EP1750326B1 - Antenna arrangement - Google Patents

Antenna arrangement Download PDF

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Publication number
EP1750326B1
EP1750326B1 EP05016678A EP05016678A EP1750326B1 EP 1750326 B1 EP1750326 B1 EP 1750326B1 EP 05016678 A EP05016678 A EP 05016678A EP 05016678 A EP05016678 A EP 05016678A EP 1750326 B1 EP1750326 B1 EP 1750326B1
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EP
European Patent Office
Prior art keywords
antenna
cable harness
antenna lead
accordance
combination
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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.)
Active
Application number
EP05016678A
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German (de)
French (fr)
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EP1750326A1 (en
Inventor
Alexander Dr. Ioffe
Jochen Suck
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Delphi Technologies Inc
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Delphi Technologies Inc
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Publication date
Application filed by Delphi Technologies Inc filed Critical Delphi Technologies Inc
Priority to EP05016678A priority Critical patent/EP1750326B1/en
Priority to AT05016678T priority patent/ATE383665T1/en
Priority to DE502005002506T priority patent/DE502005002506D1/en
Publication of EP1750326A1 publication Critical patent/EP1750326A1/en
Application granted granted Critical
Publication of EP1750326B1 publication Critical patent/EP1750326B1/en
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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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H01Q1/32—Adaptation for use in or on road or rail vehicles
    • H01Q1/3208—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used
    • H01Q1/3233—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used particular used as part of a sensor or in a security system, e.g. for automotive radar, navigation systems
    • H01Q1/3241—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used particular used as part of a sensor or in a security system, e.g. for automotive radar, navigation systems particular used in keyless entry systems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H01Q1/32—Adaptation for use in or on road or rail vehicles
    • H01Q1/325—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle
    • H01Q1/3291—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle mounted in or on other locations inside the vehicle or vehicle body
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/44—Details of, or arrangements associated with, antennas using equipment having another main function to serve additionally as an antenna, e.g. means for giving an antenna an aesthetic aspect
    • H01Q1/46—Electric supply lines or communication lines

