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WO2008143220A1 - Antenna unit - Google Patents

Antenna unit Download PDF

Info

Publication number
WO2008143220A1
WO2008143220A1 PCT/JP2008/059151 JP2008059151W WO2008143220A1 WO 2008143220 A1 WO2008143220 A1 WO 2008143220A1 JP 2008059151 W JP2008059151 W JP 2008059151W WO 2008143220 A1 WO2008143220 A1 WO 2008143220A1
Authority
WO
WIPO (PCT)
Prior art keywords
antenna
minute loop
circuit board
loop antenna
antenna unit
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.)
Ceased
Application number
PCT/JP2008/059151
Other languages
French (fr)
Japanese (ja)
Inventor
Shinsuke Ueda
Kazuhiro Matsumoto
Kazuhisa Yoshiki
Hirotada Higashihama
Hideki Kasai
Yoko Tanikaga
Takashi Saeki
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Panasonic Electric Works 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 Panasonic Electric Works Co Ltd filed Critical Panasonic Electric Works Co Ltd
Priority to KR1020097025633A priority Critical patent/KR101145609B1/en
Priority to CN2008800165558A priority patent/CN101682117B/en
Publication of WO2008143220A1 publication Critical patent/WO2008143220A1/en
Anticipated expiration legal-status Critical
Ceased 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
    • H01Q1/12—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
    • H01Q1/007—Details of, or arrangements associated with, antennas specially adapted for indoor communication
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/48—Earthing means; Earth screens; Counterpoises
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/30—Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
    • 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
    • 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
    • H01Q7/005—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 variable reactance for tuning the antenna
    • 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
    • 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
    • H01Q9/28—Conical, cylindrical, cage, strip, gauze, or like elements having an extended radiating surface; Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines
    • H01Q9/285—Planar dipole

Landscapes

  • Details Of Aerials (AREA)
  • Support Of Aerials (AREA)

Abstract

An antenna unit employing a minute loop antenna comprises a minute loop antenna (11) formed substantially perpendicular to the mounting surface of a circuit board (2), a ground pattern (6) formed on the mounting surface of the circuit board (2) and functioning as a dipole antenna, and a wireless circuit section (12) mounted on the circuit board. When a conductors is arranged closely, increase in resonance frequency of the minute loop antenna (11) due to the conductor is compensated by lowering the resonance frequency of the dipole antenna (6), thereby reducing impedance mismatch between the minute loop antenna (11) and the dipole antenna (6) and the wireless circuit section (12).
PCT/JP2008/059151 2007-05-18 2008-05-19 Antenna unit Ceased WO2008143220A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020097025633A KR101145609B1 (en) 2007-05-18 2008-05-19 Antenna device
CN2008800165558A CN101682117B (en) 2007-05-18 2008-05-19 Antenna unit

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007132344A JP4770792B2 (en) 2007-05-18 2007-05-18 Antenna device
JP2007-132344 2007-05-18

Publications (1)

Publication Number Publication Date
WO2008143220A1 true WO2008143220A1 (en) 2008-11-27

Family

ID=40031917

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/059151 Ceased WO2008143220A1 (en) 2007-05-18 2008-05-19 Antenna unit

Country Status (5)

Country Link
JP (1) JP4770792B2 (en)
KR (1) KR101145609B1 (en)
CN (1) CN101682117B (en)
TW (1) TWI357690B (en)
WO (1) WO2008143220A1 (en)

Cited By (5)

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JP2008288915A (en) * 2007-05-18 2008-11-27 Panasonic Electric Works Co Ltd Antenna device
JP2008288916A (en) * 2007-05-18 2008-11-27 Panasonic Electric Works Co Ltd Antenna device
JP2010245789A (en) * 2009-04-03 2010-10-28 Toyota Central R&D Labs Inc Antenna device
JP2011222833A (en) * 2010-04-12 2011-11-04 Canon Inc Electromagnetic wave detecting device
EP2662925B1 (en) * 2012-05-10 2018-04-04 Acer Incorporated Communication device and antenna structure therein

