EP1366541B1 - Antenna for a receiver and/or transmitter, especially a roof antenna for motor vehicles - Google Patents

Antenna for a receiver and/or transmitter, especially a roof antenna for motor vehicles Download PDF

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Publication number
EP1366541B1
EP1366541B1 EP03742563A EP03742563A EP1366541B1 EP 1366541 B1 EP1366541 B1 EP 1366541B1 EP 03742563 A EP03742563 A EP 03742563A EP 03742563 A EP03742563 A EP 03742563A EP 1366541 B1 EP1366541 B1 EP 1366541B1
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EP
European Patent Office
Prior art keywords
antenna
antenna element
extension
connecting line
radiator
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Revoked
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EP03742563A
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German (de)
French (fr)
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EP1366541A1 (en
Inventor
Peter Karl Prassmayer
Christian Magg
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Kathrein SE
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Kathrein Werke KG
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    • 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
    • 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
    • H01Q1/125—Means for positioning
    • 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
    • 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
    • H01Q1/3275—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle mounted on a horizontal surface of the vehicle, e.g. on roof, hood, trunk
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/30—Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
    • H01Q5/321—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors within a radiating element or between connected radiating elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/342—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes
    • H01Q5/357—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using a single feed point
    • H01Q5/364—Creating multiple current paths
    • H01Q5/371—Branching current paths

Definitions

  • the invention relates to an antenna for a receiving and / or transmitting device in particular as a roof antenna for motor vehicles according to the preamble of claim 1.
  • a receiving device in particular for radio receivers for installation in motor vehicles has become known. It comprises a receiving part with at least one connection, via which further components can be connected. Above the receiving part is attachable a rod-shaped antenna.
  • the antenna for automobiles has become known, for example, from DE 298 21 723 U1.
  • the antenna comprises an antenna base, which consists of a housing or hood-shaped protective cover and a mountable on the car roof base plate. Between hood and base plate are housed in the interior of various electrical facilities.
  • a line 12 leads to the actual, from the footboard outwardly projecting radiator devices.
  • a so-called combined radiator is used, which is provided at its lower end with a threaded extension in order to then screw the threaded spotlight into a threaded bushing in the foot part and can.
  • antenna base in order finally to be able to receive different frequency ranges via one or more high-frequency lines.
  • antennas should be suitable, for example, for the mobile radio area in the different networks (for example D network or E network, but also for the new UMTS frequency range from about 1900 MHz to 2170 MHz).
  • GPS signals can be received and processed and / or FM programs can be received.
  • a two-range antenna is i.a. from US Pat. No. 6,191,747 in B1. It is a multigrade antenna using phase-shift coils to construct a monopole gain radiator.
  • a generic two-range motor vehicle antenna with an antenna base has become known, to which a connecting line is connected to the radiator arrangement via an intermediate line piece.
  • the antenna known therefrom is used, for example, for receiving the radio frequencies.
  • the rod-shaped antenna arrangement in this case comprises a blocking coil, which in the opened state interconnects the rod-shaped antenna elements provided above and below the blocking coil to form a common radiator arrangement for receiving the AM / FM frequency bands.
  • this coil locks, so that only the lower part of the antenna closer to the antenna base acts as a corresponding radiator element.
  • E-Mobilfunkband then acts only a separate antenna device in the antenna base, which runs parallel to said intermediate line piece and is also electrically connected at the coupling point of the rod-shaped antenna device to the intermediate line piece.
  • an antenna arrangement from EP-A-0 954 054 has become known. It is a folded antenna with a feed or feedline leading to a branching point. From this branching point folded antenna sections go out in the opposite direction, namely with a first length for reception in a first frequency band and a second shorter length for reception in a second higher frequency band.
  • the length of the folded antenna sections is, for example, ⁇ / 4 of the first frequency of 900 MHz, for example, whereas the length of the second folded line section ⁇ / 4 corresponds to the second frequency of 1800 MHz, for example.
  • a so far comparable branched antenna arrangement with two antenna sections for receiving a first and a second frequency band is basically, for example, from EP-A1-0 557 794 known as known.
  • Object of the present invention is to provide, starting from the generic state of the art, an improved multi-band antenna arrangement, which is in particular broadband and this with relatively minimal space.
  • the electrical line leading to a radiator for the higher frequency range or a bracket leading to the radiator for the higher frequency range is provided with an extension.
  • the extension may be implemented so that the supply lines are extended beyond a connection or contact point, over which the radiator is electrically contacted with the supply line, and preferably free ends. If the electrical supply line is formed by an electrically conductive bracket, the bracket can be extended beyond the contact point with the first radiator also, the contact point here serves as a connection or even attachment point for the radiator with.
  • radiator preferably used in the form of a bolt, but in extension of this radiator is still a coil and then another radiator element used.
  • the entire radiator arrangement including the antenna bracket acts as a radiator.
  • the antenna bracket and the lower part of the actual radiator arrangement ie generally the radiator pin provided for this purpose, together with a part of the mentioned coil, still work Radiator.
  • the frequency is further increased, namely, for example, in the GSM 1800 and GSM 1900 band (equivalent to 1710 MHz to 1990 MHz), only the antenna bracket and the lower antenna stud act as radiators.
  • the antenna bracket and its extension act as radiators.
  • FIG. 1 shows a schematic side view in cross section of the contour of a body panel 1 of a motor vehicle, preferably in the roof area adjacent to the rear window, on which a corresponding antenna is to be mounted.
  • the transmitting and / or receiving device comprises an antenna base 3 designed in the manner of a housing 5.
  • the housing 5 preferably comprises a hood-shaped Protective cover 5a and a bottom plate 5b, which may be attached by suitable measures on the body panel 1, for example, using adhesive layers, insulating materials, etc.
  • the body panel 1 usually at least one opening 9 is provided, via which electrical connection lines, coaxial cable, etc. can be routed to the antenna from the interior of the motor vehicle ago.
  • the bottom plate of the antenna housing is also placed on the motor vehicle roof, usually (which is not shown in detail in the drawings but well known) used as a hollow threaded rod threaded dome is used, which is anchored in the bottom plate and the opening 9 in the vehicle roof ins Vehicle interior protrudes into it.
  • the cables are then moved inwards. From the interior of the car, a central nut can then be screwed onto the threaded dome so as to firmly anchor the antenna to the motor vehicle roof.
  • a connecting line 13 leads to the actual antenna device 15, which in the exemplary embodiment shown consists of a first radiator 17, a blocking coil 19 which is preferably arranged in the axial extension of the first radiator 17 and which in turn adjoins the blocking coil 19 in an axial extension second radiator 21 consists.
  • the first radiator 17 can for example consist of a metallically conductive bolt or have a bolt structure.
  • the second radiator 21 should be as elastic as possible and may for example consist of a fiberglass core, which is wrapped with a corresponding coil-shaped electrically conductive arrangement. All possible antenna designs are conceivable, which are suitable for the respective application in question and are suitable.
  • the entire radiator arrangement acts as a radiator.
  • the antenna bracket and the lower part of the actual radiator arrangement that is to say the antenna element, are still active. usually the designated radiator pin together with a part of said coil as a radiator.
  • the frequency is further increased, namely, for example, in the GSM 1800 and GSM 1900 band (equivalent to 1710 MHz to 1990 MHz), only the antenna bracket and the lower antenna stud act as radiators.
  • the antenna bracket and its extension act as radiators.
  • the aforementioned connecting line 13 may preferably also consist of an at least slightly elastic or partially elastic strap 13 ', which is preferably biased in the radiator direction. That is, the antenna bracket has the tendency to the lower connection point of the radiator (inside the housing) when mounting the spotlight under Pretension to rest, so that here a durable electrical contact can be created easily.
  • the radiator assembly 15 is usually connected by means of a screw to the antenna housing 5, so that the antenna, especially when motor vehicles are driven into a car wash, previously unscrewed and then screwed back easily.
  • the actual radiator assembly 15, which can be screwed onto the housing, is ultimately held and supported by the housing itself.
  • an extension 25 is provided.
  • This extension 25 is formed in this embodiment as an extension of the connecting line 13 and thus preferably as an extension of the bracket 13 '. It preferably leads beyond the connection, attachment and / or contact point 27, at which the radiator 17 provided for the higher frequency range, ie thus the entire emitter assembly is optionally secured and held by a bridging portion on the electrical connection line 13 and the bracket 13 '.
  • the length and width of the extension 25 must be dimensioned so that the overall antenna is properly tuned for the desired higher frequency range. This vote can be done in different ways, as follows.
  • the extension 25 is shown in excerpts in a schematic plan view in its extended region beyond the connection and / or attachment point and / or contact point 27. It can be seen that this extension can in principle be designed wire-shaped, even if it is designed as a rather stiffer, dimensionally stable and possibly elastic strap 13 '.
  • the extension 25 can also be dimensioned shorter if, in contrast, as is apparent in particular from the plan view according to FIG. 3, it is dimensioned to be wider than in the exemplary embodiment according to FIGS ,

