GB2470299B - Coil antenna with a planar magnetic core - Google Patents

Coil antenna with a planar magnetic core

Info

Publication number
GB2470299B
GB2470299B GB1008206A GB201008206A GB2470299B GB 2470299 B GB2470299 B GB 2470299B GB 1008206 A GB1008206 A GB 1008206A GB 201008206 A GB201008206 A GB 201008206A GB 2470299 B GB2470299 B GB 2470299B
Authority
GB
United Kingdom
Prior art keywords
magnetic core
coil antenna
planar magnetic
planar
antenna
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.)
Active
Application number
GB1008206A
Other versions
GB2470299A (en
GB201008206D0 (en
Inventor
Kuniaki Yosui
Hiroyuki Kubo
Hiromitsu Ito
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 GB201008206D0 publication Critical patent/GB201008206D0/en
Publication of GB2470299A publication Critical patent/GB2470299A/en
Application granted granted Critical
Publication of GB2470299B publication Critical patent/GB2470299B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • 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
    • 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
    • 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
    • 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
    • H01Q7/08—Ferrite rod or like elongated core
    • 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
    • H01Q9/27—Spiral antennas

Landscapes

  • 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)
  • Coils Or Transformers For Communication (AREA)
GB1008206A 2009-05-15 2010-05-17 Coil antenna with a planar magnetic core Active GB2470299B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2009119027A JP4883136B2 (en) 2009-05-15 2009-05-15 Coil antenna

Publications (3)

Publication Number Publication Date
GB201008206D0 GB201008206D0 (en) 2010-06-30
GB2470299A GB2470299A (en) 2010-11-17
GB2470299B true GB2470299B (en) 2011-10-26

Family

ID=42334883

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1008206A Active GB2470299B (en) 2009-05-15 2010-05-17 Coil antenna with a planar magnetic core

Country Status (3)

Country Link
JP (1) JP4883136B2 (en)
CN (1) CN101888021B (en)
GB (1) GB2470299B (en)

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2251934B1 (en) 2008-03-03 2018-05-02 Murata Manufacturing Co. Ltd. Wireless ic device and wireless communication system
CN103295056B (en) 2008-05-21 2016-12-28 株式会社村田制作所 Wireless IC device
CN104077622B (en) 2008-05-26 2016-07-06 株式会社村田制作所 The authenticating method of wireless IC device system and Wireless IC device
DE112009002384B4 (en) 2008-11-17 2021-05-06 Murata Manufacturing Co., Ltd. Antenna and wireless IC component
WO2010119854A1 (en) 2009-04-14 2010-10-21 株式会社村田製作所 Component for wireless ic device and wireless ic device
EP2424041B1 (en) 2009-04-21 2018-11-21 Murata Manufacturing Co., Ltd. Antenna apparatus and resonant frequency setting method of same
WO2011040393A1 (en) 2009-09-30 2011-04-07 株式会社村田製作所 Circuit substrate and method of manufacture thereof
JP5304580B2 (en) 2009-10-02 2013-10-02 株式会社村田製作所 Wireless IC device
JP5327334B2 (en) 2009-11-04 2013-10-30 株式会社村田製作所 Communication terminal and information processing system
WO2011108340A1 (en) 2010-03-03 2011-09-09 株式会社村田製作所 Wireless communication module and wireless communication device
CN102668241B (en) 2010-03-24 2015-01-28 株式会社村田制作所 Rfid system
JP5630499B2 (en) 2010-03-31 2014-11-26 株式会社村田製作所 Antenna apparatus and wireless communication device
WO2012014939A1 (en) 2010-07-28 2012-02-02 株式会社村田製作所 Antenna device and communications terminal device
JP5472153B2 (en) 2010-12-24 2014-04-16 株式会社村田製作所 Antenna device, battery pack with antenna, and communication terminal device
JP5848120B2 (en) * 2010-12-28 2016-01-27 デクセリアルズ株式会社 ANTENNA MODULE, COMMUNICATION DEVICE, AND ANTENNA MODULE MANUFACTURING METHOD
CN104899639B (en) 2011-02-28 2018-08-07 株式会社村田制作所 Wireless communication devices
WO2012121185A1 (en) 2011-03-08 2012-09-13 株式会社村田製作所 Antenna device and communication terminal apparatus
JP5482964B2 (en) 2011-04-13 2014-05-07 株式会社村田製作所 Wireless IC device and wireless communication terminal
JP5569648B2 (en) 2011-05-16 2014-08-13 株式会社村田製作所 Wireless IC device
WO2013011856A1 (en) 2011-07-15 2013-01-24 株式会社村田製作所 Wireless communication device
JP5660217B2 (en) 2011-07-19 2015-01-28 株式会社村田製作所 Antenna device, RFID tag, and communication terminal device
WO2013035713A1 (en) * 2011-09-09 2013-03-14 株式会社村田製作所 Antenna device and communication terminal device
JP5418737B2 (en) 2011-09-09 2014-02-19 株式会社村田製作所 Antenna apparatus and wireless device
WO2013080991A1 (en) 2011-12-01 2013-06-06 株式会社村田製作所 Wireless ic device and method for manufacturing same
WO2013125610A1 (en) 2012-02-24 2013-08-29 株式会社村田製作所 Antenna device and wireless communication device
JP5304975B1 (en) 2012-04-13 2013-10-02 株式会社村田製作所 RFID tag inspection method and inspection apparatus
DE102013104059B4 (en) * 2013-04-22 2024-05-29 Infineon Technologies Ag Antenna arrangement and communication device
CN204809410U (en) 2013-08-13 2015-11-25 株式会社村田制作所 Antenna device , card formula device and electronic equipment
KR101812782B1 (en) 2016-12-23 2017-12-27 주식회사 알에프텍 Antenna and mobile terminal apparatus having the same
CN107968247B (en) * 2017-11-28 2020-01-10 上海坤锐电子科技有限公司 Antenna structure, reader and intelligent vending equipment

