JP2003124719A - Onboard antenna and vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an on-vehicle antenna which improves appearance and reduces cost by devising it so that it functions as an antenna even without attaching the antenna on the external part of a car body. SOLUTION: An opening 5 is provided on one part of a roof 4 of a metallic car body 2 and covered with an exterior member 6. On the exterior member 6 inside a car 3, an electronic circuit board 12 is installed for mounting an amplifier circuit 11 of an antenna 7 or the like and hidden while being supported from the inside of the car 3 by an interior member 8. A circuit to be connected to a glass antenna to be formed on rear glass is integrated to the electronic circuit board 12 as well, efficiency in work for installing a plurality of antennas is improved, and coast required for cables or mechanism components can be reduced as well.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle-mounted antenna and a vehicle as an antenna attached to the vehicle body of a moving body such as an automobile.

[0002]

2. Description of the Related Art Conventionally, a vehicle such as an automobile is equipped with an antenna that enables reception of radio waves while moving. In recent years, the radio waves that the vehicle receives are not limited to medium-wave (MW) AM radio and ultra-high-frequency (VHF) FM radio broadcasts, as well as ultra-high-frequency and ultra-high-frequency (UHF) television broadcasts and high-frequency GPS signals. (GlobalPosi
tioning System) satellite radio waves are also being included. Further, with the rapid spread of car phones and mobile phones, it has become necessary to transmit and receive radio waves for phones. Furthermore, as a part of ITS (Intelligent Transport System), ETC (Electronic Toll Collection system) that automatically collects tolls on expressways and toll roads
And VICS (Vehicle Informa) that provides road traffic information.
The transmission and reception of radio waves are also required for radio wave beacons of the tion and Communication System). Therefore, it has become necessary to mount an antenna for receiving or transmitting many kinds of radio waves on a vehicle.

The body of a vehicle such as an automobile, particularly a frame structure called a body, is mainly made of metal. When mounting an antenna on a vehicle, it is common to mount it on the outside of the vehicle body by, for example, projecting a rod antenna above the body or forming an antenna pattern on the window glass. . JP-A-7-240
Japanese Patent Laid-Open No. 615 and Japanese Patent Application Laid-Open No. 8-204442 disclose a configuration in which an antenna unit is installed on the roof of a vehicle body and a plurality of rod antennas are projected from the antenna unit. Japanese Utility Model Laid-Open No. 6-58608 discloses that a window glass of a moving body such as an automobile is made of resin, and GP is used as a part thereof.
The configuration of the antenna structure in which the S antenna is embedded is disclosed. Japanese Utility Model Laid-Open No. 2-123108 discloses a vehicle antenna in which a vehicle roof is made of resin and an antenna is attached to the surface of the resin.

The vehicle-mounted antenna is not always installed outside the vehicle body. Japanese Unexamined Patent Publication No. 9-277881 discloses an automobile antenna in which an antenna is embedded as a part of a surface material of an instrument panel provided near a driver's seat. The applicant of the present invention is
Japanese Patent Laid-Open No. 200003, Japanese Utility Model Laid-Open No. 5-76113, and Japanese Patent Laid-Open No. 6-152218 disclose a configuration in which an antenna is installed inside the roof of a vehicle. Further, Japanese Patent Laid-Open No. 6-152217 discloses a configuration in which a trunk lid portion at a rear portion of a vehicle body is made of resin and an antenna is embedded.

