WO2012070303A1 - Antenne - Google Patents

Antenne Download PDF

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Publication number
WO2012070303A1
WO2012070303A1 PCT/JP2011/071582 JP2011071582W WO2012070303A1 WO 2012070303 A1 WO2012070303 A1 WO 2012070303A1 JP 2011071582 W JP2011071582 W JP 2011071582W WO 2012070303 A1 WO2012070303 A1 WO 2012070303A1
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WO
WIPO (PCT)
Prior art keywords
hot
ground
wire
filament
feeding point
Prior art date
Application number
PCT/JP2011/071582
Other languages
English (en)
Japanese (ja)
Inventor
友嗣 片田
山本　政博
Original Assignee
セントラル硝子株式会社
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 セントラル硝子株式会社 filed Critical セントラル硝子株式会社
Priority to CN2011800564422A priority Critical patent/CN103222112A/zh
Priority to EP11843713.6A priority patent/EP2645473A1/fr
Publication of WO2012070303A1 publication Critical patent/WO2012070303A1/fr

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
    • H01Q9/26—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole with folded element or elements, the folded parts being spaced apart a small fraction of operating wavelength
    • 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
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
    • H01Q9/42—Resonant antennas with feed to end of elongated active element, e.g. unipole with folded element, the folded parts being spaced apart a small fraction of the operating wavelength

