WO2020059154A1 - Substrat de communication sans fil et étiquette de communication sans fil - Google Patents
Substrat de communication sans fil et étiquette de communication sans fil Download PDFInfo
- Publication number
- WO2020059154A1 WO2020059154A1 PCT/JP2018/035232 JP2018035232W WO2020059154A1 WO 2020059154 A1 WO2020059154 A1 WO 2020059154A1 JP 2018035232 W JP2018035232 W JP 2018035232W WO 2020059154 A1 WO2020059154 A1 WO 2020059154A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- wireless communication
- antenna
- wireless
- electrode
- chip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
Definitions
- the present invention relates to a wireless communication board and a wireless communication tag.
- Patent Literature 1 discloses a configuration in which a wireless IC chip is arranged in a cavity provided in a laminated substrate having electrodes, and the wireless IC chip is sealed in the cavity by a sealing material. Is disclosed.
- the wireless IC chip is sealed in the cavity of the laminated substrate. Therefore, when, for example, a wireless IC chip is replaced with another wireless IC chip or the shape of an electrode on a laminated substrate is changed in accordance with a change in required specifications of a wireless communication tag, the wireless IC chip and the laminated substrate Both had to be changed and there was room for improvement in component compatibility.
- an object of the present invention is to provide a wireless communication board that can ensure the compatibility of components when, for example, changing required specifications.
- a wireless communication board is provided with a conductive mounting antenna portion on which a wireless IC chip is mounted, and an electrode for performing electric field coupling with the mounting antenna portion.
- the antenna device includes an antenna body disposed in the stacking direction, and an insulating first spacer laminated between the mounted antenna and the antenna body.
- the antenna body includes an electrode and a base material that supports the electrode.
- the electrode and the base material are arranged side by side in the stacking direction, and the electrodes face each other with a part thereof being spaced apart in the stacking direction. It may be bent so that it does.
- the antenna body has a rectangular shape in a plan view as viewed from the lamination direction, and the electrodes, except in the center in the long side direction along the long side, in plan view as viewed from the short side direction along the short side. , May be bent so that some of them face each other at intervals in the stacking direction.
- the mounted antenna unit includes a pair of wings arranged at intervals, and the pair of wings has a rectangular shape in a plan view as viewed from the stacking direction, and the size of one side L (mm) is ,
- the following equation (1) may be satisfied. ⁇ / 100 ⁇ L ⁇ ⁇ / 10 (1)
- ⁇ Wavelength of radio wave used by wireless IC chip (mm)
- the thickness T (mm) of the first spacer portion in the laminating direction may satisfy the following expression (2). ⁇ / 10000 ⁇ L ⁇ ⁇ / 100 (2) ⁇ : Wavelength of radio wave used by wireless IC chip (mm)
- a conductive reflective material laminated on the opposite side of the mounted antenna portion sandwiching the antenna body in the laminating direction, and an insulating second spacer portion laminated between the antenna body and the reflective material, May be provided.
- a wireless tag includes any one of the wireless communication boards described above and a wireless IC chip mounted on a mounting antenna unit.
- the first spacer portion is stacked between the mounting antenna portion on which the wireless IC chip is mounted and the antenna main body portion on which the electrodes are arranged, and the wireless IC chip and the electrode Are arranged as separate members. For this reason, when replacing the wireless IC chip with another wireless IC chip or changing the shape of the electrode by changing the required specifications, one of the components of the mounted antenna section and the antenna main body section is changed. That is enough, there is no need to change the other part. Thus, for example, when a required specification is changed, parts that do not need to be changed can be diverted to a product with a new specification, and compatibility of the parts can be ensured.
- FIG. 2 is an exploded perspective view showing the wireless communication tag according to the first embodiment of the present invention.
- FIG. 2 is a sectional view taken along line XX of the antenna main body shown in FIG. 1. It is a figure which shows the operation
- B) shows a state in which a current flows through the antenna body due to the influence of the electromagnetic wave.
- D A state in which a current flows through the mounted antenna unit when information is read from the wireless IC chip.
- FIG. 2 is a schematic diagram illustrating a state where an antenna main body is replaced in the wireless communication tag illustrated in FIG. 1.
- FIG. 4 is an exploded perspective view showing a first modification of the wireless communication tag shown in FIG. 1. It is a schematic diagram which shows (a) 2nd modification, (b) 3rd modification, and (c) 4th modification of the wireless communication tag shown in FIG.
- FIG. 13 is an exploded perspective view showing a fifth modification of the wireless communication tag shown in FIG. 1.
- FIG. 8 is a sectional view taken along the line YY of the antenna main body shown in FIG. 7.
