A vehicle-mounted terminal and a vehicle

Abstract

The embodiment of the application relates to the Internet of Vehicles technical field, and discloses especially a vehicle-mounted terminal and a vehicle, the vehicle-mounted terminal comprises a shell, a circuit board and an antenna assembly, the circuit board is arranged in the shell, the circuit board is provided with a first surface, the antenna assembly is electrically connected with the circuit board, the antenna assembly is arranged at the edge of the first surface, and the antenna assembly is perpendicular to the first surface. In the above manner, the antenna assembly is integrated in the vehicle-mounted terminal, the cable connection length is effectively reduced, transmission loss and maintenance cost are reduced, and communication quality is improved.

Description

Technical Field

[0001] This application relates to the field of vehicle networking technology, and in particular to an in-vehicle terminal and a vehicle. Background Technology

[0002] With the rapid development of vehicle-to-everything (V2X) technology, the intelligent in-vehicle terminal T-BOX (Telematics BOX), as a core component for data interaction between vehicles and the outside world, is becoming increasingly important. The T-BOX establishes a connection with the external communication network through an antenna, enabling information transmission between the vehicle and cloud servers, other vehicles, and road infrastructure. This allows for functions such as remote control, positioning, status monitoring, and data sharing. The T-BOX and antenna are typically designed separately; the antenna is located in another part of the vehicle, such as inside a shark fin-shaped box on the roof, while the T-BOX is connected to the antenna via cables and connectors.

[0003] In implementing the embodiments of this application, the inventors discovered that in the T-BOX and antenna separate design, cable connection not only increases the complexity of in-vehicle wiring, but also long-distance cables suffer from high signal loss and are easily interfered with, resulting in reduced antenna efficiency and affecting communication quality. Utility Model Content

[0004] In view of the above problems, embodiments of this application provide an in-vehicle terminal and a vehicle, which overcomes or at least partially solves the above problems.

[0005] To solve the above-mentioned technical problems, one technical solution adopted in this application is: to provide a vehicle terminal, including a housing, a circuit board and an antenna assembly, wherein the circuit board is disposed inside the housing, the circuit board is provided with a first surface, the antenna assembly is electrically connected to the circuit board, the antenna assembly is disposed at the edge of the first surface and the antenna assembly is perpendicular to the first surface.

[0006] In some embodiments, the antenna assembly includes a 5G antenna, a MIMO antenna, and a WIFI antenna, wherein the 5G antenna, the MIMO antenna, and the WIFI antenna are sequentially and spaced apart at the edge of the first surface.

[0007] In some embodiments, the first surface is provided with a first edge and a second edge, the first edge and the second edge are disposed opposite to each other along a first direction, the number of 5G antennas, the number of MIMO antennas and the number of WIFI antennas are all two, along a second direction, one 5G antenna, one MIMO antenna and one WIFI antenna are sequentially disposed on the first edge, and another WIFI antenna, another MIMO antenna and another 5G antenna are sequentially disposed on the second edge, wherein the second direction is perpendicular to the first direction.

[0008] In some embodiments, along the first direction, one of the 5G antennas is arranged opposite to another of the WIFI antennas, one of the MIMO antennas is arranged opposite to another of the MIMO antennas, and one of the WIFI antennas is arranged opposite to another of the 5G antennas.

[0009] In some embodiments, each of the 5G antennas is electrically connected to the circuit board via a single feed point, and / or each of the MIMO antennas is electrically connected to the circuit board via a single feed point, and / or each of the WIFI antennas is electrically connected to the circuit board via a single feed point.

[0010] In some embodiments, the 5G antenna includes a first substrate and a first radiating layer. The first substrate is vertically disposed on the edge of the first surface, and the first radiating layer is disposed on the first substrate. The first radiating layer includes a first radiating stub, a second radiating stub, and a third radiating stub connected in sequence. The first radiating stub, the second radiating stub, and the third radiating stub correspond to different frequency bands.