In Japanese Patent Laid-Open No. 6-104627, a dipole element pattern, a short stub circuit or the like is formed on one surface of a printed circuit board and an earth surface or the like is formed on the other surface as an antenna for a base station in mobile communication. A configuration is disclosed. Japanese Unexamined Patent Publication No. 9-153717 discloses a configuration in which an antenna element of a flat antenna for receiving signals from satellites such as GPS and a low noise amplifier substrate are integrated and molded with a synthetic resin. Japanese Patent Laid-Open No. 10-290174 discloses a configuration in which a bidirectional communication module for connecting a mobile phone or the like to a transmitting / receiving antenna is mounted on a multilayer printed circuit board. In the above-mentioned Japanese Unexamined Patent Publication No. 8-204442, a booster for signal amplification is built in the antenna unit installed on the roof of the vehicle body. In addition, special table 9-5056
Japanese Unexamined Patent Publication No. 96 discloses a structure of a folded dipole antenna formed on a dielectric substrate.

[0006]

Although the car body of an automobile is often made of metal, when an antenna is installed outside the car body, as disclosed in, for example, Japanese Unexamined Patent Publication No. 8-204442, it is made of metal. Since it must be installed on the roof of the body and it stands out, great care must be taken to make it look good. Further, mounting the antenna unit on the vehicle body also requires strength and durability, and also requires waterproofing of a portion for pulling a cable for inputting and outputting the antenna into the vehicle compartment.

Particularly, when the number of types of applications in which the antenna is used increases, the antennas for the respective applications are installed respectively.
It is unattractive and requires mechanical parts and cables for mounting the antenna for each antenna, which causes a cost increase.

An object of the present invention is to provide a vehicle-mounted antenna, a vehicle, and an antenna mounted on the vehicle, which can sufficiently function as an antenna without being attached to the outside of the vehicle body, have a good appearance, and can reduce the cost. Is to provide a method.

[0009]

The present invention is a vehicle-mounted antenna mounted on a vehicle having a metal body, the metal body having an opening provided in a part of a roof of a passenger compartment, A radio wave transmitting exterior material that covers the opening, an antenna that is disposed on the interior side of the exterior material, and an interior material that supports and hides the antenna from the interior side of the vehicle. It is an on-vehicle antenna.

According to the present invention, the metal vehicle body has the opening provided in a part of the roof of the passenger compartment and is covered with the radio wave transmitting exterior material, so that the antenna can be installed with a good appearance. it can. The antenna is arranged on the vehicle interior side of the exterior material, and is supported and hidden by the interior material from the vehicle interior side. Since it is not necessary to install the antenna on the outside of the vehicle body, it is possible to reduce the cost required for mechanical parts, cables, etc. for mounting the antenna.

According to the present invention, a plurality of antennas are arranged on the vehicle interior side of the exterior material.

According to the present invention, since the plurality of antennas are arranged inside the vehicle interior of the exterior material, the antennas can be made invisible from the outside of the vehicle body, and a plurality of antennas can be provided in comparison with the case where the antenna is attached to the outside of the vehicle body. It is also possible to reduce the cost required for the mechanical parts and cables for mounting the antenna.

Further, in the present invention, an electronic circuit board for processing signals of the antenna is provided on the vehicle interior side of the exterior material, and an antenna different from the antenna is installed on the electronic circuit board. Is characterized by.

According to the present invention, the electronic circuit board for processing the signal of the antenna is provided, and the antenna whose frequency band is different from that of the antenna is installed in the shape of the electronic circuit board. The antennas can be integrated and arranged efficiently.

Further, in the present invention, the electronic circuit board is provided with an amplifier circuit for amplifying a signal received by at least one of the antennas.

According to the present invention, since the amplifier circuit for amplifying the signal received by the antenna can be arranged near the antenna, a weak signal can be received with high sensitivity.

According to the present invention, the electronic circuit board is provided with a circuit for combining and distributing the inputs and outputs of the plurality of antennas.

According to the present invention, a circuit for synthesizing and distributing the inputs and outputs of the plurality of antennas is installed on the electronic circuit board arranged in the vicinity of the plurality of antennas. Therefore, cost reduction and wiring workability by cable integration are achieved. It is possible to improve.

Further, at least one of a director and a reflector of the antenna is arranged around the electronic circuit board on the vehicle interior side of the exterior material of the present invention.

