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WO2024190404A1 - Étiquette rfid et article étiqueté rfid - Google Patents

Étiquette rfid et article étiqueté rfid Download PDF

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Publication number
WO2024190404A1
WO2024190404A1 PCT/JP2024/007124 JP2024007124W WO2024190404A1 WO 2024190404 A1 WO2024190404 A1 WO 2024190404A1 JP 2024007124 W JP2024007124 W JP 2024007124W WO 2024190404 A1 WO2024190404 A1 WO 2024190404A1
Authority
WO
WIPO (PCT)
Prior art keywords
electrode
rfid tag
substrate
elastic member
antenna conductor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/JP2024/007124
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English (en)
Japanese (ja)
Inventor
邦宏 駒木
登 加藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Murata Manufacturing Co Ltd
Original Assignee
Murata Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Murata Manufacturing Co Ltd filed Critical Murata Manufacturing Co Ltd
Publication of WO2024190404A1 publication Critical patent/WO2024190404A1/fr
Anticipated expiration legal-status Critical
Pending legal-status Critical Current

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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/077—Constructional details, e.g. mounting of circuits in the carrier

Definitions

  • This disclosure relates to an RFID tag that is attached to an elastically deformable item and to an RFID-tagged item.
  • Patent Document 1 discloses an RFID device (RFID tag) that can be incorporated into tires.
  • the objective of this disclosure is to provide an RFID tag that is attached to an elastically deformable item and has a structure that makes it less likely to be damaged even if the item is deformed.
  • a first substrate an RFIC chip provided on the first substrate; a first electrode provided on the first substrate and electrically connected to the RFIC chip, the first electrode having a first surface; a flexible antenna conductor; a second electrode including a second surface electrically connected to the antenna conductor and facing the first surface of the first electrode with a gap therebetween to form a capacitance between the second surface and the first surface; and a resilient member supporting the first electrode and the second electrode.
  • An RFID tagged article having an RFID tag and elastically deforming,
  • the RFID tag is A first substrate; an RFIC chip provided on the first substrate; a first electrode provided on the first substrate, electrically connected to the RFIC chip, the first electrode having a first surface;
  • An RFID tagged article is provided, comprising: a second electrode having a second surface electrically connected to the antenna conductor and facing the first surface of the first electrode at a distance to form a capacitance between the first surface and the second surface; and an elastic member supporting the first electrode and the second electrode.
  • FIG. 1 is a schematic diagram of an RFID tag according to a first embodiment of the present disclosure that is provided on an elastically deformable item.
  • FIG. 1 is a partial cross-sectional view of an RFID tag according to a first embodiment.
  • FIG. 1 is a perspective view of an example of an RFIC module according to a first embodiment;
  • FIG. 1 is an exploded perspective view of an example of an RFIC module according to a first embodiment;
  • FIG. 13 is a partial cross-sectional view of an RFID tag according to a modification of the first embodiment.
  • FIG. 13 is a partial cross-sectional view of an RFID tag according to a second embodiment.
  • FIG. 13 is a partial cross-sectional view of an RFID tag according to a third embodiment.
  • FIG. 13 is a partial cross-sectional view of an RFID tag according to a fourth embodiment.
  • FIG. 13 is a partial cross-sectional view of an RFID tag according to a fifth embodiment.
  • FIG. 13 is a partial cross-sectional view of an RFID tag according to a sixth embodiment.
  • FIG. 13 is a partial cross-sectional view of an RFID tag according to still another embodiment.
  • Fig. 1 is a schematic diagram of an RFID tag according to a first embodiment of the present disclosure, which is provided on an elastically deformable article.
  • Fig. 2 is a partial cross-sectional view of the RFID tag according to the first embodiment. Note that the X-Y-Z orthogonal coordinate system in the figure is provided for the purpose of making the present disclosure easier to understand, and is not intended to limit the present disclosure.
  • the RFID (Radio Frequency IDentification) tag 10 is used while embedded in an elastically deformable object W.
  • the RFID tag 10 is used while embedded in an elastically deformable object such as a tire, vibration-isolating rubber, or a rubber ball.
  • the RFID tag 10 is used to hold information such as the manufacturing date and manufacturer of the object W.
  • the RFID tag 10 comprises a main body 12 and first and second antenna conductors 14, 16 extending from the main body 12.
