JP6935804B2 - Windowpanes with antennas, windowpanes for vehicles with antennas and vehicles - Google Patents

Description

The present invention relates to a window glass with an antenna, a window glass for a vehicle with an antenna, and a vehicle.

It is common for vehicles to receive various broadcast waves such as terrestrial digital broadcasts, various radio broadcasts, and radio waves such as ITS (Intelligent Transport System). In such a situation, the role of the antenna that receives radio waves is important. In recent years, vehicle windowpanes with antennas that effectively acquire radio wave information by integrating an antenna and a vehicle windowpane and combining them with peripheral electronic components have become widespread. Such an antenna is superior in maintainability and durability to a general pole antenna, and can be reduced in weight. In addition, by integrating the antenna and the window glass for the vehicle, the protrusions are eliminated and the design of the vehicle is not impaired, so that the adoption is expanding as a means for realizing information communication.

As mentioned above, windowpanes for vehicles with antennas have excellent points, but the directivity of the antenna is affected by the surrounding metal body, and depending on the type of vehicle, the directivity can be set freely. There is a problem that it becomes difficult. It should be noted that such a problem also exists in a window glass with an antenna such as a building whose mounting target is not a vehicle.

Focusing on the above-mentioned problems, Patent Document 1 provides strong directivity in a certain direction without being affected by the metal part of the vehicle body even if the glass antenna is installed near the metal part of the vehicle body. It discloses a wideband high-frequency glass antenna for automobiles. In a glass antenna provided on the surface of a window glass of an automobile to transmit and receive radio waves in a high frequency band, an antenna wire provided near a metal part of the vehicle body and fed from one end close to the metal part of the vehicle body, and the antenna wire. The antenna wire is arranged in the vicinity of the antenna and includes a non-feeding wire for adjusting the frequency characteristics of the directivity and the reception sensitivity. The antenna wire includes a plurality of parallel conductor wires extending in parallel and one end of each of the parallel conductor wires. It is provided with a connecting conductor wire to be bonded.

Japanese Patent Application Laid-Open No. 2007-110390

The technique disclosed in Patent Document 1 adjusts the frequency characteristics of directivity and reception sensitivity by using a non-feeding wire even if the antenna is provided near the metal part of the vehicle body, and can be used in the horizontal direction or the desired elevation angle direction. The aim is to obtain a high-frequency glass antenna for automobiles that has directivity.

However, according to the configuration of Patent Document 1, it is necessary to mount an additional member such as a non-feeding wire on the glass, which may cause problems from the viewpoints of design freedom, manufacturing cost, aesthetics, and the like. Further, since the feeding element has frequency dependence, it is necessary to review the design according to the frequency of the radio wave received by the antenna, and it is expected that the design will take time and effort.

The present invention provides a windowpane with an antenna having excellent directivity, a windowpane for a vehicle with an antenna using the windowpane with an antenna, and a vehicle by a simple method.

The window glass with an antenna of the present invention includes a window glass having a first surface, a second surface facing the first surface, and a side surface connecting the first surface and the second surface, and the first surface. An antenna mounted on a mounting surface that is either a surface or the second surface and a conductive member attached to the side surface are provided, and one direction from the antenna to the side surface is defined. The first distance along the one direction from one end of the window glass to one end of the conductive member is the thickness of the window glass of the antenna with respect to the facing surface opposite to the mounting surface. It is different from the second distance from the virtual antenna obtained by projecting in the direction to one end of the window glass or one end of the conductive member.

In the window glass with an antenna according to one aspect of the present invention, at least a part of the edge portion has an inclined surface, and the conductive member is provided on the inclined surface.

In the window glass with an antenna according to one aspect of the present invention, the conductive member is provided over the first surface, the side surface, and the second surface, and the mounting surface and the mounting surface are described with reference to the side surface. The length at which the conductive members face each other is shorter than the length at which the facing surfaces and the conductive members face each other with respect to the side surface.

The window glass for a vehicle with an antenna of the present invention is composed of the above-mentioned window glass with an antenna in which the window glass is a window glass for a vehicle.

