EP1887587A1 - Ensemble de bobines - Google Patents

Ensemble de bobines Download PDF

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Publication number
EP1887587A1
EP1887587A1 EP06016903A EP06016903A EP1887587A1 EP 1887587 A1 EP1887587 A1 EP 1887587A1 EP 06016903 A EP06016903 A EP 06016903A EP 06016903 A EP06016903 A EP 06016903A EP 1887587 A1 EP1887587 A1 EP 1887587A1
Authority
EP
European Patent Office
Prior art keywords
coil
core
coils
coil arrangement
arrangement according
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.)
Withdrawn
Application number
EP06016903A
Other languages
German (de)
English (en)
Inventor
Carsten Schwetje
Alfred Laukat
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.)
Kaschke KG & Co GmbH
Original Assignee
Kaschke KG & Co GmbH
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 Kaschke KG & Co GmbH filed Critical Kaschke KG & Co GmbH
Priority to EP06016903A priority Critical patent/EP1887587A1/fr
Publication of EP1887587A1 publication Critical patent/EP1887587A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/29—Combinations of different interacting antenna units for giving 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
    • H01Q7/06—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 with core of ferromagnetic material
    • H01Q7/08—Ferrite rod or like elongated core
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00—Cores, Yokes, or armatures
    • H01F2003/005—Magnetic cores for receiving several windings with perpendicular axes, e.g. for antennae or inductive power transfer
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00—Cores, Yokes, or armatures

Definitions

  • the invention relates to a coil arrangement according to the preamble of claim 1.
  • Corresponding coil arrangements are used as transponder coils and as a rule have three coils whose coil axes are oriented differently and are usually perpendicular to one another.
  • Such 3D transponders are spatially effective in all directions and are generally held cuboid, wherein the coils are wound on a cuboid core of magnetically active material such as ferrite.
  • magnetically active material such as ferrite.
  • Object of the present invention is to provide a coil assembly of the type mentioned, which manages with higher sensitivity compared to known arrangements with at least the same space.
  • a cross-shaped coil core is provided on which two of the three transponder coils are wound. Opposite a cuboid core in the state In the art, the axes of these two coils are rotated 45 °, resulting in a larger usable core length. This results in an extension of the magnetic dipole formed by winding the core, so that overall the sensitivity of the arrangement is increased with constant or even smaller space. At the same time, less windings are required for the sensitivity of the device compared to known solutions.
  • the third coil so-called.
  • Frame coil to wind around the ends of the cross-shaped core, wherein the cross-shaped core has at its ends recesses for receiving the windings for the frame coil. This ensures that the frame coil is surrounded in the region of the ends of the cross-shaped core from three sides of magnetically active material without an air gap. In this way, in particular a concentration of magnetic field lines in the interior of the frame coil and thus a further increase in the sensitivity of the arrangement can be achieved.
  • FIG. 1 shows a perspective top view of the coil arrangement according to the invention.
  • This comprises a core 4, which consists of a magnetically active material, preferably of ferrite, and is formed of two crossed sections 5 and 6, which are oriented in the direction of the axes X and Y, respectively.
  • the coils 1 and 2 are wound, in the example shown, the coil 1 is wound on the core portion 5 and the coil 2 on the core portion 6.
  • the coils 1, 2 are arranged on both sides of the crossing portion 4a of the core 4, wherein the lying on both sides of the crossing portion 4a parts of a coil 1 and 2 respectively in the crossing region 4a by a corresponding compound 1a and 2a are coupled together (see Figure 2).
  • For contacting the coils 1, 2, 3 are corresponding terminal pads 7 (see Figure 3).
  • the core sections 5, 6 have ends 5a, 5b, 6a, 6b, around which the frame coil 3 is wound, so that the coil axis of the frame coil 3 extends approximately in the Z direction and thus perpendicular to the coil axes of the other two coils 1, 2 ,
  • respective recesses 5c, 5d, 6c and 6d are respectively provided in said ends 5a, 5b, 6a, 6b, which recesses serve to receive the windings of the frame coil 3.
  • the frame coil 3 engages in the recesses 5d, 6d, the ends 6b, 5b projecting laterally relative to the frame coil 3.
  • the frame coil 3 can thus be surrounded in the region of the ends of the cross-shaped core 4 forming core sections 5, 6 of the magnetically active core material, in particular air pockets between coil 3 and core 4 can be largely avoided.
  • the proposed coil arrangement can be - compared with known 3D transponders - realize a much more sensitive transponder with the same space, since the coils in the X and Y direction, a longer core of magnetically active material is available and the frame coil (Z- Direction) is embedded in the core. Likewise, the number of coil turns required can be reduced by the larger magnetically active core length in the X or Y direction with the same size while maintaining the sensitivity.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Coils Or Transformers For Communication (AREA)
EP06016903A 2006-08-12 2006-08-12 Ensemble de bobines Withdrawn EP1887587A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06016903A EP1887587A1 (fr) 2006-08-12 2006-08-12 Ensemble de bobines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06016903A EP1887587A1 (fr) 2006-08-12 2006-08-12 Ensemble de bobines

