WO2016190064A1 - Vitre de véhicule et antenne de vitre pour radiodiffusion audionumérique - Google Patents

Vitre de véhicule et antenne de vitre pour radiodiffusion audionumérique Download PDF

Info

Publication number
WO2016190064A1
WO2016190064A1 PCT/JP2016/063637 JP2016063637W WO2016190064A1 WO 2016190064 A1 WO2016190064 A1 WO 2016190064A1 JP 2016063637 W JP2016063637 W JP 2016063637W WO 2016190064 A1 WO2016190064 A1 WO 2016190064A1
Authority
WO
WIPO (PCT)
Prior art keywords
dab
glass
defogger
antenna
vertical
Prior art date
Application number
PCT/JP2016/063637
Other languages
English (en)
Japanese (ja)
Inventor
大介 新井
浩成 森下
徳田　健己
浩輔 田中
Original Assignee
日本板硝子株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 日本板硝子株式会社 filed Critical 日本板硝子株式会社
Priority to JP2017520592A priority Critical patent/JPWO2016190064A1/ja
Priority to EP16799772.5A priority patent/EP3300168A4/fr
Publication of WO2016190064A1 publication Critical patent/WO2016190064A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/1271—Supports; Mounting means for mounting on windscreens
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/1271—Supports; Mounting means for mounting on windscreens
    • H01Q1/1278—Supports; Mounting means for mounting on windscreens in association with heating wires or layers

