4) than from the first end (SC41) of the fourth turn (SC4), the second end (SC32) of the third turn (SC3) being farther away from the first end (SC41) of the fourth turn (SC4) than from the second end (SC42) of the fourth turn (SC4), the second capacity being defined between the first end (SC31) ) of the third turn (SC3) and the second end
  • first coupling means are provided for coupling (COUPL12) by mutual inductance between on the one hand the at least one turn (S2) of the antenna connected electrically in parallel with the first and second terminals (1, 2) access and the other at least one turn (S1) of the antenna
  • second coupling means are provided to ensure coupling (COUPLZZ) by mutual inductance between said other at least one turn (S1) of the antenna and the at least one third and fourth turns (SC3, SC4) of the second capacitance (ZZ).
  • the first coupling means are made by the proximity between on the one hand the at least one turn (S2) of the antenna electrically connected in parallel with the first and second terminals (1, 2) and the other at least one turn (S1) of the antenna
  • the second coupling means are formed by the proximity between the other at least one turn (S1) of the antenna and the at least one third and fourth turns (SC3, SC4) of the second capacitance (ZZ).
  • the third turn (SC3) and the fourth turn (SC4) are interleaved.
  • the third turn (SC3) comprises at least a third section adjacent to a fourth section of the fourth turn (SC4).
  • the sections extend parallel to each other.
  • the tuning capacitor (C1) comprises a first capacitor (C1) having a dielectric between the first capacitance terminal (C1X) and the second capacitance terminal (C1E), the first capacitor (C1). (C1) being in the form of a wire element, engraved, discrete or printed.
  • figures 16 , 18 another capacitor (C30) is connected between the second end terminal (E) and a point (PC1) of the antenna, which is connected to the second point (P2) by at least one turn of the antenna.
  • the tuning capacity (C1) has a first capacitance (C30) in series with said second capacitance (Z).
  • figure 22 the first capacitor (C30) is connected between the second end terminal (E) of the antenna and the second point (P2), which is connected to the first terminal (SC31) of the third turn (SC3), the intermediate tap (A) being connected to the second terminal (SC42) of the fourth turn (SC4), which forms the first point (P1), the first terminal (SC41) of the fourth turn (SC4) forming the first terminal (D4) ) end of the antenna.
  • figure 20 the first capacitor (C30) is connected between the second end terminal (E) of the antenna and the second point (P2), which is connected to the first terminal (SC31) of the third turn (SC3) by at least one turn (S10), the intermediate tap (A) being connected to the second terminal (SC42) of the fourth turn (SC4), which forms the first point (P1), the first terminal (SC41) of the fourth turn ( SC4) forming the first end terminal (D) of the antenna.
  • figure 21 the first point (P1) is located at the intermediate point (A), the second point (P2) is located at the second end terminal (E) of the antenna.
  • figure 19 the first point (P1) is located at the first end terminal (D) and the second point (P2) is located at the second end terminal (E).
  • the at least one third turn (SC3) and the at least one fourth turn (SC4) define a second sub-circuit having a second natural resonance frequency, the first and second terminals (1). , 2) of access define with a module (M) connected to them and with at least one turn (S2) connected to said first and second terminals (1, 2) of access a first sub-circuit having a first resonance frequency the turns being arranged so that the frequency difference between the first natural resonance frequency and the second own resonance frequency is less than or equal to 10 MHz and for example less than or equal to 2 MHz.
  • the at least one third turn (SC3) and the at least one fourth turn (SC4) define a second sub-circuit having a second natural resonance frequency
  • the first and second terminals (1). , 2) of access define with a module (M) connected to them and with at least one turn (S2) connected to said first and second terminals (1, 2) of access a first sub-circuit having a first resonance frequency the turns being arranged so that the frequency difference between the first natural resonance frequency and the second natural resonance frequency is less than or equal to 500KHz.
  • the at least one third turn (SC3) and the at least one fourth turn (SC4) define a second sub-circuit having a second natural resonance frequency, the first and second terminals (1). , 2) of access define with a module (M) connected to them and with at least one turn (S2) connected to said first and second access terminals (1,2) a first sub-circuit having a first resonance frequency the turns being arranged so that the first natural resonance frequency and the second natural resonance frequency are substantially equal.
  • the antenna has a midpoint (PM) for setting a potential to a reference potential, with an equal number of turns on the section from the first end terminal (D) to the midpoint (PM) and on the section from the middle point (PM) to the second end terminal (E).
  • PM midpoint
  • the antenna is on a substrate.
  • the antenna is a wire.
  • said terminals (D, E, 1, 2, C1E, CIX), said tap (A), said points (P1, P2) and the capacitance (C1, ZZ) define a plurality at least three nodes, the nodes defining at least one first group (S1) of at least one turn between two first nodes (1, C1E) distinct from each other and at least one second group of at least one other turn ( S2) between two second nodes (1, 2) which are distinct from one another, at least one of the first nodes being different from at least one of the second nodes, first coupling means are provided for coupling (COUPL I 2) by mutual inductance between on the one hand the first group (S1) of at least one turn and on the other hand the second group of at least one other turn (S2) in that the first group (S1) of at least a turn is positioned near the second group of at least one other turn (S2).
  • said terminals (D, E, 1, 2, C1E, CIX), said tap (A), said points (P1, P2) and the capacitance (C1, ZZ) define a plurality at least three nodes, the nodes defining at least one first group (S1) of at least one turn between two first nodes (1, C1E) distinct from each other, and at least one second group of at least one other turn (S2) between two second nodes (1, 2) which are distinct from one another and at least one third group of at least one other turn (SC3, SC4) between two third nodes (E, C1X) which are distinct from each other, at least one of first nodes being different from at least one of the second nodes, at least one of the first nodes being different from at least one of the third nodes, at least one of the third nodes being different from at least one of the second nodes, first coupling means are provided for coupling (COUPL12) by mutual inductance between on the one hand the first group (S1) of at least one turn and
  • the first group (S1) of at least one turn is positioned between the second group of at least one other turn (S2) and the third group of at least one other turn ( SC3, SC3, SC4).
  • the spacing distance between the turns (S1, S2, SC3, SC4) belonging to different groups is less than or equal to 20 millimeters.
  • the spacing distance between the turns (S1, S2, SC3, SC4) belonging to different groups is less than or equal to 10 millimeters.
  • the spacing distance between the turns (S1, S2, SC3, SC4) belonging to different groups is less than or equal to 1 millimeter.
  • the spacing distance between the turns (S1, S2, SC3, SC4) belonging to different groups is greater than or equal to 80 micrometers.
  • At least one reader (LECT) as a load and / or at least one transponder (TRANS) as a load is connected to the access terminals (1, 2).
  • the circuit comprises a plurality of first distinct access terminals (1) and / or a plurality of second access terminals (2) which are distinct from each other.
  • said at least one first access terminal (1) and said at least one second access terminal (2) are connected to at least one first load (Z1) having a first frequency tuned in a high frequency band and at least a second load (Z2) having a second tuning frequency prescribed in another ultra high frequency band.
  • the invention it is possible to maintain a reasonable quality factor or limit its increase (the quality factor being equal to the resonance frequency divided by the bandwidth at -3 dB), in order to keep a reasonable bandwidth or slightly increased while maintaining or increasing the power radiated or received by the antenna and maintaining or decreasing the mutual inductance generated during coupling with the second external RFID antenna circuit.