- FIG. 13 is a schematic diagram showing a sixth modification of the wireless communication tag shown in FIG. 1.
- the wireless communication tag 1 is a communication module for exchanging information by performing wireless communication between a mounted wireless IC chip 2 and an external communication reader (not shown).
- the wireless communication tag 1 includes a wireless IC chip 2 and a wireless communication board 3 holding the wireless IC chip 2.
- a wireless IC chip 2 for example, a UCODE (registered trademark) 8 chip or the like can be used as generally used in an RFID system.
- the wireless communication board 3 includes a mounting antenna section 10 on which the wireless IC chip 2 is mounted, an antenna main body section 11 arranged in the stacking direction with respect to the mounting antenna section 10, and a mounting antenna section 10. And an insulating first spacer portion 12 laminated between the antenna and the antenna main body portion 11.
- the mounting antenna unit 10, the antenna main body unit 11, and the first spacer unit 12 have a rectangular shape in a plan view (hereinafter, simply referred to as a plan view) when viewed from the lamination direction.
- the mounted antenna unit 10 is in the form of a film having conductivity.
- a metal material is employed for the mounting antenna unit 10.
- the mounted antenna unit 10 has a rectangular shape having short sides and long sides as a whole in a plan view (hereinafter, referred to as a top view) when viewed from the stacking direction.
- the mounted antenna unit 10 is composed of an aluminum film having a thickness of 9 ⁇ m and a PET resin film having a thickness of 50 ⁇ m.
- the aluminum film is bonded to the PET resin film with an adhesive.
- the thickness of the adhesive layer is 5 ⁇ m.
- the aluminum film may be changed to another metal material, and the PET resin film may be changed to another resin material. Also, the thickness of each can be arbitrarily changed.
- the mounted antenna section 10 includes a pair of wing sections 10A arranged at an interval.
- the pair of wings 10A have a rectangular shape in a range that does not protrude from the outer edge of the antenna main body 11 in a top view, and have a size equal to each other or a combination of asymmetric rectangles.
- the pair of wing portions 10A are arranged at intervals in the long side direction.
- the wing portion 10A has conductivity and functions substantially as an antenna for transmitting and receiving electric signals to and from the outside.
- the wireless IC chip 2 is disposed between the pair of wings 10A, and the wing 10A and the wireless IC chip 2 are electrically connected. Thereby, the wireless IC chip 2 electrically connects the pair of wings 10A.
- the wireless IC chip 2 is disposed at one end of the mounting antenna unit 10 in the short side direction. The position of the wireless IC chip 2 with respect to the mounting antenna unit 10 can be arbitrarily changed.
- the size L (mm) of one side of the wing portion 10A in a top view satisfies the following expression (1).
- ⁇ indicates the wavelength (mm) of the radio wave used by the wireless IC chip 2.
- the wireless IC chip 2 uses radio waves of a frequency of 920 MHz, but radio waves of other frequencies may be used.
- the wavelength ⁇ of the radio wave used by the wireless IC chip 2 is 326 mm
- the size L of one side of the wing 10A is 20 mm.
- the first spacer portion 12 has a rectangular shape having a short side and a long side when viewed from above.
- the size of the short side of the first spacer section 12 is equal to the size of the short side of the mounting antenna section 10.
- the size of the long side of the first spacer section 12 is equal to the size of the long side of the mounting antenna section 10.
- the size of each of the short side and the long side of the first spacer unit 12 may be smaller or larger than the size of each of the short side and the long side of the mounting antenna unit 10.
- the thickness T (mm) of the first spacer portion 12 in the stacking direction satisfies the following expression (2).
- ⁇ indicates the wavelength (mm) of the radio wave used by the wireless IC chip 2.
- the wavelength ⁇ of the radio wave used by the wireless IC chip 2 is 326 mm
- the thickness T of the first spacer portion 12 in the stacking direction is 0.15 to 0.2 mm.
- the antenna body 11 includes an electrode 11A that is electrically coupled to the wing 10A of the mounted antenna 10, and a base material 11B that supports the electrode 11A.
- the electrode 11A and the base material 11B are arranged side by side in the laminating direction and are integrally formed.
- the antenna main body 11 has a rectangular shape having a short side and a long side when viewed from above.
- the size of the short side of the antenna main body 11 as viewed from above is the same as the size of the short side of the first spacer 12.
- the size of the long side of the antenna body 11 as viewed from above is larger than the size of the long side of the first spacer 12.
- the electrode 11A is bent such that a part thereof faces each other at intervals in the laminating direction.
