WO2018110201A1 - Support discriminant - Google Patents

Support discriminant Download PDF

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Publication number
WO2018110201A1
WO2018110201A1 PCT/JP2017/041436 JP2017041436W WO2018110201A1 WO 2018110201 A1 WO2018110201 A1 WO 2018110201A1 JP 2017041436 W JP2017041436 W JP 2017041436W WO 2018110201 A1 WO2018110201 A1 WO 2018110201A1
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WO
WIPO (PCT)
Prior art keywords
antenna
resonance peak
antennas
tag
ground pattern
Prior art date
Application number
PCT/JP2017/041436
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English (en)
Japanese (ja)
Inventor
裕 出口
岳央 道坂
Original Assignee
トッパン・フォームズ株式会社
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Filing date
Publication date
Application filed by トッパン・フォームズ株式会社 filed Critical トッパン・フォームズ株式会社
Publication of WO2018110201A1 publication Critical patent/WO2018110201A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P7/00—Resonators of the waveguide type
    • H01P7/08—Strip line resonators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
    • H01Q15/14—Reflecting surfaces; Equivalent structures

Definitions

  • the present invention relates to an identification body capable of recognizing identification information using an antenna.
  • the identification body using such RFID technology is not limited to the one on which the IC chip is mounted as described above, and has a plurality of antennas having different resonance peak frequencies, and a plurality of antennas without using the IC chip.
  • a device that can recognize an ID by a combination of antennas is also considered.
  • the shape of the dielectric element and the capacitor element constituting the plurality of antennas may be different, or the shape and direction of the plurality of antennas may be different to change the resonance peak frequency for each of the plurality of antennas.
  • Patent Documents 1 and 2 disclose techniques that allow IDs to be expressed in combination.
  • an identification body using the RFID technology as described above is often used in a state where it is in contact with a dielectric, for example, affixed to a product managed using the identification body.
  • a dielectric for example, affixed to a product managed using the identification body.
  • the frequency characteristics of the discriminator change due to the influence of the dielectric, and the resonance peak becomes gradual and cannot be detected, or the frequency of the resonance peak is greatly shifted. There is a risk of being unable to recognize.
  • the present invention has been made in view of the problems of the conventional techniques as described above, and the identification information can be obtained without reducing the convenience even when used in contact with a dielectric. It is an object to provide an identifier that can be recognized correctly.
  • the present invention provides: A conductive layer; An antenna that is provided opposite to each of the front and back surfaces of the conductive layer via an insulating layer, and that exhibits a resonance peak by facing the conductive layer;
  • the conductive layer has a shape that covers the antenna in a plan view.
  • a resonance peak appears when the antenna faces the conductive layer, and the identification body is used in contact with a dielectric material such as affixed to a product.
  • the conductive layer is interposed between the antenna and the dielectric, it is avoided that the influence of the dielectric affects the frequency characteristics of the discriminator, thereby preventing the frequency characteristics of the discriminator from changing. Therefore, the identification information is recognized correctly. In that case, since the antenna is provided opposite to each of the front and back sides of the conductive layer via the insulating layer, the identification information can be recognized from any surface of the identification body.
  • the antenna when the Q value in a state where it does not face the conductive layer is 30 or less, a sharp resonance peak with a Q value of 30 or more can be expressed by facing the conductive layer.
  • the front and back of the identifier are determined. Or two pieces of identification information can be represented depending on the method of use.
  • the resonance peak frequency that appears when the antenna faces the conductive layer is different for each of the plurality of regions,
  • Each of the plurality of regions is one of a region where the antenna is provided and a region where the antenna is not provided, and in the region where the antenna is provided, by facing the conductive layer of the antenna In the region where the expressed resonance peak is detected and the antenna is not provided, the resonance peak is not detected and is not detected, and identification information including a combination of these binary information can be expressed.
  • the antenna when the antenna is opposed to the conductive layer, a resonance peak appears, and when the identifier is used in contact with a dielectric material such as affixed to a product or the like, the antenna and the dielectric material are used.
  • the conductive layer By interposing the conductive layer between them, the frequency characteristics of the discriminator are prevented from changing due to the influence of the dielectric, and the discriminating information can be correctly recognized by detecting the resonance peak.
