EP3101734B1 - Glasantenne - Google Patents

Glasantenne Download PDF

Info

Publication number
EP3101734B1
EP3101734B1 EP14880841.3A EP14880841A EP3101734B1 EP 3101734 B1 EP3101734 B1 EP 3101734B1 EP 14880841 A EP14880841 A EP 14880841A EP 3101734 B1 EP3101734 B1 EP 3101734B1
Authority
EP
European Patent Office
Prior art keywords
antenna
glass
overlap portion
glass antenna
power feeding
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
EP14880841.3A
Other languages
English (en)
French (fr)
Other versions
EP3101734A4 (de
EP3101734A1 (de
Inventor
Masanori Kaihatsu
Yuji Katada
Hisashi Kobayashi
Akifumi KITAMURA
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Central Glass Co Ltd
Original Assignee
Central Glass Co Ltd
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 Central Glass Co Ltd filed Critical Central Glass Co Ltd
Publication of EP3101734A1 publication Critical patent/EP3101734A1/de
Publication of EP3101734A4 publication Critical patent/EP3101734A4/de
Application granted granted Critical
Publication of EP3101734B1 publication Critical patent/EP3101734B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H01Q1/1278—Supports; Mounting means for mounting on windscreens in association with heating wires or layers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/30—Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
    • 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
    • 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
    • H01Q5/378—Combination of fed elements with parasitic elements
    • 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