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  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Details Of Aerials (AREA)
  • Support Of Aerials (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

A receiving and/or transmitting device for motor vehicles has an antenna foot, with a housing. An electrical connection for an antenna element, which is preferably in turn electrically connected to a further antenna element via a lock-out coil, is made via an internal connecting line. The connecting line is preferably in the form of a bracket, and/or the first antenna is provided with an electrically conductive extension.

Description

Die Erfindung betrifft eine Antenne für eine Empfangs- und/oder Sendeeinrichtung insbesondere als Dachantenne für Kraftfahrzeuge nach dem Oberbegriff des Anspruches 1.The invention relates to an antenna for a receiving and / or transmitting device in particular as a roof antenna for motor vehicles according to the preamble of claim 1.

Beispielsweise aus der DE 197 39 395 A1 ist eine Empfangseinrichtung, insbesondere für Rundfunkempfänger zum Einbau in Kraftfahrzeugen bekannt geworden. Sie umfasst ein Empfangsteil mit mindestens einem Anschluss, über welches weitere Komponenten anschließbar sind. Oberhalb des Empfangsteils ist aufsteckbar eine stabförmige Antenne.For example, from DE 197 39 395 A1 a receiving device, in particular for radio receivers for installation in motor vehicles has become known. It comprises a receiving part with at least one connection, via which further components can be connected. Above the receiving part is attachable a rod-shaped antenna.

