EP1240685B1 - Antenne pour vehicule - Google Patents

Antenne pour vehicule Download PDF

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Publication number
EP1240685B1
EP1240685B1 EP20000977423 EP00977423A EP1240685B1 EP 1240685 B1 EP1240685 B1 EP 1240685B1 EP 20000977423 EP20000977423 EP 20000977423 EP 00977423 A EP00977423 A EP 00977423A EP 1240685 B1 EP1240685 B1 EP 1240685B1
Authority
EP
European Patent Office
Prior art keywords
vehicle antenna
radiator
vehicle
antenna
piece
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP20000977423
Other languages
German (de)
English (en)
Other versions
EP1240685A1 (fr
Inventor
Dirk Wendt
Martin Kuhn
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hirschmann Electronics GmbH and Co KG
Hirschmann Electronics GmbH
Original Assignee
Hirschmann Electronics GmbH and Co KG
Hirschmann Electronics GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hirschmann Electronics GmbH and Co KG, Hirschmann Electronics GmbH filed Critical Hirschmann Electronics GmbH and Co KG
Publication of EP1240685A1 publication Critical patent/EP1240685A1/fr
Application granted granted Critical
Publication of EP1240685B1 publication Critical patent/EP1240685B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
    • H01Q9/32—Vertical arrangement of element
    • H01Q9/38—Vertical arrangement of element with counterpoise
    • 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
    • H01Q1/3283—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle side-mounted antennas, e.g. bumper-mounted, door-mounted
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • 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