  • This invention relates to a glass antenna arranged on a surface of a glass sheet, and more particularly, to an antenna configured to receive a plurality of frequency bands.
  • radio and television broadcasting frequencies and a frequency used for a remote keyless entry (RKE) system differ among countries and regions, and hence it is necessary to develop an antenna having elements that differ in length for each delivery destination.
  • RKE remote keyless entry
  • a large number of work man-hours are required, and hence an antenna configured to support a plurality of bands is desired.
  • the frequency used for the remote keyless entry system is 315 MHz in Japan and the United States of America, and is 433.92 MHz in Europe. Therefore, when a satisfactory sensitivity cannot be obtained in a plurality of bands, it is necessary to adjust the lengths of the elements for each delivery destination.
  • JP H06-291530 A As an antenna for obtaining a satisfactory sensitivity with such a plurality of frequencies, in JP H06-291530 A , there is disclosed an antenna of a typical two-frequency switching type.
  • the antenna disclosed in JP H06-291530 A includes two elements having lengths suitable for the respective frequencies, and has the two elements connected to each other in a bifurcated shape or a V shape.
  • an antenna pattern can be formed to have a small size.
  • an increase in antenna pattern of an antenna configured to receive a relatively low frequency (315 MHz or 433.92 MHz) with a high sensitivity e.g., an antenna for a remote keyless entry system.
  • the antenna pattern is generally arranged in a part of a defogger on a rear window, in which a heating wire is not arranged, or a part that does not block the view of a human. Therefore, it is difficult to arrange a noticeably large pattern on a glass sheet.
  • JP H02811 U discloses an automotive glass antenna with unpaid seedling element.
  • EP 2190075 A1 discloses a glass antenna and window glass for vehicle.
  • JP 2007110390 A discloses a high-frequency glass antenna for automobile.
  • this invention has an object to provide a glass antenna capable of obtaining satisfactory reception performance in two frequency bands even when being arranged in a narrow place on a window glass for an automobile.
  • the second element includes an element configured to form an antenna different from an antenna including the first element.
  • the glass antenna is an antenna for reception of a signal on a UHF band
  • the antenna including the second element is an antenna for reception of an AM radio broadcast on a medium wave band.
  • the first element is bent at a midpoint.
  • a part between a bent portion of the first element and the power feeding point is formed of a plurality of wires.
  • the first frequency band has a center frequency of approximately 315 MHz.
  • the second frequency band has a center frequency of approximately 433.92 MHz.
  • the overlap portion has a spacing of equal to or smaller than 10 millimeters between the first element and the second element.
  • the first element is arranged in a position spaced apart from an edge of a body flange of an automobile by equal to or larger than 5 millimeters and equal to or smaller than 10 millimeters when the glass antenna is mounted on the automobile so that the body flange and the first element are capacitively coupled to each other.
  • FIG. 1 to FIG. 5 are diagrams of a glass antenna according to each embodiment of this invention when viewed from the inside of a vehicle.
  • a glass antenna 100 is provided to a rear glass of an automobile, and includes a power feeding point 2 and a first element 1 extending from the power feeding point 2.
  • a second element 52F is arranged in proximity to a part of the first element 1. Therefore, the first element 1 can be classified into an overlap portion 1A arranged in proximity to the second element 52F and a non-overlap portion 1B that is not arranged in proximity to the second element 52F.
  • the power feeding point 2 is connected to a reception amplifier 6 through a connecting line (for example, low voltage cable for automobile) 5, and the reception amplifier 6 is connected to a receiver by a high-frequency cable (for example, coaxial cable). Further, the reception amplifier 6 is connected to the ground (vehicle body).
  • a connecting line for example, low voltage cable for automobile
  • a high-frequency cable for example, coaxial cable
  • the second element 52F may be a conductor line that does not form another antenna, or as illustrated in FIG. 2 , the second element 52F may be a part of another antenna.
  • the first element 1 may include a bent portion 3, and the non-overlap portion 1B may be bent at the bent portion 3.
  • the second element 52F may be bent along the first element 1 so as to correspond to the bending of the first element 1.
  • the bent portion 3 and the power feeding point 2 are connected to each other with a plurality of conductive lines.
  • the first element 1 may be arranged in proximity to a body flange 82 of the vehicle body (for example, in parallel with the body flange 82 with a spacing of 5 millimeters), and the antenna 100 and the body flange 82 (that is, ground) may be capacitively coupled to each other.