Definitions

  • the present invention relates to an antenna device, and more particularly to an antenna that is provided on an automobile window glass and is suitable for receiving digital terrestrial broadcast waves.
  • Japanese Patent Application Laid-Open No. 2009-164678 by the present applicant proposes a terrestrial digital line antenna provided in a defogger upper margin of a rear window glass of an automobile.
  • Japanese Patent Application Laid-Open No. 2009-33687 by the present applicant proposes a terrestrial digital linear antenna provided at a corner portion of a front window glass, a rear window glass, and a side window glass of an automobile. .
  • the antenna described in Japanese Patent Application Laid-Open No. 2009-164678 is a linear antenna disposed on the rear window glass which is difficult to obtain high antenna performance due to the influence of the defogger.
  • the area occupied by the antenna is as large as about 50 mm to 100 mm in both the vertical and horizontal directions.
  • the antenna described in Japanese Patent Application Laid-Open No. 2009-33687 has a smaller area than the antenna described in Patent Document 1, but is usually formed in a band shape around the inside of the window glass of an automobile.
  • the antenna When the antenna is disposed on the black ceramic layer, the antenna cannot be covered with the ceramic layer, so that the antenna becomes conspicuous when viewed from the outside of the vehicle.
  • the present invention has been made in view of such a problem, and the area occupied by the glass antenna is small and the surrounding area of the vehicle window glass is ensured while ensuring the antenna receiving performance higher than that of conventional terrestrial digital television broadcast waves.
  • An object of the present invention is to provide an inconspicuous glass antenna by making the whole antenna easy to be covered with the black ceramic layer formed on the surface.
  • the present invention is an antenna provided on a window glass of a vehicle and provided with a hot side element and a ground side element, at a position close to the upper corner of the metal flange constituting the opening of the window,
  • a hot-side feed point and a ground-side feed point are provided so as to be arranged side by side, the hot-side element is connected to the hot-side feed point, and the ground-side element is connected to the ground-side feed point.
  • the hot side element extends substantially horizontally along the metal flange in a direction away from the hot side feeding point, the ground side element has a ground side first filament, and further includes a ground side second.
  • the ground-side first wire being connected to the ground-side feeding point, extending downward along the metal flange
  • the earth-side second filament is connected to the earth-side feeding point, and extends below the center side of the window glass substantially parallel to the earth-side first filament from the earth-side first filament
  • the ground-side third filament is connected to the ground-side feeding point and extends upward on the center side of the window glass from the ground-side feeding point and the hot-side feeding point.
  • the antenna pattern can be reduced without deteriorating the antenna performance.
  • the front enlarged view of the antenna pattern of Example 1 of this invention The front enlarged view of the antenna pattern of Example 2 of this invention.
  • the front enlarged view of the antenna pattern of Example 8 of this invention The front enlarged view of the antenna pattern of a comparative example.
  • BRIEF DESCRIPTION OF THE DRAWINGS The whole figure which provided the glass antenna of Example 1 of this invention in the front window glass of the motor vehicle.
  • the frequency characteristic figure of a comparative example and Example 1 of this invention The frequency characteristic figure of a comparative example and Example 7 of this invention.
  • the present invention relates to a glass antenna that is provided in the vicinity of the upper corner of the front window glass of an automobile and that can receive a terrestrial digital television broadcast wave having a frequency of 470 MHz to 710 MHz with high performance.
  • a hot-side feeding point 3 and a ground-side feeding point 4 are provided in the vicinity of a corner portion of a window glass plate 2 and connected to the hot-side feeding point 3.
  • the hot-side element 10 and the ground-side element 20 connected to the ground-side feeding point 4 are connected to the hot-side feeding point 3 and the ground-side feeding point 4 respectively.
  • the core wire and the outer conductor are connected.
  • the hot-side element 10 is connected to the hot-side first wire 11 connected to the hot-side feeding point 3 and the tip of the hot-side first wire 11 and extends along the upper portion of the body flange 1 (for example, the body flange (In a horizontal direction parallel to the upper portion of 1) and the hot-side second filament 12.
  • the hot-side first filament 11 extends obliquely upward toward the center line direction of the window glass 2, but may extend substantially horizontally or vertically upward. Further, the hot-side first filament 11 may not be provided, and the hot-side second filament 12 may be directly connected to the hot-side feeding point 3 as shown in FIG.
  • the length of the hot-side second filament 12 and the distance from the body flange 1 are adjusted so as to obtain suitable reception performance. can do.