- the electrodes 11A and the base material 11B are partially laminated in the stacking direction except for a central portion in the long side direction along the long side when viewed from the short side direction along the short side. Are bent so as to face each other at intervals.
- the electrode 11A and the base material 11B are formed in a loop shape opened in the short side direction in a front view, and are adhered to each other over the entire area. As shown in the figure, the electrode 11A is arranged on the outer peripheral side of the base material 11B when viewed from the front. The electrode 11A has a size corresponding to the frequency of a radio wave used by the wireless IC chip 2.
- a gap CL is formed between portions of the antenna body 11 that are opposed to each other in the stacking direction on the base material 11B arranged on the inner peripheral side.
- the size C1 of the gap CL in the stacking direction is about 500 to 1000 ⁇ m.
- the electrode 11A is formed of a 9 ⁇ m thick aluminum film
- the base material 11B is formed of a 50 ⁇ m thick PET resin film.
- the thickness of the adhesive layer for bonding the electrode 11A and the base material 11B is 5 ⁇ m.
- the aluminum film may be changed to another metal material, and the PET resin film may be changed to another resin material. Also, the thickness of each can be arbitrarily changed.
- the loop-shaped electrode 11A has a slit 11C formed between one end and the other end of the loop.
- a slit 11C extending in the short side direction is formed on the first spacer portion 12 side (upper side) in the stacking direction in the antenna body portion 11.
- the slit 11C extends over the entire area in the short side direction.
- the slit 11C is formed integrally with each of the electrode 11A and the base 11B.
- the size L1 of the slit 11C in the long side direction is about 1/50 to 1/100 of the size L2 of the antenna body 11 in the long side direction.
- the wireless IC chip 2 is disposed in a portion located above the slit 11C.
- a plurality of cutouts 11D are formed in the antenna body 11.
- the notch 11D is formed from the upper surface to the side surface of the antenna main body 11.
- the notch 11D integrally cuts off the electrode 11A and a part of the base 11B.
- the cutout portion 11D By forming the cutout portion 11D in this way, it is possible to make the path length of the current flowing portion of the electrode 11A longer than the configuration in which the cutout portion 11D is not formed. Thereby, the electromagnetic wave to be used can be set to a low frequency while the projected area of the antenna main body 11 is reduced. Note that the shape, size, and position of the notch 11D can be arbitrarily changed.
- the wireless communication board 3 includes a conductive reflective material 13 laminated on the opposite side of the mounting antenna unit 10 sandwiching the antenna main body 11 in the laminating direction, and a second reflective laminate between the antenna main body 11 and the reflective material 13. And two spacer portions 14.
- the reflector 13 is formed of a metal material. The size of the reflector 13 in a top view is equivalent to that of the antenna body 11. By arranging the reflecting material 13, it is possible to suppress a large change in the communication capability of the wireless IC chip 2 when the wireless communication board 3 is temporarily attached to a metal surface.
- the second spacer portion 14 is formed of PET resin and has an insulating property.
- the thickness of the second spacer section 14 is equal to the thickness of the first spacer section 12.
- the size of the second spacer portion 14 as viewed from above is the same as that of the reflective material 13. Since the second spacer portion 14 is interposed between the antenna main body 11 and the reflector 13, conduction between the antenna main body 11 and the reflector 13 can be suppressed.
- FIG. 3A the illustration of the reflection material 13 and the second spacer portion 14 is omitted.
- an electromagnetic wave emitted from a communication reader (not shown) is caught.
- the antenna main body 11 catches a magnetic field component generated by the electromagnetic wave and flowing in the short side direction.
- an electromagnetic wave passes through the inside of the loop-shaped antenna main body 11, so that electromagnetic induction occurs on the electrode 11 ⁇ / b> A of the antenna main body 11.
- a current flows through the electrode 11A.
- the wireless IC chip 2 When the wireless IC chip 2 is activated, the wireless IC chip 2 generates a current in order to output information held therein. As a result, as shown in FIG. 3D, a current flows in a direction opposite to the current flowing to the mounted antenna unit 10 at the time of startup. This current includes information held inside the wireless IC chip 2.
- the communication reader can read the information in the wireless IC chip 2 by reading the electromagnetic waves generated in this manner by the communication reader.
- the first antenna unit 10 on which the wireless IC chip 2 is mounted and the antenna body 11 on which the electrode 11A is arranged are disposed
- One spacer section 12 is stacked, and the wireless IC chip 2 and the electrode 11A are arranged as separate members.
- the mounting antenna unit 10 and the antenna body It is sufficient to change one of the parts of the unit 11, and it is not necessary to change the other part.