  • a radio frequency integrated circuit (RFIC) module 20 is provided within the main body 12 and electrically connected to the first and second antenna conductors 14, 16.
  • RFIC radio frequency integrated circuit
  • the main body 12 of the RFID tag 10 is a package that covers and protects the RFIC module 20 and the connections between the RFIC module 20 and the first and second antenna conductors 14, 16. Details will be described later.
  • the first and second antenna conductors 14, 16 are made of a flexible conductive material. In the case of the first embodiment, the first and second antenna conductors 14, 16 are spring-shaped. Furthermore, the first and second antenna conductors 14, 16 extend from the main body 12 in opposite directions to each other, and function as dipole antennas.
  • the RFIC module 20 is a module that performs wireless communication using the first and second antenna conductors 14, 16.
  • FIG. 3 is a perspective view of an example of an RFIC module according to the first embodiment.
  • FIG. 4 is an exploded perspective view of an example of an RFIC module according to the first embodiment.
  • FIG. 5 is an equivalent circuit diagram of an RFID tag according to the first embodiment.
  • the RFIC module 20 includes an insulating substrate 22 (first substrate) and an RFIC chip 24 provided on the insulating substrate 22. Also, as shown in Figure 5, the RFIC module 20 includes a matching circuit 26 that electrically connects the first and second antenna conductors 14, 16 to the RFIC chip 24 and performs impedance matching between them.
  • an RFIC chip 24, a first conductor pattern 28, and a second conductor pattern 30 are provided on a first surface 22a of the insulating substrate 22.
  • a third conductor pattern 32, a first terminal 34, and a second terminal 36 are provided on a second surface 22b of the insulating substrate 22 opposite the first surface 22a.
  • the first conductor pattern 28 is formed in a spiral shape so as to form a first inductor L1 in the matching circuit 26.
  • the outer end 28a of the first conductor pattern 28 is electrically connected to the first input/output terminal 24a of the RFIC chip 24, for example, via solder.
  • the inner end 28b of the first conductor pattern 28 is electrically connected to the third conductor pattern 32 via an interlayer connection conductor 38, such as a through-hole conductor, that penetrates the insulating substrate 22.
  • the first conductor pattern 28 also includes a connection portion 28c for electrically connecting to the first terminal 34.
  • the connection portion 28c is electrically connected to the first terminal 34 via an interlayer connection conductor 40 that penetrates the insulating substrate 22.
  • the second conductor pattern 30 is formed in a spiral shape so as to form a second inductor L2 in the matching circuit 26.
  • the outer end 30a of the second conductor pattern 30 is electrically connected to the second input/output terminal 24b of the RFIC chip 24, for example, via solder.
  • the inner end 30b of the second conductor pattern 30 is electrically connected to the third conductor pattern 32 via an interlayer connection conductor 42 that penetrates the insulating substrate 22.
  • the second conductor pattern 30 also includes a connection portion 30c for electrically connecting to the second terminal 36.
  • the connection portion 30c is electrically connected to the second terminal 36 via an interlayer connection conductor 44 that penetrates the insulating substrate 22.
  • the third conductor pattern 32 includes spiral portions 32a and 32b and an S-shaped connection portion 32c that connects the outer ends of the spiral portions 32a and 32b.
  • the spiral portion 32a constitutes the third inductor L3 in the matching circuit 26
  • the spiral portion 32b constitutes the fourth inductor L4
  • the connection portion 32c constitutes the fifth inductor L5.
  • the inner end 32d of the spiral portion 32a is electrically connected to the inner end 28b of the first conductor pattern 28 via the interlayer connection conductor 38.
  • the inner end 32e of the spiral portion 32b is electrically connected to the inner end 30b of the second conductor pattern 30 via the interlayer connection conductor 42.
  • the first and second terminals 34, 36 are provided on the second surface 22b of the insulating substrate 22 such that the third conductor pattern 32 is located between them.
  • the first terminal 34 is electrically connected to the first antenna conductor 14.
  • the second terminal 36 is electrically connected to the second antenna conductor 16. Details of the electrical connection between the first and second terminals 34, 36 of the RFIC module 20 and the first and second antenna conductors 14, 16 will be described later.
