阅读说明：本技术 车载天线组件及车载天线装置 (Vehicle-mounted antenna assembly and vehicle-mounted antenna device ) 是由 雷皓强 曹扬秋 王林伟 马海波 于 2021-09-13 设计创作，主要内容包括：本申请公开了一种车载天线组件及车载天线装置。车载天线组件包括：基板、至少两组移动通信天线振子组、定位天线模块和车联网天线模块。基板的两端分别设置有开口槽；两组移动通信天线振子组分别设置于基板的两端,每一组移动通信天线振子组包括至少两个移动通信天线振子,每一组移动通信天线振子组中至少两个移动通信天线振子分别设置于对应的开口槽的两侧；定位天线模块设置于基板上且配置于基板的两端之间；车联网天线模块设置于基板上且配置于定位天线模块的旁边。因此,车载天线组件可解决车载移动通信系统中移动通信天线振子之间隔离度差的问题,且实现车载组合天线的小型化以及轻量化的布置需求。(The application discloses on-vehicle antenna module and on-vehicle antenna device. The vehicle-mounted antenna assembly includes: the antenna comprises a substrate, at least two groups of mobile communication antenna vibrator groups, a positioning antenna module and a vehicle networking antenna module. Open slots are respectively arranged at two ends of the substrate; two groups of mobile communication antenna oscillator groups are respectively arranged at two ends of the substrate, each group of mobile communication antenna oscillator group comprises at least two mobile communication antenna oscillators, and at least two mobile communication antenna oscillators in each group of mobile communication antenna oscillator groups are respectively arranged at two sides of the corresponding open slot; the positioning antenna module is arranged on the substrate and is arranged between two ends of the substrate; the car networking antenna module is arranged on the substrate and beside the positioning antenna module. Therefore, the vehicle-mounted antenna assembly can solve the problem of poor isolation between mobile communication antenna elements in a vehicle-mounted mobile communication system, and the arrangement requirements of miniaturization and light weight of the vehicle-mounted combined antenna are met.)

1. An on-board antenna assembly, comprising:

the device comprises a substrate, wherein open grooves are respectively formed in two ends of the substrate;

at least two groups of mobile communication antenna oscillator groups which are respectively arranged at two ends of the substrate, wherein each group of mobile communication antenna oscillator group comprises at least two mobile communication antenna oscillators, and the at least two mobile communication antenna oscillators in each group of mobile communication antenna oscillator groups are respectively arranged at two sides of the corresponding open slot;

the positioning antenna module is arranged on the substrate and is configured between two ends of the substrate; and

and the vehicle networking antenna module is arranged on the substrate and is arranged beside the positioning antenna module.

2. The vehicular antenna assembly of claim 1, further comprising: the first matching circuit unit is connected with the at least two groups of mobile communication antenna vibrator groups and is used for adjusting the impedance of the at least two groups of mobile communication antenna vibrator groups; the vehicle networking antenna module comprises a vehicle networking antenna element for receiving signals and a second matching circuit unit for adjusting the impedance of the vehicle networking antenna element.

3. The vehicle antenna assembly of claim 2, wherein a distance between a location on the substrate where the vehicle networking antenna element is disposed and an edge of the substrate is greater than 20 millimeters.

4. The vehicular antenna assembly of claim 1, wherein there are two of the open slots, the two open slots extending from edge openings at both ends of the substrate in a direction parallel to a width direction of the substrate to have opening depths, each of the opening depths corresponding to widths of adjacent ones of the mobile communication antenna elements in the direction parallel to the width direction of the substrate.

5. The vehicle antenna assembly of claim 1, wherein the vehicle networking antenna module comprises a plurality of vehicle networking antenna elements, the plurality of vehicle networking antenna elements being respectively configured on different sides of the positioning antenna module to adjust the directivity of the vehicle networking antenna module.

6. The vehicular antenna assembly of claim 1, wherein the vehicle networking antenna module comprises two vehicle networking antenna elements, and wherein the positioning antenna module is configured between the two vehicle networking antenna elements.

