WO2011158602A1 - 車両用ガラスアンテナ - Google Patents

車両用ガラスアンテナ Download PDF

Info

Publication number
WO2011158602A1
WO2011158602A1 PCT/JP2011/061633 JP2011061633W WO2011158602A1 WO 2011158602 A1 WO2011158602 A1 WO 2011158602A1 JP 2011061633 W JP2011061633 W JP 2011061633W WO 2011158602 A1 WO2011158602 A1 WO 2011158602A1
Authority
WO
WIPO (PCT)
Prior art keywords
wire
core
antenna
feeding point
ground
Prior art date
Application number
PCT/JP2011/061633
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
友嗣 片田
山本　政博
正典 貝發
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 CN201180029921.5A priority Critical patent/CN102971907B/zh
Priority to AU2011266380A priority patent/AU2011266380B2/en
Priority to EP11795510.4A priority patent/EP2581983B1/en
Publication of WO2011158602A1 publication Critical patent/WO2011158602A1/ja

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
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/342—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes
    • H01Q5/357—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using a single feed point
    • H01Q5/364—Creating multiple current paths
    • H01Q5/371—Branching current paths
    • 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

Definitions

  • the present invention is an antenna capable of receiving a digital terrestrial radio broadcast wave (DAB: Digital Audio Broadcasting) with a frequency bandwidth in the band 3 of the DAB standard, and particularly a front window glass, a rear window glass, and a side part for an automobile.
  • DAB Digital Audio Broadcasting
  • the present invention relates to a non-grounded antenna provided on a fixed window.
  • DAB Digital Audio Broadcasting
  • DRM Digital Radio Monaural
  • DMB Digital Multimedia Broadcasting
  • ISDB Integrated Services Digital Broadcasting, Integrated Digital Broadcasting Service
  • the frequency band ranges from 174 to 240 MHz and three frequency bands.
  • two separate frequency bands of the L band of 1452 to 1492 MHz are used, and one of the bands is adopted for each country.
  • the resonance frequency is set to be obtained at a certain frequency within a high frequency band such as the L band band of the DAB standard, high reception sensitivity is obtained in a wide band before and after the band centered on the resonance frequency. can get.
  • the resonance frequency is set to be obtained at a certain frequency within a slightly lower frequency band as in the band 3 band, the bandwidth for obtaining high reception sensitivity including the band centered on the resonance frequency is narrowed. There was a tendency to end up.
  • the band 3 having a frequency band of 174 to 240 MHz has a wide bandwidth of 66 MHz, and when there is only one resonance frequency within this band, the bandwidth that can be resonated. Therefore, there is a problem in that good reception sensitivity cannot be obtained at all frequencies in the band. For this reason, antennas that have been devised in various ways to improve them have been developed.
  • a hot-side antenna wire is electromagnetically coupled to a window glass in a horizontal direction and with an upper or lower horizontal side of a metal window frame of a vehicle body to which the window glass is attached.
  • the ground side antenna wire is disposed inward of the window glass from the hot side antenna wire, and one end thereof is disposed close to one end or the center of the hot side antenna wire.
  • Patent Document 1 A window glass antenna for a car phone is described.
  • Japanese Patent Application Laid-Open No. 2000-295023 discloses a resin film, a composite antenna element formed of a strip-shaped thin film conductor formed on the surface of the resin film, and a power feeding portion of the composite antenna element.
  • the composite antenna element is provided with a first antenna element provided so as to be adapted to the first frequency band, and the first frequency band is provided in combination with the first antenna element.
  • the second antenna element is provided so as to be adapted to the second frequency band having a lower frequency level, and the second antenna element is based on the electromagnetic wave in the first frequency band generated on the element.
  • a DAB film antenna is described which is bent at the zero level point portion of the current distribution (Patent Document 2).
  • an antenna for receiving a terrestrial digital TV broadcast wave provided at a corner portion of a window glass on the side of a rear seat of an automobile, near the corner portion of the side window glass.
  • a first vertical wire provided with two feeding points of a positive electrode and a negative electrode, and at least one of the at least two wires extending from the feeding point of the positive electrode;
  • a first element consisting of a first horizontal line branched from the tip or middle of the vertical line and extending in the horizontal direction, and at least two second horizontal lines extending in the horizontal direction from the feeding point of the negative electrode
  • a second element consisting of a second vertical wire extending in the vertical direction from the feed point of the negative electrode, and a coaxial cable core and a sheath conductor at each of the positive and negative feed points Glass antenna for a vehicle, characterized in that the non-grounded type antenna connected is disclosed (Patent Document 4).
  • Patent Document 1 is not a DAB standard terrestrial digital radio broadcast wave antenna, but a window glass antenna for a car phone having a frequency of 810 MHz to 960 MHz, and includes a hot-side antenna line and a ground-side antenna line.
  • the hot wire is electromagnetically coupled to the horizontal side of the metal window frame.
  • this window glass antenna for a car phone is used as an antenna in the frequency band of the band 3 of the DAB standard, there is only one hot side filament effective for widening the band. There is a problem that a high reception gain cannot be obtained over the entire band.
  • Patent Document 2 describes an antenna pattern that can resonate in two bands of two different frequency bands, the band 3 and the L band of the digital radio broadcast wave reception standard, and can receive over both bands.
  • the reception sensitivity is not made high for all frequency bands within one wide frequency bandwidth, and there is no ground side element, so that it is easily affected by noise from the defogger and metal body. was there.