  • the total length of the hot-side first filament 11 and the hot-side second filament 12 is ⁇ ⁇ ⁇ / 6 to ⁇ ⁇ ⁇ / 2 ( ⁇ : wavelength reduction rate of glass, ( ⁇ : wavelength of the center frequency of the received radio wave) and the distance between the hot second filament and the upper portion of the body flange 1 is 10 mm to 25 mm, it is possible to obtain suitable reception performance.
  • the earth side element 20 is composed of a ground side first wire 21, a ground side second wire, and a ground side third wire.
  • the ground-side second wire has an L-shape composed of a downward wire 22 and a connecting wire 24 of the ground-side second wire, and the ground-side third wire is the ground-side wire.
  • the upward line 23 and the connecting line 24 of the three wires form an L shape. All of the ground side first wire, the ground side second wire, and the ground side third wire are connected to the ground side feed point 4.
  • the connecting wire may have one wire 24 shared by the ground-side second wire and the ground-side third wire. As shown in FIG. The connecting wire 24 of the side second wire and the connecting wire 25 of the ground side third wire may be provided separately.
  • the first ground wire 21 is extended along the side of the body flange 1 from the ground side feeding point 4 (for example, vertically downward parallel to the side of the body flange 1). By changing one or both of the length of the ground-side first wire 21 and the distance between the ground-side first wire 21 and the side portion of the body flange 1, the grounding is performed so that suitable reception performance can be obtained. The capacitance between the first side filament 21 and the body flange 1 can be adjusted.
  • the length of the ground-side first filament 21 is ⁇ ⁇ ⁇ / 4 to ⁇ ⁇ ⁇ / 2 ( ⁇ is the wavelength of the center frequency of the reception band), and the ground-side first filament 21 and the body flange 1 side
  • a suitable reception performance can be obtained by adjusting the distance to the unit to 5 mm to 75 mm.
  • the downward line 22 of the ground side second line is arranged in parallel with the ground side first line 21.
  • the ground side second wire is the ground side first wire. It is possible to obtain the same effect as if it is electrically strongly coupled to the strip and widen the line width of the ground-side first strip, and the reception performance of the antenna can be improved.
  • the distance a between the ground-side first wire 21 and the downward-side wire 22 of the ground-side second wire is preferably ⁇ ⁇ ⁇ / 50 to ⁇ ⁇ ⁇ / 10. This is because, if the interval is wider than this range, the electrical coupling between the ground side second wire and the ground side first wire is weakened, so that an optimum impedance cannot be obtained.
  • the impedance of the antenna can be adjusted by adjusting the length of the third wire on the ground side. And by this impedance adjustment, the antenna can be widened. For example, when the length of the ground-side third filament is adjusted between ⁇ ⁇ ⁇ / 20 and ⁇ ⁇ ⁇ / 5 (where ⁇ is the wavelength of the center frequency of the reception band), good antenna performance can be obtained. it can.
  • the distance b between the hot-side feed point 3 and the ground-side third filament is preferably ⁇ ⁇ ⁇ / 50 or more. This is because if the distance b is less than ⁇ ⁇ ⁇ / 50, the electrical coupling between the ground-side third wire and the hot-side feeding point 3 becomes strong, and the antenna performance deteriorates.
  • the ground side element 20 is composed of three wires, a ground side first wire 21, a ground side second wire, and a ground side third wire.
  • the ground side second wire may not be provided, and the ground side first wire and the ground side third wire may be used.
  • the ground side third wire may not be provided, and only the ground side first wire and the ground side second wire may be configured.
  • the ground side element 20 may be constituted by a ground side first wire, a ground side second wire, and a ground side third wire.
  • the ground-side second wire is directly connected to the ground-side feeding point 4.
  • the ground-side second wire and the ground-side third wire share all of the connecting wires 24.
  • the downward line 22 is connected in the middle of the connection line 24, the upward line 23 of the ground side third line is connected to the tip of the connection line 24, and a part of the connection line 24 is shared. May be.
  • the downward line 22 of the ground side second wire is connected to the tip of the connection line 24, and the upward line 23 of the ground side third line is connected to the middle of the connection line 24. Good.
  • the ground side second wire and the ground side third wire share the connection wire 24, but the connection wire for the ground side second wire and the ground side second wire Connection wires for three wires are separately provided, and the ground side second wire and the ground side third wire are separately extended from the ground side feeding point 4 so as not to have a shared portion. Good.
  • the hot side element 10 is provided with a hot side third filament 13 substantially parallel to the hot side second filament 12 in addition to the hot side second filament 12. Also good. That is, the hot side third filament 13 is configured by a substantially horizontal filament 13a and a substantially vertical filament 13b.
  • the hot-side third filament 13 is an element mainly provided for impedance adjustment, and good antenna performance is obtained by setting the length of the hot-side third filament to ⁇ ⁇ ⁇ / 6 or less. Can do.