7. The vehicle antenna assembly of claim 1, wherein the positioning antenna module comprises:

the positioning antenna oscillator is used for receiving satellite positioning signals; and

and the amplifying circuit unit is connected with the positioning antenna oscillator and used for receiving and amplifying the satellite positioning signal so as to output a position signal.

8. An on-vehicle antenna device, characterized by comprising:

the vehicular antenna assembly of any one of claims 1-3 or 5-7; and

the base plate is arranged on the mounting base, and the at least two groups of mobile communication antenna oscillator groups are respectively coupled with the parts of the mounting base corresponding to the positions of the base plate so as to adjust the resonant frequency.

9. The vehicular antenna apparatus according to claim 8, wherein the mounting base is made of a material having a dielectric constant of 2.2 to 2.6, each of the mobile communication antenna vibrator groups is a 5G mobile communication antenna vibrator group, and the internet-of-vehicles antenna module is a V2X internet-of-vehicles antenna module.

10. The vehicular antenna apparatus according to claim 8, wherein the mounting base includes at least two platforms and a groove, the at least two platforms are located on two sides of the groove, the at least two platforms are close to the substrate relative to the groove, the at least two sets of mobile communication antenna vibrators are arranged corresponding to the at least two platforms, each set of mobile communication antenna vibrators is respectively coupled to the platforms corresponding to positions, and a distance between each set of mobile communication antenna vibrators and the platforms corresponding to positions is less than 5 mm.

11. The vehicular antenna apparatus according to claim 10, wherein the two open slots extend from edge openings at two ends of the substrate in a direction parallel to a width direction of the substrate to have opening depths, each opening depth corresponds to a width of the adjacent mobile communication antenna element in the direction parallel to the width direction of the substrate, and each opening depth is greater than a width of the platform corresponding to the adjacent mobile communication antenna element in the direction parallel to the width direction of the substrate.

12. The vehicle-mounted antenna device according to claim 10, wherein an opening of the groove faces the substrate, a side wall of the groove is provided with a plurality of openings, and the vehicle-mounted antenna device further comprises a plurality of transmission lines connected to output ports of the at least two sets of mobile communication antenna vibrator groups, the positioning antenna module, and the vehicle networking antenna module through the plurality of openings and the groove.

Technical Field

The application relates to the technical field of antennas, in particular to an on-vehicle antenna assembly and an on-vehicle antenna device.

Background

With the rapid development of wireless communication and in-vehicle devices, the requirements for the performance of in-vehicle communication devices are also increasing. Since the in-vehicle communication apparatus needs to support a communication network of multi-mode and multi-band, for example: the Sub6G frequency band (such as 3.3GHz to 4.9GHz), 5.9GHz (5.905 GHz to 5.925GHz) Vehicle-to-all (V2X) frequency band makes the number of Vehicle-mounted receiving antennas and the number of supported frequency bands included in the Vehicle-mounted communication device more and more.

The conventional vehicle-mounted communication device generally adopts a shark fin antenna structure, and is used for integrating various powerful automobile electronic functions such as Frequency Modulation (FM), Global Positioning System (GPS), Global System for Mobile Communications (GSM), and the like, and all functions of various antennas. However, the shark fin antenna is required to be arranged on the roof of a vehicle, so that the shark fin antenna cannot be arranged on the vehicle with a panoramic sunroof or a vehicle with a limited height, and therefore the shark fin antenna cannot meet the complex installation requirement of the market.

In summary, the technical staff in the art needs to solve the problem of how to provide a vehicle-mounted antenna assembly, which can effectively reduce the size and save the installation space based on the urgent needs of multiple functions, high integration and miniaturization, so as to meet the complex installation requirements of the market.

Disclosure of Invention

The embodiment of the application provides a vehicle-mounted antenna assembly and a vehicle-mounted antenna device, and can solve the problem that the use requirement of the market cannot be met due to the fact that the existing vehicle-mounted communication equipment adopts a shark fin antenna structure.

