EP1920495B1 - Ensemble antenne a plusieurs zones - Google Patents

Ensemble antenne a plusieurs zones Download PDF

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Publication number
EP1920495B1
EP1920495B1 EP06777925A EP06777925A EP1920495B1 EP 1920495 B1 EP1920495 B1 EP 1920495B1 EP 06777925 A EP06777925 A EP 06777925A EP 06777925 A EP06777925 A EP 06777925A EP 1920495 B1 EP1920495 B1 EP 1920495B1
Authority
EP
European Patent Office
Prior art keywords
antenna
conductor
heating
segment
conductor structure
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.)
Active
Application number
EP06777925A
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German (de)
English (en)
Other versions
EP1920495A1 (fr
Inventor
Rainer Kuehne
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.)
Continental Advanced Antenna GmbH
Original Assignee
Blaupunkt Antenna Systems GmbH and Co KG
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 Blaupunkt Antenna Systems GmbH and Co KG filed Critical Blaupunkt Antenna Systems GmbH and Co KG
Publication of EP1920495A1 publication Critical patent/EP1920495A1/fr
Application granted granted Critical
Publication of EP1920495B1 publication Critical patent/EP1920495B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/1271—Supports; Mounting means for mounting on windscreens
    • H01Q1/1278—Supports; Mounting means for mounting on windscreens in association with heating wires or layers
    • 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
    • H01Q5/40—Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements

