CN112074990A - Vehicle glazing - Google Patents
Vehicle glazing Download PDFInfo
- Publication number
- CN112074990A CN112074990A CN202080000829.5A CN202080000829A CN112074990A CN 112074990 A CN112074990 A CN 112074990A CN 202080000829 A CN202080000829 A CN 202080000829A CN 112074990 A CN112074990 A CN 112074990A
- Authority
- CN
- China
- Prior art keywords
- vehicle glazing
- conductive layer
- coupler
- glazing according
- electrically conductive
- 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.)
- Pending
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Classifications
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/12—Coupling devices having more than two ports
- H01P5/16—Conjugate devices, i.e. devices having at least one port decoupled from one other port
- H01P5/18—Conjugate devices, i.e. devices having at least one port decoupled from one other port consisting of two coupled guides, e.g. directional couplers
- H01P5/184—Conjugate devices, i.e. devices having at least one port decoupled from one other port consisting of two coupled guides, e.g. directional couplers the guides being strip lines or microstrips
- H01P5/185—Edge coupled lines
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/12—Coupling devices having more than two ports
- H01P5/16—Conjugate devices, i.e. devices having at least one port decoupled from one other port
- H01P5/19—Conjugate devices, i.e. devices having at least one port decoupled from one other port of the junction type
- H01P5/22—Hybrid ring junctions
- H01P5/227—90° branch line couplers
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- Details Of Aerials (AREA)
Abstract
The invention relates to a vehicle glazing (1) having a substrate (GS1) and at least one electrically conductive layer (L1), wherein at least two antennas (ANT1, ANT2) are formed in the electrically conductive layer (L1), wherein furthermore at least one coupler (K) is formed in the electrically conductive layer (L1) by means of strip conductor technology, wherein furthermore an antenna line (FL) which leads to a connection region is formed in the electrically conductive layer (L1), wherein the coupler (K) is arranged between the antenna line (FL) and the antennas (ANT1, ANT2), wherein a delay line is arranged between one of the antennas (ANT1, ANT2) and the coupler (K), wherein the delay line is a lambda/4 line, so that circularly polarized signals can be received.
Description
The present invention relates to vehicle glazing and uses thereof.
Vehicles are increasingly being equipped with electrical components. In addition to classical radio devices, an increasing number of devices found in vehicles can receive or transmit high frequency signals.
For example, receiving signals of a navigation system or signals of a communication system may be mentioned here.
The navigation system may be a satellite-assisted navigation satellite system (GNSS), for example. The system in operation is, for example, the Global Positioning System (GPS) or the global navigation satellite system (GLONASS). Other navigation systems may be based on mobile radio systems, for example.
The communication system may for example be a short range radio system for car-to-car or car-to-infrastructure, or a mobile radio communication system, such as a second/third/fourth or fifth generation mobile communication system.
Although it is possible to fix the respective antenna on the outside of the vehicle, such additional means pose problems in several respects.
An exemplary arrangement is known from US 20140176374 a 1.
On the one hand, the corresponding devices require notches, which are susceptible to corrosion. On the other hand, such devices often disturb the visual impression. However, such devices also typically provide a source of noise and increased air resistance. In addition, such antennas are also targeted for catastrophic failure. Such an arrangement is known, for example, from EP 1726062B 1.
An arrangement between two glass plates is known from US patent application US 2017/0237139 a 1. The arrangement has a coupler to transmit the signals of the different antennas in a broadband form to the circuitry outside the glass plate.
Different requirements are placed on the combination of the antenna signals depending on the application.
It may therefore be necessary to convey different signals of different antennas to the receiver on the same antenna conductor. On the other hand, it may be necessary to combine signals from different receive directions of the associated antennas (with appropriate phase shifts) to provide a particular polarization.
A radar antenna arrangement with a transmitting antenna is known from european patent application EP 2942639 a 1. The transmitting antenna is manufactured as a patch antenna by means of strip conductor technology. The polarization of the transmitted signal may be horizontal or vertical.
In the case hitherto, a plurality of joints has been provided for this purpose on the vehicle glazing. The signals from the linkers are then combined by conventional techniques.