  • the identification information can be recognized from any surface of the identification body and is in contact with the dielectric Even if it is a case where it is used, identification information can be correctly recognized without deteriorating convenience.
  • the front and back sides of the identifier are determined. Or two pieces of identification information can be represented depending on the method of use.
  • the frequency of the resonance peak that appears when the antenna faces the conductive layer is different for each of the plurality of regions. Since each of the regions is either one of the region where the antenna is provided and the region where the antenna is not provided, binary information based on the region where the resonance peak is detected and the region where the resonance peak is not detected It is possible to express identification information consisting of a combination of
  • FIG. 1B is a cross-sectional view taken along the line A-A ′ shown in FIG. It is a figure which shows the structure of the back surface of an example of the basic form of the identification body of this invention. It is a figure which shows the frequency characteristic of the state in which the ID tag by which an antenna is formed only in one surface of one base base material is not in contact with a dielectric material. It is a figure which shows the frequency characteristic of the state in which the ID tag by which an antenna is formed only in one side of one base base material is in contact with the dielectric.
  • FIG. 2 is a diagram showing frequency characteristics when the ID tag shown in FIGS. 1a to 1c is not in contact with a dielectric.
  • FIG. 2 is a diagram showing frequency characteristics when an ID is read from one side of the ID tag shown in FIGS. 1a to 1c.
  • FIG. 2 is a diagram showing a surface configuration of an application example of the ID tag shown in FIGS. 1a to 1c.
  • FIG. 6B is a cross-sectional view taken along the line A-A ′ shown in FIG. 6A.
  • FIG. 2 is a diagram showing a configuration of a back surface of an application example of the ID tag shown in FIGS. 1a to 1c.
  • FIG. 6 is a diagram showing an example of an ID recognition system that recognizes an ID assigned to an ID tag shown in FIGS. 6a to 6c.
  • FIG. 8B is a cross-sectional view taken along the line A-A ′ shown in FIG. 8a. It is a figure which shows the structure of the back surface of the other example of the basic form of the identification body of this invention.
  • FIG. 9 is a diagram for explaining frequency characteristics of the ID tag shown in FIGS. 8a to 8c.
  • FIG. 2 is a surface view showing a practical example of the ID tag shown in FIGS. 1a to 1c.
  • FIG. 10b is a cross-sectional view taken along the line A-A 'shown in FIG. 10a.
  • FIG. 2 is a surface view showing a modified practical example of the ID tag shown in FIGS. 1a to 1c.
  • FIG. 11B is a cross-sectional view taken along the line A-A ′ shown in FIG. 11 a.
  • FIG. 1a is a diagram showing a surface configuration of an example of a basic form of an identifier of the present invention.
  • FIG. 1B is a cross-sectional view taken along line A-A ′ shown in FIG.
  • FIG. 1c is a diagram showing the configuration of the back surface of an example of the basic form of the identifier of the present invention.
  • the identification body in this embodiment is formed by laminating a base substrate 10a provided with an antenna region 31 and a base substrate 10b provided with an antenna region 32 via a ground pattern 40.
  • Each of the base substrates 10a and 10b serves as an insulating layer in the present invention, and is made of an insulating material having the same shape and a thickness of about 200 to 300 ⁇ m.
  • a resin film or the like can be considered as the insulating material, but a material having a small dielectric loss tangent is preferable.
  • the insulating layer may be configured by applying an insulating resin film without using the base substrates 10a and 10b.
  • the antenna regions 31 and 32 are provided on the surface opposite to the surface of the base base material 10a or 10b on which the ground pattern 40 is laminated, and the antennas 21 and 22 made of a conductive material are formed.
  • the antennas 21 and 22 are provided so as to face each other on the front and back of the ground pattern 40 via the base substrates 10a and 10b.
  • Each of the antennas 21 and 22 has a rectangular outer shape, and has a shape in which a slit enters the longitudinal direction from one of its short sides.
  • the antenna regions 31 and 22 have the same shape and the same direction. 32. Then, the antennas 21 and 22 are opposed to the ground pattern 40, thereby expressing a resonance peak at a frequency corresponding to the shape of the antennas 21 and 22.