Definitions

  • the invention relates to a combination of an antenna conductor and a wiring harness, in particular for a vehicle, a vehicle with such a combination, a system for wireless communication and a use of the system.
  • bidirectional radio frequency communication is used between an antenna device (or antenna) and a key element.
  • a possibly signal-carrying magnetic field can be generated and detected when there is a suitably designed transceiver in this magnetic field.
  • EP 1 363 353 A1 describes this loop-shaped antennas, which are arranged for example on the floor of a motor vehicle around the trunk or around the passenger compartment around. It must be such loops according to EP 1 548 871 A1 not be closed, but may include individual branches, which are on the one hand connected to an antenna control device and on the other hand grounded to the vehicle body. With appropriate arrangement of the individual branches, a part of the loop is formed in this way by the metallic connection via the vehicle body.
  • the individual branches of the antenna conductor may be integrated into a wire harness as used in vehicles to route power or data signals to the various elements of the vehicle.
  • Integration of the antenna conductor into a wiring harness results in its position not being accurately defined, for example, with respect to nearby body panels, since the position of the antenna conductor in the wiring harness is not precisely defined and may be different.
  • this position inaccuracy has an impact on the precision and reliability of, for example, a keyless system powered by the antenna. This is especially true when the loop is closed by a part of the body.
  • US-A-2,899,549 describes an antenna wrapped around a headphone cable for a radio.
  • the object of the present invention is to enable an antenna which provides precise and reproducible operation without requiring too much effort in positioning the antenna conductor.
  • the arrangement according to the invention is intended for devices which have at least one cable harness.
  • the combination according to the invention can be used in vehicles.
  • the arrangement comprises an antenna conductor which is wound in a spiral around the cable harness in at least a portion of its length in a plurality of turns in the manner of a coil.
  • the antenna conductor can simply be wrapped around the harness, thereby maintaining its position with respect to the harness Harness is precisely defined.
  • An integration in the wiring harness taking into account a precise positioning is therefore not necessary. If the cable harness is laid in the vehicle, for example, a periodically changing distance of the antenna conductor arises in this way to an adjacent metallic body surface. On average, therefore, the distance from the adjacent metallic body surface is constant and precisely defined.
  • a simple embodiment provides that the antenna conductor is wound directly onto the cable harness. However, it is also possible to wind the antenna conductor on a tube in which the cable harness is guided. This can be advantageous in particular if the cable harness itself has a diameter which would result in a too small winding diameter for the desired design of the antenna.
  • the invention also includes embodiments in which the antenna conductor is wound along its extent around different harnesses, if this requires the desired geometry.
  • support structures which serve to wind up the antenna conductor.
  • these support structures for example, advantageously be made of plastic.
  • the outer geometry of the additional support structures or tubes used may be different.
  • the structures or tubes have a round cross-section.
  • An antenna conductor according to the invention may have subsections which are wound directly or indirectly around a cable harness and additional subsections which are wound around a separate carrier structure. There may be provided on an antenna conductor portions directly wound on a wire harness and other portions wound on a pipe leading the wire harness.
  • the diameter of the winding is determined by the diameter of the wire harness in embodiments where the antenna conductor is wound directly on a wire harness. In areas where the winding is provided on a pipe that receives a wire harness, the diameter of the pipe defines the diameter of the winding. Accordingly, in areas where the antenna conductor is wound on an additional support structure, the diameter is defined by this support structure.
  • the antenna conductor may comprise, for example, an antenna wire, a ribbon conductor or other antenna materials.
  • a current-carrying conductor which is placed around the wiring harness and possibly additional support structures, generates a magnetic field which can be divided substantially into two parts.
  • the first part corresponds to the magnetic field that would be generated by a straight line conductor extending along the axis of the winding.
  • the second part corresponds to the magnetic field which is generated by the winding in the manner of a coil-shaped current-carrying conductor.
  • the antenna conductor looped along one or more harnesses and support structures from one terminal of the antenna controller to the other Connection of the antenna control device extends and thus forms a loop.
  • Supplying a current to this loop generates a corresponding magnetic field, for example for detecting a portable transceiver or for transmitting signals.
  • the part of the magnetic field generated by current flow in the antenna is used for the antenna function, which is generated by the extension of the antenna conductor in complete or partial loop shape and thus corresponds to the above-mentioned first part of the generated magnetic field.
  • the measuring principle corresponds to known solutions.
  • the period of the winding of the antenna conductor around the wiring harness or optionally additionally existing support structures compared to the diameter of the winding is chosen to be large.
  • the second part of the magnetic field, which is generated at current flow through the antenna conductor due to the winding of the antenna conductor itself kept low and reduces a possible influence on the evaluation by this part of the magnetic field.
  • a first part of the antenna conductor extends along a first direction of the wiring harness or optionally additionally present support structures starting from the antenna control device. This first part is at least partially wound around the wiring harness or the additionally present support structures, so as to maintain the average constant distance, for example, to an adjacent metallic body surface.
  • a second part of the antenna conductor is fed back to the antenna control device along the wiring harness or any additional support structures that may be present.
  • the magnetic field generated by current flow through the second part of the antenna conductor due to the opposite direction of current to that part of the magnetic field, which arises when current flows through the first part of the antenna conductor and is not generated by the windings. The above-mentioned first part of the magnetic field generated by the current flow is thus compensated in such an embodiment.
  • the antenna function remains that part of the magnetic field which is generated by the windings of the first part of the antenna conductor (corresponding to the above-mentioned second part of the magnetic field generated by the current flow) and is not compensated by the rectilinear return of the second part of the antenna conductor.
  • the arrangement is very flexible in setting the desired field shape, which can be determined by targeted arrangement of the windings.
  • the number and density of the windings of the antenna conductor can be used to adjust the strength of the magnetic field used for the antenna function.
  • the direction of the magnetic field used can be set by selecting the winding direction.
  • larger sections, by which no magnetic field is to be generated, can be generated by twisting the second part of the antenna conductor with areas of the first part of the antenna conductor which this is not wound, be achieved.
  • the invention comprises the above-described embodiments of antennas with ground contact and antennas with a feedback to the antenna control device.
  • mixed forms may also be provided.
  • areas may be provided in which the antenna conductor is wholly or partially returned along its path before it is connected to ground, for example, to a vehicle body.
  • the inventive arrangement for wireless communication of a vehicle with a portable communication unit, for example a transceiver can be used particularly advantageously.
  • the device may then be used, for example, to verify authorization to start the engine or access the vehicle, for example by checking the identity of the transceiver being worn by a user.
  • signals emitted by the antenna through current flow at appropriate frequencies may serve to detect corresponding transceiver elements in the vicinity of the antenna.
  • the signals may be used to signal or data transmission to a corresponding receiver to cause this to take an action, for example, to send back an authorization signal.
  • the winding according to the invention of at least one part of the antenna conductor around a cable harness is equally suitable for receiving antennas which are provided, for example, for receiving signals from a remote control unit.
  • the wiring harness 3 has been shown in a straight line, although the wiring harness or the wiring harnesses extend through the vehicle in various shapes and lengths.
  • the figures are only schematic.
  • Fig. 1 shows the part of a wire harness 3 with a wound around it antenna wire 1.
  • the antenna wire is supplied by an antenna control device 7, whose second terminal is connected to the vehicle body as a mass.
  • the antenna wire 1 is connected at its other end to a body panel 5 and insofar also connected to ground.
  • the antenna control device comprises, in a manner known per se, a radio-frequency or high-frequency source in order to generate a current in the connected antenna wire 1 which serves to generate a possibly signal-carrying magnetic field.
  • the controller comprises in a conventional manner an evaluation circuit for evaluating the detected signals.
  • the wiring harness 3 is laid, for example, in a motor vehicle to supply various elements of the motor vehicle with power and / or data signals.
  • a motor vehicle to supply various elements of the motor vehicle with power and / or data signals.
  • an arrangement is created across the antenna wire and body which, when current flows through the antenna wire, results in a magnetic field that can be used to detect, for example, a portable transceiver.
  • the antenna controller 7 extends from the second terminal thereof another antenna wire which is grounded elsewhere in the body to form a loop with the first antenna wire 1 and a part of the body.
  • the end of the antenna wire 1 is not connected to the body 5, but with the second terminal of the antenna control device 7, which then not must be connected to ground.
  • the antenna wire is wound around a corresponding selection of cable harnesses already present in the motor vehicle, so that the overall result is a loop shape and a corresponding magnetic field is generated when current flows through the antenna wire.
  • Fig. 2 shows another embodiment in which the antenna wire along the wiring harness is returned to the antenna control device.
  • the antenna wire consists here of a part 11 leading away from the antenna control device 7, which is wound around the cable harness 3 in regions A.
  • the second part of the antenna wire 13 which is returned to the antenna control device 7 in a substantially rectilinear manner on or within the cable harness 3, begins.
  • the two parts 11 and 13 of the antenna wire are twisted together.
  • a current flow in the first part 11 of the antenna wire generates a first magnetic field, which is compensated by a second magnetic field which is generated by the current flow in the returning part 13 of the antenna wire.
  • current flows through the antenna wire thus remains as the resulting magnetic field only that field which is generated by the windings around the wiring harness 3 in the areas A of the first part of the antenna wire. This part of the magnetic field is used for the antenna function.
  • an antenna wire 1 does not necessarily have to be wound along its entire length on a wire harness 3.
  • the antenna wire 1 may be wound directly in areas directly on a wire harness 3.
  • the antenna wire 1 may also be wound on a tube 32 that guides the harness 30.
  • separate support structures 34 may be provided for bridging distances where no wiring harness is available to support the antenna wire 1.
  • Such support structures may be formed, for example, by plastic rods 34 or plastic pipes.
  • the antenna arrangement according to the invention using existing elements, such as one or more wiring harnesses in a vehicle, a simple and accurate routing of the antenna wire is possible, with inaccuracies being avoided by the positioning of the antenna wire within the wiring harness.

Abstract

Combination of an antenna conductors (1) and atleast a cable loom (3) involves wounding of the section of the antenna conductors in a spiral shape around cable loom. Combination is provided with the winding of the antenna conductors around the cable loom but not directly on the cable loom. Independent claims are also included for the following: (A) Vehicle; (B) System for wireless communication; and (C) Application of a system.

Description

Die Erfindung betrifft eine Kombination aus einem Antennenleiter und einem Kabelbaum insbesondere für ein Fahrzeug, ein Fahrzeug mit einer solchen Kombination, ein System zur drahtlosen Kommunikation und eine Verwendung des Systemes.The invention relates to a combination of an antenna conductor and a wiring harness, in particular for a vehicle, a vehicle with such a combination, a system for wireless communication and a use of the system.