  • the antenna disclosed in Patent Document 3 is not a DAB standard antenna for receiving terrestrial digital radio broadcast waves in a wide band 3 or L band of a wide frequency band, but an FM radio having a frequency of 76 MHz to 90 MHz. It is a window glass antenna for receiving broadcast waves, and is composed of one antenna conductor provided so as to surround the earth conductor. When this antenna is used for receiving terrestrial digital radio broadcast waves in the band 3 of the DAB standard, There was a problem that a high reception gain could not be obtained over the entire band 3.
  • the antenna shown in Patent Document 4 is not a DAB standard antenna for receiving terrestrial digital radio broadcast waves, but an ungrounded window glass antenna for receiving terrestrial digital broadcast waves having a frequency of 470 to 710 MHz.
  • DAB standards When used for digital terrestrial television, there is no problem in reception characteristics, but there are three bands of DAB standards.
  • the element on the core wire side is close to the metal flange. More susceptible to sound, there is a problem that invites deterioration of reception characteristics.
  • the present invention has such problems, that is, when receiving a DAB standard digital radio broadcast, each of the frequency bands of the band 3 of 174 to 240 MHz or the frequency band of the L band of 1452 to 1492 MHz.
  • the object is to obtain a satisfactory reception sensitivity in the entire bandwidth.
  • a glass antenna for a non-grounded vehicle that can receive radio waves over the entire band within the three frequency bands of the DAB standard terrestrial digital radio broadcast wave, Extend the core wire side feed point and ground side feed point, which are arranged in close proximity to each other on the glass surface near the opening of the metal flange of the automobile window, and the metal flange closest to the ground side feed point.
  • a grounding-side element including a striped wire, a core-wire-side first wire extending substantially parallel to the ground-side element wire from the core-wire-side feeding point, and branching from the core-wire-side first wire, or a core-wire-side power feeding
  • a core-wire-side element including a core-wire-side second wire extending in parallel to the core-wire-side first wire directly from the point, and the core-wire-side first wire and the core-wire-side second wire from the core-wire-side feeding point Length to each tip of the strip A glass antenna for a vehicle, characterized in that the streak length of the two separate resonance frequencies resonating with the respective said one frequency bandwidth.
  • 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.
  • FIG. 1 The front enlarged view of the antenna pattern of the comparative example 1.
  • FIG. 8 The frequency characteristic figure in the band 3 of the DAB specification of Example 1 and Comparative Example 1 of the present invention.
  • the embodiment according to the present invention is a non-grounding for receiving a DAB standard terrestrial digital radio broadcast wave composed of a core side element 10 extending from the core side feeding point 6 and a grounding element 20 extending from the ground side feeding point 7.
  • This is a glass antenna of the type.
  • the core wire side feeding point 6 and the grounding side feeding point 7 are arranged adjacent to each other on the glass surface along the opening side of the metal flange of the automobile window, and the distance between each feeding point and the metal flange 3 is almost equal. It arrange
  • the core wire side element 10 extending from the core wire side feed point and the ground side element 20 extending from the ground side feed point are in a direction away from the opening side of the metal flange 3 at the closest position, that is, a substantially central portion of the glass plate. Extend in parallel to each other.
  • the core wire side element 10 and the ground side element 20 are extended from the core wire side feed point 6 and the ground side feed point 7 so as to be parallel to each other, but may be bent so as not to cross each other at an arbitrary place. .
  • the core wire side element 10 provided in the vertical direction of the antenna according to the present invention.
  • the ground side element 20 is disposed on the side close to the corner of the metal flange 3, and the core side element 10 is separated from the corner of the opening of the metal flange 3. It arranged so that it might become.
  • the antenna according to the present invention is provided on the vertical side excluding the position in the vicinity of the corner of the opening of the metal flange 3, that is, in the middle portion of the vertical side, the filaments of the core wire side element 10 and the ground side element 20 are Although it is provided extending in the horizontal direction toward the substantially central portion of the glass plate, the positions of the filaments of the core wire side element 10 and the ground side element 20 may be arranged with their positions being changed up and down.
  • the antenna according to the present invention is arranged at the vertical side position of these metal flanges 3 in the vicinity of the corner of the opening of the metal flange, the core wire side element provided in the horizontal direction of the antenna according to the present invention 10 and the grounding side element 20, the grounding side element 20 is horizontally disposed on the side close to the corner of the metal flange, and the core side element 10 is positioned away from the corner of the metal flange 3. Arranged horizontally.
  • the ground side element 20 is a ground side first wire 21 extending in a direction away from the metal flange 3 located closest to the ground side feed point 7, and the core line side element 10 is connected to the core side feed point 6.
  • the core wire side first wire 11 extending substantially parallel to the wire of the grounding side element 20 and the middle portion of the core wire side first wire 11 or the core wire side first wire 11 from the core wire side feeding point 6.
  • the core wire side second wire 13 extends in parallel to the core wire side first wire 11 through an orthogonal wire wire extending in a direction orthogonal to the core wire side, and the core wire side feed point 6 to the core wire side
  • the lengths to the tips of the first wire 11 and the core-wire-side second wire 13 are the wire lengths determined by the wavelengths of the two separated resonance frequencies that resonate within the frequency bandwidth of the band 3, respectively. .
  • the core wire side first wire 11 and the core wire side second wire 13 of the core wire side element 10 are arranged at positions separated from the metal flange 3 so as not to be affected by the metal flange 3.