  • the hot-side third filament 13 can be connected to any position of the hot-side first filament 11 and the hot-side second filament 12.
  • one end of the substantially vertical filament 13 b is connected to the tip of the hot-side first filament 11.
  • one end of the substantially vertical line 13 b is directly connected to the hot-side feeding point 3.
  • the hot-side third filament 13 may be configured by only the substantially horizontal filament 13a, and the substantially horizontal filament 13a may be directly connected to the hot-side feeding point 3.
  • the hot side fourth filament that extends in a different direction from the hot side second filament 12.
  • the hot side element 10 may be constituted by 14.
  • the hot-side fourth wire 14 is directly connected to the hot-side feeding point 3.
  • the hot-side fourth wire 14 is composed of a horizontal wire 14b connected to the hot-side feeding point 3 and a downward wire 14a connected to the tip of the horizontal wire 14b.
  • the downward wire 14a is electrically and capacitively coupled to the upward wire 23 by being arranged in parallel and close to the upward wire 23 of the ground side third wire, and the hot-side fourth wire 14a.
  • the antenna of the embodiment of the present invention has an antenna pattern arranged in line symmetry with respect to the center line of the front window glass at the symmetrical position of the front window glass.
  • An antenna that performs diversity reception may be configured.
  • the antenna of the present embodiment is formed by printing a width of each filament at 0.7 mm with a conductive ceramic paste at a predetermined position on the indoor surface side of the window glass 2, drying, and baking by a heating furnace.
  • An antenna pattern may be provided on the surface of another insulator.
  • the antenna attached to the window glass of a building, a wall surface, and a roof may be sufficient.
  • the antenna pattern may be formed by directly printing on the surface of the window glass 1 of the vehicle, or the antenna pattern may be formed on a synthetic resin sheet to be attached to a desired position of the window glass 1.
  • the core wire of a coaxial cable (not shown) extended from a tuner (not shown) is connected to the hot side feed point 3 and the outer conductor is connected to the ground side feed point 4.
  • the antenna pattern can be reduced without deteriorating the antenna performance. For this reason, most of the antenna pattern can be covered with the black ceramic layer formed on the peripheral edge of the front window glass, and the glass antenna can be arranged so as not to stand out and disturb the visual field. Moreover, since the pattern of the glass antenna has become simple, the development man-hours for tuning can be reduced.
  • FIG. 1 is an enlarged front view of a glass antenna provided in the vicinity of an upper corner portion of a front window glass of an automobile, showing an antenna pattern of Example 1 of the present invention.
  • the hot-side feeding point 3 and the ground-side feeding point 4 are installed close to each other so as to be close to the upper corner portion of the front window glass.
  • the hot element 10 is connected, and the earth element 20 is connected to the earth feeding point 4.
  • the hot-side element 10 is connected to the hot-side power feeding point 3, is connected to the hot-side first filament 11 extending obliquely upward, the tip of the hot-side first filament 11, and parallel to the upper portion of the body flange 1. It is comprised from the hot side 2nd filament 12 to extend
  • the ground-side element 20 includes a ground-side first wire 21, a ground-side second wire-down wire 22, an earth-side third wire-up wire 23, and a ground-side second wire and a ground-side wire.
  • the connecting line 24 is shared by the three lines.
  • the ground-side first wire 21 extends in parallel with the side portion of the body flange 1, and one end of the wire is connected to the ground-side feeding point 4 and extends downward from the ground-side feeding point 4. It is a filament.
  • connection wire 24 extending in the center line direction of the window glass 1, and the ground-side first wire downward from the tip of the connection wire 24. It is an L-shaped line composed of downward line 22 extending in parallel with the line.
  • the ground-side third filament is an L-shaped filament composed of a connection filament 24 and an upward filament 23 extending upward from the tip of the connection filament 24.
  • the length of each wire of the antenna of the present embodiment is such that the length of the hot side first wire 11 is 20 mm, the length of the hot side second wire 12 is 50 mm, and the ground side first
  • the length of the line 21 is 100 mm
  • the length of the connecting line 24 is 5 mm
  • the length of the downward line 22 of the ground side second line 80 is 80 mm
  • the upward line of the ground side third line The length of the strip 23 is 40 mm.
  • the distance between the hot second wire 12 and the upper portion of the body flange 1 is 15 mm, and the distance between the ground first wire 21 and the side of the body flange 1 is 15 mm.
  • Each of the hot-side feeding point 3 and the ground-side feeding point 4 has a square solid pattern with a side of 10 mm, and a hot-side terminal and a ground-side terminal of a feeding terminal (not shown) are connected to each feeding point. ing.
  • the distance between the apex closest to the body flange 1 of the hot-side feeding point 3 and the body flange 1 is 6 mm, and the distance between the hot-side feeding point 3 and the ground-side feeding point 4 is 20 mm.
