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WO2021032655A1 - Disque d'antenne à antenne de conception plane - Google Patents

Disque d'antenne à antenne de conception plane Download PDF

Info

Publication number
WO2021032655A1
WO2021032655A1 PCT/EP2020/072948 EP2020072948W WO2021032655A1 WO 2021032655 A1 WO2021032655 A1 WO 2021032655A1 EP 2020072948 W EP2020072948 W EP 2020072948W WO 2021032655 A1 WO2021032655 A1 WO 2021032655A1
Authority
WO
WIPO (PCT)
Prior art keywords
antenna
layer
electrically conductive
conductive layer
pane
Prior art date
Application number
PCT/EP2020/072948
Other languages
German (de)
English (en)
Inventor
Guillaume PETITDIDIER
Guillaume Francois
Varun RAMESH KUMAR
Original Assignee
Saint-Gobain Glass France
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 Saint-Gobain Glass France filed Critical Saint-Gobain Glass France
Priority to CN202080003058.5A priority Critical patent/CN112714981A/zh
Publication of WO2021032655A1 publication Critical patent/WO2021032655A1/fr

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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/08—Radiating ends of two-conductor microwave transmission lines, e.g. of coaxial lines, of microstrip lines
    • H01Q13/085—Slot-line radiating ends
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
    • H01Q9/40—Element having extended radiating surface