Definitions

  • the present invention relates to a vehicle window glass and a DAB glass antenna.
  • a defogger for removing condensation or icing, an antenna for receiving predetermined radio waves, and the like may be provided on the surface of a vehicle window glass (particularly, rear glass) attached to an automobile.
  • a vehicle window glass provided with a glass antenna for receiving DAB (Digital Audio Broadcasting, hereinafter referred to as “DAB”) broadcast together with a defogger.
  • DAB Digital Audio Broadcasting
  • a glass antenna having a certain length in the vertical direction is provided.
  • the range in which the glass antenna can be arranged is narrowed by the range occupied by the defogger. Therefore, the length in the vertical direction in which the glass antenna can be disposed is limited, and it has been difficult to provide a glass antenna that can receive DAB broadcast that is vertically polarized with high sensitivity.
  • the rear glass has a relatively small glass area in a car model in which the rear glass mounting angle is nearly vertical or relatively large like a hatchback type car. Therefore, when the defogger and the glass antenna are provided on the rear glass, the range in which the glass antenna can be arranged is very limited, and it is difficult to provide a glass antenna capable of receiving DAB broadcasting with high sensitivity. It was.
  • the present invention has been made in view of such a situation, and an object thereof is to provide a technique capable of improving the reception performance of DAB broadcasting.
  • the present invention adopts the following configuration in order to solve the above-described problems.
  • the vehicle window glass according to one aspect of the present invention includes a glass plate and a DAB glass antenna formed on any surface of the glass plate, and the DAB glass antenna is the glass plate. It has the electric power feeding part arrange
  • the antenna is installed in a high place rather than in a low place, and the antenna is less affected by obstacles. Therefore, conventionally, the DAB glass antenna has been arranged on the upper side of the window glass.
  • the inventors of the present invention are more sensitive to the DAB glass antenna than the DAB glass antenna disposed on the upper side of the glass plate. I found out that it would improve. Therefore, in this configuration, the DAB glass antenna is arranged on the lower side of the window glass by arranging the feeding portion of the DAB glass antenna on the lower side of the glass plate. Therefore, according to the said structure, the DAB broadcast reception performance can be improved by arranging the DAB glass antenna on the lower side of the window glass.
  • the first element may extend upward in the vertical direction from the power feeding unit. According to the said structure, since the 1st element is directly connected to an electric power feeding part, the dimension of the whole DAB glass antenna can be made compact.
  • the window glass includes a pair of opposing busbar portions, and a plurality of hot wire portions extending in the horizontal direction and arranged in the vertical direction, both end portions thereof.
  • the defogger may be disposed above the DAB glass antenna, and the DAB glass antenna may further include a second element extending in a horizontal direction and connected to the first element.
  • the DAB glass antenna with the second element extending in the horizontal direction by providing the DAB glass antenna with the second element extending in the horizontal direction, the vertical length of the DAB glass antenna can be suppressed while maintaining the DAB broadcast reception performance. Therefore, according to the said structure, the glass antenna for DAB with which reception performance was ensured can be provided in the window glass which provided the defogger.
  • the defogger may further include one or a plurality of vertical line portions extending in a vertical direction so as to intersect with each of the plurality of heat ray portions.
  • the present inventors have found that the sensitivity of the DAB glass antenna is improved by providing the defogger with a vertical line portion. Therefore, according to the said structure, the receiving performance of DAB broadcasting can be improved by providing a defogger with one or a plurality of vertical filaments.
  • the window glass may be arranged so that a standing wave is not generated in the defogger by radio waves in the DAB frequency band.
  • the inventors of the present invention have found that depending on the arrangement of the vertical strips, a standing wave of the radio wave is generated in the defogger by radio waves in the DAB frequency band, and the sensitivity of the DAB glass antenna is lowered. Therefore, according to the said structure, it can prevent that the sensitivity of the glass antenna for DAB falls, and can improve the reception performance of DAB broadcasting.
  • the defogger may be arranged so as to be separated from the upper end of the DAB glass antenna by 46 mm or more in the vertical direction.
  • the present inventors found that when the DAB glass antenna is brought closer to the range of less than 46 mm from the defogger (particularly when there is no vertical line), the sensitivity of the DAB glass antenna is lowered by the interference of the defogger. I found it. Therefore, in this configuration, the DAB glass antenna is separated from the defogger by 46 mm or more by disposing the defogger so as to be 46 mm or more away from the upper end of the DAB glass antenna in the vertical direction. Therefore, according to the configuration, the DAB broadcast reception performance can be improved by separating the DAB glass antenna by 46 mm or more from the defogger.
  • the first element of the DAB glass antenna may have a vertical length of 20 mm or more.
  • the range in which the glass antenna is provided may be limited, for example, by providing a defogger.
  • the vertical length of the DAB glass antenna cannot be formed to a desired length.
  • the present inventors have found that the DAB broadcast reception performance can be maintained if the length of the DAB glass antenna in the vertical direction is 20 mm or more. Therefore, according to this configuration, the DAB broadcast reception performance can be maintained while shortening the vertical length of the DAB glass antenna.
  • the window glass for a vehicle shines parallel light on the window glass from the horizontal direction, and the projected area of the window glass generated thereby is 0.5 mm 2. Therefore, the window glass may be attached to the window frame of the vehicle so that the attachment angle of the window glass is 45 degrees or more and 75 degrees or less with respect to the horizontal direction.
  • the range in which the DAB glass antenna can be installed is limited. In particular, when the DAB glass antenna is provided together with the defogger, the installable range of the DAB glass antenna is limited.
  • the present invention since the sensitivity of the DAB glass antenna can be increased, it can be installed even in a window having such a small mounting area. That is, the present invention is particularly effective for such a window having a small mounting area.
  • the window glass having such an attachment area and attachment angle is, for example, a rear glass of a hatchback type automobile.
  • the rear glass is generally curved.
  • the mounting angle varies at each point of the window glass.
  • the curved window glass is attached so that the attachment angle is 45 degrees or more and 75 degrees or less at an arbitrary point of the window glass when the horizontal direction is 0 degree.
  • a DAB glass antenna according to one aspect of the present invention is a DAB glass antenna formed on any surface of a glass plate used as a window glass for a vehicle, and is disposed on the lower side of the glass plate. And a first element of a line extending in the vertical direction. As described above, according to this configuration, it is possible to improve DAB broadcast reception performance.
  • DAB broadcast reception performance can be improved.
  • FIG. 1 schematically illustrates a window glass according to an embodiment.
  • FIG. 2 schematically shows a usage example of the window glass according to the embodiment.
  • FIG. 3A schematically illustrates a window glass according to another embodiment.
  • FIG. 3B schematically illustrates a window glass according to another embodiment.
  • FIG. 3C schematically illustrates a window glass according to another embodiment.
  • FIG. 3D schematically illustrates a window glass according to another embodiment.
  • FIG. 4 schematically illustrates a window glass according to another embodiment.
  • FIG. 5A schematically illustrates an embodiment in which a DAB glass antenna is provided on the lower side of the glass plate.
  • FIG. 5B schematically illustrates a comparative example in which a DAB glass antenna is provided on the upper side of the glass plate.
  • FIG. 5A schematically illustrates an embodiment in which a DAB glass antenna is provided on the lower side of the glass plate.
  • FIG. 5B schematically illustrates a comparative example in which a DAB glass antenna is provided on the
  • FIG. 6A shows a measurement result of sensitivity (gain) of each example with respect to each frequency of band 3 of DAB.
  • FIG. 6B shows an average value of sensitivity (gain) of each example in the band 3 of DAB.
  • FIG. 7A shows a measurement result of sensitivity (gain) of each comparative example with respect to each frequency of band 3 of DAB.
  • FIG. 7B shows an average value of sensitivity (gain) of each comparative example in the band 3 of DAB.
  • FIG. 8 schematically illustrates an embodiment in which an L-shaped DAB glass antenna is provided on the lower side of the glass plate.
  • FIG. 9A shows the measurement results of the sensitivity (gain) of each example with respect to each frequency of the band 3 of DAB.
  • FIG. 9B shows an average value of sensitivity (gain) of each example in the band 3 of DAB.
  • FIG. 10 schematically illustrates an embodiment in which a defogger is provided on a glass plate provided with an L-shaped DAB glass antenna on the lower side.
  • FIG. 11A shows the measurement results of the sensitivity (gain) of each example with respect to each frequency of the band 3 of DAB.
  • FIG. 11B shows the average value of the sensitivity (gain) of each example in the band 3 of DAB.
  • FIG. 12 schematically illustrates an embodiment in which the defogger is provided with a vertical line portion.
  • FIG. 13A shows the measurement results of the sensitivity (gain) of each example for each frequency of band 3 of DAB.
  • FIG. 13B shows the average value of the sensitivity (gain) of each example in the band 3 of DAB.
  • FIG. 14 schematically illustrates an embodiment in which a DAB glass antenna in which the lengths of the vertical element and the horizontal element are adjusted is provided on the lower side of the glass plate provided with the defogger having five vertical line portions.
  • FIG. 15A shows a measurement result of sensitivity (gain) of each example with respect to each frequency of band 3 of DAB.
  • FIG. 15B shows an average value of sensitivity (gain) of each example in the band 3 of DAB.
  • FIG. 16 schematically illustrates a reference example in which an L-shaped DAB glass antenna is provided on the upper side of a glass plate.
  • FIG. 17A shows measurement results of sensitivity (gain) of each reference example with respect to each frequency of band 3 of DAB.
  • FIG. 17B shows the average value of the sensitivity (gain) of each reference example in the band 3 of DAB.
  • FIG. 18 schematically illustrates an embodiment in which a defogger is provided on a glass plate provided with an L-shaped DAB glass antenna on the upper side.
  • FIG. 19A shows a measurement result of sensitivity (gain) of each reference example with respect to each frequency of band 3 of DAB.
  • FIG. 19B shows an average value of sensitivity (gain) of each reference example in the band 3 of DAB.
  • FIG. 20 schematically illustrates a reference example in which the defogger is provided with a vertical line portion.
  • FIG. 21A shows a measurement result of sensitivity (gain) of each reference example with respect to each frequency of band 3 of DAB.
  • FIG. 21B shows the average value of the sensitivity (gain) of each reference example in the band 3 of DAB.
  • FIG. 22 schematically illustrates a reference example in which the defogger is provided with a vertical line portion.
  • FIG. 23A shows a simulation result of current distribution when a radio wave of 170 MHz is received in a reference example provided with one vertical line portion.
  • FIG. 23B shows a simulation result of current distribution when a 240 MHz radio wave is received in a reference example provided with one vertical filament.
