WO2008090745A1 - ループアンテナ - Google Patents

ループアンテナ Download PDF

Info

Publication number
WO2008090745A1
WO2008090745A1 PCT/JP2008/000077 JP2008000077W WO2008090745A1 WO 2008090745 A1 WO2008090745 A1 WO 2008090745A1 JP 2008000077 W JP2008000077 W JP 2008000077W WO 2008090745 A1 WO2008090745 A1 WO 2008090745A1
Authority
WO
WIPO (PCT)
Prior art keywords
loop antenna
ground patterns
pair
ground
vias
Prior art date
Application number
PCT/JP2008/000077
Other languages
English (en)
French (fr)
Inventor
Junro Takeuchi
Original Assignee
Nidec Sankyo Corporation
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 Nidec Sankyo Corporation filed Critical Nidec Sankyo Corporation
Priority to JP2008555004A priority Critical patent/JP5185832B2/ja
Publication of WO2008090745A1 publication Critical patent/WO2008090745A1/ja

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
    • H01Q7/04—Screened antennas
    • 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
    • G06K19/07779—Antenna details the antenna being of the inductive type the inductive antenna being a coil
    • 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
    • G06K19/07779—Antenna details the antenna being of the inductive type the inductive antenna being a coil
    • G06K19/07783—Antenna details the antenna being of the inductive type the inductive antenna being a coil the coil being planar
    • 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
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/40—Radiating elements coated with or embedded in protective material

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Details Of Aerials (AREA)

Abstract

ループアンテナの設置環境による特性変動を低減し、ひいてはデータ通信の機能低下を防ぐことが可能なループアンテナを提供する。非接触ＩＣカードリーダのデータ送受信回路に接続され、カード状媒体との通信を行うループ形状の給電パターン２１と、給電パターン２１を間に挟んで積層配置されるとともに、データ送受信回路のグランドに接続される一対のグランドパターン１１，３１と、を有し、一対のグランドパターンは、当該一対のグランドパターンによって形成される中間層を貫通する複数のビア４１を介して、互いに電気的に接続されているとともに、複数のビア４１は、一対のグランドパターンの抵抗を略均一に分布させるような間隔で配置されている。
PCT/JP2008/000077 2007-01-25 2008-01-24 ループアンテナ WO2008090745A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2008555004A JP5185832B2 (ja) 2007-01-25 2008-01-24 ループアンテナ

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007015663 2007-01-25
JP2007-015663 2007-01-25

Publications (1)

Publication Number Publication Date
WO2008090745A1 true WO2008090745A1 (ja) 2008-07-31

Family

ID=39644320

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/000077 WO2008090745A1 (ja) 2007-01-25 2008-01-24 ループアンテナ

Country Status (2)

Country Link
JP (1) JP5185832B2 (ja)
WO (1) WO2008090745A1 (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014024762A1 (ja) * 2012-08-09 2014-02-13 株式会社村田製作所 アンテナ装置および無線通信装置
JP2014053964A (ja) * 2010-09-07 2014-03-20 Murata Mfg Co Ltd アンテナ装置
WO2014112243A1 (ja) * 2013-01-15 2014-07-24 株式会社村田製作所 アンテナコイル内蔵モジュール、アンテナ装置および通信機器