Definitions

  • communication or data transmission windows are known, for example, from EP 1605729 A2.
  • communication or data transmission windows can be too small to enable the sending and receiving of high-frequency electromagnetic radiation, as is necessary, for example, for mobile telephony and satellite-based navigation. This applies in particular when the antenna required for this is arranged far away from the window and only a small amount of signal intensity can reach the reception area of the antenna through a small communication window or only a small amount of signal intensity can be sent outside through the communication window.
  • a transparent, electrically conductive layer of the vehicle window is coupled galvanically or capacitively with a coupling electrode and the antenna signal is made available in the edge area of the pane.
  • the antenna signal decoupled from the planar antenna is fed to an antenna amplifier which is connected to the metal body in motor vehicles, whereby a high-frequency reference potential for the antenna signal is specified.
  • the usable antenna voltage results from the difference between the reference potential of the vehicle body and the potential of the antenna signal.
  • US 2019/0165447 A1 discloses a planar antenna with a transmission layer and a base layer which are arranged in a co-planar manner and are galvanically connected to one another.
  • the transmission layer is connected to a signal conductor via plated-through holes ("vias"). Also shown is a capacitive coupling between the transmission layer and the signal conductor.
  • WO 2016/162251 A1 discloses a vehicle antenna window which has an antenna structure and a base plate, a dielectric being arranged between the antenna structure and the base plate.
  • the antenna pane has at least one antenna of planar design (surface antenna or patch antenna), which is preferably integrated into the antenna pane over a large area.
  • the planar antenna has a transmitting / receiving surface for emitting and / or receiving antenna signals, as well as a base surface for providing a reference potential for the antenna signals.
  • the antenna pane comprises at least one electrically insulating substrate and a dielectric film arranged on the substrate.
  • the dielectric film has a first side or first surface and a second side or second surface opposite the first side.
  • On the first surface of the dielectric film there is a first electrically conductive layer on the second surface of the dielectric film a second electrically conductive layer.
  • the first electrically conductive layer and / or the second electrically conductive layer are applied directly to the film, for example.
  • one or more further layers made of materials different from the electrically conductive layers and the dielectric film to be located between the first electrically conductive layer and / or the second electrically conductive layer and the respective surface of the dielectric film.
  • the transmitting / receiving layer and the base layer, which are arranged on both sides of the dielectric film, are not galvanically connected to one another.
  • the spatial distance between the transmitting / receiving layer and the base layer caused by the thickness of the dielectric film is selected so that there is a direct current resistance of, for example, at least 10 kOhm.
  • the present invention is based on the knowledge that the arrangement of the two functional surfaces of the antenna, namely the transmitting / receiving surface and the base, on different levels of the dielectric film, as well as the direct galvanic connection of the transmitting / receiving layer with the signal conductor and the direct galvanic connection
  • the base layer with the base conductor makes the use of plated-through holes for the electrical connection of the transmitting / receiving surface and the signal conductor superfluous, so that the production of the antenna pane can be carried out more simply, quickly and cost-effectively.
  • the signal conductor is not capacitively but galvanically connected to the transmitting / receiving layer, whereby the signal quality can be improved.
  • the dielectric film is flexible.
  • the flexible film can be used both as a carrier material for thin, flexible layers and thus adapt well to the contours of a pane.
  • the high-frequency properties such as bandwidth can be influenced by the dielectric properties of the flexible film.
  • a material can be used which is suitable as a carrier for antennas / conductor structures during manufacture and, if necessary, optically transparent and / or can be easily connected to a substrate.
  • the dielectric film 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 contain or consist of them.
  • the film preferably contains or consists of polyimide. If the dielectric film consists of a material, impurities may be present, which, however, as a rule do not amount to more than 5 atom%.
  • the thickness of the dielectric film is preferably in the range from 10 ⁇ m to 100 ⁇ m.
  • the dielectric film is thus provided with an antenna structure on each of its two surfaces, with the transmitting / receiving layer and the signal conductor on one surface (side) and the base surface and the base conductor on the other surface (side).
  • the first electrically conductive layer and / or the second electrically conductive layer each have an electrically insulating cover layer.
  • the cover layer can contain or consist of polyimide.
  • the cover layer can be connected to the electrically conductive layer in particular by an adhesive, for example an acrylate adhesive.
  • the cover layer has a thickness of 25 ⁇ m to 50 ⁇ m, for example.
  • the antenna structures on the dielectric film can be protected by the cover layer (s).
  • the dielectric film can accordingly be arranged both on an outer surface of the pane and also introduced between the panes of a laminated glass pane.
  • a masking for example a black print, is arranged on one side of the dielectric film, in particular on both sides of the dielectric film, so that parts of the antenna and / or the supply lines can be provided in a concealed manner without the optical impression in Affect the rest of the antenna pane.
  • the thickness of the at least one substrate can vary widely and be adapted to the requirements of the individual case. Substrates with the standard thicknesses of 1.0 mm to 25 mm and preferably of 1.4 mm to 2.1 mm are preferably used. The size of the substrate can vary widely and depends on the use.
  • the antenna pane it has a plurality of antennas.
  • the antennas are galvanically separated from one another, the high-frequency decoupling being at least -20 dB.
  • the structuring of the electrically conductive layers takes place by partial stripping, i.e. the transmitting / receiving layer and the signal conductor as well as the base layer and the base conductor are produced by partial stripping of the respective electrically conductive layer.
  • the stripping takes place, for example, with a laser beam.
  • the electrical structures can be molded into the respective electrically conductive layer by means of insulation lines.
  • the stripping of a line with a width that is wider than the width of a laser beam cone can be done by repeatedly tracing the line with the laser beam. It is also possible to completely remove the areas of the electrically conductive layers that do not belong to the respective electrical structures.
  • the stripping can take place in particular by mechanical removal and by chemical or physical etching.
  • At least two panes are connected (laminated) to one another, preferably under the action of heat, vacuum and / or pressure, by at least one thermoplastic adhesive layer (adhesion promoting layer).
  • thermoplastic adhesive layer adheresion promoting layer.
  • Methods known per se for producing a composite pane can be used. For example, so-called autoclave processes can be carried out at an elevated pressure of about 10 bar to 15 bar and temperatures of 130 ° C. to 145 ° C. for about 2 hours.
  • Vacuum bag or vacuum ring processes known per se work, for example, at around 200 mbar and 130 ° C to 145 ° C.
  • FIG. 1 shows a schematic representation of an embodiment of the antenna pane according to the invention in a sectional view
  • FIG. 5 is a schematic representation of the dielectric film with electrical
  • a first cover layer 17 is preferably arranged on the first electrically conductive layer 4 (in the direction of the first substrate 2) and a second cover layer 17 'is arranged on the second electrically conductive layer 4' (in the direction of the second substrate 2 '), for example glued on by an adhesive, like an acrylate adhesive.
  • the two cover layers 17, 17 ' which for example consist of polyimide (PI), are not shown in more detail in FIG.
  • the film 3, the first electrically conductive layer 4, the first cover layer 17, the second electrically conductive layer 4 'and the second cover layer 17' can be a prefabricated composite.
  • a masking layer 12, 12 ' is located between a respective adhesion promoting layer 11, 1 T and the adjacent substrate 2, 2'.