  • the number of turns is imposed by the compromise between the surface of the antenna and the silicon capacitance and the desired tuning frequency (around 13.56 MHz to 20 MHz).
  • the desired tuning frequency around 13.56 MHz to 20 MHz.
  • the circuit according to the invention in transmission or reception, makes it possible in particular to reduce the mutual inductance with the second external RFID antenna circuit operating in reception or transmission, because the current density is mainly concentrated in the active part. the inductance of the antenna. Simplifying in a technical extension, the mutual inductance between two circuits is proportional to the number of turns of the circuits vis-à-vis. By decreasing the mutual inductance, the disturbing action is limited to the frequency agreements of the antenna circuits at short distances ( ⁇ 2 cm for example). This Decrease of the mutual inductance is not done to the detriment of the radiated or received power.
  • the magnetic field radiated or captured depends on the number of turns in the antenna. It is therefore necessary to increase the number of turns.
  • the coupling coefficient is inversely related to the inductances of the 2 antennas. By decreasing the inductance of the antennas, then the coupling coefficient between the 2 antennas increases. It is also necessary to either increase the mutual inductance or limit the loss on mutual inductance.
  • the mutual inductance is a function of the number of turns of the antennas. So by increasing the number of turns of the antenna, then the mutual inductance between the 2 antennas increases. Considering the coupling coefficient, ideally do not increase the inductances of the antennas.
  • the bandwidth is a function of the inductance of the antenna and inverse function of the resistance of the antenna. It is therefore ideally to reduce the inductance and increase the resistance of the antenna.
  • the mutual inductance must increase or be equal and / or the inductance of the antenna must decrease.
  • the inductance of the antenna must decrease or be equal and / or the resistance of the antenna must increase.
  • the solution according to the invention gives the possibility of parameterizing, by the method of the invention, the distribution of the current in the antenna such as for example to have a different current density in at least two turns constituting the antenna therefore of do not have a uniform current in the antenna and therefore a different current in at least 2 different turns.
  • the circuit includes means for making the distribution of current between the two ends of the antenna nonuniform.
  • the antenna circuit may be a circuit for emitting electromagnetic radiation by the antenna, as well as a circuit for receiving electromagnetic radiation by the antenna.
  • the RFID antenna circuit is of the transponder type, to operate as a portable card, tag (in English: "tag”), to be integrated in a paper document, such as for example a document issued by an official authority, such as a passport, USB keys and SIM cards and (U) SIM cards called "RFID or NFC SIM card", thumbnails for Dual or Dual Interface card (the sticker itself having an RFID antenna / NFC), watches.
  • the RFID antenna circuit is of the reader type to read, that is to say at least receive, the signal radiated by the RFID antenna of a transponder as defined in the first cases like mobile phones, personal organizers said "PDA", computers.
  • the circuit comprises an antenna 3 formed by at least three turns S of a conductor on an insulating substrate SUB.
  • the turns S have an arrangement defining an inductance L having a determined value between a first end terminal D of the antenna 3 and a second end terminal E of the antenna 3.
  • the antenna 3 is formed by three consecutive turns S1, S2, S3 from the outer end terminal E to the inner end terminal D.
  • a first access terminal 1 is connected by a conductor CON1A to an intermediate point or point A of the antenna 3 between its end terminals D, E.
  • a capacity C according to a prescribed tuning frequency that is to say at a resonance frequency, for example from 13.56 MHz up to 20 MHz, is provided in combination with the inductance L of the antenna 3.
  • the second end terminal E of the antenna 3 is connected by a conductor CON2E to the second terminal C1E of the capacitor C.
  • the first terminal C1X of the capacitor C is connected by a conductor CON31 to the intermediate tap A forming a first point P1 of the antenna 3.
  • a second access terminal 2 is connected by a conductor CON32 to the first end terminal D forming a second point P2 of the antenna 3.
  • the point P2 is different from the point A.
  • the two access terminals 1, 2 are used to connect a load.
  • the intermediate tap A, P1 is connected to the end terminal D by at least one turn S of the antenna L, ie a turn S3 at the figure 1 .
  • the intermediate tap A, P1 is connected to the second end terminal E of the antenna L by at least one turn S of the antenna L, ie two turns S1 and S2 on the figure 1 , where the intermediate tap A is located between the turns S3 and S2.
  • the points D, E, 1, 2, A, C1E, C1X, P1, P2 form electrical nodes of the circuit.
  • the points directly connected to each other form the same node, for example when the connection means are electrical conductors.
  • Two distinct nodes are connected by at least one turn.
  • the circuit of the Figure 1A has a first inductance L1, called active inductance, formed by the third turn S3, between the access terminals 1, 2.
  • a second inductor L2 called passive inductance, formed by the first turn S1 and the second turn S2.
  • the second inductance L2 is in parallel with the capacitor C between the intermediate tap A and the terminal E.
  • the sum of the first inductance L1 and the second inductor L2 is equal to the total inductance L of the antenna 3.
  • the antenna 3 has a resistance in series with its inductance L as well as inter-turn coupling capacitors, which however have not been shown in all the figures.
  • the capacity C can be of any type of technology and method of production.
  • the capacitor C is planar type being disposed on the free zone of the substrate, present in the middle of the turns S.
  • capacitance C is formed by a capacitor having a first metal surface SIX forming the first capacitance terminal C1X, a second metal surface S1E supported by the substrate and forming the second capacitance terminal C1E.
  • One or more dielectric layers are located between the first metal surface SIX and the second metal surface S1E.
  • FIG. 2A and 2B is a variant of the embodiment shown in Figures 1A and 1B .
  • the intermediate tap A, P1 is located between the turns S1 and S2.
  • the intermediate tap A, P1 is connected to the end terminal D by at least one turn S of the antenna L, two turns S2 and S3.
  • the intermediate tap A, P1 is connected to the second end terminal E of the antenna L by at least one turn S of the antenna L, a turn S1.
  • Capacity C is formed by a capacitor having one or more dielectric layers having a first side and a second side remote from the first side.
  • the first metal surface S1X forms the first capacitance terminal C1X on the first side of the dielectric layer.
  • a second metal surface S1E forms the second capacitance terminal C1E on the second side of the dielectric layer.
  • the first metal surface SIX defines with the second metal surface S1E a capacitance value C2.
  • a third metal surface S1F forms a third terminal C1F of the capacitance C.
  • the third metal surface S1F is located on the same first side of the dielectric layer at a distance as the first metal surface SIX but at a distance from this first metal surface SIX.
  • the third capacity terminal C1F is connected by a conductor CON33 to the end terminal D.
  • the third metal surface S1F defines with the second metal surface S1E a capacitance value C1.
  • the third metal surface S1F is coupled to the first metal surface S1X in that they share the same reference terminal C1E formed by the surface S1E, to form a coupling capacitance called C 12.
  • the circuit of the Figure 2A has a first inductance L1, called active inductance, formed by the second turn S2 and the third turn S3, between the access terminals 1, 2. Between the intermediate tap A and the terminal E is a second inductor L2, called inductance passive, formed by the first turn S1. The sum of the first inductance L1 and the second inductance L2 is equal to the total inductance L of the antenna 3.
  • the second inductor L2 is in parallel with the capacitor C2 between the intermediate socket A and the terminal E.
  • the first inductance L1 is in parallel with the coupling capacitance C12.
  • the capacitor C1 is connected on the one hand to the terminal D and on the other hand to the terminal E.
  • the embodiment shown in Figures 3A and 3B is a variant of the embodiment shown in Figures 2A and 2B .