Definitions

  • the invention relates to a vehicle antenna, which is preferably intended for mobile radio according to the preamble of claim 1.
  • Such antennas as they are known as so-called disc antennas (see for example DE 44 43 596 A1) with radiators integrated in vehicle windows are known, have the disadvantage that they are arranged in an undesirable manner visibly around the vehicle are and require complex connection equipment.
  • Vehicle antennas that are not visible are known, for example, from WO 99 21 247 A and DE 298 18 430 U.
  • the first-mentioned publication describes antennas which are integrated in a non-conductive housing, for example a rear view mirror or a third brake light.
  • the view cover is brought about by the non-transparent plastic housing.
  • the antenna known from DE 298 18 430 U is for an arrangement below a body part, such as the trunk lid, provided.
  • vehicle antennas that are not visible are also known from so-called bumper antennas.
  • DE 41 16 232 A1 describes an antenna integrated in a non-conductive vehicle bumper, which is not visible as a result, but is at great risk in the event of a crash. This applies in particular to training with two probes connected to one another in the corner regions of the bumper by a line and possibly a line coupler, because the antenna is no longer functional even if the connecting line is interrupted.
  • the required minimum distance of the spotlights from the metallic body serving as a reflector is increasingly rare in modern vehicles because the bumpers are no longer on display for design and safety reasons, but are arranged close to the body.
  • the mutual distance is sometimes less than 20 mm, which results in a too strong capacitive coupling in the frequency ranges provided for mobile radio, which practically causes a short circuit of the antenna.
  • a vehicle antenna known from DE 198 30 811 A1 such a small distance is also not possible because of the radar housing arranged on the inside of the bumper.
  • the known bumper antennas are therefore severely limited in their area of application.
  • an additional splash-proof opening is required to introduce the connecting line into the interior of the body, thereby increasing the manufacturing and assembly costs.
  • the invention is therefore based on the object of a vehicle antenna at the outset to create the type mentioned in the simplest and cheapest possible way not visible, easy to connect, independent of the body material as well as their structure is not restricted by the part receiving them is not reduced the driver's field of vision and the vehicle interior and has a low risk of crash damage, in its effectiveness is independent of the distance of the spotlight from the body and none special body bushing required for a connecting cable.
  • the characterizing features of claim 1 Because the antenna and the connecting line are not part of the attachment, the risk of damage, at least in the event of minor collisions, is significantly reduced in comparison to bumper antennas.
  • the add-on part acts as a visual cover without additional effort, so that there is no obvious indication of the presence of a mobile radio device with the associated risk of theft. Above all, however, the separation of the antenna and the covering add-on part means that both can be optimally designed without compromise according to their desired electrical and mechanical function and do not result in any restrictions on usable space.
  • the arrangement of the radiator in a body opening, in which the conductive body therefore does not serve as a reflector, also makes the antenna completely independent of the distance of the attachment from the radiator.
  • the antenna is therefore also suitable for use in modern vehicles in which this distance is increasingly reduced.
  • the support part can be designed without any effort so that any emitter structures can be attached to it.
  • no additional and specially sealed body opening is required to pass the antenna connection cable; rather, cabling on the structural side is made possible in a cost-saving manner.
  • the Counterweight can be connected to an additional reference potential such as For example, that of a metallic body can be dispensed with, thereby reducing the effort is further reduced in manufacture and assembly.
  • the training does as a coordinated counterweight and the dimensioning of the invention Body opening a lock for jacket shafts on the feed line.
  • a slot antenna according to claim 5 For installation sites with a low height, especially behind relatively narrow ones Crash protection strips, is an embodiment of the vehicle antenna according to the invention Suitable as a slot antenna according to claim 5, because the length of the body opening must be greater than ⁇ / 2, but its height (slot width) is small.
  • An embodiment of the vehicle antenna according to claim 6 is particularly effective, regardless of whether it is designed as a monopole or as a slot antenna. Because the reflector only emits radiation to the outside, ie in the desired direction, and this with increased performance. The distance of the reflector from the spotlight can be exact have the optimal radio frequency value and is not, as with the bumper antenna, compromise deteriorating as the radiation properties shorten.
  • the diagram is advantageous adaptable to the requirements of the individual case within certain limits.
  • the directivity can be increased in certain angular ranges become.
  • a dual-band antenna is created with minimal effort, which can be designed, for example, for the D and E network.
  • These locking elements are simple and expediently constructed as LC elements (claim 11). However, they can also be designed as line resonant circuits.
  • the board gives the radiator stability despite the thin conductor and is also much cheaper to attach than pure antenna wires.
  • the LC blocking elements are simple and can be inserted into the conductor tracks in accordance with both the mechanical and the electrical requirements, advantageously in accordance with claim 13 in SMD technology.
  • the dielectric of the circuit board also has an electrical shortening effect, so that the radiators and counterweights can be made smaller.
  • the vehicle antenna according to claim 14 is therefore provided, the entire circuit board to be splash-proof coated with insulating material. It's special about that simple and practical to encapsulate or cast this component. At this Execution it is also possible to create practically any outer contour so that the component can be optimally adapted to the shape of the mounting surface.
  • the potting compound also allows a defined component to be encased To give elasticity or to maintain its elasticity, especially then is advantageous if such components on strongly vibrating or vibrating Elements such as Vehicle parts are attached.
  • thermoplastic hot-melt adhesive as a potting material according to claim 15 is particularly advantageous because, because of its short solidification time and the possibility of carrying out the injection molding process in the low-pressure range, it enables time-saving and inexpensive production.
  • thermoplastic hot-melt adhesive due to the gluing by the hot-melt adhesive, an absolute tightness and at the same time a high strain relief of parts led out of the sheathing, such as cable sheaths, is achieved.
  • the thermoplastic hot-melt adhesive forms a chemical bond with them, at least on the surface, which is absolutely leak-proof and ensures high strain relief.
  • the circuit board is on an existing one for other purposes non-conductive support member attached (claim 16). This is not just one ensures stable arrangement, but this spotlight component at any time on the vehicle retrofitted. It can of course also be used as initial equipment on or in one Plastic carrier part can be integrated.
  • a particularly suitable mounting location for the antenna according to the invention is provided in most cars for pressure equalization when the vehicle doors are quickly closed on both sides of the trunk, which are covered by plastic bumpers and are not easily visible behind them (claim 17).
  • louvre-type ventilation flaps are usually fitted, which are provided with lugs that can be moved outwards, which open outwards under pressure from the vehicle interior and otherwise rest against the ventilation flaps to prevent the ingress of water.
  • the monopoly and possibly the counterweights having components according to claim 18 to be attached to the ventilation flaps, whereby, of course, the mobility of the rags must not be hindered.
  • a particularly simple and sufficiently stable attachment is listed in claim 19.
  • the holding pins are inexpensive according to claims 20 and 21 made in one piece with the ventilation flaps, for example by injection molding.
  • the the antenna part having the radiator is then only for mounting on the associated one To snap on the ventilation flap.
  • the vehicle antenna consists of two separate radiator parts 1, each with one Grid-shaped reflector, not shown, arranged towards the vehicle interior.
  • Each radiator part 1 consists of a monopole 2 and two adapted counterweights 3 connected to its base point A, which protrude in opposite directions orthogonally, and one LC blocking element 4 which is switched into the monopoly 2 and the counterweights 3.
  • Monopoly 2 and counterweights 3 are arranged as printed conductor tracks on a one-sided laminated T-shaped printed circuit board 5, into which the LC blocking elements designed as SMD components are connected in series. The total length of the monopole 2 and the counterweights 3 is matched to the D-network frequency range.
  • the LC blocking elements 4 are designed for the E-network frequency range and are arranged in such a way that their distance from the base point A of the monopole 2 corresponds approximately to 1 ⁇ 4 of the mean operating wavelength in this frequency range. This creates a broadband dual-band antenna that works in both the D and E network frequency ranges.
  • Each radiator part 1 is on the outward-facing side in a plastic injection molding process manufactured ventilation flap 6 attached. This points to this one-piece retaining pin 7 with locking lugs 8 on the 1 holes when the radiator part is mounted 9 penetrate the circuit board 5 and reach behind it with a click.
  • the fan flaps 6 each have a frame 10 and four sloping grille surfaces 11, each of which is attached to the frame 10 with the upper longitudinal edge this edge is assigned to movable tabs 12, of which only one in FIG. 2 is shown.
  • the fan flaps 6 are in body openings on both sides of the trunk of the vehicle 13 14 attached by the side extensions of the rear bumper 15 are arranged concealed. If there is excess pressure inside the vehicle, for example when a vehicle door is closed quickly, it is closed Air escaping from the fan flaps to the outside is broken down.
  • the Tabs 12 first pivoted outwards by the excess pressure; after pressure equalization they are then again close to the grid surfaces 11 and protect the Trunk so before splashing water.
  • the two radiator parts 1 are (in the known from DE 41 16 232 A1 Way) interconnected via feed lines and a line coupler and via a connection cable to a transceiver for the mobile radio areas of the D and E network supplied.

