JPH03503467A - - Google Patents

Info

Publication number
JPH03503467A
JPH03503467A JP50185489A JP50185489A JPH03503467A JP H03503467 A JPH03503467 A JP H03503467A JP 50185489 A JP50185489 A JP 50185489A JP 50185489 A JP50185489 A JP 50185489A JP H03503467 A JPH03503467 A JP H03503467A
Authority
JP
Japan
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP50185489A
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 to AUPI658188 priority Critical
Application filed filed Critical
Publication of JPH03503467A publication Critical patent/JPH03503467A/ja
Application status is Pending legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/52Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
    • H01Q1/526Electromagnetic shields
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00Loop 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
    • H01Q7/04Screened antennas
JP50185489A 1988-02-04 1989-02-03 Pending JPH03503467A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AUPI658188 1988-02-04

Publications (1)

Publication Number Publication Date
JPH03503467A true JPH03503467A (en) 1991-08-01

Family

ID=3772776

Family Applications (1)

Application Number Title Priority Date Filing Date
JP50185489A Pending JPH03503467A (en) 1988-02-04 1989-02-03

Country Status (5)

Country Link
EP (1) EP0397755A4 (en)
JP (1) JPH03503467A (en)
CA (1) CA1334215C (en)
WO (1) WO1989007347A1 (en)
ZA (1) ZA8900872B (en)

Cited By (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001168618A (en) * 1999-12-08 2001-06-22 Smart Card Technologies:Kk Antenna device for reader/writer in non-contact type ic card system
JP2011249937A (en) * 2010-05-24 2011-12-08 Tdk Corp Proximity antenna and radio communication device
JP2012110043A (en) * 2009-04-21 2012-06-07 Murata Mfg Co Ltd Antenna apparatus and electronic equipment
JP5062382B2 (en) * 2010-09-07 2012-10-31 株式会社村田製作所 Antenna device
JP2013247671A (en) * 2012-05-23 2013-12-09 Taiwan Lamination Industries Inc Packing bag
JP2014011533A (en) * 2012-06-28 2014-01-20 Nec Tokin Corp Antenna device
US8690070B2 (en) 2009-04-14 2014-04-08 Murata Manufacturing Co., Ltd. Wireless IC device component and wireless IC device
US8847831B2 (en) 2009-07-03 2014-09-30 Murata Manufacturing Co., Ltd. Antenna and antenna module
US8853549B2 (en) 2009-09-30 2014-10-07 Murata Manufacturing Co., Ltd. Circuit substrate and method of manufacturing same
US8870077B2 (en) 2008-08-19 2014-10-28 Murata Manufacturing Co., Ltd. Wireless IC device and method for manufacturing same
US8878739B2 (en) 2011-07-14 2014-11-04 Murata Manufacturing Co., Ltd. Wireless communication device
US8905296B2 (en) 2011-12-01 2014-12-09 Murata Manufacturing Co., Ltd. Wireless integrated circuit device and method of manufacturing the same
US8917211B2 (en) 2008-11-17 2014-12-23 Murata Manufacturing Co., Ltd. Antenna and wireless IC device
US8937576B2 (en) 2011-04-05 2015-01-20 Murata Manufacturing Co., Ltd. Wireless communication device
US8944335B2 (en) 2010-09-30 2015-02-03 Murata Manufacturing Co., Ltd. Wireless IC device
US8960561B2 (en) 2011-02-28 2015-02-24 Murata Manufacturing Co., Ltd. Wireless communication device
US8973841B2 (en) 2008-05-21 2015-03-10 Murata Manufacturing Co., Ltd. Wireless IC device
US8981906B2 (en) 2010-08-10 2015-03-17 Murata Manufacturing Co., Ltd. Printed wiring board and wireless communication system
US8991713B2 (en) 2011-01-14 2015-03-31 Murata Manufacturing Co., Ltd. RFID chip package and RFID tag
US9024837B2 (en) 2010-03-31 2015-05-05 Murata Manufacturing Co., Ltd. Antenna and wireless communication device
US9024725B2 (en) 2009-11-04 2015-05-05 Murata Manufacturing Co., Ltd. Communication terminal and information processing system
US9104950B2 (en) 2009-01-30 2015-08-11 Murata Manufacturing Co., Ltd. Antenna and wireless IC device
US9117157B2 (en) 2009-10-02 2015-08-25 Murata Manufacturing Co., Ltd. Wireless IC device and electromagnetic coupling module
US9165239B2 (en) 2006-04-26 2015-10-20 Murata Manufacturing Co., Ltd. Electromagnetic-coupling-module-attached article
US9166291B2 (en) 2010-10-12 2015-10-20 Murata Manufacturing Co., Ltd. Antenna device and communication terminal apparatus
US9178279B2 (en) 2009-11-04 2015-11-03 Murata Manufacturing Co., Ltd. Wireless IC tag, reader-writer, and information processing system
US9236651B2 (en) 2010-10-21 2016-01-12 Murata Manufacturing Co., Ltd. Communication terminal device
US9281873B2 (en) 2008-05-26 2016-03-08 Murata Manufacturing Co., Ltd. Wireless IC device system and method of determining authenticity of wireless IC device
US9378452B2 (en) 2011-05-16 2016-06-28 Murata Manufacturing Co., Ltd. Radio IC device
US9444143B2 (en) 2009-10-16 2016-09-13 Murata Manufacturing Co., Ltd. Antenna and wireless IC device
US9461363B2 (en) 2009-11-04 2016-10-04 Murata Manufacturing Co., Ltd. Communication terminal and information processing system
US9460320B2 (en) 2009-10-27 2016-10-04 Murata Manufacturing Co., Ltd. Transceiver and radio frequency identification tag reader
US9460376B2 (en) 2007-07-18 2016-10-04 Murata Manufacturing Co., Ltd. Radio IC device
US9543642B2 (en) 2011-09-09 2017-01-10 Murata Manufacturing Co., Ltd. Antenna device and wireless device
US9558384B2 (en) 2010-07-28 2017-01-31 Murata Manufacturing Co., Ltd. Antenna apparatus and communication terminal instrument
US9692128B2 (en) 2012-02-24 2017-06-27 Murata Manufacturing Co., Ltd. Antenna device and wireless communication device
US9727765B2 (en) 2010-03-24 2017-08-08 Murata Manufacturing Co., Ltd. RFID system including a reader/writer and RFID tag
US9761923B2 (en) 2011-01-05 2017-09-12 Murata Manufacturing Co., Ltd. Wireless communication device
US10013650B2 (en) 2010-03-03 2018-07-03 Murata Manufacturing Co., Ltd. Wireless communication module and wireless communication device
US10235544B2 (en) 2012-04-13 2019-03-19 Murata Manufacturing Co., Ltd. Inspection method and inspection device for RFID tag