According to the present invention, since at least one of the director and the reflector of the antenna is arranged around the electronic circuit board, the gain and directivity of the antenna can be improved.

Further, according to the present invention, a pattern that functions as at least one of a director and a reflector of the antenna is formed in a peripheral portion of the electronic circuit board.

According to the present invention, since the pattern functioning as at least one of the director and the reflector of the antenna is formed on the peripheral portion of the electronic circuit board, the antennas are assembled to improve the installation workability. It is also possible to improve the gain and directivity of the antenna.

Further, according to the present invention, the antenna installed on the electronic circuit board is a patch antenna.

According to the present invention, a patch antenna can be installed on an electronic circuit board and used as an antenna for a high frequency band such as a microwave band or a millimeter wave band.

In the present invention, the opening is formed adjacent to the window glass, and the antenna formed on the window glass is also connected to the electronic circuit board.

According to the present invention, an antenna which requires a relatively low frequency and a long antenna element length is formed on the window glass, and a relatively high frequency antenna is used on the interior side of the exterior material and a thick conductor is used. It can be used in a wide band.

Further, the present invention is a vehicle having a metal vehicle body, wherein the metal vehicle body is provided with an opening portion in a part of a roof of a passenger compartment, and a radio wave transmitting exterior material covering the opening portion. The vehicle is characterized by including an antenna arranged on the vehicle interior side of the exterior material and an interior material that supports and conceals the antenna from the vehicle interior side.

According to the present invention, in a vehicle having a metal body, an opening is provided in a part of a roof of a vehicle compartment and an antenna is installed. Since the antenna is covered with the exterior material and is not exposed to the outside of the vehicle body, the appearance can be improved, the workability of installation work and wiring work can be improved, and the cost required for mechanical parts and cables can be reduced. Since the antenna is supported by the interior material and is hidden from the passenger compartment, the appearance can be improved.

[0029]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a schematic sectional structure of an on-vehicle antenna 1 according to an embodiment of the present invention. The vehicle-mounted antenna 1 is mounted on a vehicle having a metal body 2. The metal body 2 has an opening 5 in a part of the roof 4 of the passenger compartment 3.
Is provided. The opening 5 is covered with a radio wave transmitting exterior material 6 such as synthetic resin. An antenna 7 is arranged inside the vehicle interior 3 of the exterior material 6. The antenna 7 is made of synthetic resin or the like, and is supported from the inside of the vehicle interior 3 by a interior material 8 having an electrically insulating property, and is hidden. In this embodiment,
The opening 5 is provided at a portion of the rear end of the roof of the vehicle body, which is in contact with the upper edge of the rear glass 9. The lower edge of the rear glass is
Continue to trunk 10.

In the present embodiment, the metallic vehicle body 2 has the vehicle interior 3
Since the opening 5 is provided in a part of the roof 4 and is covered with the radio wave transmitting exterior material 6, the antenna 7 can be installed with a good appearance. The antenna 7 is arranged inside the vehicle interior 3 of the exterior material 6, is supported by the interior material 8 from the inside of the vehicle interior 3, and is hidden. Antenna 7 on the outside of the metal body 2
Since it is not necessary to install the antenna, it is possible to reduce the cost required for a mechanical component, a cable and the like for attaching the antenna 7.

The antenna 7 is installed on an electronic circuit board 12 on which an amplifier circuit 11 for amplifying a signal received by the antenna 7 is formed. Since the amplifier circuit 11 for amplifying the signal received by the antenna 7 can be arranged near the antenna, a weak signal can be received with high sensitivity.