In typischen schlüsselfreien ("keyless") Zugangskontroll- bzw. Femsteuerungssystemen wird bidirektionale Radiofrequenzkommunikation zwischen einer Antenneneinrichtung (bzw. Antenne) und einem Schlüsselelement verwendet. So kann zum Beispiel mit Hilfe einer Antenne eines Fahrzeuges ein ggf. signaltragendes Magnetfeld erzeugt werden und detektiert werden, wenn sich in diesem Magnetfeld ein entsprechend ausgestalteter Transceiver befindet.In typical keyless access control systems, bidirectional radio frequency communication is used between an antenna device (or antenna) and a key element. Thus, for example, with the aid of an antenna of a vehicle, a possibly signal-carrying magnetic field can be generated and detected when there is a suitably designed transceiver in this magnetic field.

EP 1 363 353 A1 beschreibt dazu schleifenförmige Antennen, die zum Beispiel auf dem Boden eines Kraftfahrzeuges um den Kofferraum oder um die Fahrgastzelle herum angeordnet sind. Dabei müssen solche Schleifen gemäß EP 1 548 871 A1 nicht geschlossen sein, sondern können einzelne Äste umfassen, die einerseits mit einer Antennensteuereinrichtung verbunden sind und andererseits an der Fahrzeugkarosserie geerdet sind. Bei entsprechender Anordnung der einzelnen Äste wird ein Teil der Schleife auf diese Weise durch die metallische Verbindung über die Fahrzeugkarosserie gebildet. EP 1 363 353 A1 describes this loop-shaped antennas, which are arranged for example on the floor of a motor vehicle around the trunk or around the passenger compartment around. It must be such loops according to EP 1 548 871 A1 not be closed, but may include individual branches, which are on the one hand connected to an antenna control device and on the other hand grounded to the vehicle body. With appropriate arrangement of the individual branches, a part of the loop is formed in this way by the metallic connection via the vehicle body.

Die einzelnen Äste des Antennenleiters können in einen Kabelbaum integriert werden, wie er in Fahrzeugen verwendet wird, um Strom oder Datensignale zu den verschiedenen Elementen des Fahrzeuges zu leiten.The individual branches of the antenna conductor may be integrated into a wire harness as used in vehicles to route power or data signals to the various elements of the vehicle.

Eine Integration des Antennenleiters in einen Kabelbaum führt dazu, dass seine Position zum Beispiel mit Bezug zu nahe liegenden Karosserieelementen nicht genau definiert ist, da die Position des Antennenleiters in dem Kabelbaum nicht präzise festgelegt ist und unterschiedlich sein kann. Durch die Wechselwirkung des mit Hilfe von Stromfluss durch den Antennenleiter erzeugten Magnetfeldes mit zum Beispiel umliegenden metallischen Karosserieelementen hat diese Positionsungenauigkeit Auswirkungen auf die Präzision und Verlässlichkeit zum Beispiel eines mit Hilfe der Antenne betriebenen schlüsselfreien Systems. Dies gilt insbesondere, wenn die Schleife durch einen Teil der Karosserie geschlossen wird.Integration of the antenna conductor into a wiring harness results in its position not being accurately defined, for example, with respect to nearby body panels, since the position of the antenna conductor in the wiring harness is not precisely defined and may be different. By the interaction of the magnetic field generated by means of current flow through the antenna conductor with, for example, surrounding metallic body elements, this position inaccuracy has an impact on the precision and reliability of, for example, a keyless system powered by the antenna. This is especially true when the loop is closed by a part of the body.

US-A-2 899 549 beschreibt eine Antenne, die um ein Kopfhörerkabel für ein Radio gewickelt ist. US-A-2,899,549 describes an antenna wrapped around a headphone cable for a radio.

Aufgabe der vorliegenden Erfindung ist es, eine Antenne zu ermöglichen, die einen präzisen und reproduzierbaren Betrieb bereitstellt, ohne zu hohen Aufwand bei der Positionierung des Antennenleiters zu erfordern.The object of the present invention is to enable an antenna which provides precise and reproducible operation without requiring too much effort in positioning the antenna conductor.

Diese Aufgabe wird mit einer Kombination aus einem Antennenleiter und wenigstens einem Kabelbaum mit den Merkmalen des Anspruches 1, ein Fahrzeug mit den Merkmalen des Anspruches 11 und ein System zur drahtlosen Kommunikation mit den Merkmalen des Anspruches 13 gelöst. Eine vorteilhafte Verwendung ist Gegenstand des Anspruches 14. Unteransprüche sind auf bevorzugte Ausführungsformen gerichtet.This object is achieved with a combination of an antenna conductor and at least one cable harness with the features of claim 1, a vehicle with the features of claim 11 and a wireless communication system with the features of claim 13. An advantageous use is the subject of claim 14. Subclaims are directed to preferred embodiments.

Die erfindungsgemäße Anordnung ist für Vorrichtungen vorgesehen, die wenigstens einen Kabelbaum aufweisen. Insbesondere ist die erfindungsgemäße Kombination in Fahrzeugen verwendbar. Die Anordnung weist einen Antennenleiter auf, der zumindest über einen Teilabschnitt seiner Länge in mehreren Windungen nach Art einer Spule spiralförmig um den Kabelbaum gewickelt ist. Der Antennenleiter kann einfach um den Kabelbaum herumgewickelt werden, wodurch seine Position in Bezug auf den Kabelbaum genau definiert ist. Eine Integration in den Kabelbaum unter Beachtung einer genauen Positionierung ist daher nicht notwendig. Wird der Kabelbaum in dem Fahrzeug verlegt, entsteht zum Beispiel zu einer benachbarten metallischen Karosseriefläche auf diese Weise ein sich periodisch ändernder Abstand des Antennenleiters. Im Mittel ist daher der Abstand von der benachbarten metallischen Karosseriefläche konstant und genau definiert.The arrangement according to the invention is intended for devices which have at least one cable harness. In particular, the combination according to the invention can be used in vehicles. The arrangement comprises an antenna conductor which is wound in a spiral around the cable harness in at least a portion of its length in a plurality of turns in the manner of a coil. The antenna conductor can simply be wrapped around the harness, thereby maintaining its position with respect to the harness Harness is precisely defined. An integration in the wiring harness, taking into account a precise positioning is therefore not necessary. If the cable harness is laid in the vehicle, for example, a periodically changing distance of the antenna conductor arises in this way to an adjacent metallic body surface. On average, therefore, the distance from the adjacent metallic body surface is constant and precisely defined.

