GB0521945D0 - Electromagnetic radiation decoupler - Google Patents

Electromagnetic radiation decoupler

Info

Publication number
GB0521945D0
GB0521945D0 GBGB0521945.6A GB0521945A GB0521945D0 GB 0521945 D0 GB0521945 D0 GB 0521945D0 GB 0521945 A GB0521945 A GB 0521945A GB 0521945 D0 GB0521945 D0 GB 0521945D0
Authority
GB
United Kingdom
Prior art keywords
tag
layer
decoupler
slit
wavelength
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.)
Withdrawn
Application number
GBGB0521945.6A
Other versions
GB2428939A (en
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.)
Qinetiq Ltd
Original Assignee
Qinetiq 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
Priority claimed from GB0512988A external-priority patent/GB0512988D0/en
Priority claimed from GB0518152A external-priority patent/GB0518152D0/en
Application filed by Qinetiq Ltd filed Critical Qinetiq Ltd
Publication of GB0521945D0 publication Critical patent/GB0521945D0/en
Priority to GB0603542A priority Critical patent/GB2429878B/en
Priority to KR1020087002141A priority patent/KR101312099B1/en
Priority to CA002656082A priority patent/CA2656082A1/en
Priority to EP06755615A priority patent/EP1907991B1/en
Priority to CN200680029833.4A priority patent/CN101248445B/en
Priority to AT06755615T priority patent/ATE549696T1/en
Priority to PCT/GB2006/002327 priority patent/WO2007000578A2/en
Priority to JP2008517600A priority patent/JP5148487B2/en
Priority to TW095122665A priority patent/TWI402756B/en
Priority to US11/474,082 priority patent/US7768400B2/en
Publication of GB2428939A publication Critical patent/GB2428939A/en
Priority to US12/823,299 priority patent/US8299927B2/en
Priority to US13/630,614 priority patent/US9104952B2/en
Priority to US14/751,998 priority patent/US9646241B2/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • 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
    • G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • 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
    • G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
    • G06K19/07771—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card the record carrier comprising means for minimising adverse effects on the data communication capability of the record carrier, e.g. minimising Eddy currents induced in a proximate metal or otherwise electromagnetically interfering object
    • 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
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
    • H01Q1/526—Electromagnetic shields
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
    • H01Q9/26—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole with folded element or elements, the folded parts being spaced apart a small fraction of operating wavelength

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Details Of Aerials (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
  • Aerials With Secondary Devices (AREA)
  • Burglar Alarm Systems (AREA)
  • Braking Arrangements (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

An RF tag 24 is mounted on a radiation decoupler that isolates the tag from the effect of an object that it is mounted upon. The decoupler comprises a dielectric layer 25 sandwiched between two conducting layers 21, 23. Conducting layer 21 is absent from a portion 22 of the dielectric layer, forming for example a slit 22. RF tag 24 is mounted so that its chip lies over the centre of slit 22. A spacer 26, bonding adhesive layer 25 and sensitising layer 27 may also be included. The slit is dimensioned according to the wavelength of the interrogating radiation used with the tag, but is generally of sub-wavelength dimensions. The decoupler is particularly useful when the RFID tag must be mounted on a metal object. The lower conductor layer 23 may be omitted in this case. Alternatively, decoupling can be achieved by mounting the RF tag orthogonally to the edge of a metal clad circuit board.
GB0521945A 2005-06-25 2005-10-28 Electromagnetic radiation decoupler for an RF tag Withdrawn GB2428939A (en)

Priority Applications (13)

Application Number Priority Date Filing Date Title
GB0603542A GB2429878B (en) 2005-06-25 2006-02-23 Electromagnetic radiation decoupler
AT06755615T ATE549696T1 (en) 2005-06-25 2006-06-22 DECOUPLER FOR ELECTROMAGNETIC RADIATION
PCT/GB2006/002327 WO2007000578A2 (en) 2005-06-25 2006-06-22 Electromagnetic radiation decoupler
CA002656082A CA2656082A1 (en) 2005-06-25 2006-06-22 Electromagnetic radiation decoupler
CN200680029833.4A CN101248445B (en) 2005-06-25 2006-06-22 Electromagnetic radiation decoupler
JP2008517600A JP5148487B2 (en) 2005-06-25 2006-06-22 Electromagnetic radiation decoupler
EP06755615A EP1907991B1 (en) 2005-06-25 2006-06-22 Electromagnetic radiation decoupler
KR1020087002141A KR101312099B1 (en) 2005-06-25 2006-06-22 Electromagnetic Radiation Decoupler
TW095122665A TWI402756B (en) 2005-06-25 2006-06-23 Electromagnetic radiation decoupler, method of making a cardboard decoupler, method of tracking a body or a container, a kit of parts for identification and tracking and method of forming a decoupler
US11/474,082 US7768400B2 (en) 2005-06-25 2006-06-23 Electromagnetic radiation decoupler
US12/823,299 US8299927B2 (en) 2005-06-25 2010-06-25 Electromagnetic radiation decoupler
US13/630,614 US9104952B2 (en) 2005-06-25 2012-09-28 Electromagnetic radiation decoupler
US14/751,998 US9646241B2 (en) 2005-06-25 2015-06-26 Electromagnetic radiation decoupler