  • the first and second antenna conductors 14, 16 receive radio waves (signals) of a predetermined frequency (communication frequency)
  • a current corresponding to the signal flows from the first and second antenna conductors 14, 16 to the RFIC chip 24 via the matching circuit 26.
  • the RFIC chip 24 is driven by the current and outputs a current (signal) corresponding to information stored in its internal memory unit (not shown) to the first and second antenna conductors 14, 16. Then, radio waves (signals) corresponding to the current are radiated from the first and second antenna conductors 14, 16.
  • the first and second antenna conductors 14, 16 and the first and second terminals 34, 36 of the RFIC module 20 are electrically connected via the first electrodes 50, 52 and the second electrodes 54, 56.
  • the first electrodes 50, 52 are made of a conductive material.
  • the first electrodes 50, 52 are provided on the insulating substrate 22 and are electrically connected to the first and second terminals 34, 36 of the RFIC module 20 via solder or the like. Furthermore, the first electrodes 50, 52 have first surfaces 50a, 52a that face the corresponding second electrodes 54, 56.
  • the second electrodes 54, 56 are made of a conductive material.
  • the second electrodes 54, 56 are electrically connected to the first and second antenna conductors 14, 16 via solder or the like.
  • the second electrodes 54, 56 have second surfaces 54a, 56a that face the corresponding first electrodes 50, 52.
  • the first antenna conductor 14 and the second electrode 54 may be integrated as one part made of the same material, such as stainless steel.
  • the second antenna conductor 16 and the second electrode 56 may be integrated.
  • the portion of the stainless steel to which the solder is to be applied is brass plated.
  • the first surface 52a of the first electrode 52 and the second surface 56a of the second electrode 56 face each other in a parallel manner with a gap therebetween.
  • a capacitance C2 is formed between them.
  • the capacitance C2 may be the same as or different from the capacitance C1.
  • the second antenna conductor 16 and the second terminal 36 of the RFIC module 20 are capacitively coupled.
  • the first electrode 50 and the second electrode 54 are supported by an elastic member 60 such that the first and second surfaces 50a, 54a face each other with a gap therebetween and are displaceable relative to each other.
  • first electrode 52 and the second electrode 56 are supported by an elastic member 62 with the first and second surfaces 52a, 56a facing each other and capable of being displaced relative to each other.
  • the elastic members 60, 62 are made from an elastic material, such as an elastomer, that is elastically deformable at room temperature.
  • the elastic members 60, 62 are made from a material that is capable of deforming in response to the deformation of the object W.
  • the elastic members 60, 62 have characteristics that make them more easily deformable than the object W, such as having lower rigidity (smaller Young's modulus) than the object W.
  • the elastic members 60, 62 and the object W may be made from the same elastic material.
  • the first electrode 50 and the second electrode 54 are supported by the elastic member 60 by being at least partially embedded in the elastic member 60. Also, a portion of the elastic member 60 exists between the first and second surfaces 50a, 54a.
  • the first electrode 50 has its entire first surface 50a and its peripheral portion embedded in the elastic member 60.
  • the remaining portion of the first electrode 50 is embedded in a rigid member 64 having higher rigidity than the elastic members 60, 62.
  • the rigid member 64 is made of, for example, epoxy resin.
  • the entire RFIC module 20, i.e., the insulating substrate 22 and the RFIC chip 24, are embedded in the rigid member 64. This prevents the RFIC module 20 from deforming and protects it.
  • the entire second electrode 54 is embedded in the elastic member 60.
  • the joint between the second electrode 54 and the first antenna conductor 14 is also embedded in the elastic member 60.
  • the joint between the second electrode 54 and the first antenna conductor 14 is protected by the elastic member 60.
  • first electrode 52 and the second electrode 56 are supported by the elastic member 62 by being at least partially embedded within the elastic member 62. Also, a portion of the elastic member 62 exists between the first and second surfaces 52a, 56a.
  • the first electrode 52 has its entire first surface 52a and its peripheral portion embedded in the elastic member 62. The remaining portion of the first electrode 52 is embedded in the rigid member 64.
  • the entire second electrode 56 is embedded in the elastic member 62.
  • the joint between the second electrode 56 and the second antenna conductor 16 is also embedded in the elastic member 62.
