EP2756547A1 - Rfid antenna - Google Patents

Rfid antenna

Info

Publication number
EP2756547A1
EP2756547A1 EP12766295.5A EP12766295A EP2756547A1 EP 2756547 A1 EP2756547 A1 EP 2756547A1 EP 12766295 A EP12766295 A EP 12766295A EP 2756547 A1 EP2756547 A1 EP 2756547A1
Authority
EP
European Patent Office
Prior art keywords
antenna
conductive layer
magnetic sheet
track
electrically conductive
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.)
Granted
Application number
EP12766295.5A
Other languages
German (de)
French (fr)
Other versions
EP2756547B1 (en
Inventor
Christophe Mathieu
Yean Wei Yeap
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.)
Linxens Holding SAS
Original Assignee
Linxens Holding SAS
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 Linxens Holding SAS filed Critical Linxens Holding SAS
Publication of EP2756547A1 publication Critical patent/EP2756547A1/en
Application granted granted Critical
Publication of EP2756547B1 publication Critical patent/EP2756547B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/2208—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems
    • H01Q1/2225—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems used in active tags, i.e. provided with its own power source or in passive tags, i.e. deriving power from RF signal
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
    • H01Q7/06—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop with core of ferromagnetic material

Definitions

  • the invention relates to a method for manufacturing an antenna and to an antenna obtainable by the method.
  • a tag having an RFID antenna to identify and monitor objects is well known in the art.
  • a tag comprises for instance an antenna circuit formed with conductive tracks which is electrically connected to an integrated circuit (IC) chip that includes a memory. It uses electromagnetic field produced by an RFID reader. If such a tag enters the magnetic field for a sufficient time, the RFID antenna will become energized and the electronic circuit can transmit a signal towards the reader or a separate receiving antenna.
  • IC integrated circuit
  • Such a mode for contactless communication between an IC tag and a reader/writer is expected to become more diversified in the future.
  • portable communication terminals such as mobile phones will be equipped with a tag function and a reader/writer function.
  • the mobile phone can be used to pay train fares by holding the phone up against the station gate.
  • the antenna also has to meet space consumption requirement, in particular the antenna should have a thickness as thin as possible and should be as easy as possible to manufacture and is compatible with mass production specification. Thickness issue is particularly important when the antenna is intended to be cased in a mobile phone, especially new generation of slim smart phones, where space is quite limited .
  • An object of the present invention is to provide a method for manufacturing an antenna of reduced thickness and cost and which is operative when it is mounted on a metallic device and/or placed in an environment surrounded by electromagnetic fields.
  • Fig.l shows a first embodiment of an antenna according to the invention
  • Fig.2 shows a second embodiment of an antenna according to the invention
  • Fig.3 shows a cross-sectional view of the antenna of along the arrow of Fig. 2.
  • Fig.l show a first embodiment of a planar RFID antenna which comprises a supporting substrate 2 on which an electrically conductive track 4 has been formed.
  • the substrate 2 is, in the context of the invention, made of a magnetic flexible sheet which comprises magnetic particles (such as a powder or a flake of magnetic ferrite) dispersed in a resin binder.
  • An example of such a ferrite sheet is Liqualloy (TM) Flexible Film sold by Alps Electric Co., LTD.
  • TM Liqualloy
  • Such type of ferrite sheets are also easily available by ferrite material suppliers, such as for example Japanese ferrite material suppliers.
  • the conductive track has been directly formed on a first main surface of the ferrite sheet, such that the conductive track extends in a plane parallel to the first main surface.
