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WO1996031918A1 - Window-mounted antenna array with a high heat-transmission attenuation factor - Google Patents

Window-mounted antenna array with a high heat-transmission attenuation factor

Info

Publication number
WO1996031918A1
WO1996031918A1 PCT/DE1996/000572 DE9600572W WO9631918A1 WO 1996031918 A1 WO1996031918 A1 WO 1996031918A1 DE 9600572 W DE9600572 W DE 9600572W WO 9631918 A1 WO9631918 A1 WO 9631918A1
Authority
WO
Grant status
Application
Patent type
Prior art keywords
antenna
conductive
electrically
layer
glass
Prior art date
Application number
PCT/DE1996/000572
Other languages
German (de)
French (fr)
Inventor
Heinz Lindenmeier
Jochen Hopf
Leopold Reiter
Original Assignee
Fuba Automotive Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

Links

Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QAERIALS
    • H01Q21/00Aerial arrays or systems
    • H01Q21/28Combinations of substantially independent non-interacting aerial units or systems
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10009Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin characterized by the number, the constitution or treatment of glass sheets
    • B32B17/10036Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin characterized by the number, the constitution or treatment of glass sheets comprising two outer glass sheet
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10165Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin particular functional features of the laminated glazing
    • B32B17/10174Coatings of a metallic or dielectric material on a constituent layer of glass or polymer
    • B32B17/10183Coatings of a metallic or dielectric material on a constituent layer of glass or polymer being not continuous, e.g. in edge regions
    • B32B17/10192Coatings of a metallic or dielectric material on a constituent layer of glass or polymer being not continuous, e.g. in edge regions patterned in the form of columns or grids
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10165Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin particular functional features of the laminated glazing
    • B32B17/10376Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin particular functional features of the laminated glazing containing metal wires
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QAERIALS
    • H01Q1/00Details of, or arrangements associated with, aerials
    • H01Q1/12Supports; Mounting means
    • H01Q1/1271Supports; Mounting means for mounting on windscreens
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QAERIALS
    • H01Q1/00Details of, or arrangements associated with, aerials
    • H01Q1/52Means for reducing coupling between aerials; Means for reducing coupling between an aerial and another structure
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QAERIALS
    • H01Q15/00Devices for reflection, refraction, diffraction, or polarisation of waves radiated from an aerial, e.g. quasi-optical devices
    • H01Q15/0006Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices
    • H01Q15/0013Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices said selective devices working as frequency-selective reflecting surfaces, e.g. FSS, dichroic plates, surfaces being partly transmissive and reflective

Abstract

The invention concerns a window-pane antenna array with one or more conductors (3) or conductor structures (3) mounted on or in the window pane (1) for a multiplicity of antennae for various radio services. Extending over the glass in the light-transmitting area of the window aperture is an electrically conducting film (5) of suitable thickness. This thermal-radiation-attenuating film (5) is divided into a sufficiently large number of electrically conducting zones (12). These zones (12) are separated from each other by narrow electrically non-conducting strips (6) of width (b) which is at least three times the film thickness. All the dimensions of the electrically conducting zones (12) are electrically small enough in their operating-frequency range, at least in the vicinity of the antenna, so that, by connecting in series all the same capacitors thus formed between the electrically conducting zones (12), undesirable high-frequency coupling, due to the incorporation of the electrically conducting zones (12), between the antenna-conductor elements (3) and other conductor elements in their vicinity is kept sufficiently small, and the width (b) of the strips is small enough to ensure that the area covered by the thermal-transmission-attenuating film is maximized.

Description

Antenna assembly on a window with a high heat transmission attenuation

description

The invention relates to a window glass antenna device according to the preamble of claim 1. Such antennas find use on many of the window pane of a motor vehicle, which is surrounded by a metallic frame.

Antennas of this type are known from DEP 3315458, DEP 3410415 and DEP 4,406,240th In all antennas of this type are forming the antenna conductor as a wire-shaped conductor ausge¬ which are printed on the toughened safety glass, either or are introduced as a wire structures between the glass panes of a laminated safety glazing.