  • the joint between the second electrode 56 and the second antenna conductor 16 is protected by the elastic member 62.
  • the elastic members 60, 62 when the article W in which the RFID tag 10 is embedded is deformed as shown in FIG. 1, the elastic members 60, 62 deform more than other parts of the RFID tag 10. That is, stress is concentrated on the elastic members 60, 62, and stress concentration on other parts is alleviated. For example, stress concentration on the joints between the first and second antenna conductors 14, 16 and the second electrodes 54, 56 is alleviated. As a result, damage to the RFID tag 10 caused by deformation of the article W in which the RFID tag 10 is provided is suppressed.
  • the RFID tag 10 performs wireless communication with an external device (e.g., a reader/writer device) when the item W is not deformed, i.e., when the elastic members 60, 62 are in their natural state.
  • an external device e.g., a reader/writer device
  • the first surfaces 50a, 52a of the first electrodes 50, 52 and the second surfaces 54a, 56a of the second electrodes 54, 56 face each other with a predetermined gap between them (capacitances C1, C2 are formed), and high-frequency signals can be transmitted between the first and second antenna conductors 14, 16 and the RFIC chip 24.
  • FIG. 6 is a partial cross-sectional view of an RFID tag according to a modified example of the first embodiment.
  • the rigid member 64 in which the RFIC module 20 including the insulating substrate 22 and the RFIC chip 24 is embedded may be omitted. This is because the RFIC module 20 is covered and protected by the item W.
  • an RFID 10 tag is attached to an elastically deformable object W and used such that the tag is less likely to be damaged even if the object W is deformed.
  • the second embodiment is an improved version of the RFID tag 10 according to the first embodiment. Therefore, the second embodiment will be described focusing on the differences from the first embodiment. Note that the same reference numerals are used to designate the components of the second embodiment that are substantially the same as those of the first embodiment.
  • FIG. 7 is a partial cross-sectional view of an RFID tag according to the second embodiment.
  • the first electrodes 50, 52 are entirely embedded in the rigid member 164.
  • an elastic member 160 and a rigid member 164 are present between the first surface 50a of the first electrode 50 and the second surface 54a of the second electrode 54.
  • an elastic member 162 and a rigid member 164 are present between the first surface 52a of the first electrode 52 and the second surface 56a of the second electrode 56. Therefore, the first surfaces 50a, 52a and the second surfaces 54a, 56b are capacitively coupled via the elastic members 160, 162 and the rigid member 164.
  • the present embodiment 3 is an improved form of the RFID tag 10 according to the above-mentioned embodiment 1. Therefore, the present embodiment 3 will be described focusing on the differences from embodiment 1. Note that the same reference numerals are used to designate the components of the present embodiment 3 that are substantially the same as those of embodiment 1.
  • FIG. 8 is a partial cross-sectional view of an RFID tag according to the third embodiment.
  • the entire rigid member 264 is embedded in the elastic member 260.
  • the components of the RFID tag 210 are embedded in the elastic member 260.
  • the rigid member 264 is protected by the elastic member 260.
  • All of the components of the RFID tag i.e., the first and second antenna conductors 14, 16, the RFIC module 20, the first electrodes 50, 52, the second electrodes 54, 56, and the rigid member 264, may be entirely embedded within the elastic member 260.
  • the fourth embodiment is an improved version of the RFID tag 10 according to the first embodiment. Therefore, the fourth embodiment will be described focusing on the differences from the first embodiment. Note that the same reference numerals are used to designate the components of the fourth embodiment that are substantially the same as those of the first embodiment.
  • FIG. 9 is a partial cross-sectional view of an RFID tag according to the fourth embodiment.
  • the RFID tag 310 in the case of the RFID tag 310 according to the fourth embodiment, unlike the above-mentioned first embodiment, there is no rigid member 264. Except for a portion of each of the first and second antenna conductors 14 and 16, the components of the RFID tag 310 are embedded in the elastic member 360.
  • All of the components of the RFID tag i.e., the first and second antenna conductors 14, 16, the RFIC module 20, the first electrodes 50, 52, and the second electrodes 54, 56, may be entirely embedded within the elastic member 360.
  • the fourth embodiment similar to the first embodiment described above, it is possible to realize a structure in which an RFID 310 tag is attached to an elastically deformable object and used, such that the RFID 310 tag is less likely to be damaged even if the object is deformed.