  • the masking layer 12, 12 ′ can, for example, be a black print, so that parts of the antenna 15 and / or the feed structure 16 can be provided in a covered manner without impairing the visual impression in the rest of the antenna pane 1.
  • the antenna pane 1 can also comprise only a single substrate 2. The two adhesion promoting layers 11, 11 'are then superfluous.
  • FIG. 5 in which the dielectric film 3 with the first electrically conductive layer 4 and the second electrically conductive layer 4 'of FIG. 1 is shown in a perspective view on the basis of a schematic illustration.
  • the second dielectric layer 4 ' is at the bottom and the first dielectric layer 4 is at the top.
  • the film 3 itself is not shown, but only the first electrically conductive layer 4 and the second electrically conductive layer 4 'or the electrical structures formed therefrom, between which the film 3 is located.
  • the two electrically conductive layers 4, 4 ' together form an antenna 15 and a lead structure 16.
  • the first electrically conductive layer 4 forms and consists of a transmitting / receiving layer 6 and a signal conductor 8 as well as basic conductors 9' arranged adjacent to the signal conductor 8, 9 ".
  • the second electrically conductive layer 4 forms and consists of a base layer 7 and a base conductor 9.
  • the antenna 15 consists of the transmitting / receiving layer 6 and the base layer 7.
  • the lead structure 16 consists of the signal conductor 8 and the base conductor 9, as well as the basic ladders 9 ', 9 ".
  • the transmitting / receiving layer 6 and the signal conductor 8 are designed as a coherent area of the first electrically conductive layer 4 and are thus galvanically connected to one another.
  • the two base conductors 9 ', 9 "arranged adjacent to the signal conductor 8 are not galvanically connected to the signal conductor 8.
  • the base layer 7 and the base conductor 9 are designed as a coherent area of the second electrically conductive layer 4' and are thus galvanically connected to one another are formed in the same electrically conductive layer 4, the transmitting / receiving layer 6 and the signal conductor 8 are co-planar.
  • the base layer 7 and the base conductor 9, since they are formed in the same electrically conductive layer 4 ', are co-planar.
  • the transmitting / receiving layer 6 and the signal conductor 8 on the one hand and the base layer 7 and the base conductor 9 on the other hand are located on opposite sides of the dielectric film 3 and are thus arranged in different planes of the antenna pane 1.
  • the transmitting / receiving layer 6 and the base layer 7 are not galvanically connected to each other, but electr. through the dielectric film 3 is separated from each other.
  • the sending / receiving layer 6 can be approximated functionally and structurally as a surface and forms a transmitting / receiving surface.
  • the base layer 7 can be understood functionally and structurally as a surface and forms a base surface.
  • the transmit / receive layer 6 is used to transmit and / or receive antenna signals.
  • the base layer 7 is to be connected to electrical ground and is used to provide a reference potential for the antenna signals.
  • the transmitting / receiving layer 6 and the signal conductor 8 are formed by the first electrically conductive layer 4 and the base layer 7 and the base conductor 9 by the second electrically conductive layer 4 ', which is preferred according to the invention.
  • the transmitting / receiving layer 6 and the signal conductor 8 to be formed by the second electrically conductive layer 4 ′ and the base layer 7 and the base conductor 9 to be formed by the first electrically conductive layer 4.
  • the transmitting / receiving layer 6 and the base layer 7 When viewed perpendicularly through or in projection onto the antenna pane 1 or one of the surfaces 5, 5 ′ of the dielectric film 3, the transmitting / receiving layer 6 and the base layer 7 are arranged directly adjacent, next to one another and have a slight overlap 13.
  • the transmitting / receiving layer 6 and the base layer 7 are, for example, rectangular, but can have any shape suitable for the antenna function, for example an elliptical shape (see FIGS. 3 and 4). It would also be possible for the transmitting / receiving layer 6 and the base layer 7 not to have an overlap 13 in projection.
  • the basic conductor 9 and the signal conductor 8 are each designed in the form of strip conductors, are not co-planar and are arranged one above the other with a parallel course. When viewed perpendicularly through or in projection onto the antenna pane 1 or one of the surfaces 5, 5 'of the dielectric film 3, the base conductor 9 and the signal conductor 8 are at least partially arranged in overlap.
  • the base conductors 9 ′, 9 ′′ are formed adjacent, parallel and at a distance from the signal conductor 8 and are electrically connected to the base conductor 9 of the first electrically conductive layer 4 by means of vias 14 Signal quality can be improved. This is irrelevant for understanding the invention, so that it does not have to be discussed in more detail here.
  • the basic conductors 9 ′, 9 ′′ could also be omitted.
  • FIG. 2 an enlarged section of the dielectric film 3 in the area of the lead structure 16 is illustrated with the aid of a perspective view.
  • FIG. 3 shows a view of the dielectric film 3.
  • the transmitting / receiving layer 6, which is directly galvanically connected to the signal conductor 8, can be seen.
  • the two base conductors 9 ′, 9 ′′ are not galvanically connected to the transmitting / receiving layer 6 and the signal conductor 8.
  • the base layer 7 is located on the other side of the dielectric film 3, which cannot be seen here, which is illustrated by a dashed illustration
  • the transmitting / receiving layer 6 and the base layer 7 are, for example, elliptical here.
  • the base layer 7 is directly galvanically connected to the co-planar base conductor 9.
  • the transmitting / receiving layer 6 is located on the other side of the dielectric film 3, which cannot be seen here, which is illustrated by a dashed illustration.
  • the transmitting / receiving layer 6 and the base layer 7 are here, for example, elliptical in shape and each have a cutout.
  • the antenna 15 is designed, for example, as a monopole planar antenna, preferably as a dipole antenna, in particular as a Vivaldi antenna.
  • An electrical external connection of the antenna 15 is made via the signal conductor 8 and the base conductor 9.
  • the preferably flexible dielectric film 3 with the signal conductor 8 and the base conductor 9 is led out of the antenna pane 1 between the substrates 2, 2 'and folded over. Electrical contacting of the signal conductor 8 takes place at a signal conductor connection point 19, and electrical contacting of the base conductor 9 takes place on base conductor connection points 18 (see FIG. 5). This can be done, for example, by means of respective pins, the connecting piece used in a conventional manner to be provided.
  • the connector is connected to a coaxial cable that can be connected to transmitter / receiver electronics. The use of additional ribbon conductors is advantageously not required.
  • the antenna pane 1 and the transmitter / receiver electronics are components of an antenna pane arrangement according to the invention.
  • FIG. 6 illustrates the method according to the invention on the basis of a flow chart.
  • a first step I at least one substrate 2 is provided.
  • a dielectric film 3 is provided.
  • a first electrically conductive layer 4 is applied to a first surface 5 of the film 3 and a second electrically conductive layer 4 ′ is applied to a second surface 5 ′ of the film 3 opposite thereto.
  • the first electrically conductive layer 4 is structured to form a transmit / receive layer 6 of the antenna 15 and a signal conductor 8 galvanically connected to the transmit / receive layer 6 for antenna signals to be received / transmitted by the antenna 15.
  • the second electrically conductive layer 4 ' is structured to form a base layer 7 of the antenna 15 and a base conductor 9 galvanically connected to the base layer 7 for providing a reference potential for the antenna signals.
  • the film 3 with a structured first conductive layer 4 and a structured second electrically conductive layer 4 ′ is arranged on the substrate 2.
  • the invention provides an improved antenna pane with one or more preferably integrated antennas.
  • the antenna pane can be produced simply and inexpensively using known production methods. The use of through contacts is not required. High-frequency antenna signals can be received / sent with good signal strength. A plurality of antennas can be easily formed.
  • composite panes can be produced using conventional technology without the risk of poor lamination or glass breakage.
  • the antenna can in particular have a dipole characteristic or a broadband characteristic.
  • the specific properties of the antenna and the supply line structure with regard to the characteristic impedance and / or symmetry can be matched well to one another, so that the reception results in the desired wavelength range are of good to best quality are.
  • the integration in particular avoids the classic interface problems that would result from the otherwise necessary connection technology.