Definitions

  • the invention relates to an antenna arrangement, in particular for a vehicle window pane with a heating conductor field, in particular on or in a vehicle window pane, and an antenna conductor structure which is coupled in a high frequency manner to the heating conductor field.
  • Such an antenna arrangement is known from DE 39 10 031 A1 known.
  • a similar antenna arrangement shows the WO 02/056412 A2 , There two antenna elements are provided for diversity evaluations.
  • the WO 99/66587 shows an antenna arrangement for diversity operation.
  • the Schuschfeld a motor vehicle window pane is used in conjunction with additional galvanic not connected to the Schuleiterfeld and located between Schuleiterfeld and the upper edge of the vehicle window line structures as an antenna for the reception of LMK, FM and optional TV signals.
  • Antenna arrangements are also known which form antennas for LMK and FM reception from the galvanically contacted heating conductor field.
  • Bordnetzentkoppelnde filter elements for FM / TV and LMK reception due to the galvanic connections between antenna connection point and heating conductor necessary ( EP 0269723 B1 ).
  • the heating conductors are substantially horizontal and substantially parallel to the metallic boundaries of the disc.
  • the on-board network interference transmitted by the heating current to the heating conductors serving as antenna must be are known to be suppressed by modules with high-frequency high-impedance behavior when the antenna connection point is galvanically connected to the Schuleiterfeld.
  • rod core chokes which are integrated into the heating current-supplying line parts and are usually located near the heating current connections of the heating conductor field.
  • AM blocking circuit is a very cost-intensive module whose own weight (about 200 g) leads to high mechanical loads on both the printed circuit board and the screwing points and is thus to be evaluated as extremely critical in the context of quality assurance. The vibrations occurring under normal driving conditions cause solder joints to be heavily stressed. In compact vehicles, this AM-blocking circuit is often mounted in the rear tailgate, so that when slamming the flap accelerations of about 50 g can occur and the entire component tears off the screwing points.
  • antenna arrangements in laminated glass panes such as front windows of cars.
  • the antenna wires in the space between the two glass panes, whereby an increased effort in contacting arises.
  • the contacting is often realized with so-called flat cables, which are introduced during the production process in the laminated safety glass. After mounting the disc in the vehicle, this flat cable is then connected to an electronic module.
  • the document EP 0 559 196 A1 relates to a generic multigrade antenna assembly comprising, inter alia, a glass pane antenna, wherein in the disc, a heating element is introduced.
  • the likewise arranged in the disc antenna also has in the heating field on lateral recesses, wherein an antenna conductor structure outside of the heating field, that is arranged substantially in the lateral recesses of the heating field.
  • the document US 2004/0056810 A1 discloses a glass antenna having a first and a second antenna element, each capacitively coupled to a heater.
  • the heating element serves to receive signals in two reception areas.
  • an antenna conductor structure for at least two receiving areas outside the Schuleiterfeldes which is arranged substantially in the lateral recesses of the Schuleiterfeldes, a high-frequency low-resistance but not galvanic coupling the antenna conductor structure with the Schuleiterfeld, which is effective for one of the at least two receiving areas, the reception of LMK and diversified VHF / TV signals in a single window pane is realized, the area to be heated is as large as possible.
  • the uniform condensation of the disc is over the Conductor width of the sub-heating conductor, so on the resulting ohmic resistance of the heating conductors ensured.
  • the area which is swept by the windshield wiper in the case of the rear window of a compact vehicle can be completely heated without being affected by the antenna conductor structure, since this is arranged substantially in a lateral area outside the Schuleiterfeldes, which is not swept by the windscreen wiper ,
  • the arrangement according to the invention overcomes a significant disadvantage of the aforementioned antenna arrangements, namely the need for a surface, e.g. in the upper part of the window, which can not be heated due to the lack of heat conductors and therefore can not be defrosted. Especially in cars with small windows of the resulting heatable area is impermissibly small.
  • the multigrade antenna structure according to the invention has the particular advantage that the area which is swept over by a rear window wiper is heated completely or at least substantially. At the same time a separate antenna conductor is available, which can be designed without mutual influence to the heating field in terms of optimal reception behavior.
  • the structure of the heating element is designed in particular in the middle region of the pane.
  • the coupling is high frequency low impedance, for example, capacitive - electrical system interference that are transmitted via the heating current, the antenna function less affect and filter measures are much easier and cheaper to implement or may possibly completely omitted.
  • the invention relates to an antenna arrangement, which is characterized, inter alia, in that a first segment is provided, which fills the vehicle window in its full width and a second segment is provided in only a portion of the width of the vehicle window, which is swept by the free wiper end.
  • the invention particularly relates to an antenna arrangement, which is characterized in that the antenna conductor structure is provided for the at least two receiving areas substantially in that lateral portion / recess of the width of the vehicle window, which is not filled by the second segment.
  • FIG. 1 shows a vehicle-glass antenna for multi-range reception, in particular for LMK and FM reception with the concomitant use of Schuleiterfeldes.
