CN112074988A - Vehicle glazing with antenna - Google Patents
Vehicle glazing with antenna Download PDFInfo
- Publication number
- CN112074988A CN112074988A CN202080000834.6A CN202080000834A CN112074988A CN 112074988 A CN112074988 A CN 112074988A CN 202080000834 A CN202080000834 A CN 202080000834A CN 112074988 A CN112074988 A CN 112074988A
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- CN
- China
- Prior art keywords
- conductive layer
- vehicle glazing
- antenna
- glazing according
- substrate
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- 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.)
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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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/201—Filters for transverse electromagnetic waves
- H01P1/203—Strip line filters
- H01P1/20327—Electromagnetic interstage coupling
- H01P1/20354—Non-comb or non-interdigital filters
- H01P1/20372—Hairpin resonators
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Details Of Aerials (AREA)
Abstract
The invention relates to a vehicle glazing (1) having an Antenna (ANT), comprising a substrate (GS1) and at least one electrically conductive layer (L1), wherein the at least one Antenna (ANT) is formed in the electrically conductive layer (L1), wherein furthermore at least one passive electrical filter (P) is formed in the electrically conductive layer (L1) by means of strip conductor technology, wherein furthermore an antenna line (FL) which is connected to a connection region is formed in the electrically conductive layer (L1), wherein the at least one passive electrical filter (P) is arranged between the antenna line (FL) and the Antenna (ANT), wherein the at least one electrically conductive layer (L1) is applied on a dielectric foil (F), wherein the foil (F) has a second electrically conductive layer (L2) which is arranged on the side opposite the first electrically conductive layer (L1), wherein this antenna line (FL) is formed as a grounded coplanar waveguide.
Description
The invention relates to a vehicle glazing with an antenna and to the use 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.
From WO 2018/041480 a1 a glass pane with a heating device is known, wherein parts of the heating device may act as antennas for receiving radio or mobile communication system signals.
Other systems involve receiving signals from a navigation system.
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.
In this case, it is also necessary in the case of the known systems to provide amplifier means in order to raise the received (high-frequency) signal to the necessary level for later processing. These amplifier devices are usually arranged directly after the antenna. In order to protect the amplifier arrangement from external signals and to prevent saturation of the amplifier, the signal provided by the antenna is filtered before amplification.
Such a filter is known, for example, from US patent US 1,781,469. Surface acoustic wave filters (english: surface acoustic wave) have recently been used. However, they have significant space requirements or are expensive. In addition, they have non-linear properties in some cases, which may negatively affect the desired signal. Another filter is known from US patent application US 2012/0182093 a 1. There, a metal strip is provided between the two ground layers in the insulating interlayer.
A typical GPS antenna is implemented as a flat antenna and usually as a patch antenna and is known, for example, from WO 00/22695 a1, DE 202006011919U 1 or DE 202010011837U 1. The flat metal antenna structure is arranged on one side of a printed circuit board or a ceramic carrier. A flat substrate is arranged on the opposite side as a ground plane. The antenna structure and the substrate are connected to the electrical receiving unit by electrical leads. 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 less aesthetically pleasing when arranged directly on the windscreen panel.
However, the amplifier device should be placed as close as possible to the antenna. However, since this has a certain space requirement, it cannot be easily arranged.
It is an object of the present invention to provide an improved vehicle glazing with an antenna, 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 with an antenna 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 one antenna is formed in the conductive layer. Furthermore, at least one passive electrical filter is formed in the electrically conductive layer by means of strip conductor technology. Furthermore, an antenna line is formed in the electrically conductive layer, which line is connected to the connection region, wherein the at least one passive electrical filter is arranged between the antenna line and the antenna.
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 a carrier for the antenna structure/filter/conductor structure during manufacture and which are optionally optically transparent and/or optionally readily bondable to the substrate can be used.
The foil has a second conductive layer disposed on an opposite side of the first conductive layer.
The antenna wires can thus be provided as grounded coplanar waveguides.
By means of the invention, hitherto expensive surface filters are transferred into 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 filter can be installed at any point between the antenna and the connection.
In one embodiment of the invention, the at least one filter has a high-pass characteristic.