  • the ground pattern 40 serves as a conductive layer in the present invention, and is formed on the entire surface of at least one of the laminated surfaces of the base substrate 10a and the base substrate 10b between the base substrates 10a and 10b. Thus, the antennas 21 and 22 are covered in a plan view.
  • the antennas 21 and 22 are opposed to the ground pattern 40 so that a resonance peak appears at a frequency corresponding to the shape of the antennas 21 and 22.
  • the ID assigned to the ID tag 1 can be recognized depending on whether a resonance peak is detected in the vicinity of the frequency corresponding to the shape of the antennas 21 and 22. Specifically, if the antennas 21 and 22 are formed in the antenna areas 31 and 32, respectively, a resonance peak is detected. Therefore, the ID at that time is set to “1”, and any of the antenna areas 31 and 32 is set. Since the resonance peak is not detected if the antennas 21 and 22 are not formed, the ID can be recognized by setting the ID at that time to “0”. A detailed description of the fact that the antennas 21 and 22 exhibit a resonance peak by facing the ground pattern 40 will be described later.
  • FIG. 2a is a diagram showing frequency characteristics in a state where an ID tag in which an antenna is formed only on one surface of one base substrate is not in contact with a dielectric.
  • FIG. 2B is a diagram illustrating frequency characteristics in a state where an ID tag in which an antenna is formed on only one surface of one base substrate is in contact with a dielectric.
  • an electromagnetic wave is irradiated from the surface side where the antenna is formed in a state where it is not in contact with a dielectric, and the reflected wave is received.
  • the frequency characteristic of the reflected wave is as shown by the solid line in FIG. 2a
  • the reflected wave is received by irradiating the electromagnetic wave from the side opposite to the surface where the antenna is formed.
  • the frequency characteristic of the reflected wave is as shown by the broken line in FIG. 2a, and the frequency characteristic hardly changes, and the ID due to the resonance peak of the antenna can be correctly recognized from any surface of the ID tag.
  • the frequency characteristics of the reflected wave when not in contact with the dielectric are as shown by the solid line in FIG. 2b.
  • the frequency characteristic of the reflected wave becomes as shown by the broken line in FIG. It will change greatly under the influence, and the ID due to the resonance peak of the antenna cannot be recognized correctly.
  • an antenna similar to that shown in FIGS. 1a to 1c is formed on only one surface of one base substrate, and the same as that shown in FIGS. 1a to 1c is formed on the entire other surface.
  • frequency characteristics of an ID tag formed with a ground pattern will be described.
  • FIG. 3a shows an ID tag in which an antenna is formed only on one surface of one base substrate and a ground pattern is formed on the other surface, and ID is read from the surface where the antenna is formed. It is a figure which shows the frequency characteristic in the case of.
  • FIG. 3b shows an ID tag in which an antenna is formed only on one surface of a single base substrate and a ground pattern is formed on the entire other surface, and ID reading is performed from the surface side where the ground pattern is formed. It is a figure which shows the frequency characteristic at the time of performing.
  • an ID tag in which an antenna is formed only on one surface of one base substrate and a ground pattern is formed on the entire other surface, the surface on which the antenna is formed without being in contact with a dielectric.
  • the electromagnetic wave is irradiated from the side and the reflected wave is received, and the frequency characteristic of the reflected wave is as shown by the solid line in FIG. 3a, the antenna is in contact with a dielectric such as a human hand.
  • the frequency characteristic of the reflected wave is as shown by the broken line in FIG. It is possible to correctly recognize the ID due to the resonance peak of the antenna regardless of whether it is in contact with the antenna.
  • an ID tag in which an antenna is formed only on one surface of a single base substrate and a ground pattern is formed on the entire surface of the other surface, electromagnetic waves are irradiated from the surface on which the antenna is formed.
  • the reflected wave is received, even if the frequency characteristic of the reflected wave is as indicated by the solid line in FIG. 3b, if the reflected wave is received by irradiating the electromagnetic wave from the surface side on which the ground pattern is formed, Is cut off by the ground pattern, and the frequency characteristic of the reflected wave becomes as shown by the broken line in FIG. 3b, and the resonance peak does not exist in the frequency characteristic, and the ID due to the resonance peak of the antenna cannot be recognized.
