EP1887587A1 - Coil arrangement - Google Patents

Coil arrangement Download PDF

Info

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Withdrawn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)
French (fr)
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/en
Publication of EP1887587A1 publication Critical patent/EP1887587A1/en
Withdrawn legal-status Critical Current

Links

Images

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)

Abstract

Coil arrangement with at least three coils (1-3) comprises a core (4) of magnetic material with two core sections (5, 6) that overlap in a cross-like manner and are each surrounded by one of the coils (1, 2) so that the respective core section lies essentially parallel to the axis (X, Y) of the associated coil. Preferred Features: The core contains ferrite. The third coil serves as a frame wound around the end regions (5a, 5b, 6a, 6b) of the core sections.

Description

Die Erfindung betrifft eine Spulenanordnung nach dem Oberbegriff von Anspruch 1.The invention relates to a coil arrangement according to the preamble of claim 1.

Entsprechende Spulenanordnungen werden als Transponderspulen verwendet und weisen in aller Regel drei Spulen auf, deren Spulenachsen verschieden orientiert sind und zumeist senkrecht zueinander stehen. Derartige 3D-Transponder sind räumlich in alle Richtungen wirksam und sind in der Regel quaderförmig gehalten, wobei die Spulen auf einem quaderförmigen Kern aus magnetisch wirksamem Material wie Ferrit aufgewickelt sind. Im Zuge der fortschreitenden technologischen Entwicklungen, insbesondere der Miniaturisierung, sind die Anforderungen an die Empfindlichkeit entsprechender Bauteile in den vergangenen Jahren ständig gestiegen.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. In the course of the advancing technological developments, in particular the miniaturization, the demands on the sensitivity of corresponding components in the past years have been constantly increasing.

Aufgabe der vorliegenden Erfindung ist es, eine Spulenanordnung der eingangs genannten Art anzugeben, die bei höherer Empfindlichkeit im Vergleich zu bekannten Anordnungen mit wenigstens demselben Bauraum auskommt.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.

Gelöst wird diese Aufgabe mit den Merkmalen des Anspruchs 1. Weitere vorteilhafte Ausführungsformen finden sich in den Unteransprüchen.This object is achieved with the features of claim 1. Further advantageous embodiments can be found in the subclaims.

Erfindungsgemäß ist ein kreuzförmiger Spulenkern vorgesehen, auf welchen zwei der drei Transponderspulen aufgewikkelt sind. Gegenüber einem quaderförmigen Kern beim Stand der Technik sind die Achsen dieser beiden Spulen um 45° gedreht, so daß eine größere nutzbare Kernlänge resultiert. Daraus ergibt sich gleichzeitig eine Verlängerung des durch Umwicklung des Kerns gebildeten magnetischen Dipols, so daß insgesamt die Empfindlichkeit der Anordnung bei gleichbleibendem oder sogar geringerem Bauraum gesteigert wird. Gleichzeitig werden für die Empfindlichkeit der Anordnung - verglichen mit bekannten Lösungen - weniger Wicklungen benötigt.According to the invention, 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.

Ergänzend ist zudem vorgesehen, die dritte Spule, sog. Rahmenspule, um die Enden des kreuzförmigen Kerns zu wickeln, wobei der kreuzförmige Kern an seinen Enden Ausnehmungen zur Aufnahme der Wicklungen für die Rahmenspule aufweist. Hierdurch wird erreicht, daß die Rahmenspule im Bereich der Enden des kreuzförmigen Kerns von drei Seiten von magnetisch wirksamem Material ohne Luftspalt umgeben ist. Hierdurch kann insbesondere eine Konzentration magnetischer Feldlinien im Innenraum der Rahmenspule und damit eine weitere Steigerung der Empfindlichkeit der Anordnung erreicht werden.In addition, it is also provided, 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.