  • the ground side element is disposed between the metal flange 3 and the core wire side element 10.
  • the DAB standard frequency band can be suitably received in the band 3 band of 174 to 240 MHz.
  • the present invention is not limited to this, and the L band band of 1452 to 1492 MHz, which is another frequency band of the DAB standard. Can be received without problems.
  • the length of the core wire side first wire and the length of the core wire side second wire means the length from the core wire side feeding point to each end of the core wire side first wire and the core wire side second wire.
  • the resonating filament length is expressed as ⁇ / 4, where ⁇ is the wavelength shortening rate of the glass and ⁇ is the wavelength of the resonance frequency.
  • grounding side element is not limited to a linear shape, and may be a rectangular closed loop filament as shown in FIG.
  • the vicinity of the tip of the second filament of the core wire side element may be connected to the first filament to form a substantially rectangular closed loop filament.
  • an antenna according to the present invention is provided on a front window glass of an automobile> Furthermore, as shown in FIGS. 8 and 9, when the antenna according to the present invention is provided on the front window glass of an automobile, the opening of the metal flange is provided so as not to obstruct the driver's front view. It is preferable to provide in the vicinity of the upper side, and particularly the upper side position excluding the vicinity of the corner of the opening is preferable.
  • the antenna provided in the vicinity of the upper side of the opening has the core-side element 10 and the ground-side element 20 extending from the core-side feeding point 6 and the ground-side feeding point 7, respectively, in the approximate center of the glass plate. It extended to the direction perpendicular
  • the antenna according to the present invention when the antenna according to the present invention is disposed in the vicinity of the corner of the opening of the metal flange, it is closer to the corner on the vertical side of the opening of the metal flange 3.
  • the grounding side element 20 By disposing the grounding side element 20 at the position and disposing the core wire side element 10 on the side away from the side, adverse effects such as noise from the metal body can be blocked by the grounding side element.
  • the antenna according to the present invention in the case where the antenna according to the present invention is provided at the position on the center side of the upper side away from the corner portion of the opening of the metal flange 3, it is separated from the vertical side of the metal flange. Therefore, either the core wire side element 10 or the ground side element 20 may be on the vertical side.
  • the driver's field of view is simply made parallel to each element. Since it can ensure widely than the case where it extends, it becomes more preferable embodiment.
  • each element of the antenna according to the present invention is arranged in the vertical direction, depending on the length of the element, there is a possibility of interfering with the defogger 4. Therefore, each element 20, 30 of the antenna according to the present invention is arranged in the horizontal direction. It is desirable to do.
  • the ground side feeding point and the core wire side feeding point are provided in order from the side close to the corner on the vertical side excluding the corner, and the ground side element 20 and the core side
  • Each filament of the element 10 was provided so as to extend in the horizontal direction away from the vertical side of the flange.
  • ground side feed point 7 and the core wire side feed point 6 are provided in order from the side near the corner, and the ground side element 20 and the core wire side element 10 are provided in the horizontal direction from the respective feed points. This is because the ground-side element 20 can block adverse effects such as noise from the metal body flange 3 by moving away from the horizontal side of the metal flange 3.
  • each of the core wire side element 10 and the ground side element 20 is placed in the horizontal direction away from the vertical side of the metal flange located closest to the core wire side feed point and the ground side feed point, that is, in the central direction of the glass plate.
  • the reason for extending the length is to reduce adverse effects such as noise caused by the metal body.
  • the core side feeding point and the grounding side feeding point are arranged in parallel along all the opening sides except for the corners of the metal flange of the side fitting window. Can be provided.
  • the antenna according to the present invention provided along the upper side or the lower side excluding the corner of the opening of the metal flange 3 has the core side element 10 and the ground side element 20 extending from the core side side feed point 6 and the ground side feed point 7, respectively.
  • the glass plate extends substantially in the vertical direction and substantially parallel to the substantially central portion of the glass plate.
  • the antenna according to the present invention provided along the vertical side excluding the corner of the opening of the metal flange 3 has a core wire side element 10 and a ground side element 20 extending from the core wire side feed point 6 and the ground side feed point 7 respectively.
  • the glass plates extend in a substantially horizontal direction and substantially parallel to each other toward a substantially central portion of the glass plate.
  • the antenna according to the present invention when the antenna according to the present invention is disposed in the vicinity of the corner portion on the upper side or the lower side of the opening portion of the metal flange, the antenna is grounded on the side close to the vertical side of the opening side of the metal flange 3 on the corner side.
  • the antenna according to the present invention when the antenna according to the present invention is disposed in the vicinity of the corner of the vertical side of the opening of the metal flange, the side close to the horizontal side of the corner of the opening of the metal flange 3 (the corner is The ground-side element 20 is disposed on the other side, and the core-wire-side element 10 is disposed on the side away from the horizontal side, whereby adverse effects from the metal body can be blocked by the ground-side element.
  • the line width of the core wire side element 10 and the ground side element is approximately 0.3 to 0.8 mm.