The vehicle window glass with an antenna according to one aspect of the present invention includes a first glass plate and a second glass plate to which the vehicle window glass is bonded to the first glass plate via an interlayer film. To be equipped with.

In the window glass for a vehicle with an antenna according to one aspect of the present invention, the side surface of the second glass plate and the interlayer film of the vehicle window glass 1 is more in plan view than the side surface of the first glass plate. By being located in the inner region, a stepped surface formed in a stepped shape is formed on the edge portion, and the conductive member is provided on at least a part of the stepped surface.

In the window glass for a vehicle with an antenna according to one aspect of the present invention, the first surface is the facing surface and is the outer surface of the vehicle, and the second surface is the mounting surface and is the inner surface of the vehicle. ..

The vehicle of the present invention has a vehicle window glass and a vehicle body, the vehicle window glass forms the vehicle window glass with an antenna described above, and the conductive member forms a part of the vehicle body. Constitute.

According to the present invention, it is possible to provide a window glass with an antenna having excellent directivity by a simple method of processing the edge portion of the window glass.

FIG. 1 is a perspective view of a vehicle window glass with an antenna (window glass with an antenna), (a) is a perspective view in a state where nothing is arranged around, and (b) is a metal frame arranged around. The perspective view in the state where it is not done is shown. 2A and 2B show a window glass for a vehicle with an antenna according to the present embodiment, FIG. 2A is a perspective view, FIG. 2B is a cross-sectional view, and FIG. 2C is a cross-sectional view showing a positional relationship between a side surface and an antenna. 3A and 3B are charts showing the gain of the antenna, FIG. 3A shows a chart of the example of FIG. 2B, and FIG. 3B shows a chart of the embodiment of FIG. 4 (a) to 4 (f) show cross-sectional views of a modified example of the edge of the window glass for a vehicle with an antenna provided with one window glass (window glass) for the vehicle. 5 (a) to 5 (f) show cross-sectional views of a modified example of the edge of the window glass for a vehicle with an antenna provided with the window glass for the vehicle made of laminated glass. 6 (a) to 6 (d) show the first distance and the second distance in the window glass for a vehicle with an antenna of FIGS. 4 (c), 4 (d), 4 (f), and 5 (e). The cross-sectional view which showed the distance of is shown.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. In the drawings for explaining the form, unless otherwise specified, the directions are the directions on the drawings, and the reference directions of each drawing correspond to the directions of symbols and numbers. Further, the directions such as parallel and right angle allow the deviation to the extent that the effect of the present invention is not impaired. Further, examples of the window glass for a vehicle to which the present invention can be applied include a windshield attached to the front portion of the vehicle. The window glass for the vehicle may be a rear glass attached to the rear portion of the vehicle, a side glass attached to the side portion of the vehicle, a roof glass attached to the ceiling portion of the vehicle, or the like.

FIG. 1 shows a general window glass for a vehicle with an antenna, and FIG. 1 (a) shows a perspective view of only the window glass for a vehicle with an antenna (window glass with an antenna) 10 in particular, and nothing is arranged around the window glass. The perspective view in the absence state is shown. The shape of the end of the window glass for a vehicle is U-shaped (U-shaped), that is, the shape of the side surface is parallel to the thickness direction of the window glass for a vehicle. The vehicle window glass 10 with an antenna is configured by arranging the antenna 3 on the vehicle window glass (window glass) 1. It should be noted that this example merely schematically shows the window glass 10 for a vehicle with an antenna, and does not show the shape actually used.

In an actual usage situation, the window glass 10 for a vehicle with an antenna is attached to a metal body of the vehicle. In FIG. 1 (b), assuming such an actual usage situation, a metal frame 5 made of metal is formed around a vehicle window glass 10 with an antenna having a vehicle window glass having the same shape as that in FIG. 1 (a). The perspective view of the arranged state is shown. The vehicle body is not limited to a metal member, and may be a conductive member such as a conductive resin or a resin having a conductive substance formed on the surface thereof.