Die Erfindung wird nachfolgend anhand einer in den Figuren 1 bis 3 gezeigten Ausführungsform schematisch näher erläutert:

Figur 1 -
zeigt eine erfindungsgemäße Spulenanordnung in perspektivischer Ansicht;
Figur 2 -
zeigt die Spulenanordnung als Draufsicht;
Figur 3 -
zeigt die Spulenanordnung aus Figur 2 in seitlicher Ansicht.
The invention will be explained in more detail below with reference to an embodiment shown in FIGS. 1 to 3:
FIG. 1 -
shows a coil arrangement according to the invention in a perspective view;
FIG. 2 -
shows the coil assembly as a plan view;
FIG. 3 -
shows the coil assembly of Figure 2 in a side view.

In Figur 1 ist eine perspektivische Draufsicht auf die erfindungsgemäße Spulenanordnung dargestellt. Diese weist einen Kern 4 auf, der aus einem magnetisch wirksamen Material, bevorzugt aus Ferrit, besteht und aus zwei gekreuzten Abschnitten 5 und 6 gebildet wird, die in Richtung der Achsen X bzw. Y orientiert sind. Auf den Kern 4 sind die Spulen 1 und 2 aufgewickelt, wobei im gezeigten Beispiel die Spule 1 auf den Kernabschnitt 5 und die Spule 2 auf den Kernabschnitt 6 aufgewickelt ist. Die Spulen 1, 2 sind zu beiden Seiten des Kreuzungsbereichs 4a des Kerns 4 angeordnet, wobei die zu beiden Seiten des Kreuzungsbereichs 4a liegenden Teile einer Spule 1 bzw. 2 jeweils im Kreuzungsbereich 4a durch eine entsprechende Verbindung 1a bzw. 2a miteinander gekoppelt sind (vgl. Figur 2). Zur Kontaktierung der Spulen 1, 2, 3 dienen entsprechende Anschlußpads 7 (vgl. Figur 3).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. On the core 4, 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).

Die Kernabschnitte 5, 6 weisen Enden 5a, 5b, 6a, 6b auf, um welche die Rahmenspule 3 gewickelt ist, so daß die Spulenachse der Rahmenspule 3 etwa in Z-Richtung und damit senkrecht zu den Spulenachsen der beiden anderen Spulen 1, 2 verläuft. Hierzu sind in den genannten Enden 5a, 5b, 6a, 6b jeweils entsprechende Ausnehmungen 5c, 5d, 6c bzw. 6d vorgesehen, die zur Aufnahme der Wicklungen der Rahmenspule 3 dienen. Wie insbesondere in der Figur 3 gezeigt, greift die Rahmenspule 3 in die Ausnehmungen 5d, 6d ein, wobei die Enden 6b, 5b gegenüber der Rahmenspule 3 seitlich hervorstehen. Die Rahmenspule 3 kann so im Bereich der Enden der den kreuzförmigen Kern 4 bildenden Kernabschnitte 5, 6 vom magnetisch wirksamen Kernmaterial umgeben werden, wobei insbesondere Lufteinschlüsse zwischen Spule 3 und Kern 4 weitestgehend vermieden werden können.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 , For this purpose, 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. As shown particularly in FIG. 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.

Mit der vorgeschlagenen Spulenanordnung läßt sich - verglichen mit bekannten 3D-Transpondern - ein wesentlich empfindlicherer Transponder bei gleichem Bauraum verwirklichen, da für die Spulen in X- und Y-Richtung ein längerer Kern aus magnetisch wirksamem Material zur Verfügung steht und die Rahmenspule (Z-Richtung) in den Kern eingelassen ist. Ebenso kann durch die größere magnetisch wirksame Kernlänge in X- bzw. Y-Richtung bei gleicher Baugröße unter Beibehaltung der Empfindlichkeit die Zahl der erforderlichen Spulenwindungen reduziert werden.With 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.