[0011] In some embodiments, the MIMO antenna includes a second substrate and a second radiating layer. The second substrate is disposed perpendicularly on the edge of the first surface, and the second radiating layer is disposed on the second substrate. The second radiating layer includes a rectangular patch and an arc-shaped patch. Along the vertical direction of the first surface, the arc-shaped patch is disposed on one side of the rectangular patch.

[0012] In some embodiments, the structure of the WIFI antenna includes a third substrate and a third radiating layer. The third substrate is vertically disposed at the edge of the first surface, and the third radiating layer is disposed on the third substrate. The third radiating layer includes a first symmetrical radiating branch and a second symmetrical radiating branch disposed sequentially. The first symmetrical radiating branch and the second symmetrical radiating branch are both symmetrically disposed about an axis of symmetry, which is parallel to the vertical direction of the first surface.

[0013] In some embodiments, the first surface is provided with a conductive region and an isolation region, the conductive region being electrically connected to the antenna assembly, and the isolation region being disposed at the edge of the first surface and surrounding the conductive region.

[0014] To solve the above-mentioned technical problems, another technical solution adopted in this application is to provide a vehicle including the above-mentioned vehicle terminal.

[0015] The beneficial effects of this application embodiment are as follows: Unlike the prior art, this application embodiment provides a vehicle-mounted terminal and a vehicle. The vehicle-mounted terminal includes a housing, a circuit board, and an antenna assembly. The circuit board is disposed within the housing and has a first surface. The antenna assembly is electrically connected to the circuit board and is disposed at the edge of the first surface, perpendicular to the first surface. By integrating the antenna assembly into the vehicle-mounted terminal in this way, the cable connection length is effectively reduced, transmission loss and maintenance costs are lowered, and communication quality is improved. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the drawings without creative effort.

[0017] Figure 1 This is a perspective view of the antenna assembly and circuit board of the vehicle terminal provided in the embodiments of this application;

[0018] Figure 2 This is a three-dimensional enlarged view of the 5G antenna provided in the embodiments of this application;

[0019] Figure 3 yes Figure 2 Parameter labeling diagram;

[0020] Figure 4 This is a three-dimensional enlarged view of the MIMO antenna provided in the embodiments of this application;

[0021] Figure 5 yes Figure 4 Parameter labeling diagram;

[0022] Figure 6 This is a three-dimensional enlarged view of the WIFI antenna provided in the embodiments of this application;

[0023] Figure 7 yes Figure 6 Parameter labeling diagram;

[0024] Figure 8This is a simulation result diagram of the S11 parameters of the 5G antenna provided in the embodiments of this application;

[0025] Figure 9 This is a simulation result diagram of the S11 parameters of the MIMO antenna provided in the embodiments of this application;

[0026] Figure 10 This is a simulation result diagram of the S11 parameters of the WIFI antenna provided in the embodiments of this application;

[0027] Figure 11 This is a simulation result diagram of the efficiency curve of the 5G antenna provided in the embodiments of this application;

[0028] Figure 12 This is a simulation result diagram of the efficiency curve of the MIMO antenna provided in the embodiments of this application;

[0029] Figure 13 This is a simulation result diagram of the efficiency curve of the WIFI antenna provided in the embodiments of this application;

[0030] Figure 14 This is a simulation result diagram of the isolation curve of the antenna assembly provided in the embodiments of this application. Detailed Implementation

[0031] To facilitate understanding of this application, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected" to another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this specification are for illustrative purposes only.

[0032] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of this application. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0033] Please see Figure 1 The vehicle terminal 10000 includes a housing (not shown), a circuit board 1, and an antenna assembly 2. The circuit board 1 is disposed inside the housing, and the antenna assembly 2 is electrically connected to the circuit board 1 and disposed on the circuit board 1, thereby integrating the antenna assembly 2 into the vehicle terminal 10000.

[0034] In some embodiments, the vehicle terminal 10000 is a vehicle T-BOX.

[0035] In some embodiments, the antenna assembly 2 is disposed within the housing to provide protection for the antenna assembly 2 and reduce the risk of impact, erosion and interference from foreign objects.

[0036] For circuit board 1 mentioned above, please refer to Figure 1 The circuit board 1 has a first surface 11 and a second surface 12, which are arranged opposite to each other along a third direction z. The third direction z refers to the direction perpendicular to the first surface 11, that is, the thickness direction of the circuit board 1.