  • the glass antenna of this example is obtained by adjusting the size of each element so as to match the frequency (620 MHz) in the vicinity of the center frequency of terrestrial digital broadcasting, assuming that the wavelength shortening rate ⁇ of the glass is 0.7.
  • the dimensions are not limited to the dimensions described above.
  • the performance of the antenna of the present embodiment is based on a comparison of the frequency characteristic diagrams of the antenna of the first embodiment shown in FIG. 12 and the antenna of the comparative example of FIG. 9 described later (solid line: Example 1, broken line: comparative example). I can understand.
  • FIG. 12 shows the results of measurement with the antenna of Example 1 and the antenna of the comparative example provided on the front window glass 2 attached to a vehicle. From FIG. 12, it can be seen that the antenna of Example 1 has higher performance than the antenna of the comparative example at almost all frequencies of 470 MHz to 710 MHz, which is the frequency band of terrestrial digital broadcasting.
  • FIG. 10 shows two antennas of Example 1 provided in the upper corner portion of the front window 2. As shown in FIG. 10, by performing diversity reception with two antennas, it is possible to obtain a higher reception performance than when only one antenna pattern is provided.
  • FIG. 2 is an enlarged front view of a glass antenna provided in the vicinity of an upper corner portion of a front window glass of an automobile, showing an antenna pattern of Example 2 of the present invention.
  • the antenna of the second embodiment is different from the antenna of the first embodiment in that the second ground wire is not provided, and is the same as the antenna of the first embodiment in other points. For this reason, the same code
  • FIG. 3 is an enlarged front view of a glass antenna provided in the vicinity of an upper corner portion of a front window glass of an automobile, showing an antenna pattern of Example 3 of the present invention.
  • the upward line 23 of the ground side third line is connected to the tip of the connection line 24, and the downward line of the ground side second line is in the middle of the connection line 24.
  • the configuration differs from the antenna of the first embodiment in that 22 is connected. That is, in the antenna of Example 3, the ground side second wire and the ground side third wire share only a part of the connection wire 24.
  • FIG. 4 is an enlarged front view of a glass antenna provided in the vicinity of an upper corner portion of a front window glass of an automobile, showing an antenna pattern of Example 4 of the present invention.
  • the antenna of the fourth embodiment is different from the antenna of the second embodiment in that the hot side third wire 13 is further connected to the connecting portion between the hot side first wire and the hot side second wire, Other points are the same as those of the antenna of the second embodiment. For this reason, the same code
  • the hot-side third filament 13 is connected to the substantially vertical filament 13b extending downward from the connection portion between the hot-side first filament and the hot-side second filament, and to the tip of the approximately vertical filament 13b. It is comprised from the substantially horizontal filament 13a extended
  • the impedance becomes low and good antenna performance is obtained.
  • the hot side third filament 13 and the hot side first filament 11 and The antenna impedance varies depending on the connection position with the hot-side second filament 12. For this reason, it is good to adjust the length of the hot side 3rd filament 13 so that favorable antenna performance may be obtained.
  • FIG. 5 is an enlarged front view of a glass antenna provided in the vicinity of an upper corner portion of a front window glass of an automobile, showing an antenna pattern of Example 5 of the present invention.
  • the antenna of the fifth embodiment is different from the antenna of the first embodiment in that the hot-side third wire 13 is connected to the hot-side feeding point 3 and the ground-side third wire is not provided from the ground-side element 20.
  • the other points are the same as those of the antenna of the first embodiment. For this reason, the same code
  • the impedance can be adjusted by adjusting the length of the hot-side third filament 13, and good antenna performance can be obtained.
  • FIG. 6 is an enlarged front view of a glass antenna provided in the vicinity of an upper corner portion of a front window glass of an automobile, showing an antenna pattern of Example 6 of the present invention.
  • the antenna of Example 6 differs from the antenna of Example 2 in that the hot-side fourth filament 14 is provided, and is otherwise the same as the antenna of Example 2. For this reason, the same code
  • the hot-side fourth wire 14 is connected to the hot-side feeding point 3 and connected to the horizontal wire 14b extending in the center line direction of the window glass 2 and the tip of the horizontal wire 14b, and the ground-side third wire It is comprised from the downward line 14a extended
  • the size of the ground side third filament is changed and adjusted from that of Example 2 so that good antenna performance can be obtained.
  • the length is the same as that of the antenna line in Example 2.