  • the first point P1 is distinct from the first intermediate tap A and is spaced from this first intermediate tap A by at least one turn S.
  • the antenna 3 is formed by four consecutive turns S1, S2, S3, S4 of the terminal E from outer end to the inner end terminal D.
  • capacity C is of the type of Figures 2A and 2B .
  • the first intermediate tap A is located between turns S2 and S3.
  • the first intermediate tap A is connected to the end terminal D by at least one turn S of the antenna L, ie the two turns S3 and S4.
  • the intermediate tap A is connected to the second end terminal E of the antenna L by at least one turn S of the antenna L, ie the two turns S2 and S1.
  • the access terminal 1 is connected to the first intermediate socket A by the conductor CON1A.
  • the access terminal 2 is connected to the terminal D, which is not connected to the terminal C1F.
  • the load Z is for example a chip generally designated by "silicon”. This chip can also be present in general between the access terminals.
  • the terminal C1X is connected by the conductor CON31 to a first point P1 of the antenna 3, distinct from its terminals D, E.
  • the first point P1 is located between the turns S3 and S4.
  • the first point P1 is connected to the end terminal D by at least one turn S of the antenna L, ie the turn S4.
  • the first point P1 is connected to the second end terminal E of the antenna L by at least one turn S of the antenna L, ie the three turns S3, S2 and S1.
  • Terminal D forms the second point P2.
  • the third capacity terminal C1F is connected by a conductor CON33 to the access terminal 1.
  • the terminal C1E is connected by a conductor CON2E to the terminal E.
  • the circuit of the figure 3A has a first inductance L1, called active inductance, formed by the turn S4 between the terminal 2 and the point P1. Between the point P1 and the plug A is a second inductor L11, also called active, formed by the turn S3.
  • the sum of the first inductance L1, the second inductance L11 and the third inductance L3 is equal to the total inductance L of the antenna 3.
  • the third inductance L3 is in parallel with the capacitor C1 between the intermediate socket A and the terminal E.
  • the second inductor L11 is in parallel with the coupling capacitance C12.
  • the capacitor C2 is connected on the one hand to the point P1 and on the other hand to the terminal E.
  • the capacity C could be of the type of that of the Figure 1A , ie having instead of C1 and C12 only the capacitance C between P1 and E to Figures 3A and 3B .
  • the embodiment shown in Figures 4A and 4B is a variant of the embodiment shown in Figures 1A and 1B .
  • the antenna 3 is formed from the second end terminal E to the first terminal D by a first turn S1, a second turn S2 and a third turn S3, which are consecutive.
  • the turns S1 then S2 go from the second terminal E end to a point PR of creep in a first winding direction, corresponding to the Figure 4A clockwise.
  • the turn S3 goes from the reversal point PR to the first end terminal D in a second direction of winding opposite to the first direction of winding, and therefore reverses from the direction of the clockwise to the Figure 4A .
  • the turn S3 is reversed direction inward with respect to the outer turns S2 and S3.
  • the first point P1 forming the first intermediate tap A of the antenna connected to the access terminal 1, is located at the point PR of cusp.
  • the positive direction of the current in the antenna 3 is that going from the recoiling point PR to the terminal E, coinciding in this example with the greatest number of turns going in the same direction, as indicated by the arrows drawn on the antenna 3.
  • the arrows drawn on the turns S1 and S2 correspond to this positive direction of the current.
  • the circuit of the Figure 4A has a second positive inductance + L2, called passive inductance, formed by turns S2 and S1.
  • the sum of the first inductance L1 in absolute value and the second inductance L2 is equal to the total inductance L of the antenna 3.
  • the negative inductance -L1 makes it possible to further reduce the mutual inductance generated by the antenna 3.
  • the embodiment shown in Figures 5A and 5B is a variant of the embodiment shown in Figures 1A and 1B .
  • the antenna 3 is formed by three consecutive turns S1, S2, S3 of the end terminal E outside the inner end terminal D forming the first point P1 of the antenna.
  • a first access terminal 1 is connected by a connection means CON1A to a first intermediate socket A of the antenna 3 between its end terminals D, E.
  • the connection means CON1A is for example a capacitor C10.
  • the second access terminal 2 is connected by a connection means CON32 to a second intermediate socket P2 forming a second point P2 of the antenna 3.
  • the connection means CON32 is for example a capacitor C20.
  • a capacity C according to a prescribed tuning frequency that is to say at a resonance frequency, for example 13.56 MHz, is provided in combination with the inductance L of the antenna 3.
  • the second end terminal E of the antenna 3 is connected by a conductor CON2E to the second terminal C1E of the capacitor C.
  • the first terminal C1X of the capacitor C is connected by a conductor CON31 to the terminal D, P1 of the antenna 3.
  • the two access terminals 1, 2 are used to connect a load.
  • the intermediate tap A is located between the turns S3 and S2.
  • the intermediate plug P2 is located between the turns S1 and S2.
  • the intermediate terminal A is connected to the end terminal D by at least one turn S of the antenna L, ie the turn S3 in the embodiment shown.
  • the intermediate tap A is connected to the second end terminal E of the antenna L by at least one turn S of the antenna L, ie two turns S1 and S2 in the embodiment shown.
  • the intermediate plug P2 is connected to the end terminal D by at least one turn S of the antenna L, ie the turn S2 and the turn S3 in the embodiment shown.
  • the intermediate tap P2 is connected to the second end terminal E of the antenna L by at least one turn S of the antenna L, ie the turn S1 in the embodiment shown.
  • the circuit of the Figure 5A has a first inductance L1, called active inductance, formed by the second turn S2, between points A and P2. Between the intermediate tap P2 and the terminal E is a second inductor L2, called passive inductance, formed by the first turn S1. Between the intermediate tap A and the terminal D is a third inductor L3, called passive inductance, formed by the third turn S3.
  • the sum of the first inductance L1, the second inductance L2 and the third inductance L3 is equal to the total inductance L of the antenna 3.
  • the embodiment shown in Figures 6A and 6B is a variant of the embodiment shown in Figures 5A and 5B .
  • a fourth additional tuning capacitor C4 is connected between the intermediate tap A and the second tap P2 in parallel with the first inductor L1.
  • the fourth capacitor C4 participates in the frequency tuning with C, particularly on the second inductor L2.
  • the embodiment shown in Figures 6A and 6B makes it possible to increase the efficiency of the antenna 3.
  • the embodiment shown in Figures 7A and 7B is a variant of the embodiment shown in Figures 5A and 5B .
  • the antenna 3 is formed by four consecutive turns S1, S21, S22, S3 from the outer end terminal E to the inner end terminal D.
  • the first point P1 is formed by the end terminal D of the antenna.
  • Intermediate tap A is located between turns S3 and S22.
  • the intermediate plug P2 is located between the turns S1 and S21.
  • the intermediate terminal A is connected to the end terminal D by at least one turn S of the antenna L, ie the turn S3 in the embodiment shown.
  • the intermediate tap A is connected to the second end terminal E of the antenna L by at least one turn S of the antenna L, ie three turns S1, S21 and S22 in the embodiment shown.
  • the catch intermediate P2 is connected to the terminal D end by at least one turn S of the antenna L, three turns S21, S22 and S3 in the embodiment shown.
  • the intermediate tap P2 is connected to the second end terminal E of the antenna L by at least one turn S of the antenna L, ie the turn S1 in the embodiment shown.