Eine Antenne für Automobile ist beispielsweise auch aus dem DE 298 21 723 U1 bekannt geworden. Die Antenne umfasst einen Antennenfuß, der aus einer gehäuse- oder haubenförmigen Schutzabdeckung und einer auf dem Autodach montierbaren Grundplatte besteht. Zwischen Haube und Grundplatte sind im Innenraum diverse elektrische Einrichtungen untergebracht. U.a. führt eine Leitung 12 zu den eigentlichen, aus dem Fußteil nach außen vorstehenden Strahlereinrichtungen. Dafür wird ein sogenannter Kombistrahler verwendet, der an seinem unteren Ende mit einem Gewindefortsatz versehen ist, um den Gewindestrahler dann in eine Gewindebuchse im Fußteil ein- und ausschrauben zu können.An antenna for automobiles has become known, for example, from DE 298 21 723 U1. The antenna comprises an antenna base, which consists of a housing or hood-shaped protective cover and a mountable on the car roof base plate. Between hood and base plate are housed in the interior of various electrical facilities. Among other things, a line 12 leads to the actual, from the footboard outwardly projecting radiator devices. For this purpose, a so-called combined radiator is used, which is provided at its lower end with a threaded extension in order to then screw the threaded spotlight into a threaded bushing in the foot part and can.

Dabei können auch weitere Einrichtungen im Antennenfuß untergebracht sein, um schließlich über eine oder mehrere Hochfrequenzleitungen unterschiedliche Frequenzbereiche empfangen zu können. Derartige Antennen sollen nämlich beispielsweise für den Mobilfunkbereich in den unterschiedlichen Netzen (beispielsweise D-Netz oder E-Netz, aber auch für den neuen UMTS-Frequenzbereich von etwa 1900 MHz bis 2170 MHz) geeignet sein. Darüber hinaus sollen gegebenenfalls auch GPS-Signale empfangen und verarbeitet werden können und/oder UKW-Programme empfangen werden können.In this case, further devices can be accommodated in the antenna base, in order finally to be able to receive different frequency ranges via one or more high-frequency lines. Namely, such antennas should be suitable, for example, for the mobile radio area in the different networks (for example D network or E network, but also for the new UMTS frequency range from about 1900 MHz to 2170 MHz). In addition, where appropriate, GPS signals can be received and processed and / or FM programs can be received.

Die bisher auf dem Markt erhältlichen Antennen haben sich vom Grundsatz her, obgleich unterschiedliche Umsetzungsprinzipien bekannt sind, bewährt.The antennas previously available on the market have been proven in principle, although different implementation principles are known.

Ausgehend von der zuletzt genannten gattungsbildenden Antenne besteht aber das Problem, dass eine derartige Antenne mit einem sogenannten "Kombi-Strahler" außer für den normalen Mobilfunkbereich im DoCoMo-Bereich, im AMPS-Bereich und/oder im GSM 900-Bereich(also im 810 bis 960 MHz-Bereich) und/oder im GSM 1800 und/oder im GSM 1900-Bereich (also im 1710 bis 1990 MHz-Bereich) nunmehr auch für den UMTS-Standard geeignet sein soll. Eine für diesen Gesamtbereich geeignete Antenne impliziert nämlich, dass die für diesen hohen Frequenzbereich vorgesehenen Strahler und Strahlerelemente kleiner, d.h. kürzer dimensioniert werden müssen, was auch für den Antennenbügel gilt. Dies hätte dann aber zur Folge, dass die Antenne insgesamt einschließlich des bestehenden Strahlers geändert werden müsste. Dies steht aber im Widerspruch zu dem sogenannten Gleichteile-Konzept, wonach beispielsweise ein Strahlertyp für unterschiedliche Einsatzzwecke verwendet werden soll.Starting from the last-mentioned generic antenna, however, there is the problem that such an antenna with a so-called "combi-emitters" except for the normal mobile area in the DoCoMo area, in the AMPS area and / or in the GSM 900 area (ie in the 810th up to 960 MHz range) and / or in the GSM 1800 and / or in the GSM 1900 range (ie in the 1710 to 1990 MHz range) should now also be suitable for the UMTS standard. An antenna suitable for this entire area implies namely that the radiators and radiator elements provided for this high frequency range are smaller, ie shorter, in size must, which also applies to the antenna bracket. However, this would mean that the entire antenna, including the existing radiator, would have to be changed. However, this is in contradiction to the so-called equal parts concept, according to which, for example, a radiator type is to be used for different purposes.

Eine Zwei-Bereichs-Antenne ist u.a. aus der US 6 191 747 in der B1 bekannt geworden. Es handelt sich um eine Mehrbereichsantenne unter der Verwendung von Spulen zur Phasendrehung zum Aufbau eines Monopol-Gewinn-Strahlers.A two-range antenna is i.a. from US Pat. No. 6,191,747 in B1. It is a multigrade antenna using phase-shift coils to construct a monopole gain radiator.

