EP1920495A1 - Ensemble antenne a plusieurs zones - Google Patents

Ensemble antenne a plusieurs zones

Info

Publication number
EP1920495A1
EP1920495A1 EP06777925A EP06777925A EP1920495A1 EP 1920495 A1 EP1920495 A1 EP 1920495A1 EP 06777925 A EP06777925 A EP 06777925A EP 06777925 A EP06777925 A EP 06777925A EP 1920495 A1 EP1920495 A1 EP 1920495A1
Authority
EP
European Patent Office
Prior art keywords
antenna
arrangement according
conductor
antenna arrangement
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.)
Granted
Application number
EP06777925A
Other languages
German (de)
English (en)
Other versions
EP1920495B1 (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.)
Aumovio 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 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

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
    • 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 Al.
  • a similar antenna arrangement is shown in WO 02/056412 A2.
  • WO 99/66587 shows an antenna arrangement for diversity operation.
  • the Schuleiterfeld 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.
  • Bordordentkoppelnde filter elements for the FM / TV and LMK reception due to the galvanic connections between antenna connection point and heating conductor necessary EP 0269723 Bl.
  • 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.
  • these are, for example, 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 For the LMK reception, this is a current-compensated toroidal core choke (AM blocking circuit), which is likewise arranged in the heating current supply.
  • AM-blocking circuit is a very costly assembly whose weight (about 200 g) to high mechanical loads both the circuit board and the
  • Screwing points and thus in the context of quality assurance is considered to be extremely critical.
  • the vibrations occurring under normal driving conditions cause solder joints to be heavily stressed.
  • 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 e.g. Windscreens 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.
  • an antenna conductor structure for at least two receiving areas outside the Schupenfeldes 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 heating conductor field, which is effective for one of the at least two receiving areas, is the reception of LMK and diversified FM / TV Signals in a single window pane feasible, the area to be heated is as large as possible.
  • 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 multi-range antenna structure according to the invention has the particular advantage that the area which is swept over by a rear window wiper is completely or at least substantially heated. 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 uniform condensation of the disk is ensured via the conductor track width of the partial heating conductor, ie via the resulting ohmic resistance of the heating conductor.
  • FIG. 1 shows a multi-range antenna arrangement according to the invention
  • FIG. 2 shows the heating conductor structure for uniform heating
  • FIG. 3 shows a multi-range antenna arrangement with two antenna connection points
  • FIG. 4 shows a multi-range antenna arrangement with two antenna conductor structures which are galvanically separated from one another
  • FIG. 5 shows a multi-region antenna arrangement whose second antenna conductor structure is essentially formed by the heating conductor field
  • FIG. 6 shows a multi-range antenna arrangement with FM diversity.
  • Figure 1 shows a vehicle-glass antenna for multi-range reception, especially for LMK and FM reception with the concomitant use of Schuleiterfeldes.
  • the heating conductors 3 are arranged parallel to one another. They result in a first segment 1, which is the
  • the Schuiben Abtauung In the upper area, the Schuibenfeld on a second segment 2, which does not extend over the full width of the vehicle window, but only over that area, the from the free windscreen wiper end is swept over.
  • 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 Weg 7 without affecting the Scheiben Abtauung.
  • the antenna conductor structure 7 shown in Figure 1 consists of three parallel conductors in both the left and in the right recess 5.
  • the antenna conductor 8 at the top connects the antenna conductor structures
  • 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 j3 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 heating conductor field 1, the
  • the antenna conductor structure in FIG. 1 is designed in particular such 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 portion can be realized according to Figure 2 as follows.
  • the heating conductors are characterized by their resistance characterized.
  • a horizontal heating conductor of length Ll has an ohmic resistance Rl over the entire disk area.
  • the conductor width of the conductors L2 and L3 by a factor of 7/3 must be less than that of the conductor Ll, 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 exemplary embodiment, in which a second antenna structure 71 with a plurality of antenna conductors on the opposite left side with a
  • Antenna connection point 18 and a closely adjacent ground terminal 16 is formed.
  • TV reception is implemented by the connected electronic module 17. This is then a two-antenna system is formed to ensure diversified broadcasting and TV reception.
  • 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 exemplary embodiment, in which the second VHF antenna is formed from a conductor structure 71 which is not galvanically connected to the conductor structure 7 of the first antenna.
  • FIG. 5 shows an embodiment in which the second VHF antenna structure results from galvanic contacting 19 of the heating conductor field 1 and a closely adjacent ground connection 16.
  • 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.

Landscapes

  • 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).
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 true EP1920495A1 (fr) 2008-05-14
EP1920495B1 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
US8421691B2 (en) * 2008-10-02 2013-04-16 Central Glass Company, Limited Vehicular glass antenna
DE202009000782U1 (de) 2009-01-20 2009-06-04 Delphi Delco Electronics Europe Gmbh Fahrzeug-Fensterscheibe mit elektrisch leitenden Strukturen
DE102009030344B4 (de) 2009-06-25 2024-11-28 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
CN108448224B (zh) * 2017-02-14 2020-12-01 Ａｇｃ株式会社 玻璃天线及车辆用窗玻璃
CN110914085A (zh) * 2017-07-18 2020-03-24 Ａｇｃ株式会社 车辆用窗玻璃

Family Cites Families (15)

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Publication number Priority date Publication date Assignee Title
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
DE69313165T2 (de) * 1992-03-06 1997-12-18 Central Glass Co Ltd Scheibenantenne für Kraftfahrzeug
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
EP0639868B1 (fr) 1993-08-20 2001-06-20 Asahi Glass Company Ltd. Antenne de vitre pour une voiture automobile
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

Non-Patent Citations (1)

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Title
See references of WO2007023054A1 *

Also Published As

Publication number Publication date
CN101248553A (zh) 2008-08-20
BRPI0614876A2 (pt) 2011-04-19
US7880679B2 (en) 2011-02-01
US20090015492A1 (en) 2009-01-15
DE102005039914A1 (de) 2007-03-08
WO2007023054A1 (fr) 2007-03-01
BRPI0614876A8 (pt) 2018-05-22
CN101248553B (zh) 2013-05-29
BRPI0614876B1 (pt) 2018-12-11
EP1920495B1 (fr) 2011-09-14
RU2008110936A (ru) 2009-09-27

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