This means that signals from frequency ranges below the desired frequency band can be selectively suppressed.
In one embodiment of the invention, the at least one filter has a low-pass characteristic.
This means that signals from frequency ranges higher than the desired frequency band can be selectively suppressed.
In yet another embodiment of the present invention, the at least one filter has a band pass characteristic.
This means that signals from frequency ranges outside the desired frequency band can be selectively suppressed.
According to 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 for example be a black print, so that a hidden part of the antenna and/or filter and/or feed line 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.
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 1 with an antenna ANT. 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 antenna ANT is formed in conductive layer L1.
Furthermore, at least one passive electrical filter P 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. The antenna wire FL may be connected to the amplifier module.
Here, the antenna ANT and/or the antenna wire FL and/or the at least one filter P may be formed in the conductive layer L1 by suitable methods, such as (ablative) laser structuring, (wet chemical) etching, etc., and/or parts of the conductive layer L1 may be applied by suitable printing methods, such as screen printing.
The at least one passive electrical filter P is arranged between the antenna wire FL and the antenna ANT.
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 it is possible to use a material which on the one hand is suitable as a carrier for the antenna structure/filter/antenna wire on the conductive layers L1, L2 during manufacture and which is optionally optically transparent and/or optionally readily bondable to the substrates GS1, GS 2.
The foil F has a second conductive layer L2 arranged on the opposite side of the first 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 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 can be provided in various implementations, for example as a so-called grounded coplanar waveguide (coplanar line). In particular, the antenna wire FL may be provided as a grounded coplanar waveguide (coplanar wire).
By means of the invention, hitherto expensive surface filters are transferred into 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 filter can be installed at any point between the antenna and the connection. The basic integration of the passive assembly in the receiving path is thereby transferred into the vehicle glazing. In a vehicle glazing, passive assemblies are protected from damage. In addition, early filtering of the received HF signal is advantageous, since interference from downstream amplifier devices can be avoided. It should be noted that the filter P may also be designed in multiple stages and may also be provided as a higher order filter. In particular, it is now also possible, with a suitable arrangement, to use filters which, although large in area, do not constitute a visual disturbance to the user, for example at the edge of the vehicle glazing 1 (for example below the black print) on account of the arrangement.
This means that a cost-effective integration is provided by the invention.
In one embodiment of the invention, the at least one filter P has a high-pass characteristic.
This means that signals from frequency ranges below the desired frequency band can be selectively suppressed.
In one embodiment of the invention, the at least one filter P has a low-pass characteristic.
This means that signals from frequency ranges higher than the desired frequency band can be selectively suppressed.
In yet another embodiment of the present invention, the at least one filter P has a band-pass characteristic.
This means that signals from frequency ranges outside the desired frequency band can be selectively suppressed.
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 ANT and/or the filter P 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 invention, the antenna ANT 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.
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
ANT antenna
GS1 substrate
GS2 substrate
L1 conductive layer
L2 conductive layer
P-passive electrical filter
F foil
FL antenna wire
hLS1 Height of the conductive layer
hLS2 Height of the conductive layer
hF Height of foil
F foil.
Claims (14)
1. Vehicle glazing (1) with an antenna, having a substrate (GS1) and at least one conductive layer (L1), wherein at least one Antenna (ANT) is formed in the conductive layer (L1), wherein in addition at least one passive electrical filter (P) is formed in the conductive layer (L1) by means of strip conductor technology, wherein in addition an antenna wire (FL) is formed in the conductive layer (L1) which is connected to a switch-on region, wherein the at least one passive electrical filter (P) is arranged between the antenna wire (FL) and the Antenna (ANT), wherein the at least one conductive layer (L1) is applied on a dielectric foil (F), wherein the antenna wire (FL) has a second conductive layer (L2) which is arranged on the side opposite the first conductive layer (L1), wherein this antenna wire (FL) is formed as a grounded coplanar waveguide.
2. Vehicle glazing according to claim 1, characterised in that the at least one filter (P) has a high-pass characteristic.
3. Vehicle glazing according to claim 1 or 2, characterised in that the at least one filter (P) has a low-pass characteristic.