In order to solve the technical problem, the present application is implemented as follows:

the application provides an on-vehicle antenna module, it includes: the antenna comprises a substrate, at least two groups of mobile communication antenna vibrator groups, a positioning antenna module and a vehicle networking antenna module. Open slots are respectively arranged at two ends of the substrate; at least two groups of mobile communication antenna oscillator groups are respectively arranged at two ends of the substrate, each group of mobile communication antenna oscillator group comprises at least two mobile communication antenna oscillators, and at least two mobile communication antenna oscillators in each group of mobile communication antenna oscillator groups are respectively arranged at two sides of the corresponding open slot; the positioning antenna module is arranged on the substrate and is arranged between two ends of the substrate; the car networking antenna module is arranged on the substrate and beside the positioning antenna module.

The application provides a vehicle antenna device, it includes: the vehicle-mounted antenna assembly and the mounting base of the embodiment of the application. The substrate is arranged on the mounting base, and at least two groups of mobile communication antenna oscillator groups are respectively coupled with the parts of the mounting base corresponding to the positions of the base so as to adjust the resonant frequency.

In this application embodiment, through the spatial arrangement of at least two sets of mobile communication antenna oscillator groups, location antenna module and car networking antenna module, under the prerequisite that possesses locate function, car networking function and mobile communication function, realize multi-functional, high integration and the miniaturized demand of on-vehicle antenna module, effectively reduce the volume, practice thrift installation space to satisfy complicated installation demand. In addition, at least two groups of mobile communication antenna oscillator groups are respectively arranged at two ends of the substrate, and the at least two mobile communication antenna oscillators in each group of mobile communication antenna oscillator groups are isolated by adopting an air medium, so that the vehicle-mounted antenna assembly and the vehicle-mounted antenna device can solve the problem of poor isolation between mobile communication antennas in a vehicle-mounted mobile communication system. In addition, through the design of coupling of the mounting base and the at least two groups of mobile communication antenna vibrator groups, the vehicle-mounted antenna device can improve resonance parameters of the at least two groups of mobile communication antenna vibrator groups, and increase of frequency bandwidth of the at least two groups of mobile communication antenna vibrator groups is achieved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a perspective view of one embodiment of an on-board antenna assembly according to the present application;

FIG. 2 is a schematic top view of the vehicle antenna assembly of FIG. 1;

fig. 3 is a schematic circuit diagram of an embodiment of at least two sets of mobile communication antenna oscillators and a first matching circuit unit according to the present application;

FIG. 4 is a circuit diagram of an embodiment of the positioning antenna module of FIG. 1;

FIG. 5 is a schematic diagram of an embodiment of a circuit architecture of the Internet of vehicles antenna module of FIG. 1;

FIG. 6 is a schematic top view of another embodiment of an on-board antenna assembly according to the present application;

FIG. 7 is an exploded view of one embodiment of a vehicle antenna assembly according to the present application;

fig. 8 is an assembled view of the vehicle-mounted antenna apparatus of fig. 7;

fig. 9 is a schematic top view of the vehicle-mounted antenna device of fig. 8;

FIG. 10 is a cross-sectional view taken along line AA in FIG. 9;

FIG. 11 is an enlarged view of block B of FIG. 10; and

fig. 12 is a perspective view of the mounting base of fig. 7.

Detailed Description

In this specification, it should be noted that, for the terms of orientation, such as "central", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., it is to be understood that the orientation and positional relationship indicated are based on the orientation and positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, but it is not to indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be construed as limiting the specific scope of the present invention.

It will be understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, values, method steps, operations, components, and/or components, but do not preclude the presence or addition of further features, values, method steps, operations, components, and/or groups thereof.

It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may be present. In contrast, when an element is described as being "directly connected" or "directly coupled" to another element, there are no intervening elements present.

In this specification, unless specified or limited otherwise, the first feature "on" or "under" the second feature may include the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other through another feature therebetween.