  • the conductive track is for instance made of copper.
  • the antenna track comprises a plurality of turns (here there are four turns) in the form of a spiral.
  • the outer turns comprises a connection end which is connected to a connection end of the inner turn via an electrical bridge.
  • the method will be advantageously chosen such that it can be carried out via a reel-to-reel process, which allows high production rate.
  • Methods particularly adapted for reel-to-reel implementation are the first three above-mentioned methods.
  • the antenna track can be designed such that its resonance frequency lies in the range of 13.56 MHz in order to meet, for instance NFC specification.
  • Fig. 2 represents a second embodiment of the antenna and differs from the first one in that the two connection ends of the antenna conductive track are not bridged.
  • Fig. 3 which is a cross-sectional view in a line A-A of Fig. 2, one may observe that the copper ferrite laminate is provided with two blind holes, located at the level of the two antenna connection ends. These blind holes provide an easy access for electrically connecting the antenna to a device.
  • the antenna connection ends may be mechanically embossed for getting a reliable electrical connection with the device.
  • the process comprises:
  • step g) one may proceed with an additional plating step on the exposed copper track and on the bottom surface of the blind holes, for instance with a nickel and gold coating; alternatively one may carry out passivation step of the antenna tracks for corrosion protection .
  • steps b) and d) to g) can be replaced by printing techniques, as described e.g. in US 7,060,418 which is incorporated by reference.
  • the applicant has then succeeded in obtaining antennas of thickness ranging between 150 to 200ym with a layered structure as schematically drawn in Fig. 4.
  • the layered structure so called single-sided with blind holes comprises the ferrite sheet, an adhesive layer on top of the first surface of the ferrite sheet and eventually a laminated copper layer.
  • the ferrite sheet, the adhesive layer and the conductive track thicknesses are about lOOym, 20ym and 35ym, respectively.
  • a second sheet of magnetic material is placed on a second surface of the above described composite magnetic sheet, i.e. on an opposite surface of the first magnetic sheet to the surface onto which the conductive track is formed or to be formed.
  • two types of ferrite materials are used for the first and second sheet.
  • the first sheet is preferably chosen with a value of the imaginary part ⁇ ' ' of the permeability which is lower than 5 H/m. "lower” will be understood as “lower or equal”. Due to low value of ⁇ ' ' of such a composite ferrite material which is typically polymer based, this first magnetic sheet will typically have a value of the real part ] ' of the permeability which is low i.e. a value which is between 40 and 50 H/m.
  • ⁇ ' ' allows to minimize ohmic loss of the eventually realised antenna.
  • the second sheet of ferrite material is chosen with a high value of ⁇ ' , i.e. a value higher than 100 H/m. "Higher” will be understood as “higher or equal”. The choice of the value of ⁇ ' ' is not important.
  • a second sheet of ferrite material with such a high value of ⁇ ' allows to obtain an antenna with an enhanced quality factor Q.
  • Such a second magnetic sheet can be made of a composite material including magnetic particles and a synthetic resin, a sintered type of magnetic material or can be a plain ferrite sheet.
  • the obtained antenna has excellent behaviour in particular as to reduced ohmic loss and quality factor Q.
  • Such first and second magnetic sheets are in particular easily available by ferrite material suppliers, such as for example Japanese ferrite material suppliers.
  • the layered structure usually comprises:
  • a dielectric substrate e.g. epoxy glass or PET or polyimide
  • Main limitations of the known antenna structure are the high total thickness and the high distance between antenna conductive tracks and the ferrite sheet.