High-frequency power is supplied to the antenna 3 from a feeding point (not shown), and the radio wave radiated from the antenna 3 propagates as a surface wave toward the edge of the vehicle window glass 1 and is incident on the edge (incident wave). ). Here, it is known that the reflected wave reflected at the edge portion overlaps with the incident wave from the antenna 3 to become a standing wave, which reduces the gain of the antenna. Further, since the radio wave component leaking from the edge to the outside of the glass is re-radiated by the metal housing such as the vehicle body at the edge, the antenna gain is reduced due to the interference with the antenna 3, and the directivity shape is greatly changed. There is a possibility of causing harmful effects such as causing.

In Patent Document 1, a non-feeding line is arranged in the vicinity of the feeding line (antenna line), and functions to adjust the directivity and the frequency characteristic of the receiving sensitivity. As a result, strong directivity is realized in the front direction of the vehicle.

However, the method of Patent Document 1 requires that an additional member such as a non-feeding wire is mounted on the glass, and has a problem from the viewpoint of design freedom and the like. Further, since the feeding element has frequency dependence, it is necessary to review the design according to the frequency of the radio wave received by the antenna, and it is expected that the design will take time and effort.

The inventor examined the above-mentioned problems and found that the above-mentioned problems could be easily solved by a simple method of applying a predetermined process to the edge of the window glass for a vehicle.

FIG. 2 shows a vehicle window glass 10 with an antenna according to an embodiment of the present invention. As shown in FIG. 2A, in the vehicle window glass 10 with an antenna of the embodiment, the edge portion (region of a predetermined distance D from the peripheral edge) 7 of the vehicle window glass 1 is cut diagonally to form a vehicle window. The side surface of the glass 1 defines the tapered surface 7a. Then, as shown in FIG. 2B, a metal member (conductive member) 11 having a triangular cross section is arranged on the tapered surface 7a via an adhesive.

The vehicle window glass 1 has a first surface 1A, which is one main surface, and a second surface 1B, which is another main surface facing the first surface 1A. The first surface 1A is attached so as to face the outside of the vehicle, and the second surface 1B faces the inside (indoor side) of the vehicle. The antenna 3 is provided on the second surface 1B, and in this example, the second surface 1B is the mounting surface of the antenna 3. The second tapered surface 7a is formed so as to be inclined outward in the plan view of the vehicle window glass 1 in the direction from the second surface 1B to the first surface 1A of the vehicle window glass 1.

In such a configuration, as shown in FIG. 2B, radio waves from the antenna 3 propagating inside the vehicle window glass 1 as surface waves E1 and heading toward the edge 7 are incident on the tapered surface 7a. At the same time, it is reflected by the tapered surface 7a and the metal member 11 provided on the tapered surface 7a.

The tapered surface 7a is formed so as to incline outward in the direction from the second surface 1B to the first surface 1A. Therefore, the reflected radio wave is reflected in the direction from the second surface 1B to the first surface 1A. Then, the reflected radio wave is radiated as a radiated wave E2 to the outside of the vehicle window glass 1. This radiated wave E2 has a preferable directivity because it is radiated from the first surface 1A of the window glass 1 for the vehicle toward the outside of the vehicle in a direction close to the vertical direction from the first surface 1A.

FIG. 2C is a cross-sectional view showing the structure of the window glass 1 for a vehicle that exerts such an action, particularly the positional relationship between the side surface 7a (tapered surface 7a in this example) and the antenna 3 at the edge portion. In this embodiment, any one direction from the antenna 3 toward the side surface 7a is defined. Here, the first distance A is obtained based on the distance along this one direction from the antenna 3 to one end of the vehicle window glass 1 or one end of the metal member 11.

Further, by projecting the antenna 3 in the thickness direction of the vehicle window glass 1, the virtual antenna is formed on the opposite surface (first surface 1A in this example) opposite to the mounting surface (second surface 1B in this example). 3a is obtained. Here, the second distance B is obtained based on the distance along this one direction from such a virtual antenna 3a to one end of the vehicle window glass 1 or one end of the metal member 11. That is, in the present embodiment, the one direction is the direction along the lines of the first distance A and the second distance B on the drawing.