  • FIG. 4a is a diagram showing frequency characteristics in a state where the ID tag 1 shown in FIGS. 1a to 1c is not in contact with a dielectric.
  • FIG. 4b is a diagram showing frequency characteristics when the ID is read from one side of the ID tag 1 shown in FIGS. 1a to 1c.
  • the frequency characteristic of the reflected wave is obtained. Is as shown by a solid line in FIG. 4a, and has a resonance peak in a region surrounded by a dotted line in the figure.
  • the frequency characteristic is as shown by a broken line in FIG. 4a, and the frequency characteristic is hardly changed, and similarly has a resonance peak in a region surrounded by a dotted line in the figure.
  • the reflected wave may be received by irradiating the electromagnetic wave from the surface side on which the antenna 21 is formed without being in contact with the dielectric.
  • the electromagnetic wave is irradiated from the surface side on which the antenna 22 is formed and the reflected wave is received, the frequency characteristics hardly change, and a resonance peak appears at the same frequency.
  • the antennas 21 and 22 have the same shape and are formed on the base substrates 10a and 10b in the same direction, respectively, and when electromagnetic waves are irradiated from one surface, This is because the electromagnetic wave is blocked by the ground pattern 40 and the reflected wave is received without being influenced by the antenna on the other surface.
  • the ID tag 1 shown in FIGS. 1a to 1c when the reflected wave is received by irradiating the electromagnetic wave from the surface side where the antenna 21 is formed in a state where the antenna is not in contact with the dielectric,
  • the frequency characteristic is as shown by the solid line in FIG. 4b
  • the reflected wave was received by irradiating the electromagnetic wave from the surface side on which the antenna 21 was formed in contact with a dielectric such as a human hand.
  • the frequency characteristic of the reflected wave is as shown by the broken line in FIG. 4b, and the frequency characteristic is hardly changed, and has a resonance peak in the region surrounded by the dotted line in the figure, and is in contact with the dielectric. It is possible to recognize the ID due to the resonance peak of the antenna regardless of whether or not it is present. This is the same even when an electromagnetic wave is irradiated from the surface side where the antenna 22 is formed and the reflected wave is received.
  • the electromagnetic wave is still in contact with the dielectric.
  • the frequency characteristics hardly change and a resonance peak appears at the same frequency.
  • a resonance peak appears at a frequency corresponding to the shape of the antennas 21 and 22, and the dielectric 21 is in contact with the dielectric. This is because the influence of the dielectric is blocked by the ground pattern 40 even in this case.
  • the antennas 21 and 22 are provided to face the front and back of the ground pattern 40 via the base materials 10a and 10b, respectively. Therefore, even when an electromagnetic wave is irradiated from the surface side on which the antenna 21 is formed and the reflected wave is received, the reflected wave is received by irradiating the electromagnetic wave from the surface side on which the antenna 22 is formed.
  • the frequency characteristics hardly change, and a resonance peak appears at the same frequency, and when the reflected wave is received by irradiating an electromagnetic wave without being in contact with the dielectric, When the reflected wave is received by irradiating an electromagnetic wave in contact with the dielectric, the frequency characteristics hardly change and a resonance peak appears at the same frequency. Even if the resonance peaks of the antennas 21 and 22 are detected correctly, and the identification information based on the resonance peaks is correctly used even when the ID tag 1 is used in contact with the dielectric, the convenience is not lowered. Can be recognized.
  • the antennas 21 and 22 exhibit a resonance peak by facing the ground pattern 40.
  • FIG. 5a is a diagram showing characteristics of an antenna in which a resonance peak does not appear when facing a ground pattern.
  • FIG. 5B is a diagram illustrating the characteristics of an antenna in which a resonance peak appears by facing the ground pattern.
  • the Q value is the frequency at the resonance peak at ⁇ 0 , the frequency at which the vibration energy is half the resonance peak at the lower frequency side than the resonance peak is ⁇ 1, and at the higher frequency side from the resonance peak.
  • the frequency at which the vibration energy is half the resonance peak is ⁇ 2
  • the antennas 21 and 22 shown in FIGS. 1a to 1c that is, the Q value in a state where the antennas 21 and 22 do not face the ground pattern 40 are 30 or less, face the ground pattern 40.