A drawback of such antenna windows, the heat radiation which enters the interior of the vehicle and this heating up. For this reason, transmission-reducing coatings were developed in the past, which can be single or multi-layered. Such a coating is particularly at high Trans¬ mission sdämpfung electrically often very low resistance and the surface resistance is often only a few ohms. Antenna conductors, which are applied to a glass plate coated in this way are greatly affected by the electrical connection or capacitive coupling hoch¬ more frequent with these conductive layer in its function by shielding and detuning.

In German Offenlegungsschrift DE 37 21 934 Al an automotive Glasfenster- antenna is proposed with a transparent conductive layer. Here, the main element of the antenna is formed by the transparent and electrically conductive film itself and applied evenly on the window glass. The serious disadvantage of this technique is the restriction which results in the design of the antenna conductor by the thin and thus highly lossy due to the edge effects layer, in particular even at frequencies in the UHF range. It can be designed exclusively planar antenna conductors einfachster structures so that in the interest of decoupling from each large distances (50mm) require between the antenna areas and their adjacent areas. Fine designed powerful Antennenstruk¬ structures, as for example in the UHF range and above are necessary can not be realized in this technology.

SUBSTITUTE SHEET For this reason, usually realized according to the prior art, the antenna conductor as a wire-shaped or formed by printed wires, often complex conductor structures. The two-dimensional application of a heat radiation-absorbing transmission electrically conductive layer then interfere with the antenna function. This is particularly true when the conductive layer is low.

In the European Offenlegungsschrift 0,358,090 is therefore proposed to make this conductive coating sufficiently high impedance so as not to greatly affect the function of the antennas on the window pane. For this reason, a surface resistance of 20 ohms is required. However, layers of such high resistance have a relatively low transmission loss for heat radiation.

The object of the invention is, therefore, to design with low impedance, the Wärmestrahlungstrans¬ mission absorbing electrically conductive coating, this such that the function of the antennas as little as possible to the window pane and in the heat radiation transmittance, a very high surface coverage is achieved.

This object is achieved with antennas according to the preamble of claim 1 by the characterizing part of this claim.

The invention is illustrated by way of example with reference to the drawings. These show:

Fig. 1: A wire-shaped dimensionally configured antenna for the LMS reception on the window glass of a vehicle separated by narrow horizontal strip 6 nieder¬ is resistive-coated portion surfaces 12 to the high-frequency decoupling of the antenna from the window frame 2 and a low impedance conductive layer 5 in the lower region of the light transmission area of ​​the window opening 14th

Fig. 2: LMS antenna as shown in Figure 1, in the rear window of a car with grounded high-frequency-heating conductors. 9.

Fig. 3: A surface fastener configured by printed circuit antenna 3 for receiving the LMS and areally designed Heizfeldantennen for FM reception with

SUBSTITUTE SHEET 6 separate electrically low-impedance coated by narrow and vertical strips

Partial surfaces 12 for high-frequency decoupling of the antennas to one another.

Fig. 4: LMKU- antenna as a wire-shaped antenna conductor 3 on or over a separate narrow by two-dimensionally extending strip 6 electrically low-conductive part surfaces 12 for high-frequency decoupling of the individual wire portions from each other.

Fig. 5: car window glass antenna device with a plurality of antennas throughout the light transmission region of the window opening 14 of electrically conductive quadra¬ schematically part surfaces 12 of eg about each 10 mm edge length and a strip width b of 0.2 mm at a thickness s of the conductive layer of s = 50 around.

FIG. 6 shows examples of the arrangement of the subdivided in electrically conductive part surfaces 12 electrically conductive layer 5 and the antenna conductor 3 a) on the same surface of a single pane b) in partial areas 12 divided electrically conductive layer 5 on the lichtdurchläs¬ sigen foil 4 in laminated glass, and the antenna conductor 3 on an outer glass surface Ib. c) as b), however, the antenna conductor 3 on an inner glass surface la.

Fig. 7: influence of the width b of a non-conductive strip 6 between two partial surfaces 12 of the layer thicknesses s of the capacity between the partial surfaces 12 as a function of b / s.