[0037] In some embodiments, the first surface 11 includes a conductive region 111 and an isolation region 112. The conductive region 111 is electrically connected to the antenna assembly 2, and the isolation region 112 is disposed at the edge of the first surface 11, surrounding the conductive region 111. The isolation region 112 increases the radiation space of the antenna assembly 2 disposed at the edge of the circuit board 1, which is beneficial to improving signal transmission quality. In some examples, the isolation region 112 is a non-copper-plated area, and the conductive region 111 is provided with a feed network, which is electrically connected to the antenna assembly 2.

[0038] In some embodiments, the first surface 11 is provided with a first edge 113 and a second edge 114, the first edge 113 and the second edge 114 being disposed opposite to each other along a first direction x. In some examples, the first surface 11 is rectangular.

[0039] The antenna assembly 2 is disposed at the edge of the first surface 11 and is perpendicular to the first surface 11. The perpendicular arrangement is beneficial to increase the antenna radiation coverage range and enhance the antenna performance.

[0040] In some embodiments, please refer to Figure 1 The antenna assembly 2 includes a 5G antenna 21, a MIMO antenna 22, and a WIFI antenna 23, which are sequentially and spaced apart at the edge of the first surface 11. The 5G antenna 21, MIMO antenna 22, and WIFI antenna 23 are all integrated into the vehicle terminal 10000, which helps improve the communication capabilities and practicality of the vehicle terminal 10000 and meets the communication needs of the vehicle terminal 10000 in different application scenarios.

[0041] In some embodiments, the antenna assembly 2 is fixedly connected to the circuit board 1 by soldering. See also [examples omitted]. Figure 1 The 5G antenna 21, MIMO antenna 22 and WIFI antenna 23 are respectively soldered to the circuit board 1 through soldering point 24.

[0042] In some embodiments, the number of 5G antennas 21, MIMO antennas 22, and WIFI antennas 23 are all two. Along the second direction y, one 5G antenna 21, one MIMO antenna 22, and one WIFI antenna 23 are sequentially disposed on the first edge 113, and another WIFI antenna 23, another MIMO antenna 22, and another 5G antenna 21 are sequentially disposed on the second edge 114. The second direction y is perpendicular to the first direction x. This bidirectional antenna arrangement not only improves the space utilization of the circuit board 1 but also reduces signal dead zones, achieving more uniform signal coverage.

[0043] In some embodiments, the first direction x refers to the width direction of the circuit board 1, and the second direction y refers to the length direction of the circuit board 1.

[0044] In some embodiments, along the first direction x, one 5G antenna 21 is positioned opposite to another WIFI antenna 23, one MIMO antenna 22 is positioned opposite to another MIMO antenna 22, and one WIFI antenna 23 is positioned opposite to another 5G antenna 21. That is, the two MIMO antennas 22 are positioned opposite each other, the two 5G antennas 21 are positioned diagonally, and the two WIFI antennas 23 are positioned diagonally. Diagonally positioning antennas of the same type helps improve antenna isolation and reduce interference between antennas.

[0045] In some embodiments, each 5G antenna 21 is electrically connected to the circuit board 1 via a single feed point. In some examples, the 5G antenna 21 is connected to the conductive region 111 via a first feed point 213.

[0046] In some embodiments, each MIMO antenna 22 is electrically connected to the circuit board 1 via a single feed point. In some examples, the MIMO antenna 22 is electrically connected to the conductive region 111 via a second feed point 223.

[0047] In some embodiments, each WIFI antenna 23 is electrically connected to the circuit board 1 via a single feed point. In some examples, the WIFI antenna 23 is connected to the conductive area 111 via a third feed point 233.

[0048] The single-feed antenna setup has a simple structure, which helps improve the reliability and maintainability of the vehicle-mounted terminal 10000.