  • FIG. 24A shows a simulation result of current distribution when a radio wave of 170 MHz is received in a reference example provided with three vertical filaments.
  • FIG. 24B shows a simulation result of current distribution when a 240 MHz radio wave is received in a reference example in which three vertical filaments are provided.
  • FIG. 25 shows a simulation result of sensitivity (gain) of each reference example with respect to each frequency of DAB band 3.
  • FIG. 26 schematically illustrates an embodiment in which a power feeding unit is provided near the side.
  • FIG. 27 shows the measurement results of the sensitivity (gain) of each example for each frequency of band 3 of DAB.
  • this embodiment will be described with reference to the drawings.
  • this embodiment described below is only an illustration of the present invention in all respects. It goes without saying that various improvements and modifications can be made without departing from the scope of the present invention. That is, in implementing the present invention, a specific configuration according to the embodiment may be adopted as appropriate.
  • FIG. 1 is a plan view schematically illustrating a window glass 1 according to this embodiment.
  • FIG. 1 schematically illustrates the window glass 1 viewed from the inside of the vehicle. That is, the back side of the sheet of FIG. 1 is the outside of the vehicle, and the front side of the sheet of FIG. 1 is the inside of the vehicle.
  • the up and down direction in FIG. 1 is referred to as “up and down”
  • the right direction in FIG. 1 is referred to as “left”
  • the left direction in FIG. 1 corresponds to the “horizontal direction” of the present invention
  • the vertical direction indicates, for example, a direction perpendicular to the ground when the window glass 1 is attached to the vehicle body.
  • a horizontal direction points out the direction parallel to the ground when the window glass 1 is attached to a vehicle body, for example.
  • the vertical direction and the horizontal direction include approximate directions having components in the respective directions.
  • the window glass 1 according to the present embodiment is a window glass for a vehicle that is attached to an automobile, and specifically a rear glass of the automobile.
  • the type of the window glass of the present invention is not limited to the rear glass, and can be appropriately selected according to the embodiment.
  • the window glass 1 according to the present embodiment includes a substantially trapezoidal glass plate 2 and is attached to a window frame provided at the rear part of the automobile.
  • a DAB glass antenna 4 for receiving DAB broadcasts is provided on the lower side of the glass plate 2, and above the DAB glass antenna 4.
  • An anti-fogging defogger 3 having a predetermined pattern is provided.
  • the defogger 3 and the DAB glass antenna 4 may be provided on either the inner surface or the outer surface of the glass plate 2.
  • the glass plate 2 As illustrated in FIG. 1, the glass plate 2 according to this embodiment includes an upper side portion 21 that extends in the left-right direction, a lower side portion 22 that faces the upper side portion 21 on the lower side, an upper side portion 21, and a lower side portion 22.
  • the left side part 23 which connects the left end parts of each other, and the right side part 24 which connects the right end parts of the upper side part 21 and the lower side part 22 to each other.
  • the glass plate 2 according to the present embodiment is used as a window glass of an automobile and is configured in a shape according to the window frame of the automobile to be attached.
  • the type of automobile to which the glass plate 2 is attached may be appropriately selected according to the embodiment, and may be, for example, a hatchback type.
  • the glass plate 2 may be used as a rear glass of a hatchback type automobile.
  • the glass plate 2 may be formed in the curved shape.
  • the glass plate 2 may be formed in a curved shape from the peripheral portion to the central portion so that the vehicle inner surface is concave and the vehicle outer surface is convex.
  • Such a glass plate 2 can have various configurations depending on the embodiment.
  • the glass plate 2 a known glass plate for automobiles can be used.
  • the glass plate 2 may be heat ray absorbing glass, general clear glass or green glass, or UV green glass.
  • the glass plate 2 can be adjusted so that solar radiation absorptivity, visible light transmittance, etc. satisfy safety standards.
  • a composition of clear glass and an example of a heat ray absorption glass composition are shown.
  • the composition of the heat-absorbing glass for example, based on the composition of the clear glass, the proportion of the total iron oxide in terms of Fe 2 O 3 (T-Fe 2 O 3) and 0.4 to 1.3 wt%, CeO
  • the ratio of 2 is 0 to 2% by mass
  • the ratio of TiO 2 is 0 to 0.5% by mass
  • the glass skeleton components (mainly SiO 2 and Al 2 O 3 ) are T-Fe 2 O 3 , CeO.
  • the composition can be reduced by an increase of 2 and TiO 2 .
  • the kind of glass plate 2 is not restricted to clear glass, heat ray absorption glass, etc., It can select suitably according to embodiment.
  • the glass plate 2 may be an acrylic or polycarbonate resin window.
  • the defogger 3 for anti-fogging will be described.
  • the defogger 3 according to the present embodiment is provided on the upper side portion 21 side of the glass plate 2 so as to be disposed above the DAB glass antenna 4 described later, It has a predetermined pattern for removing freezing.
  • the defogger 3 includes a pair of bus bar portions 31 facing in the left-right direction, and a plurality (six in FIG. 1) of hot wire portions 32 extending in the left-right direction and arranged in the up-down direction. . Both end portions of each hot wire portion 32 are connected to each bus bar portion 31.
  • Each bus bar portion 31 is provided with a connection portion 34 for attaching a predetermined connection terminal.
  • connection portion 34 A predetermined connection terminal is attached to the connection portion 34 by soldering or the like, and wiring (not shown) from the power source of the automobile is connected to the bus bar portion 31 via the connection terminal. Therefore, the driver of the automobile can supply electricity to the defogger 3 by operating an operation panel (not shown).
  • each heat wire part 32 When electricity is supplied to the defogger 3, an electric current is generated in each hot wire portion 32 via the bus bar portion 31. If it does so, each heat wire part 32 will be heated by the energy of the electricity which flows, and the glass plate 2 will be warmed by the part in which this heat wire part 32 was formed. Thereby, dew condensation and icing on the surface of the glass plate 2 can be removed.
  • the defogger 3 is provided with a plurality (five in FIG. 1) of vertical line portions 33 extending in the vertical direction so as to intersect with the respective heat ray portions 32.
  • the defogger 3 is made of a conductive material having conductivity. Therefore, when the defogger 3 is close to the DAB glass antenna 4 described later, the defogger 3 can affect the reception performance of the DAB glass antenna 4.
  • the receiving performance of the DAB glass antenna 4 is improved by short-circuiting the hot wire portions 32 by the vertical wire portions 33 as shown in the respective experiments described below (particularly, the experiments 4 and 8). be able to. Therefore, in the present embodiment, the plurality of vertical line portions 33 are provided in the defogger 3 so that the reception performance of the DAB glass antenna 4 is enhanced.
  • one vertical line portion 33 is disposed at the center in the left-right direction of the glass plate 2, and two vertical line portions are respectively formed in the left-right direction around the one vertical line portion 33.
  • the portions 33 are arranged symmetrically. Thereby, the defogger 3 according to the present embodiment is formed symmetrically.
  • the shape, number and arrangement of the bus bar portions 31, the shape, number and arrangement of the hot wire portions 32, the shape, number and arrangement of the vertical wire portions 33, and the position of the connection portion 34 are not limited to such examples. It is also possible to design appropriately according to the embodiment.
  • the vertical line portion 33 may be single or may be omitted.
  • the inventors may generate a standing wave in the defogger 3 due to radio waves in the DAB frequency band, and the DAB glass antenna 4 It has been found that the sensitivity of.
  • the vertical line portion 33 is arranged so that a standing wave of the radio wave is not generated in the defogger 3 by a radio wave in the DAB frequency band. Thereby, it is possible to prevent the sensitivity of the DAB glass antenna 4 from being lowered and to improve the DAB broadcast reception performance.
  • the arrangement of the vertical line portions 33 that does not generate a standing wave of DAB radio waves is as follows. That is, in each hot wire portion 32, a distance P between the portion sandwiched between the bus bar portion 31 and the vertical linear portion 33 and the portion sandwiched between the adjacent vertical linear portions 33 (hereinafter, this distance is referred to as “distance”).
  • this distance is an integral multiple of half the wavelength of the received radio wave
  • a stationary wave of the radio wave can be generated in each part. Therefore, by arranging each vertical line portion 33 so that the distance P between each portion is not equal to an integral multiple of F shown in the following formula 1, a standing wave due to radio waves in the DAB frequency band is not generated in the defogger 3. Can be.
  • F indicates a half wavelength of DAB radio waves.
  • ⁇ 0 indicates the wavelength of DAB radio waves on the heat ray portion 32.
  • K indicates a wavelength shortening rate on the heat ray portion 32.
  • the value of K (wavelength shortening rate) can be specified based on the physical properties (relative dielectric constant) of glass, the thickness of glass, the frequency of radio waves to be received, and the like. In general glass, the value of K is set in the range of 0.6 to 0.8.
  • C indicates the speed of light.
  • f indicates the frequency of DAB radio waves.
  • each vertical line portion 33 is arranged so as not to be equal to (and an integral multiple of this), it is possible to prevent a standing wave due to the radio wave of the band 3 from being generated in the defogger 3.
  • the said calculation was performed with the simple numerical value for the convenience of description.
  • the values of K, f, and c are not limited to the above values, and may be appropriately selected according to the embodiment.
  • the defogger 3 is formed by laminating a conductive material having conductivity so as to have a predetermined pattern on the surface of the glass plate 2.
  • the material of the defogger 3 only needs to have conductivity, and can be appropriately selected according to the embodiment. Examples of the material of the defogger 3 include silver, gold, platinum and the like.
  • the defogger 3 can be formed, for example, by printing and baking a conductive silver paste containing silver powder, glass frit and the like on the surface of the glass plate 2.
  • DAB is a digital radio broadcasting standard adopted in Europe and the like.
  • the band 3 whose frequency band is 174 MHz to 240 MHz and the L band whose frequency band is 1452 MHz to 1492 MHz are mainly used.
  • the DAB glass antenna 4 may be appropriately configured according to the frequency band to be received.
  • Each frequency band can be slightly changed according to the specification of the automobile. Therefore, for example, the band of 174 MHz to 240 MHz of band 3 may be handled as a band of 170 MHz to 240 MHz. In this specification, for convenience of explanation, a band of 170 MHz to 240 MHz is also used as a frequency band of DAB band 3.
  • the DAB glass antenna 4 includes a rectangular power feeding portion 41 disposed on the lower side portion 22 side of the glass plate 2, a linear element 42 having a linear line extending vertically upward from the power feeding portion 41, and A linear element 43 connected to the vertical element 42 and extending in the left direction (horizontal direction).
  • the horizontal element 43 is connected to the upper end of the vertical element 42 at the right end.
  • the vertical element 42 and the horizontal element 43 constitute an L-shaped antenna.
  • the vertical element 42 corresponds to the “first element” of the present invention
  • the horizontal element 43 corresponds to the “second element” of the present invention.
  • the conventional DAB glass antenna was disposed on the upper side of the window glass.