  • FIG. 7 is an enlarged front view of a glass antenna provided in the vicinity of an upper corner portion of a front window glass of an automobile, showing an antenna pattern of Example 7 of the present invention.
  • the antenna of Example 7 does not include the hot-side first filament 11 and the hot-side third filament 13, but the hot-side second filament is directly connected to the hot-side feeding point 3. Unlike the antenna 5, the other points are the same as those of the antenna of the fifth embodiment. For this reason, the same code
  • the lengths of the antennas of this embodiment are such that the length of the hot second wire is 50 mm, the length of the ground first wire 21 is 110 mm, and the ground side second wire.
  • the length of the connecting wire 24 of the strip is 20 mm, and the length of the downward strip 22 of the ground-side second strip is 85 mm.
  • the distance between the hot second wire 12 and the upper portion of the body flange 1 is 15 mm, and the distance between the ground first wire 21 and the side of the body flange 1 is 15 mm.
  • Each of the hot-side feeding point 3 and the ground-side feeding point 4 has a square solid pattern with a side of 10 mm, and a hot-side terminal and a ground-side terminal of a feeding terminal (not shown) are connected to each feeding point. ing.
  • the distance between the apex closest to the body flange 1 of the hot-side feeding point 3 and the body flange 1 is 6 mm, and the distance between the hot-side feeding point 3 and the ground-side feeding point 4 is 20 mm.
  • FIG. 8 shows an antenna pattern of Example 8 of the present invention, and is a front enlarged view of a glass antenna provided in the vicinity of an upper corner portion of a front window glass of an automobile.
  • the antenna of the eighth embodiment is different from the antenna of the first embodiment in that the connecting wire 24 is not shared by the ground side second wire and the ground side third wire. 1 antenna. For this reason, the same code
  • the earth side element 20 includes a ground side first filament 21, a ground side second filament, and a ground side third filament.
  • the ground-side second wire is composed of a connecting wire 24 connected to the ground-side feeding point 4 and a downward wire 22 connected to the tip of the connecting wire 24.
  • the ground side third wire is composed of a connecting wire 25 connected to the ground side feeding point 4 and an upward wire 23 connected to the tip of the connecting wire 25.
  • the downward line 22 may be connected in the middle of the connection line 24 instead of the tip of the connection line 24.
  • the upward line 23 may be connected in the middle of the connection line 25 instead of the tip of the connection line 25.
  • the glass antenna of this example is obtained by adjusting the size of each element so as to match the frequency (620 MHz) in the vicinity of the center frequency of terrestrial digital broadcasting, assuming that the wavelength shortening rate ⁇ of the glass is 0.7.
  • the dimensions are not limited to the dimensions described above.
  • the performance of the antenna of this example is based on a comparison of the frequency characteristic diagrams of the antenna of Example 7 shown in FIG. 13 and the antenna of the comparative example of FIG. 9 described later (solid line: Example 7, broken line: comparative example). I can understand.
  • FIG. 13 shows the results of measurement with the antenna of Example 1 and the antenna of the comparative example provided on the front window glass 2 attached to a vehicle. From FIG. 13, it can be seen that the antenna of Example 1 has higher performance than the antenna of the comparative example at almost all frequencies of 470 MHz to 710 MHz, which is the frequency band of terrestrial digital broadcasting.
  • FIG. 11 shows two antennas of Example 1 provided in the upper corner portion of the front window glass 2. As shown in FIG. 11, by performing diversity reception with two antennas, it is possible to obtain higher reception performance than when only one antenna is provided.
  • FIG. 9 shows an antenna pattern of a comparative example compared with the antenna of the present invention, and is an enlarged front view of a glass antenna provided in the vicinity of an upper corner portion of a front window glass of an automobile.
  • the antenna of the comparative example is based on the antenna described in Patent Document 2, and the wavelength shortening rate ⁇ of the glass is assumed to be 0.7, and the length of each element is a frequency near the center frequency of terrestrial digital broadcasting (620 MHz). It is the antenna pattern adjusted to suit.
  • the hot-side feeding point 3 and the ground-side feeding point 4 are installed close to each other so as to be close to the upper corner portion of the front window glass.
  • the hot element 10 is connected, and the earth element 20 is connected to the earth feeding point 4.
  • the hot-side element 10 is connected to the hot-side power feeding point 3, is connected to the hot-side first filament 11 extending obliquely upward, the tip of the hot-side first filament 11, and parallel to the upper portion of the body flange 1.
  • the earth side element 20 is connected to the earth side feeding point 4 and is constituted only by the earth side first wire 21 extending vertically downward to the side portion of the body flange 1.
  • At least one of the ground side second wire and the ground side third wire for adjusting the impedance is connected to the ground side element.
  • the antenna of the example is different in that no impedance adjusting wire is connected to the ground side element.