Embodiments of the present invention will be described below with reference to the accompanying drawings. In the drawings, the same reference numerals indicate the same or similar components or process flows.

Referring to fig. 1 and 2, fig. 1 is a perspective view of an embodiment of an antenna assembly for a vehicle according to the present application, and fig. 2 is a top view of the antenna assembly for the vehicle of fig. 1. As shown in fig. 1 and 2, the vehicle antenna assembly 100 includes: the antenna comprises a substrate 110, at least two sets of mobile communication antenna vibrator sets (namely a mobile communication antenna vibrator set 120a and a mobile communication antenna vibrator set 120b), a positioning antenna module 130 and a vehicle networking antenna module 140. Wherein, open slots are respectively arranged at two ends of the substrate 110 (i.e. the left and right ends of the substrate 110 are respectively provided with an open slot 50a and an open slot 50 b); at least two sets of mobile communication antenna oscillator sets are respectively disposed at two ends of the substrate 110 (i.e., the mobile communication antenna oscillator set 120a and the mobile communication antenna oscillator set 120b are respectively disposed at the left and right ends of the substrate 110). In one embodiment, the mobile communication antenna oscillator set may be, but is not limited to being, printed on the substrate 110. In the present embodiment, the number of the mobile communication antenna vibrator sets may be two sets (i.e. the mobile communication antenna vibrator set 120a and the mobile communication antenna vibrator set 120b), but the present embodiment is not limited to this application and can be adjusted according to actual requirements.

Each group of mobile communication antenna oscillator group comprises at least two mobile communication antenna oscillators (namely, the mobile communication antenna oscillator group 120a comprises a mobile communication antenna oscillator 60a and a mobile communication antenna oscillator 60b, and the mobile communication antenna oscillator group 120b comprises a mobile communication antenna oscillator 60c and a mobile communication antenna oscillator 60d), and at least two mobile communication antenna oscillators in each group of mobile communication antenna oscillator group are respectively arranged at two sides of the corresponding open slot (namely, the mobile communication antenna oscillator 60a and the mobile communication antenna oscillator 60b are respectively arranged at two sides of the open slot 50a, and the mobile communication antenna oscillator 60c and the mobile communication antenna oscillator 60d are respectively arranged at two sides of the open slot 50 b); the positioning antenna module 130 is disposed on the substrate 110 and disposed between two ends of the substrate 110; the car networking antenna module 140 is disposed on the substrate 110 and beside the positioning antenna module 130.

Therefore, the vehicle antenna assembly 100 provided by the present embodiment includes at least two sets of mobile communication antenna oscillator sets, the positioning antenna module 130, and the vehicle networking antenna module 140 to form a multifunctional combined antenna structure, and the volume is effectively reduced by light-weight spatial arrangement. In addition, in order to improve the isolation between at least two sets of mobile communication antenna vibrator groups, the mobile communication antenna vibrator group 120a and the mobile communication antenna vibrator group 120b are respectively arranged at two ends of the substrate 110; in order to improve the isolation between the mobile communication antenna element 60a and the mobile communication antenna element 60b and the isolation between the mobile communication antenna element 60c and the mobile communication antenna element 60d, the mobile communication antenna element 60a and the mobile communication antenna element 60b are isolated by adopting an air medium, and the mobile communication antenna element 60c and the mobile communication antenna element 60d are isolated by adopting an air medium, so that the problem of poor isolation between mobile communication antennas in a vehicle-mounted mobile communication system is solved. In addition, by means of printing the mobile communication antenna element 60a, the mobile communication antenna element 60b, the mobile communication antenna element 60c and the mobile communication antenna element 60d on the same substrate, space utilization rate is improved, production is simplified, and the problem that errors are caused by welding of antennas, and further antenna impedance and performance are inconsistent is avoided.

In practical implementations, the substrate 110 may be, but is not limited to, a Printed Circuit Board (PCB), and the mobile communication antenna element 60a, the mobile communication antenna element 60b, the mobile communication antenna element 60c, and the mobile communication antenna element 60d may be, but is not limited to, PCB antennas.

