EP1683230B1 - Antenne de vitre de vehicule - Google Patents

Antenne de vitre de vehicule Download PDF

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Publication number
EP1683230B1
EP1683230B1 EP04766800A EP04766800A EP1683230B1 EP 1683230 B1 EP1683230 B1 EP 1683230B1 EP 04766800 A EP04766800 A EP 04766800A EP 04766800 A EP04766800 A EP 04766800A EP 1683230 B1 EP1683230 B1 EP 1683230B1
Authority
EP
European Patent Office
Prior art keywords
decoupling
matching circuit
conductor
vehicle screen
screen
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.)
Ceased
Application number
EP04766800A
Other languages
German (de)
English (en)
Other versions
EP1683230A1 (fr
Inventor
Markus Hoffmeister
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1683230A1 publication Critical patent/EP1683230A1/fr
Application granted granted Critical
Publication of EP1683230B1 publication Critical patent/EP1683230B1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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

Definitions

  • the invention relates to a vehicle window pane antenna according to the preamble of claim 1.
  • a vehicle window pane antenna is known from EP 1315232A , There parallel heating circuits with AM and FM antenna structures are provided on vehicle windows.
  • each of the structures has a matching and decoupling circuit.
  • the EP 0 751580 A2 and the US 6,307,516 B1 show AM and FM antenna structures with separate heating circuits.
  • the FM structures can be used as a feed line to the AM structure. Since the second decoupling and matching circuit is arranged downstream of the first decoupling and matching circuit, the voltage supply of the heating circuit of the AM circuit does not directly access the voltage supply of the vehicle, but the voltage supply of the heating conductors for the FM circuit, which is the first decoupling Since the first decoupling and matching circuit already suppresses most of the interference present on the voltage supply, the circuit complexity, in particular the filter effort, for the second decoupling and matching circuit can be kept to a minimum.
  • the second decoupling and matching circuit When the second decoupling and matching circuit is disposed in a subcircuit of the first decoupling and matching circuit, it is supplied with a smaller dc current than the first decoupling and matching circuit.
  • the decoupling means (blocking circuits) of the second decoupling and matching circuit can be designed for a lower direct current.
  • S denotes a vehicle window, which is preferably the rear window of a motor vehicle, which is inserted into the body K of the vehicle.
  • a vehicle window S is a first conductor arrangement L FM of parallel heating conductors H FM , which occupy about 2/3 of the height of the vehicle window.
  • the heating conductors are connected at their ends by connecting conductors V1 and V2.
  • Connections A1, A2 of a first decoupling and matching circuit EA1 whose further terminals A3 and A4 are connected to the poles of a DC power source B, which is preferably a motor vehicle battery, are connected to the connecting conductors V1 and V2.
  • a switch SW is provided between the DC power source B and the terminal A4.
  • An output 01 of the first decoupling and matching circuit EA1 leads to a terminal R FM for FM signals.
  • the first conductor arrangement L FM one of the first conductor arrangement spatially and electrically separate second conductor arrangement L AM , which consists in the embodiment of two interconnected at one end, forming a heating loop heating conductors H AM .
  • the two free ends F of the second conductor arrangement L AM on one side of the rear window S are connected to terminals A5 and A6 of a second decoupling and matching circuit EA2.
  • Two further connections A7 and A8 of the second decoupling and matching circuit EA2 are connected to the supply lines of the first decoupling and matching circuit EA1 to the connecting conductors V1 and V2.
  • An output 02 of the second decoupling and matching circuit leads to a terminal A AM for AM signals.
  • the decoupling and matching circuits EA1 and EA2 assigned to the conductor arrangements L FM and L AM have a structure known to the person skilled in the art; see. eg US Pat. No. 4,439,771 , If the switch SW is closed, the first conductor arrangement L FM receives its heating current I FM from the current source B via the first decoupling and matching circuit EA1 and the second conductor arrangement L AM receives its heating current I AM via the first decoupling and matching circuit EA1 in a subcircuit same located second decoupling and matching EA2.
  • the direct current I AM for the second conductor arrangement L AM is considerably smaller than the heating current I FM for the first conductor arrangement L FM due to the fact that the second decoupling and matching circuit EA1 is located in the branch circuit of the first decoupling and matching circuit EA2.
  • the decoupling means of the second decoupling and matching circuit EA2 can be designed for the lower heating current.
  • the decoupling effect in a known manner that the RF voltages induced in the conductor assemblies are not short-circuited via the DC power source B.
  • the signals of the FM and the AM area are available for forwarding, for example to a car radio.
  • the heating conductors H AM H FM of the two conductor arrangements L FM , L AM are connected to the ground potential at one end, preferably on the side facing the connecting conductor V2.
  • FIG. 2 shows an alternative embodiment of the vehicle disk antenna with shared second decoupling and matching circuit.
  • the two subnetworks / filter structures in particular blocking circuits, are designated EA21 and EA22.
  • the second conductor arrangement L AM here consists of one or more unfolded conductor tracks parallel to the conductor tracks L FM .
  • Their connection ends F1, F2 on mutually opposite sides of the rear window S lead to a respective first connection 5 or 6 of one of the subnetworks / filter structures EA21 and EA22.
  • Their second terminals A9 and A10 lead to the connecting conductors V1 and V2. Only one of the two filter structures, in this case EA22 with output terminal 02 and connection point A AM, is necessary for the coupling of the AM signal.