  • the present inventors based on each experiment described below (especially Experiment 1), rather than arranging the DAB glass antenna on the lower side of the window glass on the upper side of the glass plate, It has been found that the sensitivity of the DAB glass antenna is improved. Therefore, in this embodiment, the DAB glass antenna 4 is arranged on the lower side of the window glass 1 by arranging the power feeding part 41 of the DAB glass antenna 4 on the lower side 22 side of the glass plate 2. Thereby, the reception performance of DAB broadcasting by the DAB glass antenna 4 can be improved.
  • the length of the vertical element 42 in the vertical direction (up and down direction) and the length of the horizontal element 43 in the horizontal direction (left and right direction) may be appropriately set according to the frequency band to be received.
  • the vertical length of the vertical element 42 in the vertical direction up and down direction
  • the length of the horizontal element 43 in the horizontal direction left and right direction
  • DAB vertically polarized signal
  • the defogger 3 since the defogger 3 is provided above the DAB glass antenna 4, the range in which the DAB glass antenna 4 can be installed is limited. In other words, the vertical length of the vertical element 42 that can be formed is limited by the vertical length of the defogger 3.
  • a horizontal element 43 connected to the vertical element 42 is provided in order to ensure the length of the DAB glass antenna 4. Accordingly, in the present embodiment, the vertical length of the vertical element 42 can be suppressed while maintaining the reception performance of the DAB glass antenna 4.
  • the vertical length of the vertical element 42 be configured to be 20 mm or more based on each experiment described below (particularly, Experiment 2, Experiment 5, and Experiment 6).
  • the total length of the vertical element 42 and the horizontal element 43 is preferably configured to be a length corresponding to 1 ⁇ 2 wavelength of the radio wave to be received.
  • the DAB glass antenna 4 is disposed such that the upper end of the DAB glass antenna 4 is separated downward from the defogger 3 by a distance D1.
  • the defogger 3 is disposed at a distance D1 vertically upward from the upper end of the DAB glass antenna 4.
  • the horizontal element 43 since the horizontal element 43 is connected to the upper end portion of the vertical element 42, the upper side portion of the horizontal element 43 corresponds to the upper end portion of the glass antenna 4 together with the upper end portion of the vertical element 42.
  • the distance D1 may be appropriately set according to the embodiment. However, if the distance D1 is too short, the defogger 3 made of a conductive material may adversely affect the reception performance of the DAB glass antenna 4. Therefore, in order to prevent the defogger 3 from affecting the reception performance of the DAB glass antenna 4 based on each experiment described below (particularly, Experiment 3), the distance D1 is preferably set to 46 mm or more. . In addition, when the distance D1 is too long, the range in which the DAB glass antenna 4 can be installed becomes narrow, and the vertical length of the vertical element 42 is greatly limited. Therefore, the upper limit value of the distance D1 may be appropriately set according to the vertical length of the vertical element 42.
  • the DAB glass antenna 4 is configured as a so-called bipolar antenna. That is, the DAB glass antenna 4 further includes a rectangular ground connection portion 44 disposed in the vicinity of the power feeding portion 41 and a ground wire portion extending in the left direction (horizontal direction) from the ground connection portion 44. 45.
  • An inner conductor of a coaxial cable (not shown) connected to a receiver (not shown) mounted on the automobile is electrically connected to the power feeding unit 41 and receives signals received by the vertical element 42 and the horizontal element 43. receive.
  • the outer conductor of the coaxial cable is electrically connected to the ground connection portion 44 and grounded.
  • An amplifier (not shown) may be provided between the power feeding unit 41 and the receiver.
  • the DAB broadcast can be received by the receiver mounted on the automobile.
  • this amplifier is arrange
  • the amplifier and the power feeding unit 41 can be connected by wiring without cutting out the frame of the vehicle body.
  • the distance between the amplifier and the power feeding unit 41 can be shortened, whereby the loss in wiring can be suppressed and the reception performance of the DAB glass antenna 4 can be improved.
  • the configuration of the DAB glass antenna 4 may not be limited to such an example, and the ground connection portion 44 and the ground wire portion 45 are omitted, and the DAB glass antenna 4 is configured as a so-called monopolar antenna. May be.
  • the outer conductor of the coaxial cable may be grounded, for example, by being directly connected to the automobile body.
  • Such a DAB glass antenna 4 can be formed by laminating a conductive material having conductivity on the surface of the glass plate 2 so as to have a predetermined pattern, like the defogger 3.
  • the material of the glass antenna 4 for DAB should just have electroconductivity, and can be selected suitably for embodiment.
  • Examples of the material for the DAB glass antenna 4 include silver, gold, and platinum.
  • the DAB glass antenna 4 can be formed, for example, by printing and baking a conductive silver paste containing silver powder, glass frit and the like on the surface of the glass plate 2.
  • the glass plate 2 of the window glass 1 according to the present embodiment can be formed by a press forming method in which the glass plate 2 is formed by pressing, a self-weight bending method in which the glass plate 2 is bent by its own weight, or the like.
  • the glass plate 2 when the glass plate 2 is formed in each method, the glass plate 2 is heated to near the softening point in a heating furnace. Before being carried into the heating furnace, the glass plate 2 is formed in a flat plate shape, and a conductive silver paste containing silver powder, glass frit and the like is printed on the surface of the glass plate 2. Then, by bringing the glass plate 2 into the heating furnace, the glass plate 2 is formed and the silver paste printed on the glass plate 2 is baked to form the defogger 3 and the DAB glass antenna 4. it can.
  • FIG. 2 schematically shows a usage example of the window glass 1 according to the present embodiment.
  • the window glass 1 according to the present embodiment can be used as a rear glass of a hatchback type vehicle 8.
  • the vehicle 8 includes a window frame 9 on the rear side, and the window glass 1 is attached to the window frame 9.
  • the window glass 1 is irradiated with parallel light from the horizontal direction, the resulting projection area is 0.5 mm 2 , and the mounting angle when the horizontal direction is the reference (when the horizontal direction is 0 degree) is 45. It is attached to the window frame 9 so that the angle is not less than 75 degrees and not more than 75 degrees.
  • the mounting angle varies at each point of the window glass 1.
  • the window glass 1 is attached to the window frame 9 so that the attachment angle is 45 degrees or more and 75 degrees or less at an arbitrary point of the window glass 1.
  • the projected area can be measured, for example, as follows.
  • the window glass 1 is attached to the window frame of the vehicle, and parallel light parallel to the ground is irradiated onto the window glass 1 from the inside of the vehicle. And the transmitted light of the window glass 1 is projected on the screen outside a vehicle installed perpendicularly
  • the size of the window glass 1 is relatively small. Therefore, if the defogger 3 is provided on the window glass 1 together with the DAB glass antenna 4, the range in which the DAB glass antenna 4 can be installed is limited.
  • the vertical length of the vertical element 42 can be suppressed while maintaining the reception performance of the DAB glass antenna 4. That is, even if the range in which the DAB glass antenna 4 can be installed is limited, the reception performance of the DAB glass antenna 4 can be maintained. Therefore, the present embodiment is particularly effective in such a window having a mounting area and a mounting angle.
  • the glass plate 2 may have, for example, a shape curved forward and a flat shape. Moreover, the glass plate 2 may be utilized for uses other than rear glass.
  • the glass plate 2 is composed of a single glass plate.
  • the said glass plate 2 may be comprised with the laminated glass which mutually joined the outer side glass plate and the inner side glass plate via the intermediate film.
  • the glass plate 2 is formed in a trapezoidal shape.
  • the shape of the glass plate 2 may not be limited to such a shape, and may be appropriately selected according to the embodiment.
  • the defogger 3 may not be formed symmetrically.
  • a plurality (five in the figure) of vertical line portions 33 are arranged symmetrically.
  • the plurality of vertical line portions 33 do not have to be arranged symmetrically in this way.
  • five vertical line portions 33 are provided.
  • the number of the vertical line portions 33 is not limited to five, but may be one to four, or may be six or more. That is, the arrangement and number of the vertical line portions 33 may be appropriately selected according to the embodiment.
  • the pitch between the adjacent vertical line portions 33 and the pitch between the bus bar portion 31 and the vertical line portion 33 adjacent to the bus bar portion 31 are not equal to an integral multiple of F shown in Equation 1 above.
  • the arrangement and number of the vertical line portions 33 may or may not be constant.
  • the shapes of the power feeding unit 41 and the ground connection unit 44 may not be limited to a rectangular shape, and may be appropriately selected according to the embodiment.
  • the positions at which the vertical elements 42 and the horizontal elements 43 are connected may not be limited to the above examples, and may be appropriately selected according to the embodiment.
  • the horizontal element 43 may be connected to any position of the vertical element 42 at the center.
  • a T-shaped or cross-shaped antenna can be configured.
  • FIGS. 3A and 3B may be configured.
  • FIG. 3A schematically illustrates a window glass 1 ⁇ / b> A in which the defogger 3 is omitted from the window glass 1.
  • FIG. 3B schematically illustrates the window glass 1 ⁇ / b> B from which the vertical filament 33 is omitted from the window glass 1.
  • the window glass 1A illustrated in FIG. 3A will be described.
  • the defogger 3 may be omitted.
  • the horizontal element 43 may be omitted from the DAB glass antenna 4, and the vertical element 42 may constitute the antenna.
  • the DAB glass antenna 4A illustrated in FIG. 3A is the same as the DAB glass antenna 4 except that the horizontal element 43 is omitted.
  • the window glass 1B illustrated in FIG. 3B will be described.
  • the vertical line portion 33 in the defogger 3 may be omitted.
  • the defogger 3B illustrated in FIG. 3B is the same as the defogger 3 except that the vertical line portion 33 is omitted.
  • the distance D1 is preferably set to 46 mm or more so that the defogger 3B does not adversely affect the reception performance of the DAB glass antenna 4.
  • the power feeding unit 41 is disposed in the center in the horizontal direction, and the vertical element 42 is directly connected to the power feeding unit 41.
  • the arrangement of the power feeding portion 41 and the shape of each element of the DAB glass antenna 4 may not be limited to such an example, and may be appropriately changed according to the embodiment.
  • the power feeding part 41 may be arranged near the left side part 23 or the right side part 24.
  • the vertical element 42 may not be directly connected to the power feeding unit 41.
  • the changes shown in FIGS. 3C and 3D are possible.
  • FIG. 3C schematically illustrates a window glass 1D in which a DAB glass antenna 4D is provided near the right side 24.
  • the DAB glass antenna 4D includes a power feeding portion 41D disposed near the right side portion 24 and a wiring portion 46D extending from the power feeding portion 41D toward the left side portion 23.
  • the wiring portion 46D is, in order from the power feeding portion 41D side, a first portion 461D extending slightly upward from the power feeding portion 41D, a second portion 462D extending leftward from the upper end portion of the first portion 461D, and a little from the left end portion of the second portion 462D.
  • the third portion 463D extends downward, and the fourth portion 464D extends greatly to the left from the lower end of the third portion 463D.
  • the vertical element 42D is connected to the left end portion of the fourth portion 464D of the wiring portion 46D and extends vertically upward from the left end portion of the fourth portion 464D.