Eine einfache Ausgestaltung sieht vor, dass der Antennenleiter direkt auf den Kabelbaum gewickelt wird. Es ist jedoch auch möglich, den Antennenleiter auf ein Rohr aufzuwickeln, in dem der Kabelbaum geführt ist. Dies kann insbesondere dann vorteilhaft sein, wenn der Kabelbaum an sich einen Durchmesser aufweist, der für die gewünschte Ausführung der Antenne einen zu kleinen Wicklungsdurchmesser ergeben würde.A simple embodiment provides that the antenna conductor is wound directly onto the cable harness. However, it is also possible to wind the antenna conductor on a tube in which the cable harness is guided. This can be advantageous in particular if the cable harness itself has a diameter which would result in a too small winding diameter for the desired design of the antenna.

Die Erfindung umfasst auch Ausgestaltungen, in denen der Antennenleiter entlang seiner Erstreckung um verschiedene Kabelbäume gewickelt ist, wenn dies die gewünschte Geometrie erfordert.The invention also includes embodiments in which the antenna conductor is wound along its extent around different harnesses, if this requires the desired geometry.

Zum Beispiel um Strecken zu überbrücken, in denen kein Kabelbaum verlegt ist, können gesonderte Tragestrukturen vorgesehen sein, die zum Aufwickeln des Antennenleiters dienen. Möglich sind zum Beispiel Rohre oder Stäbe mit den gewünschten Außenmaßen. Um eine Beeinflussung des Magnetfeldes möglichst gering zu halten, können diese Tragestrukturen zum Beispiel vorteilhafterweise aus Kunststoff gefertigt sein.For example, to bridge paths in which no wiring harness is laid, separate support structures may be provided which serve to wind up the antenna conductor. Possible, for example, tubes or rods with the desired external dimensions. In order to keep the influence of the magnetic field as low as possible, these support structures, for example, advantageously be made of plastic.

Die äußere Geometrie der zusätzlich eingesetzten Tragestrukturen oder Rohre kann unterschiedlich sein. Vorteilhafterweise haben die Strukturen bzw. Rohre jedoch einen runden Querschnitt.The outer geometry of the additional support structures or tubes used may be different. Advantageously, however, the structures or tubes have a round cross-section.

Ein erfindungsgemäßer Antennenleiter kann Teilabschnitte aufweisen, die direkt oder indirekt um einen Kabelbaum gewickelt sind und zusätzliche Teilabschnitte, die um eine gesonderte Tragestruktur gewickelt sind. Es können an einem Antennenleiter Bereiche vorgesehen sein, die direkt auf einen Kabelbaum gewickelt sind und andere Bereiche, die auf ein Rohr gewickelt sind, das den Kabelbaum führt.An antenna conductor according to the invention may have subsections which are wound directly or indirectly around a cable harness and additional subsections which are wound around a separate carrier structure. There may be provided on an antenna conductor portions directly wound on a wire harness and other portions wound on a pipe leading the wire harness.

Der Durchmesser der Wicklung wird bei Ausführungsformen, bei denen der Antennenleiter direkt auf einen Kabelbaum gewickelt ist, durch den Durchmesser des Kabelbaumes bestimmt. In Bereichen, in denen die Wicklung auf einem Rohr vorgesehen ist, das einen Kabelbaum aufnimmt, definiert der Durchmesser des Rohres den Durchmesser der Wicklung. Entsprechend wird in Bereichen, in denen der Antennenleiter auf eine zusätzliche Tragestruktur gewickelt ist, der Durchmesser durch diese Tragestruktur definiert.The diameter of the winding is determined by the diameter of the wire harness in embodiments where the antenna conductor is wound directly on a wire harness. In areas where the winding is provided on a pipe that receives a wire harness, the diameter of the pipe defines the diameter of the winding. Accordingly, in areas where the antenna conductor is wound on an additional support structure, the diameter is defined by this support structure.

Der Antennenleiter kann zum Beispiel einen Antennendraht, einen Flachbandleiter oder andere Antennenmaterialien umfassen.The antenna conductor may comprise, for example, an antenna wire, a ribbon conductor or other antenna materials.

Ein stromdurchflossener Leiter, der um den Kabelbaum und gegebenenfalls zusätzliche Tragestrukturen gelegt ist, erzeugt ein Magnetfeld, das im Wesentlichen in zwei Teile aufgeteilt werden kann. Der erste Teil entspricht dem Magnetfeld, das durch einen geradlinigen Leiter erzeugt werden würde, der sich entlang der Achse der Wicklung erstreckt. Der zweite Teil entspricht dem Magnetfeld, das durch die Wicklung nach Art eines spulenförmigen stromdurchflossenen Leiters erzeugt wird.A current-carrying conductor, which is placed around the wiring harness and possibly additional support structures, generates a magnetic field which can be divided substantially into two parts. The first part corresponds to the magnetic field that would be generated by a straight line conductor extending along the axis of the winding. The second part corresponds to the magnetic field which is generated by the winding in the manner of a coil-shaped current-carrying conductor.

Es kann zum Beispiel vorgesehen sein, dass der Antennenleiter sich entlang eines oder mehrerer Kabelbäume und Tragestrukturen schleifenförmig von einem Anschluss der Antennensteuereinrichtung zum anderen Anschluss der Antennensteuereinrichtung erstreckt und somit eine Schleife bildet. Einspeisen eines Stromes in diese Schleife erzeugt ein entsprechendes Magnetfeld zum Beispiel zur Detektion eines tragbaren Transceivers oder zur Übermittlung von Signalen. Besonders einfach ist eine Ausgestaltung, bei der sich der Antennenleiter um einen Kabelbaum und gegebenenfalls zusätzliche Tragestrukturen gewickelt von der Antennensteuereinrichtung weg erstreckt und an seinem von der Antennensteuereinrichtung entfernten Ende mit der metallischen Fahrzeugkarosserie oder dem Fahrzeugchassis verbunden ist. Die Fahrzeugkarosserie bzw. das Chassis kann dann die Funktion eines Teiles der Schleife übernehmen, wenn der zweite Anschluss der Antennensteuereinrichtung ebenfalls mit der Karosserie oder dem Chassis verbunden ist.For example, it may be provided that the antenna conductor looped along one or more harnesses and support structures from one terminal of the antenna controller to the other Connection of the antenna control device extends and thus forms a loop. Supplying a current to this loop generates a corresponding magnetic field, for example for detecting a portable transceiver or for transmitting signals. Particularly simple is an embodiment in which the antenna conductor wound around a harness and possibly additional support structures of the antenna control device away and is connected at its remote from the antenna control device end to the metallic vehicle body or the vehicle chassis. The vehicle body or chassis can then take over the function of a part of the loop when the second terminal of the antenna control device is also connected to the body or the chassis.