Landscapes

  • Details Of Aerials (AREA)

Abstract

The present invention relates to a method for manufacturing an antenna which comprises the following steps : • providing a magnetic sheet made of composite material including magnetic particles and a synthetic resin, said magnetic sheet having a first surface; • forming directly on the first surface of the magnetic sheet an electrically conductive planar track having at least one turn.

Description

RFID ANTENNA
Field of the invention
The invention relates to a method for manufacturing an antenna and to an antenna obtainable by the method.
Description of prior art
The use of a tag having an RFID antenna to identify and monitor objects is well known in the art. Such a tag comprises for instance an antenna circuit formed with conductive tracks which is electrically connected to an integrated circuit (IC) chip that includes a memory. It uses electromagnetic field produced by an RFID reader. If such a tag enters the magnetic field for a sufficient time, the RFID antenna will become energized and the electronic circuit can transmit a signal towards the reader or a separate receiving antenna.
Such a mode for contactless communication between an IC tag and a reader/writer is expected to become more diversified in the future. For example, in order to further increase the level of convenience, portable communication terminals, such as mobile phones will be equipped with a tag function and a reader/writer function.
For example, by providing a mobile phone with a tag function, the mobile phone can be used to pay train fares by holding the phone up against the station gate.
In recent RFID systems (e.g. NFC standard) that operate at a frequency of 13.56 MHz, a proper operating environment is required. For example, with regard to communication properties, a longer communication distance is desired, or if the reader/writer and the IC tag are opposed to each other, a wide planar communication range is desired . However when such a tag is mounted on an article whose surface is made of conductive material or is located in an environment surrounded by electromagnetic fields, e.g. in a phone casing or over the battery, the resonance frequency of the antenna is shifted with respect to the nominal resonance frequency. This shifting of resonance frequency affects the information exchange between the transponder and the reader/writer device and even results in no communication at all (de-tuning of the whole RFID system) .
Furthermore, to be applicable, such antenna also has to meet space consumption requirement, in particular the antenna should have a thickness as thin as possible and should be as easy as possible to manufacture and is compatible with mass production specification. Thickness issue is particularly important when the antenna is intended to be cased in a mobile phone, especially new generation of slim smart phones, where space is quite limited .
Summary of the invention
An object of the present invention is to provide a method for manufacturing an antenna of reduced thickness and cost and which is operative when it is mounted on a metallic device and/or placed in an environment surrounded by electromagnetic fields.
To this end, it is provided a method according to claim 1.
Indeed with the claimed features, it is possible to make a reduced thickness (as low as 150 ym) antenna since the antenna conductive track is directly formed onto the ferrite sheet which acts as a supporting substrate in addition to its primary function as a shielding member. Thus, it is not necessary to make use of any additional intermediate supporting substrate for the antenna and therefore this also helps reduce manufacturing tolerance stack .
Short description of the drawings
These and further aspects of the invention will be explained in greater detail by way of example and with reference to the accompanying drawings, in which:
Fig.l shows a first embodiment of an antenna according to the invention;
Fig.2 shows a second embodiment of an antenna according to the invention;
Fig.3 shows a cross-sectional view of the antenna of along the arrow of Fig. 2.
The figures are not drawn to scale. Generally, identical components are denoted by the same reference numerals in the figures.
Detailed description of preferred embodiments
Fig.l show a first embodiment of a planar RFID antenna which comprises a supporting substrate 2 on which an electrically conductive track 4 has been formed. The substrate 2 is, in the context of the invention, made of a magnetic flexible sheet which comprises magnetic particles (such as a powder or a flake of magnetic ferrite) dispersed in a resin binder. An example of such a ferrite sheet is Liqualloy(TM) Flexible Film sold by Alps Electric Co., LTD. Such type of ferrite sheets are also easily available by ferrite material suppliers, such as for example Japanese ferrite material suppliers. The conductive track has been directly formed on a first main surface of the ferrite sheet, such that the conductive track extends in a plane parallel to the first main surface. The conductive track is for instance made of copper. As visible on Fig.l, the antenna track comprises a plurality of turns (here there are four turns) in the form of a spiral. The outer turns comprises a connection end which is connected to a connection end of the inner turn via an electrical bridge.
In the context of the invention, the verb "form" and its conjugations encompass the non-exhaustive below-listed methods :