In a practical example, the material of the substrate 110 may include, but is not limited to, ceramic material, FR-4 epoxy, polystyrene, polypropylene, polyimide, polyethylene, polyetheretherketone, polytetrafluoroethylene, or a mixture thereof.

In an actual example, the open slot 50a and the open slot 50b may be disposed on a central axis (not drawn) of a long side of the substrate 110, so that the mobile communication antenna element 60a and the mobile communication antenna element 60b are distributed in an axisymmetric manner with the central axis as a symmetry axis, and the mobile communication antenna element 60c and the mobile communication antenna element 60d are distributed in an axisymmetric manner with the central axis as a symmetry axis.

In a practical example, there are two open grooves (i.e., the open groove 50a and the open groove 50b) that extend from the edge openings of both ends of the substrate 110 in the width direction P of the parallel substrate 110 to have opening depths U each corresponding to the width W of the adjacent mobile communication antenna element in the width direction P of the parallel substrate 110. In an example, each opening depth U may be greater than or about equal to a width W of an adjacent mobile communications antenna element in a width direction P of the parallel substrate 110.

In a practical example, the mobile communication antenna oscillator group 120a and the mobile communication antenna oscillator group 120b are designed to be arranged in mirror symmetry.

In a practical example, please refer to fig. 3, which is a schematic circuit architecture diagram of an embodiment of at least two sets of mobile communication antenna oscillators and a first matching circuit unit according to the present application. As shown in fig. 3, the vehicle-mounted antenna assembly 100 may further include a first matching circuit unit 150, which connects the mobile communication antenna vibrator group 120a and the mobile communication antenna vibrator group 120b, and is configured to adjust impedances of the mobile communication antenna vibrator group 120a and the mobile communication antenna vibrator group 120 b. In an embodiment, the first matching circuit unit 150 may include four sub-matching circuits (i.e., a sub-matching circuit 150a, a sub-matching circuit 150b, a sub-matching circuit 150c, and a sub-matching circuit 150d) for matching the mobile communication antenna element 60a, the mobile communication antenna element 60b, the mobile communication antenna element 60c, and the mobile communication antenna element 60d, respectively, and thus, maximum power transmission of radio signals in the mobile communication system is achieved by the configuration of the first matching circuit unit 150. The circuit design and the arrangement position of the first matching circuit unit 150 can be adjusted according to actual requirements. In one embodiment, the first matching circuit unit 150 is disposed on the substrate 110.

In a practical example, the mobile communication antenna element 60a, the mobile communication antenna element 60b, the mobile communication antenna element 60c and the mobile communication antenna element 60d may be, but are not limited to, fifth generation mobile communication technology (5G) antenna elements, and each of the mobile communication antenna element groups is a 5G mobile communication antenna element group. In an embodiment, the 5G antenna element may be, but is not limited to, a Multiple Input Multiple Output (MIMO) antenna element; the antenna frequency bands of the mobile communication antenna element 60a, the mobile communication antenna element 60b, the mobile communication antenna element 60c and the mobile communication antenna element 60d may be, but are not limited to, the frequency band of Sub6G (e.g., 3.3GHz to 3.6GHz and 4.8GHz to 5.0GHz), and may be all downward compatible with the frequency band of 2G/3G/4G (e.g., 690MHz to 960MHz, 1.71GHz to 2.17GHz and 2.3GHz to 2.69 GHz).

In an actual embodiment, please refer to fig. 4, which is a schematic circuit architecture diagram of an embodiment of the positioning antenna module of fig. 1. As shown in fig. 4, the positioning antenna module 130 may include: the positioning antenna element 132, the amplifying circuit unit 134 and the third matching circuit unit 136, wherein the positioning antenna element 132 is connected with the amplifying circuit unit 134, and the amplifying circuit unit 134 is connected with the third matching circuit unit 136. The positioning antenna element 132 is used for receiving satellite positioning signals; the amplifying circuit unit 134 is configured to receive and amplify the satellite positioning signal to output a position signal; the third matching circuit unit 136 is used for impedance matching. The positioning antenna module 130 is configured to output a position signal to a control system of a vehicle on which the vehicle antenna assembly 100 is disposed, so that the control system analyzes and processes the output position signal to obtain a position coordinate of the vehicle.