In the vehicle window glass 1 of the vehicle window glass 10 with an antenna of the present invention, the first distance A and the second distance B described above are different (A ≠ B). As a result, a preferable radiated wave E2 radiated toward the outside of the vehicle can be obtained. In particular, in the present embodiment, the second distance B is larger than the first distance A (A <B).

That is, the metal member 11 and the side surface (tapered surface) 7a of the present embodiment have an action of propagating the radio waves transmitted from the antenna 3 to the side of one main surface of the vehicle window glass 1.

3A and 3B are charts showing the simulation results of the directivity in the elevation angle direction (in-plane direction in the drawing) when the antenna 3 is viewed sideways. The FDTD (Finite-difference time-domain) method was used for the simulation. The solid line shows a chart of a sample in which the antenna 3 is directly (without a gap) provided on the vehicle window glass 1 by a method such as printing, and the broken line indicates a predetermined interval (here, 5 mm) on the vehicle window glass 1. The chart of the sample provided with the antenna 3 is shown. The unit of gain is dB. The input voltage to the antenna 3 is set to 1 V, and the directivity frequency is set to 5.8 GHz.

FIG. 3A shows a chart of the window glass 10 for a vehicle with an antenna of FIG. 1B. As is clear from this figure, it is understood that both the solid line and the broken line have disordered directivity, and good directivity is not obtained.

On the other hand, FIG. 3B shows a chart of the window glass 10 for a vehicle with an antenna according to the embodiment of FIG. As is clear from this figure, both the solid line and the broken line have little disturbance in the directivity of the gain, and have a particularly strong directivity toward the lower side of the chart. It can be understood that good antenna characteristics can be obtained by attaching the window glass 10 for a vehicle with an antenna to the vehicle so that the lower side of the chart faces the outside of the vehicle as in the example of FIG. 2B. ..

The method for manufacturing the window glass 1 for a vehicle includes a float method, a fusion method, and the like, but is not particularly limited. Further, as an example of the composition of the glass plate used in the window glass 1 for a vehicle, the composition expressed in mol% based on the oxide, SiO ₂ is 50 to 80%, B ₂ O ₃ is 0 to 10%, and so on. Al ₂ O ₃ is 0.1 to 25%, Li ₂ O + Na ₂ O + K ₂ O is 3 to 30%, MgO is 0 to 25%, CaO is 0 to 25%, SrO is 0 to 5%, and BaO is 0 to 0. Examples thereof include glass containing 5%, 0 to 5% of ZrO ₂ and 0 to 5% of SnO _{2, but are not particularly limited.} The glass plate may be an acrylic plate or a polycarbonate plate which is organic glass.

The antenna 3 of the present embodiment is a linear antenna made of metal, but the size, shape, type, etc. of the antenna to be attached are not particularly limited, and the arrangement position on the window glass 1 for a vehicle is not particularly limited.

The method of attaching the antenna 3 to the vehicle window glass 1 is also not particularly limited. For example, the antenna 3 can be directly formed on the vehicle window glass 1 by printing metal, sputtering, or the like on the vehicle window glass 1. Further, it may be configured by attaching a metal member as an antenna 3 to the window glass 1 for a vehicle with an adhesive or the like.

4 (a) to 4 (f) are cross-sectional views of a vehicle window glass 10 with an antenna including a vehicle window glass 1 made of a single glass plate, and various modifications of the edges thereof. show. In each example, the vehicle is attached so that the upper surface side faces the inside of the vehicle and the lower surface side faces the outside of the vehicle.

FIG. 4 (a) is the same example as in FIG. 2 (b). FIG. 4B shows an example in which the resin member 13 is provided on the outside of the metal member 11 of FIG. 4A, and the mountability to the vehicle body is improved. FIG. 4C shows an example in which a thin film-shaped metal member 11 is provided on the tapered surface 7a, unlike the block-shaped metal member 11 as shown in FIG. 4A.