• lamination of a conductive foil and selective chemical etching of the conductive foil after selective masking of the conductive foil, with e.g. a photo resist resin;
• lamination of a conductive foil already patterned by mechanical stamping;
• screen or gravure or inkjet or offset printing of an electrically conductive ink;
• laying a conductive wire onto the first surface of the magnetic sheet;
• chemical vapour deposition of electrically conductive particles .
From manufacturing standpoint, the method will be advantageously chosen such that it can be carried out via a reel-to-reel process, which allows high production rate. Methods particularly adapted for reel-to-reel implementation are the first three above-mentioned methods.
The antenna track can be designed such that its resonance frequency lies in the range of 13.56 MHz in order to meet, for instance NFC specification. In order to tune the inductance, one may vary the distance gap between two adjacent turns and/or the width of each turn and/or the number of turns.
Fig. 2 represents a second embodiment of the antenna and differs from the first one in that the two connection ends of the antenna conductive track are not bridged.
With reference of Fig. 3, which is a cross-sectional view in a line A-A of Fig. 2, one may observe that the copper ferrite laminate is provided with two blind holes, located at the level of the two antenna connection ends. These blind holes provide an easy access for electrically connecting the antenna to a device. The antenna connection ends may be mechanically embossed for getting a reliable electrical connection with the device.
Now it will be described a preferred process for manufacturing an antenna according to the second embodiment .
The process comprises:
a) providing a ferrite sheet;
b) applying an adhesive layer on a first surface of the ferrite sheet;
c) punching two through-holes in the ferrite sheet ;
d) laminating a copper foil onto the adhesive layer;
e) masking the copper layer with a masking material so as to define the antenna pattern;
f) removing the un-masked area of the copper foil;
g) removing the masking material so as to expose the copper track.
Optionally, after step g) , one may proceed with an additional plating step on the exposed copper track and on the bottom surface of the blind holes, for instance with a nickel and gold coating; alternatively one may carry out passivation step of the antenna tracks for corrosion protection .
Alternatively, steps b) and d) to g) can be replaced by printing techniques, as described e.g. in US 7,060,418 which is incorporated by reference.
The applicant has then succeeded in obtaining antennas of thickness ranging between 150 to 200ym with a layered structure as schematically drawn in Fig. 4.
The layered structure so called single-sided with blind holes comprises the ferrite sheet, an adhesive layer on top of the first surface of the ferrite sheet and eventually a laminated copper layer. Typically the ferrite sheet, the adhesive layer and the conductive track thicknesses are about lOOym, 20ym and 35ym, respectively.
Optionally, a second sheet of magnetic material is placed on a second surface of the above described composite magnetic sheet, i.e. on an opposite surface of the first magnetic sheet to the surface onto which the conductive track is formed or to be formed.
In this embodiment of the invention two types of ferrite materials are used for the first and second sheet.
The first sheet is preferably chosen with a value of the imaginary part μ' ' of the permeability which is lower than 5 H/m. "lower" will be understood as "lower or equal". Due to low value of μ' ' of such a composite ferrite material which is typically polymer based, this first magnetic sheet will typically have a value of the real part ] ' of the permeability which is low i.e. a value which is between 40 and 50 H/m.
Such a low value of μ' ' allows to minimize ohmic loss of the eventually realised antenna. The second sheet of ferrite material is chosen with a high value of μ' , i.e. a value higher than 100 H/m. "Higher" will be understood as "higher or equal". The choice of the value of μ' ' is not important.
A second sheet of ferrite material with such a high value of μ' allows to obtain an antenna with an enhanced quality factor Q.
Such a second magnetic sheet can be made of a composite material including magnetic particles and a synthetic resin, a sintered type of magnetic material or can be a plain ferrite sheet.
By using a combination of such first and second magnetic sheets the obtained antenna has excellent behaviour in particular as to reduced ohmic loss and quality factor Q.
Such first and second magnetic sheets are in particular easily available by ferrite material suppliers, such as for example Japanese ferrite material suppliers.
In known antenna structure, the layered structure usually comprises:
• a dielectric substrate (e.g. epoxy glass or PET or polyimide) ;
• electrically conductive tracks formed on a first surface of the dielectric substrate;
· a ferrite sheet laminated on the opposite side second surface of the dielectric substrate.
Main limitations of the known antenna structure are the high total thickness and the high distance between antenna conductive tracks and the ferrite sheet.
Although the described embodiments relate to a single sided antenna, the skilled person in the art may conceive that it is also possible to manufacture double sided antenna with conductive holes according to the above- described method .

