CN214797693U

CN214797693U - Be applied to on-vehicle glass antenna device

Info

Publication number: CN214797693U
Application number: CN202120762625.7U
Authority: CN
Inventors: 董梦银; 班涛; 潘成伟
Original assignee: Fuyao Glass Industry Group Co Ltd
Current assignee: Fuyao Glass Industry Group Co Ltd
Priority date: 2021-04-14
Filing date: 2021-04-14
Publication date: 2021-11-19
Anticipated expiration: 2031-04-14

Abstract

The utility model discloses a glass antenna device applied to vehicle, which comprises vehicle glass, wherein a first antenna unit is arranged inside the vehicle glass, a second antenna unit is arranged on the outer surface of the vehicle glass, and the second antenna unit is connected with a ground plate; a feeder device is arranged on one surface of the grounding plate opposite to the vehicle glass and is used for being connected with a control device; the first antenna unit and the second antenna unit are electrically connected with the feeder device respectively; the projection part of the first radiator in the direction of the ground plate is superposed with the second radiator. The utility model discloses a vehicle glass is as the dielectric plate of antenna element to realized installing glass antenna device inside the vehicle, avoided taking place because glass antenna device installs at the shark fin and the design difficulty and the windage increase scheduling problem that appear, also can avoid the influence to other electronic component in the vehicle to glass antenna device simultaneously.

Description

Be applied to on-vehicle glass antenna device

Technical Field

The utility model relates to an intelligent transportation equipment field, concretely relates to be applied to on-vehicle glass antenna device.

Background

With the development of automobile intellectualization, the vehicle network technology is a most important link, and the vehicle networking is a large system for carrying out wireless communication and information exchange between vehicles and vehicles, roads, pedestrians, the internet and the like respectively based on an in-vehicle network, an inter-vehicle network and a vehicle-mounted mobile internet according to an agreed communication protocol and a data interaction standard, and is an integrated network capable of realizing intelligent traffic management, intelligent dynamic information service and intelligent control of the vehicles; in the vehicle network technology, the vehicle-mounted antenna plays a vital role, and can be divided into a communication antenna, a broadcast antenna, a television antenna, a radar antenna and the like according to purposes.

The communication antenna is an antenna for vehicle mobile communication, and many of the 5G technologies come, the 5G technology is a fifth Generation mobile communication technology (english: 5th Generation mobile networks or 5th Generation wireless systems, 5th-Generation, abbreviated as 5G or 5G technology), is a latest Generation cellular mobile communication technology, and is also an extension following 4G (LTE-A, WiMax), 3G (UMTS, LTE) and 2G (gsm) systems. At present, more and more vehicles are loaded with vehicle-mounted 5G antennas, the vehicle-mounted 5G antennas are mainly installed in external shark fins or in front of an instrument panel, the external shark fins can affect the appearance design of an automobile body, the design difficulty is increased, meanwhile, the wind resistance of an automobile is increased, when the external shark fins are combined with other antennas and placed in front of the instrument panel, the external shark fins are greatly affected by surrounding electric devices, and the performance of the antennas is limited.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problem, the utility model provides a be applied to on-vehicle glass antenna device can install on vehicle glass, avoids taking place because the windage of increase car when installing the increase design degree of difficulty that appears in the shark fin to and install the influence that receives electric device on every side that appears before the panel board etc. great, thereby the problem of restriction antenna performance.

In order to achieve the above object, the utility model discloses the technical scheme who takes includes: a glass antenna device applied to a vehicle comprises vehicle glass, wherein a first antenna unit is arranged inside the vehicle glass and comprises a first radiating body and a first microstrip feeder line connected with the first radiating body, a second antenna unit is arranged on the outer surface of the vehicle glass and comprises a second radiating body, and the second antenna unit is connected with a ground plate; a feeder device is arranged on one surface of the grounding plate opposite to the vehicle glass and is used for being connected with a control device; the first antenna unit and the second antenna unit are electrically connected with the feeder device respectively; the projection part of the first radiator in the direction of the ground plate is superposed with the second radiator.