Fig. 8: Moderate high-frequency capacitive connection between the outer sides of the FEN sterscheibe by the two-dimensionally structured electrically conductive layer.

Fig. 1 shows an antenna arrangement according to the invention, which consists of a wire structure 3, as is known from the DEP 3,410,415 and has good reception characteristics in the low frequency range LMK in conjunction with the window opening 14 of conventional automobiles.

To the heat radiation dämpfen¬ de electrically conductive layer 5 in the LMS frequency range not to impair this antenna in their physical interaction, the required due to the heat transmission mitigation low-resistance coating is divided into partial surfaces 12, which with the aid of narrow non-conductive strips 6 of one another, , are arranged separated so that there is still practically the entire surface of the window opening 14 is covered with the electrically conductive layer 5, and with respect to the heat radiation transmission, a very high surface coverage is achieved.

SUBSTITUTE SHEET In the areas in which the narrow insulating strips 6 are provided, the originally continuous electrically conductive layer 5 so that the structured electrically conductive layer 10, as shown in Fig. L above and below the LMK antenna conductor 3 by 45 degrees hatched areas indicated. In the microscope shown in Figure 1 a section of the structured electrically conductive layer is shown enlarged 10th The electrically conductive part surfaces 12 then fill in the example of Figure 1 the form of strips the area between the strips 6 and have the transverse dimension d.

Due to the small width b of the non-conductive strips 6 of the uncovered permanent range with respect to the thermal insulation is insignificant. Important for the unaltered function of the antenna by introducing the electrically conductive layer 5 in regions, in the form of the structured electrically conductive layer 10 is to prevent dimensions of the partial surfaces 12, which the formation of electrical resonances at the operating frequencies of the antenna 3 or the antennas 3 avoid. The electrically conductive patterned layer 10 thus formed is thus high frequency transparent for the operating frequencies of the antenna, however, leaves the heat radiation attenuated only according therethrough.

Resonances in the surface portions 12 can be reliably avoided by the fact that none of their dimensions larger than lambda / 10 min. In a LMS antenna whose smallest Be¬ drive shaft length is about 50m, all the dimensions are small in comparison to lambda / 10 min.

Nevertheless, the faces 12 must have 3 sufficiently small in the vertical direction dimensions in the immediate vicinity of the antenna conductor so that contiguous electrically low-conductive between any point on one of the wire-shaped antenna conductor 3 and the metal frame 2, as well as located in the lower area of ​​the light transmission area of ​​the window opening 14 layer 5 (dotted area) are a plurality, but at least three non-conductive strip 6 is preferably formed approximately equidistant from each other, whereby the structured electrically conductive part surface 10 forms, with the aim that the capacitive coupling between the antenna conductors 3 and the metallic frame 2 and the contiguous low resistance conductive layer 5 is sufficiently small.

The heat protecting layer ends in the region of the black print 8, so that the Antennen¬ function not by contact with the optionally hochfrequenzbedämpfenden adhesive bead 7, which connects the window pane with the vehicle is impaired.

SUBSTITUTE SHEET In Fig. 2, the same LMK antenna as shown in FIG. 1, but in the rear window of a car, via grounded high-frequency-heating conductors 9 is arranged. A LMS antenna as shown in FIG. 1 and in FIG. 2, acts as a planar antenna, so that the low-resistance conductive layer 5 may be carried out as continuous or as part areas 12 with intervening non-conductive strips 6 between the two outer conductors 3 selectively. Significantly, it is therefore the electroconductive layer 5, thus the Wärme¬ protective layer to separate in the area of ​​the areally designed antenna by non-conductive strip 6 in the described manner, thereby again structured electrically conductive layer 10 is obtained. This raises the coupling between the antenna 3 of the LMK leitem antenna and the frame 2 and also the heating conductors 9 that form in this example, other conductor portions 13 on the vehicle window, to a large extent.