Landscapes

  • Details Of Aerials (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)

Claims (11)

  1. Antenne de vitre de véhicule comportant un premier dispositif de conducteurs (LFM) prévu dans ou sur la vitre pour la réception en modulation de fréquence MF, avec un premier conducteur de chauffage alimenté par un circuit de découplage et d'adaptation (EA1) ainsi qu'un second dispositif de conducteurs (LAM) également dans ou sur la vitre pour la réception en modulation d'amplitude (MA), séparé du premier dispositif de conducteurs (LFM),
    un second circuit de découplage et d'adaptation (EA2) étant prévu pour alimenter les conducteurs du second dispositif de conducteurs (LAM),
    l'alimentation en courant continu du premier et du second dispositif de conducteurs (LMF, LAM), passant par un premier et par un second circuit de découplage et d'adaptation (EA1, EA2),
    caractérisée en ce que
    le second circuit de découplage et d'adaptation (EA2) est en aval du premier circuit de découplage et d'adaptation (EA1),
    le second circuit de découplage et d'adaptation (EA2) étant placé dans un circuit de courant auxiliaire du premier circuit de découplage et d'adaptation (EA1) pour être ainsi alimenté avec un courant continu plus faible que le courant total de chauffage, par rapport au premier circuit de découplage et d'adaptation (EA1).
  2. Antenne de vitre de véhicule selon la revendication 1,
    caractérisée en ce que
    le second circuit de découplage et d'adaptation (EA2) est divisé en deux parties (EA21, EA22).
  3. Antenne de vitre de véhicule selon la revendication 1 ou 2,
    caractérisée en ce que
    les conducteurs de chauffage (HAM) du second dispositif de conducteurs (LAM) forment une boucle de conducteurs de chauffage ou plusieurs boucles branchées en parallèle, de conducteurs de chauffage.
  4. Antenne de vitre de véhicule selon l'une des revendications 1 à 3,
    caractérisée en ce que
    le premier dispositif de conducteurs de chauffage (LFM) occupe au moins 2/3 de la hauteur de la vitre (S) du véhicule et le second dispositif de conducteurs (LAM), installé parallèlement au premier dispositif de conducteurs, occupe le restant de la hauteur de la vitre du véhicule.
  5. Antenne de vitre de véhicule selon l'une des revendications 1 à 4,
    caractérisée en ce que
    les conducteurs de chauffage (HFM, HAM) du premier et du second dispositif de conducteurs (LFM, LAM) sont reliés d'un côté au potentiel de masse.
  6. Antenne de vitre de véhicule selon l'une des revendications 2 à 5,
    caractérisée en ce que
    le second circuit de découplage et d'adaptation (EA2) est réalisé par deux structures de filtre (EA21, EA22) de part et d'autre d'une vitre de véhicule, en particulier d'une vitre arrière (S).
  7. Antenne de vitre de véhicule selon l'une des revendications 2 à 5,
    caractérisée en ce que
    le second circuit de découplage et d'adaptation (EA2) est réalisé par deux structures de filtre (EA21, EA22) sur une vitre du véhicule, notamment la vitre arrière (S).
  8. Antenne de vitre de véhicule selon l'une des revendications 1 à 7,
    caractérisée en ce que
    le second dispositif de conducteurs (LAM) est formé d'une boucle de conducteurs dont les extrémités de branchement (F) se trouvent sur un côté de la vitre du véhicule, notamment de la vitre arrière (S).
  9. Antenne de vitre de véhicule selon l'une des revendications 1 à 5,
    caractérisée en ce que
    le second dispositif de conducteurs (LAM) est formé d'un chemin conducteur non plié dont les extrémités de branchement sont prévues sur les côtés en regard de la vitre de véhicule, notamment de la vitre arrière (S).
  10. Antenne de vitre de véhicule selon les revendications 6 ou 7,
    caractérisée en ce que
    les extrémités de branchement du chemin conducteur non plié sont reliées chacune à l'une des deux structures de filtre (EA21, EA22).
  11. Antenne de vitre de véhicule selon l'une des revendications 6, 7 ou 10,
    caractérisée en ce qu'
    il n'est prévu qu'une des deux structures de filtre (EA21, EA22) pour découpler le signal d'antenne de modulation d'amplitude MA.
EP04766800A 2003-10-30 2004-09-15 Antenne de vitre de vehicule Ceased EP1683230B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10350780A DE10350780A1 (de) 2003-10-30 2003-10-30 Fahrzeugscheibenantenne
PCT/EP2004/052188 WO2005043672A1 (fr) 2003-10-30 2004-09-15 Antenne de vitre de vehicule