  • FIG. 10 is a partial cross-sectional view of an RFID tag according to the fifth embodiment.
  • the first electrodes 450, 452 have first surfaces 450a, 452a facing the normal direction (Z-axis direction) of the insulating substrate 22.
  • the second electrodes 454, 456 have second surfaces 454a, 456a facing the normal direction of the insulating substrate 22.
  • the first surfaces 450a, 452a and the second surfaces 454a, 456a face each other at a distance in the normal direction of the insulating substrate 22 and are capacitively coupled.
  • the first electrodes 450, 452 and the second electrodes 454, 456 are supported by an elastic member 460 (embedded in the elastic member 460) so that the first surfaces 450a, 452a and the second surfaces 454a, 456a can be displaced relative to each other.
  • the first and second terminals 34, 36 of the RFIC module 20 shown in FIG. 4 may be used as the first electrodes 450, 452. This eliminates the need to provide the first electrode as a separate member on the insulating substrate.
  • the first antenna conductor 14 and the second electrode 454 may be integrated as a single component made of the same material, such as stainless steel.
  • the second antenna conductor 16 and the second electrode 456 may be integrated.
  • first antenna conductor 14 and the second antenna conductor 16 may be made from the same material.
  • FIG. 11 is a partial cross-sectional view of an RFID tag according to embodiment 5 before completion.
  • the first antenna conductor 14 and the second antenna conductor 16 are made from one wire 466.
  • a portion 466a of the wire 466 is exposed from the elastic member 460.
  • the first antenna conductor 14 and the second antenna conductor 16 are completed by cutting the exposed portion 466a of the wire 466 along the cutting line CL along the elastic member 460.
  • This manufacturing method makes it easier to manufacture an RFID tag compared to when the first antenna conductor 14 and the second antenna conductor 16 are configured as separate parts. In other words, it is easier to solder the wire 466 to the second electrodes 454, 456 compared to when the first antenna conductor 14 and the second antenna conductor 16 are soldered separately to the second electrodes 454, 456.
  • the first antenna conductor 14 and the second antenna conductor 16 can be easily connected in a DC manner within the elastic member 460. That is, a portion 466a of the wire 446 shown in FIG. 11 is embedded in the elastic member 460.
  • the RFIC module 20 exists between the first antenna conductor 14 and the second antenna conductor 16, so that it is difficult to connect the first antenna conductor 14 and the second antenna conductor 16 in a DC manner.
  • an RFID 410 tag is attached to an elastically deformable object and used such that the tag is less likely to be damaged even if the object is deformed.
  • the sixth embodiment is an improved version of the RFID tag 410 according to the fifth embodiment. Therefore, the sixth embodiment will be described focusing on the differences from the fifth embodiment. Note that the same reference numerals are used to designate the components of the sixth embodiment that are substantially the same as those of the fifth embodiment.
  • FIG. 12 is a partial cross-sectional view of an RFID tag according to the sixth embodiment.
  • the second electrodes 554, 556 are provided on insulating substrates 568, 570 (second insulating substrates), respectively.
  • the second electrodes 554, 556 are, for example, conductor patterns formed on the insulating substrates 568, 570.
  • the insulating substrates 568, 570 are disposed at a distance from the insulating substrate 22 of the RFIC module 20.
  • the structure of the RFID tag 510 according to this sixth embodiment is easy to manufacture.
  • the first electrodes 450, 452 and the second electrodes 454, 456 are set in a mold in a state where they are positioned so as to face each other with a predetermined gap between them, and then the material of the elastic member 460 is filled into the mold. As a result, the first electrodes 450, 452 and the second electrodes 454, 456 are supported by the elastic member 460.
  • insulating substrates 568, 570 are laminated on the RFIC module 20 via an elastic sheet (a part of the elastic member 560).
  • the elastic sheet With a thickness corresponding to the predetermined distance, the first electrodes 450, 452 and the second electrodes 454, 456 can be positioned relative to each other simultaneously and easily.
  • the elastic member 560 in which the RFIC module 20 and insulating substrates 568, 570 are embedded is molded by a mold.
  • insulating substrates 568, 570 may be integrated into a single substrate. However, if large bending stress may occur in the integrated insulating substrate due to deformation of the article, it is preferable that insulating substrates 568, 570 are independent of each other.