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0512988A GB0512988D0 (en) 2005-06-25 2005-06-25 Electromagnetic radiation decoupler
GB0518152A GB0518152D0 (en) 2005-09-07 2005-09-07 Electromagnetic radiation decoupler

Publications (2)

Publication Number Publication Date
GB0521945D0 true GB0521945D0 (en) 2005-12-07
GB2428939A GB2428939A (en) 2007-02-07

Family

ID=35515849

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0521945A Withdrawn GB2428939A (en) 2005-06-25 2005-10-28 Electromagnetic radiation decoupler for an RF tag

Country Status (6)

Country Link
JP (1) JP5148487B2 (en)
KR (1) KR101312099B1 (en)
AT (1) ATE549696T1 (en)
CA (1) CA2656082A1 (en)
GB (1) GB2428939A (en)
TW (1) TWI402756B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110320602A (en) * 2018-03-30 2019-10-11 住友大阪水泥股份有限公司 Positioning member and the polarized combination module for having used the positioning member

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007000578A2 (en) 2005-06-25 2007-01-04 Omni-Id Limited Electromagnetic radiation decoupler
GB0611983D0 (en) 2006-06-16 2006-07-26 Qinetiq Ltd Electromagnetic radiation decoupler
GB0624915D0 (en) 2006-12-14 2007-01-24 Qinetiq Ltd Switchable radiation decoupling
GB0625342D0 (en) 2006-12-20 2007-01-24 Qinetiq Ltd Radiation decoupling
TW200919327A (en) * 2007-10-29 2009-05-01 China Steel Corp Three-dimensional wireless identification label adhered onto metal
US8794533B2 (en) 2008-08-20 2014-08-05 Omni-Id Cayman Limited One and two-part printable EM tags
EP2333975A4 (en) * 2008-09-30 2013-12-04 Nitta Corp Wireless communication improving sheet body, ic tag for wireless communication, method for manufacturing ic tag for wireless communication, information transmitting medium, and wireless communication system
KR101074596B1 (en) 2009-03-10 2011-10-17 엘에스산전 주식회사 Rfid tag for metallic materials
US8439272B2 (en) * 2010-11-15 2013-05-14 Neoid Limited Resonant circuit structure and RF tag having same
FR2984567A1 (en) * 2011-12-15 2013-06-21 Commissariat Energie Atomique High frequency radio frequency identification transponder for identification of e.g. food substance, has impermeable layer with specific thickness, so that relative variation of capacity of antenna circuit is below specific percent

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3002252B2 (en) * 1990-11-05 2000-01-24 株式会社東芝 Planar antenna
US5557279A (en) * 1993-09-28 1996-09-17 Texas Instruments Incorporated Unitarily-tuned transponder/shield assembly
JP3293554B2 (en) * 1997-09-12 2002-06-17 三菱マテリアル株式会社 Anti-theft tag
ES2246759T3 (en) * 1999-02-09 2006-03-01 Magnus Granhed ENCAPSULATED ANTENNA FOR PASSIVE TRANSPONDOR.
US6552696B1 (en) * 2000-03-29 2003-04-22 Hrl Laboratories, Llc Electronically tunable reflector
US6483481B1 (en) * 2000-11-14 2002-11-19 Hrl Laboratories, Llc Textured surface having high electromagnetic impedance in multiple frequency bands
US6573801B1 (en) * 2000-11-15 2003-06-03 Intel Corporation Electromagnetic coupler
JP2003085520A (en) * 2001-09-11 2003-03-20 Oji Paper Co Ltd Manufacturing method for ic card
JP2004007559A (en) * 2002-04-25 2004-01-08 Matsushita Electric Ind Co Ltd Multiple-resonance antenna, antenna module, and radio device using the multiple-resonance antenna
JP2004166384A (en) * 2002-11-12 2004-06-10 Sharp Corp Non-contact power feeding system, electromagnetic coupling characteristic adjustment method therein and power feeder
JP2004304226A (en) * 2003-03-28 2004-10-28 Matsushita Electric Ind Co Ltd Antenna device and radio communication apparatus using the same
KR20060004932A (en) * 2003-04-10 2006-01-16 애버리 데니슨 코포레이션 Rfid devices having self-compensating antennas and conductive shields
JP4312548B2 (en) * 2003-08-29 2009-08-12 シャープ株式会社 Wireless device
JP2005094360A (en) * 2003-09-17 2005-04-07 Kyocera Corp Antenna device and radio communication apparatus
JP4409257B2 (en) * 2003-11-18 2010-02-03 シャープ株式会社 Radio tag, article provided with the same, and RFID system
JP4452865B2 (en) * 2005-04-28 2010-04-21 智三 太田 Wireless IC tag device and RFID system
JP2006319496A (en) * 2005-05-11 2006-11-24 Hitachi Ltd Rfid tag

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110320602A (en) * 2018-03-30 2019-10-11 住友大阪水泥股份有限公司 Positioning member and the polarized combination module for having used the positioning member

Also Published As

Publication number Publication date
KR20080039881A (en) 2008-05-07
KR101312099B1 (en) 2013-09-25
TWI402756B (en) 2013-07-21
CA2656082A1 (en) 2007-01-04
JP2008544671A (en) 2008-12-04
JP5148487B2 (en) 2013-02-20
ATE549696T1 (en) 2012-03-15
GB2428939A (en) 2007-02-07

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)