Fig. 3 shows a further development of the invention for higher frequencies at which the vehicle dimensions are not small compared to the wavelength. Here, a window glass antenna device according to the invention is observed with an overhead antenna for the LMS reception and including two antennas for FM reception, which are derived from the Heizfeldem. All of the antennas shown may be dimensionally configured selectively. The single-hatched areas indicate the separated again in this example by horizontal and vertical narrow strip 6 electrically low-coated partial faces 12 for high-frequency decoupling of the antennas to one another. In this example, a two-dimensionally structured electrically conducting layer 10 is used in the form of a lattice structure of narrow electrically non-conductive strips 6 of the inventive antenna arrangement.

The two-dimensional lattice structure gives effect on the permeability of these areas radio wave and the high frequency decoupling of the antennas with each other due to the sufficient high resistance of the resulting surface impedance which results even with very small widths b of the strip. 6 If the antenna behavior in wesent¬ union largely exclusively by the wire-shaped executed antenna conductors 3 be loaded right and er¬ hold the thermal insulation only little influence on the antenna performance, it is advantageous in a further embodiment of the invention, the areas indicated by dots in Fig to be provided. 3 with the two-dimensionally structured elek¬ trically conductive layer, ie by narrow horizontal and vertical strips 6 separate low-coated part surfaces 12 to also use for example in the region of the heating conductors. 9 This procedure is accordingly continue to the edges of the window frame 2, provided that the insulation can not be eliminated entirely due to the frequently applied there also insulating black print. 8

ERSATZBLÄTT is essential here and in all following explanations using the highest observed frequencies out that the increase in capacitance between the individual partial surfaces as the distance is relatively small from one another, that with decreasing strip width b, the capacitance increases between the part surfaces 12 only slightly at. This is exemplified from each other in Fig. 7 for two coplanar conductor surfaces of dimension d at a distance b.

The influence of the width b of a non-conductive strip 6 between two partial surfaces 12 of the layer thicknesses s thereby varies the capacitance between the part surfaces 12 as a function of b / s to not more than a factor of 2.5, when a ratio b / s of 2 does not fall below , This makes it possible, due to the smallness of the usual layer thickness of s <lOOμm even with a dimension of the surface portions d of only a few millimeters to realize for example 10, with which a degree of coverage with respect to the thermal insulation of more than 90% achieved a large ratio d / b becomes. The smallness of the strip width b is less limited in practice by the divergence of the capacitance as position by the certainty with regard to avoidance of contact bridges in the Her¬; Values ​​of b / s = 2 can be reliably achieved.

A disadvantage of the known continuous conductive layers in the vicinity of antennas is the fact that, particularly in small upper surface, these layers effective resistance R carrying large injected currents which bring losses and the layers have a shielding effect. The advantage of the invention is that the two-dimensional grid structure of the invention in contrast to the known continuous conductive layers resistant a planar capacitive reactive form, which is practically without loss. This causes, with sufficient high ohmigkeit compared to the characteristic impedance of free space (E / H = Zo = 377 ohms) to the neighborly disposed antennas only a slightly detuning in the frequency of action, which are included in the design of antennas in a simple manner with can.

A rough estimate is obtained for a square grid structure of the conductive patches with an edge length of 10 mm at b = 0, l mm at the frequency of 1GHz an upper surface reactance X of about 500 ohms and is at lower frequencies correspondingly high impedance. Therefore, a finer screening having about d = 5mm is preferable in the environment of antennas in the frequency range up to 2GHz. Therefore, the entire

SUBSTITUTE SHEET antenna array are covered by such a grid structure without shield the underlying antennas or vapor deposition. The allowed for the function of the antennas small width b of the non-conductive strips can both virtually perfect shielding of in comparison to the dimensions of the patches 12 short-wave heat radiation and the visual appearance of the window pane by wide strip 6 to be avoided.

The preparation of such patterned layers can in a known manner by applying the first homogeneous layer, for example with the aid of a conventional cathode - sputtering effected and the incorporation of the non-conductive strip 6, with the aid of a photosensitive resist and the usual photo-etching, or laser method or . Jonenstrahlätzung done.