Publications (2)

Publication Number Publication Date
EP1683230A1 EP1683230A1 (fr) 2006-07-26
EP1683230B1 true EP1683230B1 (fr) 2008-01-23

Family

ID=34529944

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04766800A Ceased EP1683230B1 (fr) 2003-10-30 2004-09-15 Antenne de vitre de vehicule

Country Status (6)

Country Link
US (1) US7616162B2 (fr)
EP (1) EP1683230B1 (fr)
JP (1) JP4146470B2 (fr)
BR (1) BRPI0408368B1 (fr)
DE (2) DE10350780A1 (fr)
WO (1) WO2005043672A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008011131A1 (de) * 2008-02-26 2009-09-10 Bayerische Motoren Werke Aktiengesellschaft Antennenanordnung für ein Kraftfahrzeug
KR101962499B1 (ko) 2011-10-28 2019-03-26 코닝 인코포레이티드 적외선 반사도를 갖는 유리 제품 및 이의 제조방법
KR20160048143A (ko) 2013-08-26 2016-05-03 페더럴-모걸 파워트레인, 인코포레이티드 랩핑가능한 멀티 레이어 히트 실드
CN107531562B (zh) 2015-04-30 2021-05-28 康宁股份有限公司 具有离散的金属银层的导电制品及其制造方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3904490A1 (de) * 1989-02-15 1990-08-16 Bosch Gmbh Robert Fahrzeug-scheibenantenne
JPH0756495Y2 (ja) * 1990-01-16 1995-12-25 日本板硝子株式会社 自動車窓用アンテナ装置
EP0639868B1 (fr) * 1993-08-20 2001-06-20 Asahi Glass Company Ltd. Antenne de vitre pour une voiture automobile
JPH0918222A (ja) * 1995-06-28 1997-01-17 Nippon Sheet Glass Co Ltd 窓ガラスアンテナ装置
TW431022B (en) * 1998-09-03 2001-04-21 Asahi Glass Co Ltd Glass antenna device for an automobile
JP2000151248A (ja) * 1998-11-16 2000-05-30 Nippon Sheet Glass Co Ltd 車両用ガラスアンテナ装置
JP2000261228A (ja) * 1999-03-08 2000-09-22 Harada Ind Co Ltd 車両用窓ガラスアンテナ装置
US6307516B1 (en) * 2000-05-01 2001-10-23 Delphi Technologies, Inc. Antenna for automobile radio
ITRE20010111A1 (it) * 2001-11-26 2003-05-26 Zendar Spa Antenna per la ricezione di trasmissioni ad onde medie ed in banda metrica utilizzante come struttura radiante lo sbrinatore del lunotto ter

Also Published As

Publication number Publication date
BRPI0408368A (pt) 2006-03-21
EP1683230A1 (fr) 2006-07-26
DE10350780A1 (de) 2005-06-02
JP4146470B2 (ja) 2008-09-10
JP2006514509A (ja) 2006-04-27
US20090015493A1 (en) 2009-01-15
WO2005043672A1 (fr) 2005-05-12
US7616162B2 (en) 2009-11-10
BRPI0408368B1 (pt) 2018-07-03
DE502004006072D1 (de) 2008-03-13

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