  • the antenna according to the embodiment of this invention is formed by printing a pattern of the antenna with conductive ceramic paste in a predetermined position on an indoor surface side of a window glass sheet with each wire having a width of approximately 0.7 millimeter, drying the pattern, and then baking the pattern in a heating furnace. Further, the antenna may be formed of a conductive pattern formed on a resin film that transmits light, and may be bonded to a glass sheet.
  • the embodiment of this invention is described above by taking a mode of providing the antenna on a rear glass 81 of the automobile, but the antenna according to the embodiment of this invention may be provided on another part (for example, windshield or side glass).
  • a length of each of elements of the antenna according to the embodiment of this invention is adjusted to a length suitable to receive a signal on a UHF band to be used for a remote keyless entry system as described later in each embodiment.
  • the antenna according to the embodiment may be formed as an antenna suitable to receive a signal on another frequency band.
  • the antenna according to this embodiment includes the power feeding point 2 and the first element 1 extending from the power feeding point 2.
  • the first element 1 includes: the overlap portion 1A arranged along the second element 52F that is not connected to the power feeding point 2 so that the second element 52F is arranged with a predetermined spacing; and the non-overlap portion 1B prevented from being arranged along the second element 52F.
  • the length of each of the overlap portion 1A and the non-overlap portion 1B is adjusted so as to enable a first frequency band to be received in a preferred manner by one of the overlap portion 1A and the non-overlap portion 1B and to enable a second frequency band to be received in a preferred manner by another one of the overlap portion 1A and the non-overlap portion 1B. Therefore, it is possible to receive two frequency bands with a high sensitivity, and to form an antenna that can be arranged in a narrow place.
  • the antenna according to this embodiment has such a simple configuration as to include the power feeding point 2 and the first element 1 in a main body portion, but has the second element 52F arranged along a part of the first element 1, to thereby be enabled to receive two frequency bands with a high sensitivity through the appropriate adjustment of the length of the overlap portion 1A and the length of the non-overlap portion 1B.
  • the second element 52F may be an element configured to form a part or all of an antenna different from the antenna including the first element 1. Therefore, even in a place where a different antenna is arranged, through use of an element of the different antenna, the antenna according to this embodiment can obtain satisfactory reception performance in two frequencies. Further, the antenna according to this embodiment may be arranged in proximity to the different antenna, and can therefore be arranged even in a narrow place.
  • the first element 1 is bent at a midpoint (bent portion 3), and hence the antenna according to this embodiment can be mounted on a glass on which a different antenna is mounted with only a narrow place remaining.
  • the antenna according to this embodiment is arranged in a narrow place, even when an overlap portion can be adjusted to have an appropriate length, if an element is formed to extend straight, the antenna may be caused to lie off the glass sheet, or may interfere with a corner portion of the body flange, and hence the non-overlap portion 1B may fail to be adjusted to have an appropriate length. Therefore, by bending the first element 1, it is possible to increase the length of the non-overlap portion 1B.
  • the power feeding point 2 is sometimes arranged in a predetermined position close to a side of a window glass for an automobile. Therefore, as illustrated in FIG. 4 , the second element 52F is arranged so as to be bent along the first element 1, and the lengths of bent parts of the first element 1 and the second element 52F are adjusted, to thereby be able to adjust the position of the power feeding point 2 on the glass sheet.
  • bent portion 3 of the first element 1 and the power feeding point 2 are connected to each other through a plurality of wires, to thereby be able to improve the sensitivity.
  • a spacing between the first element 1 and the second element 52F in the overlap portion 1A is set to equal to or smaller than 10 millimeters, and hence the first element 1 and the second element 52F are connected to each other strongly, which facilitates the obtaining of a satisfactory sensitivity in two frequency bands.
  • the first element 1 is arranged in a position spaced apart from the body flange 82 by from 5 millimeters to 10 millimeters, to thereby be able to obtain a high sensitivity in a desired frequency band.
  • FIG. 1 is a front view of the glass antenna to be provided to the rear glass of the automobile, for illustrating an antenna pattern according to an example 1 of this invention.