  • the central conductor of the coaxial cable is connected to the core wire side feed point 6 of the antenna for receiving the terrestrial digital radio broadcast wave, and the outer conductor of the coaxial cable is connected to the ground side feed point.
  • Such a glass antenna for digital terrestrial radio broadcasting is located in the vicinity of the upper side excluding the vicinity of the corner of the opening of the metal flange of the front window of the automobile as shown in FIG. 8, or in the automobile as shown in FIG. Position near the corner of the upper side of the opening of the metal flange of the front window, or, as shown in FIG. 10, a horizontal side or vertical side of the corner of the metal flange of the rear window glass, or a side part not shown. If it is provided on any one of the upper side, the lower side, and the side except the corner portion of the metal flange of the killing fixed window, a good reception gain can be obtained by itself.
  • the diversity reception is provided in combination with other antennas for receiving terrestrial digital radio broadcast waves, it is possible to improve the reception gain even for radio waves coming from the side of the vehicle.
  • the directivity can be improved.
  • the ceramic paste layer 2 is dried and then digital
  • the feed points 6 and 7 of the antenna become invisible from the outside of the vehicle, thereby improving the appearance. It is preferable.
  • the antenna pattern according to the present invention as described above is produced by printing a conductive material on a transparent resin film or sheet having an adhesive surface, or by sticking a wire wire, etc. It can also be made to affix on the window glass surface and various panels.
  • the antenna pattern according to the present invention is created by printing with a conductive material on a transparent resin film or sheet having an adhesive surface, or by sticking a wire wire or the like, and is attached to the window glass surface of an automobile. Also good.
  • the antenna according to the first embodiment of the present invention as shown in FIG. 1 is disposed on the glass surface near the vertical side of the opening of the metal flange 3 in the upper margin of the defogger 4 of the rear window glass 1 of the automobile. .
  • the antenna is an ungrounded terrestrial digital radio antenna composed of two elements, a core wire side element 10 and a ground side element 20.
  • the ground-side element 20 has a ground-side first filament 21 having a length of 50 mm facing the horizontal direction away from the vertical side of the opening of the metal flange 3 from the upper side of a square ground-side feeding point 7 having a length and width of 12 mm. Provided.
  • the core wire side element 10 is a first wire on the core wire side having a length of 120 mm from the upper side of a square core wire side feeding point 6 having a length and width of 12 mm toward the horizontal direction away from the vertical side of the opening of the metal flange 3.
  • a strip 11 is provided, and further, a perpendicular branch 12 having a length of 25 mm is extended from a middle portion of the core-wire-side first wire 11 toward the ground-side element 20, and the core-wire-side first is extended from the tip.
  • a 25 mm core wire side second wire 13 was provided in the same direction as the direction in which the wire extends.
  • the branching position of the orthogonal wire 12 from the core wire side first wire is a position 10 mm in length from the end of the core wire side feeding point 6, and the distance between the core wire side feeding point 6 and the ground side feeding point 7. Is 18 mm.
  • Each wire of each of the core wire side element 10 and the ground side element 20 and each feeding point is printed with a conductive ceramic paste at a predetermined position on the indoor surface side of the window glass plate with a width of 0.7 mm for each wire, After drying, it was baked in a heating furnace.
  • the terrestrial digital radio broadcast wave receiving antenna of Example 1 thus prepared is provided on the rear window glass of the automobile, and the center conductor of the coaxial cable extended from a tuner (not shown) is connected to the core wire side feed point 6.
  • the conductor was connected to the ground-side feeding point 7 and received as an antenna in the band 3 terrestrial digital radio broadcasting wave band with a frequency of 174 to 240 MHz.
  • FIG. 12 shows frequency characteristics in three bands obtained by the pattern of Example 1 (see FIG. 1) and the pattern of Comparative Example 1 described later (see FIG. 11).
  • the reception sensitivity of the pattern of the first embodiment of the present invention indicated by the solid line is higher than the reception sensitivity of the pattern of the first comparative example indicated by the dotted line over the entire frequency band of band 3. It can be seen that sensitivity is obtained.
  • Example 2 The antenna pattern of Example 2 shown in FIG. 2 is disposed on the glass surface near the vertical side of the opening of the metal flange 3 in the upper margin of the defogger 4 of the rear window glass 1 of the automobile.
  • the pattern is different in that the second filament of the core wire side element 10 extends directly from the core wire side feed point 6 in the vertical direction,
  • the lengths of the orthogonal wires 12 of the core wire side element 10 and the lengths of the core wire side second wires 13 are different between the first embodiment and the second embodiment.
  • the total length of the wire from the core wire side feeding point 6 to the tip of the core wire side second wire is 60 mm, which is substantially the same length in the first and second embodiments.
  • the length of the core wire side first filament 11, the length of the grounding side element 20, and the interval between the two feeding points are the same as those in the first embodiment.
  • the antenna of Example 2 was printed with a conductive ceramic paste at a predetermined position on the indoor surface side of the window glass plate in the same manner as in Example 1, dried, and then baked in a heating furnace.
  • the terrestrial digital radio broadcast wave receiving antenna of Example 2 created in this way is provided on the rear window glass of the automobile, and the central conductor of the coaxial cable extended from the tuner (not shown) is connected to the core wire side feeding point 6.
  • the conductor is connected to the ground-side feeding point 7 and received as an antenna in the band 3 terrestrial digital radio broadcast wave band of the frequency 174 to 240 MHz, the satisfactory reception sensitivity is obtained as in the first embodiment, and it is sufficient. It was at a practical level.