Bei diesen Ausführungsformen wird für die Antennenfunktion derjenige Teil des durch Stromfluss in der Antenne generierten Magnetfeldes verwendet, der durch die Erstreckung des Antennenleiters in vollständiger oder teilweiser Schleifenform erzeugt wird und insofern dem oben genannten ersten Teil des erzeugten Magnetfeldes entspricht. Das Messprinzip entspricht dabei an sich bekannten Lösungen.In these embodiments, the part of the magnetic field generated by current flow in the antenna is used for the antenna function, which is generated by the extension of the antenna conductor in complete or partial loop shape and thus corresponds to the above-mentioned first part of the generated magnetic field. The measuring principle corresponds to known solutions.

Bei einer vorteilhaften Weiterbildung dieser Ausführungsformen wird die Periode der Wicklung des Antennenleiters um den Kabelbaum oder gegebenenfalls zusätzlich vorhandene Tragestrukturen im Vergleich zum Durchmesser der Wicklung groß gewählt. So wird der zweite Teil des Magnetfeldes, der bei Stromfluss durch den Antennenleiter aufgrund der Wicklung des Antennenleiters selbst erzeugt wird, gering gehalten und eine mögliche Beeinflussung der Auswertung durch diesen Teil des Magnetfeldes reduziert.In an advantageous development of these embodiments, the period of the winding of the antenna conductor around the wiring harness or optionally additionally existing support structures compared to the diameter of the winding is chosen to be large. Thus, the second part of the magnetic field, which is generated at current flow through the antenna conductor due to the winding of the antenna conductor itself, kept low and reduces a possible influence on the evaluation by this part of the magnetic field.

Bei einer anderen Ausführungsform erstreckt sich ein erster Teil des Antennenleiters entlang einer ersten Richtung des Kabelbaumes oder gegebenenfalls zusätzlich vorhandener Tragestrukturen ausgehend von der Antennensteuereinrichtung. Dieser erste Teil ist zumindest teilweise um den Kabelbaum bzw. die zusätzlich vorhandenen Tragestrukturen gewickelt, um so den im Durchschnitt konstanten Abstand zum Beispiel zu einer benachbarten metallischen Karosseriefläche zu wahren. Ein zweiter Teil des Antennenleiters ist entlang des Kabelbaumes bzw. der gegebenenfalls vorhandenen zusätzlichen Tragestrukturen wieder zur Antennensteuereinrichtung zurückgeführt. Das bei Stromfluss durch den zweiten Teil des Antennenleiters erzeugte Magnetfeld hebt aufgrund der entgegengesetzten Stromrichtung denjenigen Teil des Magnetfeldes auf, der bei Stromfluss durch den ersten Teil des Antennenleiters entsteht und nicht durch die Wicklungen erzeugt wird. Der oben erwähnte erste Teil des durch den Stromfluss generierten Magnetfeldes wird bei einer solchen Ausführungsform also kompensiert. Für die Antennenfunktion verbleibt derjenige Teil des Magnetfeldes, der durch die Wicklungen des ersten Teiles des Antennenleiters erzeugt wird (entsprechend dem oben genannten zweiten Teil des durch den Stromfluss generierten Magnetfeldes) und durch die geradlinige Zurückführung des zweiten Teiles des Antennenleiters nicht kompensiert wird. Bei einer solchen Anordnung ist es nicht notwendig, dass der Antennenleiter an einem Teil der Fahrzeugkarosserie geerdet wird. Die Anordnung ist sehr flexibel bei der Einstellung der gewünschten Feldform, die durch gezielte Anordnung der Wicklungen festgelegt werden kann. Die Anzahl und Dichte der Wicklungen des Antennenleiters kann zur Einstellung der Stärke des für die Antennenfunktion verwendeten Magnetfeldes verwendet werden. Außerdem kann zum Beispiel die Richtung des verwendeten Magnetfeldes festgelegt werden, indem die Wickelrichtung ausgewählt wird.In another embodiment, a first part of the antenna conductor extends along a first direction of the wiring harness or optionally additionally present support structures starting from the antenna control device. This first part is at least partially wound around the wiring harness or the additionally present support structures, so as to maintain the average constant distance, for example, to an adjacent metallic body surface. A second part of the antenna conductor is fed back to the antenna control device along the wiring harness or any additional support structures that may be present. The magnetic field generated by current flow through the second part of the antenna conductor due to the opposite direction of current to that part of the magnetic field, which arises when current flows through the first part of the antenna conductor and is not generated by the windings. The above-mentioned first part of the magnetic field generated by the current flow is thus compensated in such an embodiment. For the antenna function remains that part of the magnetic field which is generated by the windings of the first part of the antenna conductor (corresponding to the above-mentioned second part of the magnetic field generated by the current flow) and is not compensated by the rectilinear return of the second part of the antenna conductor. With such an arrangement, it is not necessary that the antenna conductor is grounded to a part of the vehicle body. The arrangement is very flexible in setting the desired field shape, which can be determined by targeted arrangement of the windings. The number and density of the windings of the antenna conductor can be used to adjust the strength of the magnetic field used for the antenna function. In addition, for example, the direction of the magnetic field used can be set by selecting the winding direction.

Bei einer Ausführungsform mit an oder innerhalb des Kabelbaumes bzw. an einer gegebenenfalls vorgesehenen zusätzlichen Tragestruktur zurückgeführtem zweiten Teil des Antennenleiters können größere Abschnitte, durch die kein Magnetfeld erzeugt werden soll, durch Verdrillen des zweiten Teiles des Antennenleiters mit Bereichen des ersten Teiles des Antennenleiters, in denen dieser nicht gewickelt ist, erzielt werden.In one embodiment, with the second part of the antenna conductor recirculated on or inside the cable harness or on an optionally provided additional support structure, larger sections, by which no magnetic field is to be generated, can be generated by twisting the second part of the antenna conductor with areas of the first part of the antenna conductor which this is not wound, be achieved.