However, this is susceptible to interference, since a plurality of joints must be provided and they must also be connected. Thereby increasing the risk of failure. In addition, there is not a sufficient degree of space everywhere for multiple joints, since otherwise the optical properties may be compromised.
It is an object of the present invention to provide an improved vehicle glazing in which an antenna, in particular a GPS antenna, can be integrated easily and cost-effectively and into which a connection structure with improved properties can be integrated easily and cost-effectively.
According to the invention, the object of the invention is achieved by a vehicle glazing according to independent claim 1. Preferred embodiments emerge from the dependent claims, the figures and the description.
The vehicle glazing with an antenna of the invention has a substrate and at least one conductive layer. At least two antennas are formed in the conductive layer. Furthermore, at least one coupler is formed in the conductive layer by means of strip conductor technology. Furthermore, an antenna line is formed in the conductive layer, which line is connected to the connection region, wherein a coupler is arranged between the antenna line and the two antennas. A delay line is arranged between one of the two antennas and the coupler, wherein the delay line is designed as a lambda/4 line.
By means of the delay line, a certain phase delay can be adjusted so that, for example, signals from different polarization planes received by the two antennas are combined so that circularly polarized signals can be received.
By means of the invention, the coupling element is transferred into the vehicle glazing. Thereby the cost can be greatly reduced. Here, the present invention utilizes the following facts: the antenna in the vehicle glazing may be arranged at almost any location. The coupler can be installed at any position between the antenna and the terminal.
In one embodiment of the invention, the coupler is a directional coupler. The directional coupler can in this case be used as a power combiner to supply signals from 2 input ports to one output port. Thus, although they are set to be wavelength selective, they nevertheless provide good enough coupling in a frequency band that is sufficient for many applications. The coupler may be manufactured as a single or multi-stage, for example as a taper and branch coupler.
According to yet another embodiment of the invention, the height of the electrically conductive layer is between 10 μm and 75 μm.
This enables a thin arrangement which can also be integrated into the composite glass pane or can also be adapted to curved surfaces.
According to yet another embodiment of the invention, the electrically conductive layer is at least partially provided with a cover layer.
The cover layer may be, for example, a black print, so that a hidden part of the antenna ANT1, ANT2 and/or the coupler K and/or the feed line FL may be provided without impairing the visual impression in other parts of the vehicle glazing.
In another embodiment of the invention, the antenna is configured for receiving high frequency signals. In particular, the antenna structure may be configured for receiving mobile radio communication signals and/or signals of a (satellite-assisted) positioning system.
According to yet another embodiment of the invention, the connection region has an electromechanical high-frequency connection element. In particular, the connection structure may have an SMA interface.
In another embodiment of the invention, the substrate is a glass substrate or a plastic substrate. Essentially all electrically insulating substrates are suitable as substrates that are thermally and chemically stable under the conditions of manufacture and use of the vehicle glazing of the invention.
The vehicle glass pane preferably comprises 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.
This means that the invention can be incorporated into material systems which have proven advantageous.
In yet another embodiment of the present invention, the at least one conductive layer is applied on a dielectric foil. In particular, the dielectric foil may have at least one material selected from the group consisting of polyimide, polyurethane, polymethylene methacrylic acid (ä ure), polycarbonate, polyethylene terephthalate, polyvinyl butyral, FR6, acrylonitrile-butadiene-styrene copolymer, polyethylene, polypropylene, polyvinyl chloride, polystyrene, polybutylene terephthalate, and polyamide.
This means that materials which are suitable on the one hand as carriers for the antenna structure/coupler/conductor structure during manufacture and which are optionally optically transparent and/or optionally readily bondable to the substrate can be used.
In yet another embodiment of the invention, the foil has a second electrically conductive layer disposed on the opposite side of the first electrically conductive layer.
Thereby, for example, a strip conductor/waveguide structure can be provided in various implementations, for example as a so-called grounded coplanar waveguide (coplanar line).
According to another embodiment of the invention, the foil is substantially permeable in the wavelength range 400 nm-700 nm.
Thereby not compromising the optical properties.
In another embodiment of the present invention, the vehicle glass pane is a composite glass pane, wherein the vehicle glass pane further has a second substrate, wherein the foil is incorporated between the first substrate and the second substrate.
This means that the foil can be introduced both on the outer side of the glass pane and between the glass layers of the composite glass pane.