  • the glass antenna 100 according to the example 1 includes the power feeding point 2 and the first element 1 extending from the power feeding point 2 in a substantially horizontal direction (rightward).
  • the second element 52F is arranged in proximity to a part of the first element 1 (for example, in parallel with the part of the first element 1 with a spacing of 10 millimeters). Therefore, the first element 1 can be classified into the overlap portion 1A arranged in proximity to the second element 52F and the non-overlap portion 1B that is not arranged in proximity to the second element 52F.
  • the second element 52F according to the example 1 is a conductor line that does not form another antenna and is not connected to the ground.
  • one first element 1 is formed of the overlap portion 1A and the non-overlap portion 1B. Therefore, it is possible to form an antenna capable of receiving two frequency bands with a high sensitivity even in a narrow place.
  • FIG. 2 is a front view of the glass antenna to be provided to the rear glass of the automobile, for illustrating an antenna pattern according to an example 2 of this invention.
  • the glass antenna according to the example 2 is different from the glass antenna according to the example 1 in that the second element 52F forms a part of another antenna (second antenna 50).
  • the second antenna 50 includes a plurality of horizontal wires 52, a plurality of vertical wires 53 connecting the horizontal wires 52 to one another, and a second power feeding point 54 provided at an end portion of the horizontal wire 52.
  • One of the horizontal wires 52 (for example, uppermost horizontal wire 52F) is arranged in proximity to the first element 1.
  • the second antenna 50 has the respective wires arranged so as to have an area suitable to receive an AM radio broadcast band (from 526.5 kHz to 1,606.5 kHz).
  • FIG. 3 is a front view of the glass antenna to be provided to the rear glass of the automobile, for illustrating an antenna pattern according to an example 3 of this invention.
  • the glass antenna according to the example 3 is different from the glass antenna according to the example 2 in that the first element 1 is bent.
  • the first element 1 according to the example 3 extends from the power feeding point 2 in an upward direction, is bent toward a horizontal direction (rightward) at the bent portion 3 in the non-overlap portion 1B, and extends in proximity to the second element 52F.
  • each of elements of the example 3 is adjusted to a length suitable to receive a band for the remote keyless entry system so that the first element 1 has a length of 605 millimeters, the overlap portion 1A has a length of 370 millimeters, and the non-overlap portion 1B has a length of 235 (160+75) millimeters.
  • the length of the overlap portion 1A is approximately ⁇ 1 /2 .
  • the length of the non-overlap portion 1B is approximately ⁇ 2 /2.
  • the overlap portion 1A is adjusted to a low frequency band and the non-overlap portion 1B is adjusted to a high frequency band, but the overlap portion 1A may be adjusted to a high frequency band and the non-overlap portion 1B may be adjusted to a low frequency band.
  • the antenna according to this example can be mounted on a glass having another antenna mounted with only a narrow place remaining, and it is possible to obtain satisfactory reception performance in two frequencies.
  • FIG. 4 is a front view of the glass antenna to be provided to the rear glass of the automobile, for illustrating an antenna pattern according to an example 4 of this invention.
  • the glass antenna according to the example 4 is different from the glass antenna according to the example 3 in that the second element 52F is bent.
  • the second element 52F according to the example 4 extends along the first element in a horizontal direction (substantially horizontally), is further bent along the bent first element 1, and extends in a vertical direction (substantially vertically).
  • the second element 52F is arranged so as to be bent along the first element 1. Therefore, through adjustment of the lengths of the bent parts of the first element 1 and the second element 52F, it is possible to adjust the position of the power feeding point 2 on the glass sheet.
  • FIG. 5 is a front view of the glass antenna to be provided to the rear glass 81 of the automobile, for illustrating an antenna pattern according to an example 5 of this invention.
  • the glass antenna according to the example 5 is different from the glass antenna according to the example 3 in that an antenna having a configuration similar to the configurations of the glass antennas according to the examples described above is implemented as a fifth antenna 100, and further includes a first antenna 10, the second antenna 50, a third antenna 60, and a fourth antenna 70.
  • the bent portion 3 and the power feeding point 2 are connected to each other with a plurality of conductive lines.
  • the fifth antenna 100 includes the power feeding point 2 and the first element 1 extending from the power feeding point 2 in a substantially horizontal direction (rightward).