  • the horizontal element 43D is connected to the upper end portion of the vertical element 42D and extends from the upper end portion of the vertical element 42D to the right side. The horizontal element 43D is shorter in the left-right direction than the fourth portion 464D of the wiring portion 46D.
  • a ground connection part 44D is arranged on the left side of the power feeding part 41D.
  • the first portion 461D to the third portion 463D of the wiring portion 46D are arranged so as to surround the upper side of the ground connection portion 44D, and therefore, downward from the ground connection portion 44D.
  • An extending linear portion 47D is provided.
  • the ground wire portion 45D extends in the horizontal direction from the lower end portion of the wire portion 47D.
  • the window glass 1D has the same configuration as the window glass 1 described above.
  • the wiring portion 46D may be formed of the same material as each element (42D, 43D). Therefore, all or part of the wiring part 46D may be configured to exhibit the same function as each element (42D, 43D).
  • FIG. 3D schematically illustrates a window glass 1E having a DAB glass antenna 4E having a shape different from that of the DAB glass antenna 4D shown in FIG. 3C.
  • the DAB glass antenna 4E includes a power feeding part 41E disposed near the right side part 24 and a ground connection part 44E disposed on the right side of the power feeding part 41E.
  • the wiring part 46E extends in the horizontal direction from the power feeding part 41E.
  • the vertical element 42E is connected to the left end portion of the wiring portion 46E and extends upward in the vertical direction from the left end portion of the wiring portion 46E.
  • the horizontal element 43E is connected to the upper end portion of the vertical element 42E, and extends rightward from the upper end portion of the vertical element 42E.
  • the horizontal element 43E is shorter in the left-right direction than the wiring portion 46E.
  • the wiring portion 46E may be formed of the same material as each element (42E, 43E). Therefore, all or part of the wiring portion 46E may be configured to emit the same function as each element (42E, 43E).
  • the wire portion 47E extends slightly downward from the ground connection portion 44E.
  • the ground wire part 45E is extended in the horizontal direction from the lower end part of this wire part 47E.
  • the ground wire portion 45E extends to the left side portion 23 side with respect to the vertical element 42E.
  • the window glass 1E has the same configuration as the window glass 1 described above.
  • the arrangement of the power feeding portion 41 and the shape of each element of the DAB glass antenna 4 can be appropriately changed according to the embodiment.
  • the reception performance of the DAB glass antenna 4 can be improved by providing the vertical line portion 33 in the defogger 3. For this reason, when the reception performance of the DAB glass antenna 4 is improved by providing the vertical line portion 33 in the defogger 3, the DAB glass antenna 4 is arranged on the upper side 21 side of the glass plate 2. May be.
  • this example will be described with reference to FIG.
  • FIG. 4 schematically illustrates a window glass 1C in which the DAB glass antenna 5 is provided on the upper side 21 side of the glass plate 2.
  • the DAB glass antenna 5 illustrated in FIG. 4 is the same as the DAB glass antenna 4 except that it is disposed on the upper side 21 side of the glass plate 2.
  • the DAB glass antenna 5 includes a rectangular power feeding portion 51 disposed on the upper side portion 21 side of the glass plate 2, a linear vertical element 52 extending vertically downward from the power feeding portion 51, and a vertical element 52. And a horizontal element 53 of a line extending in the left direction (horizontal direction). Further, the DAB glass antenna 5 is configured as a bipolar antenna, and extends in the left direction (horizontal direction) from the rectangular ground connection portion 54 disposed in the vicinity of the power feeding portion 51 and the ground connection portion 54. And a ground wire 55 for the wire.
  • the defogger 3C illustrated in FIG. 4 is the same as the defogger 3 except that the defogger 3C is disposed on the lower side 22 side of the glass plate 2.
  • the distance D2 between the lower end of the DAB glass antenna 5 and the defogger 3C may be appropriately set according to the embodiment. Based on each experiment (especially experiment 7) described later, the distance D2 may be set to 85 mm or more.
  • the horizontal element 53 is connected to the lower end portion of the vertical element 52. Therefore, the lower end portion of the vertical element 52 and the lower side portion of the horizontal element 53 correspond to the lower end of the DAB glass antenna 5.
  • Experiment 1 Arrangement of DAB glass antenna First, in Experiment 1, as shown in FIGS. 5A and 5B, the DAB glass antenna is arranged on the upper side or the lower side of the glass plate. The influence on the reception performance of the DAB glass antenna was investigated.
  • FIG. 5A schematically illustrates Example 1 in which the DAB glass antenna 4C is disposed on the lower side 22 side of the glass plate 2.
  • FIG. 5B schematically illustrates Comparative Example 1 in which the DAB glass antenna 5 is disposed on the upper side 21 side of the glass plate 2.
  • a window glass of Example 1 having the same configuration as the window glass 1A of the modified example illustrated in FIG. 3A was prepared.
  • a curved rear glass of a hatchback type wagon car was prepared as a window glass according to Example 1.
  • the prepared window glass concerning Example 1 was attached to the window frame of the rear side in a hatchback type wagon car.
  • the length of the upper side of the window frame to which the glass plate 2 was attached was 920 mm
  • the length of the lower side of the window frame was 1100 mm
  • the height in the vertical direction of the window frame was 415 mm.
  • the glass plate 2 was formed by a known manufacturing process so as to fit the size of the window frame.
  • the power feeding portion 41, the ground connection portion 44, and the ground wire portion 45 are disposed 5 mm above the lower side of the window frame, and the power feeding portion 41 and the vertical element 42 are disposed at the center in the left-right direction of the glass plate 2.
  • the window glass according to Example 1 was obtained by configuring the DAB glass antenna 4A.
  • the power feeding part 41 and the ground connection part 44 according to Example 1 were each 20 mm ⁇ 20 mm rectangular.
  • the vertical length of the vertical element 42 was 300 mm.
  • the length of the ground wire 45 in the left-right direction was 110 mm.
  • the window glass according to Examples 2 to 5 was obtained by moving the DAB glass antenna 4A of Example 1 toward the right side 24 at a pitch of 100 mm. That is, the window glass according to Example 2 was obtained by horizontally moving the DAB glass antenna 4A of Example 1 to the right side 24 side by 100 mm. Similarly, the window glass according to Examples 3, 4, and 5 was obtained by horizontally moving the DAB glass antenna 4A of Example 1 by 200 mm, 300 mm, and 400 mm toward the right side 24. In each of the DAB glass antennas 4A according to Examples 2 to 4, the vertical length of the vertical element 42 was set to 300 mm as in Example 1. On the other hand, the vertical length of the vertical element 42 of the DAB glass antenna 4A according to Example 5 was 290 mm. In the window glass according to Example 5, the distance from the right side 24 of the glass plate 2 to the vertical element 42 was 141.5 mm.
  • the window glass of Comparative Example 1 was prepared by arranging the DAB glass antenna 4A of Example 1 on the upper side 21 side of the glass plate 2 as illustrated in FIG. 5B. Specifically, the glass plate 2 was formed in the same manner as in Example 1 above. In addition, the power feeding portion 51, the ground connection portion 54, and the ground wire portion 55 are disposed 5mm below the upper side of the window frame, and the power feeding portion 51 and the vertical element 52 are disposed at the center in the left-right direction of the glass plate 2.
  • the window glass according to Comparative Example 1 was obtained by configuring the DAB glass antenna 5.
  • the power feeding part 51 and the ground connection part 54 according to the comparative example 1 were each 20 mm ⁇ 20 mm rectangular like the first example.
  • the vertical length of the vertical element 52 was 310 mm. Further, the length of the ground wire 55 in the left-right direction was 110 mm.
  • the window glass according to Comparative Examples 2 to 5 was obtained by moving the DAB glass antenna 5 of Comparative Example 1 toward the right side 24 at a pitch of 100 mm. That is, the window glass according to Comparative Example 2 was obtained by horizontally moving the DAB glass antenna 5 of Comparative Example 1 100 mm toward the right side 24. Similarly, the window glass according to Comparative Examples 3, 4 and 5 was obtained by horizontally moving the DAB glass antenna 5 of Comparative Example 1 to the right side 24 side by 200 mm, 300 mm and 400 mm, respectively. The vertical length of the vertical element 52 of each DAB glass antenna 5 according to Comparative Examples 2 to 4 was set to 300 mm.
  • the vertical length of the vertical element 52 of the DAB glass antenna 5 according to Comparative Example 5 was 290 mm.
  • the distance from the right side 24 of the glass plate 2 to the vertical element 52 was 60.5 mm.
  • Each window glass of Examples 1 to 5 and Comparative Examples 1 to 5 thus obtained was attached to a hatchback type wagon car as described above. Then, the DAB band 3 radio wave is radiated to the wagon car in the anechoic chamber, and the DAB band 3 signal is received by each DAB glass antenna, thereby improving the sensitivity of each DAB glass antenna. It was measured.
  • a network analyzer manufactured by Agilent, type plate: E-5071C was used for measuring the sensitivity of each DAB glass antenna. Specific conditions for the measurement are as follows.
  • FIG. 6A shows the measurement results of the sensitivity (gain) of Examples 1 to 5 for each frequency of DAB band 3.
  • FIG. 6B shows an average value of the sensitivity (gain) of each of Examples 1 to 5 in the band 3 of DAB.
  • FIG. 7A shows the measurement results of Comparative Examples 1 to 5 for each frequency of DAB band 3.
  • FIG. 7B shows an average value of sensitivity (gain) of Comparative Examples 1 to 5 in the band 3 of DAB.
  • each of Examples 1 to 5 is compared with each of Comparative Examples 1 to 5
  • the sensitivity was about 1 dBd. That is, it has been found that the DAB broadcasting (particularly, band 3) reception performance is improved when the DAB glass antenna is arranged on the lower side rather than on the upper side of the window glass.
  • each ground wire portion 45, 55
  • the reception performance of Comparative Example 3 was the best. This is presumably due to the fact that each ground wire portion (45, 55) extends in the left direction. In other words, by shifting the DAB glass antenna about the length of the ground wire portion in the direction opposite to the direction in which the ground wire portion extends from the center in the left-right direction of the glass plate, the reception performance of the DAB glass antenna is enhanced. I found out that
  • FIG. 8 schematically illustrates the window glasses according to Examples 7 to 11 constituting the L-shaped antenna in Experiment 2.
  • Example 1 an implementation having the same configuration as that of Example 1 is made by setting the length L1 of the vertical element 42 in Example 1 of Experiment 1 to 240 mm and the length of the ground wire 45 in the horizontal direction to 300 mm.
  • a window glass according to Example 6 was obtained. That is, in the DAB glass antenna 4 according to the sixth embodiment, the length L2 of the horizontal element 43 is 0 mm.
  • the wiring connected to the ground connection portion 44 was grounded at a position of 150 mm from the terminal of the connection portion provided on the vehicle body side.
  • the window glass of Examples 7 to 11 was obtained by shortening the length L1 of the vertical element 42 of Example 6 and increasing the length L2 of the horizontal element 43.
  • the length L1 of the vertical element 42 was 100 mm
  • the length L2 of the horizontal element 43 was 120 mm
  • the length L1 of the vertical element 42 was 80 mm
  • the length L2 of the horizontal element 43 was 140 mm.
  • the length L1 of the vertical element 42 was set to 60 mm
  • the length L2 of the horizontal element 43 was set to 160 mm.
  • the length L1 of the vertical element 42 was 40 mm, and the length L2 of the horizontal element 43 was 180 mm.
  • the length L1 of the vertical element 42 was 20 mm, and the length L2 of the horizontal element 43 was 190 mm. That is, in Examples 7 to 11, the vertical element 42 and the horizontal element 43 constitute an L-shaped antenna.