[0049] In some embodiments, please refer to Figure 2, the 5G antenna 21 includes a first substrate 211 and a first radiation layer 212. The first substrate 211 is vertically disposed at the edge of the first surface 11, and the first radiation layer 212 is disposed on the first substrate 211. The first radiation layer 212 includes a first radiation branch 2121, a second radiation branch 2122, and a third radiation branch 2123 that are sequentially connected. The first radiation branch 2121, the second radiation branch 2122, and the third radiation branch 2123 respectively correspond to different frequency bands, thereby realizing the multi-band characteristic of the 5G antenna 21. In some examples, the first radiation branch 2121 corresponds to the frequency band of 1400 - 2700 MHz, the second radiation branch 2122 corresponds to the frequency band of 690 - 960 MHz, and the third radiation branch 2123 corresponds to the frequency band of 3200 - 5000 MHz.

[0050] In some embodiments, the first radiation branch 2121 is a rectangular sheet, and the rectangular sheet is electrically connected to the circuit board 1. The second radiation branch 2122 is bent in a "C" shape, and the third radiation branch 2123 is bent in a mirror "Z" shape. The second radiation branch 2122 includes a first horizontal branch 21221, a second horizontal branch 21222, and a first vertical branch 21223. The first horizontal branch 21221 and the second horizontal branch 21222 are parallel to the second direction y, and the first vertical branch 21223 is parallel to the third direction z. One end of the first horizontal branch 21221 is connected to the rectangular sheet, and both ends of the first vertical branch 21223 are respectively connected to the other end of the first horizontal branch 21221 and one end of the second horizontal branch 21222. The other end of the second horizontal branch 21222 is connected to the third radiation branch 2123. The third radiation branch 2123 includes a third horizontal branch 21231, a fourth horizontal branch 21232, and a second vertical branch 21233. The third horizontal branch 21231 and the fourth horizontal branch 21232 are parallel to the second direction y, and the second vertical branch 21233 is parallel to the third direction z. One end of the third horizontal branch 21231 is connected to the other end of the second horizontal branch 21222 and one end of the second vertical branch 21233. The other end of the second vertical branch 21233 is connected to one end of the fourth horizontal branch 21232. The third horizontal branch 21231 and the fourth horizontal branch 21232 are respectively located on both sides of the second horizontal branch 21222 along the second direction y.

[0051] In some embodiments, please refer to Figure 4The MIMO antenna 22 includes a second substrate 221 and a second radiating layer 222. The second substrate 221 is perpendicularly disposed on the edge of the first surface 11, and the second radiating layer 222 is disposed on the second substrate 221. The second radiating layer 222 includes a rectangular patch 2221 and an arc-shaped patch 2222. Along a third direction z, the arc-shaped patch 2222 is disposed on one side of the rectangular patch 2221. The rectangular patch 2221 is disposed at the end of the second substrate 221 away from the first surface 11. The straight edge of the arc-shaped patch 2222 is connected to the rectangular patch 2221. The length of the rectangular patch 2221 along the second direction y and the length of the straight edge of the arc-shaped patch 2222 are equal to the length of the second substrate 221 along the second direction y. The large coverage area of ​​the rectangular patch 2221 and the arc-shaped patch 2222 on the second substrate 221 is beneficial for increasing the antenna bandwidth and achieving broadband characteristics. In some examples, the MIMO antenna 22 corresponds to the 1400~6000MHz frequency band.

[0052] In some embodiments, the rectangular patch 2221 and the arc-shaped patch 2222 are an integrated structure.

[0053] In some embodiments, please refer to Figure 6 The WIFI antenna 23 includes a third substrate 231 and a third radiating layer 232. The third substrate 231 is vertically disposed on the edge of the first surface 11, and the third radiating layer 232 is disposed on the third substrate 231. The third radiating layer 232 includes a first symmetrical radiating branch 2321 and a second symmetrical radiating branch 2322 arranged sequentially. Both the first symmetrical radiating branch 2321 and the second symmetrical radiating branch 2322 are symmetrically arranged about an axis of symmetry, which is parallel to the vertical direction of the first surface 11. The first symmetrical radiating branch 2321 and the second symmetrical radiating branch 2322 correspond to different frequency bands. In some examples, the first symmetrical radiating branch 2321 corresponds to the 5120~7140MHz frequency band, and the second symmetrical radiating branch 2322 corresponds to the 2400~2500MHz frequency band.