4. Vehicle glazing according to any of the preceding claims, characterised in that the at least one filter (P) has a band-pass characteristic.
5. 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.
6. 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.
7. Vehicle glazing according to any of the preceding claims, characterised in that the Antenna (ANT) is configured for receiving high frequency signals.
8. Vehicle glazing according to any of the preceding claims characterised in that the contact area has an electromechanical high frequency connection element.
9. Vehicle glazing according to any of the preceding claims, characterised in that the substrate (GS1) is a glass or plastic substrate.
10. Vehicle glazing according to any of the preceding claims, characterised in that the foil (F) is substantially permeable in the wavelength range 400 nm-700 nm.
11. Vehicle glazing according to any of the preceding claims, 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).
12. Vehicle glazing according to claim 11, characterised in that the second substrate (GS2) is a glass or plastic substrate.
13. A vehicle having a vehicle glazing according to any preceding claim.
14. Use of a vehicle glazing according to any of the preceding claims 1 to 12 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 |
|---|---|---|---|
| EP19168369.7 | 2019-04-10 | ||
| EP19168369 | 2019-04-10 | ||
| PCT/EP2020/059348 WO2020207885A1 (en) | 2019-04-10 | 2020-04-02 | Vehicle window with antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112074988A true CN112074988A (en) | 2020-12-11 |
Family
ID=66105035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202080000834.6A Pending CN112074988A (en) | 2019-04-10 | 2020-04-02 | Vehicle glazing with antenna |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN112074988A (en) |
| DE (1) | DE202020005507U1 (en) |
| WO (1) | WO2020207885A1 (en) |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1781469A (en) | 1927-06-25 | 1930-11-11 | Bell Telephone Labor Inc | Wave filter |
| US4823140A (en) * | 1984-06-18 | 1989-04-18 | Asahi Glass Company Ltd. | Antenna device for a television receiver mounted on an automobile |
| FR2784506A1 (en) | 1998-10-12 | 2000-04-14 | Socapex Amphenol | Radio frequency patch antenna air dielectric construction having lower insulating metallised ground plane supporting post upper metallised insulating slab with upper peripheral zone electric field retention |
| US6483404B1 (en) * | 2001-08-20 | 2002-11-19 | Xytrans, Inc. | Millimeter wave filter for surface mount applications |
| JP3926291B2 (en) * | 2003-05-12 | 2007-06-06 | 株式会社東芝 | Band pass filter |
| DE202006011919U1 (en) | 2006-08-02 | 2006-10-19 | Fuba Automotive Gmbh & Co. Kg | Strip-line antenna e.g. patch antenna, has substrate structure whose base surface leads up to edges of the antenna and designed like frame, i.e. with centrical hollow, and metal layers consisting of metal foils |
| US20120182093A1 (en) | 2009-07-14 | 2012-07-19 | Saab Ab | Microwave filter |
| DE202010011837U1 (en) | 2010-08-26 | 2011-05-12 | Kathrein-Werke Kg | Ceramic patch antenna and ceramic patch antenna mounted on a printed circuit board |
| JP5575081B2 (en) * | 2011-09-29 | 2014-08-20 | 株式会社東芝 | Resonant element, high frequency filter, wireless system |
| US8947307B2 (en) | 2012-12-21 | 2015-02-03 | Jebsee Electronics Co., Ltd. | Shark fin type car antenna assembly |
| GB201223253D0 (en) * | 2012-12-21 | 2013-02-06 | Pilkington Group Ltd | Glazing |
| PL3508030T3 (en) | 2016-09-05 | 2021-01-25 | Saint-Gobain Glass France | Glass pane provided with an electrical heating assembly |
-
2020
- 2020-04-02 CN CN202080000834.6A patent/CN112074988A/en active Pending
- 2020-04-02 WO PCT/EP2020/059348 patent/WO2020207885A1/en active Application Filing
- 2020-04-02 DE DE202020005507.7U patent/DE202020005507U1/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| DE202020005507U1 (en) | 2021-06-24 |
| WO2020207885A1 (en) | 2020-10-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20201211 |
|
| WD01 | Invention patent application deemed withdrawn after publication |