  • an RFID 410 tag is attached to an elastically deformable object and used such that the tag is less likely to be damaged even if the object is deformed.
  • the RFID tag 10 has first and second antenna conductors 14, 16 as antenna conductors. Furthermore, the first and second antenna conductors 14, 16 function as dipole antennas.
  • the embodiment of the present disclosure is not limited to this.
  • FIG. 13 is a partial cross-sectional view of an RFID tag according to yet another embodiment.
  • the RFID tag 610 has one antenna conductor 614 that functions as a monopole antenna.
  • the antenna conductor 614 is electrically connected to an RFIC chip 624 on an insulating substrate 622 via a first electrode 650 and a second electrode 654 that are capacitively coupled.
  • the RFIC chip 624 is configured to perform wireless communication via the one antenna conductor 614.
  • the first and second antenna conductors 14, 16 of the RFID tag 10 are spring-shaped. This allows the first and second antenna conductors 14, 16 to deform in response to deformation of the article W on which the RFID tag is provided. As a result, the first and second antenna conductors 14, 16 are prevented from breaking due to deformation of the article W.
  • the embodiment of the present disclosure does not limit the shape of the antenna conductors.
  • the shape of the antenna conductor may be, for example, meandering or linear. Also, a portion of the antenna conductor may be spring-shaped, meandering or linear. In other words, the shape of the antenna conductor may be any shape that allows the antenna conductor to be flexible and elastically deformable.
  • the RFID tag 10 is embedded in an elastically deforming object W.
  • the RFID tag according to the embodiment of the present disclosure is not limited to this usage method.
  • the RFID tag may be attached to the surface of a plate-like object that elastically deforms.
  • the RFID tag according to the embodiment of the present disclosure is used by being attached to a part of an object that can return to its original shape after being deformed.
  • the RFID tag according to the embodiment of the present disclosure can also be used by being attached to a part of an object that does not deform at all.
  • the first aspect is A first substrate; an RFIC chip provided on the first substrate; a first electrode provided on the first substrate and electrically connected to the RFIC chip, the first electrode having a first surface; a flexible antenna conductor; a second electrode including a second surface electrically connected to the antenna conductor and facing the first surface of the first electrode with a gap therebetween to form a capacitance between the second surface and the first surface; and an elastic member supporting the first electrode and the second electrode.
  • the second aspect is An RFID tag of a first aspect, wherein each of the first electrode and the second electrode is at least partially embedded within the elastic member, with at least a portion of the elastic member being between the first surface and the second surface.
  • the third aspect is in a second aspect of the RFID tag, a joint between the second electrode and the antenna conductor is embedded in the elastic member.
  • the fourth aspect is in the RFID tag of a third embodiment, the RFIC chip, the first substrate, and the first electrode are each entirely embedded within the elastic member.
  • the fifth aspect is An RFID tag of a third embodiment further includes a rigid member in which the RFIC chip, the first substrate, and a portion of the first electrode located outside the elastic member are embedded, the rigid member having a higher rigidity than the elastic member.
  • the sixth aspect is in a fifth aspect of the RFID tag, the rigid member is embedded entirely within the elastic member.
  • a seventh aspect of the present invention further includes a second substrate disposed at a distance from the first substrate, the first electrode is formed on the first substrate; This is an RFID tag of any one of the first to sixth aspects, wherein the second electrode is formed on the second substrate so that the second surface faces the first surface of the first electrode.
  • the eighth aspect is The antenna conductor includes a first antenna conductor and a second antenna conductor, The RFID tag of any one of the first to seventh aspects, wherein the first and second antenna conductors are electrically connected to the RFIC chip via the first and second electrodes, respectively.
  • the ninth aspect is Aspects 1 to 8 are aspects of the RFID tag, wherein the antenna conductor is spring-shaped.
  • a tenth aspect is The RFID tag according to any one of the first to ninth aspects is embedded in an article that is elastically deformable.