Claims (5)

Spulenanordnung mit wenigstens drei Spulen (1, 2, 3), deren Achsen paarweise im wesentlichen senkrecht zueinander verlaufen und deren Wicklungen um einen Kern (4) aus magnetisch wirksamen Material angeordnet sind,
dadurch gekennzeichnet,
daß der Kern (4) kreuzförmig mit zwei sich überkreuzenden Kernabschnitten (5, 6) ausgebildet ist, um welche jeweils eine der Spulen (1, 2) so angeordnet ist, daß die Ausrichtung des jeweiligen Kernabschnitts (5 bzw. 6) im wesentlichen parallel zur Achse (X, Y) der zugehörigen Spule (1 bzw. 2) vorgesehen ist.Coil arrangement with at least three coils (1, 2, 3) whose axes run in pairs substantially perpendicular to one another and whose windings are arranged around a core (4) of magnetically active material,
characterized,
in that the core (4) is formed in a cross shape with two intersecting core sections (5, 6) about which each of the coils (1, 2) is arranged such that the orientation of the respective core section (5 or 6) is substantially parallel to the axis (X, Y) of the associated coil (1 or 2) is provided. Spulenanordnung nach Anspruch 1,
dadurch gekennzeichnet,
daß die dritte Spule (3) der wenigstens drei Spulen (1, 2, 3) als Rahmenspule ausgebildet ist, die um die Endbereiche (5a, 5b) bzw. (6a, 6b) der Kernabschnitte (5, 6) gewickelt ist.Coil arrangement according to claim 1,
characterized,
in that the third coil (3) of the at least three coils (1, 2, 3) is designed as a frame coil which is wound around the end regions (5a, 5b) or (6a, 6b) of the core sections (5, 6). Spulenanordnung nach Anspruch 2,
dadurch gekennzeichnet,
daß der Kern (4) in den Endbereichen (5a, 5b) bzw. (6a, 6b) Ausnehmungen (5c, 5d) bzw. (6c, 6d) zur Aufnahme von Wicklungen der dritten Spule (3) aufweist.Coil arrangement according to Claim 2,
characterized,
that the core (4) in the end regions (5a, 5b) and (6a, 6b) recesses (5c, 5d) and (6c, 6d) for receiving windings of the third coil (3). Spulenanordnung nach einem der vorherigen Ansprüche,
dadurch gekennzeichnet,
daß der Kern (4) Ferrit aufweist.Coil arrangement according to one of the preceding claims,
characterized,
that the core (4) has ferrite. Spulenanordnung nach einem der vorherigen Ansprüche,
dadurch gekennzeichnet,
daß die jedem Kernabschnitt (5, 6) zugeordnete Spule (1, 2) durch zwei dem Kreuzungsbereich (4a) des Kerns (4) gegenüberliegende Spulenteile gebildet ist, welche im Kreuzungsbereich (4a) durch jeweils eine Verbindung (1a, 2a) miteinander gekoppelt sind.Coil arrangement according to one of the preceding claims,
characterized,
in that the coil (1, 2) associated with each core section (5, 6) is formed by two coil parts lying opposite the crossing region (4a) of the core (4), which are coupled together in the crossing region (4a) by a respective connection (1a, 2a) are.
EP06016903A 2006-08-12 2006-08-12 Coil arrangement Withdrawn EP1887587A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06016903A EP1887587A1 (en) 2006-08-12 2006-08-12 Coil arrangement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06016903A EP1887587A1 (en) 2006-08-12 2006-08-12 Coil arrangement

Publications (1)

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

Family

ID=37450893

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06016903A Withdrawn EP1887587A1 (en) 2006-08-12 2006-08-12 Coil arrangement

Country Status (1)

Country Link
EP (1) EP1887587A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2131444A1 (en) * 2008-06-03 2009-12-09 Sumida Corporation Antenna coil for receiving an external magnetic field
RU2573180C1 (en) * 2014-10-13 2016-01-20 Федеральное государственное унитарное предприятие "Всероссийский научно-исследовательский институт автоматики им. Н.Л. Духова" (ФГУП "ВНИИА") Compact broadband three-component receiving antenna device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2732950A1 (en) * 1977-07-21 1979-02-01 Ulrich Kebbel Miniature non-reactive electromagnetic range meter - uses crossed coil transceivers suitable for use with mechanical or biological subjects
DE19718423A1 (en) * 1997-04-30 1998-11-05 Siemens Ag Portable signal receiver
DE10055404A1 (en) * 2000-03-09 2001-09-13 Abb Research Ltd Arrangement for generating electrical energy from magnetic field has winding arrangement with central magnetically active core, three or more windings with orthogonal intersecting axes
WO2005045992A1 (en) * 2003-11-03 2005-05-19 Neosid Pemetzrieder Gmbh & Co.Kg Inductive miniature structural element, especially antenna
WO2005088767A1 (en) * 2004-03-12 2005-09-22 Sumida Corporation Three-axis antenna, antenna unit, and receiving device
EP1601051A2 (en) * 2002-06-27 2005-11-30 Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho Multiaxial loop antenna chip