  • the sensitivity of each DAB glass antenna was measured in the same manner as in Experiment 1 above. 9A and 9B show the results.
  • FIG. 9A shows the measurement results of the sensitivity (gain) of Examples 6 to 11 with respect to each frequency of band 3 of DAB.
  • FIG. 9B shows an average value of sensitivity (gain) of Examples 6 to 11 in the band 3 of DAB.
  • FIG. 9A and FIG. 9B it was found that the reception performance of the DAB glass antenna deteriorates as the length L1 of the vertical element is shortened.
  • the average sensitivity of the DAB glass antenna according to Example 11 was ⁇ 8.4 dBd. If the sensitivity is lower than this, it is estimated that the reception of DAB broadcasts will be affected. That is, from these results, it was found that by setting the length of the vertical element to 20 mm or more, it is possible to ensure reception performance that can withstand receiving DAB (particularly, band 3) broadcasts.
  • FIG. 10 schematically illustrates the window glass according to Example 14 in which the two hot wire portions 32 in Experiment 3 are provided.
  • the window glass which concerns on Example 12A which has the structure similar to the said Example 7 was obtained by setting length L2 of the horizontal element 43 in Example 7 of the said experiment 2 to 120 mm. That is, the window glass according to Example 12A has the same configuration as the window glass according to Example 7 except for the length of the horizontal element 43 of the DAB glass antenna 4.
  • the window glass according to Example 12B was obtained by setting the length L1 of the vertical element 42 of Example 12A to 80 mm and the length L2 of the horizontal element 43 to 140 mm.
  • the length L2 of the horizontal element 43 of Example 12A is 140 mm
  • the window glass according to Example 13 is provided by providing the defogger 3B having one heat ray portion 32 on the window glass according to Example 12. Obtained.
  • the distance D1 between the defogger 3B and the DAB glass antenna 4 was 241 mm.
  • the length between the bus bar portions 31 of the defogger 3B was 900 mm near the upper end and 970 mm near the lower end. Met.
  • the window glass according to Examples 14 to 20 is obtained by increasing the heat ray portions 32 of the defogger 3B according to Example 13 downward at a pitch of 32.5 mm. It was.
  • the defogger 3B having 2 to 8 heat ray portions 32 is formed, and the distances D1 between the defogger 3B and the DAB glass antenna 4 are 208.5 mm and 176 mm, respectively. 143.5 mm, 111 mm, 78.5 mm, 46 mm and 13.5 mm.
  • the sensitivity of each DAB glass antenna was measured in the same manner as in the above experiments. 11A and 11B show the results. “Example 12” in FIG. 11A indicates the average value of the measured values obtained for Example 12A and Example 12B.
  • FIG. 11A shows the measurement results of the sensitivity (gain) of Examples 12 to 20 for each frequency of band 3 of DAB.
  • FIG. 11B shows an average value of sensitivity (gain) of Examples 13 to 20 in the band 3 of DAB.
  • the reception performance of the DAB glass antenna did not change significantly between Examples 12 to 19, and deteriorated in Example 20.
  • the defogger was brought closer to the range of less than 46 mm from the DAB glass antenna, the sensitivity of the DAB glass antenna was lowered due to interference of the defogger.
  • the influence of the defogger on the reception performance of the DAB glass antenna can be prevented by separating the distance D1 between the defogger and the DAB glass antenna by 46 mm or more.
  • the reception performance of the DAB glass antenna can be prevented from deteriorating by separating the distance D1 between the defogger and the DAB glass antenna by 46 mm or more. I understood.
  • FIG. 12 schematically illustrates the window glass according to Example 23 in which five vertical line portions 33 are provided.
  • a window glass according to Example 6 of Experiment 2 in which a defogger was not provided and a linear antenna was configured was prepared. Further, the length L1 of the vertical element 42 of Example 12A of Experiment 3 in which the defogger is not provided and the L-shaped antenna is configured is 100 mm, and the length L2 of the horizontal element 43 is 140 mm. Thus, a window glass according to Example 12C was prepared. Furthermore, although one defogger is provided, one hot wire part 32 is added to the lowermost part of the defogger 3B of Example 20 of Experiment 3 in which no vertical line part is provided, and the total number of the hot wire parts 32 is 9. It was a book. And the window glass which concerns on Example 20A was prepared by shifting the defogger 3B to the upper side so that the distance of the lowermost heat ray part 32 and the glass antenna 4 for DAB might be set to 13.5 mm.
  • the window glasses according to Examples 21 to 23 were obtained.
  • the vertical line portion 33 was provided only at the center in the left-right direction. That is, in the window glass according to Example 21, one vertical line portion 33 in total was provided.
  • one vertical line portion 33 is provided at the center in the left-right direction, and one vertical line portion is provided in the left-right direction around the one vertical line portion 33. 33 were arranged symmetrically. That is, the window glass according to Example 22 was provided with a total of three vertical line portions 33. In addition, the distance W1 between each vertical line part 33 arrange
  • one vertical line portion 33 is provided at the center in the left-right direction, and two vertical line portions are formed in the left-right direction around the one vertical line portion 33. 33 were arranged symmetrically. That is, in the window glass according to Example 22, a total of five vertical line portions 33 were provided.
  • positioned in the center was 200 mm.
  • the distance W2 between each vertical line portion 33 arranged on the outer side in the left-right direction and the vertical line portion 33 arranged in the center was set to 300 mm.
  • the sensitivity of each DAB glass antenna was measured in the same manner as in the above experiments. 13A and 13B show the results.
  • FIG. 13A shows the measurement results of the sensitivity (gain) of Examples 6, 12C, 20A, and 21 to 23 with respect to each frequency of DAB band 3.
  • FIG. 13B shows an average value of the sensitivity (gain) of each of Examples 6, 12C, 20A, and 21 to 23 in the band 3 of DAB.
  • Examples 22 and 23 provided with a plurality of vertical line portions had substantially the same reception performance as Example 6 provided with no defogger.
  • the reception performance of the DAB glass antenna tended to improve as the number of vertical filaments increased.
  • Examples 22 and 23 are forms in which a plurality of vertical filaments are added to the defogger in Example 20 of Experiment 3 above. That is, in Examples 22 and 23, the reception performance of the DAB glass antenna was improved in spite of the fact that the defogger was placed in the range where the reception performance of the DAB glass antenna was deteriorated in Experiment 3 above. Therefore, even if the defogger is arranged in a range where the reception performance of the DAB glass antenna is deteriorated from this experiment 4, by providing the defogger with vertical line portions (particularly, a plurality of vertical line portions), It was found that the reception performance of the DAB glass antenna can be improved.
  • the vertical striated portion is provided in the defogger, particularly in the case where a plurality of vertical striated portions are provided in the defogger, even if the DAB glass antenna is disposed on the upper side of the window glass, the DAB It was speculated that the reception performance of the glass antenna could be improved.
  • Example 21 the reception performance of the DAB glass antenna is degraded at about 210 MHz. This is assumed to be due to the fact that a standing wave is generated in the defogger 3 by the radio wave per 210 MHz.
  • Example 21 the length between the bus bar portions 31 was 900 mm near the upper end and 970 mm near the lower end. Since the vertical line portion 33 is added only at the center in the left-right direction, the pitch between each bus bar portion 31 and the vertical line portion 33 is 450 mm to 485 mm (0.45 m to 0.485 m). This pitch range is included in the above F (0.44 m to 0.62 m) range assuming DAB band 3. That is, according to the condition of the above formula 1, in Example 21, it was assumed that a standing wave was generated in the defogger 3.
  • each pitch was 200 mm or 250 mm to 285 mm.
  • each pitch was 100 mm, 150 mm to 185 mm, or 200 mm. That is, in Examples 22 and 23, the pitch between the adjacent vertical line portions 33 and the pitch of the vertical line portions 33 adjacent to the buster portion 31 and the bus bar portion 31 are equal to an integral multiple of F in the above equation (1). There wasn't. In Examples 22 and 23, the reception performance did not decrease as in Example 21 at around 210 MHz. Therefore, it has been found that a standing wave is generated in the defogger 3 and the condition for reducing the reception performance of the DAB glass antenna can be derived from the above equation (1).
  • Experiment 5 Length of the vertical element in the case where a plurality of vertical line portions are provided Next, in this experiment 5, five vertical line portions are provided as illustrated in FIG. In this case, the influence on the reception performance of the DAB glass antenna by changing the length of the vertical element was investigated.
  • FIG. 14 shows the state of Experiment 5.
  • a window glass according to Example 23 of Experiment 4 was prepared.
  • the distance D1 between the defogger 3 and the DAB glass antenna 4 was 13.5 mm, and the distance from the lower side of the window glass to the defogger 3 was 138.5 mm.
  • the length L1 of the vertical element 42 of the DAB glass antenna 4 is shortened by 20 mm, and a hot wire portion 32 is newly provided below the shortened length.
  • Window glasses according to Examples 24 to 27 were obtained.
  • the total of the length L1 of the vertical element 42 and the length L2 of the horizontal element 43 was fixed at 240 mm.
  • the length L1 of the vertical element 42 of the DAB glass antenna 4 is 80 mm, 60 mm, 40 mm, and 20 mm, respectively, and the length L2 of the horizontal element 43 is 160 mm, 180 mm, 200 mm and 220 mm.
  • the distances from the lower side of the window glass to the defogger 3 were 118.5 mm, 98.5 mm, 78.5 mm, and 58.5 mm, respectively.
  • the sensitivity of each DAB glass antenna was measured in the same manner as in the above experiments. 15A and 15B show the results.
  • FIG. 15A shows the measurement results of the sensitivity (gain) of Examples 23 to 27 with respect to each frequency of the band 3 of DAB.
  • FIG. 15B shows an average value of sensitivity (gain) of Examples 23 to 27 in the band 3 of DAB. Comparing FIG. 9B and FIG. 11B, when five vertical line portions are provided in the defogger, even if the length of the vertical element of the DAB glass antenna is 20 mm, the receiving sensitivity of the DAB glass antenna It was found that can be secured. Further, as shown in FIGS. 11A and 11B, the reception sensitivity of the DAB glass antenna is particularly good in the window glasses according to Examples 23 to 25, and the reception sensitivity of the DAB glass antenna is received in the window glass according to Example 26. Sensitivity decreased slightly.
  • the distance from the lower side of the window glass to the defogger in other words, the vertical range in which the DAB glass antenna can be installed is set to 78.5 mm or more (for example, 80 mm), so that the DAB glass having good reception sensitivity. It turns out that an antenna can be obtained.
  • the pitch between adjacent vertical line portions 33 and the pitch of the vertical line portions 33 adjacent to the buster portion 31 and the bus bar portion 31 are the same as those in the above-described Embodiment 23. Therefore, in each of Examples 24 to 27, each pitch is not equal to an integral multiple of F in the above formula 1, and it is considered that generation of a standing wave in the defogger 3 could be avoided.
  • the length L3 of the vertical element 52 in Comparative Example 1 of Experiment 1 is 240 mm, and the horizontal length of the ground wire 55 is 310 mm.
  • a window glass according to Example 1 was obtained. That is, in the DAB glass antenna 5 according to Reference Example 1, the length L4 of the horizontal element 53 is 0 mm.
  • the window glass of Reference Examples 2 to 6 was obtained by shortening the length L3 of the vertical element 52 of Reference Example 1 and increasing the length L4 of the horizontal element 53.
  • the length L3 of the vertical element 52 is 100 mm, 80 mm, 60 mm, 40 mm, and 20 mm
