AU3741497A - Magnetic field antenna and method for field cancellation - Google Patents

Magnetic field antenna and method for field cancellation

Info

Publication number
AU3741497A
AU3741497A AU37414/97A AU3741497A AU3741497A AU 3741497 A AU3741497 A AU 3741497A AU 37414/97 A AU37414/97 A AU 37414/97A AU 3741497 A AU3741497 A AU 3741497A AU 3741497 A AU3741497 A AU 3741497A
Authority
AU
Australia
Prior art keywords
field
cancellation
magnetic field
antenna
field antenna
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.)
Abandoned
Application number
AU37414/97A
Other languages
English (en)
Inventor
Stephen Leigh Kuffner
Richard Stanley Rachwalski
Mark Allen Schamberger
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.)
Motorola Solutions Inc
Original Assignee
Motorola 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
Application filed by Motorola Inc filed Critical Motorola Inc
Publication of AU3741497A publication Critical patent/AU3741497A/en
Abandoned legal-status Critical Current

Links

Classifications

    • 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
AU37414/97A 1996-07-29 1997-07-25 Magnetic field antenna and method for field cancellation Abandoned AU3741497A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US68175796A 1996-07-29 1996-07-29
US08681757 1996-07-29
PCT/US1997/013240 WO1998005088A1 (fr) 1996-07-29 1997-07-25 Antenne a champ magnetique et procede d'annulation de ce champ

Publications (1)

Publication Number Publication Date
AU3741497A true AU3741497A (en) 1998-02-20

Family

ID=24736675

Family Applications (1)

Application Number Title Priority Date Filing Date
AU37414/97A Abandoned AU3741497A (en) 1996-07-29 1997-07-25 Magnetic field antenna and method for field cancellation

Country Status (2)

Country Link
AU (1) AU3741497A (fr)
WO (1) WO1998005088A1 (fr)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6362737B1 (en) 1998-06-02 2002-03-26 Rf Code, Inc. Object Identification system with adaptive transceivers and methods of operation
ATE292329T1 (de) 1999-09-20 2005-04-15 Fractus Sa Mehrebenenantenne
EP1258054B1 (fr) 2000-01-19 2005-08-17 Fractus, S.A. Antennes miniatures de remplissage de l'espace
GB2376801B (en) * 2001-06-22 2005-10-19 * Motorola Israel Limited R F Radiators and Transmitters
US9755314B2 (en) 2001-10-16 2017-09-05 Fractus S.A. Loaded antenna
US6861993B2 (en) 2002-11-25 2005-03-01 3M Innovative Properties Company Multi-loop antenna for radio-frequency identification
US7417599B2 (en) 2004-02-20 2008-08-26 3M Innovative Properties Company Multi-loop antenna for radio frequency identification (RFID) communication
US7421245B2 (en) 2004-02-20 2008-09-02 3M Innovative Properties Company Field-shaping shielding for radio frequency identification (RFID) system
US7268687B2 (en) 2004-03-23 2007-09-11 3M Innovative Properties Company Radio frequency identification tags with compensating elements
US7132946B2 (en) 2004-04-08 2006-11-07 3M Innovative Properties Company Variable frequency radio frequency identification (RFID) tags
US8738103B2 (en) 2006-07-18 2014-05-27 Fractus, S.A. Multiple-body-configuration multimedia and smartphone multifunction wireless devices
JP2013125998A (ja) * 2011-12-13 2013-06-24 Nippon Telegr & Teleph Corp <Ntt> ループアンテナ
JP6392715B2 (ja) * 2015-08-17 2018-09-19 日本電信電話株式会社 ループアンテナアレイ群

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL78888C (fr) * 1947-12-23
US3683389A (en) * 1971-01-20 1972-08-08 Corning Glass Works Omnidirectional loop antenna array
GB8627241D0 (en) * 1986-11-14 1986-12-17 Chubb Lips Nederland Bv Identification token
US5142292A (en) * 1991-08-05 1992-08-25 Checkpoint Systems, Inc. Coplanar multiple loop antenna for electronic article surveillance systems

Also Published As

Publication number Publication date
WO1998005088A1 (fr) 1998-02-05

Similar Documents

Publication Publication Date Title
AU3298999A (en) System and method for increasing the isolation characteristic of an antenna
AU1830995A (en) Method and apparatus for measurement-while-drilling utilizing improved antennas
AU2834897A (en) Device and method for transmitting information by electromagnetic waves
AU7458398A (en) Microwave antenna system and method
EP0776011A3 (fr) Mémoire magnétique et méthode d&#39;utilisation
AU1561495A (en) Superconducting magnetic coil
EP0831685A3 (fr) Revêtement de blindage magnétique, sa méthode de fabrication ainsi que son usage aux câbles
EP0763265A4 (fr) Antenne et son procede de fabrication
AU3540595A (en) Superconducting magnetic coil
AU3741497A (en) Magnetic field antenna and method for field cancellation
AU2056897A (en) Strapped open magnetic structure
GB2317995B (en) Antenna assembly and method for attaching an antenna
AU4568197A (en) Magnetic tags and techniques
AU7850098A (en) Magnetic tags
AU3584497A (en) System and method for preventing cellular fraud
AU2221695A (en) An antenna
AU3291795A (en) Method and device for cancelling received frequency offset
AU1071900A (en) Magnetic separation method and apparatus
AU6624598A (en) Method and apparatus for profiling magnetic flux
AU4375099A (en) Location method and radio system
AU1818497A (en) Arrangement and method for communication
AU4394497A (en) Magnetic crossed-loop antenna
AU2707297A (en) Electromagnetic valve
AU4810096A (en) Magnetic and/or magnetizable winding support
AU2413295A (en) Magnetic field cancelling system