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5130697A (en) * 1990-10-30 1992-07-14 Sensormatic Electronics Corporation Method and apparatus for shaping a magnetic field
GB9220409D0 (en) * 1992-09-28 1992-11-11 Texas Instruments Holland Shielded transponder
US5557279A (en) * 1993-09-28 1996-09-17 Texas Instruments Incorporated Unitarily-tuned transponder/shield assembly
US5694139A (en) * 1994-06-28 1997-12-02 Sony Corporation Short-distance communication antenna and methods of manufacturing and using the short-distance communication antenna
JP3526928B2 (en) * 1994-11-15 2004-05-17 株式会社ルネサスLsiデザイン Non-contact ic card system
JP4260917B2 (en) * 1998-03-31 2009-04-30 株式会社東芝 Loop antenna
DE10149126A1 (en) * 2001-10-05 2003-04-10 Flexchip Ag Production of a screen used for a transponder comprises applying ferromagnetic particles to a region of the substrate having the spatial expansion of the antenna structure of a transponder, aligning the ferromagnetic particles, etc.
US7339120B2 (en) 2003-06-26 2008-03-04 Matsushita Electric Industrial Co., Ltd. Electromagnetic wave shield
JP2005102101A (en) * 2003-09-01 2005-04-14 Matsushita Electric Ind Co Ltd Gate antenna device
WO2007030862A1 (en) * 2005-09-12 2007-03-22 Magellan Technology Pty Ltd An attenuation device for an antenna of an interrogator
GB2520876C (en) * 2010-06-18 2015-12-30 Murata Manufacturing Co Communication terminal apparatus and antenna device
JP5131413B2 (en) 2011-02-15 2013-01-30 株式会社村田製作所 Antenna device and communication terminal device
US10476304B2 (en) 2015-05-27 2019-11-12 Qualcomm Incorporated Wireless power receive coil for metal backed device