  • An eleventh aspect is An RFID tagged article having an RFID tag and elastically deforming,
  • the RFID tag is A first substrate; an RFIC chip provided on the first substrate; a first electrode provided on the first substrate, electrically connected to the RFIC chip, the first electrode having a first surface; A flexible antenna conductor;
  • the RFID tagged article has: a second electrode electrically connected to the antenna conductor and having a second surface that faces the first surface of the first electrode at a distance from the first surface to form a capacitance between the first surface and the second surface; and an elastic member that supports the first electrode and the second electrode.
  • This disclosure is applicable to RFID tags that are attached to elastic bodies that undergo elastic deformation.

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  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Details Of Aerials (AREA)

Abstract

Une étiquette RFID selon la présente invention comprend : un premier substrat ; une puce RFIC qui est disposée sur le premier substrat ; une première électrode qui est disposée sur le premier substrat, est électriquement connectée à la puce RFIC, et a une première surface ; un conducteur d'antenne flexible ; une seconde électrode qui est électriquement connectée au conducteur d'antenne et a une seconde surface qui est opposée à la première surface de la première électrode avec un intervalle entre elles et forme une capacité avec la première surface ; et un élément élastique qui supporte la première électrode et la seconde électrode.
PCT/JP2024/007124 2023-03-15 2024-02-27 Étiquette rfid et article étiqueté rfid Pending WO2024190404A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2023-041033 2023-03-15
JP2023041033 2023-03-15

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WO2024190404A1 true WO2024190404A1 (fr) 2024-09-19

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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008086038A (ja) * 2006-01-19 2008-04-10 Murata Mfg Co Ltd 無線ｉｃデバイス
JP2008160874A (ja) * 2006-04-14 2008-07-10 Murata Mfg Co Ltd 無線ｉｃデバイス
WO2009011041A1 (fr) * 2007-07-18 2009-01-22 Fujitsu Limited Marqueur sans fil et procédé de fabrication du marqueur sans fil
WO2010140429A1 (fr) * 2009-06-03 2010-12-09 株式会社村田製作所 Dispositif de circuit intégré sans fil et son procédé de production
JP2013126838A (ja) * 2011-12-19 2013-06-27 Toppan Forms Co Ltd タイヤ
JP2013171430A (ja) * 2012-02-21 2013-09-02 Sato Holdings Corp Ｒｆｉｄタグのｒｆｉｄアンテナ
JP2013206080A (ja) * 2012-03-28 2013-10-07 Toppan Forms Co Ltd 非接触型データ受送信体
WO2017130956A1 (fr) * 2016-01-25 2017-08-03 トッパン・フォームズ株式会社 Pneu dans lequel est incorporée une étiquette rfid
WO2020079962A1 (fr) * 2018-10-15 2020-04-23 株式会社村田製作所 Dispositif de communication sans fil
JP2022549804A (ja) * 2019-09-25 2022-11-29 コンパニー ゼネラール デ エタブリッスマン ミシュラン 無線周波数トランスポンダを備えたタイヤ

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008086038A (ja) * 2006-01-19 2008-04-10 Murata Mfg Co Ltd 無線ｉｃデバイス
JP2008160874A (ja) * 2006-04-14 2008-07-10 Murata Mfg Co Ltd 無線ｉｃデバイス
WO2009011041A1 (fr) * 2007-07-18 2009-01-22 Fujitsu Limited Marqueur sans fil et procédé de fabrication du marqueur sans fil
WO2010140429A1 (fr) * 2009-06-03 2010-12-09 株式会社村田製作所 Dispositif de circuit intégré sans fil et son procédé de production
JP2013126838A (ja) * 2011-12-19 2013-06-27 Toppan Forms Co Ltd タイヤ
JP2013171430A (ja) * 2012-02-21 2013-09-02 Sato Holdings Corp Ｒｆｉｄタグのｒｆｉｄアンテナ
JP2013206080A (ja) * 2012-03-28 2013-10-07 Toppan Forms Co Ltd 非接触型データ受送信体
WO2017130956A1 (fr) * 2016-01-25 2017-08-03 トッパン・フォームズ株式会社 Pneu dans lequel est incorporée une étiquette rfid
WO2020079962A1 (fr) * 2018-10-15 2020-04-23 株式会社村田製作所 Dispositif de communication sans fil
JP2022549804A (ja) * 2019-09-25 2022-11-29 コンパニー ゼネラール デ エタブリッスマン ミシュラン 無線周波数トランスポンダを備えたタイヤ

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