In the above example, the tapered surface 7a is formed so as to reach the first surface 1A from the second surface 1B of the vehicle window glass 1. In FIGS. 4 (d) and 4 (e), the tapered surface 7a is not formed so as to reach the first surface 1A, but is formed halfway of the side surface 1C connecting the second surface 1B and the first surface 1A. Here is an example. Although the metal member 11 of FIG. 4 (d) has a film shape, the metal member 11 of FIG. 4 (e) has a triangular cross-sectional shape similar to that of FIG. 4 (a).

In the example of FIG. 4 (f), the tapered surface 7a is not formed on the vehicle window glass 1. Instead, a metal member 11 is provided at the edge portion 7 along the edge portion 7 over the first surface 1A, the side surface 1C, and the second surface 1B of the vehicle window glass 1. Further, the length L2 at which the mounting surface ( second surface 1B ) of the antenna 3 and the metal member 11 face each other with respect to the side surface 1C is such that the facing surface ( first surface 1A ) and the metal member 11 face each other with respect to the side surface 1C. It is longer than the length L1 (L1> L2). As a result, as shown in FIG. 4 (f), a pseudo tapered surface 7a is formed on the edge portion 7, and the same effect as the above-described example can be obtained.

5 (a) to 5 (f) are different from FIGS. 4 (a) to 4 (f), and are vehicle windowpanes 10 with an antenna including a vehicle windowpane 1 made of laminated glass. A cross-sectional view of various modifications of the edge is shown. In this example, the laminated glass constituting the window glass 1 for a vehicle is interposed between the first glass plate 1a, the second glass plate 1c, the first glass plate 1a, and the second glass plate 1c. It is provided with an interlayer film 1b to be formed. That is, the second glass plate 1c is bonded to the first glass plate 1a via the interlayer film 1b. The first glass plate 1a is on the outside of the vehicle, and the second glass plate 1c is on the inside of the vehicle.

The composition of the interlayer film 1b may be one generally used for conventional laminated glass for vehicles, and for example, polyvinyl butyral (PVB), ethylene vinyl acetal (EVA), or the like can be used. Further, a thermosetting resin that is liquid before heating may be used. That is, the interlayer film 1b may be in a layered state when it is made of laminated glass, and the interlayer film 23 may be in a liquid state before joining the first glass plate 1a and the second glass plate 1c.

FIG. 5 shows a cross-sectional view of various modifications of the edge portion of the window glass 1 for a vehicle, which is a laminated glass.
FIG. 5A shows an example in which the tapered surface 7a is formed on the edge portion 7 as in FIGS. 4A to 4E. FIG. 5B is a step formed in a stepped shape so as to expand from the second surface 1B to the first surface 1A at the edge portion 7 by utilizing the property of the laminated glass which is a laminated body of a plurality of layers. The surface 7b is formed. That is, the side surfaces of the second glass plate 1c and the interlayer film 1b are located in the inner region of the vehicle window glass 1 in a plan view with respect to the side surfaces of the first glass plate 1a. A stepped metal member 11 is formed on the side surfaces of the first glass plate 1a, the interlayer film 1b, and the second glass plate 1c. Further, the metal member 11 is also formed on one exposed main surface 1a1 of the first glass plate 1a.

In the example of FIG. 5B, although it is not a tapered surface, the stepped metal member 11 is provided on the stepped surface 7b formed in a stepped shape so as to expand from the second surface 1B toward the first surface 1A. Has been done. As a result, the metal member 11 and the stepped surface 7b have an action of propagating the radio waves transmitted from the antenna 3 toward the first surface 1A of the vehicle window glass 1.

FIG. 5C shows an example in which the resin member 13 is further provided to increase the strength with respect to the example of FIG. 5B. FIG. 5D shows an example in which the combination of the metal member 11 and the resin member 13 is formed first and then attached to the edge of the vehicle window glass 1.

FIG. 5 (e) shows an example in which the metal member 11 is formed only on the side surface of the second glass plate 1c, and FIG. 5 (f) shows an example in which the metal member 11 is formed on the side surface of the second glass plate 1c and the interlayer film 1b. An example is shown in which only the glass is formed. Even with such a simple structure, the metal member 11 and the stepped surface 7b have an effect of propagating the radio waves transmitted from the antenna 3 toward the first surface 1A of the vehicle window glass 1. That is, by providing the metal member 11 on at least a part of the stepped surface 7b, the metal member 11 has an action of propagating the radio wave transmitted from the antenna 3 to the side of the first surface 1A of the vehicle window glass 1. ..