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1477927A1 (en) * 2002-09-27 2004-11-17 Sony Corporation Antenna device and communication device using antenna device
EP1484816A1 (en) * 2002-01-17 2004-12-08 Mitsubishi Materials Corporation Antenna for reader/writer and reader/writer having the antenna
EP1689028A1 (en) * 2003-11-28 2006-08-09 Fujitsu Limited Information processing device having non-contact reader and/or writer and coil antenna for magnetic connection
WO2009078214A1 (en) * 2007-12-18 2009-06-25 Murata Manufacturing Co., Ltd. Magnetic material antenna and antenna device
EP2202843A1 (en) * 2008-12-24 2010-06-30 Murata Manufacturing Co. Ltd. Magnetic antenna and antenna device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4414940B2 (en) * 2005-06-14 2010-02-17 ソニーケミカル＆インフォメーションデバイス株式会社 ANTENNA DEVICE AND ANTENNA DEVICE ADJUSTING METHOD
JP4367717B2 (en) * 2007-03-26 2009-11-18 ソニー・エリクソン・モバイルコミュニケーションズ株式会社 Near field communication antenna and portable device
CN101447603A (en) * 2008-12-19 2009-06-03 上海集成电路研发中心有限公司 Antenna with progressive structure on RFID chip

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1484816A1 (en) * 2002-01-17 2004-12-08 Mitsubishi Materials Corporation Antenna for reader/writer and reader/writer having the antenna
EP1477927A1 (en) * 2002-09-27 2004-11-17 Sony Corporation Antenna device and communication device using antenna device
EP1689028A1 (en) * 2003-11-28 2006-08-09 Fujitsu Limited Information processing device having non-contact reader and/or writer and coil antenna for magnetic connection
WO2009078214A1 (en) * 2007-12-18 2009-06-25 Murata Manufacturing Co., Ltd. Magnetic material antenna and antenna device
EP2202843A1 (en) * 2008-12-24 2010-06-30 Murata Manufacturing Co. Ltd. Magnetic antenna and antenna device

Also Published As

Publication number Publication date
GB2470299A (en) 2010-11-17
GB201008206D0 (en) 2010-06-30
JP2010268306A (en) 2010-11-25
JP4883136B2 (en) 2012-02-22
CN101888021A (en) 2010-11-17
CN101888021B (en) 2014-03-12

Similar Documents

Publication Publication Date Title
GB2470299B (en) Coil antenna with a planar magnetic core
GB2470113B (en) Magnetic core and conductive plate arrangement for a magnetic antenna
EP2452928A4 (en) Ferrite magnetic material
TWM390532U (en) Iron core coil assembly
EP2511249A4 (en) Ferrite magnetic material, ferrite magnet, ferrite sintered magnet
EP2412072A4 (en) Magnetic inductive charging with low far fields
EP2383242A4 (en) Mnzn ferrite core and manufacturing method therefor
EP2383241A4 (en) Mnznco ferrite core and manufacturing method therefor
GB2480637B (en) Solenoidal magnets having supported outer coils
EP2628028A4 (en) Nuclear magnetic resonance tool with external magnets
KR101157746B9 (en) Electromagnetic coil device
EP2453449A4 (en) Ferrite magnetic material
GB2468359B (en) Magnetic resonance system
GB0903868D0 (en) A magnetic resonance device
GB0906149D0 (en) Nuclear magnetic resonance imaging
EP2405504A4 (en) Magnetic memory
GB0903033D0 (en) Moving coil assemblies
ZA201104881B (en) Gapped magnet core
PL2643254T3 (en) Core with a tag
EP2454769A4 (en) Low magnetic interference battery
EP2281208A4 (en) Mri coil design
EP2446451A4 (en) Transformer coil assembly
PL2395517T3 (en) Inductive component with magnetic core
GB201209765D0 (en) Solenoidal magnets having supported outer coils
GB0800131D0 (en) Magnetic coil former