Publications (1)

Publication Number Publication Date
EP1887587A1 true EP1887587A1 (fr) 2008-02-13

Family

ID=37450893

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06016903A Withdrawn EP1887587A1 (fr) 2006-08-12 2006-08-12 Ensemble de bobines

Country Status (1)

Country Link
EP (1) EP1887587A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2131444A1 (fr) * 2008-06-03 2009-12-09 Sumida Corporation Bobine d'antenne pour la réception d'un champ magnétique externe
RU2573180C1 (ru) * 2014-10-13 2016-01-20 Федеральное государственное унитарное предприятие "Всероссийский научно-исследовательский институт автоматики им. Н.Л. Духова" (ФГУП "ВНИИА") Компактное широкополосное трёхкомпонентное приёмное антенное устройство

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2732950A1 (de) * 1977-07-21 1979-02-01 Ulrich Kebbel Anordnung fuer rueckwirkungsarme elektromagnetische abstandsmessung
DE19718423A1 (de) * 1997-04-30 1998-11-05 Siemens Ag Tragbarer Signalempfänger
DE10055404A1 (de) * 2000-03-09 2001-09-13 Abb Research Ltd Anordnung zur Erzeugung elektrischer Energie aus einem Magnetfeld
WO2005045992A1 (fr) * 2003-11-03 2005-05-19 Neosid Pemetzrieder Gmbh & Co.Kg Composant miniature inductif, notamment antenne
WO2005088767A1 (fr) * 2004-03-12 2005-09-22 Sumida Corporation Antenne à trois axes, unité d’antenne, et dispositif de réception
EP1601051A2 (fr) * 2002-06-27 2005-11-30 Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho Antenne cadre monopuce à plusieurs axes

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2732950A1 (de) * 1977-07-21 1979-02-01 Ulrich Kebbel Anordnung fuer rueckwirkungsarme elektromagnetische abstandsmessung
DE19718423A1 (de) * 1997-04-30 1998-11-05 Siemens Ag Tragbarer Signalempfänger
DE10055404A1 (de) * 2000-03-09 2001-09-13 Abb Research Ltd Anordnung zur Erzeugung elektrischer Energie aus einem Magnetfeld
EP1601051A2 (fr) * 2002-06-27 2005-11-30 Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho Antenne cadre monopuce à plusieurs axes
WO2005045992A1 (fr) * 2003-11-03 2005-05-19 Neosid Pemetzrieder Gmbh & Co.Kg Composant miniature inductif, notamment antenne
WO2005088767A1 (fr) * 2004-03-12 2005-09-22 Sumida Corporation Antenne à trois axes, unité d’antenne, et dispositif de réception
EP1727236A1 (fr) * 2004-03-12 2006-11-29 Sumida Corporation Antenne trois axes, unit d'antenne, et dispositif de reception

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2131444A1 (fr) * 2008-06-03 2009-12-09 Sumida Corporation Bobine d'antenne pour la réception d'un champ magnétique externe
US8077106B2 (en) 2008-06-03 2011-12-13 Sumida Corporation Receiving antenna coil
RU2573180C1 (ru) * 2014-10-13 2016-01-20 Федеральное государственное унитарное предприятие "Всероссийский научно-исследовательский институт автоматики им. Н.Л. Духова" (ФГУП "ВНИИА") Компактное широкополосное трёхкомпонентное приёмное антенное устройство

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