In a practical example, the positioning antenna element 132 may be, but is not limited to, a ceramic antenna.

In a practical example, the Positioning antenna module 130 may be, but is not limited to, a GPS antenna, a BeiDou Navigation Satellite System (BeiDou) antenna, a Galileo Positioning System (Galileo) antenna, or a Global Navigation Satellite System (Glonass) antenna; the frequency bands of the GPS antenna include L1(1575.42MHz) and L2(1227.60MHz) frequency bands, the frequency bands of the Galileo antenna include E1(1589.74MHz), E2(1561.1MHz), E5a (1176.45MHz), E5B (1207.14MHz) or E6(1278.75MHz) frequency bands, the frequency bands of the Beidou antenna include B1I (1561.098MHz) and B2I (1207.140MHz) frequency bands, and the frequency bands of the Glonass antenna include 1602+0.5625a (MHz) or 1246+0.4375a (MHz) (a is a Glonass satellite number).

In one embodiment, the positioning antenna module 130 may be disposed on a central axis (not drawn) of the long side of the substrate 110.

In an actual embodiment, please refer to fig. 5, which is a schematic circuit architecture diagram of an embodiment of the car networking antenna module of fig. 1. As shown in fig. 5, the car networking antenna module 140 may include a car networking antenna element 142 and a second matching circuit unit 144, and the car networking antenna element 142 is connected to the second matching circuit unit 144. The vehicle networking antenna element 142 is used for receiving signals; the second matching circuit unit 144 is used to adjust the impedance of the vehicle networking antenna element 142. Through the configuration of the second matching circuit unit 144, maximum power transmission of radio signals in the car networking communication system is achieved. The circuit design and the arrangement position of the second matching circuit unit 144 can be adjusted according to actual requirements. In one embodiment, the second matching circuit unit 144 is disposed on the substrate 110.

In a practical example, referring to fig. 2, the car networking antenna module 140 may include a car networking antenna element 142, and a distance D between a position of the car networking antenna element 142 disposed on the substrate 110 and an edge of the substrate 110 is greater than 20 mm. By designing the distance D, the safety of manufacturing can be improved. In addition, when the vehicle antenna assembly 100 is disposed within the housing, the housing can be prevented from affecting the shift in the resonant frequency of the vehicle networking antenna element 142 by the design of the distance D.

In one embodiment, please refer to fig. 6, which is a schematic top view of another embodiment of an antenna assembly for a vehicle according to the present application. As shown in fig. 6, the car networking antenna module 140 may include a plurality of car networking antenna elements 142, and the car networking antenna elements 142 are respectively disposed on different sides of the positioning antenna module 130 to adjust the directivity of the car networking antenna module 140.

In one practical example, referring to fig. 6, the car networking antenna module 140 may include two car networking antenna elements 142, and the positioning antenna module 130 is disposed between the two car networking antenna elements 142. By configuring the positioning antenna module 130 between the two vehicle networking antenna elements 142, the isolation between the two vehicle networking antenna elements 142 can be improved. In one embodiment, the Vehicle networking antenna module 140 may be, but is not limited to, a Vehicle to all (V2X) antenna module, and the Vehicle networking antenna element 142 may be, but is not limited to, a V2X antenna element suitable for the V2X band.

