WO2002069490A3 - Antenna matching circuit - Google Patents

Antenna matching circuit Download PDF

Info

Publication number
WO2002069490A3
WO2002069490A3 PCT/US2002/006315 US0206315W WO02069490A3 WO 2002069490 A3 WO2002069490 A3 WO 2002069490A3 US 0206315 W US0206315 W US 0206315W WO 02069490 A3 WO02069490 A3 WO 02069490A3
Authority
WO
WIPO (PCT)
Prior art keywords
circuit
antenna
matching circuit
stub
seen
Prior art date
Application number
PCT/US2002/006315
Other languages
French (fr)
Other versions
WO2002069490A2 (en
Inventor
Curtis Lee Carrender
Original Assignee
Battelle Memorial Institute
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 Battelle Memorial Institute filed Critical Battelle Memorial Institute
Priority to EP02715019A priority Critical patent/EP1378058A2/en
Priority to JP2002568500A priority patent/JP2004526359A/en
Publication of WO2002069490A2 publication Critical patent/WO2002069490A2/en
Publication of WO2002069490A3 publication Critical patent/WO2002069490A3/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/38—Impedance-matching networks

Abstract

A matching circuit for use with radio frequency identification tag antennas configured for modulated backscatter, the circuit including a stub circuit coupled to a detector diode and an antenna and sized and shaped to match a predetermined frequency. The stub circuit is also designed to couple to the antenna such that a resulting phase is seen at the output, preferably 180° from that seen at the input. In addition, the stub circuit is structured to perform as an antenna, thus increasing the sensitivity of the overall circuit and maximizing efficiency and performance.
PCT/US2002/006315 2001-02-28 2002-02-28 Antenna matching circuit WO2002069490A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP02715019A EP1378058A2 (en) 2001-02-28 2002-02-28 Antenna matching circuit
JP2002568500A JP2004526359A (en) 2001-02-28 2002-02-28 Antenna matching circuit

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/797,539 2001-02-28
US09/797,539 US6738025B2 (en) 2001-02-28 2001-02-28 Antenna matching circuit

Publications (2)

Publication Number Publication Date
WO2002069490A2 WO2002069490A2 (en) 2002-09-06
WO2002069490A3 true WO2002069490A3 (en) 2002-12-19

Family

ID=25171125

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/006315 WO2002069490A2 (en) 2001-02-28 2002-02-28 Antenna matching circuit

Country Status (4)