Aus der WO 0 171 847 A1 ≙ EP 1 187 253 A1 ist eine gattungsbildende Zweibereichs-Kraftfahrzeugantenne mit einem Antennenfuß bekannt geworden, welcher eine Anschlussleitung mit der Strahleranordnung über ein Zwischenleitungsstück verbunden ist. Die hieraus bekannte Antenne dient beispielsweise zum Empfang der Radiofrequenzen.in AM/FM-Band sowie zum Empfang des D-Netzes wie aber auch des E-Netzes im Mobilfunkbereich. Die stabförmige Antennenanordnung umfasst dabei eine Sperrspule, die im geöffneten Zustand die oberhalb sowie unterhalb der Sperrspule vorgesehenen stabförmigen Antennenelemente zu einer gemeinsamen Strahleranordnung zum Empfang der AM/FM-Frequenzbänder zusammenschaltet. Für die höheren Frequenzen im D-Mobilfunkbereich sperrt diese Spule, so dass nur der dem Antennenfuß näher liegende untere Abschnitt der Antenne als entsprechendes Strahlerelement wirkt. Für das im noch kürzeren Frequenzbereich liegende E-Mobilfunkband wirkt dann nur noch eine separate Antenneneinrichtung im Antennenfuß, die zu dem erwähnten Zwischenleitungsstück parallel verläuft und am Ankoppelpunkt der stabförmigen Antenneneinrichtung an dem Zwischenleitungsstück ebenfalls elektrisch angeschlossen ist.From WO 0 171 847 A1 ≙ EP 1 187 253 A1, a generic two-range motor vehicle antenna with an antenna base has become known, to which a connecting line is connected to the radiator arrangement via an intermediate line piece. The antenna known therefrom is used, for example, for receiving the radio frequencies. In AM / FM band and for receiving the D network as well as the E network in the mobile radio area. The rod-shaped antenna arrangement in this case comprises a blocking coil, which in the opened state interconnects the rod-shaped antenna elements provided above and below the blocking coil to form a common radiator arrangement for receiving the AM / FM frequency bands. For the higher frequencies in the D mobile radio range, this coil locks, so that only the lower part of the antenna closer to the antenna base acts as a corresponding radiator element. For the lying in even shorter frequency range E-Mobilfunkband then acts only a separate antenna device in the antenna base, which runs parallel to said intermediate line piece and is also electrically connected at the coupling point of the rod-shaped antenna device to the intermediate line piece.

Ferner ist eine Antennenanordnung aus der EP-A-0 954 054 bekannt geworden. Es handelt sich hierbei um eine gefaltete Antenne mit einer Zuführungs- oder Speiseleitung, die zu einem Verzweigungspunkt führt. Von diesem Verzweigungspunkt gehen in entgegengesetzter Richtung gefaltete Antennenabschnitte aus, nämlich mit einer ersten Länge zum Empfang in einem ersten Frequenzband und mit einer zweiten kürzeren Länge zum Empfang in einem zweiten höheren Frequenzband. Die Länge der gefalteten Antennenabschnitte beträgt dabei beispielswiese λ/4 der ersten Frequenz von beispielsweise 900 MHz, wohingegen die Länge des zweiten gefalteten Leitungsabschnittes λ/4 der zweiten Frequenz von beispielsweise 1800 MHz entspricht.Furthermore, an antenna arrangement from EP-A-0 954 054 has become known. It is a folded antenna with a feed or feedline leading to a branching point. From this branching point folded antenna sections go out in the opposite direction, namely with a first length for reception in a first frequency band and a second shorter length for reception in a second higher frequency band. The length of the folded antenna sections is, for example, λ / 4 of the first frequency of 900 MHz, for example, whereas the length of the second folded line section λ / 4 corresponds to the second frequency of 1800 MHz, for example.

Eine insoweit vergleichbare verzweigte Antennenanordnung mit zwei Antennenabschnitten zum Empfang eines ersten und eines zweiten Frequenzbandes ist grundsätzlich beispielsweise auch aus der EP-A1-0 557 794 als bekannt zu entnehmen.A so far comparable branched antenna arrangement with two antenna sections for receiving a first and a second frequency band is basically, for example, from EP-A1-0 557 794 known as known.

Aufgabe der vorliegenden Erfindung ist es, ausgehend von dem gattungsbildenden Stand der Technik eine verbesserte Mehrbereichs-Antennenanordnung zu schaffen, die insbesondere breitbandiger ist und dies bei vergleichsweise geringstem Bauraum.Object of the present invention is to provide, starting from the generic state of the art, an improved multi-band antenna arrangement, which is in particular broadband and this with relatively minimal space.

Die Aufgabe wird erfindungsgemäß entsprechend den im Anspruch 1 angegebenen Merkmalen gelöst. Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen angegeben.The object is achieved according to the features specified in claim 1. Advantageous embodiments of the invention are specified in the subclaims.

Es muss als durchaus überraschend bezeichnet werden, dass im Prinzip eine an sich sehr bewährte Kraftfahrzeugantenne nunmehr z.B. auch für den UMTS-Standard, also allgemein gesprochen für ein deutlich höheres Frequenzenband einsetzbar ist, und dies ohne Verringerung der Bauhöhe oder Baugröße. Dies wird dadurch möglich, dass die zu einem Strahler für den höheren Frequenzbereich führende elektrische Leitung oder ein zu dem Strahler für den höheren Frequenzbereich führender Bügel mit einer Verlängerung versehen ist. Die Verlängerung kann so umgesetzt werden, dass die Zuführleitungen über einen Verbindungs- oder Kontaktpunkt, worüber der Strahler mit der Zuführleitung elektrisch kontaktiert ist, hinaus verlängert ist und vorzugsweise frei endet. Wird die elektrische Zuführleitung durch einen elektrisch leitfähigen Bügel gebildet, so kann der Bügel über den Kontaktierungspunkt mit dem ersten Strahler hinaus verlängert sein, wobei der Kontaktierungspunkt hier gleichzeitig als Verbindungs- oder sogar Befestigungspunkt für den Strahler mit dient.It must be called quite surprising that, in principle, a very well-proven vehicle antenna Now, for example, for the UMTS standard, so generally speaking for a much higher frequency band is used, and this without reducing the height or size. This is possible because the electrical line leading to a radiator for the higher frequency range or a bracket leading to the radiator for the higher frequency range is provided with an extension. The extension may be implemented so that the supply lines are extended beyond a connection or contact point, over which the radiator is electrically contacted with the supply line, and preferably free ends. If the electrical supply line is formed by an electrically conductive bracket, the bracket can be extended beyond the contact point with the first radiator also, the contact point here serves as a connection or even attachment point for the radiator with.