FIG. 2 shows an external image of a vehicle 20 equipped with the on-vehicle antenna 1 of FIG. The antenna 7 and the amplifier circuit 11 on the electronic circuit board 12 are actually covered with the exterior material 6 of FIG. 1 and are not visible from the outside. On the electronic circuit board 12, a plurality of antennas including a transmitting / receiving antenna for mobile phones and car phones, an antenna for receiving GPS satellite radio waves, an antenna for transmitting and receiving VICS radio beacons, an ETC antenna, and the like are mounted. . As described above, since the plurality of antennas are arranged inside the vehicle interior 3 of the exterior material 6, it is possible to make them invisible from the outside of the vehicle 20, and compared with the case where the antenna is attached to the outside of the metal body 2. It is also possible to reduce costs required for mechanical parts, cables, etc. for mounting a plurality of antennas.

The opening 5 for accommodating a plurality of antennas inside the vehicle compartment 3 is formed adjacent to the rear glass 9, and the electronic circuit board 12 is provided with glass antennas 21, 22, 23, formed on the rear glass 9. 24 is also connected. The glass antennas 21, 22, 23 and 24 are used for digital broadcasting television (DTV) and analog broadcasting television (AT).
V) and the AM radio broadcast and the FM radio broadcast, respectively, so as to receive a frequency band lower than the frequency band of the antenna 7. Glass antennas 21, 22, 23, which require a relatively low frequency and a long antenna element length,
24 is formed on the window glass such as the rear glass 9. Since the antenna 7 for relatively high frequencies has a short wavelength, the antenna length can be shortened. By arranging the antenna 7 for relatively high frequency inside the vehicle interior 3 of the exterior material 6, the window glass such as the rear glass 9 is shielded from light, and thus the antenna 7 is used by using a thick conductor that cannot be used. Can be formed and used for broadband. In a similar way,
The opening 5 for accommodating the antenna 7 may be provided in the upper edge of the windshield in front of the roof or in the upper edge of the side glass on the side of the roof.

3 and 4 show the structures of the antenna 7 and the electronic circuit board 12. 3 is a front view and FIG. 4 is a plan view in a simplified manner. The electronic circuit board 12 is an electrically insulating substrate made of resin, and conductive layers are provided on both surfaces thereof. A VICS antenna 30 is formed on one peripheral portion of the electronic circuit board 12.
The VICS antenna 30 is formed on the upper surface side of the electronic circuit board 12 by patterning a conductive layer, for example.
An antenna element 31 having a length of ¼λ corresponding to a frequency band of 5 GHz is provided, a ground pattern is entirely provided on the lower surface side, and a ground pattern removal portion 32 having no ground pattern is provided at a portion facing the antenna element 31. Have. For the antenna element 31, one side 33 of the ground pattern cutout 32 can be used as a reflector. It is also possible to form the director pattern 34 on the upper surface side of the electronic circuit board 12 on the opposite side with respect to the one side 33 of the ground pattern cutout 32 used as a reflector and the antenna element 31. It is also possible to form a dedicated reflector pattern or use the antenna element 31 as a patch antenna. Further, on the lower surface side of the electronic circuit board 12, an antenna directional molding device 35 that operates as a reflector can be provided.

At the other peripheral edge of the electronic circuit board 12, E
The TC antenna 40 is formed. ETC antenna 40
Like the VICS antenna 30, by patterning a conductive layer, the electronic circuit board 12 has an antenna element 41 having a length of ¼λ corresponding to a frequency band of 5.8 GHz and a lower surface on the lower surface side. Has a ground pattern removal portion 42. For the antenna element 41, one side 43 of the ground pattern cutout 42 can be used as a reflector. It is also possible to form the director pattern 44 on the upper surface side of the electronic circuit board 12 on the side 43 opposite to the side 43 of the ground pattern cutout 42 used as a reflector and the antenna element 41. It is also possible to form a dedicated reflector pattern or use the antenna element 41 as a patch antenna. Further, an antenna directional molding device 45 that operates as a reflector may be provided on the lower surface side of the electronic circuit board 12.

