EP3966890B1 - Fahrzeugscheibe - Google Patents

Fahrzeugscheibe Download PDF

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Publication number
EP3966890B1
EP3966890B1 EP20719470.5A EP20719470A EP3966890B1 EP 3966890 B1 EP3966890 B1 EP 3966890B1 EP 20719470 A EP20719470 A EP 20719470A EP 3966890 B1 EP3966890 B1 EP 3966890B1
Authority
EP
European Patent Office
Prior art keywords
carrier
vehicle pane
film
region
vehicle
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
EP20719470.5A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3966890A1 (de
Inventor
Varun RAMESH KUMAR
Guillaume Francois
Thomas HOLTSTIEGE
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.)
Saint Gobain Glass France SAS
Compagnie de Saint Gobain SA
Original Assignee
Saint Gobain Glass France SAS
Compagnie de Saint Gobain SA
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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=66476395&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP3966890(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Saint Gobain Glass France SAS, Compagnie de Saint Gobain SA filed Critical Saint Gobain Glass France SAS
Publication of EP3966890A1 publication Critical patent/EP3966890A1/de
Application granted granted Critical
Publication of EP3966890B1 publication Critical patent/EP3966890B1/de
Active legal-status Critical Current
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P5/00—Coupling devices of the waveguide type
    • H01P5/02—Coupling devices of the waveguide type with invariable factor of coupling
    • H01P5/022—Transitions between lines of the same kind and shape, but with different dimensions
    • H01P5/028—Transitions between lines of the same kind and shape, but with different dimensions between strip lines
    • 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
    • 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
    • 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
    • H01Q1/3208—Adaptation for use in or on road or rail vehicles characterised by the application wherein the antenna is used