As a preferred technical solution of the present invention: the first radiator and the first microstrip feeder are arranged inside the vehicle glass, a gap is formed in the grounding plate, and the first antenna unit is in coupling connection with the feeder device.

As a preferred technical solution of the present invention: the first radiator comprises a first radiation unit and a second radiation unit; the first radiation unit and the second radiation unit are in an inverted F shape, and the tail end of the first radiation unit is connected with the head end of the second radiation unit; the tail end of the second radiating element is connected with the first microstrip feeder line.

As a preferred technical solution of the present invention: the second radiator comprises a third radiating unit and a fourth radiating unit which are respectively connected with the grounding plate, and the third radiating unit and the fourth radiating unit are L-shaped.

As a preferred technical solution of the present invention: the feeder device comprises a dielectric plate, and a second microstrip feeder is arranged on one surface of the dielectric plate opposite to the vehicle glass.

As a preferred technical solution of the present invention: and the tail end of the second microstrip feeder line is provided with a branch knot.

As a preferred technical solution of the present invention: the branch knots are round in shape.

As a preferred technical solution of the present invention: the gap is dumbbell-shaped or I-shaped or H-shaped or L-shaped.

As a preferred technical solution of the present invention: the vehicle glass is laminated glass, the first antenna unit is arranged in the laminated glass, and the second antenna unit is arranged on the outer surface of the laminated glass.

Compared with the prior art, the utility model discloses following beneficial effect has at least:

the utility model discloses a set up the second antenna element on vehicle glass's inside sets up first antenna element and vehicle glass's surface, utilize vehicle glass as antenna element's dielectric plate, realize antenna element and vehicle glass's high combination, thereby realized installing glass antenna device inside the vehicle, reduce whole section height, avoid taking place because of glass antenna device installs the problem that the increase vehicle design degree of difficulty and windage that the shark fin appears, also can avoid the influence to other electronic component in the vehicle to glass antenna device simultaneously, applicable in realizing 5G honeycomb communication.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic structural diagram of a first antenna unit;

fig. 3 is a schematic structural diagram of a second antenna unit and a ground plate;

FIG. 4 is a schematic structural diagram of a second microstrip feed line;

fig. 5 is a return loss diagram of the present invention.

Fig. 1-5 show the parts, 1, vehicle glass, 2, a first antenna unit, 3, a second antenna unit, 4, a feeder device, 5, a ground plate, 6, a first radiator, 7, a first microstrip feeder, 8, a second radiator, 9, a first radiation unit, 10, a second radiation unit, 11, a third radiation unit, 12, a fourth radiation unit, 13, a dielectric plate, 14, a second microstrip feeder, 15, a branch, 16, a slot, 17, inner layer glass, 18, an intermediate layer, 19, and outer layer glass.

Detailed Description

In order to make the objects and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," "fourth," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "coupled" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1, the embodiment of the present invention provides an on-vehicle glass antenna device, including vehicle glass 1, vehicle glass 1 is skylight glass, but not limited to skylight glass, and also can be front windshield glass or rear windshield glass. A first antenna unit 2 is arranged inside the vehicle glass 1, the first antenna unit 2 comprises a first radiator 6 and a first microstrip feeder 7 connected with the first radiator, a second antenna unit 3 is arranged on the outer surface of the vehicle glass 1, and the second antenna unit 3 comprises a second radiator 8 and a second microstrip feeder 14 connected with the second radiator; the second antenna unit 3 is connected with the ground plate 5; a feeder device 4 is arranged on one surface of the ground plate 5 opposite to the vehicle glass 1, the feeder device 4 is used for being connected with a control device, and the first antenna unit 2 and the second antenna unit 3 are respectively electrically connected with the feeder device 4; the control device is a device for performing information interaction and processing 5G signals with an external communication base station through the first antenna unit 2 and the second antenna unit 3; the radiation points of the first antenna unit 2 and the second antenna unit 3 are matched with each other and are respectively set to be a high frequency band and a low frequency band of a chinese mobile 5G signal, for example, the first antenna unit 2 provides the high frequency band of the chinese mobile 5G signal, the second antenna unit 3 provides the low frequency band of the chinese mobile 5G signal, of course, the first antenna unit 2 provides the low frequency band of the chinese mobile 5G signal, and the second antenna unit 3 provides the high frequency band of the chinese mobile 5G signal. This application sets up second antenna element 3 on through the inside at vehicle glass 1 sets up first antenna element 2 and vehicle glass 1's the surface, utilize vehicle glass 1 as antenna element's dielectric plate 13, realize antenna element and glass's high combination, thereby the whole height after the installation of this application has been reduced, thereby realized installing 5G antenna device inside the vehicle, avoid appearing installing at the shark fin because of 5G antenna device, the increase vehicle design degree of difficulty and the problem that windage increase appear, other electronic component in the vehicle also can be avoided simultaneously to 5G antenna device's influence.