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU113079B2 (en) * 1940-05-10 1941-05-22 Standa bd Telephones and Cables Pty. Limited Improvements in aerial systems for wireless communication
AU144473B2 (en) * 1948-01-22 1951-12-14 N. Y. Philips' Gloeilampenfabrieken Improvements in or relating to receiving or transmitting antennae
CA851281A (en) * 1967-10-24 1970-09-08 D. Boyd William Inductive loop signal system
JPS5226879B2 (en) * 1972-09-19 1977-07-16
US4243980A (en) * 1978-02-17 1981-01-06 Lichtblau G J Antenna system for electronic security installations
US4331285A (en) * 1980-03-24 1982-05-25 Hewlett-Packard Company Method for fabricating a magnetic shielding enclosure
US4353064A (en) * 1981-01-14 1982-10-05 Honeywell Inc. Battery operated access control card
JPS5843604A (en) * 1981-09-09 1983-03-14 Japan Radio Co Ltd Antenna element
US4549186A (en) * 1982-04-14 1985-10-22 Sensormatic Electronics Corporation Coil assembly for substantially isotropic flux linkage in a given plane
US4486731A (en) * 1982-06-10 1984-12-04 Sensormatic Electronics Corporation Coil assembly with flux directing means
US4549794A (en) 1983-05-05 1985-10-29 Schering Corporation Hydrophilic bifocal contact lens
EP0225954A1 (en) * 1985-12-18 1987-06-24 Alcan International Limited Protection for control equipment
EP0242484A3 (en) * 1986-04-23 1988-05-25 Tektronix, Inc. Electrical assembly having shielded structural sub-parts
FR2602906B1 (en) * 1986-07-29 1991-10-31 Lesage Christian Material for producing protective devices against the magnetic environment of objects of medium magnetic inscriptions, and protective devices realized with such a material

