WO2007024348A3 - Dynamically reconfigurable antennas for rfid label encoders/readers - Google Patents

Dynamically reconfigurable antennas for rfid label encoders/readers

Info

Publication number
WO2007024348A3
WO2007024348A3 PCT/US2006/026471 US2006026471W WO2007024348A3 WO 2007024348 A3 WO2007024348 A3 WO 2007024348A3 US 2006026471 W US2006026471 W US 2006026471W WO 2007024348 A3 WO2007024348 A3 WO 2007024348A3
Authority
WO
Grant status
Application
Patent type
Prior art keywords
antenna
elements
rfid
encoder
reader
Prior art date
Application number
PCT/US2006/026471
Other languages
French (fr)
Other versions
WO2007024348A2 (en )
Inventor
Matthew Stephen Reynolds
Original Assignee
Thingmagic Inc
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

Links

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06Record 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
    • G06K19/067Record 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
    • G06K19/07Record 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
    • G06K19/077Constructional details, e.g. mounting of circuits in the carrier
    • G06K19/07749Constructional 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
    • GPHYSICS
    • G06COMPUTING; CALCULATING; COUNTING
    • G06KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06Record 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
    • G06K19/067Record 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
    • G06K19/07Record 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
    • G06K19/0723Record 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 the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs
    • G06K19/0726Record 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 the record carrier comprising an arrangement for non-contact communication, e.g. wireless communication circuits on transponder cards, non-contact smart cards or RFIDs the arrangement including a circuit for tuning the resonance frequency of an antenna on the record carrier
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01PWAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00Auxiliary devices
    • H01P1/10Auxiliary devices for switching or interrupting
    • H01P1/12Auxiliary devices for switching or interrupting by mechanical chopper
    • H01P1/127Strip line switches
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01PWAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00Auxiliary devices
    • H01P1/10Auxiliary devices for switching or interrupting
    • H01P1/15Auxiliary devices for switching or interrupting by semiconductor devices
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/12Supports; Mounting means
    • H01Q1/22Supports; Mounting means by structural association with other equipment or articles
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04Resonant antennas
    • H01Q9/0407Substantially flat resonant element parallel to ground plane, e.g. patch antenna

Abstract

A dynamically reconfigurable antenna system for an RFID (Radio Frequency Identification) reader/encoder includes a plurality of antenna elements; and a mechanism constructed and adapted to dynamically and selectively configure said plurality of antenna elements during operation thereof. The antenna elements may be arranged in a pattern of conductive areas, and each antenna element is switchably connectable to ground or to a transmission line connectable to the RFID reader/encoder. Each antenna element may be square, rectangle, circular, or diamond shaped. The antenna elements may located on an inner layer of the multi-layer printed circuit and wherein regions above the antenna elements are a dielectric layer or a slot aperture. The antenna system may be incorporated into an RFID encoder/reader.
PCT/US2006/026471 2005-08-19 2006-07-06 Dynamically reconfigurable antennas for rfid label encoders/readers WO2007024348A3 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US11206914 US7453363B2 (en) 2005-08-19 2005-08-19 RFID reader system incorporating antenna orientation sensing
US11/206,914 2005-08-19
US11265477 US7724141B2 (en) 2005-08-19 2005-11-03 Dynamically reconfigurable antennas for RFID label encoders/readers
US11/265,477 2005-11-03

Publications (2)

Publication Number Publication Date
WO2007024348A2 true WO2007024348A2 (en) 2007-03-01
WO2007024348A3 true true WO2007024348A3 (en) 2008-01-17

Family

ID=37772080

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/026471 WO2007024348A3 (en) 2005-08-19 2006-07-06 Dynamically reconfigurable antennas for rfid label encoders/readers

Country Status (1)

Country Link
WO (1) WO2007024348A3 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8264342B2 (en) 2008-10-28 2012-09-11 RF Surgical Systems, Inc Method and apparatus to detect transponder tagged objects, for example during medical procedures
WO2011072844A1 (en) * 2009-12-16 2011-06-23 Adant Srl Reconfigurable antenna system for radio frequency identification (rfid)
CN101872894A (en) * 2010-04-01 2010-10-27 电子科技大学 Medium resonator antenna with reconfigurable directional diagram and phased array thereof
CN103078171B (en) * 2013-01-05 2016-03-16 清华大学 Frequency reconfigurable antenna and preparation method
WO2015018902A1 (en) 2013-08-09 2015-02-12 Caretag Surgical Aps Registration of medical equipment
US9514341B2 (en) 2014-03-31 2016-12-06 Covidien Lp Method, apparatus and article for detection of transponder tagged objects, for example during surgery
US9690963B2 (en) 2015-03-02 2017-06-27 Covidien Lp Hand-held dual spherical antenna system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004042868A1 (en) * 2002-11-07 2004-05-21 Fractus, S.A. Integrated circuit package including miniature antenna
US20040201539A1 (en) * 2003-04-09 2004-10-14 Yewen Robert G. Radio frequency identification system and antenna system
US6903656B1 (en) * 2003-05-27 2005-06-07 Applied Wireless Identifications Group, Inc. RFID reader with multiple antenna selection and automated antenna matching

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004042868A1 (en) * 2002-11-07 2004-05-21 Fractus, S.A. Integrated circuit package including miniature antenna
US20040201539A1 (en) * 2003-04-09 2004-10-14 Yewen Robert G. Radio frequency identification system and antenna system
US6903656B1 (en) * 2003-05-27 2005-06-07 Applied Wireless Identifications Group, Inc. RFID reader with multiple antenna selection and automated antenna matching

Also Published As

Publication number Publication date Type
WO2007024348A2 (en) 2007-03-01 application

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