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US7519328B2 (en) 2006-01-19 2009-04-14 Murata Manufacturing Co., Ltd. Wireless IC device and component for wireless IC device
US9064198B2 (en) 2006-04-26 2015-06-23 Murata Manufacturing Co., Ltd. Electromagnetic-coupling-module-attached article
WO2008001561A1 (en) 2006-06-30 2008-01-03 Murata Manufacturing Co., Ltd. Optical disc
JP4775442B2 (en) 2006-09-26 2011-09-21 株式会社村田製作所 Article with electromagnetic coupling module
US8235299B2 (en) 2007-07-04 2012-08-07 Murata Manufacturing Co., Ltd. Wireless IC device and component for wireless IC device
ATE540377T1 (en) 2007-04-26 2012-01-15 Murata Manufacturing Co WIRELESS IC DEVICE
JP4666102B2 (en) 2007-05-11 2011-04-06 株式会社村田製作所 Wireless IC device
CN101542831B (en) 2007-07-09 2014-06-25 株式会社村田制作所 Wireless ic device
CN101578616A (en) 2007-07-17 2009-11-11 株式会社村田制作所 Wireless IC device and electronic apparatus
EP2166616B1 (en) 2007-07-18 2013-11-27 Murata Manufacturing Co. Ltd. Wireless ic device
EP2251934B1 (en) 2008-03-03 2018-05-02 Murata Manufacturing Co. Ltd. Wireless ic device and wireless communication system
WO2009142114A1 (en) 2008-05-21 2009-11-26 株式会社村田製作所 Wireless ic device
WO2009145007A1 (en) 2008-05-26 2009-12-03 株式会社村田製作所 Wireless ic device system and method for authenticating wireless ic device
EP2320519B1 (en) 2008-08-19 2017-04-12 Murata Manufacturing Co., Ltd. Wireless ic device and method for manufacturing same
WO2010055945A1 (en) 2008-11-17 2010-05-20 株式会社村田製作所 Antenna and wireless ic device
JP5041075B2 (en) 2009-01-09 2012-10-03 株式会社村田製作所 Wireless IC device and wireless IC module
JP5267578B2 (en) 2009-01-30 2013-08-21 株式会社村田製作所 Antenna and wireless IC device
JP5510450B2 (en) * 2009-04-14 2014-06-04 株式会社村田製作所 Wireless IC device
WO2010122685A1 (en) 2009-04-21 2010-10-28 株式会社村田製作所 Antenna apparatus and resonant frequency setting method of same
CN102449846B (en) 2009-06-03 2015-02-04 株式会社村田制作所 Wireless IC device and production method thereof
JP5516580B2 (en) 2009-06-19 2014-06-11 株式会社村田製作所 Wireless IC device and method for coupling power feeding circuit and radiation plate
CN102474009B (en) 2009-07-03 2015-01-07 株式会社村田制作所 Antenna and antenna module
WO2011037234A1 (en) 2009-09-28 2011-03-31 株式会社村田製作所 Wireless ic device and method for detecting environmental conditions using same
JP5353609B2 (en) * 2009-09-29 2013-11-27 株式会社日本自動車部品総合研究所 Antenna device
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
CN102576939B (en) 2009-10-16 2015-11-25 株式会社村田制作所 Antenna and wireless ic device
WO2011052310A1 (en) 2009-10-27 2011-05-05 株式会社村田製作所 Transmitting/receiving apparatus and wireless tag reader
WO2011055703A1 (en) 2009-11-04 2011-05-12 株式会社村田製作所 Communication terminal and information processing system
GB2487315B (en) 2009-11-04 2014-09-24 Murata Manufacturing Co Communication terminal and information processing system
CN102473244B (en) 2009-11-04 2014-10-08 株式会社村田制作所 Wireless IC tag, reader/writer, and information processing system
JP4930658B2 (en) 2009-11-20 2012-05-16 株式会社村田製作所 ANTENNA DEVICE AND MOBILE COMMUNICATION TERMINAL
GB2488450B (en) 2009-12-24 2014-08-20 Murata Manufacturing Co Antenna and mobile terminal
CN102782937B (en) 2010-03-03 2016-02-17 株式会社村田制作所 Wireless communication devices and wireless communication terminal
JP5652470B2 (en) 2010-03-03 2015-01-14 株式会社村田製作所 Wireless communication module and wireless communication device
CN102576940B (en) 2010-03-12 2016-05-04 株式会社村田制作所 Wireless communication devices and metal article processed
WO2011118379A1 (en) 2010-03-24 2011-09-29 株式会社村田製作所 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
WO2012005278A1 (en) 2010-07-08 2012-01-12 株式会社村田製作所 Antenna and rfid device
CN104752813B (en) 2010-07-28 2018-03-02 株式会社村田制作所 Antenna assembly and communication terminal device
JP5423897B2 (en) 2010-08-10 2014-02-19 株式会社村田製作所 Printed wiring board and wireless communication system
JP5630506B2 (en) 2010-09-30 2014-11-26 株式会社村田製作所 Wireless IC device
CN105226382B (en) * 2010-10-12 2019-06-11 株式会社村田制作所 Antenna device and terminal device
CN102971909B (en) 2010-10-21 2014-10-15 株式会社村田制作所 Communication terminal device
JP5510560B2 (en) 2011-01-05 2014-06-04 株式会社村田製作所 Wireless communication device
WO2012096365A1 (en) 2011-01-14 2012-07-19 株式会社村田製作所 Rfid chip package and rfid tag
JP5785007B2 (en) * 2011-02-04 2015-09-24 デクセリアルズ株式会社 ANTENNA DEVICE AND COMMUNICATION DEVICE
WO2012117843A1 (en) 2011-02-28 2012-09-07 株式会社村田製作所 Wireless communication device
KR101317226B1 (en) 2011-04-05 2013-10-15 가부시키가이샤 무라타 세이사쿠쇼 Wireless communication device
WO2012141070A1 (en) 2011-04-13 2012-10-18 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
EP2683031B1 (en) 2011-07-14 2016-04-27 Murata Manufacturing Co., Ltd. Wireless communication device
JP5333707B2 (en) 2011-07-15 2013-11-06 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
WO2013035821A1 (en) 2011-09-09 2013-03-14 株式会社村田製作所 Antenna device and wireless device
JP5344108B1 (en) 2011-12-01 2013-11-20 株式会社村田製作所 Wireless IC device and manufacturing method thereof
KR20130105938A (en) 2012-01-30 2013-09-26 가부시키가이샤 무라타 세이사쿠쇼 Wireless ic device
JP5464307B2 (en) 2012-02-24 2014-04-09 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
WO2015159324A1 (en) * 2014-04-17 2015-10-22 三菱電機株式会社 Antenna device and antenna-manufacturing method
US9748654B2 (en) * 2014-12-16 2017-08-29 Laird Technologies, Inc. Antenna systems with proximity coupled annular rectangular patches
JP6206563B2 (en) * 2016-08-09 2017-10-04 富士通株式会社 Data communication terminal
JP6873539B2 (en) * 2017-01-16 2021-05-19 日本無線株式会社 Antenna device and wireless communication device
CN114062796B (en) * 2020-08-04 2023-11-14 青岛海尔电冰箱有限公司 Detection device for electromagnetic wave generation system
TWI816134B (en) * 2021-06-09 2023-09-21 財團法人工業技術研究院 Antenna module
US20250079707A1 (en) * 2021-11-10 2025-03-06 Sony Group Corporation Antenna and electronic apparatus