  • the circuit of the Figure 5A has a first inductance L1, called active inductance, formed by the three second turns S21, S22 and S3, between points P1 and P2. Between the intermediate tap P2 and the terminal E is a second inductor L2, called passive inductance, formed by the first turn S1. Between the intermediate tap A and the terminal D is a third inductor L3, called passive inductance, formed by the third turn S3.
  • the sum of the first inductance L1, the second inductance L2 and the third inductance L3 is equal to the total inductance L of the antenna 3.
  • the embodiment shown in Figures 8A and 8B is a variant of the embodiment shown in Figures 5A and 5B .
  • the antenna 3 is formed by six consecutive turns S1, S2, S31, S32, S33 and S34 from the outer end terminal E to the inner end terminal D.
  • the first point P1 is formed by the end terminal D.
  • At least one turn S between the first point P1 and the second point P2 ie the turns S2, S31, S32, S33 and S34, that is to say five second turns in the mode. embodiment shown.
  • the intermediate tap A is located between the turns S2 and S31.
  • the intermediate plug P2 is located between the turns S1 and S2.
  • the intermediate tap A is connected to the end terminal D by at least one turn S of the antenna L, ie the four turns S31, S32, S33 and S34 in the embodiment shown.
  • the intermediate tap A is connected to the second end terminal E of the antenna L by at least one turn S of the antenna L, ie the two turns S1, S2 in the embodiment shown.
  • the intermediate tap P2 is connected to the end terminal D by at least one turn S of the antenna L, ie the five turns S2, S31, S32, S33 and S34 in the embodiment shown.
  • the intermediate tap P2 is connected to the second end terminal E of the antenna L by at least one turn S of the antenna L, ie the turn S1 in the embodiment shown.
  • the circuit of the figure 8A has a first inductance L1, called active inductance, formed by the second turns S2, S31, S32, S33 and S34, between points P1 and P2.
  • a first inductance L1 called active inductance
  • second inductor L2 called passive inductance
  • passive inductance formed by the first turn S1.
  • a third inductor L3, called passive inductance formed by the four turns S31, S32, S33 and S34.
  • the sum of the first inductance L1, the second inductance L2 and the third inductance L3 is equal to the total inductance L of the antenna 3.
  • the capacitor C is formed for example by a capacitor of the planar type as in the Figure 1A .
  • the capacitance C, C1, C2 is for example of the planar type described.
  • the capacitance C may be in the form of an added capacitor component, instead of being of the planar type.
  • the embodiment shown in Figures 9A and 9B is a variant of the embodiment shown in Figures 5A and 5B .
  • the antenna 3 is formed from the second end terminal E to the first terminal D by a first turn S1, a second turn S2 and a third turn S3, which are consecutive.
  • the turn S1 goes from the second terminal E end to a point PR of creep in a first direction of winding, corresponding to the Figure 9A clockwise.
  • the turns S2 and S3 go from the reversal point PR to the first end terminal D in a second direction of winding opposite to the first direction of winding, and therefore reverse the direction of the clockwise at the Figure 9A .
  • the turn S1 is of direction reversed outside with respect to the internal turns S2 and S3.
  • the first point P1 is formed by the terminal D.
  • the second point P2 forming the second intermediate point of the antenna connected to the access terminal 2 is located at the point PR of cusp.
  • the circuit of the Figure 9A has a first positive inductance L1, called active inductance, formed by the second turn S2, between points A and P2.
  • the sum of the first inductance L1, the second inductance L2 in absolute value and the third inductance L3 is equal to the total inductance L of the antenna 3.
  • the negative inductance -L2 makes it possible to further reduce the mutual inductance generated by the antenna 3.
  • FIG. 11A and 11B is a variant of the embodiment shown in Figures 5A and 5B .
  • connection means CON1A is for example an electrical conductor.
  • connection means CON32 is for example an electrical conductor.
  • the capacity C is of the type of that of the Figure 2A .
  • the second end terminal E of the antenna 3 is connected by a conductor CON2E to the second terminal C1E of the capacitor C.
  • the first terminal D is connected to the terminal C1F of the capacitor C by the conductor CON33.
  • the point P1 is formed by the terminal D.
  • the first terminal C1X of the capacitor C is connected by a conductor CON31 to the terminal D.
  • the terminal C1F is connected to the access terminal 2.
  • the capacitor C1 is in parallel with the inductance L2 between the terminal E and the point P2.
  • the capacitor C2 is connected between the terminals D and E.
  • the coupling capacitor C12 is connected between the second point P2 and the terminal D.
  • connection means such as CON1A, CON32, terminals 1, 2 of access to the antenna can be capacitance, conductor or other, such as for example active elements, in particular of the transistor or amplifier type.
  • any additional load or frequency or power matching circuit can be connected to the access terminals 1, 2, for example a chip, in particular a silicon-based chip, as well in the so-called transponder case. only in the case said reader.
  • connection means of the terminals 1, 2 for access to the antenna of the Figures 5A , 6A , 7A , 8A , 9A can also be drivers. It is also possible to add an active or passive element, such as for example a capacitance, to terminals 1, 2 of access to Figures 1A, 2A , 3A , 4A .
  • the antenna can be made of wired, engraved, printed (printed circuit board), copper, aluminum, silver particles or aluminum and any other electrical conductor and any other non-electrical conductor but chemically predicted to this effect.
  • the turns of the antenna can be made in multi-layers, superimposed or not, in whole or in part.
  • At least one turn S2 of the antenna may comprise in series a winding S2 'of turns of smaller area surrounded with respect to the surface surrounded by the remainder S2 "of the turn S2 or with respect to the surface surrounded by the others turns of the antenna 3, in order to increase the resistance or the inductance of the turn S2 without accentuating the coupling, the mutual inductance and the general radiation of the antenna 3.
  • the capacity (s) can be in discrete element (component) or made in planar technology.
  • the capacitance (s) can be added to the antenna during the manufacturing process of the windings of turns as an element outside the printed circuit board and the antenna, especially in wire technology.
  • the capacitance (s) can be integrated in a module, in particular silicon.
  • the capacitance (s) can be integrated and realized on a printed circuit board.
  • the turns S of the antenna 3 can be distributed over several different physical planes, for example parallel.
  • the turns are formed of sections, for example rectilinear but may also have any other shape.
  • the turns of the antenna may be in the form of a wire which will then be heated to be embedded on or in an insulating substrate.
  • the turns of the antenna can be etched on an insulating substrate.
  • the turns of the antenna may be on opposite sides of an insulating substrate.
  • the turns are for example in the form of parallel ribbons.
  • a load module M such as for example a chip, the module M being connected between the first access terminal 1 and the second terminal 2 access.
  • the antenna L is formed by the turns S1, S2 located between the first terminal D end and the second terminal E end.
  • the first terminal D is connected to the second access terminal 2 forming the second point P2.
  • the tuning capacity C1 at a prescribed tuning frequency has a first capacitance terminal C1X and a second capacitance terminal C1E.
  • the first capacitance terminal C1X is connected to the first terminal 1 by means CON31 at the first access terminal 1.
  • the second capacitance terminal C1E is connected to the second end E terminal.
  • the second point P2 is formed by the second access terminal 2.
  • the first point P1 of the antenna and the intermediate point A of the antenna are formed by the first terminal 1 access.
  • the second point P2, 2 of the antenna L is connected to the first point P1, 1, A of the antenna L by at least a first turn S1 of the antenna L.