In order to further reduce the overall cross-sectional structural height of the present application, the first antenna element 2 and the second antenna element 3 may be disposed on the vehicle glass 1 by printing or plating (not limited thereto), that is, the first radiator 6 and the first microstrip feed line 7 are disposed inside the vehicle glass 1. As shown in fig. 2, the first radiator 6 includes a first radiation unit 9 and a second radiation unit 10; the first radiation unit 9 and the second radiation unit 10 are in the shape of an inverted F, and the tail end of the first radiation unit 9 is connected with the head end of the second radiation unit 10; the end of the second radiating element 10 is connected to the first microstrip feed line 7. The first radiation unit 9 and the second radiation unit 10 realize multi-frequency points through branches with different sizes, and meanwhile, the first radiation unit 9 and the second radiation unit 10 can influence each other to generate new low-frequency-band resonance frequency points, so that the adaptation to the low frequency band of the 5G signal is realized; the projection part of the first radiator 6 in the direction of the grounding plate 5 is superposed on the second radiator 8; as shown in fig. 3, the second radiator 8 includes a third radiation unit 11 and a fourth radiation unit 12, the third radiation unit 111 and the fourth radiation unit 12 are connected to the ground plate 5, the third radiation unit 11 and the fourth radiation unit 12 are L-shaped, the first radiator 6 and the second radiator 8 affect each other, the third radiation unit 11 and the fourth radiation unit 12 adopt L-shaped deformation branches, and the resonance frequency point is increased by loading the branches, so as to achieve adaptation to the high frequency band of the 5G signal. The feeder device 4 comprises a dielectric plate 13, a second microstrip feeder 14 is arranged on one surface of the dielectric plate 13 opposite to the vehicle glass 1, the dielectric plate 13 is made of FR4 plate, and the FR4 plate has high mechanical performance, dielectric performance, heat resistance and moisture resistance and good machinability. In order to improve manufacturability, the dielectric plate 13 may be disposed on the outer surface of the vehicle glass 1 in an adhesive manner (not limited thereto), preferably, a low dielectric adhesive is used for adhesion, the low dielectric adhesive includes, but is not limited to, an ultraviolet light curing adhesive, a reactive polyurethane hot melt adhesive, an epoxy adhesive, an acrylate adhesive, a polyurethane adhesive, and the like, and the second microstrip feeder 14 is connected with the control device through a coaxial feeder; the ground plate 5 is provided with a slit 16. The second microstrip feeder line 14 and the first microstrip feeder line 7 are in slot coupling connection through a slot 16 on the ground plate 5, so that the vehicle glass does not need to be drilled or provided with process structures such as through holes and the like, the manufacturing process is greatly simplified, and the cost is saved; as shown in fig. 4, a branch 15 is disposed at the end of the second microstrip feed line 14, and the branch is preferably circular in shape, so that the impedance bandwidth is good; the shape of the slot 16 can be a dumbbell shape, but is not limited to the dumbbell shape, and can also be an I-shaped, H-shaped or L-shaped structure, and the like, and the dumbbell-shaped slot is opposite to the first microstrip feed line 7 and the second microstrip feed line 14, so that slot coupling feed is realized, and the overall section structure height of the application is further reduced. As shown in FIG. 5, the resonance frequency point of the utility model covers 2515 MHz-2675 MHz and/or 4800 MHz-4900 MHz of China mobile, and can be used for realizing 5G cellular communication.