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  • Details Of Aerials (AREA)

Abstract

L'invention concerne un disque d'antenne (1) avec au moins une antenne (15) d'une conception plane, comprenant : Au moins un substrat isolant électrique (2, 2'), 10 - un film diélectrique (3) qui est disposé sur le substrat (2),-une première couche électriquement conductrice (4) sur une première surface (5) du film diélectrique (3) et une seconde couche électriquement conductrice (4') sur une seconde surface (5'), opposée à la première surface (5) du film diélectrique (3), une couche d'émission-réception (6) de l'antenne (15) et un conducteur de signal (8), qui est relié galvaniquement à la couche d'émission-réception (6), pour des signaux d'antenne devant être reçus/transmis par l'antenne (15) sont formés dans la première couche électriquement conductrice (4), et une couche de base (7) de l'antenne (15) et un conducteur de base (9) qui est relié galvaniquement à la couche de base (7) et qui a pour but de rendre disponible un potentiel de référence pour les signaux d'antenne qui sont formés dans la deuxième couche électriquement conductrice (4F).
PCT/EP2020/072948 2019-08-21 2020-08-17 Disque d'antenne à antenne de conception plane WO2021032655A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202080003058.5A CN112714981A (zh) 2019-08-21 2020-08-17 具有平面结构方式的天线的天线板