Claims

Claims
1. Method for manufacturing an antenna comprising the following steps:
· providing a magnetic sheet made of composite material including magnetic particles and a synthetic resin, said magnetic sheet having a first surface;
• forming directly on the first surface of the magnetic sheet an electrically conductive antenna track having at least one turn.
2. Method according to claim 1, wherein the step of forming the antenna conductive track includes the following steps :
• applying an electrically conductive layer on the first surface so as the conductive layer adheres to the first surface;
• applying a masking pattern on the electrically conductive layer to selectively protect the conductive layer;
· chemically etching the electrically conductive layer so as to remove the un-protected conductive layer; and
• removing the masking pattern to expose the conductive track .
3. Method according to claim 2, further comprising a step of plating or passivating the exposed conductive track .
4. Method according to claim 1, wherein the step of forming the antenna track includes the step of:
• applying an electrically conductive patterned layer on the first surface so as the patterned conductive layer adheres to the first surface.
5. Method according to any one of preceding claims, wherein the electrically conductive layer is selected from copper, silver, aluminium, palladium and graphite.
6. Method according to any one of preceding claims, wherein the application of the conductive layer is carried out by laminating the conductive layer on the first surface of the ferrite sheet.
7. Method according to claim 1, wherein the step of forming the antenna conductive track comprises the following step:
• applying an electrically conductive ink to provide the antenna conductive track.
8. Method according to claim 7, further comprising the step of plating the circuit track pattern with an electrically conductive coating.
9. Method according to claims 7 or 8, wherein the conductive ink is applied by screen or gravure or inkjet or offset printing.
10. Method according to claim 1, wherein the step of forming the antenna conductive track comprises the step of mounting a metallic wire onto the first surface of the magnetic sheet.
11. Method according to anyone of the preceding claims, wherein it comprises the step of placing a second magnetic sheet on a second surface of said magnetic sheet made of composite material including magnetic particles and a synthetic resin, said second surface being opposite to said first surface, the said magnetic sheet made of composite material including magnetic particles and a synthetic resin having a permeability with a value of imaginary part μ' ' which is lower than 5 H/m and the said second magnetic sheet having a permeability with a real part μ' which is higher than 100 H/m.
12. An antenna obtainable by a process according any one of preceding claims.
EP12766295.5A 2011-09-14 2012-09-11 Rfid antenna Active EP2756547B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
MYPI2011004370A MY166125A (en) 2011-09-14 2011-09-14 Rfid antenna
PCT/EP2012/067718 WO2013037762A1 (en) 2011-09-14 2012-09-11 Rfid antenna

Publications (2)

Publication Number Publication Date
EP2756547A1 true EP2756547A1 (en) 2014-07-23
EP2756547B1 EP2756547B1 (en) 2023-02-22

Family

ID=46939696

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12766295.5A Active EP2756547B1 (en) 2011-09-14 2012-09-11 Rfid antenna

Country Status (6)

Country Link
EP (1) EP2756547B1 (en)
JP (2) JP6095070B2 (en)
KR (1) KR20140060358A (en)
CN (2) CN108695595A (en)
MY (1) MY166125A (en)
WO (1) WO2013037762A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103746181B (en) * 2013-12-31 2017-06-13 瑞声科技(沭阳)有限公司 NFC antenna and preparation method thereof
CN105098365B (en) * 2014-05-14 2018-08-10 3M创新有限公司 Near-field communication module
CN105633583A (en) * 2014-10-28 2016-06-01 林小群 Near-field communication module and manufacture method thereof
DE102015009319A1 (en) * 2015-07-17 2017-01-19 Saurer Germany Gmbh & Co. Kg Transport system for spinning cops and method for operating the transport system
CN106650889A (en) * 2016-11-22 2017-05-10 武汉大学 Near field communication label integrated with magnetic composite membrane, and preparation method thereof
JP7344003B2 (en) * 2018-04-24 2023-09-13 京セラ株式会社 RFID tags and RFID systems
JP7190694B2 (en) 2018-12-06 2022-12-16 株式会社マルアイ Manufacturing method of conductive pattern for RFID

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070234553A1 (en) * 2006-04-10 2007-10-11 Checkpoint Systems, Inc. Process for making UHF antennas for EAS and RFID tags and antennas made thereby
EP2001078A1 (en) * 2007-05-25 2008-12-10 Laird Technologies AB An antenna device and a portable radio communication device comprising such an antenna device
EP2302567A1 (en) * 2009-09-17 2011-03-30 Nxp B.V. Surface-tolerant RFID transponder device