  • the heating conductors 3 are arranged parallel to one another. They open in a first segment 1, which fills the vehicle window in its full width, respectively at their left and right ends in a busbar 4.
  • the Schuleiterfeld on a second segment 2 which is not over the full width of the vehicle window extends, but only over that area, which is swept by the free wiper end.
  • the swept by the windshield wiper area 6 is shown as a dashed semicircle.
  • the width of the second segment 2 which also has two busbars 4 and is connected in parallel at the outermost heating conductor of the first segment 1 in the upper region, is adapted to the sweeping region of the windshield wiper such that the entire wiper region can be defrosted.
  • the lateral recesses 5 of the vehicle window which arise because the second segment 2 is provided in only a portion of the width of the vehicle window are used by Antennenleiter Modellen 7 without affecting the Scheiben Abtauung.
  • antenna conductor structure 7 consists of three parallel conductors in both the left and in the right recess 5.
  • the antenna conductor 8 at the top connects the Antennenleiter Modellen in the left and right recess.
  • the parallel-guided individual conductors of the antenna conductor structure 7 are combined in the region of the right-hand recess at one point to form an antenna connection point 9.
  • the associated mass point 10 is advantageously located in the immediate vicinity of the metallic body surrounding the vehicle window.
  • An antenna signal amplifier 11 separately for AM (LMK range) and FM is in close proximity. About the subsequent RF cable 12, the antenna signals are routed to the radio 13.
  • the supply voltage U b to the amplifier 11 can be transmitted via the RF cable.
  • the antenna connection point 9 is galvanically connected only to the antenna conductor structure 7, but not to the heating conductor field 1.
  • the heating circuit consists of the heating conductors of the Schuleiterfeldes 1, the busbars 4, the FM chokes 14 and the heating current supply source 15th
  • the antenna conductor structure in FIG. 1 is especially designed so that resonant behavior occurs in the VHF range. At the same time, it is as long as possible to ensure sufficient reception performance for the LMK (AM) range and optimum mass reception capacity.
  • LMK LMK
  • this embodiment by the proximity of at least one antenna conductor of the antenna conductor structure to the heating field 1 in addition a high-frequency low-impedance, in particular capacitive, coupling, so that for FM frequencies practically the entire Schuleiterfeld is available as an effective antenna surface.
  • This high-frequency technology low-impedance coupling to Schuleiterfeld turn on board filter elements are necessary in this case. It is also possible to insert conductor parts into the pane, which are placed essentially not for reception but mainly for optical reasons in order to generate a uniform visual appearance.
  • the heating conductor structure of the pane is preferably formed so that the wiper area can be heated completely or at least substantially.
  • the uniform heating of the upper section can according to FIG. 2 be realized as follows.
  • the conductor width of conductor L1 is assumed to be a standard value of 0.5 mm.
  • the conductor width of the conductors L2 and L3 by a factor of 7/3 must be less than that of the conductor L1, so in this example about 0, 2mm.
  • the vertical conductor sections have a greater width in order to ensure the current distribution on the conductors L2.
  • the heat conductor structure is usually applied by screen printing on the disc with the above-mentioned nominal width of 0.5 mm, so that also with regard to manufacturing tolerances of the screen, a continuous pressure of the conductors L2 and L3 (then with the width of 0.2 mm) is guaranteed.
  • the dimensioning of the strip width is of course only listed here by way of example. The exact dimensioning must be determined in conjunction with the size of the wheel, the wiper range and the manufacturing tolerances of the screen printing process.
  • the line structure is applied by conventional methods on a window pane, wherein it is irrelevant in the context of the invention, whether it is a window safety glass or laminated safety glass.
  • Said window pane is surrounded by a metallic frame and usually designed as a rear window of a motor vehicle.
  • FIG. 3 shows a further embodiment in which a second antenna structure 71 is formed with a plurality of antenna conductors on the opposite left side with an antenna connection point 18 and a closely adjacent ground terminal 16.
  • TV reception is implemented by the connected electronic module 17.
  • the second antenna structure 71 is also capacitively coupled, in particular for VHF and / or TV reception, to the heating conductor field 1.
  • FIG. 4 shows a third embodiment in which the second VHF antenna is formed of a conductor pattern 71 which is not electrically connected to the conductor pattern 7 of the first antenna.
  • FIG. 5 shows an embodiment in which the second VHF antenna structure by galvanic contacting 19 of the Schuleiterfeldes 1 and a closely adjacent ground terminal 16 emerges.
  • the second antenna structure is thus formed in this case essentially by the Schuleiterfeld.
  • Other antennas may also be formed in the same way from the heating conductor field at a different location, eg two additional ones in order to generate a four-antenna system, in particular for diversity reception.
  • the conductors 72 are provided either for design reasons only - symmetrical appearance - or are capacitively coupled to the conductors 7 to improve the resonance behavior and / or increase the antenna gain.
  • a second FM amplifier is inserted in the same mechanical component 11.
  • the second FM antenna is formed by galvanic contacting 20 of the heating field 1, while the first FM antenna to the component 11 consists of the conductor structure 7 with the contact 9.
  • the two outputs of the component 11 can either directly to the radio 13 with FM diversity supplied or alternatively, the supply to a separate Diversitybox is provided.
  • the diversity logic can also be integrated in the component 11.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Details Of Aerials (AREA)
  • Support Of Aerials (AREA)