  • Example 3 In Example 3 shown in FIG. 3, the core wire side feeding point 6 and the grounding side feeding point 7 of the antenna according to the present invention are provided in the vicinity of the upper side of the opening portion of the metal flange of the front window glass of the automobile.
  • the first embodiment is different from the first and second embodiments in which the core wire side element 10 and the grounding side element 20 are extended in the horizontal direction from the feeding points 6 and 7 in that the core wire side element 10 and the grounding side element 20 are extended in the vertical direction. ing.
  • the core wire side second filament of the core wire side element 10 extending vertically downward from the core wire side feed point is directly open from the core wire side feed point 6 to the metal flange 3. It is different in that it extends to the left away from the vertical side of the part, extends from its tip in the direction parallel to the first core wire and extends in the direction of the first core wire.
  • ground-side element 20 extending in the direction away from the metal flange from the ground-side feeding point 7 is the same.
  • the antenna was printed with a conductive ceramic paste at a predetermined position on the indoor side of the window glass plate in the same manner as in Example 2, dried, and baked in a heating furnace.
  • the terrestrial digital radio broadcast wave receiving antenna of the third embodiment created in this way is provided on the front window glass of the automobile, and the central conductor of the coaxial cable extended from a tuner (not shown) is connected to the feeding point 6 on the core wire side.
  • a tuner not shown
  • the outer conductor is connected to the ground-side feeding point 7 and received as an antenna in the band 3 terrestrial digital radio broadcasting wave band of 174 to 240 MHz, satisfactory reception sensitivity is obtained as in the second embodiment. And was at a practical level.
  • Example 4 The antenna pattern of Example 4 shown in FIG. 4 is arranged on the glass surface near the vertical side of the opening of the metal flange 3 in the upper margin of the defogger 4 of the rear window glass 1 of the automobile.
  • an orthogonal wire 12 is provided in which the second wire 13 of the core wire side element 10 branches vertically downward from the middle portion of the core wire first wire 11, and its tip.
  • the core-wire-side second filament 13 is extended in parallel to the core-wire-side first filament 11, and the other points are the same as those of the first embodiment.
  • the antenna of Example 4 was printed with a conductive ceramic paste at a predetermined position on the indoor surface side of the window glass plate in the same manner as in Example 1, dried, and baked in a heating furnace.
  • the terrestrial digital radio broadcast wave receiving antenna of Example 4 created in this way is provided on the rear window glass of the automobile, and the central conductor of the coaxial cable extended from the tuner (not shown) is connected to the core wire side feed point 6.
  • the conductor is connected to the ground-side feeding point 7 and received as an antenna in the band 3 terrestrial digital radio broadcast wave band of the frequency 174 to 240 MHz, the satisfactory reception sensitivity is obtained as in the first embodiment, and it is sufficient. It was at a practical level.
  • Example 5 The antenna pattern of Example 5 shown in FIG. 5 is disposed on the glass surface of the vertical side of the opening of the metal flange 3 in the upper margin of the defogger 4 of the rear window glass 1 of the automobile. Unlike the second embodiment, the core-side element 10 is the same as the second embodiment in that the ground side element 20 has a closed loop shape compared to the antenna pattern of the second embodiment shown in FIG.
  • the closed loop-shaped grounding side element 20 has a rectangular shape in which the tips of two horizontal filaments extending in the horizontal direction while maintaining the width of the grounding side feeding point 7 are connected.
  • the antenna of Example 5 was printed with a conductive ceramic paste at a predetermined position on the indoor surface side of the window glass plate in the same manner as in Example 2, dried, and then baked in a heating furnace.
  • the terrestrial digital radio broadcast wave receiving antenna of Example 5 created as described above is provided on the rear window glass of the automobile, and the central conductor of the coaxial cable extended from a tuner (not shown) is connected to the core-side feeding point 6.
  • a tuner not shown
  • the conductor is connected to the ground-side feeding point 7 and received as an antenna in the band 3 terrestrial digital radio broadcasting wave band with a frequency of 174 to 240 MHz, satisfactory reception sensitivity is obtained as in the second embodiment, and sufficient. It was at a practical level.
  • Example 6 The antenna pattern of Example 6 shown in FIG. 6 is disposed on the glass surface near the vertical side of the opening of the metal flange 3 in the upper margin of the defogger 4 of the rear window glass 1 of the automobile. Compared to the antenna pattern of Example 2 shown in FIG. 2, the tip of the second wire extending from the tip of the orthogonal wire branched from the middle of the first wire of the core wire side element 10 is connected to the first wire. And the point which formed the rectangular-shaped part differs.
  • the length of the core wire side first filament 11 of the core wire side element, the length of the grounding side element 20, and the interval between the two feeding points are the same as in the second embodiment.
  • the antenna of Example 6 was printed with a conductive ceramic paste at a predetermined position on the indoor surface side of the window glass plate in the same manner as in Example 1, dried, and baked in a heating furnace.
  • the terrestrial digital radio broadcast wave receiving antenna of Example 6 created in this way is provided on the rear window glass of the automobile, and the central conductor of the coaxial cable extended from the tuner (not shown) is connected to the core wire side feeding point 6.
  • the conductor is connected to the ground-side feeding point 7 and received as an antenna in the band 3 terrestrial digital radio broadcasting wave band with a frequency of 174 to 240 MHz, satisfactory reception sensitivity is obtained as in the second embodiment, and sufficient. It was at a practical level.