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JPH0213842B2 (en) * 1981-12-16 1990-04-05 Matsushita Electric Ind Co Ltd
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JP2002299880A (en) * 2001-03-30 2002-10-11 Seiko Epson Corp Electromagnetic wave shielding antenna element and electromagnetic wave shield using the same
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DE10025992A1 (en) * 2000-05-25 2002-01-03 Siemens Ag Antenna system e.g. for mobile telephone has respective electrically and magnetically active antennas spaced in near field
JP3840883B2 (en) * 2000-07-12 2006-11-01 日本電気株式会社 Printed circuit board design support apparatus, design support method, and recording medium recording program used in design support apparatus
JP2002299880A (en) * 2001-03-30 2002-10-11 Seiko Epson Corp Electromagnetic wave shielding antenna element and electromagnetic wave shield using the same
JP2004165916A (en) * 2002-11-12 2004-06-10 Shinko Electric Ind Co Ltd Circuit board with built-in pattern antenna
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008288915A (en) * 2007-05-18 2008-11-27 Panasonic Electric Works Co Ltd Antenna device
JP2008288916A (en) * 2007-05-18 2008-11-27 Panasonic Electric Works Co Ltd Antenna device
JP2010245789A (en) * 2009-04-03 2010-10-28 Toyota Central R&D Labs Inc Antenna device
US8836603B2 (en) 2009-04-03 2014-09-16 Toyota Jidosha Kabushiki Kaisha Antenna device
JP2011222833A (en) * 2010-04-12 2011-11-04 Canon Inc Electromagnetic wave detecting device
EP2662925B1 (en) * 2012-05-10 2018-04-04 Acer Incorporated Communication device and antenna structure therein

Also Published As

Publication number Publication date
KR101145609B1 (en) 2012-05-15
CN101682117A (en) 2010-03-24
TWI357690B (en) 2012-02-01
KR20100007975A (en) 2010-01-22
JP2008288915A (en) 2008-11-27
TW200913382A (en) 2009-03-16
CN101682117B (en) 2013-01-02
JP4770792B2 (en) 2011-09-14

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