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Abstract

L'invention concerne une antenne munie d'un élément côté actif et d'un élément côté terre. L'élément côté actif s'étend approximativement dans le sens horizontal le long d'une bride métallique dans une direction qui le sépare d'un point d'alimentation en énergie côté actif. L'élément côté terre présente une première ligne côté terre qui s'étend vers le bas le long de la bride métallique et présente de plus une deuxième ligne côté terre qui s'étend vers le bas approximativement en parallèle avec la première ligne côté terre et/ou une troisième ligne côté terre qui s'étend vers le haut et qui se trouve du coté central du verre de vitre par rapport au point d'alimentation en énergie côté actif et à un point d'alimentation en énergie côté terre.
PCT/JP2011/071582 2010-11-25 2011-09-22 Antenne WO2012070303A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN2011800564422A CN103222112A (zh) 2010-11-25 2011-09-22 天线
EP11843713.6A EP2645473A1 (fr) 2010-11-25 2011-09-22 Antenne

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2010262491A JP5671971B2 (ja) 2010-11-25 2010-11-25 車両用アンテナ
JP2010-262491 2010-11-25

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WO2012070303A1 true WO2012070303A1 (fr) 2012-05-31

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EP (1) EP2645473A1 (fr)
JP (1) JP5671971B2 (fr)
CN (1) CN103222112A (fr)
WO (1) WO2012070303A1 (fr)

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Publication number Priority date Publication date Assignee Title
JP6251476B2 (ja) * 2012-12-20 2017-12-20 セントラル硝子株式会社 車両用ガラスアンテナ
JP6507713B2 (ja) * 2014-03-26 2019-05-08 セントラル硝子株式会社 自動車用ガラスアンテナ
EP3611795B1 (fr) * 2017-04-12 2022-06-15 Central Glass Company, Limited Antenne et vitre de fenêtre
EP3847581B1 (fr) * 2018-09-03 2023-09-06 Saint-Gobain Glass France Vitre de véhicule avec transpondeur
CN111989820A (zh) 2019-03-22 2020-11-24 法国圣戈班玻璃厂 运载工具玻璃板

Citations (2)

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Publication number Priority date Publication date Assignee Title
JP2009033687A (ja) 2007-07-31 2009-02-12 Central Glass Co Ltd 車両用ガラスアンテナ
JP2009164678A (ja) 2007-12-28 2009-07-23 Central Glass Co Ltd 車両用ガラスアンテナ

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