  • the length L4 of the horizontal element 53 is 130 mm, 150 mm, 170 mm, 190 mm, and It was 210 mm. That is, in Reference Examples 2 to 6, the vertical element 52 and the horizontal element 53 constitute an L-shaped antenna.
  • the sensitivity of each DAB glass antenna was measured in the same manner as in the above experiments. 17A and 17B show the results.
  • FIG. 17A shows the measurement results of sensitivity (gain) of Reference Examples 1 to 6 for each frequency of DAB band 3.
  • FIG. 17B shows the average value of sensitivity (gain) of Reference Examples 1 to 6 in the band 3 of DAB.
  • the reception of the DAB glass antenna is performed in accordance with the shortening of the length L3 of the vertical element. It turns out that performance falls.
  • Experiment 7 Distance between DAB glass antenna placed on upper side of window glass and defogger Next, in Experiment 7, as illustrated in FIG. The influence on the reception performance of the DAB glass antenna by changing the distance D2 to the DAB glass antenna provided on the upper side of the window glass was examined.
  • FIG. 18 schematically illustrates the window glass according to Reference Example 7 in which the two hot wire portions 32 in Experiment 7 are provided. This experiment 7 is similar to the above experiment 3.
  • a window glass according to Reference Example 7 was obtained by adding a defogger 3B having two hot wire portions 32 to the window glass according to Reference Example 2 of Experiment 6 above.
  • the distance between the two heat ray portions 32 was 32.5 mm.
  • the distance D2 between the defogger 3B and the DAB glass antenna 5 was 247.5 mm.
  • the window glass according to Reference Examples 8 to 12 was obtained by increasing the heat ray portions 32 of the defogger 3B according to Reference Example 7 upward at a pitch of 32.5 mm.
  • the defogger 3B having 3 to 7 heat ray portions 32 is formed, and the distances D2 between the defogger 3B and the DAB glass antenna 5 are 215 mm and 182.5 mm, respectively. 150 mm, 117.5 mm, and 85 mm.
  • the sensitivity of each DAB glass antenna was measured in the same manner as in the above experiments. 19A and 19B show the results.
  • FIG. 19A shows the measurement results of the sensitivity (gain) of Reference Examples 7 to 12 for each frequency of DAB band 3.
  • FIG. 19B shows an average value of sensitivity (gain) of Reference Examples 7 to 12 in the band 3 of DAB.
  • the reception performance of the DAB glass antenna did not change significantly between Reference Examples 7 to 10, and slightly decreased in Reference Examples 11 and 12.
  • the sensitivity of the DAB glass antenna decreased at frequencies near 180 MHz and 240 MHz.
  • the sensitivity of the DAB glass antenna was greatly reduced in the frequency range of 180 MHz to 200 MHz.
  • the sensitivity of the DAB glass antenna is lowered by the interference of the defogger when the defogger is brought closer to the range of less than 85 mm from the DAB glass antenna.
  • the distance between the defogger provided so that the defogger does not interfere with the reception of the signal of the DAB glass antenna and the DAB glass antenna is as follows. It has been found that the arrangement on the lower side of the window glass is shorter than the arrangement on the upper side of the window glass. In other words, these results indicate that the DAB glass antenna can be installed on the lower side rather than the upper side of the window glass so that the installation range of the DAB glass antenna can be shortened in the vertical direction. It has been shown that it can be improved.
  • Experiment 8 Influence of the vertical line portion when the DAB glass antenna is provided on the upper side of the window glass
  • the DAB glass antenna is installed in the window as illustrated in FIG.
  • FIG. 20 illustrates the window glass according to Reference Examples 18 and 19 in which five vertical line portions 33 are provided. This experiment 8 is similar to the above experiment 4.
  • Reference Example 1 of Experiment 6 in which a defogger was not provided and a linear antenna was configured was prepared.
  • Reference Example 3 of Experiment 6 in which an defogger was not provided and an L-shaped antenna was configured was prepared.
  • a window glass according to Reference Example 13 in which no vertical line portion was provided was prepared. .
  • one hot wire portion 32 was added at a pitch of 20 mm at the top of the defogger 3B according to Reference Example 12.
  • the distance D2 between the defogger 3B and the DAB glass antenna 5 was 85 mm.
  • the length between the bus bar portions 31 of the defogger 3B according to Reference Example 13 was 900 mm near the upper end and 970 mm near the lower end, as in Example 13.
  • the window glasses according to the reference examples 14 to 19 were obtained.
  • the vertical linear portion 33 was provided only at the center in the left-right direction. That is, in the window glass according to Reference Example 14, a total of one vertical line portion 33 was provided.
  • each of the window glasses according to Reference Examples 15 to 17 one vertical line portion 33 is provided in the center in the left-right direction, and one vertical line portion is formed in the left-right direction around the one vertical line portion 33.
  • the linear portions 33 are arranged symmetrically. That is, each of the window glasses according to Reference Examples 15 to 17 was provided with a total of three vertical line portions 33.
  • the distance W3 between each vertical line portion 33 arranged in the left-right direction and the vertical line portion 33 arranged in the center was set to 100 mm, 200 mm, and 300 mm.
  • each of the window glasses according to Reference Examples 18 and 19 one vertical line portion 33 is provided at the center in the left-right direction, and two vertical lines are respectively formed in the left-right direction around the one vertical line portion 33.
  • the linear portions 33 are arranged symmetrically. That is, each of the window glasses according to Reference Examples 18 and 19 was provided with a total of five vertical line portions 33.
  • the distance W3 between each vertical line portion 33 arranged on the inner side in the left-right direction and the vertical line portion 33 arranged in the center was 100 mm and 200 mm, respectively.
  • the distance W4 between each vertical line portion 33 arranged on the outer side in the left-right direction and the vertical line portion 33 arranged in the center was set to 300 mm.
  • the sensitivity of each DAB glass antenna was measured in the same manner as in the above experiments. 21A and 21B show the results.
  • FIG. 21A shows the measurement results of the sensitivity (gain) of Reference Examples 3 and 13 to 19 with respect to each frequency of Band 3 of DAB.
  • FIG. 21B shows average values of the sensitivity (gain) of Reference Examples 1, 3 and 13 to 19 in the band 3 of DAB.
  • the receiving performance (sensitivity) of the DAB glass antenna was improved in Reference Examples 15 to 19 in which the defogger was provided with a vertical line portion.
  • the reception performance (sensitivity) of the DAB glass antenna was improved satisfactorily.
  • Reference Examples 15 to 19 are similar to the configuration in which one or a plurality of vertical line portions are added to the defogger in Reference Example 12 of Experiment 7 above. That is, Reference Examples 15 to 19 are configurations in which the DAB glass antenna is disposed on the upper side of the window glass, and the defogger is disposed within the range in which the reception performance of the DAB glass antenna is deteriorated in Experiment 7.
  • the vertical striated portion is provided in the defogger, particularly in the case where a plurality of vertical striated portions are provided in the defogger, even if the DAB glass antenna is disposed on the upper side of the window glass, the DAB It was shown that the reception performance of the glass antenna can be improved.
  • the pitch between the bus bar portions 31 is 0.9 m to 0.97 m (900 mm to 970 mm), and the DAB band 3 is assumed. Thus, it was included in a range twice the F (0.44 m to 0.62 m) derived from the above equation 1.
  • the pitch between each pass bar portion 31 and the vertical line portion 33 is 0.45 m to 0.00. 485 m (450 mm to 485 mm).
  • each pass bar portion 31 and vertical line portion 33 is F (0.44 m to 0.62 m) derived from Equation 1 assuming the band 3 of DAB. It was included in the range.
  • the pitch between the bus bar portion 31 and the vertical line portion 33 adjacent to the bus bar portion 31, and the adjacent vertical line portion 33 are also included.
  • the pitch between the line portions 33 was not an integral multiple of F.
  • Reference Example 21 in which two vertical wire sections 33 were further added to Reference Example 20 was set.
  • the two vertical line portions 33 were arranged at positions 300 mm apart on both sides of the vertical line portion 33 arranged at the center.
  • FIG. 23A and 23B show the current distribution in Reference Example 20.
  • FIG. 23A shows the current distribution when a radio wave of 170 MHz is radiated to Reference Example 20.
  • FIG. 23B shows a current distribution when a 240 MHz radio wave is radiated to Reference Example 20.
  • 24A and 24B show the current distribution in Reference Example 21.
  • FIG. 24A shows a current distribution when a 170 MHz radio wave is radiated to Reference Example 21.
  • FIG. 24B shows a current distribution when a 240 MHz radio wave is radiated to Reference Example 21.
  • FIG. 25 shows the simulation result of the sensitivity (gain) of each reference example (20, 21) for each frequency.
  • FIG. 23A when a 170 MHz radio wave was radiated to the reference example 20 provided with one vertical line portion 33, a standing wave of the radio wave was generated in the defogger of the reference example 20.
  • FIG. 23B when a 240 MHz radio wave was radiated, such a standing wave was not generated in the defogger of Reference Example 20.
  • FIGS. 24A and 24B in Reference Example 21 provided with the three vertical line portions 33, even when 170 MHz and 240 MHz radio waves were radiated, no standing waves of the radio waves were generated.
  • the pitch between each bus bar portion 31 and the vertical wire portion 33 is 0.55 m (550 mm), and 0.44 m to 0 described above assuming the band 3 of DAB. It is included in the range of .62m.
  • the distance between the portion sandwiched between the bus bar portion and the vertical line portion and the portion sandwiched between the adjacent vertical line portions is 250 mm and 300 mm, respectively. It was not equal to an integral multiple of 1 F.
  • no standing wave of radio waves was generated in the defogger. Therefore, it has been found that according to the above equation 1, it is possible to predict whether or not a standing wave of radio waves is generated in the defogger.
  • the distance between the portion sandwiched between the bus bar portion and the vertical line portion and the portion sandwiched between the adjacent vertical line portions is vertical so that it is not equal to an integer multiple of F in the above equation (1). It has been found that by disposing the filament part, it is possible to prevent the reception performance of the DAB glass antenna from being deteriorated. Note that this decrease in reception performance is presumed to be due to DAB radio waves being trapped in the defogger. That is, the defogger is likely to receive radio waves in that frequency band, and it is assumed that reception of radio waves by the DAB glass antenna is hindered.
  • Example (28, 29) the sensitivity of each DAB glass antenna was measured by the method similar to the said experiment 1 etc. except the following two conditions.
  • ⁇ Glass plate mounting angle 45 degree tilt with respect to the lower side in the vertical direction, 41 degree tilt with the central point in the vertical direction, 37 degree tilt with the upper side in the vertical direction with respect to the horizontal direction.
  • Frequency resolution 174 MHz Measured every 3MHz in the range of ⁇ 240MHz
  • FIG. 27 shows the measurement results of the sensitivity (gain) of each example (28, 29) for each frequency of the band 3 of DAB.
  • the reception performance of the DAB glass antenna can be greatly reduced.
  • the glass plate is inclined from a relatively vertical position and the length of the vertical element 43D is relatively short, a certain level of reception performance can be ensured. did it.
  • the DAB glass antenna is arranged on the lower side of the window glass, and the pitch between the bus bar part and the vertical line part and between the adjacent vertical line parts is equal to an integral multiple of F in the above equation (1). It is assumed that it is caused by the fact that it was not made. That is, according to each feature of the present invention, it was found that a certain level of reception performance can be ensured even when the installation conditions of the DAB glass antenna are poor.