6 (a) to 6 (d) show the first distance A in the window glass 10 for a vehicle with an antenna shown in FIGS. 4 (c), 4 (d), 4 (f), and 5 (e), respectively. It is a cross-sectional view which showed and the 2nd distance B. In each example, the first distance A and the second distance B are obtained as shown in this figure. In FIGS. 6A to 6D, the first distance A is obtained based on the distance from the antenna 3 to one end of the metal member 11. Further, in FIGS. 6A and 6C, the second distance B is obtained based on the distance from the antenna 3 to one end of the metal member 11. In FIGS. 6B and 6D, the second distance B is obtained based on the distance from the antenna 3 to one end of the vehicle window glass 1. As described above, the start point of the first distance A and the second distance B is the antenna 3, but the end point is one end of the metal member 11 when the metal member 11 is present at the edge of the vehicle window glass 1. If the metal member 11 does not exist, it becomes one end of the vehicle window glass 1.

A first distance A and a second distance B are determined along any one direction from the antenna 3 to the side surface 7a. In the above-described embodiment, this one direction is defined by the direction parallel to the side of the vehicle window glass 1, but the method of defining the one direction is not particularly limited. If the first distance A and the second distance B can be evaluated correctly, the direction is not necessarily limited to the direction parallel to the side of the vehicle window glass 1.

In the above-described embodiment, the first surface 1A is attached to the vehicle so as to be an opposite surface and an outer surface of the vehicle, and the second surface 1B is an attachment surface to be an inner surface of the vehicle. In this way, it is preferable to install the window glass 10 for a vehicle with an antenna in the vehicle so that the antenna 3 is provided inside the vehicle (the mounting surface is inside the vehicle). Of course, this is not essential, and the antenna 3 may be provided outside the vehicle (the mounting surface is inside the vehicle). Further, the antenna 3 may be provided inside the vehicle window glass 1 in the thickness direction, that is, the antenna 3 may be embedded in the vehicle window glass 1. In the example of FIG. 6D, the antenna 3 is embedded in the surface of the second glass plate 1c, but the first glass plate 1a or the second glass plate so that the antenna 3 is in contact with the interlayer film 1b. It may be embedded in 1c.

Further, assuming a situation in which the window glass 1 for a vehicle is installed on the vehicle body of the vehicle, the metal member (conductive member) 11 is considered to correspond to a member constituting a part of the vehicle body. The present invention also includes a vehicle provided with a vehicle window glass 10 with an antenna. In the above-described embodiment, the conductive member is the metal member 11, but it does not have to be a metal as long as it is a member having a predetermined conductivity.

The processing of the edge portion as described above (formation of the tapered surface and the stepped surface and arrangement of the conductive member) may be performed on at least a part of the edge portion of the vehicle window glass 1. Further, the tapered surface can be regarded as a mere inclined surface, and it can be grasped that the side surface constitutes the inclined surface. The inclination here is not limited to a linear shape such as a straight line or a curved line, but may be a stepped shape. Further, the side surface on which the inclined surface is provided may be at least one side surface (edge portion) of the vehicle window glass 1, that is, either the left or right (or upper and lower) side surface (edge portion) has the inclined surface. Just do it. Of course, an inclined surface may be provided over the entire circumference (all edges) of the vehicle window glass 1. Further, by processing the edge of the side closest to the antenna 3, the desired effect can be easily obtained.

In the above-described embodiment, the window glass for a vehicle and the window glass for a vehicle with an antenna have been described. However, the object to which the present invention is applied may be a window glass (for example, a building window glass) and an antenna-equipped window glass (for example, an antenna-equipped building window glass) for which the attachment target is a building or the like that is not a vehicle. .. Setting the proper antenna directivity is an important issue even for this type of window glass.