Country Link
US (1) US6738025B2 (en)
EP (1) EP1378058A2 (en)
JP (1) JP2004526359A (en)
WO (1) WO2002069490A2 (en)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6356535B1 (en) * 1998-02-04 2002-03-12 Micron Technology, Inc. Communication systems and methods of communicating
US7710273B2 (en) 1999-09-02 2010-05-04 Round Rock Research, Llc Remote communication devices, radio frequency identification devices, wireless communication systems, wireless communication methods, radio frequency identification device communication methods, and methods of forming a remote communication device
US7180402B2 (en) * 2000-06-06 2007-02-20 Battelle Memorial Institute K1-53 Phase modulation in RF tag
US7081815B2 (en) * 2001-08-23 2006-07-25 Battelle Memorial Institute Radio frequency security system, method for a building facility or the like, and apparatus and methods for remotely monitoring the status of fire extinguishers
US6859190B2 (en) * 2002-06-04 2005-02-22 Intermec Ip Corp RFID tag with a quadrupler or N-tupler circuit for efficient RF to DC conversion
US7019617B2 (en) * 2002-10-02 2006-03-28 Battelle Memorial Institute Radio frequency identification devices, backscatter communication device wake-up methods, communication device wake-up methods and a radio frequency identification device wake-up method
US7760835B2 (en) 2002-10-02 2010-07-20 Battelle Memorial Institute Wireless communications devices, methods of processing a wireless communication signal, wireless communication synchronization methods and a radio frequency identification device communication method
US6914528B2 (en) * 2002-10-02 2005-07-05 Battelle Memorial Institute Wireless communication systems, radio frequency identification devices, methods of enhancing a communications range of a radio frequency identification device, and wireless communication methods
US6995655B2 (en) * 2002-10-02 2006-02-07 Battelle Memorial Institute Method of simultaneously reading multiple radio frequency tags, RF tags, and RF reader
US7155172B2 (en) * 2002-10-10 2006-12-26 Battelle Memorial Institute RFID receiver apparatus and method
US7106173B2 (en) 2003-01-03 2006-09-12 Battelle Memorial Institute Tags, wireless communication systems, tag communication methods, and wireless communications methods
US6989796B2 (en) * 2003-04-25 2006-01-24 Mobile Aspects Antenna arrangement and system
CA2532875A1 (en) * 2003-07-28 2005-03-03 Stemco Llc System and method for optimizing power usage in a radio frequency communication device
US20050087235A1 (en) * 2003-10-22 2005-04-28 Skorpik James R. Sensor assembly, system including RFID sensor assemblies, and method
US20050242962A1 (en) * 2004-04-29 2005-11-03 Lind Michael A Tag device, luggage tag, and method of manufacturing a tag device
US7348875B2 (en) * 2004-05-04 2008-03-25 Battelle Memorial Institute Semi-passive radio frequency identification (RFID) tag with active beacon
US7009181B1 (en) * 2004-08-31 2006-03-07 Battelle Memorial Institute Apparatus and method for OSL-based, remote radiation monitoring and spectrometry
US7375334B2 (en) * 2004-08-31 2008-05-20 Battelle Memorial Institute Apparatus and method for OSL-based, remote radiation monitoring and spectrometry
US7317382B2 (en) * 2004-12-13 2008-01-08 Battelle Memorial Institute Remote communications devices, wireless communications systems, and wireless communications methods
US7760073B2 (en) * 2005-01-04 2010-07-20 Battelle Memorial Institute RFID tag modification for full depth backscatter modulation
US7268742B2 (en) * 2005-03-22 2007-09-11 Mobile Aspects, Inc. Antenna arrangement
US7501947B2 (en) * 2005-05-04 2009-03-10 Tc License, Ltd. RFID tag with small aperture antenna
US7262701B1 (en) * 2005-05-23 2007-08-28 National Semiconductor Corporation Antenna structures for RFID devices
US9489813B1 (en) * 2006-09-22 2016-11-08 Michael L. Beigel System for location in environment and identification tag
US7564356B1 (en) 2006-10-06 2009-07-21 Tc License, Ltd. Interdigit AC coupling for RFID tags
US7787840B1 (en) * 2006-10-11 2010-08-31 Eugene Rzyski Shape memory alloy receiver
US20090015407A1 (en) * 2007-07-13 2009-01-15 Micron Technology, Inc. Rifid tags and methods of designing rfid tags
US7777630B2 (en) * 2007-07-26 2010-08-17 Round Rock Research, Llc Methods and systems of RFID tags using RFID circuits and antennas having unmatched frequency ranges
US8179232B2 (en) 2008-05-05 2012-05-15 Round Rock Research, Llc RFID interrogator with adjustable signal characteristics
US7852221B2 (en) * 2008-05-08 2010-12-14 Round Rock Research, Llc RFID devices using RFID circuits and antennas having unmatched frequency ranges
US8712334B2 (en) 2008-05-20 2014-04-29 Micron Technology, Inc. RFID device using single antenna for multiple resonant frequency ranges

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6140924A (en) * 1998-02-07 2000-10-31 Nat'l. Univ. of Singapore Rectifying antenna circuit
WO2000067373A1 (en) * 1999-05-03 2000-11-09 Trolley Scan (Pty) Limited Energy transfer in an electronic identification system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6400274B1 (en) * 1995-08-31 2002-06-04 Intermec Ip Corp. High-performance mobile power antennas
GB9616610D0 (en) * 1996-08-08 1996-09-25 Marconi Gec Ltd Interrogator circuit arrangement

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6140924A (en) * 1998-02-07 2000-10-31 Nat'l. Univ. of Singapore Rectifying antenna circuit
WO2000067373A1 (en) * 1999-05-03 2000-11-09 Trolley Scan (Pty) Limited Energy transfer in an electronic identification system

Also Published As

Publication number Publication date
EP1378058A2 (en) 2004-01-07
US20020118108A1 (en) 2002-08-29
WO2002069490A2 (en) 2002-09-06
JP2004526359A (en) 2004-08-26
US6738025B2 (en) 2004-05-18

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