Üblicherweise wird aber nicht nur ein für den höheren Frequenzbereich vorgesehener Strahler, vorzugsweise in Form eines Bolzens eingesetzt, sondern in Verlängerung dieses Strahlers wird noch eine Spule und daran anschließend ein weiteres Strahlerelement eingesetzt.Usually, however, not only one intended for the higher frequency range radiator, preferably used in the form of a bolt, but in extension of this radiator is still a coil and then another radiator element used.

Dabei ist zu berücksichtigen, dass für niedrige Frequenzbereiche, d.h. also für den Langwellen, Mittelwellen, Kurzwellen, und UKW-Bereich die gesamte Strahleranordnung einschließlich des Antennenbügels als Strahler wirkt. Für den DoCoMo-, den AMPS-, sowie den GSM 900-Bereich (entspricht 810 bis 960 MHz) wirkt noch der Antennenbügel und der untere Teil der eigentlichen Strahleranordnung, d.h. in der Regel des dafür vorgesehenen Strahlerbolzens zusammen mit einem Teil der erwähnten Spule als Strahler. Wird die Frequenz aber weiter angehoben, nämlich beispielsweise im GSM 1800- und GSM 1900-Band (entspricht 1710 Mhz bis 1990 MHz) wirkt nur noch der Antennenbügel und der untere Antennenbolzen als Strahler. Im UMTS-Bereich (1900 bis 2170 MHz) wirkt dann aber nur noch der Antennenbügel und dessen Verlängerung als Strahler.It should be noted that for low frequency ranges, ie for the long waves, medium waves, shortwave, and VHF range, the entire radiator arrangement including the antenna bracket acts as a radiator. For the DoCoMo-, the AMPS and the GSM 900 range (equivalent to 810 to 960 MHz), the antenna bracket and the lower part of the actual radiator arrangement, ie generally the radiator pin provided for this purpose, together with a part of the mentioned coil, still work Radiator. However, if the frequency is further increased, namely, for example, in the GSM 1800 and GSM 1900 band (equivalent to 1710 MHz to 1990 MHz), only the antenna bracket and the lower antenna stud act as radiators. In the UMTS range (1900 to 2170 MHz), however, only the antenna bracket and its extension act as radiators.

Die Erfindung wird nachfolgend anhand von Zeichnungen für mehrere Ausführungsbeispiele erläutert. Dabei zeigen im einzelnen:

Figur 1 :
eine schematische Seitenansicht eines ersten erfindungsgemäßen Ausführungsbeispieles,
Figur 2 :
eine schematische Draufsicht auf den verlängerten Bügel bei dem Ausführungsbeispiel gemäß Figur 1, und
Figur 3 :
eine zu Figur 2 entsprechende Draufsicht bezüglich einer kürzer dimensionierten aber dafür breiteren Verlängerung des Bügels.
The invention will be explained below with reference to drawings for several embodiments. Show in detail:
FIG. 1:
a schematic side view of a first embodiment of the invention,
FIG. 2:
a schematic plan view of the extended bracket in the embodiment of Figure 1, and
FIG. 3:
a plan view corresponding to Figure 2 with respect to a shorter but wider extension of the bracket.

In Figur 1 ist in schematischer Seitenansicht im Querschnitt die Kontur eines Karosseriebleches 1 eines Kraftfahrzeuges gezeigt, vorzugsweise im Dachbereich benachbart zur Heckscheibe, auf welcher eine entsprechende Antenne montiert werden soll.1 shows a schematic side view in cross section of the contour of a body panel 1 of a motor vehicle, preferably in the roof area adjacent to the rear window, on which a corresponding antenna is to be mounted.

Die Sende- und/oder Empfangseinrichtung gemäß Figur 1 umfasst dazu einen Antennenfuß 3, der nach Art eines Gehäuses 5 gestaltet ist.For this purpose, the transmitting and / or receiving device according to FIG. 1 comprises an antenna base 3 designed in the manner of a housing 5.

Das Gehäuse 5 umfasst dazu bevorzugt eine haubenförmige Schutzabdeckung 5a und eine Bodenplatte 5b, die durch geeignete Maßnahmen am Karosserieblech 1 beispielsweise unter Verwendung von Klebeschichten, Isoliermaterialien etc. befestigt sein kann.The housing 5 preferably comprises a hood-shaped Protective cover 5a and a bottom plate 5b, which may be attached by suitable measures on the body panel 1, for example, using adhesive layers, insulating materials, etc.