Landscapes

  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Details Of Aerials (AREA)
  • Support Of Aerials (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)

Claims (22)

  1. Antenne de véhicule, notamment pour émetteur mobile, avec au moins un élément rayonnant (1) intégré à une ouverture de la carosserie (14) et une conduite de connection, caractérisée par le fait que, le au moins un élément rayonnant (1) est disposé sur un support (6) non-conducteur, disposé dans la carosserie et couvert par une pièce de structure (15) séparée, non transparente et non-conductrice.
  2. Antenne de véhicule selon la revendication 1, caractérisée par le fait que, la pièce de structure est un pare-chocs en matière plastique (15).
  3. Antenne de véhicule selon la revendication 1, caractérisée par le fait que, la pièce de structure est une baguette de protection.
  4. Antenne de véhicule selon l'une des revendications 1 à 3, caractérisée par le fait que, le au moins un élément rayonnant (1) est réalisé comme un monopole (2) avec contrepoids accordé (3) et l'ouverture de la carosserie (14) est de forme rectangulaire, ses dimensions étant > 1/6 de la longueur d'onde de fonctionnement moyenne (λ) dans le sens du rayonnement et, perpendiculairement à celui-ci, > λ/3.
  5. Antenne de véhicule selon l'une des revendications 1 à 3, caractérisée par le fait que, l'élément rayonnant et l'ouverture de la carosserie sont configurés comme une antenne à fente.
  6. Antenne de véhicule selon l'une des revendications 1 à 5, caractérisée par le fait que, il est prévu un réflecteur disposé vers l'intérieur du véhicule par rapport à l'élément rayonnant (1).
  7. Antenne de véhicule selon la revendication 6, caractérisée par le fait que, le réflecteur est réalisé en forme de grille.
  8. Antenne de véhicule selon les revendications 1 à 6, caractérisée par le fait que, il est prévu deux éléments rayonnants (1) connectés ensemble.
  9. Antenne de véhicule selon la revendication 8, caractérisée par le fait que, les éléments rayonnants (1) sont disposés sur les deux côtés longitudinaux de la carosserie du véhicule (13).
  10. Antenne de véhicule selon la revendication 4, caractérisée par le fait que la longueur du monopole (2) et, s'ils sont présents, des contrepoids (3) sont dimensionnées pour un domaine de fréquences inférieures et en ce qu'un élément de filtrage (4) pour un domaine de fréquences supérieures est inserré chaque fois dans le monopole (2) et, s'ils sont présents, dans les contrepoids (3), en ce que leur longueur entre l'élément de filtrage (4) et le point de connexion de l'antenne (A) est accordée sur le domaine de fréquences supérieures.
  11. Antenne de véhicule selon la revendication 10, caractérisée par le fait que les éléments de filtrage (4) sont des éléments LC.
  12. Antenne de véhicule selon la revendication 10 ou 11, caractérisée par le fait que, le monopole (2) et, s'ils sont présents, les contrepoids (3) sont disposés comme conducteurs imprimés sur une plaque de circuits imprimés.
  13. Antenne de véhicule selon la revendication 12, caractérisée par le fait que, les éléments de filtrage (4) sont constitués par des composants SMD et introduits dans les conducteurs.
  14. Antenne de véhicule selon les revendications 12 et 13, caractérisée par le fait que, la plaque de circuits imprimés (5), si elle est présente avec des éléments de filtrage (4) disposés dessus, est entourée de matériau isolant, notamment enrobée.
  15. Antenne de véhicule selon la revendication 14, caractérisée par le fait que, le matériau d'enrobage est une colle à haut point de fusion.
  16. Antenne de véhicule selon l'une des revendications 12 à 15, caractérisée par le fait que, la plaque de circuits imprimés est fixée sur un support (6) en matériau isolant.
  17. Antenne de véhicule selon l'une des revendications 1 à 16, caractérisée par le fait que, le au moins un élément rayonnant (1) est disposé dans une ouverture d'aérateur (14) de la carosserie du véhicule (13).
  18. Antenne de véhicule selon la revendication 17, caractérisée par le fait que, le au moins un élément rayonnant (1) est fixé sur le volet d'aération (6) du véhciule.
  19. Antenne de véhicule selon la revendication 18, caractérisée par le fait que, pour fixer l'élément rayonnant (1) sur le volet d'aération (6), il est prévu des tétons de maintien pourvus de becs d'accrochage (8) qui, lorsque l'élément rayonnant est monté, traversent des perforations (9) de ce dernier et s'accrochent par derrière.
  20. Antenne de véhicule selon la revendication 19, caractérisée par le fait que, les tétons de maintien (7) sont formés d'un seul tenant avec le support, de préférence avec les volets d'aération (6).
  21. Antenne de véhicule selon la revendication 20, caractérisée par le fait que, le support (6) et les tétons de maintien (7) sont une pièce moulée par injection.
  22. Antenne de véhicule selon l'une des revendications 1 à 4 et 6 à 20, caractérisée par le fait que, l'élément rayonnant (1), présente une capacité terminale.
EP20000977423 1999-12-23 2000-11-20 Antenne pour vehicule Expired - Lifetime EP1240685B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19962736 1999-12-23
DE19962736A DE19962736C2 (de) 1999-12-23 1999-12-23 Fahrzeugantenne
PCT/EP2000/010383 WO2001048865A1 (fr) 1999-12-23 2000-11-20 Antenne pour vehicule