  • Example 7 The antenna pattern of Example 2 shown in FIG. 7 is disposed on the glass surface near the vertical side of the opening of the metal flange 3 in the upper margin of the defogger 4 of the rear window glass 1 of the automobile.
  • the arrangement positions of the orthogonal wire 12 and the core wire side second wire 13 of the core wire side element 10 are different.
  • the difference is that the core-wire-side second filament is extended in both the left and right directions from the tip of the orthogonal filament 12 branched so as to be orthogonal to the middle portion of the core-wire-side first filament.
  • the core wire side first wire 11, the grounding side element 20, and the like are the same as those in the second embodiment.
  • the antenna of Example 7 was printed with a conductive ceramic paste at a predetermined position on the indoor side of the window glass plate, dried, and baked in a heating furnace.
  • the terrestrial digital radio broadcast wave receiving antenna of Example 7 thus prepared is provided on the rear window glass of the automobile, and the center conductor of the coaxial cable extended from the tuner (not shown) is connected to the core-side feeding point 6.
  • the conductor is connected to the ground-side feeding point 7 and received as an antenna in the band 3 terrestrial digital radio broadcasting wave band with a frequency of 174 to 240 MHz, satisfactory reception sensitivity is obtained as in the second embodiment, and sufficient. It was at a practical level.
  • Example 8 shown in FIG. 13 is provided with a core-side feeding point 6 and a ground-side feeding point 7 of the antenna according to the present invention in the vicinity of the upper side of the opening of the metal flange of the front window glass of the automobile, and each feeding point.
  • the core wire side element 10 and the ground side element 20 are extended vertically from each other, and each element is bent at a right angle at an arbitrary position. This is different from Example 7 in which the straight line is extended in the direction. However, the length of each filament is the same as Example 7.
  • Each wire and each feeding point of the core wire side element 10 and the grounding side element 20 are printed with a conductive ceramic paste at a predetermined position on the indoor surface side of the window glass plate with a width of 0.7 mm and dried. After that, it was baked by a heating furnace.
  • the terrestrial digital radio broadcast wave receiving antenna of Example 8 created in this way is provided on the front window glass of the automobile, and the center conductor of the coaxial cable extended from a tuner (not shown) is connected to the core wire side feeding point 6.
  • the outer conductor was connected to the ground-side feeding point 7 and received as an antenna in the band 3 terrestrial digital radio broadcast wave band with a frequency of 174 to 240 MHz.
  • FIG. 15 shows frequency characteristics in three bands obtained by the pattern of Example 8 (see FIG. 13) and the pattern of Comparative Example 1 (see FIG. 11) described later.
  • the reception sensitivity of the pattern of the eighth embodiment of the present invention indicated by the solid line is higher than the reception sensitivity of the pattern of the comparative example 1 indicated by the dotted line over the entire frequency band of the band 3. It can be seen that sensitivity is obtained.
  • Comparative Example 1 shown in FIG. 11 has only the core-wire-side first filament (see FIG. 1) having a length that resonates at an intermediate frequency of three bands shown in Example 1 as core-wire-side element 10 ′.
  • the grounding side element 20 has the same pattern as that of the first embodiment.
  • the antenna of Comparative Example 1 was printed with a conductive ceramic paste at a predetermined position on the indoor surface side of the window glass plate in the same manner as in Example 1, dried, and baked in a heating furnace.
  • the terrestrial digital radio broadcast wave receiving antenna of Comparative Example 1 created in this way is provided on the rear window glass of the automobile, and the central conductor of the coaxial cable extended from the tuner (not shown) is connected to the feeding point 6 on the core wire side to the outer sheath.
  • the conductor is connected to the ground-side feeding point 7 and received as an antenna of the band 3 terrestrial digital radio broadcasting wave band of the frequency 174 to 240 MHz.
  • the thin dotted line in FIG. It was clear that the characteristics of Example 1 indicated by the thick dotted line are excellent.
  • the metal flange of the automobile window Grounding side including a wire extending in the direction away from the core-side feeding point and the grounding-side feeding point arranged in close proximity to each other on the glass surface in the vicinity of the opening, and the metal flange located closest to the grounding-side feeding point
  • a core wire side element including a core wire side second wire extending in parallel with the wire, and a length from the core wire side feeding point to each end of the core wire side first wire and the core wire side second wire
  • Each of the one frequency band And umbilical lengths of two separate resonance frequency resonates in width, a glass antenna for a vehicle.
  • the length of the resonating filament is ⁇ / 4, where ⁇ is the wavelength shortening rate of the glass and ⁇ is the wavelength of the resonance frequency, and the vehicle according to any one of (1) and (2) Glass antenna.
  • the grounding side feeding point is provided near the corner, and the core side feeding point is provided near the horizontal side away from the corner.
  • the ground-side feeding point is provided near the corner and the core-side feeding point 6 is provided in the vicinity of the vertical side away from the corner.
  • the antenna pattern was created by printing with a conductive material on a transparent resin film or sheet having an adhesive surface, or by sticking a wire wire, etc., and pasted it on the window glass of an automobile.
  • the frequency band is as low as 174 to 240 MHz, the bandwidth is as wide as 66 MHz.
  • two or more resonance frequencies at which the reception characteristic peaks within the same bandwidth are provided at intervals. Therefore, compared to the case where there is only one resonance frequency, there is no band with low reception sensitivity at frequencies within the same bandwidth that is far from the resonance frequency, and good reception characteristics can be obtained in all bands. It was.