  • the second element 52F is arranged in proximity to a part of the first element 1 (for example, in parallel with the part of the first element 1 with a spacing of 10 millimeters). Therefore, the first element 1 can be classified into the overlap portion 1A arranged in proximity to the second element 52F and the non-overlap portion 1B that is not arranged in proximity to the second element 52F.
  • the first element 1 is arranged so that two parallel conductor lines extend from the power feeding point 2 in the upward direction, are bent toward the horizontal direction (rightward) at the bent portion 3 in the non-overlap portion 1B, and extend in proximity to the second element 52F.
  • the bent portion 3 and the power feeding point 2 are connected to each other with two conductive lines.
  • the number of conductors between the bent portion 3 and the power feeding point 2 may be equal to or larger than three.
  • the second element 52F forms a part of the second antenna 50.
  • Components of the fifth antenna 100 of the example 5 other than the above-mentioned components are the same as those of the glass antenna of the example 3, and therefore descriptions thereof are omitted.
  • the first antenna 10 includes the first power feeding point 15, a horizontal first element 11, a horizontal second element, a vertical element 31, and auxiliary elements 12 and 13.
  • the horizontal first element 11 is connected to the first power feeding point 15, and extends in a substantially horizontal direction (leftward direction in FIG. 5 ).
  • the horizontal second element is connected to the first power feeding point 15, and extends along and in substantially parallel with the horizontal first element 11 in the same direction as an extending direction of the horizontal first element 11 (rightward direction in FIG. 5 ).
  • the horizontal second element is formed of a main body portion 21 extending from the first power feeding point 15 and a folded portion 22 that is folded back at an end portion of the main body portion 21 in the downward direction and extends along and in substantially parallel with the main body portion 21 in a direction approaching the first power feeding point 15.
  • the vertical element 31 extends from the first power feeding point 15 in a direction different from the extending direction of the horizontal first element 11 or an extending direction of the horizontal second element.
  • the auxiliary element 12 is arranged so as to extend downward from an intersection point of the vertical portion and the horizontal portion of the first element and then extend along and in substantially parallel with the horizontal first element 11. Further, the auxiliary element 12 is arranged along and in proximity to a defogger 90 (for example, in parallel with the defogger 90 with a spacing of 5 millimeters) so as to be capacitively coupled to an uppermost heating wire 91 of the defogger 90.
  • the auxiliary element 13 is arranged so as to extend rightward from the vertical portion of the first element and extend along and in substantially parallel with the horizontal first element 11.
  • the length of each of elements of the first antenna 10 is adjusted so as to receive the FM radio broadcast band and DAB Band III in a preferred manner.
  • the second antenna 50 includes the plurality of horizontal wires 52, the plurality of vertical wires 53 connecting the horizontal wires 52 to one another, the second power feeding point 54 provided at the end portion of the horizontal wire 52, and folded portions 56 and 57.
  • One of the horizontal wires 52 is arranged between the auxiliary element 13 of the first antenna 10 and the folded portion 22.
  • the folded portions 56 and 57 extend from the uppermost horizontal wire 52 in the upward direction, are folded back in the horizontal direction, and extend along and in proximity to the horizontal wire 52 (for example, in parallel with the horizontal wire 52 with a spacing of 5 millimeters).
  • the folded portions 56 and 57 are arranged in proximity to the body flange 82 of the vehicle body (for example, in parallel with the body flange 82 with a spacing of 5 millimeters), and the second antenna 50 and the body flange 82 (that is, ground) are capacitively coupled to each other.
  • Each wire of the second antenna 50 is adjusted to have a length suitable to receive the AM radio broadcast band (from 526.5 kHz to 1,606.5 kHz).
  • the third antenna 60 is formed of wires of the defogger 90, and the defogger 90 functions as the third antenna.
  • the defogger 90 functioning as the third antenna 60 includes a pair of bus bars 93 provided on the left and right of the rear glass 81, the plurality of heating wires 91 (horizontal wires) connecting the two bus bars 93 to each other, and a vertical wire 92 connecting the plurality of heating wires 91 to one another.
  • the number of vertical wires 92 may be one or a plurality.
  • Defogger coils 94 and a third power feeding point 95 are provided to the bus bars 93.
  • one bus bar 93 is connected to the power supply via the defogger coil 94, and the other bus bar 93 is connected to the ground via the defogger coil 94.