Ferner ist im Karosserieblech 1 in der Regel zumindest eine Öffnung 9 vorgesehen, worüber elektrische Anschlussleitungen, Koaxialkabel etc. zur Antenne vom Inneren des Kraftfahrzeuges her verlegt sein können. Dazu wird die Bodenplatte des Antennengehäuses entsprechend auch auf dem Kraftfahrzeugdach aufgesetzt, wobei üblicherweise (was in den Zeichnungen nicht näher dargestellt aber hinlänglich bekannt ist) ein als Hohlgewindestab ausgebildeter Gewindedom verwendet wird, der in der Bodenplatte verankert ist und über die Öffnung 9 im Kraftfahrzeugdach ins Kraftfahrzeuginnere hinein ragt. Durch das Innere des Gewindedoms sind dann die Leitungen nach innen verlegt. Vom Inneren des Wagens kann dann eine Zentralmutter auf den Gewindedom aufgeschraubt werden, um die Antenne so am Kraftfahrzeugdach fest zu verankern.Furthermore, in the body panel 1 usually at least one opening 9 is provided, via which electrical connection lines, coaxial cable, etc. can be routed to the antenna from the interior of the motor vehicle ago. For this purpose, the bottom plate of the antenna housing is also placed on the motor vehicle roof, usually (which is not shown in detail in the drawings but well known) used as a hollow threaded rod threaded dome is used, which is anchored in the bottom plate and the opening 9 in the vehicle roof ins Vehicle interior protrudes into it. Through the interior of the threaded dome, the cables are then moved inwards. From the interior of the car, a central nut can then be screwed onto the threaded dome so as to firmly anchor the antenna to the motor vehicle roof.

Von einer im Antennenfuß 3 vorgesehenen Anschlussstelle 11 führt eine Anschlussleitung 13 zur eigentlichen Antenneneinrichtung 15, die im gezeigten Ausführungsbeispiel aus einem ersten Strahler 17, einer bevorzugt in axialer Verlängerung des ersten Strahlers 17 angeordneten Sperrspule 19 und einem sich in axialer Verlängerung der Sperrspule 19 wiederum anschließenden zweiten Strahler 21 besteht.From a connection point 11 provided in the antenna base 3, a connecting line 13 leads to the actual antenna device 15, which in the exemplary embodiment shown consists of a first radiator 17, a blocking coil 19 which is preferably arranged in the axial extension of the first radiator 17 and which in turn adjoins the blocking coil 19 in an axial extension second radiator 21 consists.

Der erste Strahler 17 kann beispielsweise aus einem metallisch leitenden Bolzen bestehen oder Bolzenstruktur aufweisen. Der zweite Strahler 21 soll möglichst elastisch sein und kann beispielsweise aus einem Glasfaserkern bestehen, der mit einer entsprechenden spulenförmigen elektrisch leitenden Anordnung umwickelt ist. Alle möglichen Antennenkonstruktionen sind denkbar, die für den jeweiligen Einsatzzweck in Frage kommen und geeignet sind.The first radiator 17 can for example consist of a metallically conductive bolt or have a bolt structure. The second radiator 21 should be as elastic as possible and may for example consist of a fiberglass core, which is wrapped with a corresponding coil-shaped electrically conductive arrangement. All possible antenna designs are conceivable, which are suitable for the respective application in question and are suitable.

Dabei ist zu berücksichtigen, dass für niedrige Frequenzbereiche, d.h. also für den Langwellen, Mittelwellen, Kurzwellen, und UKW-Bereich die gesamte Strahleranordnung einschließlich des Antennenbügels als Strahler wirkt. Für den DoCoMo-, den AMPS-, sowie den GSM 900-Bereich (entspricht 810 bis 960 MHz) wirkt noch der Antennenbügel und der untere Teil der eigentlichen Strahleranordnung, d.h. in der Regel des dafür vorgesehenen Strahlerbolzens zusammen mit einem Teil der erwähnten Spule als Strahler. Wird die Frequenz aber weiter angehoben, nämlich beispielsweise im GSM 1800- und GSM 1900-Band (entspricht 1710 Mhz bis 1990 MHz) wirkt nur noch der Antennenbügel und der untere Antennenbolzen als Strahler. Im UMTS-Bereich (1900 bis 2170 MHz) wirkt dann aber nur noch der Antennenbügel und dessen Verlängerung als Strahler.It should be noted that for low frequency ranges, i. Thus, for longwave, mediumwave, shortwave, and VHF, the entire radiator arrangement, including the antenna bracket, acts as a radiator. For the DoCoMo, the AMPS and the GSM 900 range (corresponding to 810 to 960 MHz), the antenna bracket and the lower part of the actual radiator arrangement, that is to say the antenna element, are still active. usually the designated radiator pin together with a part of said coil as a radiator. However, if the frequency is further increased, namely, for example, in the GSM 1800 and GSM 1900 band (equivalent to 1710 MHz to 1990 MHz), only the antenna bracket and the lower antenna stud act as radiators. In the UMTS range (1900 to 2170 MHz), however, only the antenna bracket and its extension act as radiators.

Für hohe Frequenzbereiche, beispielsweise im E-Netz (etwa 1800 MHz) oder vor allem auch für den UMTS-Standard (ca. 1900 bis 2170 MHz) sperrt die Spule 19, so dass als Strahlerelement hierfür nur der erste Strahler 17 gemeinsam mit der elektrischen Anschlussleitung 13 wirken.For high frequency ranges, for example in the E-network (about 1800 MHz) or above all for the UMTS standard (about 1900 to 2170 MHz) blocks the coil 19, so that only the first radiator 17 together with the electric radiator element for this purpose Connecting line 13 act.