Die Erfindung umfasst unter anderem die oben beschriebenen Ausführungsformen von Antennen mit Massekontakt und Antennen mit einer Rückführung zur Antennensteuereinrichtung. Es können jedoch auch Mischformen vorgesehen sein. So können zum Beispiel Bereiche vorgesehen sein, in denen der Antennenleiter entlang seines Weges ganz oder teilweise zurückgeführt ist, bevor er zum Beispiel mit einer Fahrzeugkarosserie als Masse verbunden wird.Among other things, the invention comprises the above-described embodiments of antennas with ground contact and antennas with a feedback to the antenna control device. However, mixed forms may also be provided. For example, areas may be provided in which the antenna conductor is wholly or partially returned along its path before it is connected to ground, for example, to a vehicle body.

Besonders vorteilhaft lässt sich die erfindungsgemäße Anordnung zur drahtlosen Kommunikation eines Fahrzeuges mit einer tragbaren Kommunikationseinheit, zum Beispiel einem Transceiver, verwenden. Die Anordnung kann dann zum Beispiel zur Überprüfung der Berechtigung zum Starten des Motors oder des Zugangs zum Fahrzeug eingesetzt werden, indem zum Beispiel die Identität des Transceivers geprüft wird, der von einem Benutzer getragen bzw. verwendet wird.The inventive arrangement for wireless communication of a vehicle with a portable communication unit, for example a transceiver, can be used particularly advantageously. The device may then be used, for example, to verify authorization to start the engine or access the vehicle, for example by checking the identity of the transceiver being worn by a user.

Signale, die von der Antenne durch Stromfluss mit entsprechenden Frequenzen ausgesendet werden, können zum Beispiel zur Detektion von korrespondierenden Transceiverelementen in der Nähe der Antenne dienen. Ebenso können die Signale zur Signal- bzw. Datenübermittlung an einen entsprechenden Empfänger dienen, um diesen zu veranlassen, eine Handlung vorzunehmen, zum Beispiel ein Berechtigungssignal zurückzusenden.For example, signals emitted by the antenna through current flow at appropriate frequencies may serve to detect corresponding transceiver elements in the vicinity of the antenna. Likewise, the signals may be used to signal or data transmission to a corresponding receiver to cause this to take an action, for example, to send back an authorization signal.

Die erfindungsgemäße Wicklung zumindest eines Teiles des Antennenleiters um einen Kabelbaum ist gleichermaßen für Empfangsantennen geeignet, die zum Beispiel zum Empfang von Signalen einer Femsteuereinheit vorgesehen sind.The winding according to the invention of at least one part of the antenna conductor around a cable harness is equally suitable for receiving antennas which are provided, for example, for receiving signals from a remote control unit.

Die Erfindung wird anhand spezieller Ausführungsformen unter Bezugnahme auf die anliegenden Figuren erläutert. Dabei zeigt

Fig. 1
in schematischer Darstellung eine erste Ausführungsform einer erfindungsgemäßen Antennenanordnung,
Fig. 2
in schematischer Darstellung eine zweite Ausführungsform einer erfindungsgemäßen Antennenanordnung, und
Fig. 3
in schematischer Darstellung mehrere mögliche Bereiche einer Antennenleiterführung.
The invention will be explained with reference to specific embodiments with reference to the accompanying figures. It shows
Fig. 1
a schematic representation of a first embodiment of an antenna arrangement according to the invention,
Fig. 2
a schematic representation of a second embodiment of an antenna arrangement according to the invention, and
Fig. 3
a schematic representation of several possible areas of an antenna guide.

Im Folgenden wird eine Ausführungsform einer erfindungsgemäßen Antennenanordnung am Beispiel der Verwendung in einem Kraftfahrzeug beschrieben.An embodiment of an antenna arrangement according to the invention is described below using the example in a motor vehicle.

Die Darstellung der Figuren ist nur schematisch zu verstehen. Der Einfachheit der Darstellung halber wurde der Kabelbaum 3 jeweils geradlinig gezeigt, obwohl sich der Kabelbaum bzw. die Kabelbäume in unterschiedlichsten Formen und Längen durch das Fahrzeug erstrecken. Insbesondere hinsichtlich der Dimensionen, der Form und der Lage des Kabelbaums 3 mit Bezug zur Karosserie 5 sind die Figuren nur schematisch.The representation of the figures is only to be understood schematically. For ease of illustration, the wiring harness 3 has been shown in a straight line, although the wiring harness or the wiring harnesses extend through the vehicle in various shapes and lengths. In particular, with regard to the dimensions, the shape and the position of the wiring harness 3 with respect to the body 5, the figures are only schematic.

Fig. 1 zeigt den Teil eines Kabelbaumes 3 mit einem darum gewickeltem Antennendraht 1. Der Antennendraht wird von einer Antennensteuereinrichtung 7 versorgt, deren zweiter Anschluss mit der Fahrzeugkarosserie als Masse verbunden ist. Der Antennendraht 1 ist an seinem anderen Ende mit einem Karosserieblech 5 verbunden und insofern ebenfalls mit Masse verbunden.Fig. 1 shows the part of a wire harness 3 with a wound around it antenna wire 1. The antenna wire is supplied by an antenna control device 7, whose second terminal is connected to the vehicle body as a mass. The antenna wire 1 is connected at its other end to a body panel 5 and insofar also connected to ground.

Die Antennensteuereinrichtung umfasst in an sich bekannter Weise eine Radiofrequenz- bzw. Hochfrequenzquelle um in dem angeschlossenen Antennendraht 1 einen Strom zu generieren, der zur Erzeugung eines ggf. signaltragenden Magnetfeldes dient. Außerdem umfasst die Steuerung in an sich bekannter Weise eine Auswerteschaltung zur Auswertung der detektierten Signale.The antenna control device comprises, in a manner known per se, a radio-frequency or high-frequency source in order to generate a current in the connected antenna wire 1 which serves to generate a possibly signal-carrying magnetic field. In addition, the controller comprises in a conventional manner an evaluation circuit for evaluating the detected signals.