  • the defogger coils 94 By the defogger coils 94, noise in a received frequency band flowing into the third antenna 60 from the power supply and the ground is suppressed.
  • the defogger coil 94 and the third power feeding point 95 are arranged in a central portion of the bus bar 93 so that the defogger coil 94 is positioned on the upper side and the third power feeding point 95 is positioned on the lower side, but the defogger coil 94 and the third power feeding point 95 may be arranged in any positions on the bus bar 93.
  • an arrangement order (vertical positional relationship) of the defogger coil 94 and the third power feeding point 95 is not limited to the order illustrated in FIG. 5 .
  • the first antenna 10 and the third antenna 60 may form a diversity antenna to diversity-receive at least one of an FM radio broadcast wave or a broadcast wave of DAB Band III.
  • the third antenna 60 defogger 90
  • the power feeding point 95 may be provided to the bus bar 93 farther from the first antenna 10 (for example, on the right side).
  • first antenna 10 and the fourth antenna 70 may form a diversity antenna to diversity-receive a DAB broadcast wave.
  • the third antenna 60 includes parallel auxiliary wires 96, 97, and 98 extending from the bus bar 93 and a fourth auxiliary element 89.
  • the end portions of the respective parallel auxiliary wires 96, 97, and 98 are in positions spaced apart from one another. Further, a part of the parallel auxiliary wire 96 and a part of the parallel auxiliary wire 97 are arranged along, in proximity to, and in substantially parallel with each other. In addition, a part of the parallel auxiliary wire 97 and a part of the parallel auxiliary wire 98 are arranged along, in proximity to, and in substantially parallel with each other. In this manner, two of the respective parallel auxiliary wires 96, 97, and 98 are arranged with an overlap, and the respective parallel auxiliary wires are thus capacitively coupled to each other at the end portions. It should be noted that not parts of but almost all of the parallel auxiliary wires may be arranged along and in proximity to each other.
  • the fourth auxiliary element 89 extends upward from the bus bar 93 on the right side (near the fourth antenna 70), and is bent in the leftward direction to further extend.
  • the fourth auxiliary element 89 may extend from the horizontal wire 91 on the outermost side.
  • the fourth antenna 70 is formed of a fourth power feeding point 71, a plurality of horizontal elements 72, and a plurality of vertical elements 73, and is adjusted to have a length suitable to receive a TV broadcast band (from 470 MHz to 770 MHz).
  • the third antenna 60 and the fourth antenna 70 may form a diversity antenna to diversity-receive a TV broadcast.
  • Each of the power feeding points 2, 15, 54, 71, and 95 is connected to the reception amplifier through the connecting line (for example, low voltage cable for automobile), and the reception amplifier is connected to the receiver by the high-frequency cable (for example, coaxial cable). Further, the reception amplifier is connected to the ground (vehicle body).
  • the connecting line for example, low voltage cable for automobile
  • the reception amplifier is connected to the receiver by the high-frequency cable (for example, coaxial cable). Further, the reception amplifier is connected to the ground (vehicle body).
  • the glass antenna according to any one of the examples described above may be used as the fifth antenna 100 according to the example 5 instead of the configuration described with reference to FIG. 5 .
  • the fifth antenna 100 can obtain satisfactory reception performance in two frequencies.
  • the descriptions made below with reference to FIG. 6 and FIG. 7 each relate to a sensitivity of an antenna exhibited when the arrangement or the length of an element described below is changed without changing the configuration of other elements. Further, the sensitivity of the antenna has a value obtained by measuring omnidirectional (360-degree) sensitivities of the antenna within a horizontal plane and calculating an average thereof.
  • FIG. 6 is an illustration of a gain (sensitivity) of the antenna in a low frequency band (315 MHz) exhibited when the length of the overlap portion 1A is changed in the antenna according to the example 5.
  • the length of another element is fixed at the above-mentioned length.
  • the overlap portion 1A is set to have a length of 370 millimeters, the highest sensitivity is obtained.
  • the wavelength ⁇ 1 is set to 315 MHz, the length of the overlap portion 1A is approximately ⁇ 1 /2.
  • FIG. 7 is an illustration of a gain (sensitivity) of the antenna in a high frequency band (433.92 MHz) exhibited when the length of the non-overlap portion 1B of the first element 1 is changed in the antenna according to the example 5.
  • the length of another element is fixed at the above-mentioned length.
  • the non-overlap portion 1B is set to have a length of 235 millimeters, the highest sensitivity is obtained.
  • the wavelength ⁇ 2 is set to 433.92 MHz
  • the length of the non-overlap portion 1B is approximately ⁇ 2 /2.