Die erwähnte Anschlussleitung 13 kann dabei bevorzugt auch aus einem zumindest leicht-elastischen oder teil-elastischen Bügel 13' bestehen, der vorzugsweise in Strahlerrichtung vorgespannt ist. D.h., der Antennenbügel hat bei der Montage des Strahlers die Tendenz auf den unteren Anschlusspunkt des Strahlers (im Inneren des Gehäuses) unter Vorspannung anzuliegen, so dass hier problemlos ein dauerhafter elektrischer Kontakt geschaffen werden kann. Die Strahleranordnung 15 ist dabei üblicherweise mittels einer Schraubverbindung mit dem Antennengehäuse 5 verbindbar, so dass die Antenne, insbesondere wenn Kraftfahrzeuge in eine Waschanlage gefahren werden, vorher problemlos abgeschraubt und anschließend wieder angeschraubt werden kann. Die eigentliche Strahleranordnung 15, die an dem Gehäuse aufschraubbar ist, wird letztlich über das Gehäuse selbst gehalten und gestützt.The aforementioned connecting line 13 may preferably also consist of an at least slightly elastic or partially elastic strap 13 ', which is preferably biased in the radiator direction. That is, the antenna bracket has the tendency to the lower connection point of the radiator (inside the housing) when mounting the spotlight under Pretension to rest, so that here a durable electrical contact can be created easily. The radiator assembly 15 is usually connected by means of a screw to the antenna housing 5, so that the antenna, especially when motor vehicles are driven into a car wash, previously unscrewed and then screwed back easily. The actual radiator assembly 15, which can be screwed onto the housing, is ultimately held and supported by the housing itself.

Um diese Antennenanordnung nunmehr auch für die hohen Frequenzbandbereiche einsetzen zu können, müssten, abgestimmt für den hohen Frequenzbandbereich, nicht nur der erste Strahler bevorzugt in Form eines Bolzens 17 sondern auch die elektrische Anschlussleitung 13 entsprechend verringert werden.To be able to use this antenna arrangement now also for the high frequency band ranges, tuned for the high frequency band range, not only the first radiator preferably in the form of a bolt 17 but also the electrical connection line 13 should be reduced accordingly.

Da dies aber im Widerspruch steht zu dem Gleichteile-Konzept, wonach beispielsweise eine bereits vorhandene Strahleranordnung, die auch für andere Einsatzzwecke verwendet wird, auch im vorliegenden Fall Verwendung finden soll, hat dies zur Folge, dass andere Lösungen gesucht werden müssen.Since this is in contradiction to the common-part concept, according to which, for example, an already existing radiator arrangement, which is also used for other purposes, should find use in the present case, this has the consequence that other solutions must be sought.

Erfindungsgemäß ist dazu in dem Ausführungsbeispiel gemäß Figuren 1 und 2 eine Verlängerung 25 vorgesehen. Diese Verlängerung 25 ist in diesem Ausführungsbeispiel als Verlängerung der Anschlussleitung 13 und damit bevorzugt als Verlängerung des Bügels 13' ausgebildet. Sie führt bevorzugt über den Verbindungs-, Befestigungs- und/oder Kontaktierungspunkt 27 hinaus, an welchem der für den höheren Frequenzbereich vorgesehene Strahler 17, d.h. somit die gesamte Strahleranordnung gegebenenfalls über einen Überbrückungsabschnitt an der elektrischen Anschlussleitung 13 bzw. dem Bügel 13' befestigt und gehalten ist.According to the invention in the embodiment according to Figures 1 and 2, an extension 25 is provided. This extension 25 is formed in this embodiment as an extension of the connecting line 13 and thus preferably as an extension of the bracket 13 '. It preferably leads beyond the connection, attachment and / or contact point 27, at which the radiator 17 provided for the higher frequency range, ie thus the entire emitter assembly is optionally secured and held by a bridging portion on the electrical connection line 13 and the bracket 13 '.

Die Länge und Breite der Verlängerung 25 muss so dimensioniert sein, dass die Antenne insgesamt für den gewünschten höheren Frequenzbereich richtig abgestimmt ist. Diese Abstimmung kann in unterschiedlicher Weise erfolgen, wie sich nachfolgend ergibt.The length and width of the extension 25 must be dimensioned so that the overall antenna is properly tuned for the desired higher frequency range. This vote can be done in different ways, as follows.

In Figur 2 ist auszugsweise in schematischer Draufsicht die Verlängerung 25 in ihrem über den Verbindungs- und/oder Befestigungspunkt und/oder Kontaktierungspunkt 27 hinaus verlängerten Bereich gezeigt. Daraus ist zu ersehen, dass diese Verlängerung im Prinzip drahtförmig gestaltet sein kann, auch wenn sie als eher steiferer, formstabiler und möglicherweise elastischer Bügel 13' ausgebildet ist.In FIG. 2, the extension 25 is shown in excerpts in a schematic plan view in its extended region beyond the connection and / or attachment point and / or contact point 27. It can be seen that this extension can in principle be designed wire-shaped, even if it is designed as a rather stiffer, dimensionally stable and possibly elastic strap 13 '.