According to another embodiment of the present invention, there is provided a vehicle, in particular a land, marine, aeronautical or aerospace vehicle, having a glass sheet according to the present invention.
According to yet another embodiment of the invention, the glass plate of the invention is used for receiving signals for satellite-assisted navigation, in particular GNSS signals of the navigation satellites GPS, galileo, glonass, beidou, Navic, QZSS. Alternatively or additionally, the glass pane of the invention is used for receiving signals of a mobile communication system, in particular of a second, third, fourth or fifth generation mobile communication system.
The invention is explained in more detail below with reference to the examples and embodiments. The figures are schematic and not true to scale. The figures in no way limit the invention.
Wherein:
FIG. 1 shows a schematic cross section regarding the arrangement of foil, conductive layer(s) and substrate layer with respect to a vehicle glazing panel according to aspects of the present invention, an
Fig. 2 shows a schematic top view of a foil in relation to an embodiment of the invention.
The invention is explained in more detail below with reference to the figures. It should be noted here that different aspects are described, which can be used individually or in combination. This means that various aspects may be used with different embodiments of the invention, unless explicitly described as a pure alternative.
Furthermore, for the sake of simplicity, below only one entity is usually involved in the following. The invention may also have a plurality of involved entities in each case, unless explicitly stated otherwise. In this regard, the use of the terms "a," "an," and "an" should only be construed to imply the use of at least one entity in a simple embodiment.
If a method is described below, the various steps of the method can be arranged in any order and/or combined unless something different is clear from the context. These methods may also be combined with each other, unless explicitly indicated otherwise.
The description by numerical values should generally not be understood as precise values, but also include tolerances of +/-1% to +/-10%.
If nomenclature, specifications, etc. are known in the present application, at least always reference is made to the applicable standards, specifications, etc. at the filing date. This means that the present invention is also applicable to standards/specifications, etc., if they are updated or replaced by a later version.
Various embodiments are shown in figures 1 and 2.
In particular, the figure shows a vehicle glazing panel 1. The vehicle glazing 1 has a first substrate GS1 and at least one conductive layer L1.
The conductive layer L1 has silver and/or copper and/or gold and/or aluminum and/or indium and/or graphene.
At least one first antenna ANT1 and a second antenna ANT2 are formed in the conductive layer L1. Antennas ANT1, ANT2 may be the same type of antenna, antennas for different frequency ranges, and/or antennas for different polarization planes.
Furthermore, at least one (passive electrical) coupler L is formed in the conductive layer L1 by means of strip conductor technology.
Further, an antenna wire FL connected to the connection region is formed in the conductive layer L1.
Here, the antenna ANT and/or the antenna wire FL and/or the coupler K can be formed in the conductive layer L1 by suitable methods, for example (ablative) laser structuring, (wet chemical) etching, etc., and/or parts of the conductive layer L1 can be applied by suitable printing methods, for example screen printing.
The coupler K is arranged between the antenna wire FL and the antenna ANT. The antenna wire FL may be connected to the amplifier module.
A delay line, for example, a λ/4 line, is arranged between one of the two antennas ANT1, ANT2 and the coupler K.
By means of the delay line, a certain phase delay can be adjusted so that, for example, signals from different polarization planes received by the two antennas are combined so that circularly polarized signals can be received.
By means of the invention, the coupling element K is transferred into the vehicle glazing 1. Thereby the cost can be greatly reduced. Here, the present invention utilizes the following facts: the antennas ANT1, ANT2 in the vehicle glazing 1 may be arranged at almost any position. Here, the coupler K may be installed at any position between the antennas ANT1, ANT2 and the connector.
In one embodiment of the invention, the coupler K is a directional coupler. The directional coupler can in this case be used as a power combiner to supply signals from 2 input ports to one output port. Thus, although they are set to be wavelength selective, they nevertheless provide good enough coupling in a frequency band that is sufficient for many applications. The coupler K can be made single-stage or multi-stage, for example as a taper and branch coupler. Other forms of coupler, such as a ring coupler, are not excluded. The coupler may also operate as a power splitter (in the opposite direction).
According to another embodiment of the present invention, the height h of the (first and/or second) conductive layerLS1、hLS2Is 10 mu m to 75 mu m.