  • the antenna L is formed by one or more second turns S1 between E and A, for example by two second turns S1, connected by point A to one or more turns S2 from point A to terminal D, for example three turns S2.
  • the tuning capacitor C1 is formed by one or more third turns SC3 (for example five turns SC3) having two first and second ends SC31, SC32 and by one or more fourth turns SC4 (for example five turns SC4) comprising two first and second ends SC41, SC42.
  • third turns SC3 for example five turns SC3
  • fourth turns SC4 for example five turns SC4
  • the at least one third turn SC3 is distinct from the turns S1, S2 forming the antenna L and is connected to one E of the end terminals of the antenna L.
  • the at least one fourth turn SC4 is distinct from the turns S1 , S2 forming the antenna L and is electrically separated from the third turns SC3, for example along the third turns SC3, so that the turns SC3 are arranged facing the turns SC4, for example by having parallel sections.
  • the end SC31 forms the terminal C1E and is connected to the terminal E.
  • the end SC32 is free and isolated from SC4.
  • the SC41 end is free and isolated from SC3.
  • the end SC42 forms the terminal C1X and is connected to the intermediate socket A, 1, P1.
  • the end SC31 is remote from the end SC42, while being close and isolated from the end SC41.
  • the end SC42 is remote from the end SC31, while being close and isolated from the end SC32.
  • the impedance ZZ located between the ends SC31, SC42 serving to connect the capacitor C1 to the rest of the circuit also bring back an inductor.
  • the impedance ZZ between the connection ends SC31, SC42 may for example be seen as comprising a resonant capacitive-inductive circuit parallel and / or series according to the figure 33 , having two parallel branches, in one of the branches the capacitance C1 and in the other branch a capacitance in series with an inductance. Therefore, the ZZ impedance seen between the connection ends SC31, SC42 has the capacitance C1.
  • the value of the capacitance C1 of the impedance ZZ depends on the relation between the turns SC3 and SC4, and in particular their mutual arrangement, for example adjacent.
  • the impedance ZZ formed by the at least one third turn SC3 and the at least one fourth turn SC4 is self-resonant, because a capacitance and a series and / or parallel inductance are contained in the impedance ZZ.
  • the equivalent circuit diagram of the circuit shown in figure 12 is represented at the figure 34 .
  • the at least one third turn SC3 and the at least one fourth turn SC4 make it possible to equalize the tuning frequency of the module M (for example chip) lying in parallel with an inductance (turn (s) S2) on the frequency of tuning the circuit formed by the at least a third turn SC3 and the at least a fourth turn SC4, for example to have the tuning frequency prescribed at 13.56 MHz.
  • the aim is to have the inductance contained in the self-resonant circuit ZZ, SC3, SC4 as small as possible in order to allow the integration of the antenna circuit into a small area ⁇ 16 cm 2, for example a tag (tag in English) or a sticker circuit (in English: sticker).
  • one of the advantages of the invention is the possibility of parameterizing the mutual inductance between the antenna circuits, for example, between, on the one hand, the antenna circuit comprising the transponder chip or reader and on the other hand a first and a second antenna part, so as to set the mutual final inductance of the transponder or reader system.
  • At least one electrical connection is provided between a first antenna circuit comprising the chip and at least one second (or more) antenna circuit comprising at least one capacitive element.
  • the devices according to the documents EP-A-1031 939 and FR-A-2777141 do not make it possible to produce two frequency agreements that are almost independent of each other or two frequency agreements that are very close to each other, for example ⁇ 10 MHz, ⁇ 2 MHz or ⁇ 500 KHz or 2 frequency agreements combined in each other. the same frequency range.
  • the greater the mutual inductance between the 2 antenna circuits the more the 2 so-called "natural" agreements of the 2 antenna circuits increase. If we want these 2 frequency agreements to be close, we must reduce the mutual, inductance in, for example, decreasing strongly one of the antenna circuit surfaces relative to the other which induces a considerable loss in the transponder efficiency.
  • Means are provided for coupling COUPL12 by mutual inductance between neighboring turns S1 and S2.
  • Means are provided for coupling COUPLZZ by mutual inductance between neighboring turns S1 and SC3, SC4 of the impedance ZZ.
  • This coupling by mutual inductance is for example due to the arrangement of S1 close to S2 and the arrangement of S1 close to SC3, SC4.
  • S2, S1, SC3, SC4 we successively from the periphery to the center: S2, S1, SC3, SC4.
  • the antenna circuit has at least two mutually intrinsic intrinsic inductances coupled between them: between S1 and S2, between S1 and ZZ.
  • the column AE indicates the number of turns S1 between A and E.
  • the column AD indicates the number of turns S2 between A and D.
  • the column P1-P2 indicates the number N12 equal to at least one turn S of the antenna L between points P1 and P2.
  • the last column on the right indicates either the presence of the impedance ZZ formed by the turns SC3 and SC4, indicating in this case the number of ZZ turns in parentheses, ie the presence of an additional capacitor C30, called the first capacitor, formed by a capacitive dielectric component between its terminals.
  • the term "dielectric capacitive component” means any embodiment allowing the arrangement of a capacity. If necessary, this capacitive component may be formed by another circuit ZZ.
  • the capacitance ZZ is formed by turns SC3, SC4 between SC42 and SC31 (for example 4 turns), with SC31 forming C1XZ.
  • another capacity C30 formed by a capacitive component is provided between E and C1XC1.
  • the terminal C1XC1 is connected to a point PC1 of the antenna L, which is at a distance of P2 from at least one turn, for example a turn in this figure.
  • ZZ is between C1XZ and C1E
  • C30 is a capacitive component between E and C1XC1.
  • two capacitors C30 and ZZ are provided in series between the terminal C1E, E and the terminal C1X, P1 formed by the end SC42.
  • the capacitance ZZ is formed by the turns SC3, SC4 between SC42 and SC31 (for example 4 turns), with SC31 forming PC1.
  • another capacity C30 formed by a capacitive component is provided between E and PC1.
  • Terminal PC1 is connected to point 2, P2 of antenna L.
  • Terminal C1E, E is formed by the end of coil (s) S1, remote from terminal 2.
  • two capacitors C30 and ZZ are provided in series between the terminal C1E, E and the terminal C1X, P1 formed by the end SC42.
  • the capacitance ZZ is formed by the turns SC3, SC4 between SC42 and SC31 (for example 4 turns), with SC31 connected in series with the point PC1 by one or more turns S10 (for example two turns S10).
  • another capacity C30 formed by a capacitive component is provided between E and PC1.
  • Terminal PC1 is connected to point 2, P2 of antenna L.
  • Terminal C1E, E is formed by the end of coil (s) S1, remote from terminal 2.
  • the point PR1 is away from A by at least one turn and E by at least one turn (for example two turns between A and PR1 and two turns between PR1 and E).
  • the point PR2 is away from A by at least one turn and E by at least one turn (for example a turn between A and PR2 and three turns between PR2 and E).
  • PR2 is away from P2 by at least one turn.
  • the point PR1 is located at A.
  • the point PR2 is away from A by at least one turn and E by at least one turn (for example a turn between A and PR2 and three turns between PR2 and E).
  • the point PR1 is located at A.
  • the point PR2 is away from A by at least one turn and E by at least one turn (for example a turn between A and PR2 and four turns between PR2 and E).
  • the point PR1 is away from A by at least one turn and D by at least one turn (for example a turn between A and PR1 and two turns between PR1 and D).
