TW200707306A - Wireless IC tag - Google Patents

Wireless IC tag

Info

Publication number
TW200707306A
TW200707306A TW095107240A TW95107240A TW200707306A TW 200707306 A TW200707306 A TW 200707306A TW 095107240 A TW095107240 A TW 095107240A TW 95107240 A TW95107240 A TW 95107240A TW 200707306 A TW200707306 A TW 200707306A
Authority
TW
Taiwan
Prior art keywords
antenna
range
thereabout
angle
tag
Prior art date
Application number
TW095107240A
Other languages
Chinese (zh)
Inventor
Hisao Tanabe
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Publication of TW200707306A publication Critical patent/TW200707306A/en

Links

Classifications

    • 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
    • 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
    • H01Q1/2225—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 used in active tags, i.e. provided with its own power source or in passive tags, i.e. deriving power from RF signal
    • 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
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/22—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using a secondary device in the form of a single substantially straight conductive element
    • H01Q19/24—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using a secondary device in the form of a single substantially straight conductive element the primary active element being centre-fed and substantially straight, e.g. H-antenna

Landscapes

  • Details Of Aerials (AREA)
  • Aerials With Secondary Devices (AREA)
  • Support Of Aerials (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

A technique for expanding the use range of an antenna for RFID by extending the communication distance of the antenna. A two-element antenna (1) is constituted by placing an antenna (13) in parallel with or at an angle other than right angle to a dipole antenna (12) that is connected with an IC chip (11) and is resonant to the communication carrier frequency. The dipole antenna (12) has a length in the range from λ/2 to λ/3, preferably λ/2.3 or thereabout. The antenna (13) has a length in the range from λ/2 to ?/4, preferably λ/2.8 or thereabout. The angle at which the dipole antenna (12) and the antenna (13) are combined is in the range from 45 DEG to 85 DEG , preferably 80 DEG or thereabout.
TW095107240A 2005-08-10 2006-03-03 Wireless IC tag TW200707306A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2005/014690 WO2007017944A1 (en) 2005-08-10 2005-08-10 Antenna

Publications (1)

Publication Number Publication Date
TW200707306A true TW200707306A (en) 2007-02-16

Family

ID=37727140

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095107240A TW200707306A (en) 2005-08-10 2006-03-03 Wireless IC tag

Country Status (3)

Country Link
JP (1) JPWO2007017967A1 (en)
TW (1) TW200707306A (en)
WO (2) WO2007017944A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4824649B2 (en) * 2007-08-13 2011-11-30 トッパン・フォームズ株式会社 Antenna member
EP2251934B1 (en) * 2008-03-03 2018-05-02 Murata Manufacturing Co. Ltd. Wireless ic device and wireless communication system
KR101330363B1 (en) 2010-09-17 2013-11-15 한국전자통신연구원 Directional rfid label tag for measuring postal matter delivery service
CN104567948B (en) * 2015-01-19 2017-01-25 山西大学 Resistor type sensor adopting radio frequency technology for recognition

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001345636A (en) * 2000-06-06 2001-12-14 Ngk Insulators Ltd Antenna unit
US6975834B1 (en) * 2000-10-03 2005-12-13 Mineral Lassen Llc Multi-band wireless communication device and method
JP2005094474A (en) * 2003-09-18 2005-04-07 Sharp Corp Multi-tag and rfid system utilizing multi-tag
JP2005134942A (en) * 2003-10-28 2005-05-26 Mitsubishi Materials Corp Rfid reader/writer and structure of antenna

Also Published As

Publication number Publication date
JPWO2007017967A1 (en) 2009-02-19
WO2007017944A1 (en) 2007-02-15
WO2007017967A1 (en) 2007-02-15

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