The antenna 7 arranged near the center of the electronic circuit board 12 is for GPS corresponding to the frequency band of 1.5 GHz, for example, and is formed as a patch antenna on the GPS antenna board 50. GPS antenna board 50
Is an insulating material having a higher dielectric constant than the electronic circuit board 12, such as synthetic resin. The antenna 7 is an electronic circuit board 12
Is arranged on the upper surface side of the GPS LN as an amplifier circuit 11 for amplifying GPS satellite radio waves with low noise.
A is placed.

On the electronic circuit board 12, for example, 2GH
The helical antenna 60 may be mounted for telephone communication in the z band. GPS antenna 7, VICS antenna 30, ETC antenna 40, and helical antenna 6
0 is integrated by the synthesis distributor 65, and is connected to the device inside the metal vehicle body 2 via the integrated integrated input / output cable 66. Further, as shown in FIG. 2, glass antennas 21, 22, 23, 24 provided on a rear glass 9 are connected to the electronic circuit board 12 as antennas different from the antenna 7 and the like formed on the electronic board 12. An amplifier / selector circuit 67 is also provided. The amplifier / selector circuit 67 includes a plurality of glass antennas 21, 22, 23, 2
Switching of 4 and amplification of signals received by at least some of the antennas are performed. The amplifier / selector circuit 67 and the equipment inside the metal body 2 are connected to the output line 6 for each signal.
8 is connected.

FIG. 5 shows a schematic electrical configuration of the vehicle-mounted antenna 1 of this embodiment. The combination distributor 65 includes a telephone helical antenna 60, an ETC antenna 40, and a VI.
Filters 71, 72, 73, 74 of frequency bands suitable for the CS antenna 30 and the GPS antenna 7 are provided, respectively. Regarding the GPS antenna 7, the amplifier circuit 11 is inserted between the antenna 7 and the filter 74. The filters 71, 72, 73, 74 are connected integrally to the integrated input / output cable 66.

The amplifier / selector circuit 67 for connecting the glass antennas 21, 22, 23, and 24 has a large-scale semiconductor integrated circuit (LSI) FM / TV amplifier / selector 77, an AM amplifier 78, and A filter 79 and is included. From the filter 79, the received signal of AM broadcast,
The main reception signal of FM is taken out through the output line 68a. F
From the M / TV amplifier / selector 77, an FM sub signal, an analog television broadcast (ATV) reception signal,
A plurality of digital television broadcast (DTV) received signals and output signals 68b, 68c and 68d are taken out respectively.
The FM main signal and the FM sub signal are switched and used for diversity reception. DTV is VH
Separated by F and UHF. What is the main of AM and FM?
Separate on the tuner side.

FIG. 6 shows an equivalent structure of the combine / divider 65 of FIG. Filters 71, 72, 73, 74 are each represented by a series circuit of coils 71a, 72a, 73a, 74a and capacitors 71b, 72b, 73b, 74b, respectively. By changing the resonance frequency of each series circuit, a signal input / output via the common integrated input / output cable 66 is transmitted to the helical antenna 60, ET for telephone.
It can be divided into a C antenna 40, a VICS antenna 30, and a GPS antenna 7.

In FIG. 7, the FM / TV amplifier / selector 77 of FIG. 5 has an electronic switch circuit 80, and turns on any one of the switches 81, 82, 83, 84 according to a switching signal and turns off the other. Then, the glass antennas 21 and 2
It can be switched to select one of 2, 23, 24. Selected glass antennas 21,22
Received signals from 23 and 24 are amplified by an amplifier circuit 85 and guided to a tuner as an FM sub signal.