  • a sharp resonance peak having a Q value of 30 or more appears.
  • FIG. 6a is a diagram showing a surface configuration of an application example of the ID tag 1 shown in FIGS. 1a to 1c.
  • 6b is a cross-sectional view taken along the line A-A 'shown in FIG. 6a.
  • FIG. 6c is a diagram showing the configuration of the back surface of the application example of the ID tag 1 shown in FIGS. 1a to 1c.
  • a base substrate 110a provided with five antenna regions 131a to 131e and a base substrate 110b provided with five antenna regions 132a to 132e are grounded.
  • the ID tag 101 is configured by being stacked via a pattern 140.
  • Each of the base substrates 110a and 110b is composed of the same material as the base substrates 10a and 10b shown in FIGS. 1a to 1c, for example.
  • the antenna regions 131a to 131e and the antenna regions 132a to 132e are provided on the surfaces of the base substrates 110a and 110b opposite to the laminated surface with the ground pattern 140 so as to face each other.
  • the antenna areas 131a to 131e and 132a to 132e are assigned different frequencies.
  • a frequency of 7.0 GHz is assigned to the antenna areas 131a and 132a
  • a frequency of 8.0 GHz is assigned to the antenna areas 131b and 132b
  • the antenna areas 131c and 132c are assigned to the antenna areas 131c and 132c.
  • a frequency of 9.0 GHz is assigned
  • a frequency of 10.0 GHz is assigned to the antenna regions 131d and 132d
  • a frequency of 11.0 GHz is assigned to the antenna regions 131e and 132e.
  • the ground pattern 140 is formed on the entire surface of at least one of the laminated surfaces of the base substrate 110a and the base substrate 110b between the base substrates 110a and 110b.
  • the antenna areas 131a and 132a are formed with antennas 121a and 122a, respectively, which are opposed to the ground pattern 140 and exhibit resonance peaks in the vicinity of 7.0 GHz assigned to the antenna areas 131a and 132a.
  • the antenna regions 131b and 132b are formed with antennas 121b and 122b, respectively, which are opposed to the ground pattern 140 and exhibit resonance peaks in the vicinity of 8.0 GHz allocated to the antenna regions 131b and 132b.
  • the antenna regions 131c and 132c are formed with antennas 121c and 122c, respectively, which are opposed to the ground pattern 140 and exhibit a resonance peak in the vicinity of 9.0 GHz allocated to the antenna regions 131c and 132c.
  • Antennas are not formed in the antenna regions 131d and 132d.
  • the antenna regions 131e and 132e are formed with antennas 121e and 122e, respectively, which are opposed to the ground pattern 140 and exhibit a resonance peak in the vicinity of 11.0 GHz assigned to the antenna regions 131e and 132e.
  • the antennas formed in these antenna regions 131a to 131e and 132a to 132e have a rectangular outer shape similar to that shown in FIGS. 1a to 1c, and a slit enters the longitudinal direction from one of the short sides. However, since the lengths in the longitudinal direction are different, resonance peaks appear at different frequencies by facing the ground pattern.
  • the antennas formed in the antenna regions 131a, 131b, 131d, 131e, 132a, 132b, 132d, and 132e have the same longitudinal direction.
  • the antennas formed in the antenna regions 131c and 132c have a longitudinal direction orthogonal to them and serve as a reference antenna.
  • the antennas formed in the antenna regions 131a, 131b, 131d, 131e, 132a, 132b, 132d, and 132e and the antennas formed in the antenna regions 131c and 132c are polarized by having their longitudinal directions orthogonal to each other. The directions are different from each other.
  • FIG. 7 is a diagram showing an example of an ID recognition system that recognizes the ID assigned to the ID tag 101 shown in FIGS. 6a to 6c.
  • the ID recognition system in this example includes the ID tag 101 shown in FIGS. 6a to 6c and a reader 50 that recognizes the ID assigned to the ID tag 101.
  • the reader 50 transmits The antenna 51a, the reception antenna 51b, the transmission unit 52, the reception unit 53, the processing unit 54, and the control unit 55 are included.