Landscapes

  • Details Of Aerials (AREA)
  • Support Of Aerials (AREA)
  • Aerials With Secondary Devices (AREA)

Claims (10)

  1. Glasantenne, die auf einem Fensterglas für ein Fahrzeug angeordnet ist, umfassend:
    einen Leistungseinspeisungspunkt (2), der mit einem Empfänger verbunden ist;
    ein erstes Element (1), das sich von dem Leistungseinspeisungspunkt weg erstreckt; und
    ein zweites Element (52F), das nicht mit dem Leistungseinspeisungspunkt verbunden ist, sodass es vom ersten Element in einem vorbestimmten Abstand beabstandet angeordnet ist, wobei:
    das erste Element Folgendes umfasst:
    einen Überlappungsabschnitt (1A), der in der Nähe des zweiten Elements (52F) und entlang des zweiten Elements (52F) angeordnet ist; und
    einen Nicht-Überlappungsabschnitt (1B), der daran gehindert wird, entlang des zweiten Elements angeordnet zu sein; und
    wobei jede Länge des Überlappungsabschnitts und des Nicht-Überlappungsabschnitts derart angepasst ist, dass der Überlappungsabschnitt auf ein erstes Frequenzband abgestimmt ist, und der Nicht-Überlappungsabschnitt auf ein zweites Frequenzband abgestimmt ist,
    dadurch gekennzeichnet,
    dass das erste Frequenzband eine Wellenlänge einer als λ1 eingestellten Mittenfrequenz aufweist;
    dass das zweite Frequenzband eine Wellenlänge einer als λ2 eingestellten Mittenfrequenz aufweist; und
    dass der Überlappungsabschnitt eine Länge von ungefähr αλ1/2 aufweist, und der Nicht-Überlappungsabschnitt eine Länge von ungefähr αλ2/2 aufweist, worin α eine Wellenlängenkürzungsrate des Fensterglases darstellt.
  2. Glasantenne gemäß Anspruch 1, wobei das zweite Element (52F) ein Element umfasst, das konfiguriert ist, eine Antenne (50) zu bilden, die sich von einer Antenne (100), die das erste Element (1) umfasst, unterscheidet.
  3. Glasantenne gemäß Anspruch 1, wobei das zweite Element (52F) eine Leiterbahn umfasst, die keine von der Antenne (100), die das erste Element (1) umfasst, sich unterscheidende Antenne (50) bildet.
  4. Glasantenne gemäß Anspruch 2,
    wobei die Glasantenne eine Antenne ist, die zum Empfangen eines Signals auf einem UHF-Band konfiguriert ist; und
    wobei die das zweite Element (52F) umfassende Antenne (50) eine Antenne ist, die zum Empfangen einer AM-Funkübertragung auf einem Mittelwellenband konfiguriert ist.
  5. Glasantenne gemäß Anspruch 1, wobei das erste Element an einem Mittelpunkt (3) gebogen ist.
  6. Glasantenne gemäß Anspruch 5, wobei ein Teil zwischen einem gebogenen Abschnitt (3) des ersten Elements und dem Leistungseinspeisungspunkt (2) aus einer Vielzahl von Drähten gebildet ist.
  7. Glasantenne gemäß Anspruch 1, wobei das erste Frequenzband niedriger als das zweite Frequenzband ist.
  8. Glasantenne gemäß Anspruch 1,
    wobei das erste Frequenzband eine Mittenfrequenz von ungefähr 315 MHz aufweist; und
    wobei das zweite Frequenzband eine Mittenfrequenz von ungefähr 433,92 MHz aufweist.
  9. Glasantenne gemäß Anspruch 1, wobei der Überlappungsabschnitt einen Abstand von gleich oder weniger als 10 Millimeter zwischen dem ersten Element (1) und dem zweiten Element (52F) aufweist.
  10. Glasantenne gemäß Anspruch 1, wobei das erste Element in einer Position angeordnet ist, die von einer Kante eines Körperflansches (82) eines Kraftfahrzeugs in einem Abstand von gleich oder größer als 5 Millimeter und gleich oder kleiner als 10 Millimeter angeordnet ist, wenn die Glasantenne auf dem Kraftfahrzeug montiert ist, sodass der Körperflansch und das erste Element kapazitiv miteinander gekoppelt sind.
EP14880841.3A 2014-01-29 2014-11-27 Glasantenne Active EP3101734B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014014001A JP6221779B2 (ja) 2014-01-29 2014-01-29 ガラスアンテナ
PCT/JP2014/081374 WO2015114928A1 (ja) 2014-01-29 2014-11-27 ガラスアンテナ

Publications (3)

Publication Number Publication Date
EP3101734A1 EP3101734A1 (de) 2016-12-07
EP3101734A4 EP3101734A4 (de) 2017-09-13
EP3101734B1 true EP3101734B1 (de) 2019-01-02

Family

ID=53756522

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14880841.3A Active EP3101734B1 (de) 2014-01-29 2014-11-27 Glasantenne

Country Status (3)

Country Link
EP (1) EP3101734B1 (de)
JP (1) JP6221779B2 (de)
WO (1) WO2015114928A1 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6709219B2 (ja) * 2015-07-09 2020-06-10 日本板硝子株式会社 車両用窓ガラス
JP6863697B2 (ja) * 2015-10-29 2021-04-21 日本板硝子株式会社 車両用窓ガラス
JP6879744B2 (ja) * 2017-01-11 2021-06-02 日本板硝子株式会社 車両用窓ガラス
JP6812824B2 (ja) 2017-02-14 2021-01-13 Ａｇｃ株式会社 車両用窓ガラス
CN108448224B (zh) 2017-02-14 2020-12-01 Ａｇｃ株式会社 玻璃天线及车辆用窗玻璃
JP6812825B2 (ja) 2017-02-14 2021-01-13 Ａｇｃ株式会社 ガラスアンテナ及び車両用窓ガラス
JP6540782B2 (ja) * 2017-12-13 2019-07-10 マツダ株式会社 ガラスアンテナ