FIG. 8 shows a schematic sectional structure of an on-vehicle antenna 91 according to another embodiment of the present invention. Similarly to the vehicle-mounted antenna 1 of the embodiment of FIG. 1, the vehicle-mounted antenna 91 of the present embodiment is also provided inside the vehicle interior 3 of the opening 5 of the roof 4 of the metal body 2 as shown in FIGS. 1 and 2. Installed,
It is covered by the exterior material 6 and supported and hidden by the interior material 8. The vehicle-mounted antenna 91 of this embodiment uses a multilayer dielectric substrate as the electronic circuit substrate 92. The uppermost layer of the electronic circuit board 92 is a conductive layer, and by patterning, the patch antenna 93 for GPS, VICS or ET.
The antenna patterns 94 and 95 for C are formed.
The GPS patch antenna 93 faces the second conductive layer via the relatively thick dielectric layer 96. A ground pattern 97 for the patch antenna 93 formed by patterning is provided on the second conductive layer. The second conductive layer is further opposed to the lowermost conductive layer in the third layer via the dielectric layer 98. On the third conductive layer, the amplifier circuit 11 and the composite distributor 65 similar to those of the embodiment of FIG. 1 are formed. The patch antenna 93 and the amplifier circuit 11 are connected by a power feeding metal pin 99.

The frequency band of each antenna is the same as that of the embodiment shown in FIG. The ground pattern 97 for GPS is
You may make it use as a reflector of the antenna patterns 94 and 95 for VICS and ETC. Further, an amplifier / selector circuit 67 similar to that of the embodiment of FIG. 1 is added,
It is also possible to connect the glass antennas 21, 22, 23 and 24 to perform switching for diversity.

[0044]

As described above, according to the present invention, a metal car body is provided with an opening in a part of the roof of a vehicle compartment and is covered with a radio wave permeable exterior material. Since it is placed on the inside of the vehicle, is supported by the interior material from the inside of the vehicle, and is hidden, it is not necessary to install an antenna outside the vehicle body, and the cost required for mechanical parts and cables for mounting the antenna is reduced. You can Since the antenna is not visible from outside the vehicle or inside the vehicle, the appearance can be improved.

Further, according to the present invention, the cost required for the mechanical parts and cables for mounting the antenna is reduced as compared with the case where the plurality of antennas are arranged inside the vehicle interior of the exterior material and mounted outside the vehicle body. It can also look good.

Further, according to the present invention, since the antenna having a frequency band different from that of the antenna is installed on the electronic circuit board for processing the signals of the antenna, the plurality of antennas are integrated on the vehicle interior side of the exterior material to reduce the cost. Reduction and improvement of installation workability can be achieved.

Further, according to the present invention, since the amplifier circuit is arranged near the antenna, a weak signal can be received with high sensitivity.

Further, according to the present invention, a circuit for synthesizing and distributing the inputs and outputs of a plurality of antennas is installed on the electronic circuit board, so that the cost can be reduced and the wiring workability can be improved by integrating the cables.

Further, according to the present invention, it is possible to improve the gain and the directivity by disposing at least one of the director and the reflector of the antenna around the electronic circuit board.

Further, according to the present invention, a pattern that functions as at least one of the director and the reflector of the antenna is formed on the peripheral portion of the electronic circuit board to improve the installation workability by assembling the antenna. In addition, the gain and directivity can be improved.

Further, according to the present invention, a patch antenna can be installed on the electronic circuit board and used for a high frequency band such as a microwave band and a millimeter wave band.

Further, according to the present invention, a low frequency antenna can be formed on the window glass, and the high frequency antenna can be used in a wide band in the vehicle interior side of the exterior material by using a thick conductor.

Further, according to the present invention, even in a vehicle having a metal body, an opening is provided in a part of the roof of the passenger compartment, an antenna is installed to improve the appearance, and workability of installation work and wiring work is improved. The cost required for mechanical parts and cables can be reduced.

[Brief description of drawings]

FIG. 1 is a vehicle-mounted antenna 1 according to an embodiment of the present invention.
3 is a cross-sectional view showing the schematic configuration of FIG.

FIG. 2 is a perspective view showing a state in which the vehicle-mounted antenna 1 of FIG. 1 is mounted on a vehicle 20 partially transparently.

FIG. 3 is a simplified front view of the electronic circuit board 12 of FIG.

