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WO2003077364A3 - Antenna system for a transponder radio-frequency reading device - Google Patents

Antenna system for a transponder radio-frequency reading device Download PDF

Info

Publication number
WO2003077364A3
WO2003077364A3 PCT/EP2003/002553 EP0302553W WO03077364A3 WO 2003077364 A3 WO2003077364 A3 WO 2003077364A3 EP 0302553 W EP0302553 W EP 0302553W WO 03077364 A3 WO03077364 A3 WO 03077364A3
Authority
WO
WIPO (PCT)
Prior art keywords
antenna
reading device
antenna system
frequency reading
transponder radio
Prior art date
Application number
PCT/EP2003/002553
Other languages
French (fr)
Other versions
WO2003077364A2 (en
Inventor
Richard John Benn
Original Assignee
Gantle Trading & Services Lda
Richard John Benn
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 Gantle Trading & Services Lda, Richard John Benn filed Critical Gantle Trading & Services Lda
Priority to AU2003218742A priority Critical patent/AU2003218742A1/en
Publication of WO2003077364A2 publication Critical patent/WO2003077364A2/en
Publication of WO2003077364A3 publication Critical patent/WO2003077364A3/en

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10009—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves
    • G06K7/10316—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers
    • G06K7/10346—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation sensing by radiation using wavelengths larger than 0.1 mm, e.g. radio-waves or microwaves using at least one antenna particularly designed for interrogating the wireless record carriers the antenna being of the far field type, e.g. HF types or dipoles
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • General Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Details Of Aerials (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

An antenna system (3) for a transponder radio­frequency reading device (1) ; the antenna system (3) having a flat, annular, circular first antenna (4) connected to a first tuning circuit (6) set to 13.56 MHz frequency; an emitting/receiving system (7) for generating an alternating electric current in the first tuning circuit (6); and a flat, annular, polygonal second antenna (8), which is connected to a nonpowered second tuning circuit (9) set to 13.56 MHz frequency, is parallel to the first antenna (4), and is separated from the first antenna (4) by a distance ranging from 3 to 30 mm, so as to be coupled magnetically to the first antenna (4).
PCT/EP2003/002553 2002-03-13 2003-03-12 Antenna system for a transponder radio-frequency reading device WO2003077364A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003218742A AU2003218742A1 (en) 2002-03-13 2003-03-12 Antenna system for a transponder radio-frequency reading device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PT10273902A PT102739A (en) 2002-03-13 2002-03-13 ANTENNA SYSTEM FOR A TRANSPONDER RADIOFREQUENCY READING DEVICE
PT102739 2002-03-13

Publications (2)

Publication Number Publication Date
WO2003077364A2 WO2003077364A2 (en) 2003-09-18
WO2003077364A3 true WO2003077364A3 (en) 2004-03-11

Family

ID=27800851

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2003/002553 WO2003077364A2 (en) 2002-03-13 2003-03-12 Antenna system for a transponder radio-frequency reading device

Country Status (3)

Country Link
AU (1) AU2003218742A1 (en)
PT (1) PT102739A (en)
WO (1) WO2003077364A2 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9130602B2 (en) 2006-01-18 2015-09-08 Qualcomm Incorporated Method and apparatus for delivering energy to an electrical or electronic device via a wireless link
US8447234B2 (en) 2006-01-18 2013-05-21 Qualcomm Incorporated Method and system for powering an electronic device via a wireless link
JP4239205B2 (en) * 2006-06-08 2009-03-18 ソニー・エリクソン・モバイルコミュニケーションズ株式会社 Mobile communication terminal device
US8378522B2 (en) 2007-03-02 2013-02-19 Qualcomm, Incorporated Maximizing power yield from wireless power magnetic resonators
US9774086B2 (en) 2007-03-02 2017-09-26 Qualcomm Incorporated Wireless power apparatus and methods
US9124120B2 (en) 2007-06-11 2015-09-01 Qualcomm Incorporated Wireless power system and proximity effects
EP2176939B1 (en) 2007-08-09 2017-09-13 Qualcomm Incorporated Increasing the q factor of a resonator
EP2201641A1 (en) 2007-09-17 2010-06-30 Qualcomm Incorporated Transmitters and receivers for wireless energy transfer
CN101842963B (en) 2007-10-11 2014-05-28 高通股份有限公司 Wireless power transfer using magneto mechanical systems
US8629576B2 (en) 2008-03-28 2014-01-14 Qualcomm Incorporated Tuning and gain control in electro-magnetic power systems
US9601267B2 (en) 2013-07-03 2017-03-21 Qualcomm Incorporated Wireless power transmitter with a plurality of magnetic oscillators
US10812148B1 (en) * 2020-03-06 2020-10-20 Avid Indentification Systems, Inc. Variable-Q antenna coil circuit for RFID applications

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991015878A1 (en) * 1990-04-09 1991-10-17 Adalbert Kopera Antenna assembly
US5225847A (en) * 1989-01-18 1993-07-06 Antenna Research Associates, Inc. Automatic antenna tuning system
EP0704928A2 (en) * 1994-09-30 1996-04-03 Hughes Identification Devices, Inc. RF transponder system with parallel resonant interrogation and series resonant response
EP0821430A2 (en) * 1996-07-23 1998-01-28 Motorola, Inc. Loop antenna
US5963173A (en) * 1997-12-05 1999-10-05 Sensormatic Electronics Corporation Antenna and transmitter arrangement for EAS system
US6300914B1 (en) * 1999-08-12 2001-10-09 Apti, Inc. Fractal loop antenna

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5225847A (en) * 1989-01-18 1993-07-06 Antenna Research Associates, Inc. Automatic antenna tuning system
WO1991015878A1 (en) * 1990-04-09 1991-10-17 Adalbert Kopera Antenna assembly
EP0704928A2 (en) * 1994-09-30 1996-04-03 Hughes Identification Devices, Inc. RF transponder system with parallel resonant interrogation and series resonant response
EP0821430A2 (en) * 1996-07-23 1998-01-28 Motorola, Inc. Loop antenna
US5963173A (en) * 1997-12-05 1999-10-05 Sensormatic Electronics Corporation Antenna and transmitter arrangement for EAS system
US6300914B1 (en) * 1999-08-12 2001-10-09 Apti, Inc. Fractal loop antenna

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
CARR J J: "SMALL LOOP ANTANNAS FOR MW AM BCB, LFAND VLF RECEPTION PART 1 - INTRODUCTION AND THEORETICAL BACKGROUND", ELEKTOR ELECTRONICS, ELEKTOR PUBLISHERS LTD. CANTERBURY, GB, VOL. 20, NR. 223, PAGE(S) 58-63, ISSN: 0268-4519, XP000483471 *

Also Published As

Publication number Publication date
AU2003218742A1 (en) 2003-09-22
WO2003077364A2 (en) 2003-09-18
PT102739A (en) 2003-09-30

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