Definitions

  • Vehicles are increasingly being equipped with electrical components.
  • Navigation systems can be, for example, a satellite-supported navigation satellite system (GNSS).
  • GNSS satellite-supported navigation satellite system
  • Systems in operation are, for example, the Global Positioning System (GPS) or the GLObal Navigation Satellite System (GLONASS).
  • GPS Global Positioning System
  • GLONASS GLObal Navigation Satellite System
  • Other navigation systems are possible, e.g. based on mobile radio systems.
  • Communication systems can be, for example, short-range radio systems for car-to-car or car-to-infrastructure or also mobile radio communication systems, e.g. mobile communication systems of the 2nd / 3rd / 4th or 5th generation.
  • Appropriate antennas can be attached to the outside of the vehicle, but such additional devices pose a problem in several respects.
  • the corresponding devices require breakthroughs that are susceptible to corrosion.
  • such devices often disturb the visual impression.
  • such facilities also represent a source of noise as well increased wind resistance.
  • such antennas are also the target of vandalism.
  • GNSS antennas can be placed within the vehicle interior, such as under the dashboard or under the windshield.
  • electrically conductive layers such as infrared-reflecting layers or low-E layers can prevent the transmission of electromagnetic radiation through the pane and block the GNSS signal.
  • Typical GPS antennas are implemented as planar antennas and typically as patch antennas and are, for example, from WO 00/22695 A1 , the DE 202006011919 U1 or the DE 202010011837 U1 known.
  • a planar metallic antenna structure is arranged on one side of a printed circuit board or a ceramic carrier.
  • a flat base plate is arranged on the opposite side as a ground plane.
  • Antenna structure and base plate are connected to an electrical receiving unit via electrical lines. Due to the material thickness of the printed circuit board or the ceramic carrier, the antenna has a certain thickness and is clearly visible and not very aesthetic when arranged directly on the windshield.
  • Vivaldi antenna is known which can be attached to a vehicle window.
  • a patch antenna is known which can be attached to a vehicle window.
  • a crossed dipole antenna arrangement is known which can be mounted on a vehicle window.
  • antennas mounted on the surface of the pane have been connected with a coaxial cable.
  • a vehicle window with a first substrate and with at least one antenna structure and a connection area, the antenna structure being arranged on a flexible film, a first line area also being provided on the flexible film, the connection area being arranged on a carrier, wherein a second line area is also provided on the carrier, wherein the flexible film has a first contact area and the carrier has a second contact area for mutually connecting the first line area to the second line area, the flexible film being guided around one end of the first substrate.
  • the invention allows extensive integration while at the same time being inexpensive to manufacture.
  • the support is rigid. I.e. the invention can use circuit boards, for example.
  • the first contact area and the second contact area have three or more electrical contact points.
  • the first contact area and the second contact area have five or more electrical contact points.
  • a higher number of contact points can, for example, provide better shielding in the contact area.
  • the film and the carrier are arranged in an essentially overlapping manner in the area of the first contact area and the second contact area.
  • Structures that require several structured conductor layers can be implemented in the overlapping area, for example.
  • the film has a first structured conductor layer and a second structured conductor layer, with the first line region being designed as a grounded coplanar waveguide.
  • the film has at least one via.
  • the film has polyimide.
  • a flexible (partial) arrangement can thus be made available in a particularly simple manner.
  • the carrier has FR4.
  • a rigid (partial) arrangement can thus be made available in a particularly simple manner.
  • the carrier has at least one via.
  • a vehicle with a glass pane according to the invention in particular a land, sea, air or space vehicle, is provided.
  • the glass pane according to the invention is used to receive signals for satellite-based navigation, in particular to receive GNSS signals from Navstar GPS, Galileo, Glonass, Beidou, Navic, QZSS.
  • the glass pane according to the invention is used to receive signals from a mobile communication system, in particular a mobile communication system of the 2nd, 3rd, 4th or 5th generation.
  • the vehicle window can be a windshield, a rear window, a side window or a roof window.
  • the invention is explained in more detail below with reference to a drawing and exemplary embodiments.
  • the drawing is a schematic representation and not to scale. The drawing does not limit the invention in any way.
  • a vehicle window 1 with a first substrate GS1 and with at least one antenna structure ANT and a connection area AB is provided.
  • the antenna structure ANT is arranged on a flexible film F. Furthermore, a first line area GCPW1 is provided on the flexible film F.
  • the flexible (dielectric) film F can have at least one material selected from the group consisting of polyimide, polyurethane, polymethylene methacrylic acid, polycarbonate, polyethylene terephthalate, polyvinyl butyral, FR6, acrylonitrile-butadiene-styrene copolymer, polyethylene, polypropylene, polyvinyl chloride, polystyrene, polybutylene terephthalate, and polyamide.
  • connection area AB is arranged on a carrier T that can be produced separately.
  • a second line area GCPW2 is also provided on the carrier T.
  • the carrier T can be made of a material similar to the foil F, but can also have a different material, such as a rigid plate, for example made of FR4.
  • the flexible foil F has a first contact area C1 and the carrier T has a second contact area C2 for the mutual connection of the first line area GCPW1 to the second line area GCPW2.
  • the flexible film F is led around one end of the first substrate GS1.
  • the invention makes it possible to integrate an antenna ANT into a vehicle window 1 while devices for signal conditioning, such as filters/amplifiers, can be provided close to the antenna ANT on a (rigid) carrier T that can be produced separately.
  • devices for signal conditioning such as filters/amplifiers
  • forwarding can take place in an impedance-matched manner on the respective line areas GCPW1, GCPW2.
  • the signal-to-noise ratio can be maintained as far as possible.