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2732950A1 (en) * 1977-07-21 1979-02-01 Ulrich Kebbel Miniature non-reactive electromagnetic range meter - uses crossed coil transceivers suitable for use with mechanical or biological subjects
DE19718423A1 (en) * 1997-04-30 1998-11-05 Siemens Ag Portable signal receiver
DE10055404A1 (en) * 2000-03-09 2001-09-13 Abb Research Ltd Arrangement for generating electrical energy from magnetic field has winding arrangement with central magnetically active core, three or more windings with orthogonal intersecting axes
EP1601051A2 (en) * 2002-06-27 2005-11-30 Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho Multiaxial loop antenna chip
WO2005045992A1 (en) * 2003-11-03 2005-05-19 Neosid Pemetzrieder Gmbh & Co.Kg Inductive miniature structural element, especially antenna
WO2005088767A1 (en) * 2004-03-12 2005-09-22 Sumida Corporation Three-axis antenna, antenna unit, and receiving device
EP1727236A1 (en) * 2004-03-12 2006-11-29 Sumida Corporation Three-axis antenna, antenna unit, and receiving device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2131444A1 (en) * 2008-06-03 2009-12-09 Sumida Corporation Antenna coil for receiving an external magnetic field
US8077106B2 (en) 2008-06-03 2011-12-13 Sumida Corporation Receiving antenna coil
RU2573180C1 (en) * 2014-10-13 2016-01-20 Федеральное государственное унитарное предприятие "Всероссийский научно-исследовательский институт автоматики им. Н.Л. Духова" (ФГУП "ВНИИА") Compact broadband three-component receiving antenna device

Similar Documents

Publication Publication Date Title
DE3202704C2 (en) Solenoid actuator
EP0780004B1 (en) Circuit with a chip card module and a coil connected therewith
EP1010014B1 (en) Magnet core
DE102004025105A1 (en) Stator and insulating bobbin and manufacturing process for the stator
DE10114182C2 (en) Inductive component with wire guide slots
DE3018552C2 (en)
DE102013113244A1 (en) Coil for an inductive energy transfer system
DE4115394A1 (en) THICK LAYER MAGNETIC HEAD
DE102005003888A1 (en) Joint construction for a micromirror device
DE2854878C2 (en) Electromagnetic polarized drive device
EP1887587A1 (en) Coil arrangement
AT414075B (en) COIL BODY AND COIL ASSEMBLY
DE102019208383A1 (en) COIL COMPONENT
DE2748070C2 (en) Electromagnetic transducer
DE2944775C2 (en) Deflection yoke for a cathode ray tube
DE3490482C2 (en)
EP1634308A2 (en) Inductive miniature component, in particular an antenna
DE3510638C1 (en) Inductive miniature component, especially a miniature coil, and a method for producing such a component
EP0256583A1 (en) Transformer with a magnetic shield
WO2019029767A1 (en) Winding post
DE2816041C2 (en) Tuning fork and process for their manufacture
DE1614728B1 (en) Magnetically actuated multiple protection tube armature contact
EP0710964A2 (en) Transformer for generating two high tensions showing great potential difference
DE4232227C2 (en) relay
DE2639516C2 (en) Sliders for potentiometers or slider tracks

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR MK YU

AKX Designation fees paid
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20080814

REG Reference to a national code

Ref country code: DE

Ref legal event code: 8566