Der Kabelbaum 3 ist zum Beispiel in einem Kraftfahrzeug verlegt, um verschiedene Elemente des Kraftfahrzeuges mit Strom und/oder Datensignalen zu versorgen. Bei geschickter Wahl der Geometrie entsteht über den Antennendraht und die Karosserie eine Anordnung, die bei Stromfluss durch den Antennendraht zu einem Magnetfeld führt, das zur Detektion zum Beispiel eines tragbaren Transceivers verwendet werden kann.The wiring harness 3 is laid, for example, in a motor vehicle to supply various elements of the motor vehicle with power and / or data signals. With a skillful choice of geometry, an arrangement is created across the antenna wire and body which, when current flows through the antenna wire, results in a magnetic field that can be used to detect, for example, a portable transceiver.

Bei anderen, nicht gezeigten Ausführungsformen erstreckt sich zum Beispiel von der Antennensteuereinrichtung 7 von deren zweitem Anschluss aus ein weiterer Antennendraht, der an anderer Stelle der Karosserie geerdet ist, um mit dem ersten Antennendraht 1 und einem Teil der Karosserie eine Schleife zu bilden.In other embodiments, not shown, for example, the antenna controller 7 extends from the second terminal thereof another antenna wire which is grounded elsewhere in the body to form a loop with the first antenna wire 1 and a part of the body.

Bei einer ebenfalls nicht gezeigten Ausführungsform wird das Ende des Antennendrahtes 1 nicht mit der Karosserie 5, sondern mit dem zweiten Anschluss der Antennensteuereinrichtung 7 verbunden, der dann nicht mit Masse verbunden sein muss. Dabei wird der Antennendraht um eine entsprechende Auswahl von ohnehin im Kraftfahrzeug vorhandenen Kabelbäumen gewickelt, so dass sich insgesamt eine Schleifenform ergibt und bei Stromfluss durch den Antennendraht ein entsprechendes Magnetfeld erzeugt wird.In an embodiment, also not shown, the end of the antenna wire 1 is not connected to the body 5, but with the second terminal of the antenna control device 7, which then not must be connected to ground. In this case, the antenna wire is wound around a corresponding selection of cable harnesses already present in the motor vehicle, so that the overall result is a loop shape and a corresponding magnetic field is generated when current flows through the antenna wire.

Fig. 2 zeigt eine andere Ausführungsform, bei der der Antennendraht entlang des Kabelbaumes wieder zur Antennensteuereinrichtung zurückgeführt wird. Der Antennendraht besteht hier aus einem von der Antennensteuereinrichtung 7 weg führenden Teil 11, der in Bereichen A um den Kabelbaum 3 gewickelt ist. Am Umkehrpunkt 17 beginnt der zweite Teil des Antennendrahtes 13, der im Wesentlichen geradlinig am oder innerhalb des Kabelbaumes 3 zur Antennensteuereinrichtung 7 zurückgeführt wird. In den Bereichen 15 zwischen den Wickelbereichen A sind die beiden Teile 11 und 13 des Antennendrahtes miteinander verdrillt.Fig. 2 shows another embodiment in which the antenna wire along the wiring harness is returned to the antenna control device. The antenna wire consists here of a part 11 leading away from the antenna control device 7, which is wound around the cable harness 3 in regions A. At the turning point 17, the second part of the antenna wire 13, which is returned to the antenna control device 7 in a substantially rectilinear manner on or within the cable harness 3, begins. In the areas 15 between the winding areas A, the two parts 11 and 13 of the antenna wire are twisted together.

Wird von der Antennensteuereinrichtung Strom in den so ausgestalteten Antennendraht geführt, heben sich die Magnetfelder der beiden Teile in den Bereichen 15 auf, da hier die Stromrichtung entgegengesetzt ist.If current is conducted by the antenna control device into the antenna wire configured in this way, the magnetic fields of the two parts cancel each other out in the regions 15, since the current direction is opposite here.

Ist der Kabelbaum 3 kurven- oder schleifenförmig in dem Kraftfahrzeug verlegt, so erzeugt ein Stromfluss im ersten Teil 11 des Antennendrahtes ein erstes Magnetfeld, das durch ein zweites Magnetfeld, das durch den Stromfluss im zurückführenden Teil 13 des Antennendrahtes erzeugt wird, kompensiert wird. Bei Stromfluss durch den Antennendraht verbleibt also als resultierendes Magnetfeld nur dasjenige Feld, das durch die Wicklungen um den Kabelbaum 3 in den Bereichen A des ersten Teiles des Antennendrahtes erzeugt wird. Dieser Teil des Magnetfeldes wird für die Antennenfunktion eingesetzt.If the wiring harness 3 is laid in a curve or loop shape in the motor vehicle, a current flow in the first part 11 of the antenna wire generates a first magnetic field, which is compensated by a second magnetic field which is generated by the current flow in the returning part 13 of the antenna wire. When current flows through the antenna wire thus remains as the resulting magnetic field only that field which is generated by the windings around the wiring harness 3 in the areas A of the first part of the antenna wire. This part of the magnetic field is used for the antenna function.

In Fig. 3 ist zur Erläuterung dargestellt, dass ein Antennendraht 1 nicht notwendigerweise entlang seiner gesamten Länge auf einen Kabelbaum 3 gewickelt sein muss. Je nach den Anforderungen bzw. den geometrischen Verhältnissen kann es vorgesehen sein, dass der Antennendraht 1 nur in Bereichen direkt auf einen Kabelbaum 3 gewickelt ist. In anderen Bereichen, in denen zum Beispiel nur dünnere Kabelbäume 30 zur Verfügung stehen, die einen zu geringen Wicklungsdurchmesser ergeben würden, kann der Antennendraht 1 auch auf ein Rohr 32 gewickelt sein, das den Kabelbaum 30 führt. Zusätzlich zu den Bereichen, in denen der Antennendraht 1 um einen Kabelbaum gewickelt ist, können zur Überbrückung von Strecken, in denen kein Kabelbaum zur Verfügung steht, gesonderte Tragestrukturen 34 vorgesehen sein, um den Antennendraht 1 zu halten. Solche Tragestrukturen können zum Beispiel durch Kunststoffstäbe 34 oder Kunststoffrohre gebildet sein.In Fig. 3 is illustrated for explanation that an antenna wire 1 does not necessarily have to be wound along its entire length on a wire harness 3. Depending on the requirements or the geometric conditions, it may be provided that the antenna wire 1 is wound directly in areas directly on a wire harness 3. In other areas where, for example, only thinner harnesses 30 are available that would result in too small a coil diameter, the antenna wire 1 may also be wound on a tube 32 that guides the harness 30. In addition to the areas where the antenna wire 1 is wound around a wiring harness, separate support structures 34 may be provided for bridging distances where no wiring harness is available to support the antenna wire 1. Such support structures may be formed, for example, by plastic rods 34 or plastic pipes.