  • the invention allows extensive integration while at the same time being inexpensive to manufacture.
  • the support T is rigid.
  • the invention can use circuit boards, for example.
  • electronic components EK can be fitted using conventional technology. This allows such devices to be produced inexpensively, which can be arranged close to the antenna ANT, so that the attenuation of the useful signal before amplification/filtering is minimal. In this way, for example, inexpensive amplifiers can be used.
  • first contact area C1 and the second contact area C2 each have three or more electrical contact points.
  • a connection for co-planar waveguides can be made available.
  • a connection of a ground potential to be made available while the central contact point provides a connection for the useful signal.
  • the first contact area C1 and the second contact area C2 each have five (as in figure 5 shown) or more electrical contact points.
  • a connection of a ground potential can be provided with the outer contact points, while the central contact point provides a connection for the useful signal.
  • a higher number of contact points can, for example, provide better shielding in the contact area.
  • the film F and the carrier T are - as in figure 6 shown - arranged essentially overlapping in the area of the first contact area C1 and the second contact area C2.
  • structures that require a plurality of structured conductor layers can be implemented in the overlapping area.
  • a first substrate GS1 of a vehicle pane 1 can also be seen. If the vehicle pane 1 is made available as a composite pane, a connecting film VF and a second substrate GS2 can be provided, for example.
  • the substrate GS1, GS2 preferably contains glass, particularly preferably flat glass, float glass, quartz glass, borosilicate glass, soda-lime glass or clear plastics, preferably rigid clear plastics, in particular polyethylene, polypropylene, polycarbonate, polymethyl methacrylate, polystyrene, polyamide, polyester, polyvinyl chloride and /or mixtures thereof.
  • FIG 2 a sectional view through a foil F is shown.
  • the film F can have a first electrically conductive layer LS1 and a second electrically conductive layer LS2.
  • a barrier layer B for example a (flexible) solder-stop layer.
  • One or more additional layer(s) ZS can also be provided, for example a cover layer (glued on).
  • the cover layer can also consist of a film material, for example.
  • the (first and/or the second) electrically conductive layer has a height h LS1 , h LS2 of 10 ⁇ m-75 ⁇ m.
  • FIG 3 a sectional view through a carrier T is shown.
  • the carrier T can have a third electrically conductive layer LS3 and an (optional) fourth electrically conductive layer LS4.
  • a connection area AB and a second lead structure GPCW2 can be made available in these two electrically conductive layers by structuring.
  • the carrier T can also be equipped with a barrier layer B, eg a (flexible) solder-stop layer.
  • the (third and/or the fourth) electrically conductive layer has a height h LS3 , h LS4 of 10 ⁇ m-75 ⁇ m.
  • the electrically conductive layers LS1, LS2, LS3, LS4 have silver and/or copper and/or gold and/or aluminum and/or indium and/or graphene. It should be noted here that the electrically conductive layers LS1, LS2 can have different materials. Preferred however, they have the same materials. This means that the conductor structures can also be adapted to electrical and/or thermal and/or mechanical boundary conditions.
  • the carrier T can cover the film F on a partial area or on the entire area.
  • At least one of the lateral conductors L1 and the opposite conductor to the ground potential level GP in relation to the film F are one or more vias VIA--as in FIG figure 4 implied - arranged.
  • the vias VIA can be arranged at a predetermined distance.
  • vias VIA can also be provided in an analogous manner in relation to the second lateral conductor L2 and the opposite ground potential level GP. The distance can be based on the wavelength of the signals to be conducted.
  • the characteristic impedance of the line area GCPW1, GCPW2 can be adjusted by such vias VIA.
  • improved potential equality over the extent of the arrangement is achieved by means of the plated-through holes VIA, so that the high-frequency properties can be further improved.
  • the carrier T can be equipped with such VIA that can perform the same function.
  • the arrangement - as in figure 1 indicated - a connection area AB for an electromechanical High-frequency connection element S on.
  • the high-frequency connection element S can have or consist of an SMA socket.
  • the SMA socket can have an angled arrangement, for example, so that a low overall height is made available in the connection area.
  • vehicle windows are equipped with an electromechanical high-frequency connection element S as a built-in part/replacement part in order to enable quick installation and reliable contacting.
  • the antenna and one or more electronic components can now be brought closer to one another.
  • the signal-to-noise ratio can be favorably influenced at an early stage.
  • the possibility of using so-called grounded coplanar waveguides for the line areas GCPW1, GCPW2 allows low-interference and/or low-loss transmission.
  • a vehicle with a glass pane 1 according to the invention in particular a land, sea, air or space vehicle, is provided.
  • the glass pane 1 according to the invention is used to receive signals for satellite-based navigation, in particular to receive GNSS signals from Navstar GPS, Galileo, Glonass, Beidou, Navic, QZSS.
  • the glass pane 1 according to the invention is used to receive signals from a mobile communication system, in particular a mobile communication system of the 2nd, 3rd, 4th or 5th generation.
  • the amplifier can be arranged close to the antenna.
  • the antenna or antennas can be placed between substrates GS1, GS2 of a laminated glass pane 1 be arranged. Since the antenna(s) ANT are arranged on a flexible foil F, the antenna ANT can adapt to a curvature of the vehicle window.
  • a feed line structure for example as a coplanar (grounded) waveguide, GCPW1, can be made available by means of the flexible film F. Since the film F is flexible, the film can be guided around one end of a substrate GS1, for example.
  • the electronics for an amplifier and/or filter can be provided on a carrier T that can be produced separately.
  • the carrier T and the foil F can be used as an integrated element - as in figure 6 shown - or as in figure 5 shown are made available via contact elements.
  • the high-frequency part can be implemented without significant geometry changes, leaving the impedance essentially unchanged.
  • connection area AB like a contact area C1 / C2 (e.g. as in figure 5 shown) be configured.

