EP1698019A1 - Antenne a disque pour vehicule - Google Patents

Antenne a disque pour vehicule

Info

Publication number
EP1698019A1
EP1698019A1 EP04820446A EP04820446A EP1698019A1 EP 1698019 A1 EP1698019 A1 EP 1698019A1 EP 04820446 A EP04820446 A EP 04820446A EP 04820446 A EP04820446 A EP 04820446A EP 1698019 A1 EP1698019 A1 EP 1698019A1
Authority
EP
European Patent Office
Prior art keywords
heating
antenna
conductor
reception
vehicle window
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.)
Granted
Application number
EP04820446A
Other languages
German (de)
English (en)
Other versions
EP1698019B1 (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
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 EP1698019A1 publication Critical patent/EP1698019A1/fr
Application granted granted Critical
Publication of EP1698019B1 publication Critical patent/EP1698019B1/fr
Ceased legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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 is based on a vehicle window antenna with a heating field, which is provided both for VHF reception and for LMK reception.
  • the heating field of the window is often used as the antenna structure.
  • the heating field for VHF and TV reception is provided in US 6,498,588 B1 and W099 / 66587.
  • a conductor loop is also provided on the upper edge of the pane, which is not connected to the heating field.
  • a major disadvantage of such an arrangement is the need for an area, e.g. in the upper area of the window pane, which cannot be heated due to the lack of a heating conductor and therefore cannot be defrosted.
  • the resulting heatable area is inadmissibly small.
  • the heat conductors run essentially horizontally and essentially parallel to the metallic boundaries of the disk.
  • the electrical system disturbances transmitted from the heating current to the heating conductors serving as antennas must be suppressed by modules with high-frequency high-impedance behavior if the antenna connection point is galvanically connected to the heating field.
  • these are, for example, rod chokes that are integrated in the line parts supplying the heating current and are usually located near the heating current connections of the heating field.
  • LMK reception this is a current-compensated toroidal choke (AM blocking circuit), which is also arranged in the heating current supply.
  • AM blocking circuit is a very cost-intensive assembly, whose weight, approx.
  • the reception of LMK and various VHF signals with line structures is realized in one or more window panes, which are usually in the immediate vicinity but are spatially separated.
  • a major disadvantage of such an arrangement is the need for at least two, usually fixed window panes, which results in an increased effort in the manufacture of the panes, in the electronic design of connected, usually active circuit components and in the assembly of corresponding circuit carriers.
  • Antenna arrangements are also known which use antennas for LMK and VHF
  • the measures according to claim 1 ie with a heating conductor field, which is provided both for VHF and possibly TV reception and for LMK reception with a single disc, at least one decoupling element being provided for at least LMK reception, which is not galvanically connected to the heating field in terms of radio frequency and the decoupling element is arranged in the heating conductor field, in particular between two adjacent heating conductors, it is possible to receive LMK and, in particular, diversified VHF / TV signals with a single window pane, without having to rely on a complete one The entire pane is not heated, especially in the area not covered by black printing must become.
  • the necessary filter elements for the LMK Rundfiink can be dispensed with or the filter elements can be assembled with significantly less effort than with previous systems. This means that there is no need for a separate examination of the mechanical load on this assembly, and the quality of the system over the life of the vehicle is inexpensive
  • Filter assemblies can be guaranteed.
  • the basic noise of the antenna for the LMK radio reception can be significantly reduced if filter elements for the LMK range are retained.
  • the line structure is applied to a window pane by conventional methods, it being irrelevant in the sense of the invention whether it is a pane safety glass or laminated safety glass.
  • Said window pane is surrounded by a metallic frame and is usually designed as a rear window of a motor vehicle.
  • the arrangement described can also be applied to any other disc, e.g. for ships.
  • the particular advantage of the invention lies in the fact that either no special filter elements for the decoupling of the LMK antenna function from the vehicle electrical system interference in the form of a current-compensated toroidal choke (high-frequency high-impedance component) are necessary, or that
  • an outcoupling element preferably an additional conductor or an additional conductor loop
  • an additional conductor or an additional conductor loop is inserted between two heating conductors in parallel, usually between the top two, because the technical performance of the receiving system is optimal, so that no galvanic Connection between this conductor and the heating field exists. Due to the non-galvanic connection, electrical system disturbances have little influence on the noise floor of the antenna.
  • the heating field and additional conductor are so low for LMK frequencies that on-board electrical system faults in the heating current do not or only crosstalk.
  • the capacitive coupling for FM and TV frequencies is, however, sufficiently high that the antenna signals are received with the entire heating conductor structure. Filter elements are necessary here.
  • the antenna function is due to the high capacitive Coupling comparable to an arrangement in which the antenna connection point is electrically connected to the heating field.
  • the entire pane can be heated since no structures outside the heating conductor field are necessary.
  • FIG. 1 shows an integrated antenna system for LMK, VHF and possibly TV reception according to the invention
  • FIG. 2 shows a further exemplary embodiment with a further VHF / TV antenna signal coupling
  • FIG. 3 shows a comparison of the reception pcgcl in the LMK frequency range.
  • Figure 1 shows a disc antenna consisting of parallel to each other
  • the heating conductor field formed in this way is supplied with heating current in each case via an FM / TV choke 5 in the supply lines (Ub heater).
  • an AM blocking circuit 13 with more or less complex filter effort is provided in the supply lines for the heating current or not.
  • Antenna connection point 1 for VHF / TV and LMK signals is galvanically connected to a coupling element 6 in the heating conductor field but not to the heating conductor field.
  • the decoupling element 6 can be designed as a straight conductor, as an open conductor loop as shown in FIG. 1, or as a closed conductor loop or from combinations of the latter elements. A structure that is as long as possible is advantageous.
  • the Coupling element 6 is arranged in particular between two adjacent heating conductors 3 and runs parallel (leg of the open conductor loop) to the entire length of two heating conductors 3. The distance of the coupling element 6 or its conductor pieces parallel to the heating conductors 3 should be as small as possible, so that a capacitive Coupling for FM / TV frequencies is ensured.
  • connection of the active antenna module 7 is advantageously located in the immediate vicinity of the antenna connection point 1 in the upper right corner of the heating conductor field on the metallic frame 8 surrounding the window pane (shown in dashed lines).
  • the heat conductor structure of the pane is thus formed, e.g. through additional vertical
  • Crossing lines 10 which are galvanically connected to the parallel heating conductors 3 at each crossing point and are located on the equipotential points formed by the voltage distribution, so that a resonant structure is created at the antenna connection point 1 for VHF frequencies.
  • the decoupled antenna signals are amplified separately in the electronic assembly 7 (AM, FM, TV1) and, if necessary, filtered and fed to the TV tuner 11 or radio 12.
  • FIG. 2 shows a further embodiment in which a further VHF / TV
  • Antenna signal decoupling is formed from the antenna connection point 2, which is galvanically connected to the heating field on the opposite side, and a closely adjacent ground connection. This then forms a two-antenna system.
  • Other antennas can also be formed in the same way from the heating field elsewhere, e.g. two additional ones in order to generate a four-antenna system.
  • Another FM or TV area can be covered, a second FM receiver can be operated, or a diversity effect can be exploited by different reception signals at the two antenna connection points 1 and 2, as e.g. can occur under unfavorable reception conditions in mobile use.
  • the decisive factor is the capacity of the antenna conductor compared to the vehicle mass.
  • a second electronic module is connected with a certain input capacity, the total capacity of the arrangement based on the antenna connection 1 increases.
  • part of the received LMK signal is diverted to ground via the second module and thus deteriorates the overall reception. This fact is prevented in the antenna arrangement according to the invention.
  • Figure 1 shows the best results achieved.
  • the reception level is slightly lower, but a lower background noise is generated by the heating current.
  • the reception performance for FM / TV reception is comparable to known arrangements.