Landscapes

  • Details Of Aerials (AREA)
  • Support Of Aerials (AREA)
PCT/JP2011/061633 2010-06-16 2011-05-20 車両用ガラスアンテナ WO2011158602A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201180029921.5A CN102971907B (zh) 2010-06-16 2011-05-20 车辆用玻璃天线
AU2011266380A AU2011266380B2 (en) 2010-06-16 2011-05-20 Window-glass antenna for vehicle
EP11795510.4A EP2581983B1 (en) 2010-06-16 2011-05-20 Window-glass antenna for vehicle

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2010-136841 2010-06-16
JP2010136841 2010-06-16
JP2011-046057 2011-03-03
JP2011046057A JP5720308B2 (ja) 2010-06-16 2011-03-03 車両用ガラスアンテナ

Publications (1)

Publication Number Publication Date
WO2011158602A1 true WO2011158602A1 (ja) 2011-12-22

Family

ID=45348011

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2011/061633 WO2011158602A1 (ja) 2010-06-16 2011-05-20 車両用ガラスアンテナ

Country Status (5)

Country Link
EP (1) EP2581983B1 (zh)
JP (1) JP5720308B2 (zh)
CN (1) CN102971907B (zh)
AU (1) AU2011266380B2 (zh)
WO (1) WO2011158602A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2712020A1 (en) * 2012-09-20 2014-03-26 Asahi Glass Company, Limited Glass antenna and window glass
WO2016190064A1 (ja) * 2015-05-22 2016-12-01 日本板硝子株式会社 車両用の窓ガラス及びｄａｂ用ガラスアンテナ

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101962499B1 (ko) 2011-10-28 2019-03-26 코닝 인코포레이티드 적외선 반사도를 갖는 유리 제품 및 이의 제조방법
JP6064521B2 (ja) * 2012-10-30 2017-01-25 ミツミ電機株式会社 フィルムアンテナ装置
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
EP2940793B1 (en) 2012-12-27 2017-04-19 Asahi Glass Company, Limited Glass antenna-equipped vehicle front glass
JP6094334B2 (ja) * 2013-04-02 2017-03-15 セントラル硝子株式会社 車両用ガラスアンテナ
JP6123457B2 (ja) * 2013-04-25 2017-05-10 セントラル硝子株式会社 自動車用ガラスアンテナ
CN105409057A (zh) * 2013-07-31 2016-03-16 旭硝子株式会社 天线装置
EP3032642A4 (en) * 2013-08-05 2017-03-08 Asahi Glass Company, Limited Antenna device
JP6363346B2 (ja) * 2014-01-17 2018-07-25 日本板硝子株式会社 車両用ガラスアンテナ
JP6503842B2 (ja) * 2015-03-31 2019-04-24 Ａｇｃ株式会社 車両用アンテナ及び車両用アンテナを備えた窓板
CN107531562B (zh) 2015-04-30 2021-05-28 康宁股份有限公司 具有离散的金属银层的导电制品及其制造方法
JP2017005354A (ja) * 2015-06-05 2017-01-05 旭硝子株式会社 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
JP2017060069A (ja) * 2015-09-18 2017-03-23 セントラル硝子株式会社 地上波デジタルｔｖ放送波受信用のガラスアンテナ
JP2017118400A (ja) 2015-12-25 2017-06-29 セントラル硝子株式会社 ガラスアンテナ及び窓ガラス
JP6319407B2 (ja) * 2016-11-29 2018-05-09 セントラル硝子株式会社 車両用ガラスアンテナ
JP6812824B2 (ja) 2017-02-14 2021-01-13 Ａｇｃ株式会社 車両用窓ガラス
US10804590B2 (en) * 2017-04-12 2020-10-13 Central Glass Company, Limited Antenna and window glass
EP3771030A4 (en) * 2018-03-22 2021-12-08 Central Glass Company, Limited GLASS WINDOWS FOR VEHICLE
JP7206885B2 (ja) * 2018-12-18 2023-01-18 Ａｇｃ株式会社 アンテナ装置、アンテナ装置付き窓ガラス及びアンテナシステム
JP7205259B2 (ja) * 2019-01-31 2023-01-17 Ａｇｃ株式会社 車両用ガラスアンテナ、車両用窓ガラス及び車両用アンテナシステム

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0746016A (ja) 1993-07-30 1995-02-14 Nippon Sheet Glass Co Ltd 自動車電話用窓ガラスアンテナ
JPH1127027A (ja) * 1997-06-30 1999-01-29 Asahi Glass Co Ltd 自動車用高周波ガラスアンテナ
JP2000295023A (ja) 1999-04-09 2000-10-20 Harada Ind Co Ltd Ｄａｂフィルムアンテナ
JP2001127519A (ja) 1999-10-28 2001-05-11 Asahi Glass Co Ltd 自動車用サイド窓ガラスアンテナ
JP2005229140A (ja) * 2003-03-19 2005-08-25 Central Glass Co Ltd 車両用アンテナ
JP2007067884A (ja) * 2005-08-31 2007-03-15 Yokowo Co Ltd アンテナ
JP2009049706A (ja) 2007-08-20 2009-03-05 Central Glass Co Ltd 車両用ガラスアンテナ
JP2010093781A (ja) * 2008-09-12 2010-04-22 Central Glass Co Ltd ガラスアンテナ