The present invention is not limited to the above-described embodiment, and can be appropriately modified, improved, and the like. In addition, the material, shape, size, numerical value, form, number, arrangement location, etc. of each component in the above-described embodiment are arbitrary and are not limited as long as the present invention can be achieved.

This application claims priority based on Japanese Patent Application No. 2016-256750 filed with the Japan Patent Office on December 28, 2016, and the entire contents of Japanese Patent Application No. 2016-256750 are incorporated into this application. ..

INDUSTRIAL APPLICABILITY The present invention makes it possible to provide a window glass with an antenna having excellent directivity by a simple method of processing the edge of the window glass, without impairing the design of vehicles, buildings, etc., and easily. It is possible to achieve reception of various broadcast waves.

1 Vehicle window glass (window glass)
3 Antenna 7 Edge 7a Side surface (tapered surface; inclined surface)
10 Window glass for vehicles with antenna (window glass with antenna)
11 Metal member (conductive member)

Claims (16)

A window glass having a first surface which is a main surface, a second surface which is another main surface facing the first surface, and a side surface connecting the first surface and the second surface.
An antenna attached to the mounting surface is prior Symbol second surface,
With the conductive member attached to the side surface,
With
One direction is defined , which is an arbitrary direction from the antenna to the side surface along the mounting surface.
The first distance along the one direction from the antenna to one end of the window glass or one end of the conductive member is
One end of the window glass or one end of the conductive member from a virtual antenna obtained by projecting the antenna in the thickness direction of the window glass with respect to the facing surface which is the first surface opposite to the mounting surface. A windowpane with an antenna that differs from the one direction and the second distance along the facing surface. The window glass with an antenna according to claim 1, wherein the second distance is larger than the first distance. The window glass with an antenna according to claim 1 or 2 , wherein at least a part of the side surface has an inclined surface, and the conductive member is provided on the inclined surface. The window glass with an antenna according to claim 3, wherein the conductive member having a triangular cross section is arranged on the inclined surface. The window glass with an antenna according to claim 3, wherein the conductive member in the form of a film is arranged on the inclined surface. The window glass with an antenna according to any one of claims 3 to 5, wherein the inclined surface is formed so as to reach the facing surface from the mounting surface. The window glass with an antenna according to any one of claims 3 to 5, wherein the inclined surface is formed from the mounting surface to the middle of the side surface. The conductive member is provided over the first surface, the side surface, and the second surface.
The length of the conductive member along the one direction on the mounting surface side with respect to the side surface is greater than the length of the conductive member along the one direction on the facing surface side with reference to the side surface. The windowpane with an antenna according to claim 1 or 2 , which is also long. The window glass with an antenna according to any one of claims 1 to 8, wherein the one direction is a direction parallel to the side of the window glass. A vehicle window glass having an antenna, wherein the window glass is a vehicle window glass, and the window glass having an antenna according to any one of claims 1 to 9. The window glass for a vehicle with an antenna according to claim 10 , wherein the window glass for a vehicle includes a first glass plate and a second glass plate that is bonded to the first glass plate via an interlayer film. .. The second glass plate and the side surface of the interlayer film are located in the inner region of the vehicle window glass in a plan view with respect to the side surface of the first glass plate, so that the second glass plate and the side surface of the interlayer film are formed in a stepped shape. The surface is formed,
The window glass for a vehicle with an antenna according to claim 11 , wherein the conductive member is provided on at least a part of the stepped surface. The window glass for a vehicle with an antenna according to claim 12, wherein the conductive member is formed only on the side surface of the second glass plate. The window glass for a vehicle with an antenna according to claim 12, wherein the conductive member is formed only on the side surface of the second glass plate and the interlayer film. The antenna according to any one of claims 10 to 14 , wherein the first surface is the facing surface and is the outer surface of the vehicle, and the second surface is the mounting surface and is the inner surface of the vehicle. Window glass for vehicles with. It has a window glass for vehicles and a car body,
The vehicle window glass forms the vehicle window glass with an antenna according to any one of claims 10 to 14.
The conductive member is a vehicle that constitutes a part of the vehicle body.

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