[0054] In some embodiments, a first symmetrical radial branch 2321 is disposed at one end of the third substrate 231 near the first surface 11. The first symmetrical radial branch 2321 is approximately "T"-shaped and includes a third vertical branch 23211, a fourth vertical branch 23212, and a fifth horizontal branch 23213. The fifth horizontal branch 23213 is parallel to the second direction y, and the third vertical branch 23211 and the fourth vertical branch 23212 are parallel to the third direction z. One end of the third vertical branch 23211 is electrically connected to the circuit board 1, and the other end of the third vertical branch 23211 is connected to the middle of the fifth horizontal branch 23213. The fourth vertical branch 23212 is disposed at both ends of the fifth horizontal branch 23213. The first symmetrical radial branch 2321 is symmetrical about the centerline of the third vertical branch 23211.

[0055] In some embodiments, a second symmetrical radial branch 2322 is disposed at the end of the third substrate 231 away from the first surface 11. The second symmetrical radial branch 2322 is approximately "T"-shaped and includes a fifth vertical branch 23221, a sixth vertical branch 23222, and a sixth horizontal branch 23223. The sixth horizontal branch 23223 is parallel to the second direction y, and the fifth vertical branch 23221 and the sixth vertical branch 23222 are parallel to the third direction z. The two ends of the fifth vertical branch 23221 are respectively connected to the middle of the fifth horizontal branch 23213 and the middle of the sixth horizontal branch 23223. The sixth vertical branch 23222 is disposed at both ends of the sixth horizontal branch 23223. The second symmetrical radial branch 2322 is symmetrical about the centerline of the fifth vertical branch 23221.

[0056] In some embodiments, the first symmetrical radial branch 2321 and the second symmetrical radial branch 2322 have the same axis of symmetry, and the centerline of the third vertical branch 23211 and the centerline of the fifth vertical branch 23221 are located on the same straight line.

[0057] In some embodiments, the length-to-width ratio of circuit board 1 is equal to one-quarter wavelength of the center frequency of any of the aforementioned antenna bands. This helps the antenna achieve better impedance matching in a specific frequency band, reduces signal reflection, and improves the antenna's radiation efficiency. In some examples, the length-to-width ratio of circuit board 1 is equal to one-quarter wavelength of the center frequency of MIMO antenna 22.

[0058] In some embodiments, the sum of the thickness of the circuit board 1 and the height of the antenna assembly 2 along the third direction z is less than or equal to 17 mm, which is beneficial for the miniaturization of the vehicle terminal 10000.

[0059] For ease of understanding, this application also provides a simulation embodiment of the above-described vehicle terminal 10000, wherein the dielectric constant of the first substrate 211, the second substrate 221, and the third substrate 231 is all 4.3, and the dielectric loss is all 0.025. The dimensions of the first substrate 211 are 32.3mm * 15mm * 1.25mm, the dimensions of the second substrate 221 are 32.3mm * 15mm * 1.25mm, and the dimensions of the third substrate 231 are 20.3mm * 13mm * 1.25mm. The dimensions of the circuit board 1 are 194.8mm * 98.5mm * 2mm, and the width of the isolation area 112 is 8mm. The spacing between the 5G antenna 21 and the MIMO antenna 22 is 58.3mm, and the spacing between the MIMO antenna 22 and the WIFI antenna 23 is 45.8mm.

[0060] Please see Figure 2 and Figure 3In the 5G antenna 21, a1=10mm, a2=5.2mm, a3=27mm, a4=2mm, a5=10mm, a6=1mm, a7=23.6mm, a8=1mm, a9=6mm, a10=5mm, a11=2mm, a12=14mm, and a13=1mm. Wherein, a1 and a2 are the length and width of the first radial branch 2121, a3 and a4 are the length and width of the first horizontal branch 21221, a5 and a6 are the length and width of the first vertical branch 21223, a7 is the length of the second horizontal branch 21222, a8 is the length of the second horizontal branch 21222 and the third horizontal branch 21231, a9 is the length of the third horizontal branch 21231, a10 and a11 are the length and width of the second vertical branch 21233, and a12 and a13 are the length and width of the fourth horizontal branch 21232.