Referring to fig. 7 to 10, fig. 7 is a schematic perspective view of an embodiment of a vehicle antenna device according to the present application, fig. 8 is an assembly diagram of the vehicle antenna device of fig. 7, fig. 9 is a schematic top view of the vehicle antenna device of fig. 8, and fig. 10 is a cross-sectional view of fig. 9 along line AA. As shown in fig. 7 to 10, the vehicle-mounted antenna apparatus 200 includes a vehicle-mounted antenna assembly 100 and a mounting base 210, the substrate 110 is disposed on the mounting base 210, and the mobile communication antenna vibrator group 120a and the mobile communication antenna vibrator group 120b are respectively coupled with a portion of the mounting base 210 corresponding to a position thereof, so as to adjust resonant frequencies of the mobile communication antenna vibrator group 120a and the mobile communication antenna vibrator group 120 b. By the design that the mobile communication antenna vibrator group 120a and the mobile communication antenna vibrator group 120b are coupled with the partial mounting base 210 corresponding to the positions respectively, new resonance points can be added to the mobile communication antenna vibrator group 120a and the mobile communication antenna vibrator group 120b, and the antenna frequency bandwidth of the vehicle-mounted antenna device 200 in the mobile communication system is also increased; in addition, due to the radiation effect, the bandwidth at the frequency multiplication part is also increased, so that the antenna resonance parameter of the vehicle-mounted antenna device 200 in the mobile communication system is improved.

In one embodiment, the substrate 110 is fixed on the mounting base 210 by locking. In another practical example, the substrate 110 is fixed on the mounting base 210 by means of adhesion. It is noted that, in order to avoid the complexity of the drawing of fig. 7, the elements (e.g., screws or adhesives) for disposing the substrate 110 on the mounting base 210 are not drawn.

In one practical example, the dielectric constant of the material of the mounting base 210 is 2.2 to 2.6.

In a practical example, the material of the mounting base 210 may be, but is not limited to, polypropylene (PP), Polyethylene (PE), polyamide, or a mixture thereof.

In an actual example, the vehicle-mounted antenna device 200 may further include a housing 220 for assembling with the mounting base 210 to form an inner space of the vehicle-mounted antenna device 200 for the vehicle-mounted antenna assembly 100 to be disposed therein. The material of the housing 220 may include, but is not limited to, Polycarbonate (Polycarbonate) and polyacrylonitrile (ABS). In one example, the housing 220 and the mounting base 210 may be assembled by a snap-fit manner, so as to facilitate subsequent maintenance of the vehicle-mounted antenna apparatus 200; in another example, the housing 220 and the mounting base 210 may be assembled by adhesion to prevent moisture from entering the inner space; the assembly of the actual housing 220 and the mounting base 210 can be adjusted according to actual requirements.

In a practical example, the mounting base 210 includes at least two platforms (i.e., the platform 212a and the platform 212b) and a groove 214, the at least two platforms are located at two sides of the groove 214 (i.e., the platform 212a and the platform 212b are located at two sides of the groove 214), the at least two platforms are close to the substrate 110 relative to the groove 214, at least two sets of mobile communication antenna vibrators are arranged corresponding to the at least two platforms (i.e., the mobile communication antenna vibrator set 120a is arranged corresponding to the platform 212a, and the mobile communication antenna vibrator set 120b is arranged corresponding to the platform 212b), each set of mobile communication antenna vibrators is respectively coupled with the corresponding platform (i.e., the mobile communication antenna vibrator set 120a is coupled with the platform 212a, and the mobile communication antenna vibrator set 120b is coupled with the platform 212b), the distance between each set of mobile communication antenna vibrators is respectively coupled with the corresponding platform (i.e., the distance between the mobile communication antenna vibrator set 120a and the platform 212a is less than 5 mm, the distance between the mobile communication antenna vibrator group 120B and the stage 212B is less than 5 mm), as shown in fig. 11, fig. 11 is an enlarged schematic view of block B of fig. 10. In the present embodiment, the number of the stages may be two (i.e., the stage 212a and the stage 212b), but the present embodiment is not limited thereto, and may be adjusted according to actual requirements. It should be noted that the mobile communication antenna vibrator sets and the platforms correspond to each other in a one-to-one manner, but the number of the mobile communication antenna vibrator sets and the number of the platforms are not necessarily the same.