Publications (2)

Publication Number Publication Date
EP1240685A1 EP1240685A1 (fr) 2002-09-18
EP1240685B1 true EP1240685B1 (fr) 2003-07-23

Family

ID=7934316

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20000977423 Expired - Lifetime EP1240685B1 (fr) 1999-12-23 2000-11-20 Antenne pour vehicule

Country Status (7)

Country Link
US (1) US6686888B1 (fr)
EP (1) EP1240685B1 (fr)
JP (1) JP3629466B2 (fr)
AT (1) ATE245856T1 (fr)
CA (1) CA2395506A1 (fr)
DE (2) DE19962736C2 (fr)
WO (1) WO2001048865A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005042688A1 (de) * 2005-09-08 2007-03-15 Bayerische Motoren Werke Ag Verkleidungsteil für ein Kraftfahrzeug

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1279531A3 (fr) * 2001-07-26 2003-11-05 TRW Automotive Electronics & Components GmbH & Co. KG Bouche d'air
EP1410931B1 (fr) * 2002-10-16 2006-04-12 TRW Automotive Electronics & Components GmbH & Co. KG Organe d'aération avec composant électronique intégré
EP1471603A3 (fr) * 2003-04-04 2005-01-05 Hirschmann Electronics GmbH & Co. KG Antenne dans une grille d'aération d'un véhicule
DE102004036453A1 (de) * 2004-07-27 2006-03-23 Hirschmann Electronics Gmbh & Co. Kg Antenne zur Anwendung für Kommunikation (Senden und/oder Empfangen) in einem Fahrzeug, insbesondere in einem Personenkraftwagen
US7339482B2 (en) * 2005-09-30 2008-03-04 The Boeing Company Shipping container air-vent cover antenna housing
DE102006006922A1 (de) * 2005-10-28 2007-05-03 Hirschmann Car Communication Gmbh Antennenstruktur auf Träger, welcher an oder in einem Fahrzeugbauteil befestigbar ist
US7425925B2 (en) * 2006-02-27 2008-09-16 Nissan Technical Center North America, Inc. Vehicle security system
US7234741B1 (en) 2006-03-07 2007-06-26 Nissan Technical Center North America, Inc. Vehicle bumper assembly
US8508419B2 (en) * 2010-10-22 2013-08-13 GM Global Technology Operations LLC Multiple antenna element system and method
US9112271B2 (en) 2011-10-09 2015-08-18 Lenovo (Beijing) Co., Ltd. Terminal device

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005042688A1 (de) * 2005-09-08 2007-03-15 Bayerische Motoren Werke Ag Verkleidungsteil für ein Kraftfahrzeug

Also Published As

Publication number Publication date
WO2001048865A1 (fr) 2001-07-05
DE19962736C2 (de) 2001-11-22
JP3629466B2 (ja) 2005-03-16
EP1240685A1 (fr) 2002-09-18
DE19962736A1 (de) 2001-07-26
CA2395506A1 (fr) 2001-07-05
ATE245856T1 (de) 2003-08-15
JP2003518860A (ja) 2003-06-10
DE50003040D1 (de) 2003-08-28
US6686888B1 (en) 2004-02-03

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