[0061] Please see Figure 4 and Figure 5 In the MIMO antenna 22, b1=32.3mm, b2=6.3mm, and b3=7.2mm. b1 is the length of the rectangular patch 2221 and the length of the arc patch 2222, b2 is the width of the rectangular patch 2221, and b3 is the maximum width of the arc patch 2222.

[0062] Please see Figure 6 and Figure 7 In the WIFI antenna 23, c1=4mm, c2=2mm, c3=12mm, c4=2mm, c5=2mm, c6=1mm, c7=3mm, c8=16.4mm, c9=1.5mm, and c10=1.2mm. c1 is the length of the third vertical segment 23211, c2 is the width of the third vertical segment 23211 and the width of the fifth vertical segment 23221, c3 is the length of the fifth horizontal segment 23213, c4 is the width of the fifth horizontal segment 23213 and the width of the sixth horizontal segment 23223. c5 and c6 are the length and width of the fourth vertical segment 23212, respectively. c7 is the length of the fifth vertical segment 23221, c8 is the length of the sixth horizontal segment 23223, and c9 and c10 are the length and width of the sixth vertical segment 23222, respectively.

[0063] Please see Figures 8 to 10 , Figure 8 The above simulation example shows the S11 parameter results for the two 5G antennas 21. Figure 8 The curve “S1,1” in the figure represents the S11 parameter curve of a 5G antenna. Figure 8 The curve “S2,2” in the middle is the S11 parameter curve of another 5G antenna. Figure 9 The above simulation example shows the S11 parameter results for the two MIMO antennas 22. Figure 9 The curve “S3,3” in the figure represents the S11 parameter curve of a MIMO antenna. Figure 9 The curve “S4,4” in the middle is the S11 parameter curve of another MIMO antenna. Figure 10 The above simulation example shows the S11 parameter results for the two WIFI antennas 23. Figure 10 The curve "S5,5" in the figure represents the S11 parameter curve of a Wi-Fi antenna. Figure 10 The curve “S6,6” in the middle is the S11 parameter curve of another WIFI antenna.

[0064] As shown in the figure, the 5G antenna 21, MIMO antenna 22 and WIFI antenna 23 in this embodiment all have good matching efficiency.

[0065] Please see Figures 11 to 13 , Figure 11 The above simulation example shows the efficiency curves of the two 5G antennas 21. Figure 11 The “Tot.Efficiency” curve[1] is the efficiency curve of a 5G antenna. Figure 11 The “Tot.Efficiency[2]” curve is the efficiency curve of another 5G antenna. Figure 12 The above simulation example shows the efficiency curves of the two MIMO antennas 22. Figure 12 The “Tot.Efficiency[3]” curve is the efficiency curve of a MIMO antenna. Figure 12 The “Tot.Efficiency[4]” curve is the efficiency curve of another MIMO antenna. Figure 13 The above simulation embodiment shows the efficiency curves of the two WIFI antennas 23. Figure 13 The “Tot.Efficiency[5]” curve is the efficiency curve of a WIFI antenna. Figure 13 The “Tot.Efficiency[6]” curve is the efficiency curve of another WIFI antenna.

[0066] The average efficiency of each antenna in the corresponding frequency band is shown in the following tables: Table 1 shows the average efficiency of the two 5G antennas 21 in different frequency bands, Table 2 shows the average efficiency of the two MIMO antennas 22 in different frequency bands, and Table 3 shows the average efficiency of the two WIFI antennas 23 in different frequency bands. It can be seen that the 5G antenna 21, MIMO antenna 22, and WIFI antenna 23 in this embodiment all exhibit good efficiency characteristics.