Family Cites Families (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5318820A (en) * 1992-09-24 1994-06-07 Hughes Aircraft Company HTCC/LTCC use of multiple ceramic tapes in high rate production
JPH08216573A (en) * 1995-02-09 1996-08-27 Hitachi Chem Co Ltd Ic card
JPH10149416A (en) * 1996-11-18 1998-06-02 Omron Corp Data carrier and data reader therefor
US6407706B2 (en) * 1998-06-17 2002-06-18 Peter J. Vernon Planar antenna device
FR2825228B1 (en) 2001-05-25 2003-09-19 Framatome Connectors Int METHOD FOR MANUFACTURING A PRINTED CIRCUIT AND PLANAR ANTENNA MANUFACTURED THEREWITH
US6701605B2 (en) * 2001-10-09 2004-03-09 Sonoco Development, Inc. Conductive electrical element and antenna with ink additive technology
JP2004021814A (en) * 2002-06-19 2004-01-22 Konica Minolta Holdings Inc Ic card and creation method therefor
JP2004242245A (en) * 2003-02-10 2004-08-26 Minerva:Kk Booster antenna for ic tag
ATE474441T1 (en) * 2003-03-05 2010-07-15 Intune Circuits Oy METHOD FOR PRODUCING AN ELECTRICALLY CONDUCTIVE STRUCTURE
JP2005093867A (en) * 2003-09-19 2005-04-07 Seiko Epson Corp Semiconductor device and method of manufacturing same
JP2005094653A (en) * 2003-09-19 2005-04-07 Kyocera Corp Micro-antenna frequency adjusting method and micro-antenna resulting therefrom
JP2005142984A (en) * 2003-11-10 2005-06-02 Shin Etsu Polymer Co Ltd Translucent antenna
JP2006039659A (en) * 2004-07-22 2006-02-09 Dainippon Printing Co Ltd Method and device for mounting noncontact data carrier member
DE602005003757T2 (en) * 2004-11-01 2008-12-11 Asahi Glass Co., Ltd. Laminated glass with embedded antenna and method of making the same
EP1826710A4 (en) * 2004-12-20 2009-06-17 Toppan Forms Co Ltd Noncontact data receiver/transmitter
EP1724708B1 (en) * 2005-04-26 2016-02-24 Amotech Co., Ltd. Magnetic sheet for radio frequency identification antenna, method of manufacturing the same.
US7315248B2 (en) * 2005-05-13 2008-01-01 3M Innovative Properties Company Radio frequency identification tags for use on metal or other conductive objects
JP2007151068A (en) * 2005-10-27 2007-06-14 Sumitomo Metal Mining Co Ltd Film antenna wiring base material, its manufacturing method, film antenna using the same and film antenna for automobile
JP4899446B2 (en) * 2005-11-24 2012-03-21 Ｔｄｋ株式会社 Composite electronic component and manufacturing method thereof
US8025237B2 (en) * 2006-01-20 2011-09-27 Panasonic Corporation Antenna built-in module, card type information device, and methods for manufacturing them
US7642916B2 (en) * 2006-03-23 2010-01-05 Xerox Corporation RFID bridge antenna
JP4917484B2 (en) * 2006-06-16 2012-04-18 ニッタ株式会社 Magnetic sheet, antenna device using the same, and electronic information transmission device
JP2008042761A (en) * 2006-08-09 2008-02-21 Toshiba Corp Antenna system
WO2008020574A1 (en) * 2006-08-14 2008-02-21 Tyco Electronics Raychem K.K. Antenna element and method for manufacturing same
JP2008153925A (en) * 2006-12-18 2008-07-03 Alps Electric Co Ltd Antenna sheet and its manufacturing method
JP2008219614A (en) * 2007-03-06 2008-09-18 Sony Corp Antenna and electronic device
KR101187172B1 (en) * 2007-03-07 2012-09-28 도다 고교 가부시끼가이샤 Ferrite Molded Sheet, Sintered Ferrite Substrate and Antenna Module
JP2008269161A (en) * 2007-04-18 2008-11-06 Toyo Aluminium Kk Antenna circuit structure for ic card and tag, and method for manufacturing the same
JP2011029678A (en) * 2007-11-20 2011-02-10 Tyco Electronics Raychem Kk Antenna element and method for manufacturing the same
CN101271996B (en) * 2008-04-02 2013-02-06 中国乐凯胶片集团公司 Radio frequency recognizing electronic label antenna and method for producing the same
JP2009251974A (en) * 2008-04-08 2009-10-29 Hitachi Ltd Rfid tag and method for manufacturing the same
CN101308953A (en) * 2008-07-04 2008-11-19 汤献维 Special membrane and method for manufacturing radio-frequency label antenna
KR20100098272A (en) * 2009-02-27 2010-09-06 이봉수 A packaging box
JP5282898B2 (en) * 2009-03-13 2013-09-04 日本電気株式会社 Antenna device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070234553A1 (en) * 2006-04-10 2007-10-11 Checkpoint Systems, Inc. Process for making UHF antennas for EAS and RFID tags and antennas made thereby
EP2001078A1 (en) * 2007-05-25 2008-12-10 Laird Technologies AB An antenna device and a portable radio communication device comprising such an antenna device
EP2302567A1 (en) * 2009-09-17 2011-03-30 Nxp B.V. Surface-tolerant RFID transponder device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2013037762A1 *