  • the point PR2 is away from A by at least one turn and D by at least one turn (for example two turns between A and PR2 and a turn between PR2 and D).
  • a midpoint PM for setting a potential to a reference potential is provided on the antenna midway between the two end terminals D and E of the antenna.
  • the midpoint PM is distant from the other points 1, A, 2, P2, C1E, E, C1X, P1, D by at least one turn of the antenna. 'antenna.
  • the midpoint PM is distant from the other points 1, A, 2, P2, C1E, E, C1X, P1, D by at least half a turn of the antenna and is for example on the other side with respect to the side having these points 1, A, 2, P2, C1E, E, C1X, P1, D.
  • the number of turns between the points mentioned on the antenna (1, A, 2, P2, C1E, E, C1X, P1, D, as well as the cusps or points) can be whatever, for example by being greater than or equal to one.
  • These numbers of turns may be integers, for example as shown in the figures, or not integers such as for example figures 31 and 32 .
  • a reversing point PR3 at point 1 A is provided, that is to say an inversion of the winding direction of the turns of the antenna at the passage of 1 A, going from D to E.
  • figures 15 , 16 , 17 , 18 , 22, 23 , 24 , 27 , 28, 29 , 30 , 31 and 32 we go through the point 1, A going from D to E keeping the same winding direction of the turns of the antenna.
  • PR1 other than 1, A to figures 23 , 24 , 26, 27 .
  • the first access terminal is distinct from the second access terminal in that the first access terminal is separated from the second access terminal by one or more turns.
  • Only one first access terminal 1 and only one second access terminal 2 are for example provided.
  • a transponder TRANS as load Z is connected to the first terminal 1 and the second terminal 2, for example to the figure 35 .
  • a reader LECT as load Z is connected to the first terminal 1 and the second terminal 2, for example to the figure 36 .
  • a transponder TRANS as the first load Z1 and a reader LECT as the second load Z2 can be connected to the same first terminal 1 and the same second terminal 2, as shown for example in FIGS. figures 37 and 38 , the TRANS transponder and the reader LECT being electrically in parallel with the figure 38 .
  • the antenna may comprise, for the connection of several separate loads, a plurality of first distinct access terminals 1 and / or a plurality of second access terminals 2 distinct from each other.
  • First distinct access terminals 1 are separated from each other by minus one turn of the antenna.
  • Separate second terminals 2 are separated from each other by at least one turn of the antenna.
  • a transponder TRANS as the first load Z1 is connected between the first access terminal 1 and the second access terminal 2
  • a reader LECT as the second load Z2 is connected between another first terminal 11d. access and another second terminal 12 access.
  • a transponder TRANS as the first load Z1 is connected between the first access terminal 1 and the second access terminal 2
  • a reader LECT as the second load Z2 is connected between another second terminal 12d. access and the second access terminal 2 (successive access terminals).
  • a plurality of RFID applications, and / or RFID reader and / or RFID transponder may be connected between the first and second identical access terminals 1, 2 or between first and second access terminals 1, 2 such as the applications designated by APPL1, APPL3 to the figure 41 between first and second terminals 1, 2, access distinct 1, 2, 12, 13 successive.
  • the role of the first access terminal 1 and the role of the second access terminal 2 can be inverted.
  • the load Z connected to the access terminals 1, 2 has, for example, a prescribed tuning frequency, as is shown in FIG. figure 42 .
  • This tuning frequency is fixed.
  • This prescribed tuning frequency is for example in a high frequency band (HF), the high frequency band covering frequencies greater than or equal to 30 kHz and less than 80 MHz.
  • This tuning frequency is for example 13.56 MHz.
  • the tuning frequency may also be in an ultra high frequency (UHF) band, the ultra high frequency band covering frequencies greater than or equal to 80 MHz and less than or equal to 5800 MHz.
  • UHF ultra high frequency
  • the tuning frequency is 868 MHz or 915 MHz.
  • said at least one first access terminal 1 and said at least one second access terminal 2 are connected to at least one first load Z1 having a first prescribed tuning frequency and at least one second charge Z2 having a second prescribed tuning frequency different from the first prescribed tuning frequency.
  • a first load Z1 having the first tuning frequency prescribed in the high frequency band and a second load Z2 having the second tuning frequency prescribed in the ultra high frequency band are connected to terminals 1, 2 d. 'access.
  • the first load Z1 having the first tuning frequency prescribed in the high frequency band and a second load Z2 having the second tuning frequency prescribed in the ultra high frequency band are connected to the same first access terminal 1 and the same second terminal 2 access.
  • the first load Z1 having the first tuning frequency prescribed in the high frequency band is connected between the first access terminal 1 and the second access terminal 2
  • the second load Z2 having the second tuning frequency prescribed in the ultra-high frequency band is connected between another first access terminal 11 and another second access terminal 12.
  • the first load Z1 having the first tuning frequency prescribed in the high frequency band is connected between the first access terminal 1 and the second access terminal 2
  • the second load Z2 having the second tuning frequency prescribed in the ultra-high frequency band is connected between another second access terminal 12 and the second access terminal 2 (successive access terminals), the number of turns between the terminals being different between the two figures.
EP09805691A 2008-12-11 2009-12-09 Circuit d'antenne rfid Active EP2377200B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