- the frequency band of the electromagnetic wave caught by the antenna main body 11 can be freely changed.
- the illustration of the reflection material 13 and the second spacer portion 14 is omitted.
- the electrode 11A is bent so that a part thereof faces each other with an interval in the stacking direction. Therefore, by forming a space surrounded by the electrode 11A as compared with a configuration in which the electrode 11A is formed in a plate shape, for example, electromagnetic induction is caused in the electrode 11A by an electromagnetic wave passing through the inside. be able to. As a result, the antenna output is ensured even for non-metallic objects (including those having a large amount of water such as a human body or a container containing water) whose communication has been unstable in the conventional RFID system, and stable communication is performed. be able to.
- the antenna main body 11 has a rectangular shape in a top view, and the electrode 11A is bent such that a part thereof faces each other with a space therebetween in the laminating direction except for a central portion in a long side direction. . Therefore, when the wireless communication tag 1 is attached to the surface of an object and used, for example, the electromagnetic wave colliding with the surface of the object and flowing in the short side direction along the surface is generated inside the antenna body 11. It becomes possible to catch, and communication stability can be effectively secured.
- the pair of wings 10A of the mounted antenna 10 have a rectangular shape in a top view, and the size L of one side thereof satisfies Expression (1). Therefore, even when the insulating first spacer portion 12 is laminated between the mounting antenna portion 10 and the antenna body portion 11, the degree of electrical coupling between the wireless IC chip 2 and the electrode 11A is reduced. As a result, the transfer of electric energy between the wireless IC chip 2 and the electrode 11A can be reliably realized.
- the thickness T of the first spacer portion 12 in the stacking direction satisfies the expression (2). Therefore, even when the insulating first spacer portion 12 is laminated between the mounting antenna portion 10 and the antenna body portion 11, the degree of electrical coupling between the wireless IC chip 2 and the electrode 11A is reduced. As a result, the transfer of electric energy between the wireless IC chip 2 and the electrode 11A can be reliably realized.
- the wireless communication board 3 includes the conductive reflector 13 and the second spacer 14 laminated between the antenna body 11 and the reflector 13. For this reason, when the wireless communication substrate 3 is attached to a metal surface, it is possible to suppress a large change in the communication capability of the wireless IC chip 2 as compared with, for example, a configuration in which the reflective material 13 is not provided. Thereby, the fluctuation of the communication capability of the wireless IC chip 2 can be suppressed, and the versatility can be secured without selecting the material of the surface to which the wireless communication substrate 3 is attached.
- the loop-shaped electrode 11A opened in the short side direction targets electromagnetic waves flowing in the short side direction. For this reason, even if the electromagnetic waves flowing in the stacking direction are reflected by the reflector 13, it is possible to suppress a decrease in the antenna output.
- FIGS. 6 and 9 the illustration of the reflector 13 and the second spacer portion 14 is omitted.
- a cutout 21D is formed only on the side surface of the antenna main body 21. Note that the notch may not be formed in the antenna main body 21.
- the position of the slit 31C in the electrode 31A of the antenna main body 31 is a side surface in a front view.
- the size of the slit 41C in the antenna main body 41 is larger than that in the first embodiment.
- the size of the slit 41C in the long side direction is about 70% of the size of the antenna body 41 in the long side direction.
- a slit 51C whose size in the long side direction is about 70% of the size of the antenna main body 51 is formed in a front view. It may be arranged on the lower side.
- the antenna main body 61 has a configuration other than the central portion in the short side direction when viewed from the side viewed from the long side direction. Some of them may be bent so as to face each other with an interval in the stacking direction. As illustrated, the electrode 61A is arranged on the outer peripheral side of the base material 61B in a side view.
- the antenna main body 61 mainly targets an electromagnetic wave flowing in the long side direction.
- the two antenna main bodies 71 and 72 are arranged so as to sandwich the mounted antenna 10 in the stacking direction.
- the first spacer portions 12 are separately arranged between the antenna body portions 71 and 72 and the mounted antenna portion 10.
- the two antenna main bodies 71 and 72 have different sizes in the long side direction.
- a configuration is shown in which the size of one side of the pair of wing portions 10A having a rectangular shape in a top view satisfies Expression (1), but is not limited thereto. .
- the size of one side of the pair of wings 10A does not have to satisfy Expression (1), and the wing 10A has a non-rectangular shape such as a circular shape or a triangular shape in a top view. Is also good.
- the configuration is described in which the thickness T of the first spacer portion 12 in the stacking direction satisfies the expression (2), but is not limited to such a mode.