Landscapes

  • Details Of Aerials (AREA)

Abstract

L'invention concerne une antenne à disque pour véhicule, dans laquelle le champ conducteur de chaleur (3, 4) est utilisé aussi bien pour la réception d'ondes ultracourtes, que pour la réception d'ondes longues, moyennes et courtes. Il est prévu au moins un élément de découplage (6) pour la réception d'ondes longues, moyennes et courtes, qui est raccordé en haute fréquence, mais néanmoins pas par voie galvanique au champ conducteur de haleur (3, 4). L'élément de découplage (6) est disposé dans le champ conducteur de chaleur, en particulier entre deux conducteurs de chaleur (3) adjacents.
EP04820446.5A 2003-12-17 2004-11-05 Antenne a disque pour vehicule Ceased EP1698019B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10359223A DE10359223A1 (de) 2003-12-17 2003-12-17 Fahrzeugscheibenantenne
PCT/EP2004/052836 WO2005060044A1 (fr) 2003-12-17 2004-11-05 Antenne a disque pour vehicule

Publications (2)

Publication Number Publication Date
EP1698019A1 true EP1698019A1 (fr) 2006-09-06
EP1698019B1 EP1698019B1 (fr) 2015-07-29

Family

ID=34683464

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04820446.5A Ceased EP1698019B1 (fr) 2003-12-17 2004-11-05 Antenne a disque pour vehicule

Country Status (6)