Fig. 4 shows a wire-shaped antenna 3, as it is advantageously used for the LMKU range, for example, in vehicle windscreens. Such an antenna is known from the DEP 3,315,458th To the antenna insulation in their effect by the measures Wärme¬ not too strong to affect, it is necessary that per unit of length of the wire effective inductance or capacitance to substantially less than an order of magnitude to change. Further, it is necessary not to couple the individual circuit sections, for example, the horizontally extending conductor portion and the vertically extending portion through the insulative layer wärme¬ inadmissible. This is inventively achieved by two-dimensionally extending narrow strips which may be, for example, horizontally and vertically oriented again. This in turn results in a two-dimensionally structured electrically conductive layer 10th

This in turn results in a lattice structure, as characterized in Fig. 4 by the one-hatched area. Again, it is again necessary to make the width b of the nichtleiten¬ the strip 6 in relation to the width d of the conductive patches 12 as small as possible. With increasing number of divisions of the influence of the heat absorbing action is lowered to the antenna function. In this case, it is essential only secondarily, if the antenna conductor 3 is connected to the conductive patches 12 in galvanic contact, or is only capacitively coupled to said patches 12th

By dividing the conductive layer 5 in part surfaces 12, the shielding effect which would have a uniform continuous layer is canceled, so that only an electrical detuning effect of the antenna is effected when forming the non-conductive strip 6 which, when a sufficiently large number of strips 6 by

SUBSTITUTE SHEET slight change in the dimensions of the antenna conductor 3 or by Anpa߬ measures can be achieved in the antenna connection point eighteenth

often complex antenna systems with antenna diversity for FM and television, which include a plurality of antennas, mostly used for heated rear window panes are in modern vehicles. Fig. 5 shows an exemplary embodiment of such an antenna system on the rear window glass of a vehicle, as known from the DEP 4,406,240th Here, the terminals 18 represent end points of the antenna conductor 3 is as connection points for the FM and TV antennas. 17 of the assembly area indicates a radio antenna 15, which is mounted in the center of the window above.

In this case it is expedient moderately in a particularly advantageous embodiment of the invention to form the entire light transmission area with two-dimensionally structured electrically conductive layer 10th With a sufficiently small size d for a square executed structure, the influence of this structure on the behavior of up to 900 MHz working TV antennas is sufficiently small. Experiments with dimensions d = 10 mm and b = 0.2 mm have confirmed this.

In FIG. 6, some examples of the arrangement of the heat transmission damping electrically conductive layer 5 and its particular embodiment according to the invention as structured electrically conductive layer 10 and the antenna conductor 3 are shown. FIG. 6a shows the common application to one side of a single pane. In this case, the conductive patches with the antenna conductors are in galvanic contact.

It is more advantageous, as shown in Fig. 6c, 3 not to arrange the electrically conductive layer 5 and the electrically conductive patterned layer 10 and the antenna conductor on the same area, but on opposite surfaces, which for example through the thin transparent plastic film 4 are separated in the laminated glass. Thus, the very narrow galvanic coupling of the antenna conductor 3 is replaced with the sub-surfaces 12 by a less effective capacitive coupling and the detuning effect is thereby reduced.

This reduction is further increased in an arrangement shown in Fig. 6b by the greater distance, if the electrically conductive layer 5 or the structured electrically conductive layer 10 and the antenna conductors are mounted on different sides of a glass pane 3.

SUBSTITUTE SHEET A particular advantage of the present invention results from the fact that the structured heat-insulating layer 10 thus formed in their position must not take a certain position to the antenna conductors. This is especially true with sufficiently small dimensions d of the conductive patches 12. This results in the possibility of particularly simple manufacture in series production of antenna window panes.

For example, if the time allotted for the laminated glass manufacturing plastic film 4 having a grid structure according to the figures 4 and 5 applied to the left and the antenna conductor 3 as shown in Fig. 6b and c are printed on the window glass, the plastic film 4, in the preparation of the laminated glass between the discs without regard to the position of the grid with respect to the antenna conductor 3 are inserted. The manufacturing tolerances of the antenna characteristics which result in mass production by different layers of the grid to the antenna conductors 3 can be tolerated due to the fineness of the grid.