  • the transmission unit 52 generates electromagnetic waves including frequencies assigned to the antenna regions 131a to 131e and 132a to 132e, and irradiates them through the transmission antenna 51a.
  • the receiving unit 53 receives the reflected wave from the ID tag 101 with respect to the electromagnetic wave irradiated from the transmitting unit 52 via the transmitting antenna 51a via the receiving antenna 51b, and detects the level of the received power of the reflected wave.
  • the processing unit 54 detects the resonance peak in the ID tag 101 based on the level of received power detected by the receiving unit 53, and detects the resonance peak among the frequencies assigned to the antenna regions 131a to 131e and 132a to 132e.
  • the individual ID for the generated frequency is set to “1”
  • the individual ID for the frequency for which the resonance peak is not detected is set to “0”
  • these “1” and “0” are arranged in the order of the frequencies, thereby obtaining the ID.
  • the ID assigned to the tag 101 is recognized.
  • the antennas 121c and 122c formed in the antenna regions 131c and 132c are polarized with respect to the antennas formed in the antenna regions 131a, 131b, 131d, 131e, 132a, 132b, 132d, and 132e, as described above. Since the directions are different, the antennas 121c and 122c are used as reference antennas.
  • the control unit 55 controls the irradiation of electromagnetic waves in the transmission unit 52 and each process in the processing unit 54.
  • the transmitting unit 52 uses 7.0 GHz to 11 assigned to the antenna regions 131a to 131e and 132a to 132e.
  • the electromagnetic wave of the said frequency band is irradiated to the ID tag 101 via the transmission antenna 51a, sweeping the frequency band containing 0.0 GHz.
  • the reflected wave from the ID tag 101 is received by the receiving unit 53 via the receiving antenna 51b, and the level of the received power of the reflected wave is detected.
  • the processing unit 54 the reception detected by the receiving unit 53 is detected.
  • a resonance peak is detected depending on the power level.
  • antennas 121a and 122a in which a resonance peak appears in the vicinity of 7.0 GHz are formed in the antenna regions 131a and 132a, and the antenna regions 131b and 132b.
  • the antennas 121b and 122b having a resonance peak in the vicinity of 8.0 GHz are formed, and the antennas 121c and 122c having a resonance peak in the vicinity of 9.0 GHz are formed in the antenna regions 131c and 132c.
  • 132e are formed with antennas 121e, 122e having a resonance peak in the vicinity of 11.0 GHz, so that the received power of the reflected wave received by the receiving unit 53 is 7.0 GHz, 8.0 GHz, 9 Resonance peak at 0.0 GHz and 11.0 GHz .
  • the processing unit 54 sets the individual ID for the frequency at which the resonance peak is detected at an interval of 1 GHz.
  • the ID is set to “1”
  • the individual ID for the frequency for which the resonance peak is not detected is set to “0”
  • “1” and “0” that are the binary information are arranged in the order of, for example, the lowest frequency, thereby the ID tag.
  • the ID assigned to 101 is recognized. In the ID tag 101 shown in FIGS. 6a to 6c, as described above, the resonance peak is detected at 7.0 GHz, 8.0 GHz, 9.0 GHz, and 11.0 GHz.
  • ID “11101” is recognized in which “,” “1,” “1,” “0,” “1” are arranged in this order.
  • the 9.0 GHz resonance peak is due to the reference antennas 121c and 122c having a polarization direction different from that of the other antennas, so that it can be distinguished from the other resonance peaks. Therefore, by forming the antennas 121c and 122c in the antenna regions 131c and 132c without fail, the individual IDs are arranged so that the individual ID “1” due to the resonance peak of the antennas 121c and 122c is in the center.
  • the processing unit 54 detects Even when the resonance peak is slightly shifted, the ID assigned to the ID tag 101 can be accurately recognized.
  • the polarization direction is different if the waveform of the reflected wave is different from the reflected wave from the other antenna. Not limited to
  • a ground pattern 140 is provided on at least one of the laminated surfaces of the base substrate 110a and the base substrate 110b between the base substrates 110a and 110b.
  • the antenna regions 131a to 131e and 132a to 132e are opposed to each other between at least one of the laminated surfaces of the base substrate 110a and the base substrate 110b between the base substrates 110a and 110b.