The vehicle glass 1 can be single-layer glass, such as glass used for vehicles, such as tempered glass; laminated glass such as laminated glass or hollow glass; the laminated glass comprises an inner layer of glass 17, an intermediate layer of glass 18 and an outer layer of glass 19, and the first antenna unit 2 can be arranged on the intermediate layer of glass 18 in a printing mode (not limited by the way) or embedded in the glass; the second antenna element 3 may be disposed on the outer surface of the inner layer glass 17 in a printed form (not limited thereto); the second antenna unit 3 is connected with the grounding plate 5 provided with the dumbbell-shaped gap, and the feeder device 4 is directly adhered or arranged on the grounding plate 5 on the fourth surface in other modes, so that the overall section height of the antenna structure is reduced; the vehicle glass 1 is used as a dielectric plate, the overall height of the antenna is reduced, the antenna is easy to process, the production cost is low, and if the glass antenna device is applied to scenes such as high-precision positioning and the like and is arranged on skylight glass in a carrying manner, the reliability of the antenna in operation can be ensured and the performances such as the attractiveness of the antenna can not be influenced compared with a front windshield glass or a rear windshield glass which is arranged at a certain inclination; meanwhile, in order to be used on skylight glass conveniently and not block light in a vehicle, the dielectric plate 13 of the feed device is made of transparent materials; the dielectric plate 13 may be made of transparent material such as PET (polyethylene terephthalate), and the first antenna unit 2, the second antenna unit 3, the second microstrip feeder 14, the ground plate 5, etc. may also be printed by using transparent metal material.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a be applied to on-vehicle glass antenna device, includes vehicle glass, its characterized in that: a first antenna unit is arranged inside the vehicle glass and comprises a first radiating body and a first microstrip feeder line connected with the first radiating body, a second antenna unit is arranged on the outer surface of the vehicle glass and comprises a second radiating body, and the second antenna unit is connected with the ground plate; a feeder device is arranged on one surface of the grounding plate opposite to the vehicle glass and is used for being connected with a control device; the first antenna unit and the second antenna unit are electrically connected with the feeder device respectively; the projection part of the first radiator in the direction of the ground plate is superposed with the second radiator.

2. A glass antenna device for vehicle use according to claim 1, wherein: the first radiator and the first microstrip feeder are arranged inside the vehicle glass, a gap is formed in the grounding plate, and the first antenna unit is in coupling connection with the feeder device.

3. A glass antenna device for vehicle use according to claim 2, wherein: the first radiator comprises a first radiation unit and a second radiation unit; the first radiation unit and the second radiation unit are in an inverted F shape, and the tail end of the first radiation unit is connected with the head end of the second radiation unit; the tail end of the second radiating element is connected with the first microstrip feeder line.

4. A glass antenna device for vehicle use according to claim 1, wherein: the second radiator comprises a third radiating unit and a fourth radiating unit which are respectively connected with the grounding plate, and the third radiating unit and the fourth radiating unit are L-shaped.

5. A glass antenna device for vehicle use according to claim 2, wherein: the feeder device comprises a dielectric plate, and a second microstrip feeder is arranged on one surface of the dielectric plate opposite to the vehicle glass.

6. The glass antenna device for vehicle use according to claim 5, wherein: and the tail end of the second microstrip feeder line is provided with a branch knot.

7. The glass antenna device for vehicle use according to claim 6, wherein: the branch knots are round in shape.

8. A glass antenna device for vehicle use according to claim 2, wherein: the gap is dumbbell-shaped or I-shaped or H-shaped or L-shaped.

9. A glass antenna device for vehicle use according to claim 1, wherein: the vehicle glass is laminated glass, the first antenna unit is arranged in the laminated glass, and the second antenna unit is arranged on the outer surface of the laminated glass.

10. The glass antenna device for vehicle use according to any one of claims 1 to 9, wherein: the resonance frequency point of the glass antenna device covers at least one frequency band of 2515 MHz-2675 MHz and 4800 MHz-4900 MHz.