Also Published As

Publication number Publication date
JP2014527375A (en) 2014-10-09
MY166125A (en) 2018-05-24
CN108695595A (en) 2018-10-23
WO2013037762A1 (en) 2013-03-21
CN103947040A (en) 2014-07-23
JP6126188B2 (en) 2017-05-10
EP2756547B1 (en) 2023-02-22
JP2016034151A (en) 2016-03-10
KR20140060358A (en) 2014-05-19
JP6095070B2 (en) 2017-03-15

Similar Documents

Publication Publication Date Title
EP2756547B1 (en) Rfid antenna
KR101719902B1 (en) Antenna device and manufacturing method thereof
KR102175375B1 (en) Attractor for a wireless charging receiver module and a wireless charging receiver module having the same
EP2040334B1 (en) Antenna device
US7967216B2 (en) Wireless IC device
JP5174424B2 (en) Antenna circuit, resistance reduction method thereof, and transponder
KR101048336B1 (en) Antenna-embedded module and card type information device and manufacturing method thereof
US8284117B2 (en) Antenna device and method of manufacturing the same
US20100182144A1 (en) Rfid magnetic sheet, noncontact ic card and portable mobile communication apparatus
US10923802B2 (en) Near field communication antenna module and portable terminal having the same
JP5472550B2 (en) Magnetic antenna, antenna device and electronic apparatus
CN104871366A (en) Antenna module for portable terminal and portable terminal comprising same
US10476147B2 (en) Antenna device and method of manufacturing the same
US20160056536A1 (en) Electromagnetic Wave Absorbing Sheet and Antenna Module Having Same
US20190348203A1 (en) Combined coil module and magnetic sheet
KR20090043077A (en) Antenna for radio frequency identification and method of manufacturing the same
CN109713451B (en) Antenna device and portable terminal including the same
JP2010028351A (en) Booster antenna and contactless information medium
KR101444905B1 (en) Antenna for near field communication
JP2016504647A (en) Method for manufacturing a connector for a chip card module, a chip card connector obtained by this method, and a chip card module comprising such a connector
KR101320873B1 (en) Munufacturing method of nfc antenna and nfc antenna manufactured by thereof
KR100735618B1 (en) Antenna for radio frequency identification and method of manufacturing the same
JP5746543B2 (en) Non-contact communication medium
JP2015106331A (en) Dual ic card

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20140318

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAX Request for extension of the european patent (deleted)
17Q First examination report despatched

Effective date: 20160926

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20220307

GRAJ Information related to disapproval of communication of intention to grant by the applicant or resumption of examination proceedings by the epo deleted

Free format text: ORIGINAL CODE: EPIDOSDIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

INTC Intention to grant announced (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20220915

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602012079302

Country of ref document: DE

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1550107

Country of ref document: AT

Kind code of ref document: T

Effective date: 20230315

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: NL

Ref legal event code: FP

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230425

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1550107

Country of ref document: AT

Kind code of ref document: T

Effective date: 20230222

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230222

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230622

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230522

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230222

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230222

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230222

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230222

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230222

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230222

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230222

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230622

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230523

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230222

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230222

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230222

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230222

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230222

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230222

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602012079302

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230222

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20231123

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230222

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230911

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20230930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230911

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230222

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20230222

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230911

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230911

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20230930

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20240919

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20240923

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20240930

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20240920

Year of fee payment: 13