Experiments with a width d = 5 mm for square conductive portions with a width b * = 0, l mm for the non-conductive strips have confirmed up to 2 GHz for a window antenna system having antennas for the frequency range 100 kHz. This technique has the advantage that it can be applied regardless of the nature of the applied antennas. For example, the necessary for other reasons contiguous conductive area 11 may be printed in FIG. 5 as printed conductive surface on the window glass on the face of the antenna conductor, where it can act, for example as an electrical counterweight and as a grounded shielding against invading into the vehicle interior radio fields. A capacitive implementation of a high frequency radio signal from the interior of the vehicle out to a window pane on the externally mounted radio antenna 15 for its

Junction 18 by the so-structured heat-insulating layer through, is also possible with the embodiment shown in Fig. 8 arrangement. For this purpose, two mutually opposing conductive surfaces 17 are applied to the outer sides of the laminated glass pane, to which on the one hand the antenna and on the other side, for example, a high-frequency line is connected sixteenth

SUBSTITUTE SHEET

Claims

Claims:
1. window glass antenna device with on or in the Fen¬ sterscheibe (1) attached to the antenna conductor (3) or Anten¬ nenleitern (3) and the antenna conductor patterns (3) and the antenna conductor patterns (3) for a plurality of antennas for various radio services, characterized in that in the light transmission area of ​​the window opening (14) over the glass has a the ärmestrahlungstransmission absorbing electrically conductive layer (5) with a purpose notwendi¬ gen layer thickness (s) and these are the heat radiation transmission damping layer (5) in a sufficiently large number of electrically conductive surface portions (12) is divided, and these part surfaces (12) (b) are separated by narrow electrically non-conductive strips (6) of the width and the width (b) is at least 3 layer thicknesses (s) and the electrically conductive patches (12) at least in the vicinity of an antenna in its dimensions in the operating frequency range ele are so small ktrisch, so that by the multi-series connection of the small capacitances between the part surfaces (12) by introduction of these conductive patches (12) adverse high frequency even coupling between the Antennenleiter- share (3) and other conductor portions (13) in the vicinity thereof is made sufficiently small and the width (b) of the strips is chosen so small, that the largest possible area coverage degree with respect to the heat radiation transmission is achieved.
2. A glass antenna assembly of claim 1 insbe¬ sondere for use in a vehicle with a window pane (1), of a metallic Frame (2) is surrounded, with drahtför strength printed or formed by wires antenna conductors (3),
SUBSTITUTE SHEET characterized in that the dimensions of the electrically conductive patches (12) are designed in such a way that between each of the Lichttransmis¬ the window opening (14) sion area located point of a wire-shaped antenna conductor (3) of an antenna and the metallic frame (2) and, if applicable. each of the other non in the window opening befindli¬ chen conductor part (13) a plurality of said antenna, at least three non-conductive strips (6) preferably are formed approximately equidistant from each other with the aim that the capacitive
Coupling between the antenna conductor (3) and be metallized's frame (2) or, if necessary. Between this antenna conductor (3) and each of these antenna not belonging in the Fen¬ steröffnung (14) located conductor member (13) is small.
3. window glass antenna device according to claim 1 and 2, characterized in that preferably straight edged electrically conductive Teil¬ surfaces (12) which are in the vicinity of an antenna conductor (3) and are electrically connected with an antenna conductor are provided whose largest dimension is smaller than lambda / 10, the minimum operating wavelength of this antenna conductor so that resonance-like peaks of currents in each conductive part surface (12) are reliably prevented.
4. window glass antenna device according to claim 2, characterized in that the largest dimension of the electrically conductive patches (12) is chosen so small that both the inductance and the capacitance of the antenna conductor (3) and the antenna conductor (3) is substantially less than a
Order by the adjacent electrically conductive