Cited By (54)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001168618A (en) * 1999-12-08 2001-06-22 Smart Card Technologies:Kk Antenna device for reader/writer in non-contact type ic card system
US9165239B2 (en) 2006-04-26 2015-10-20 Murata Manufacturing Co., Ltd. Electromagnetic-coupling-module-attached article
US9830552B2 (en) 2007-07-18 2017-11-28 Murata Manufacturing Co., Ltd. Radio IC device
US9460376B2 (en) 2007-07-18 2016-10-04 Murata Manufacturing Co., Ltd. Radio IC device
US8973841B2 (en) 2008-05-21 2015-03-10 Murata Manufacturing Co., Ltd. Wireless IC device
US9022295B2 (en) 2008-05-21 2015-05-05 Murata Manufacturing Co., Ltd. Wireless IC device
US9281873B2 (en) 2008-05-26 2016-03-08 Murata Manufacturing Co., Ltd. Wireless IC device system and method of determining authenticity of wireless IC device
US8870077B2 (en) 2008-08-19 2014-10-28 Murata Manufacturing Co., Ltd. Wireless IC device and method for manufacturing same
US8917211B2 (en) 2008-11-17 2014-12-23 Murata Manufacturing Co., Ltd. Antenna and wireless IC device
US9104950B2 (en) 2009-01-30 2015-08-11 Murata Manufacturing Co., Ltd. Antenna and wireless IC device
US8690070B2 (en) 2009-04-14 2014-04-08 Murata Manufacturing Co., Ltd. Wireless IC device component and wireless IC device
US8876010B2 (en) 2009-04-14 2014-11-04 Murata Manufacturing Co., Ltd Wireless IC device component and wireless IC device
US9564678B2 (en) 2009-04-21 2017-02-07 Murata Manufacturing Co., Ltd. Antenna device and method of setting resonant frequency of antenna device
JP2012157071A (en) * 2009-04-21 2012-08-16 Murata Mfg Co Ltd Antenna device and electronic apparatus
JP2012110043A (en) * 2009-04-21 2012-06-07 Murata Mfg Co Ltd Antenna apparatus and electronic equipment
US8976075B2 (en) 2009-04-21 2015-03-10 Murata Manufacturing Co., Ltd. Antenna device and method of setting resonant frequency of antenna device
US9203157B2 (en) 2009-04-21 2015-12-01 Murata Manufacturing Co., Ltd. Antenna device and method of setting resonant frequency of antenna device
US8847831B2 (en) 2009-07-03 2014-09-30 Murata Manufacturing Co., Ltd. Antenna and antenna module
US8853549B2 (en) 2009-09-30 2014-10-07 Murata Manufacturing Co., Ltd. Circuit substrate and method of manufacturing same
US9117157B2 (en) 2009-10-02 2015-08-25 Murata Manufacturing Co., Ltd. Wireless IC device and electromagnetic coupling module
US9444143B2 (en) 2009-10-16 2016-09-13 Murata Manufacturing Co., Ltd. Antenna and wireless IC device
US9460320B2 (en) 2009-10-27 2016-10-04 Murata Manufacturing Co., Ltd. Transceiver and radio frequency identification tag reader
US9178279B2 (en) 2009-11-04 2015-11-03 Murata Manufacturing Co., Ltd. Wireless IC tag, reader-writer, and information processing system
US9461363B2 (en) 2009-11-04 2016-10-04 Murata Manufacturing Co., Ltd. Communication terminal and information processing system
US9024725B2 (en) 2009-11-04 2015-05-05 Murata Manufacturing Co., Ltd. Communication terminal and information processing system
US10013650B2 (en) 2010-03-03 2018-07-03 Murata Manufacturing Co., Ltd. Wireless communication module and wireless communication device
US9727765B2 (en) 2010-03-24 2017-08-08 Murata Manufacturing Co., Ltd. RFID system including a reader/writer and RFID tag
US9024837B2 (en) 2010-03-31 2015-05-05 Murata Manufacturing Co., Ltd. Antenna and wireless communication device
JP2011249937A (en) * 2010-05-24 2011-12-08 Tdk Corp Proximity antenna and radio communication device
US9558384B2 (en) 2010-07-28 2017-01-31 Murata Manufacturing Co., Ltd. Antenna apparatus and communication terminal instrument
US8981906B2 (en) 2010-08-10 2015-03-17 Murata Manufacturing Co., Ltd. Printed wiring board and wireless communication system
US9948005B2 (en) 2010-09-07 2018-04-17 Murata Manufacturing Co., Ltd. Antenna device and communication terminal apparatus
JP2014053964A (en) * 2010-09-07 2014-03-20 Murata Mfg Co Ltd Antenna device
JP2015092777A (en) * 2010-09-07 2015-05-14 株式会社村田製作所 Antenna device
JP5062382B2 (en) * 2010-09-07 2012-10-31 株式会社村田製作所 Antenna device
US9865924B2 (en) 2010-09-07 2018-01-09 Murata Manufacturing Co., Ltd. Antenna device and communication terminal apparatus
US9825365B2 (en) 2010-09-07 2017-11-21 Murata Manufacturing Co., Ltd. Antenna device and communication terminal apparatus
US9391369B2 (en) 2010-09-07 2016-07-12 Murata Manufacturing Co., Ltd. Antenna device and communication terminal apparatus
JP2013013110A (en) * 2010-09-07 2013-01-17 Murata Mfg Co Ltd The antenna device
US8944335B2 (en) 2010-09-30 2015-02-03 Murata Manufacturing Co., Ltd. Wireless IC device
US9166291B2 (en) 2010-10-12 2015-10-20 Murata Manufacturing Co., Ltd. Antenna device and communication terminal apparatus
US9236651B2 (en) 2010-10-21 2016-01-12 Murata Manufacturing Co., Ltd. Communication terminal device
US9761923B2 (en) 2011-01-05 2017-09-12 Murata Manufacturing Co., Ltd. Wireless communication device
US8991713B2 (en) 2011-01-14 2015-03-31 Murata Manufacturing Co., Ltd. RFID chip package and RFID tag
US8960561B2 (en) 2011-02-28 2015-02-24 Murata Manufacturing Co., Ltd. Wireless communication device
US8937576B2 (en) 2011-04-05 2015-01-20 Murata Manufacturing Co., Ltd. Wireless communication device
US9378452B2 (en) 2011-05-16 2016-06-28 Murata Manufacturing Co., Ltd. Radio IC device
US8878739B2 (en) 2011-07-14 2014-11-04 Murata Manufacturing Co., Ltd. Wireless communication device
US9543642B2 (en) 2011-09-09 2017-01-10 Murata Manufacturing Co., Ltd. Antenna device and wireless device
US8905296B2 (en) 2011-12-01 2014-12-09 Murata Manufacturing Co., Ltd. Wireless integrated circuit device and method of manufacturing the same
US9692128B2 (en) 2012-02-24 2017-06-27 Murata Manufacturing Co., Ltd. Antenna device and wireless communication device
US10235544B2 (en) 2012-04-13 2019-03-19 Murata Manufacturing Co., Ltd. Inspection method and inspection device for RFID tag
JP2013247671A (en) * 2012-05-23 2013-12-09 Taiwan Lamination Industries Inc Packing bag
JP2014011533A (en) * 2012-06-28 2014-01-20 Nec Tokin Corp Antenna device

Also Published As

Publication number Publication date
EP0397755A1 (en) 1990-11-22
CA1334215C (en) 1995-01-31
WO1989007347A1 (en) 1989-08-10
EP0397755A4 (en) 1992-11-04
ZA8900872B (en) 1990-10-31

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