Mit der erfindungsgemäßen Antennenanordnung ist unter Verwendung vorhandener Elemente, wie zum Beispiel eines oder mehrerer Kabelbäume in einem Fahrzeug, eine einfache und präzise Verlegung des Antennendrahtes möglich, wobei Ungenauigkeiten durch die Positionierung des Antennendrahtes innerhalb des Kabelbaum vermieden werden.With the antenna arrangement according to the invention using existing elements, such as one or more wiring harnesses in a vehicle, a simple and accurate routing of the antenna wire is possible, with inaccuracies being avoided by the positioning of the antenna wire within the wiring harness.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Antennendrahtantenna wire
33
Kabelbaumharness
55
Karosseriebody
77
AntennensteuereinrichtungAntenna controller
1111
wegführender Teil des Antennendrahteswegführender part of the antenna wire
1313
zurückführender Teil des Antennendrahtesreturning part of the antenna wire
1515
verdrillte Bereichetwisted areas
1717
Umkehrpunkt des AntennendrahtesReversal point of the antenna wire
3030
Kabelbaumharness
3232
Rohrpipe
3434
StabRod

Claims (14)

  1. A combination of at least one cable harness laid in a motor vehicle for the supply of different elements of the motor vehicle with power and/or data signals and of an antenna lead (1, 11, 13), wherein at least a part section (A) of the antenna lead (1, 11, 13) is wound spirally around the at least one cable harness.
  2. A combination in accordance with claim 1, wherein the winding of the antenna lead (1) around the cable harness (3, 30) is provided at least in part not directly on the cable harness (30), but rather on a tube (32) guiding the cable harness (30).
  3. A combination in accordance with claim 1 or claim 2, wherein the antenna lead, in addition to the at least one part section in which the antenna lead (1) is wound around the cable harness (3), comprises at least one part section in which it is wound around a separate support structure (34).
  4. A combination in accordance with claim 3, wherein the support structure comprises a bar (34) or a tube, preferably made of plastic.
  5. A combination in accordance with any one of the claims 1 to 4, wherein one end of the antenna lead (1, 11, 13) is connected to an antenna control device (7) and the second end is applied to ground potential, preferably by connection to a vehicle body (5) or to a vehicle chassis.
  6. A combination in accordance with claim 5, wherein the period of the winding of the antenna lead is large in comparison with the diameter of the winding.
  7. A combination in accordance with any one of the claims 1 to 6, wherein a first part (11) of the antenna lead extends along a first direction of the cable harness (3) or of the support structure, starting from an antenna control device (7), and is wound at least partly around the cable harness (3) or around the support structure and a second part (13) is led back in the direction of the antenna control device (7) again along the cable harness (3) or along the support structure.
  8. A combination in accordance with claim 7, wherein the period of the winding of the antenna lead (11) is small in comparison with the diameter of the winding or is the same as the diameter of the winding at least where a second part is guided back along the cable harness (3) or along the support structure.
  9. A combination in accordance with any one of the claims 7 or 8, wherein the second part (13) of the antenna lead is arranged in a straight line at the cable harness (3, 30) or at the support structure (34) or inside the cable harness (3, 30) at least where the first part (11) of the antenna lead is wound around a cable harness (3, 30) or around a support structure (34).
  10. A combination in accordance with any one of the claims 7 to 9, wherein the first part (11) of the antenna lead comprises one or more part sections which are not wound around a cable harness (3) and the second part (13) of the antenna lead is twisted (15) with at least one of these part sections.
  11. A vehicle comprising an antenna lead and at least one cable harness which form a combination in accordance with any one of the claims 1 to 10 for wireless communication.
  12. A vehicle in accordance with claim 11, wherein the antenna lead serves for the communication with a portable unit, preferably with a transceiver.
  13. A system for wireless communication comprising
    - a combination of an antenna lead and at least one cable harness in accordance with any one of the claims 1 to 10;
    - a unit, preferably portable, for the reception of signals of the antenna lead and/or for the transmission of signals to the antenna lead.
  14. Use of a system in accordance with claim 13 for a remote control system, an engine start control or an access control, in particular for vehicles.
EP05016678A 2005-08-01 2005-08-01 Antenna arrangement Active EP1750326B1 (en)

Priority Applications (3)

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EP05016678A EP1750326B1 (en) 2005-08-01 2005-08-01 Antenna arrangement
AT05016678T ATE383665T1 (en) 2005-08-01 2005-08-01 ANTENNA DEVICE
DE502005002506T DE502005002506D1 (en) 2005-08-01 2005-08-01 antenna means

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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Publication number Priority date Publication date Assignee Title
JP5690842B2 (en) * 2010-11-19 2015-03-25 株式会社フジクラ Antenna integrated harness
DE102021133673A1 (en) 2021-12-17 2023-06-22 HELLA GmbH & Co. KGaA Arrangement of a transceiver and an antenna connected to the transceiver

Citations (2)

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Publication number Priority date Publication date Assignee Title
US2899549A (en) * 1959-08-11 Antenna and audio connector
US5929824A (en) * 1995-06-20 1999-07-27 Saab Ericsson Space Ab Antenna element, conically helical, for polarization purity within a broad frequency range

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Publication number Priority date Publication date Assignee Title
GB688063A (en) * 1950-09-23 1953-02-25 Emi Ltd Improvements relating to antenna arrangements for radio-receiving apparatus
DE19748327A1 (en) * 1997-10-31 1999-05-20 Siemens Ag Antenna device, in particular for an anti-theft system of a motor vehicle
DE19752149C2 (en) * 1997-11-25 2003-06-18 Ford Global Tech Inc Antenna arrangement for keyless use of a vehicle
GB0325577D0 (en) * 2003-11-03 2003-12-03 Delphi Tech Inc Antenna system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2899549A (en) * 1959-08-11 Antenna and audio connector
US5929824A (en) * 1995-06-20 1999-07-27 Saab Ericsson Space Ab Antenna element, conically helical, for polarization purity within a broad frequency range

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DE502005002506D1 (en) 2008-02-21
EP1750326A1 (en) 2007-02-07

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