- the thickness T of the first spacer portion 12 in the stacking direction does not have to satisfy the expression (2).
- the configuration in which the wireless communication board 3 includes the reflecting member 13 and the second spacer portion 14 has been described.
- the configuration is not limited to such an aspect.
- the wireless communication board 3 does not need to include the reflection member 13 and the second spacer portion 14.
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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)
- Aerials With Secondary Devices (AREA)
Abstract
L'invention concerne un substrat de communication sans fil qui comprend : une partie d'antenne montée conductrice sur laquelle est montée une puce de CI sans fil ; une partie de corps d'antenne sur laquelle est disposée une électrode qui forme un couplage de champ électrique avec la partie d'antenne montée, et qui est disposée dans la direction d'empilement par rapport à la partie d'antenne montée ; et une première partie d'espacement isolante qui est empilée entre la partie d'antenne montée et la partie de corps d'antenne
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2018554514A JP6476356B1 (ja) | 2018-09-21 | 2018-09-21 | 無線通信基板、および無線通信タグ |
| PCT/JP2018/035232 WO2020059154A1 (fr) | 2018-09-21 | 2018-09-21 | Substrat de communication sans fil et étiquette de communication sans fil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2018/035232 WO2020059154A1 (fr) | 2018-09-21 | 2018-09-21 | Substrat de communication sans fil et étiquette de communication sans fil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2020059154A1 true WO2020059154A1 (fr) | 2020-03-26 |
Family
ID=65516956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2018/035232 Ceased WO2020059154A1 (fr) | 2018-09-21 | 2018-09-21 | Substrat de communication sans fil et étiquette de communication sans fil |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6476356B1 (fr) |
| WO (1) | WO2020059154A1 (fr) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008123222A (ja) * | 2006-11-10 | 2008-05-29 | Hitachi Ltd | Rficタグとその使用方法 |
| JP2009135867A (ja) * | 2007-03-30 | 2009-06-18 | Nitta Ind Corp | 無線通信改善シート体、無線icタグ、アンテナおよびそれらを用いた無線通信システム |
| JP2011250406A (ja) * | 2010-05-28 | 2011-12-08 | China Steel Corp | 容量性負荷を有するrfidタグ |
| JP2014021705A (ja) * | 2012-07-18 | 2014-02-03 | Toppan Forms Co Ltd | 非接触通信媒体 |
| WO2016170750A1 (fr) * | 2015-04-21 | 2016-10-27 | 東洋製罐グループホールディングス株式会社 | Étiquette rf |
| JP2017158072A (ja) * | 2016-03-03 | 2017-09-07 | 株式会社フェニックスソリューション | Rfタグ用アタッチメント及びrfタグ |
| WO2018123432A1 (fr) * | 2016-12-30 | 2018-07-05 | 株式会社フェニックスソリューション | Antenne amplificatrice, unité de ci de communication équipée de l'antenne amplificatrice, et unité de ci de communication équipée de l'antenne amplificatrice à laquelle est relié un conducteur |
-
2018
- 2018-09-21 JP JP2018554514A patent/JP6476356B1/ja not_active Expired - Fee Related
- 2018-09-21 WO PCT/JP2018/035232 patent/WO2020059154A1/fr not_active Ceased
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008123222A (ja) * | 2006-11-10 | 2008-05-29 | Hitachi Ltd | Rficタグとその使用方法 |
| JP2009135867A (ja) * | 2007-03-30 | 2009-06-18 | Nitta Ind Corp | 無線通信改善シート体、無線icタグ、アンテナおよびそれらを用いた無線通信システム |
| JP2011250406A (ja) * | 2010-05-28 | 2011-12-08 | China Steel Corp | 容量性負荷を有するrfidタグ |
| JP2014021705A (ja) * | 2012-07-18 | 2014-02-03 | Toppan Forms Co Ltd | 非接触通信媒体 |
| WO2016170750A1 (fr) * | 2015-04-21 | 2016-10-27 | 東洋製罐グループホールディングス株式会社 | Étiquette rf |
| JP2017158072A (ja) * | 2016-03-03 | 2017-09-07 | 株式会社フェニックスソリューション | Rfタグ用アタッチメント及びrfタグ |
| WO2018123432A1 (fr) * | 2016-12-30 | 2018-07-05 | 株式会社フェニックスソリューション | Antenne amplificatrice, unité de ci de communication équipée de l'antenne amplificatrice, et unité de ci de communication équipée de l'antenne amplificatrice à laquelle est relié un conducteur |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6476356B1 (ja) | 2019-02-27 |
| JPWO2020059154A1 (ja) | 2020-12-17 |
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