Landscapes

  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Details Of Aerials (AREA)
  • Waveguides (AREA)
EP20719470.5A 2019-05-08 2020-04-23 Fahrzeugscheibe Active EP3966890B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP19173249 2019-05-08
PCT/EP2020/061298 WO2020224973A1 (de) 2019-05-08 2020-04-23 Fahrzeugscheibe

Publications (2)

Publication Number Publication Date
EP3966890A1 EP3966890A1 (de) 2022-03-16
EP3966890B1 true EP3966890B1 (de) 2023-05-24

Family

ID=66476395

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20719470.5A Active EP3966890B1 (de) 2019-05-08 2020-04-23 Fahrzeugscheibe

Country Status (8)

Country Link
US (1) US12057624B2 (zh)
EP (1) EP3966890B1 (zh)
JP (1) JP7383729B2 (zh)
KR (1) KR102663936B1 (zh)
CN (1) CN112243550B (zh)
MA (1) MA55870A (zh)
PL (1) PL3966890T3 (zh)
WO (1) WO2020224973A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW201825370A (zh) * 2017-01-09 2018-07-16 漢斯 奧托 施瓦茨 帶輸送器之刮拭器及清潔快速運行之輸送帶之方法

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JP2003101319A (ja) 2001-09-26 2003-04-04 Toshiba Corp 車載アンテナ装置とその高周波伝送線路
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US20090251357A1 (en) 2008-04-04 2009-10-08 Toyota Motor Engineering & Manufacturing North America, Inc. Dual-band antenna array and rf front-end for mm-wave imager and radar
US20120098715A1 (en) 2010-10-22 2012-04-26 Pittsburgh Glass Works, Llc Wideband antenna
US20130099981A1 (en) 2010-05-19 2013-04-25 Saint-Gobain Glass France Antenna bandwidth-optimized by hybrid structure comprising planar and linear emitters
US20130141289A1 (en) 2010-06-14 2013-06-06 Saint-Gobain Glass France Antenna assembly and antenna structure with improved signal-to-noise ratio
US20140060921A1 (en) 2011-04-06 2014-03-06 Bernhard Reul Flat-conductor connection element for an antenna structure
US20140104122A1 (en) 2010-12-09 2014-04-17 Agc Automotive Americas R&D, Inc. Window Assembly Having A Transparent Layer And An Outer Region For An Antenna Element
US20170033433A1 (en) 2014-04-14 2017-02-02 Shanghai Amphenol Airwave Communication Electronics Co., Ltd. Windshield Antenna
US20170324143A1 (en) 2016-05-06 2017-11-09 GM Global Technology Operations LLC Thin film antenna to fakra connector
US20180037006A1 (en) 2015-04-08 2018-02-08 Saint-Gobain Glass France Vehicle antenna pane
WO2020126606A1 (de) 2018-12-21 2020-06-25 Saint-Gobain Glass France Glasscheibe für ein fahrzeug

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003101319A (ja) 2001-09-26 2003-04-04 Toshiba Corp 車載アンテナ装置とその高周波伝送線路
DE20210286U1 (de) 2002-07-03 2002-12-12 FUBA Automotive GmbH & Co. KG, 31162 Bad Salzdetfurth Adapter für HF-Anschlüsse
US20070159395A1 (en) 2006-01-06 2007-07-12 Sievenpiper Daniel F Method for fabricating antenna structures having adjustable radiation characteristics
US20090251357A1 (en) 2008-04-04 2009-10-08 Toyota Motor Engineering & Manufacturing North America, Inc. Dual-band antenna array and rf front-end for mm-wave imager and radar
US20130099981A1 (en) 2010-05-19 2013-04-25 Saint-Gobain Glass France Antenna bandwidth-optimized by hybrid structure comprising planar and linear emitters
US20130141289A1 (en) 2010-06-14 2013-06-06 Saint-Gobain Glass France Antenna assembly and antenna structure with improved signal-to-noise ratio
US20120098715A1 (en) 2010-10-22 2012-04-26 Pittsburgh Glass Works, Llc Wideband antenna
US20140104122A1 (en) 2010-12-09 2014-04-17 Agc Automotive Americas R&D, Inc. Window Assembly Having A Transparent Layer And An Outer Region For An Antenna Element
US20140060921A1 (en) 2011-04-06 2014-03-06 Bernhard Reul Flat-conductor connection element for an antenna structure
US20170033433A1 (en) 2014-04-14 2017-02-02 Shanghai Amphenol Airwave Communication Electronics Co., Ltd. Windshield Antenna
US20180037006A1 (en) 2015-04-08 2018-02-08 Saint-Gobain Glass France Vehicle antenna pane
US20170324143A1 (en) 2016-05-06 2017-11-09 GM Global Technology Operations LLC Thin film antenna to fakra connector
WO2020126606A1 (de) 2018-12-21 2020-06-25 Saint-Gobain Glass France Glasscheibe für ein fahrzeug

Also Published As

Publication number Publication date
JP2022531604A (ja) 2022-07-07
KR102663936B1 (ko) 2024-05-08
MA55870A (fr) 2022-03-16
WO2020224973A1 (de) 2020-11-12
CN112243550B (zh) 2023-06-27
JP7383729B2 (ja) 2023-11-20
US12057624B2 (en) 2024-08-06
KR20210152563A (ko) 2021-12-15
EP3966890A1 (de) 2022-03-16
CN112243550A (zh) 2021-01-19
US20220231405A1 (en) 2022-07-21
PL3966890T3 (pl) 2023-07-24

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