This enables a thin arrangement which can also be integrated into the composite glass pane or can also be adapted to curved surfaces.
According to yet another embodiment of the present invention, the (first) conductive layer L1 is at least partially provided with a cover layer.
The cover layer may be, for example, a black print, so that a hidden part of the antenna ANT1 and/or the antenna ANT2 and/or the coupler K and/or the feed line FL may be provided without impairing the visual impression in other parts of the vehicle glazing 1.
In another embodiment of the present invention, antenna ANT1 or ANT2 is configured for receiving high frequency signals. In particular, the antenna structure may be configured for receiving mobile radio communication signals and/or signals of a (satellite-assisted) positioning system.
According to yet another embodiment of the invention, the connection region has an electromechanical high-frequency connection element. In particular, the high-frequency connection element may have an SMA interface. The SMA interface may, for example, have an angular arrangement such that a small build height is provided in the switch-on region. Typically, the vehicle glazing is equipped with electromechanical high frequency connection elements S as mounting/replacement parts to achieve quick mounting and reliable contact.
In another embodiment of the present invention, the (first and/or second) substrate GS1, GS2 is a glass substrate or a plastic substrate. Essentially all electrically insulating substrates are suitable as substrates that are thermally and chemically stable under the conditions of manufacture and use of the vehicle glazing of the invention.
The substrates GS1, GS2 preferably comprise 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.
This means that the invention can be incorporated into material systems which have proven advantageous.
In yet another embodiment of the present invention, the at least one conductive layer L1, L2 is applied on the dielectric foil F. In particular, the dielectric foil F may 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.
This means that for the foil F use can be made of a material which on the one hand is suitable during manufacture as a carrier for the antenna structures ANT1, ANT 2/coupler K/antenna wire FL on the conductive layers L1, L2 and which is optionally optically transparent and/or which can optionally be easily joined to the substrates GS1, GS 2.
In yet another embodiment of the invention, the foil F has a second electrically conductive layer L2 disposed on the opposite side of the first electrically conductive layer L1.
The conductive layer L2 has silver and/or copper and/or gold and/or aluminum and/or indium and/or graphene. It should be noted here that the conductive layers LS1, LS2 may have different materials. However, they are preferably of the same material. This means that the conductor structure can also be adapted to electrical and/or thermal and/or mechanical boundary conditions.
Thereby, for example, a strip conductor/waveguide structure may be provided in various implementations, for example as a grounded coplanar waveguide.
According to another embodiment of the invention said foil F is substantially permeable in the wavelength range 400 nm-700 nm.
Thereby not compromising the optical properties.
Without limiting the generality, other layers having optical and/or electrical properties may be applied on the foil and/or the conductive layer L1/L2.
In another embodiment of the invention, the vehicle glass pane 1 is a composite glass pane, wherein the vehicle glass pane 1 further has a second substrate GS2, wherein the foil F is introduced between the first substrate GS1 and the second substrate GS 2.
This means that the foil F can be introduced both on the outside of the glass pane and between the substrates GS1, GS2 of the composite glass pane.
According to another embodiment of the invention, a vehicle, in particular a land, sea, aviation or aerospace vehicle, is provided having a glass sheet 1 according to the invention.
According to yet another embodiment of the invention, the glazing unit 1 according to the invention is intended to receive signals for satellite-assisted navigation, in particular GNSS signals of the navigation satellites GPS, galileo, glonass, beidou, Navic, QZSS. Alternatively or additionally, the glass pane 1 of the invention is intended for receiving signals of a mobile communication system, in particular of a second, third, fourth or fifth generation mobile communication system.
This result is unexpected and surprising to those skilled in the art.
List of reference numerals
1 vehicle glazing
ANT1 antenna
ANT2 antenna
GS1 substrate
GS2 substrate
L1 conductive layer
L2 conductive layer
K coupler
F foil
FL antenna wire
hLS1 Height of the conductive layer
hLS2 Height of the conductive layer
F foil
hF The height of the foil.