Country Link
US (1) US7719475B2 (fr)
EP (1) EP1698019B1 (fr)
JP (1) JP2006524928A (fr)
BR (1) BRPI0413273B1 (fr)
DE (1) DE10359223A1 (fr)
WO (1) WO2005060044A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10359223A1 (de) 2003-12-17 2005-07-21 Robert Bosch Gmbh Fahrzeugscheibenantenne
DE102005039914A1 (de) * 2005-08-24 2007-03-08 Robert Bosch Gmbh Mehrbereichs-Antennenanordnung
DE102008011131A1 (de) 2008-02-26 2009-09-10 Bayerische Motoren Werke Aktiengesellschaft Antennenanordnung für ein Kraftfahrzeug
EP2256856B1 (fr) * 2009-05-28 2018-10-24 Saint-Gobain Glass France Dispositif plat et transparent pour la réception et/ou l'émission d'un rayonnement électromagnétique doté d'au moins une fonction supplémentaire, son procédé de fabrication et d'utilisation
WO2013063207A1 (fr) 2011-10-28 2013-05-02 Corning Incorporated Articles en verre à réflectivité infrarouge et leurs procédés de fabrication
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
JP2019016867A (ja) * 2017-07-04 2019-01-31 Ａｇｃ株式会社 車両用窓ガラス
CN110914085A (zh) * 2017-07-18 2020-03-24 Ａｇｃ株式会社 车辆用窗玻璃

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US4954797A (en) * 1987-09-29 1990-09-04 Central Glass Company, Limited Vehicle window glass antenna coupled with defogging heater
DE3910031A1 (de) 1988-03-31 1989-10-19 Nippon Sheet Glass Co Ltd Fahrzeug-scheibenantenne
US5113195A (en) * 1988-10-31 1992-05-12 Nippon Sheet Glass Co., Ltd. Glass window antenna for use in a motor vehicle
DE3904490A1 (de) 1989-02-15 1990-08-16 Bosch Gmbh Robert Fahrzeug-scheibenantenne
JP2515158B2 (ja) * 1989-08-03 1996-07-10 日本板硝子株式会社 自動車用窓ガラスアンテナ
DE4207638C2 (de) 1992-03-11 1994-01-27 Ver Glaswerke Gmbh Heizbare Verbundglasscheibe mit in der thermoplastischen Zwischenschicht angeordneten Widerstandsdrähten
JPH0794926A (ja) 1993-09-24 1995-04-07 Central Glass Co Ltd 車両用ガラスアンテナ
US6130645A (en) * 1998-01-14 2000-10-10 Fuba Automotive Gmbh & Co. Kg Combination wide band antenna and heating element on a window of a vehicle
GB9813129D0 (en) 1998-06-17 1998-08-19 Harada Ind Europ Limited Multiband vehicle screen antenna
JP2000156606A (ja) * 1998-11-19 2000-06-06 Harada Ind Co Ltd Ｉｔｓ適合自動車用アンテナ装置
JP3612254B2 (ja) 1999-11-24 2005-01-19 日本板硝子株式会社 ガラスアンテナ
US6239758B1 (en) * 2000-01-24 2001-05-29 Receptec L.L.C. Vehicle window antenna system
JP2002084119A (ja) * 2000-09-11 2002-03-22 Asahi Glass Co Ltd 自動車用ガラスアンテナ
JP2002118406A (ja) 2000-10-05 2002-04-19 Asahi Glass Co Ltd 自動車用ガラスアンテナ
DE10137019C2 (de) * 2001-07-30 2003-10-16 Daimler Chrysler Ag Antennenanordnung für ein Fahrzeug
JP2003087027A (ja) 2001-09-10 2003-03-20 Mazda Motor Corp 車両用アンテナ装置
DE10146439C1 (de) * 2001-09-20 2002-11-28 Pilkington Automotive D Gmbh Fahrzeugantennenscheibe
FR2844702B1 (fr) 2002-09-24 2004-12-17 Numedic Dispositif de solidarisation d'une piece sur un support et procede de pose d'un tel dispositif
DE10323557B3 (de) * 2003-05-26 2004-07-08 Hirschmann Electronics Gmbh & Co. Kg Fahrzeugantenne
DE10359223A1 (de) 2003-12-17 2005-07-21 Robert Bosch Gmbh Fahrzeugscheibenantenne

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005060044A1 *

Also Published As

Publication number Publication date
DE10359223A1 (de) 2005-07-21
BRPI0413273B1 (pt) 2018-12-11
US7719475B2 (en) 2010-05-18
US20080055169A1 (en) 2008-03-06
BRPI0413273A (pt) 2006-10-10
WO2005060044A1 (fr) 2005-06-30
BRPI0413273A8 (pt) 2018-05-22
EP1698019B1 (fr) 2015-07-29
JP2006524928A (ja) 2006-11-02

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