Partial surfaces (12) is changed, and the antenna is designed according to the same principle of operation as in the absence of the heat radiation transmission damping electrically conductive layer (5). 5. A glass antenna arrangement according to claim 1 to 4 characterized by a plurality of antennas, characterized in that in the total light transmission area of ​​the window opening (14) electrically conductive square, rechteckför strength or lozenge-shaped part surfaces (12) having a maximum dimension of about 15 mm or less, and are a layer thickness (s) of less than 100 microns formed, which by the electrically non-conductive strips (6) of less than 0,
5 mm are separated from each other.
6. window glass antenna device according to claim 1 to 5, characterized in that a continuous conductive in the area of ​​an antenna, in which by a plurality of antenna conductors (3), a capacitive area acting An¬ is antenna structure modeled to support the flä¬ chenhaft capacitive effect , the heat radiation transmittance absorbing electrically conductive layer (5) is formed.
7. A glass antenna arrangement on a Einscheiben¬ glass or multi-pane of laminated glass according to claims 1 to 6, characterized in that the part in electrically conductive surfaces (12) divided, the heat radiation-absorbing electrically conductive transmission
Layer (5) and the antenna conductor (3) or the antennae on the same face of the pane (1) and, if necessary, the transpa¬ pensions loaded film (4) are applied.
8. A glass antenna arrangement on a Einscheiben¬ glass or multi-pane of laminated glass according to claims 1 to 6, characterized in that the electrically conductive surface portions (12) divided, the heat radiation transmittance absorbing electrically conductive layer (5) and the antenna conductor (3) or the antennas on respective opposite surfaces of a glass sheet (1) or, if necessary. various glass sheets (la, lb) or, if necessary. a pane of glass (1) and a
FRFATZBLATT transparent film (4) are applied a laminated glass pane.
9. window glass antenna device on multi-disc laminated glass having located between the film and the glass antenna conductor wires according to claims 1 to 6, characterized in that the electrically conductive surface portions (12) divided, the heat radiation transmittance absorbing electrically conductive layer (5) and the antenna conductor wires (3) on respective opposite faces of a light transmitting sheet (4) or, if necessary. various films (4) of the assembly or on the same surface of a sheet (4) are arranged.
10. A glass antenna arrangement on multi-plate Ver¬ laminated glass located with applied on the glass antenna conductors or between the transparent film and the glass antenna conductor wires according to claims 1 to 6, characterized in that the two-dimensionally in partial areas with small widths (b) of the insulating strip (6 ) subdivided, the transmission Wärmestrahlungs¬ absorbing electrically conductive layer (5) on the transparent foil (4) is applied and is incorporated in the production of glass-film composite without regard to the allocation to the antenna conductors (3).
11. A glass antenna arrangement with a mounted on the first outer side of the window glass antenna according to An¬ demanding 10, characterized in that for producing a capacitive high-frequency manner Ver¬ connection between the first and second outer side of the window pane by the two-dimensionally divided into sub-areas unter¬ electrically conductive is layer (5) through two opposing conductive surfaces (17) are formed on ange¬ wel¬ surface on the first outer side, the antenna and on the second outer side to be connected to the antenna terminal (18) closed.
^ BATZBLATT
12. A glass antenna device according to claim 10, characterized in that an antenna which an exclusively areally kapazi¬ tive effect trisch has in a region by a zusammenhän¬ quietly conductive, the heat radiation transmission damping elek¬ conductive layer (5) with antenna terminal (18) to this layer (5) is formed and the electrically conductive layer (5) outside this range tends lei¬ in separate partial areas (12) is divided.
SUBSTITUTE SHEET
PCT/DE1996/000572 1995-04-07 1996-04-01 Window-mounted antenna array with a high heat-transmission attenuation factor WO1996031918A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE19513263.7 1995-04-07
DE1995113263 DE19513263A1 (en) 1995-04-07 1995-04-07 Antenna assembly on a window with a high heat transmission attenuation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19960907319 EP0764350A1 (en) 1995-04-07 1996-04-01 Window-mounted antenna array with a high heat-transmission attenuation factor

Publications (1)

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WO1996031918A1 true true WO1996031918A1 (en) 1996-10-10

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PCT/DE1996/000572 WO1996031918A1 (en) 1995-04-07 1996-04-01 Window-mounted antenna array with a high heat-transmission attenuation factor

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EP (1) EP0764350A1 (en)
DE (1) DE19513263A1 (en)
WO (1) WO1996031918A1 (en)