4 is a simplified plan view of the electronic circuit board 12 of FIG.

5 is a block diagram showing a schematic electrical configuration of the vehicle-mounted antenna 1 of FIG. 1. FIG.

6 is an equivalent electrical circuit diagram of the combine / divider 65 of FIG.

7 is an equivalent electric circuit diagram of the FM / TV amplifier / selector 77 of FIG.

FIG. 8 is a sectional view showing a schematic configuration of a vehicle-mounted antenna 91 according to another embodiment of the present invention.

[Explanation of symbols]

1,91 In-vehicle antenna 2 metal car body 3 car compartment 4 roof 5 openings 6 Exterior materials 7 antenna 8 interior materials 9 Rear glass 11 Amplifier circuit 12,92 Electronic circuit board 20 vehicles 21,22,23,24 glass antenna 30 VICS antenna 31,41 Antenna element 32, 42 Ground pattern removal part 33,43 one side 40 ETC antenna 50 GPS antenna board 60 helical antenna 65 Composite distributor 66 integrated input / output cable 67 Amp Selector Circuit 68 Output line 93 patch antenna 94,95 antenna pattern 97 grand pattern

Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) H01Q 13/08 H01Q 13/08 23/00 23/00 H04B 1/18 H04B 1/18 A (72) Inventor Naoki Hisashima 1-2-2 Gosho-dori, Hyogo-ku, Kobe-shi, Hyogo Within Fujitsu Ten Ltd. (72) Inventor Tetsuji Imoto 1-2-28 Gosho-dori, Hyogo-ku, Kobe, Hyogo Prefecture F-term inside Fujitsu Ten Ltd. (reference) 5J021 AA04 AA13 AB06 CA05 FA26 FA32.

Claims (10)

[Claims] 1. An on-vehicle antenna mounted on a vehicle having a metallic vehicle body, wherein the metallic vehicle body has an opening provided in a part of a roof of a vehicle compartment, and the radio wave transmitting property covers the opening. A vehicle-mounted antenna, comprising: an exterior material, an antenna disposed on the interior side of the exterior material, and an interior material that supports and hides the antenna from the interior side of the vehicle. 2. The vehicle-mounted antenna according to claim 1, wherein a plurality of antennas are arranged on the interior side of the exterior material. 3. An electronic circuit board for processing a signal of the antenna is provided on the vehicle interior side of the exterior material, and an antenna different from the antenna is installed on the electronic circuit board. The vehicle-mounted antenna according to claim 1 or 2. 4. The vehicle-mounted antenna according to claim 3, wherein an amplifier circuit that amplifies a signal received by at least one of the antennas is installed on the electronic circuit board. 5. The vehicle-mounted antenna according to claim 3, wherein the electronic circuit board is provided with a circuit for combining and distributing the inputs and outputs of the plurality of antennas. 6. At least one of a director and a reflector of the antenna is arranged on the vehicle interior side of the exterior material and around the electronic circuit board. 5. The vehicle-mounted antenna according to any one of 5 above. 7. The electronic circuit board according to claim 3, wherein a pattern that functions as at least one of a director and a reflector of the antenna is formed in a peripheral portion of the electronic circuit board. The vehicle-mounted antenna according to claim 1. 8. The antenna installed on the electronic circuit board is a patch antenna.
The in-vehicle antenna according to any one of to 7. 9. The method according to claim 3, wherein the opening is formed adjacent to a window glass, and an antenna formed on the window glass is also connected to the electronic circuit board. The vehicle-mounted antenna according to claim 1. 10. A vehicle having a metallic vehicle body, wherein the metallic vehicle body is provided with an opening in a part of a roof of a passenger compartment, and a radio wave transmitting exterior material covering the opening, and the exterior. A vehicle, comprising: an antenna disposed on the vehicle interior side of the material; and an interior material that supports and hides the antenna from the vehicle interior side.