  • the ground pattern 140 may be laminated so as to cover the antenna regions 131a to 131e and 132a to 132e, respectively.
  • the ground pattern may be one that does not cover a very small area of the antenna that is opposed to each other in plan view, and is defined as having a shape that covers the antenna in plan view.
  • frequencies are allocated to the antenna regions 131a to 131e and 132a to 132e, respectively, and the antenna regions 131a to 131c, 131e, 132a to 132c, and 132e are grounded.
  • the antennas 121a to 121c, 121e, 122a to 122c, and 122e in which resonance peaks appear in the vicinity of the frequencies assigned to the antenna regions 131a to 131c, 131e, 132a to 132c, and 132e are formed.
  • the antenna regions 131a to 131e and 132a to 132e Respectively Even if no assigned frequency, by arranging the individual ID determined by whether the resonance peak is detected, it is possible to recognize the ID assigned to the ID tag.
  • FIG. 8a is a diagram showing the surface configuration of another example of the basic form of the discriminating body of the present invention.
  • FIG. 8b is a cross-sectional view taken along the line A-A 'shown in FIG. 8a.
  • FIG. 8 c is a diagram showing the configuration of the back surface of another example of the basic form of the identifier of the present invention.
  • the identification body in this embodiment differs from the ID tag 1 shown in FIGS. 1a to 1c in the size of the antenna 222 formed in the antenna region 32 of the base substrate 10b. This is the ID tag 201.
  • the antenna 21 formed in the antenna region 31 of the base substrate 10a and the antenna 222 formed in the antenna region 32 of the base substrate 10b have a length in the longitudinal direction of each other.
  • the frequencies of the resonance peaks that appear when facing the ground pattern 40 are different from each other.
  • FIG. 9 is a diagram for explaining the frequency characteristics of the ID tag 201 shown in FIGS. 8a to 8c.
  • the frequency characteristic of the reflected wave is as shown by the solid line in FIG. Furthermore, it has a resonance peak in the vicinity of 8.3 GHz according to the shape of the antenna 21.
  • the frequency characteristic of the reflected wave is different from the shape of the antenna 21 in FIG. As indicated by the broken line, a resonance peak is present in the vicinity of 7.7 GHz according to the shape of the antenna 222.
  • the electromagnetic wave when the electromagnetic wave is irradiated from the surface side on which the antenna 21 is formed and the reflected wave is received, the electromagnetic wave does not penetrate the antenna 222 side by the ground pattern 40, and the antenna 222 is not affected by the antenna 222.
  • the resonance peak due to only the frequency characteristic of the antenna 21 appears, and when the reflected wave is received by irradiating the electromagnetic wave from the surface side where the antenna 222 is formed, the electromagnetic wave penetrates the antenna 21 side by the ground pattern 40. This is because a resonance peak due to only the frequency characteristic of the antenna 222 appears without being affected by the antenna 21.
  • the antennas 21 and 222 provided to face the front and back of the ground pattern 40 via the base substrates 10a and 10b are manifested by facing the ground pattern 40. Since the resonance peak frequencies are different from each other, the front and back of the ID tag 201 can be determined. Also, two IDs, an ID corresponding to the resonance peak due to the antenna 21 and an ID corresponding to the resonance peak due to the antenna 222, can be expressed according to the usage method of the ID tag 201.
  • FIG. 10a is a surface view showing a practical example of the ID tag 1 shown in FIGS. 1a to 1c.
  • FIG. 10B is a cross-sectional view taken along the line A-A ′ shown in FIG. 10A.
  • the ID tag 1 shown in FIGS. 1a to 1c is sandwiched from the front and back by two surface base materials 61a and 61b made of an insulating material such as a resin as shown in FIGS. 10a and 10b. 60 can be used.
  • the surface base 61a is laminated on the surface of the base base 10a on which the antenna 21 is formed, and the base base 10a and the surface base 61a are bonded by the adhesive layer 70a.
  • the base substrate 10b is laminated on the surface of the base substrate 10b on which the antenna 22 is formed, and the base substrate 10b and the surface substrate 61b are bonded together by the adhesive layer 70b to form the chipless card 60. It is possible to do.