Abstract

L'invention concerne un ensemble antenne à plusieurs zones destiné à une vitre de véhicule. Cet ensemble antenne comprend une structure conductrice d'antenne (7) située dans des évidements latéraux (5) du champ conducteur de chaleur (1, 2). Cette structure conductrice d'antenne (7) est couplée au champ conducteur de chaleur (1, 2) à basse impédance relativement aux hautes fréquences, mais il ne s'agit pas d'un couplage conductif. L'ensemble selon l'invention garantit un dégivrage de la vitre sur toute la zone de l'essuie-glace sans influence défavorable de la structure conductrice d'antenne (7).

Claims (9)

  1. Agencement d'antenne à plusieurs bandes, en particulier pour une vitre de véhicule, avec les éléments suivants :
    - un champ de conducteurs chauffants (1, 2) avec des évidements latéraux (5), en particulier sur ou dans une vitre de véhicule,
    - une structure de conducteurs d'antenne (7) à l'extérieur du champ de conducteurs chauffants (1, 2), laquelle est agencée sensiblement dans les évidements latéraux (5) du champ de conducteurs chauffants,
    - dans lequel le champ de conducteurs chauffants (1, 2) est constitué par au moins deux segments assemblés l'un à l'autre (1, 2), qui sont agencés de telle façon que le champ de conducteurs chauffants (1, 2) recouvre sensiblement la totalité de la zone d'essuyage d'une vitre de véhicule, et
    - le premier segment (1) remplit la vitre de véhicule sur la totalité de sa largeur et le second segment (2) s'étend seulement dans une zone partielle de la largeur de la vitre de véhicule qui est parcourue par l'extrémité libre des balais d'essuie-glaces
    caractérisé par les caractéristiques suivantes :
    - la structure de conducteurs d'antenne (7) est appropriée pour au moins deux bandes de réception,
    - pour l'une desdites au moins deux bandes de réception il est prévu un couplage à faible résistance sous des hautes fréquences mais non galvanique de la structure de conducteurs d'antenne (7) avec le champ de conducteurs chauffants (1, 2), et
    - la largeur de piste conductrice des conducteurs chauffants d'un second segment (2) desdits au moins deux segments (1,2) assemblés l'un à l'autre est, par rapport à la largeur de piste conductrice des conducteurs chauffants d'un premier segment (1) desdits au moins deux segments assemblés l'un à l'autre, d'autant plus faible qu'un dégivrage sensiblement régulier de la vitre de véhicule est assuré.
  2. Agencement d'antenne selon la revendication 1, caractérisé en ce que la structure de conducteurs d'antenne (7) pour lesdites au moins deux bandes de réception, est remplie sensiblement dans la zone partielle/l'évidement latéral (5) de la largeur de la vitre de véhicule qui n'est pas remplie par le second segment (2).
  3. Agencement d'antenne selon la revendication 1 ou 2, caractérisé en ce que la structure de conducteurs d'antenne (7) est conçue de telle façon qu'elle présente un comportement résonnant dans la bande de réception des ondes ultracourtes.
  4. Agencement d'antenne selon l'une des revendications 1 à 3, caractérisé en ce que la structure de conducteurs d'antenne (7) est choisie, pour ce qui concerne sa longueur de conducteur efficace, de telle façon qu'il existe une performance de réception suffisante dans la bande en modulation d'amplitude.
  5. Agencement d'antenne selon l'une des revendications 1 à 4, caractérisé en ce que la structure de conducteurs d'antenne (7) est constituée de conducteurs individuels menés parallèlement les uns aux autres, qui sont réunis au moins à un emplacement pour donner un point de raccordement d'antenne (9), et l'un de ces conducteurs individuels est couplé de manière capacitive avec au moins un conducteur chauffants du champ de conducteurs chauffants (1, 2), de sorte que la totalité du champ de conducteurs chauffants est disponible à titre de surface d'antenne efficace pour une bande de réception, de préférence pour la bande des ondes ultracourtes.
  6. Agencement d'antenne selon l'une des revendications 1 à 5, caractérisé en ce qu'il est prévu au moins une autre structure de conducteurs d'antenne (71) pour une autre bande de réception et/ou pour le fonctionnement en diversité pour une bande de réception.
  7. Agencement d'antenne selon la revendication 6, caractérisé en ce que l'autre structure de conducteurs d'antenne (71) est agencée de manière séparée par le second segment (2) à l'opposé de la structure de conducteurs d'antenne (7).
  8. Agencement d'antenne selon la revendication 6 ou 7, caractérisé en ce que l'autre structure de conducteurs d'antenne (71) est reliée à la structure de conducteurs d'antenne (7) par au moins un conducteur (8), et celui-ci s'étend en particulier au-dessus de l'extrémité libre du second segment (2).
  9. Agencement d'antenne selon la revendication 6 ou 7, caractérisé en ce que l'autre structure d'antenne (71) est découplée de la structure d'antenne (7) sur le plan galvanique.
EP06777925A 2005-08-24 2006-07-24 Ensemble antenne a plusieurs zones Active EP1920495B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005039914A DE102005039914A1 (de) 2005-08-24 2005-08-24 Mehrbereichs-Antennenanordnung
PCT/EP2006/064568 WO2007023054A1 (fr) 2005-08-24 2006-07-24 Ensemble antenne a plusieurs zones

Publications (2)

Publication Number Publication Date
EP1920495A1 EP1920495A1 (fr) 2008-05-14
EP1920495B1 true EP1920495B1 (fr) 2011-09-14

Family

ID=36972923

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06777925A Active EP1920495B1 (fr) 2005-08-24 2006-07-24 Ensemble antenne a plusieurs zones

Country Status (7)