PCT/FR2008/052281 WO2010066955A1 (fr) 2008-12-11 2008-12-11 Circuit d'antenne rfid
FR0953791A FR2939936B1 (fr) 2008-12-11 2009-06-08 Circuit d'antenne rfid
PCT/EP2009/066749 WO2010066799A2 (fr) 2008-12-11 2009-12-09 Circuit d'antenne rfid

Publications (2)

Publication Number Publication Date
EP2377200A2 EP2377200A2 (fr) 2011-10-19
EP2377200B1 true EP2377200B1 (fr) 2012-10-31

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Application Number Title Priority Date Filing Date
EP09805691A Active EP2377200B1 (fr) 2008-12-11 2009-12-09 Circuit d'antenne rfid

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US (1) US8749390B2 (ko)
EP (1) EP2377200B1 (ko)
JP (1) JP5592895B2 (ko)
KR (1) KR101634837B1 (ko)
CN (1) CN102282723B (ko)
BR (1) BRPI0922402A2 (ko)
CA (1) CA2746241C (ko)
FR (1) FR2939936B1 (ko)
IL (1) IL213449A (ko)
SG (1) SG172085A1 (ko)
TW (1) TWI524587B (ko)
WO (2) WO2010066955A1 (ko)

Families Citing this family (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2963140B1 (fr) * 2010-07-20 2012-08-31 Oberthur Technologies Dispositif a microcircuit de type sans contact
EP2431926B1 (fr) * 2010-09-21 2018-05-23 Inside Secure Carte nfc pour dispositif portatif
FR2966267A1 (fr) 2010-10-19 2012-04-20 Inside Contactless Appareil comportant un dispositif de communication en champ proche par couplage inductif
KR101273184B1 (ko) 2011-08-02 2013-06-17 엘지이노텍 주식회사 안테나 및 이를 위한 이동 단말기
JP5709690B2 (ja) * 2011-08-17 2015-04-30 タイコエレクトロニクスジャパン合同会社 アンテナ
US9590761B2 (en) * 2011-09-23 2017-03-07 Commscope Technologies Llc Detective passive RF components using radio frequency identification tags
CN102544709B (zh) * 2011-12-21 2014-07-30 上海坤锐电子科技有限公司 一种移动支付转接桥的通信距离均衡的转接桥天线
FR2985863B1 (fr) 2012-01-18 2014-02-14 Inside Secure Circuit d'antenne pour dispositif nfc
FR2991511B1 (fr) * 2012-06-01 2014-07-04 Eray Innovation Circuit d'antenne rfid et/ou nfc
CN103515698A (zh) * 2012-06-28 2014-01-15 比亚迪股份有限公司 一种近场通讯天线及电子设备
US9934895B2 (en) * 2012-06-29 2018-04-03 Intel Corporation Spiral near field communication (NFC) coil for consistent coupling with different tags and devices
KR20140046754A (ko) * 2012-10-11 2014-04-21 삼성메디슨 주식회사 초음파 프로브의 움직임에 기초하여 초음파 프로브를 자동으로 활성화하는 초음파 시스템 및 방법
KR102144360B1 (ko) 2012-12-05 2020-08-13 삼성전자주식회사 스마트 근거리무선통신 안테나 매칭 네트워크 시스템 및 그것을 포함한 유저 장치
US9270343B2 (en) * 2012-12-20 2016-02-23 Nxp B.V. Wireless charging recognizing receiver movement over charging pad with NFC antenna array
TW201426220A (zh) * 2012-12-21 2014-07-01 Hon Hai Prec Ind Co Ltd 手錶及其nfc天線
TW201426221A (zh) * 2012-12-21 2014-07-01 Hon Hai Prec Ind Co Ltd 具有nfc天線的手錶
US9293825B2 (en) 2013-03-15 2016-03-22 Verifone, Inc. Multi-loop antenna system for contactless applications
US9819085B2 (en) * 2013-05-13 2017-11-14 Amotech Co., Ltd. NFC antenna module and portable terminal comprising same
JP6146272B2 (ja) * 2013-11-22 2017-06-14 トヨタ自動車株式会社 受電装置および送電装置
KR102184679B1 (ko) 2013-12-20 2020-11-30 삼성전자주식회사 근거리무선통신 안테나 매칭 네트워크 시스템 및 그것을 포함한 유저 장치
US20150188227A1 (en) * 2013-12-31 2015-07-02 Identive Group, Inc. Antenna for near field communication, antenna arrangement, transponder with antenna, flat panel and methods of manufacturing
KR101664439B1 (ko) * 2014-06-13 2016-10-10 주식회사 아모텍 Ｎｆｃ 안테나 모듈 및 이를 구비하는 휴대 단말
US9858521B2 (en) * 2014-10-14 2018-01-02 Confidex Oy RFID transponder and RFID transponder web
PL3010084T3 (pl) * 2014-10-17 2020-01-31 Synoste Oy Urządzenie z anteną odbiorczą i powiązany system przenoszenia mocy
FR3032050B1 (fr) * 2015-01-27 2018-02-16 Starchip Puce microelectronique avec multiples plots
US10333200B2 (en) 2015-02-17 2019-06-25 Samsung Electronics Co., Ltd. Portable device and near field communication chip
CN107210917A (zh) * 2015-02-20 2017-09-26 惠普发展公司有限责任合伙企业 用户认证设备
WO2016186169A1 (ja) * 2015-05-21 2016-11-24 シャープ株式会社 表示デバイス
KR102511755B1 (ko) * 2015-06-12 2023-03-21 삼성전자주식회사 근거리 무선 통신 안테나 및 이를 포함하는 근거리 무선 통신 장치
CN106329096B (zh) * 2015-06-30 2020-03-31 比亚迪股份有限公司 Nfc天线
WO2017024283A1 (en) * 2015-08-06 2017-02-09 Thin Film Electronics Asa Wireless communication device with integrated ferrite shield and antenna, and methods of manufacturing the same
US10692643B2 (en) * 2015-10-27 2020-06-23 Cochlear Limited Inductance coil path
US10649572B2 (en) 2015-11-03 2020-05-12 Microsoft Technology Licensing, Llc Multi-modal sensing surface
US10955977B2 (en) 2015-11-03 2021-03-23 Microsoft Technology Licensing, Llc Extender object for multi-modal sensing
US10338753B2 (en) 2015-11-03 2019-07-02 Microsoft Technology Licensing, Llc Flexible multi-layer sensing surface
CN107368616B (zh) * 2016-05-11 2021-03-09 中芯国际集成电路制造(上海)有限公司 实现射频识别的仿真模型电路及其仿真方法
TWI625896B (zh) * 2016-05-13 2018-06-01 Chen Yi Feng Broadband multi-frequency dual loop antenna
US10055619B2 (en) * 2016-06-17 2018-08-21 Intermec, Inc. Systems and methods for compensation of interference in radiofrequency identification (RFID) devices
CN106252842A (zh) * 2016-07-29 2016-12-21 中国科学院微电子研究所 一种增益天线及通信系统
CN106299667A (zh) * 2016-09-26 2017-01-04 上海德门电子科技有限公司 可调自谐振频率的nfc天线装置及电子设备和方法
WO2018056101A1 (ja) * 2016-09-26 2018-03-29 株式会社村田製作所 アンテナ装置および電子機器
KR102452409B1 (ko) * 2016-10-19 2022-10-11 삼성전자주식회사 방사 부재를 포함하는 전자 장치
US10152837B1 (en) 2016-12-29 2018-12-11 George Mallard System and method for integrating credential readers
CN108701890A (zh) * 2017-02-27 2018-10-23 华为技术有限公司 一种nfc天线及终端设备
BR102018007799A2 (pt) * 2018-04-18 2019-11-05 Centro Nac De Tecnologia Eletronica Avancada S A dispositivo eletrônico de identificação por radiofrequência do tipo módulo
GB2576319B (en) * 2018-08-13 2021-01-06 Pragmatic Printing Ltd Capacitively coupled RFID communication
WO2020157534A1 (en) * 2019-01-31 2020-08-06 Linxens Holding Chip card, antenna support for a chip card and method for manufacturing an antenna support for a chip card
SE545998C2 (en) * 2019-09-19 2024-04-09 Husqvarna Ab Wireless identification tags and corresponding readers

Family Cites Families (55)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3823403A (en) 1971-06-09 1974-07-09 Univ Ohio State Res Found Multiturn loop antenna
IL100451A (en) 1990-12-28 1994-08-26 Bashan Oded Contactless data communication system
US5541399A (en) 1994-09-30 1996-07-30 Palomar Technologies Corporation RF transponder with resonant crossover antenna coil