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03166802A (ja) * 1989-11-27 1991-07-18 Kokusai Denshin Denwa Co Ltd <Kdd> マイクロストリップアンテナ
JPH06310928A (ja) * 1993-04-23 1994-11-04 Sharp Corp 平面アンテナ
JPH10261914A (ja) * 1997-03-19 1998-09-29 Murata Mfg Co Ltd アンテナ装置
JP2000341026A (ja) * 1999-05-26 2000-12-08 Kokusai Electric Co Ltd アンテナ基板及びそれを用いた無線通信機
JP2001196839A (ja) * 2000-01-04 2001-07-19 Advanced Space Communications Research Laboratory マイクロ波アンテナ
WO2001073889A1 (fr) * 2000-03-29 2001-10-04 Seiko Epson Corporation Antenne pour radio haute frequence, dispositif radio haute frequence, et dispositif radio haute frequence de type montre
JP2001326526A (ja) * 2000-05-16 2001-11-22 Mitsubishi Electric Corp シールドアンテナコイル
JP2003087044A (ja) * 2001-09-12 2003-03-20 Mitsubishi Materials Corp Ｒｆｉｄ用アンテナ及び該アンテナを備えたｒｆｉｄシステム
JP2004222226A (ja) * 2002-11-21 2004-08-05 Matsushita Electric Ind Co Ltd アンテナおよびアンテナを備えた携帯端末と移動体
JP2005026840A (ja) * 2003-06-30 2005-01-27 Mitsubishi Materials Corp アンテナ装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3518955B2 (ja) * 1996-06-24 2004-04-12 松下電器産業株式会社 準マイクロ波帯本質安全防爆用アンテナ部バリア装置

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03166802A (ja) * 1989-11-27 1991-07-18 Kokusai Denshin Denwa Co Ltd <Kdd> マイクロストリップアンテナ
JPH06310928A (ja) * 1993-04-23 1994-11-04 Sharp Corp 平面アンテナ
JPH10261914A (ja) * 1997-03-19 1998-09-29 Murata Mfg Co Ltd アンテナ装置
JP2000341026A (ja) * 1999-05-26 2000-12-08 Kokusai Electric Co Ltd アンテナ基板及びそれを用いた無線通信機
JP2001196839A (ja) * 2000-01-04 2001-07-19 Advanced Space Communications Research Laboratory マイクロ波アンテナ
WO2001073889A1 (fr) * 2000-03-29 2001-10-04 Seiko Epson Corporation Antenne pour radio haute frequence, dispositif radio haute frequence, et dispositif radio haute frequence de type montre
JP2001326526A (ja) * 2000-05-16 2001-11-22 Mitsubishi Electric Corp シールドアンテナコイル
JP2003087044A (ja) * 2001-09-12 2003-03-20 Mitsubishi Materials Corp Ｒｆｉｄ用アンテナ及び該アンテナを備えたｒｆｉｄシステム
JP2004222226A (ja) * 2002-11-21 2004-08-05 Matsushita Electric Ind Co Ltd アンテナおよびアンテナを備えた携帯端末と移動体
JP2005026840A (ja) * 2003-06-30 2005-01-27 Mitsubishi Materials Corp アンテナ装置

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014053964A (ja) * 2010-09-07 2014-03-20 Murata Mfg Co Ltd アンテナ装置
JP2015092777A (ja) * 2010-09-07 2015-05-14 株式会社村田製作所 アンテナ装置
US9391369B2 (en) 2010-09-07 2016-07-12 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
US9865924B2 (en) 2010-09-07 2018-01-09 Murata Manufacturing Co., Ltd. Antenna device and communication terminal apparatus
US9948005B2 (en) 2010-09-07 2018-04-17 Murata Manufacturing Co., Ltd. Antenna device and communication terminal apparatus
WO2014024762A1 (ja) * 2012-08-09 2014-02-13 株式会社村田製作所 アンテナ装置および無線通信装置
US9509051B2 (en) 2012-08-09 2016-11-29 Murata Manufacturing Co., Ltd. Antenna device and wireless communication apparatus
WO2014112243A1 (ja) * 2013-01-15 2014-07-24 株式会社村田製作所 アンテナコイル内蔵モジュール、アンテナ装置および通信機器
JP5633662B1 (ja) * 2013-01-15 2014-12-03 株式会社村田製作所 アンテナコイル内蔵モジュール、アンテナ装置および通信機器

Also Published As

Publication number Publication date
JPWO2008090745A1 (ja) 2010-05-20
JP5185832B2 (ja) 2013-04-17

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