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US6730389B2 (en) 2001-10-25 2004-05-04 Ppg Industries Ohio, Inc. Coated substrate having a frequency selective surface
US6891517B2 (en) 2003-04-08 2005-05-10 Ppg Industries Ohio, Inc. Conductive frequency selective surface utilizing arc and line elements
US7106262B2 (en) 2001-09-20 2006-09-12 Pilkington Automotive Deutschland Gmbh Double on-glass slot antenna
US7764239B2 (en) 2002-09-17 2010-07-27 Pilkington Automotive Deutschland Gmbh Antenna pane including coating having strip-like segmented surface portion
US8287039B2 (en) 2006-04-21 2012-10-16 Ts Tech Co., Ltd. Vehicle seat with a cushion adjustment mechanism
WO2016203730A1 (en) * 2015-06-15 2016-12-22 株式会社デンソー Transparent window plate provided with anti-fogging hot wires

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GB9813129D0 (en) * 1998-06-17 1998-08-19 Harada Ind Europ Limited Multiband vehicle screen antenna
DE19832228C2 (en) 1998-07-17 2002-05-08 Saint Gobain Sekurit D Gmbh An antenna glass for motor vehicles
US6670581B1 (en) 1999-05-20 2003-12-30 Glaverbel Automotive glazing panel having an electrically heatable solar control coating layer
WO2000072634A1 (en) * 1999-05-20 2000-11-30 Glaverbel An automotive glazing panelwith solar control coating comprising a data transmission window
EP1543581B1 (en) * 2002-09-17 2011-07-20 PILKINGTON Automotive Deutschland GmbH Antenna pane
DE102008039125A1 (en) * 2008-08-21 2010-03-04 Kathrein-Werke Kg Beam forming means for external and / or roof antennas on vehicles and associated antenna
US7868835B2 (en) 2008-09-02 2011-01-11 Kathrein-Werke Kg Beam shaping means for external and/or roof antennas on vehicles, and associated antenna
WO2010031428A1 (en) * 2008-09-17 2010-03-25 Agc Flat Glass Europe Sa Glass panel
WO2011141151A3 (en) * 2010-05-11 2012-03-22 Hirschmann Car Communication Gmbh Antennas in metallised window panes of a vehicle
DE102012010694A1 (en) * 2012-05-30 2012-11-08 Daimler Ag Antenna arrangement for vehicle, has electrically-conducting area forming counter weight for antenna and/or electrical mass for antenna amplifier, where area and antenna are arranged on or in vehicle pane
GB201320257D0 (en) * 2013-11-16 2014-01-01 Pilkington Group Ltd Glazing

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JPH0640752A (en) * 1992-04-17 1994-02-15 Central Glass Co Ltd Radio wave transmissive and heat ray reflecting glass for vehicle
DE19508042A1 (en) * 1994-03-07 1995-10-26 Nippon Sheet Glass Co Ltd Transparent, heat-reflecting coating for electrical radiation
EP0717459A1 (en) * 1994-12-08 1996-06-19 Robert Bosch Gmbh Metallized glass plate

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7106262B2 (en) 2001-09-20 2006-09-12 Pilkington Automotive Deutschland Gmbh Double on-glass slot antenna
US6730389B2 (en) 2001-10-25 2004-05-04 Ppg Industries Ohio, Inc. Coated substrate having a frequency selective surface
US7764239B2 (en) 2002-09-17 2010-07-27 Pilkington Automotive Deutschland Gmbh Antenna pane including coating having strip-like segmented surface portion
US6891517B2 (en) 2003-04-08 2005-05-10 Ppg Industries Ohio, Inc. Conductive frequency selective surface utilizing arc and line elements
US8287039B2 (en) 2006-04-21 2012-10-16 Ts Tech Co., Ltd. Vehicle seat with a cushion adjustment mechanism
WO2016203730A1 (en) * 2015-06-15 2016-12-22 株式会社デンソー Transparent window plate provided with anti-fogging hot wires

Also Published As

Publication number Publication date Type
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DE19513263A1 (en) 1996-10-10 application

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