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2795591B2 (ja) * 1993-01-27 1998-09-10 セントラル硝子株式会社 車両用のガラスアンテナ
TW423180B (en) * 1997-01-31 2001-02-21 Terajima Fumitaka Glass antenna device for an automobile
JP3565406B2 (ja) * 1998-11-16 2004-09-15 セントラル硝子株式会社 車両用ガラスアンテナ
JP2002064317A (ja) * 2000-08-22 2002-02-28 Nippon Sheet Glass Co Ltd 車両用ガラスアンテナおよび車両用ガラスアンテナ装置
JP2004112291A (ja) * 2002-09-18 2004-04-08 Asahi Glass Co Ltd 自動車用のアース端子装置
DE102005009443A1 (de) * 2005-03-02 2006-09-07 Hirschmann Electronics Gmbh Folienantenne für ein Fahrzeug
DE102008011131A1 (de) * 2008-02-26 2009-09-10 Bayerische Motoren Werke Aktiengesellschaft Antennenanordnung für ein Kraftfahrzeug
JP2010154504A (ja) * 2008-11-20 2010-07-08 Asahi Glass Co Ltd 車両用ガラスアンテナ及び車両用窓ガラス

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0746016A (ja) 1993-07-30 1995-02-14 Nippon Sheet Glass Co Ltd 自動車電話用窓ガラスアンテナ
JPH1127027A (ja) * 1997-06-30 1999-01-29 Asahi Glass Co Ltd 自動車用高周波ガラスアンテナ
JP2000295023A (ja) 1999-04-09 2000-10-20 Harada Ind Co Ltd Ｄａｂフィルムアンテナ
JP2001127519A (ja) 1999-10-28 2001-05-11 Asahi Glass Co Ltd 自動車用サイド窓ガラスアンテナ
JP2005229140A (ja) * 2003-03-19 2005-08-25 Central Glass Co Ltd 車両用アンテナ
JP2007067884A (ja) * 2005-08-31 2007-03-15 Yokowo Co Ltd アンテナ
JP2009049706A (ja) 2007-08-20 2009-03-05 Central Glass Co Ltd 車両用ガラスアンテナ
JP2010093781A (ja) * 2008-09-12 2010-04-22 Central Glass Co Ltd ガラスアンテナ

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2712020A1 (en) * 2012-09-20 2014-03-26 Asahi Glass Company, Limited Glass antenna and window glass
WO2016190064A1 (ja) * 2015-05-22 2016-12-01 日本板硝子株式会社 車両用の窓ガラス及びｄａｂ用ガラスアンテナ
JPWO2016190064A1 (ja) * 2015-05-22 2018-05-17 日本板硝子株式会社 車両用の窓ガラス及びｄａｂ用ガラスアンテナ

Also Published As

Publication number Publication date
EP2581983A1 (en) 2013-04-17
CN102971907B (zh) 2015-04-22
AU2011266380A1 (en) 2013-01-24
CN102971907A (zh) 2013-03-13
JP2012023707A (ja) 2012-02-02
JP5720308B2 (ja) 2015-05-20
AU2011266380B2 (en) 2014-03-20
EP2581983B1 (en) 2018-10-31
EP2581983A4 (en) 2014-08-06

Similar Documents

Publication Publication Date Title
JP5720308B2 (ja) 車両用ガラスアンテナ
TWI446621B (zh) Glass antenna
JP4941171B2 (ja) 車両用ガラスアンテナ
WO2013094470A1 (ja) 車両用ガラスアンテナ
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
JP2011135405A (ja) 自動車用のガラスアンテナ
WO2012011354A1 (ja) 車両用アンテナ
WO2012020605A1 (ja) 車両用アンテナ
WO2014104365A1 (ja) ガラスアンテナ付き車両用フロントガラス
JP5003627B2 (ja) 車両用ガラスアンテナ及び車両用窓ガラス
JP5338377B2 (ja) ガラスアンテナ
JP6251476B2 (ja) 車両用ガラスアンテナ
JP2009164678A (ja) 車両用ガラスアンテナ
JP5387317B2 (ja) 車両用ガラスアンテナ
JP2011193381A (ja) 平面アンテナ
JP5428790B2 (ja) 車両用ガラスアンテナ
JP5560607B2 (ja) ガラスアンテナ
JP5316230B2 (ja) ガラスアンテナ
JP5633295B2 (ja) 車両用アンテナ
JP5332895B2 (ja) 車両用ガラスアンテナ
JP2005229140A (ja) 車両用アンテナ
JP2013009252A (ja) 車両用ガラスアンテナ
JP2016072910A (ja) アンテナ及び窓ガラス
JP5499810B2 (ja) 車両用ガラスアンテナ及び車両用窓ガラス
JP2011024026A (ja) 車両用ガラスアンテナ

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 201180029921.5

Country of ref document: CN

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

Ref document number: 11795510

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 2011795510

Country of ref document: EP

ENP Entry into the national phase

Ref document number: 2011266380

Country of ref document: AU

Date of ref document: 20110520

Kind code of ref document: A