Landscapes

  • Details Of Aerials (AREA)
  • Support Of Aerials (AREA)

Abstract

La présente invention concerne une technologie qui permet d'améliorer la réception d'émissions de radiodiffusion audionumérique (RAN). Une vitre de véhicule selon un aspect de la présente invention comprend une feuille de verre et une antenne de vitre pour RAN, qui est formée sur une surface de ladite feuille de verre. L'antenne de verre pour RAN comprend une unité d'alimentation électrique positionnée côté bord inférieur de la feuille de verre, et un premier élément de forme linéaire s'étendant dans la direction verticale.
PCT/JP2016/063637 2015-05-22 2016-05-06 Vitre de véhicule et antenne de vitre pour radiodiffusion audionumérique WO2016190064A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2017520592A JPWO2016190064A1 (ja) 2015-05-22 2016-05-06 車両用の窓ガラス及びｄａｂ用ガラスアンテナ
EP16799772.5A EP3300168A4 (fr) 2015-05-22 2016-05-06 Vitre de véhicule et antenne de vitre pour radiodiffusion audionumérique

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015-104166 2015-05-22
JP2015104166 2015-05-22

Publications (1)

Publication Number Publication Date
WO2016190064A1 true WO2016190064A1 (fr) 2016-12-01

Family

ID=57392796

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2016/063637 WO2016190064A1 (fr) 2015-05-22 2016-05-06 Vitre de véhicule et antenne de vitre pour radiodiffusion audionumérique

Country Status (3)

Country Link
EP (1) EP3300168A4 (fr)
JP (3) JPWO2016190064A1 (fr)
WO (1) WO2016190064A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018131647A1 (fr) 2017-01-11 2018-07-19 日本板硝子株式会社 Vitre de fenêtre
WO2019049783A1 (fr) * 2017-09-05 2019-03-14 日本板硝子株式会社 Vitre arrière et portière arrière comportant ladite vitre arrière
JP2019041358A (ja) * 2017-08-29 2019-03-14 日本板硝子株式会社 車両用窓ガラス
WO2019111996A1 (fr) * 2017-12-06 2019-06-13 日本板硝子株式会社 Vitre arrière
CN110168806A (zh) * 2017-01-11 2019-08-23 日本板硝子株式会社 车辆用窗玻璃
JP2021164073A (ja) * 2020-03-31 2021-10-11 Ａｇｃ株式会社 車両用窓ガラス
JP7468076B2 (ja) 2020-03-31 2024-04-16 Ａｇｃ株式会社 車両用窓ガラス

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3300168A4 (fr) * 2015-05-22 2018-12-05 Nippon Sheet Glass Company, Limited Vitre de véhicule et antenne de vitre pour radiodiffusion audionumérique
JP7385833B2 (ja) * 2019-02-26 2023-11-24 大日本印刷株式会社 パターン導電体、発熱板及び移動体

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000114839A (ja) * 1998-10-05 2000-04-21 Harada Ind Co Ltd 車両用窓ガラスアンテナ装置
JP2006197184A (ja) * 2005-01-13 2006-07-27 Asahi Glass Co Ltd 車両用ガラスアンテナ
WO2011158602A1 (fr) * 2010-06-16 2011-12-22 セントラル硝子株式会社 Antenne de verre à vitres destinée à un véhicule
JP2015056716A (ja) * 2013-09-11 2015-03-23 セントラル硝子株式会社 バックドア及びガラスアンテナ

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06164229A (ja) * 1992-11-19 1994-06-10 Nippon Sheet Glass Co Ltd ガラスアンテナ
JPH08204423A (ja) * 1995-01-31 1996-08-09 Harada Ind Co Ltd 窓ガラスアンテナ装置
JP2000252732A (ja) * 1999-02-25 2000-09-14 Asahi Glass Co Ltd 自動車用ガラスアンテナ
US7558555B2 (en) * 2005-11-17 2009-07-07 Delphi Technologies, Inc. Self-structuring subsystems for glass antenna
JP4803004B2 (ja) * 2006-11-28 2011-10-26 旭硝子株式会社 自動車用高周波ガラスアンテナ及び窓ガラス板
WO2011105602A1 (fr) * 2010-02-26 2011-09-01 株式会社Ｉｎｇｅｎ ＭＳＬ Unité d'oscillateur ultrasonore et sonde ultrasonore
JP5633295B2 (ja) * 2010-10-13 2014-12-03 セントラル硝子株式会社 車両用アンテナ
JP2012105035A (ja) * 2010-11-10 2012-05-31 Panasonic Corp 車両用アンテナ装置
EP3300168A4 (fr) * 2015-05-22 2018-12-05 Nippon Sheet Glass Company, Limited Vitre de véhicule et antenne de vitre pour radiodiffusion audionumérique

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000114839A (ja) * 1998-10-05 2000-04-21 Harada Ind Co Ltd 車両用窓ガラスアンテナ装置
JP2006197184A (ja) * 2005-01-13 2006-07-27 Asahi Glass Co Ltd 車両用ガラスアンテナ
WO2011158602A1 (fr) * 2010-06-16 2011-12-22 セントラル硝子株式会社 Antenne de verre à vitres destinée à un véhicule
JP2015056716A (ja) * 2013-09-11 2015-03-23 セントラル硝子株式会社 バックドア及びガラスアンテナ

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3570370A4 (fr) * 2017-01-11 2020-08-12 Nippon Sheet Glass Company, Limited Vitre de fenêtre
WO2018131647A1 (fr) 2017-01-11 2018-07-19 日本板硝子株式会社 Vitre de fenêtre
EP3570369A4 (fr) * 2017-01-11 2020-09-02 Nippon Sheet Glass Company, Limited Vitre de fenêtre de véhicule automobile
CN110168805A (zh) * 2017-01-11 2019-08-23 日本板硝子株式会社 窗玻璃
CN110168806A (zh) * 2017-01-11 2019-08-23 日本板硝子株式会社 车辆用窗玻璃
JP2019041358A (ja) * 2017-08-29 2019-03-14 日本板硝子株式会社 車両用窓ガラス
EP3680118A4 (fr) * 2017-09-05 2021-05-12 Nippon Sheet Glass Company, Limited Vitre arrière et portière arrière comportant ladite vitre arrière
WO2019049783A1 (fr) * 2017-09-05 2019-03-14 日本板硝子株式会社 Vitre arrière et portière arrière comportant ladite vitre arrière
WO2019111996A1 (fr) * 2017-12-06 2019-06-13 日本板硝子株式会社 Vitre arrière
JPWO2019111996A1 (ja) * 2017-12-06 2020-12-10 日本板硝子株式会社 リアガラス
JP7138658B2 (ja) 2017-12-06 2022-09-16 日本板硝子株式会社 リアガラス
US11575192B2 (en) 2017-12-06 2023-02-07 Nippon Sheet Glass Company, Limited Rear glass
JP2021164073A (ja) * 2020-03-31 2021-10-11 Ａｇｃ株式会社 車両用窓ガラス
JP7392550B2 (ja) 2020-03-31 2023-12-06 Ａｇｃ株式会社 車両用窓ガラス
JP7468076B2 (ja) 2020-03-31 2024-04-16 Ａｇｃ株式会社 車両用窓ガラス

Also Published As

Publication number Publication date
JP2021073771A (ja) 2021-05-13
EP3300168A1 (fr) 2018-03-28
EP3300168A4 (fr) 2018-12-05
JP7092901B2 (ja) 2022-06-28
JPWO2016190064A1 (ja) 2018-05-17
JP7365458B2 (ja) 2023-10-19
JP2022130499A (ja) 2022-09-06

Similar Documents

Publication Publication Date Title
WO2016190064A1 (fr) Vitre de véhicule et antenne de vitre pour radiodiffusion audionumérique
EP3327862B1 (fr) Antenne sur vitre et vitre de fenêtre de véhicule comprenant l'antenne sur vitre
JP6847944B2 (ja) 車両用窓ガラス
JP2017005354A (ja) 車両用ガラスアンテナ及び車両用アンテナを備えた後部窓ガラス
WO2015137108A1 (fr) Antenne de verre d'automobile
JP2022173525A (ja) 車両用窓ガラス
WO2017006970A1 (fr) Vitre de fenêtre de véhicule
JPWO2019111996A1 (ja) リアガラス
WO2018131647A1 (fr) Vitre de fenêtre
JP6945439B2 (ja) 車両用窓ガラス
WO2018131645A1 (fr) Vitre de fenêtre de véhicule automobile
JP7392550B2 (ja) 車両用窓ガラス
JP5633295B2 (ja) 車両用アンテナ
JP6843715B2 (ja) 車両用窓ガラス
JP2016127297A (ja) 車両用ガラスアンテナ
US12100904B2 (en) Glass antenna structure
JP2024150617A (ja) 車両用窓ガラス
WO2022244786A1 (fr) Verre de vitre de véhicule
JPH0583020A (ja) 車両用のガラスアンテナ
JPH0563421A (ja) 車両用のガラスアンテナ
JPH04329003A (ja) 車両用のガラスアンテナ

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16799772

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2017520592

Country of ref document: JP

Kind code of ref document: A

REEP Request for entry into the european phase

Ref document number: 2016799772

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: DE