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02811U (de) * 1988-06-13 1990-01-05
JPH06291530A (ja) 1993-04-02 1994-10-18 Nippon Sheet Glass Co Ltd 周波数切換式ガラスアンテナ
JP2000286625A (ja) * 1999-03-30 2000-10-13 Asahi Glass Co Ltd 自動車用高周波ガラスアンテナ
JP4141979B2 (ja) * 2004-04-16 2008-08-27 日本板硝子株式会社 自動車用高周波ガラスアンテナ
JP2007096475A (ja) * 2005-09-27 2007-04-12 Toshiba Corp アンテナ装置および車両用アンテナ装置
JP2007110390A (ja) * 2005-10-13 2007-04-26 Nippon Sheet Glass Co Ltd 自動車用高周波ガラスアンテナ
US7825865B2 (en) * 2006-12-27 2010-11-02 Asahi Glass Company, Limited Glass antenna for an automobile
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
JP2012044254A (ja) * 2010-08-12 2012-03-01 Central Glass Co Ltd 車両用アンテナ
JP2013131889A (ja) * 2011-12-21 2013-07-04 Central Glass Co Ltd 車両用ガラスアンテナ

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP3101734A4 (de) 2017-09-13
WO2015114928A1 (ja) 2015-08-06
EP3101734A1 (de) 2016-12-07
JP2015142246A (ja) 2015-08-03
JP6221779B2 (ja) 2017-11-01

Similar Documents

Publication Publication Date Title
EP3101733B1 (de) Glasantenne
EP3101734B1 (de) Glasantenne
US8217845B2 (en) High frequency glass antenna for automobiles
JP4941171B2 (ja) 車両用ガラスアンテナ
JP5428847B2 (ja) 自動車用のガラスアンテナ
US8111202B2 (en) High frequency wave glass antenna for an automobile and window glass sheet for an automobile with the same
US20160359219A1 (en) Glass antenna for vehicle and rear window glass with glass antenna for vehicle
JP2010154504A (ja) 車両用ガラスアンテナ及び車両用窓ガラス
WO2013094470A1 (ja) 車両用ガラスアンテナ
EP2458672B1 (de) Fahrzeugantennenvorrichtung und Fensterglas
JP5141500B2 (ja) 車両用ガラスアンテナ及び車両用窓ガラス
JP5942851B2 (ja) 車両用ガラスアンテナ及び車両用窓ガラス
WO2019027036A1 (ja) 車載用アンテナ装置
JP2009033687A (ja) 車両用ガラスアンテナ
EP2597726A1 (de) Fahrzeugantenne
JP5003627B2 (ja) 車両用ガラスアンテナ及び車両用窓ガラス
JP5387317B2 (ja) 車両用ガラスアンテナ
JP5386944B2 (ja) 車両用ガラスアンテナ及び車両用窓ガラス
JP2009004989A (ja) 車両用ガラスアンテナ
JP4225373B2 (ja) 車両用のガラスアンテナ
JP2013009252A (ja) 車両用ガラスアンテナ
JP6985598B2 (ja) アンテナ及び窓ガラス
JP2016058946A (ja) 自動車用ガラスアンテナ
JP6379504B2 (ja) ガラスアンテナ
JP2002314314A (ja) 自動車用窓ガラスアンテナ

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20160601

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAX Request for extension of the european patent (deleted)
REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Ref document number: 602014039377

Country of ref document: DE

Free format text: PREVIOUS MAIN CLASS: H01Q0001320000

Ipc: H01Q0001120000

A4 Supplementary search report drawn up and despatched

Effective date: 20170811

RIC1 Information provided on ipc code assigned before grant

Ipc: H01Q 21/30 20060101ALI20170804BHEP

Ipc: H01Q 9/42 20060101ALI20170804BHEP

Ipc: H01Q 1/12 20060101AFI20170804BHEP

Ipc: H01Q 5/378 20150101ALI20170804BHEP

Ipc: H01Q 5/371 20150101ALI20170804BHEP

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20180618

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: AT

Ref legal event code: REF

Ref document number: 1085574

Country of ref document: AT

Kind code of ref document: T

Effective date: 20190115

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602014039377

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20190102

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1085574

Country of ref document: AT

Kind code of ref document: T

Effective date: 20190102

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190102

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190102

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190102

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190102

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190502

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190102

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190402

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190102

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190403

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190102

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190102

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190402

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190502

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190102

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602014039377

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190102

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190102

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190102

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190102

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190102

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190102

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190102

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190102

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190102

26N No opposition filed

Effective date: 20191003

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190102

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190102

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190102

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191127

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191130

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191130

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20191130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191127

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20191130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190102

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20141127

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190102

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20190102

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20221010

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20221006

Year of fee payment: 9

Ref country code: DE

Payment date: 20221004

Year of fee payment: 9