In an actual example, referring to fig. 6 and 7, each opening depth U is greater than a width F of the platform corresponding to the adjacent mobile communication antenna element in the width direction P of the parallel substrate 110.

In an actual example, please refer to fig. 7 and 12, and fig. 12 is a perspective view of the mounting base of fig. 7. As shown in fig. 7 and 12, the opening of the groove 214 faces the substrate 110, the side wall of the groove 214 is provided with a plurality of holes 80, and the vehicle-mounted antenna device 200 further includes a plurality of transmission lines (not shown) connected to the output ports of the mobile communication antenna vibrator group 120a, the mobile communication antenna vibrator group 120b, the positioning antenna module 130, and the vehicle network antenna module 140 through the plurality of holes 80 and the groove 214. Wherein the transmission line may be, but is not limited to, a coaxial cable. Note that the plurality of transmission lines are not drawn to avoid overcomplicating the drawing of fig. 7.

In a practical example, since the mobile communication antenna oscillator group 120a includes the mobile communication antenna oscillator 60a and the mobile communication antenna oscillator 60b, the mobile communication antenna oscillator group 120b includes the mobile communication antenna oscillator 60c and the mobile communication antenna oscillator 60d, the positioning antenna module 130 includes the positioning antenna oscillator 132, and the vehicle networking antenna module 140 includes the vehicle networking antenna oscillator 142, the number of the openings 80 may be 6, and the number of the transmission lines may be 6 (the 6 transmission lines are respectively connected to the output ports corresponding to the mobile communication antenna oscillator 60a, the mobile communication antenna oscillator 60b, the mobile communication antenna oscillator 60c, the mobile communication antenna oscillator 60d, the positioning antenna oscillator 132, and the vehicle networking antenna oscillator 142).

In one embodiment, the recess 214 is provided with a plurality of supporting portions 90 for locking with the substrate 110, and the substrate 110 is provided with a plurality of through holes 92; when the substrate 110 is mounted on the mounting base 210, the supporting portions 90 and the through holes 92 correspond to each other one-to-one, and the substrate 110 is fixed to the mounting base 210 by a locking member (e.g., a screw).

In an actual embodiment, referring to fig. 9 and 12, the mounting base 210 may further include a plurality of fixing portions 216 for fixing the vehicle-mounted antenna apparatus 200 on the vehicle. The vehicle-mounted antenna apparatus 200 may be fastened to the vehicle after a plurality of fastening members (e.g., screws) are inserted through the fastening holes 30 of the fastening portions 216.

To sum up, in this application embodiment, through the spatial arrangement of two sets of mobile communication antenna oscillator groups, location antenna module and car networking antenna module, under the prerequisite that possesses locate function, car networking function and mobile communication function, realize multi-functional, high integration and the miniaturized demand of on-vehicle antenna module, effectively reduce the volume, practice thrift installation space to satisfy complicated installation demand. In addition, two groups of mobile communication antenna oscillator groups are respectively printed at two ends of the substrate, and the two adjacent mobile communication antenna oscillators in each group of mobile communication antenna oscillator groups adopt the design of air medium isolation, so that the vehicle-mounted antenna assembly and the vehicle-mounted antenna device can solve the problem of poor isolation between mobile communication antennas in a vehicle-mounted mobile communication system. In addition, through the design of coupling of the mounting base and the two groups of mobile communication antenna vibrator groups, the vehicle-mounted antenna device can improve resonance parameters of the two groups of mobile communication antenna vibrator groups, and increase of frequency bandwidths of the two groups of mobile communication antenna vibrator groups is achieved.

Although the above-described elements are included in the drawings of the present application, it is not excluded that more additional elements may be used to achieve better technical results without departing from the spirit of the invention.

While the invention has been described using the above embodiments, it should be noted that these descriptions are not intended to limit the invention. Rather, this invention encompasses modifications and similar arrangements as would be apparent to one skilled in the art. The scope of the claims is, therefore, to be construed in the broadest manner to include all such obvious modifications and similar arrangements.