US5955723A (en) 1995-05-03 1999-09-21 Siemens Aktiengesellschaft Contactless chip card
US5708419A (en) 1996-07-22 1998-01-13 Checkpoint Systems, Inc. Method of wire bonding an integrated circuit to an ultraflexible substrate
PT919050E (pt) 1996-08-06 2000-08-31 Meto International Gmbh Elemento de seguranca para a proteccao electronica de artigos
DE19753619A1 (de) 1997-10-29 1999-05-06 Meto International Gmbh Identifizierungselement und Verfahren zu seiner Herstellung
IL119943A (en) 1996-12-31 2000-11-21 On Track Innovations Ltd Contact/contactless data transaction card
JP3823406B2 (ja) * 1997-01-07 2006-09-20 松下電器産業株式会社 積層フィルタとこれを用いた携帯電話機
DE19719434A1 (de) 1997-05-12 1998-11-19 Meto International Gmbh Universelles Sicherungselement und Verfahren zu seiner Herstellung
JPH11346114A (ja) * 1997-06-11 1999-12-14 Matsushita Electric Ind Co Ltd アンテナ装置
WO1999026195A1 (fr) 1997-11-14 1999-05-27 Toppan Printing Co., Ltd. Module ci composite et carte ci composite
IL122841A0 (en) 1997-12-31 1998-08-16 On Track Innovations Ltd Smart card for effecting data transfer using multiple protocols
FR2777141B1 (fr) 1998-04-06 2000-06-09 Gemplus Card Int Transpondeur
US6154137A (en) 1998-06-08 2000-11-28 3M Innovative Properties Company Identification tag with enhanced security
JP2000067194A (ja) * 1998-08-25 2000-03-03 Sony Corp 記憶装置
DE19905886A1 (de) 1999-02-11 2000-08-17 Meto International Gmbh Identifizierungselement und Verfahren zur Herstellung eines Identifizierungselements
JP3632894B2 (ja) * 1999-03-15 2005-03-23 ソニー株式会社 アンテナ装置及びカード状記憶媒体
DE19951561A1 (de) 1999-10-27 2001-05-03 Meto International Gmbh Sicherungselement für die elektronischen Artikelsicherung
JP4186149B2 (ja) * 1999-12-06 2008-11-26 株式会社エフ・イー・シー Ｉｃカード用の補助アンテナ
US6522308B1 (en) * 2000-01-03 2003-02-18 Ask S.A. Variable capacitance coupling antenna
FI113809B (fi) 2000-11-01 2004-06-15 Rafsec Oy Menetelmä älytarran valmistamiseksi sekä älytarra
NO313976B1 (no) 2000-11-06 2003-01-06 Helge Idar Karlsen Anordning ved antenne
JP2002183689A (ja) * 2000-12-11 2002-06-28 Dainippon Printing Co Ltd 非接触データキャリア装置とその製造方法
US6407669B1 (en) * 2001-02-02 2002-06-18 3M Innovative Properties Company RFID tag device and method of manufacturing
FR2823888B1 (fr) 2001-04-24 2005-02-18 Gemplus Card Int Procede de fabrication d'une carte sans contact ou hybride et carte obtenue
US6693541B2 (en) * 2001-07-19 2004-02-17 3M Innovative Properties Co RFID tag with bridge circuit assembly and methods of use
JP4196554B2 (ja) * 2001-09-28 2008-12-17 三菱マテリアル株式会社 タグ用アンテナコイル及びそれを用いたｒｆｉｄ用タグ
US7119693B1 (en) 2002-03-13 2006-10-10 Celis Semiconductor Corp. Integrated circuit with enhanced coupling
FR2840431B1 (fr) 2002-05-29 2004-09-03 Francois Trantoul Procede et dispositif de protection d'inscriptions a lire
JP4063040B2 (ja) * 2002-10-22 2008-03-19 ソニー株式会社 Ｉｃモジュール並びにｉｃモジュール用アンテナ
JP2004227046A (ja) 2003-01-20 2004-08-12 Hitachi Ltd 携帯情報機器
US6970141B2 (en) * 2003-07-02 2005-11-29 Sensormatic Electronics Corporation Phase compensated field-cancelling nested loop antenna
JP4244169B2 (ja) * 2003-08-04 2009-03-25 日本発條株式会社 非接触情報媒体およびこれを用いた通信システム
US20060044769A1 (en) 2004-09-01 2006-03-02 Forster Ian J RFID device with magnetic coupling
US7812729B2 (en) * 2004-11-15 2010-10-12 Sensormatic Electronics, LLC Combination EAS and RFID label or tag with controllable read range using a hybrid RFID antenna
WO2006078709A2 (en) 2005-01-19 2006-07-27 Tosoh Smd Etna, Llc Automated sputtering target production
FR2886466B1 (fr) 2005-05-25 2012-06-15 Oberthur Card Syst Sa Entite electronique a antenne magnetique
FR2887665B1 (fr) 2005-06-27 2007-10-12 Oberthur Card Syst Sa Entite electronique a antenne magnetique
FR2893162B1 (fr) 2005-11-08 2008-02-15 Oberthur Card Syst Sa Carte a microcircuit comportant un condensateur avantageusement interdigital
JP2007166379A (ja) * 2005-12-15 2007-06-28 Fujitsu Ltd ループアンテナ及びこのループアンテナを備えた電子機器
IL175824A0 (en) 2006-05-22 2007-09-20 On Track Innovations Ltd Data transaction card having a tunable coil antenna with reduced footprint
FR2904453B1 (fr) 2006-07-25 2009-01-16 Oberthur Card Syst Sa Antenne electronique a microcircuit.
KR100822240B1 (ko) * 2006-08-07 2008-04-17 전자부품연구원 Ｒｆｉｄ 태그
FR2910152B1 (fr) 2006-12-19 2009-04-03 Oberthur Card Syst Sa Antenne avec pont sans via pour entite electronique portable
JP4452782B2 (ja) 2006-12-20 2010-04-21 仁川大學校産學協力團 Ｒｆｉｄリーダ用多重ループアンテナ、これを有するｒｆｉｄリーダ、及びこれを有するｒｆｉｄシステム
US7675365B2 (en) 2007-01-10 2010-03-09 Samsung Electro-Mechanics Systems and methods for power amplifiers with voltage boosting multi-primary transformers
EP1970840A1 (en) 2007-03-15 2008-09-17 Magnex Corporation RFID tag with improved range
GB0705635D0 (en) 2007-03-23 2007-05-02 Innovision Res & Tech Plc Near field RF communicators
FR2914458B1 (fr) 2007-03-28 2009-06-26 Inside Contactless Sa Procede de couplage d'un circuit integre sans contact a un composant nfc.
FR2915011B1 (fr) 2007-03-29 2009-06-05 Smart Packaging Solutions Sps Carte a puce a double interface de communication
MX2009011053A (es) * 2007-04-18 2009-10-29 3M Innovative Properties Co Funcionalidad de identificacion de radiofrecuencia acoplada a señalizacion electricamente conductora.
JP5020161B2 (ja) * 2008-05-16 2012-09-05 三菱電機株式会社 無線通信装置
US20100039234A1 (en) 2008-08-15 2010-02-18 Ivi Smart Technologies, Inc. Rf power conversion circuits & methods, both for use in mobile devices
US8201748B2 (en) * 2009-04-27 2012-06-19 Impinj, Inc. Packaged RFID IC with integrated antenna

Also Published As

Publication number Publication date
JP2012511850A (ja) 2012-05-24
KR20110099722A (ko) 2011-09-08
WO2010066799A3 (fr) 2010-08-19
CN102282723A (zh) 2011-12-14
EP2377200A2 (fr) 2011-10-19
TWI524587B (zh) 2016-03-01
US8749390B2 (en) 2014-06-10
BRPI0922402A2 (pt) 2017-07-11
WO2010066955A1 (fr) 2010-06-17
US20110266883A1 (en) 2011-11-03
KR101634837B1 (ko) 2016-06-29
FR2939936B1 (fr) 2018-11-23
FR2939936A1 (fr) 2010-06-18
JP5592895B2 (ja) 2014-09-17
IL213449A0 (en) 2011-07-31
CN102282723B (zh) 2014-09-24
CA2746241A1 (fr) 2010-06-17
TW201101579A (en) 2011-01-01
CA2746241C (fr) 2018-01-23
WO2010066799A2 (fr) 2010-06-17
IL213449A (en) 2015-08-31
SG172085A1 (en) 2011-07-28

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