SG11201507502TA - Antenna device - Google Patents

Antenna device

Info

Publication number
SG11201507502TA
SG11201507502TA SG11201507502TA SG11201507502TA SG11201507502TA SG 11201507502T A SG11201507502T A SG 11201507502TA SG 11201507502T A SG11201507502T A SG 11201507502TA SG 11201507502T A SG11201507502T A SG 11201507502TA SG 11201507502T A SG11201507502T A SG 11201507502TA
Authority
SG
Singapore
Prior art keywords
antenna device
antenna
Prior art date
Application number
SG11201507502TA
Inventor
Takashi Otsuki
Original Assignee
Ricoh 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
Priority claimed from JP2013053237A external-priority patent/JP2014179850A/en
Priority claimed from JP2013070150A external-priority patent/JP2014195137A/en
Priority claimed from JP2013070151A external-priority patent/JP2014195138A/en
Application filed by Ricoh Co Ltd filed Critical Ricoh Co Ltd
Publication of SG11201507502TA publication Critical patent/SG11201507502TA/en

Links

Classifications

    • 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
    • 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
    • G06K19/07773—Antenna details
    • G06K19/07777—Antenna details the antenna being of the inductive type
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
    • 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
SG11201507502TA 2013-03-15 2014-03-13 Antenna device SG11201507502TA (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2013053237A JP2014179850A (en) 2013-03-15 2013-03-15 Antenna device
JP2013070150A JP2014195137A (en) 2013-03-28 2013-03-28 Antenna device
JP2013070151A JP2014195138A (en) 2013-03-28 2013-03-28 Antenna device
PCT/JP2014/057630 WO2014142345A1 (en) 2013-03-15 2014-03-13 Antenna device

Publications (1)

Publication Number Publication Date
SG11201507502TA true SG11201507502TA (en) 2015-10-29

Family

ID=51536990

Family Applications (1)

Application Number Title Priority Date Filing Date
SG11201507502TA SG11201507502TA (en) 2013-03-15 2014-03-13 Antenna device

Country Status (6)

Country Link
US (1) US10164337B2 (en)
EP (1) EP2973856A4 (en)
CN (1) CN105190995A (en)
CA (1) CA2903705A1 (en)
SG (1) SG11201507502TA (en)
WO (1) WO2014142345A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102593172B1 (en) * 2016-10-05 2023-10-24 삼성전자 주식회사 Electronic device having loop antenna
JP6676937B2 (en) 2015-11-19 2020-04-08 株式会社リコー Antenna device, communication device, and method of manufacturing antenna device
JP6597431B2 (en) * 2016-03-18 2019-10-30 株式会社リコー Antenna device and communication device
JP6728941B2 (en) 2016-04-27 2020-07-22 株式会社リコー Antenna device, communication device, and method for manufacturing antenna device
JP2018113522A (en) 2017-01-10 2018-07-19 株式会社リコー Antenna device, communication device, and method for manufacturing antenna device
JP2018201165A (en) 2017-05-29 2018-12-20 株式会社リコー Antenna device and method for manufacturing the same
KR102075779B1 (en) * 2017-08-18 2020-02-11 주식회사 아모텍 Ring type antenna and earphone having the same
EP3675281B1 (en) 2017-08-24 2023-01-11 Nippon Telegraph and Telephone Corporation Dual loop antenna
FR3071988B1 (en) * 2017-10-03 2020-11-06 Continental Automotive France NEAR FIELD COMMUNICATION DEVICE
CN114242407B (en) * 2021-12-07 2023-11-17 北京铁路信号有限公司 Multi-coil magnetic rod inductor, parameter calibration method thereof, antenna and communication equipment

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US5587719A (en) * 1994-02-04 1996-12-24 Orbital Sciences Corporation Axially arrayed helical antenna
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JP3956172B2 (en) 1998-07-31 2007-08-08 吉川アールエフシステム株式会社 Data carrier and antenna for data carrier
JP4089167B2 (en) 2001-03-30 2008-05-28 三菱マテリアル株式会社 RFID tag
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JP2006295981A (en) 2002-01-17 2006-10-26 Mitsubishi Materials Corp Antenna for reader/writer and reader/writer equipped with antenna
JP3982268B2 (en) 2002-01-17 2007-09-26 ソニー株式会社 Antenna circuit device and manufacturing method thereof
JP3896965B2 (en) * 2002-01-17 2007-03-22 三菱マテリアル株式会社 Reader / writer antenna and reader / writer equipped with the antenna
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JP4304672B2 (en) 2003-11-27 2009-07-29 日立金属株式会社 Radio clock antenna and radio clock using the same
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US8072387B2 (en) 2005-07-07 2011-12-06 Toda Kogyo Corporation Magnetic antenna and board mounted with the same
JP2007028114A (en) * 2005-07-14 2007-02-01 Toda Kogyo Corp Magnetic material antenna
JP4821965B2 (en) 2005-07-07 2011-11-24 戸田工業株式会社 Magnetic antenna
JP3121577U (en) 2006-03-02 2006-05-18 株式会社スマート Eccentric magnetic coil system
JP3957000B1 (en) * 2006-07-07 2007-08-08 株式会社村田製作所 Antenna coil for board mounting and antenna device
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WO2010013992A1 (en) * 2008-07-31 2010-02-04 Eng Siang Koh Flexible thin ribbon helical coil
JP4957683B2 (en) 2008-08-29 2012-06-20 株式会社村田製作所 Antenna device
JP2011030190A (en) * 2009-06-24 2011-02-10 Panasonic Corp Antenna device and portable radio equipment provided with the same
JP5668298B2 (en) 2010-03-11 2015-02-12 株式会社リコー ANTENNA DEVICE AND WIRELESS COMMUNICATION DEVICE USING THE SAME
JP5573358B2 (en) 2010-05-20 2014-08-20 株式会社リコー ANTENNA DEVICE AND WIRELESS COMMUNICATION DEVICE USING THE SAME
JP5614335B2 (en) 2011-03-01 2014-10-29 株式会社リコー RFID tag and electronic device equipped with RFID tag
JP6102275B2 (en) 2012-09-13 2017-03-29 株式会社リコー Amplifier circuit, antenna module, and wireless communication device

Also Published As

Publication number Publication date
WO2014142345A1 (en) 2014-09-18
EP2973856A1 (en) 2016-01-20
US10164337B2 (en) 2018-12-25
US20160028160A1 (en) 2016-01-28
CN105190995A (en) 2015-12-23
EP2973856A4 (en) 2016-03-16
CA2903705A1 (en) 2014-09-18

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