  • the base substrates 10a and 10b and the surface substrates 61a and 61b may be bonded by means such as fusion without depending on the adhesive layers 70a and 70b.
  • the ID tag 1 shown in FIGS. 1a to 1c is built-in, so that even if it is in contact with a dielectric such as a human hand, it can be Even if an electromagnetic wave is irradiated from the surface side of the antenna and the reflected wave is received, the resonance peak by the antennas 21 and 22 can be detected, and the ID can be recognized correctly.
  • FIG. 11a is a surface view showing a modified practical example of the ID tag 1 shown in FIGS. 1a to 1c.
  • FIG. 11b is a cross-sectional view taken along the line A-A 'shown in FIG. 11a.
  • a thin case-like frame member 161 made of an insulating material such as resin is provided with a conductive plate 140 instead of the ground pattern 40 shown in FIGS. 1a to 1c.
  • the chipless card 160 is accommodated and provided with antennas 21 and 22 facing the conductive plate 140.
  • the conductive plate 140 is disposed at an intermediate point between the top surface and the bottom surface of the frame member 161, the antenna 21 is disposed on the inner surface of the top surface of the frame member 161, and the antenna 22 is disposed on the bottom surface of the frame member 161. Each is formed on the inner surface. As a result, spaces 110 a and 110 b serving as insulating layers are formed between the antennas 21 and 22 and the conductive plate 140, respectively.
  • the antennas 21 and 22 that exhibit resonance peaks when facing the conductive plate 140 are connected to the front and back surfaces of the conductive plate 140 via the spaces 110a and 110b serving as insulating layers. Even if the conductive plate 140 has a shape that covers the antennas 21 and 22 in a plan view, both surfaces of the front and back sides are provided, facing each other. Even if an electromagnetic wave is irradiated from the side and the reflected wave is received, the resonance peak by the antennas 21 and 22 can be detected, and the ID can be recognized correctly.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Credit Cards Or The Like (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Aerials With Secondary Devices (AREA)
  • Details Of Aerials (AREA)

Abstract

La présente invention reconnaît avec justesse des informations d'identification sans entraîner une baisse de commodité même lorsqu'elle est utilisée dans un état où elle est en contact avec un diélectrique. La présente invention comprend un motif 40 de terre et des antennes 21, 22 placées face à la surface et au revers du motif 40 de terre, respectivement via des substrats 10a, 10b de base, pour provoquer l'apparition d'un pic de résonance du fait des antennes 21, 22 faisant face au motif 40 de terre. Le motif 40 de terre présente une forme de nature à recouvrir les antennes 21, 22 dans une vue en plan.
PCT/JP2017/041436 2016-12-14 2017-11-17 Support discriminant WO2018110201A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016-242336 2016-12-14
JP2016242336A JP6770884B2 (ja) 2016-12-14 2016-12-14 識別体

Publications (1)

Publication Number Publication Date
WO2018110201A1 true WO2018110201A1 (fr) 2018-06-21

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PCT/JP2017/041436 WO2018110201A1 (fr) 2016-12-14 2017-11-17 Support discriminant

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JP (1) JP6770884B2 (fr)
WO (1) WO2018110201A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002185281A (ja) * 2000-12-14 2002-06-28 Lintec Corp 共振回路
JP2004246816A (ja) * 2003-02-17 2004-09-02 Mitsubishi Materials Corp Ｒｆｉｄシステム並びにｒｆｉｄタグの相互干渉抑制方法
JP2016103673A (ja) * 2014-11-27 2016-06-02 トッパン・フォームズ株式会社 識別体及びこの識別体のｉｄを判別する判別システム

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002185281A (ja) * 2000-12-14 2002-06-28 Lintec Corp 共振回路
JP2004246816A (ja) * 2003-02-17 2004-09-02 Mitsubishi Materials Corp Ｒｆｉｄシステム並びにｒｆｉｄタグの相互干渉抑制方法
JP2016103673A (ja) * 2014-11-27 2016-06-02 トッパン・フォームズ株式会社 識別体及びこの識別体のｉｄを判別する判別システム

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JP6770884B2 (ja) 2020-10-21

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