Country Link
US (1) US7880679B2 (fr)
EP (1) EP1920495B1 (fr)
CN (1) CN101248553B (fr)
BR (1) BRPI0614876B1 (fr)
DE (1) DE102005039914A1 (fr)
RU (1) RU2008110936A (fr)
WO (1) WO2007023054A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007028755A1 (de) * 2007-06-22 2008-12-24 Bayerische Motoren Werke Aktiengesellschaft Kraftfahrzeug
DE102007057714A1 (de) * 2007-11-30 2009-06-04 Robert Bosch Gmbh Antennenanordnung sowie Verfahren
CA2710499C (fr) * 2008-10-02 2013-05-14 Central Glass Company, Limited Antenne pour glace de vehicule
DE202009000782U1 (de) 2009-01-20 2009-06-04 Delphi Delco Electronics Europe Gmbh Fahrzeug-Fensterscheibe mit elektrisch leitenden Strukturen
DE102009030344A1 (de) 2009-06-25 2010-12-30 Bayerische Motoren Werke Aktiengesellschaft Fahrzeugscheibe mit mindestens einem Heizleiter und mindestens einer Antenne
DE202009018455U1 (de) 2009-08-14 2011-12-06 Saint-Gobain Sekurit Deutschland Gmbh & Co. Kg Scheibe mit elektrisch leitfähigen Strukturen
CN107534208A (zh) * 2015-04-28 2018-01-02 日本板硝子株式会社 玻璃天线
JP2018101956A (ja) * 2016-12-21 2018-06-28 トヨタ自動車株式会社 車両用アンテナシステム
EP3361563B1 (fr) * 2017-02-14 2020-10-07 AGC Inc. Antenne de vitre et vitre de fenêtre pour véhicule
JP7259747B2 (ja) * 2017-07-18 2023-04-18 Ａｇｃ株式会社 車両用窓ガラス

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JPS50102492A (fr) * 1974-01-14 1975-08-13
DE3618452C2 (de) 1986-06-02 1997-04-10 Lindenmeier Heinz Diversity-Antennenanordnung für den Empfang frequenzmodulierter Signale in der Heckscheibe eines Kraftfahrzeugs mit einem darin befindlichen Heizfeld
DE3910031A1 (de) 1988-03-31 1989-10-19 Nippon Sheet Glass Co Ltd Fahrzeug-scheibenantenne
EP0559196B1 (fr) * 1992-03-06 1997-08-20 Central Glass Company, Limited Antenne de vitre pour voiture automobile
JPH06177625A (ja) * 1992-10-06 1994-06-24 Central Glass Co Ltd 自動車用ガラスアンテナ
DE4237818C3 (de) * 1992-11-10 2000-12-14 Sekurit Saint Gobain Deutsch Scheibenantenne für Kraftfahrzeuge
DE69427506T2 (de) * 1993-08-20 2001-10-04 Asahi Glass Co Ltd Scheibenantenne für ein Automobil
TW423180B (en) * 1997-01-31 2001-02-21 Terajima Fumitaka Glass antenna device for an automobile
US5933119A (en) * 1997-02-20 1999-08-03 Central Glass Company Limited Glass antenna system for vehicles
DE19726420A1 (de) * 1997-06-23 1998-12-24 Fuba Automotive Gmbh Fensterantennenstruktur für Kraftfahrzeuge
US6215450B1 (en) * 1998-06-03 2001-04-10 Nippon Sheet Glass Co., Ltd. Glass window antenna system for motor vehicles
GB9813129D0 (en) 1998-06-17 1998-08-19 Harada Ind Europ Limited Multiband vehicle screen antenna
AU2002219552A1 (en) 2001-01-04 2002-07-24 Nippon Sheet Glass Co., Ltd. Glass antenna and glass antenna system using the same
JP3974087B2 (ja) * 2003-06-30 2007-09-12 セントラル硝子株式会社 車両用ガラスアンテナ
DE10359223A1 (de) * 2003-12-17 2005-07-21 Robert Bosch Gmbh Fahrzeugscheibenantenne

Also Published As

Publication number Publication date
US20090015492A1 (en) 2009-01-15
RU2008110936A (ru) 2009-09-27
BRPI0614876B1 (pt) 2018-12-11
CN101248553A (zh) 2008-08-20
WO2007023054A1 (fr) 2007-03-01
CN101248553B (zh) 2013-05-29
BRPI0614876A2 (pt) 2011-04-19
EP1920495A1 (fr) 2008-05-14
US7880679B2 (en) 2011-02-01
DE102005039914A1 (de) 2007-03-08
BRPI0614876A8 (pt) 2018-05-22

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