Abgesehen von einer Verlängerung gemäß dem Ausführungsbeispiel nach den Figuren 1 und 2 kann die Verlängerung 25 auch kürzer dimensioniert werden, wenn sie demgegenüber - wie es sich insbesondere aus der Draufsicht gemäß Figur 3 ergibt - breiter dimensioniert wird als in dem Ausführungsbeispiel gemäß Figuren 1 und 2.Apart from an extension according to the embodiment according to FIGS. 1 and 2, the extension 25 can also be dimensioned shorter if, in contrast, as is apparent in particular from the plan view according to FIG. 3, it is dimensioned to be wider than in the exemplary embodiment according to FIGS ,

Claims (7)

  1. Antenna for a receiving and/or transmitting device for motor vehicles, having the following features:
    - an antenna foot (3) is provided
    - the antenna element arrangement (17, 21) has at least one first and one second antenna element (17, 21),
    - with the first antenna element arrangement (17) being connected to the second antenna element arrangement (21) via a lock-out coil (19), with the lock-out coil (19) opening and the first and second antenna element arrangement (17, 19) acting as a common antenna element arrangement at low frequencies, while in contrast the lock-out coil (19) closes at higher frequencies,
    - having a connecting line (13) which is provided in the antenna foot and leads to a contact-making point (27) at the lower end of the first antenna element arrangement, and
    - having a further antenna element device for an even higher frequency range, which is provided in the antenna foot (3), originating from the contact-making point (27),
    characterized by the following further features
    - in a side view of the antenna, the further antenna element device is in the form of an extension (25), which goes beyond the contact-making point (27) of the connecting line (13), and
    - the extension (25) is part of the connecting line (13) .
  2. Antenna according to Claim 1, characterized in that the extension (25) is arranged with its free end approximately at right angles to the axial longitudinal extent of the first antenna element arrangement (17).
  3. Antenna according to Claim 1 or 2, characterized in that the extension (25) and the connecting line (13) are arranged opposite the antenna element arrangement (17).
  4. Antenna according to one of Claims 1 to 3, characterized in that the extension (25) is in the form of a wire, rod or plate.
  5. Antenna according to one of Claims 1 to 4, characterized in that the connecting line (13) is formed like a bracket (13').
  6. Antenna according to Claim 5, characterized in that the extension (25) together with the connecting line (13) is in the form of a common bracket (13').
  7. Antenna according to one of Claims 1 to 6, characterized in that the connecting line (13) comprises an at least slightly elastic or partially elastic bracket (13') which, in the direction of the first antenna (17) rests in a prestressed manner on its lower end.
EP03742563A 2002-02-22 2003-02-20 Antenna for a receiver and/or transmitter, especially a roof antenna for motor vehicles Revoked EP1366541B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10207703 2002-02-22
DE10207703A DE10207703B4 (en) 2002-02-22 2002-02-22 Antenna for a receiving and / or transmitting device, in particular as a roof antenna for motor vehicles
PCT/EP2003/001751 WO2003071630A1 (en) 2002-02-22 2003-02-20 Antenna for a receiver and/or transmitter, especially a roof antenna for motor vehicles

Publications (2)

Publication Number Publication Date
EP1366541A1 EP1366541A1 (en) 2003-12-03
EP1366541B1 true EP1366541B1 (en) 2006-11-08

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EP03742563A Revoked EP1366541B1 (en) 2002-02-22 2003-02-20 Antenna for a receiver and/or transmitter, especially a roof antenna for motor vehicles

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US (1) US6933899B2 (en)
EP (1) EP1366541B1 (en)
JP (1) JP4073403B2 (en)
KR (1) KR101027547B1 (en)
CN (1) CN100459289C (en)
AT (1) ATE344976T1 (en)
AU (1) AU2003210327A1 (en)
BR (1) BR0303216A (en)
CA (1) CA2441467C (en)
DE (2) DE10207703B4 (en)
ES (1) ES2275103T3 (en)
HK (1) HK1065169A1 (en)
MX (1) MXPA03010097A (en)
PL (1) PL206563B1 (en)
RU (1) RU2313161C2 (en)
WO (1) WO2003071630A1 (en)

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RU2003127836A (en) 2005-03-27
US6933899B2 (en) 2005-08-23
CN100459289C (en) 2009-02-04
JP2005518696A (en) 2005-06-23
PL368682A1 (en) 2005-04-04
ES2275103T3 (en) 2007-06-01
BR0303216A (en) 2004-07-06
WO2003071630A1 (en) 2003-08-28
ATE344976T1 (en) 2006-11-15
EP1366541A1 (en) 2003-12-03
DE10207703B4 (en) 2005-06-09
RU2313161C2 (en) 2007-12-20
PL206563B1 (en) 2010-08-31
CA2441467C (en) 2009-11-24
US20040056809A1 (en) 2004-03-25
MXPA03010097A (en) 2004-03-16
KR101027547B1 (en) 2011-04-06
KR20040080926A (en) 2004-09-20
CA2441467A1 (en) 2003-08-28
JP4073403B2 (en) 2008-04-09
AU2003210327A1 (en) 2003-09-09
DE10207703A1 (en) 2003-09-11
HK1065169A1 (en) 2005-02-08
DE50305615D1 (en) 2006-12-21
CN1507676A (en) 2004-06-23

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