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP19192965 2019-08-21
EP19192965.2 2019-08-21

Publications (1)

Publication Number Publication Date
WO2021032655A1 true WO2021032655A1 (fr) 2021-02-25

Family

ID=67659764

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2020/072948 WO2021032655A1 (fr) 2019-08-21 2020-08-17 Disque d'antenne à antenne de conception plane

Country Status (3)

Country Link
CN (1) CN112714981A (fr)
DE (1) DE202020005661U1 (fr)
WO (1) WO2021032655A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024184053A1 (fr) 2023-03-03 2024-09-12 Agc Glass Europe Vitrage d'antenne comprenant de multiples antennes

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0378917A1 (fr) 1988-12-16 1990-07-25 Nippon Sheet Glass Co., Ltd. Plaque de sandwich réfléchissant la chaleur
EP0720249A2 (fr) 1994-12-27 1996-07-03 Ppg Industries, Inc. Antenne de vitrage pour véhicule automobile
US6313796B1 (en) 1993-01-21 2001-11-06 Saint Gobain Vitrage International Method of making an antenna pane, and antenna pane
DE10106125A1 (de) 2001-02-08 2002-08-14 Fuba Automotive Gmbh Kraftfahrzeugscheibe mit Antennenstrukturen
US20030112190A1 (en) 2000-04-19 2003-06-19 Baliarda Carles Puente Advanced multilevel antenna for motor vehicles
EP0847965B1 (fr) 1996-12-12 2004-10-20 Saint-Gobain Glass France Vitrage comprenant un substrat muni d'un empilement de couches minces pour la protection solaire et-ou l'isolation thermique
DE10319606A1 (de) 2003-05-02 2004-11-25 Saint-Gobain Sekurit Deutschland Gmbh & Co. Kg Antennenscheibe für Fahrzeuge
EP1605729A2 (fr) 2004-04-15 2005-12-14 Pilkington Plc Vitrage chauffée électriquement.
WO2010043598A1 (fr) 2008-10-15 2010-04-22 Saint-Gobain Glass France Objet transparent présentant une zone transparente pouvant être chauffée électriquement, structurée, délimitée localement, procédé pour sa production, et son utilisation
WO2016162251A1 (fr) 2015-04-08 2016-10-13 Saint-Gobain Glass France Vitrage à antenne pour véhicule
US20190165447A1 (en) 2017-11-28 2019-05-30 Taoglas Group Holdings Limited In-glass high performance antenna

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0378917A1 (fr) 1988-12-16 1990-07-25 Nippon Sheet Glass Co., Ltd. Plaque de sandwich réfléchissant la chaleur
US6313796B1 (en) 1993-01-21 2001-11-06 Saint Gobain Vitrage International Method of making an antenna pane, and antenna pane
EP0720249A2 (fr) 1994-12-27 1996-07-03 Ppg Industries, Inc. Antenne de vitrage pour véhicule automobile
EP0847965B1 (fr) 1996-12-12 2004-10-20 Saint-Gobain Glass France Vitrage comprenant un substrat muni d'un empilement de couches minces pour la protection solaire et-ou l'isolation thermique
US20030112190A1 (en) 2000-04-19 2003-06-19 Baliarda Carles Puente Advanced multilevel antenna for motor vehicles
DE10106125A1 (de) 2001-02-08 2002-08-14 Fuba Automotive Gmbh Kraftfahrzeugscheibe mit Antennenstrukturen
DE10319606A1 (de) 2003-05-02 2004-11-25 Saint-Gobain Sekurit Deutschland Gmbh & Co. Kg Antennenscheibe für Fahrzeuge
EP1605729A2 (fr) 2004-04-15 2005-12-14 Pilkington Plc Vitrage chauffée électriquement.
WO2010043598A1 (fr) 2008-10-15 2010-04-22 Saint-Gobain Glass France Objet transparent présentant une zone transparente pouvant être chauffée électriquement, structurée, délimitée localement, procédé pour sa production, et son utilisation
WO2016162251A1 (fr) 2015-04-08 2016-10-13 Saint-Gobain Glass France Vitrage à antenne pour véhicule
US20190165447A1 (en) 2017-11-28 2019-05-30 Taoglas Group Holdings Limited In-glass high performance antenna

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024184053A1 (fr) 2023-03-03 2024-09-12 Agc Glass Europe Vitrage d'antenne comprenant de multiples antennes

Also Published As

Publication number Publication date
CN112714981A (zh) 2021-04-27
DE202020005661U1 (de) 2021-12-15

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