Claims (15)
1. Vehicle glazing (1) having a substrate (GS1) and at least one electrically conductive layer (L1), wherein at least two antennas (ANT1, ANT2) are formed in the electrically conductive layer (L1), wherein furthermore at least one coupler (K) is formed in the electrically conductive layer (L1) by means of strip conductor technology, wherein furthermore an antenna conductor (FL) is formed in the electrically conductive layer (L1) which is connected to a connection region, wherein the coupler (K) is arranged between the antenna conductor (FL) and the antennas (ANT1, ANT2), wherein a delay line is arranged between one of the antennas (ANT1, ANT2) and the coupler (K), wherein the delay line is a λ/4 line, so that a circularly polarized signal can be received.
2. Vehicle glazing according to claim 1, characterised in that the coupler (K) is a directional coupler or a hybrid coupler.
3. Vehicle glazing according to claim 1 or 2, characterised in that the coupler (K) is a multistage directional coupler.
4. Vehicle glazing according to any of the preceding claims, characterised in that the height (h) of the conductive layer (h) isLS1、hLS2) Is 10 mu m to 75 mu m.
5. Vehicle glazing according to any of the preceding claims characterised in that the electrically conductive layer is at least partially provided with a cover layer.
6. Vehicle glazing according to any of the preceding claims, characterised in that the antenna (ANT1, ANT2) is configured for receiving high frequency signals.
7. Vehicle glazing according to any of the preceding claims characterised in that the contact area has an electromechanical high frequency connection element.
8. Vehicle glazing according to any of the preceding claims, characterised in that the substrate (GS1) is a glass or plastic substrate.
9. Vehicle glazing according to any of the preceding claims, characterised in that the at least one electrically conductive layer (L1) is applied on a dielectric foil (F).
10. Vehicle glazing according to claim 9, characterised in that the foil (F) has a second electrically conductive layer (L2) arranged on the opposite face of the first electrically conductive layer (L1).
11. Vehicle glazing according to claim 10, characterised in that the antenna wire (FL) is formed as a grounded coplanar waveguide.
12. Vehicle glazing according to any of the preceding claims 10 or 11 characterised in that the foil (F) is substantially transparent in the wavelength range 400 nm to 700 nm.
13. Vehicle glazing according to any of the preceding claims 10 to 12, characterised in that the vehicle glazing is a composite glazing, wherein the vehicle glazing further has a second substrate (GS2), wherein the foil (F) is introduced between the first substrate (GS1) and the second substrate (GS 2).
14. A vehicle having a vehicle glazing according to any preceding claim.
15. Use of a vehicle glazing according to any of the preceding claims 1 to 13 for receiving signals for satellite assisted navigation, in particular GNSS signals of the navigation satellites GPS, galileo, glonass, beidou, Navic, QZSS.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP19168371 | 2019-04-10 | ||
| EP19168371.3 | 2019-04-10 | ||
| PCT/EP2020/059349 WO2020207886A1 (en) | 2019-04-10 | 2020-04-02 | Vehicle pane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112074990A true CN112074990A (en) | 2020-12-11 |
Family
ID=66105036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202080000829.5A Pending CN112074990A (en) | 2019-04-10 | 2020-04-02 | Vehicle glazing |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN112074990A (en) |
| DE (1) | DE202020005487U1 (en) |
| WO (1) | WO2020207886A1 (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7675471B2 (en) | 2004-03-05 | 2010-03-09 | Delphi Technologies, Inc. | Vehicular glass-mount antenna and system |
| GB201223253D0 (en) * | 2012-12-21 | 2013-02-06 | Pilkington Group Ltd | Glazing |
| US8947307B2 (en) | 2012-12-21 | 2015-02-03 | Jebsee Electronics Co., Ltd. | Shark fin type car antenna assembly |
| CN111969336B (en) | 2014-05-06 | 2023-03-28 | 安波福技术有限公司 | Radar antenna assembly |
| US10381704B2 (en) | 2016-02-16 | 2019-08-13 | GM Global Technology Operations LLC | Embedded broadband glass coplanar waveguide coupler |
-
2020
- 2020-04-02 WO PCT/EP2020/059349 patent/WO2020207886A1/en active Application Filing
- 2020-04-02 DE DE202020005487.9U patent/DE202020005487U1/en active Active
- 2020-04-02 CN CN202080000829.5A patent/CN112074990A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020207886A1 (en) | 2020-10-15 |
| DE202020005487U1 (en) | 2021-06-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20201211 |