[0067]

[0068] Table 1

[0069]

[0070] Table 2

[0071]

[0072] Table 3

[0073] Please see Figure 14 , Figure 14 These are the isolation curves for each antenna in the above simulation embodiment. Figure 14 In the diagram, curve "S2,1" represents the isolation between two 5G antennas, curve "S3,2" represents the isolation between one MIMO antenna and another 5G antenna, curve "S4,1" represents the isolation between another MIMO antenna and one 5G antenna, curve "S,3" represents the isolation between two MIMO antennas, curve "S5,1" represents the isolation between one Wi-Fi antenna and one 5G antenna, curve "S5,3" represents the isolation between one Wi-Fi antenna and one MIMO antenna, and curve "S6,4" represents the isolation between another Wi-Fi antenna and another MIMO antenna.

[0074] As can be seen from the figure, the 5G antenna 21, MIMO antenna 22 and WIFI antenna 23 in this embodiment have good isolation.

[0075] In this embodiment, the vehicle-mounted terminal 10000 includes a housing, a circuit board 1, and an antenna assembly 2. The circuit board 1 is disposed within the housing and has a first surface 11. The antenna assembly 2 is perpendicularly disposed on the edge of the first surface 11. Integrating the antenna assembly 2 into the vehicle-mounted terminal 10000 helps reduce cable length, transmission loss, and production and maintenance costs. The perpendicular placement of the antenna on the circuit board 1 enhances radiation performance, thereby improving signal transmission quality.

[0076] This application also provides a vehicle embodiment, which includes the above-described vehicle terminal 10000. The structure and function of the vehicle terminal 10000 can be referred to the above embodiments, and will not be repeated here.

[0077] It should be noted that while preferred embodiments of this application are provided in the specification and accompanying drawings, this application can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are not intended to impose additional limitations on the content of this application; their purpose is to provide a more thorough and comprehensive understanding of the disclosure of this application. Furthermore, the above-described technical features can be combined with each other to form various embodiments not listed above, all of which are considered to be within the scope of this application's specification. Moreover, those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A vehicle-mounted terminal, characterized in that, include: case; A circuit board is disposed within the housing, and the circuit board has a first surface; An antenna assembly is electrically connected to the circuit board, the antenna assembly is disposed on the edge of the first surface, and the antenna assembly is perpendicular to the first surface.

2. The vehicle-mounted terminal according to claim 1, characterized in that, The antenna assembly includes a 5G antenna, a MIMO antenna, and a WIFI antenna, which are sequentially and spaced apart at the edge of the first surface.

3. The vehicle-mounted terminal according to claim 2, characterized in that... , The first surface is provided with a first edge and a second edge, the first edge and the second edge being disposed opposite to each other along a first direction; The number of 5G antennas, the number of MIMO antennas, and the number of WIFI antennas are all two. Along the second direction, one 5G antenna, one MIMO antenna, and one WIFI antenna are sequentially arranged on the first edge, and another WIFI antenna, another MIMO antenna, and another 5G antenna are sequentially arranged on the second edge. The second direction is perpendicular to the first direction.

4. The vehicle-mounted terminal according to claim 3, characterized in that, Along the first direction, one of the 5G antennas is arranged opposite to another of the WIFI antennas, one of the MIMO antennas is arranged opposite to another of the MIMO antennas, and one of the WIFI antennas is arranged opposite to another of the 5G antennas.

5. The vehicle-mounted terminal according to claim 3, characterized in that, Each of the 5G antennas is electrically connected to the circuit board via a single feed point; and / or, Each of the MIMO antennas is electrically connected to the circuit board via a single feed point; and / or Each of the WIFI antennas is electrically connected to the circuit board via a single feed point.

6. The vehicle-mounted terminal according to any one of claims 2-5, characterized in that, The 5G antenna includes a first substrate and a first radiating layer, wherein the first substrate is vertically disposed on the edge of the first surface and the first radiating layer is disposed on the first substrate; The first radiation layer includes a first radiation stub, a second radiation stub, and a third radiation stub connected in sequence, with the first radiation stub, the second radiation stub, and the third radiation stub each corresponding to a different frequency band.

7. The vehicle-mounted terminal according to any one of claims 2-5, characterized in that, The MIMO antenna includes a second substrate and a second radiating layer, the second substrate being perpendicularly disposed on the edge of the first surface, and the second radiating layer being disposed on the second substrate; The second radiating layer includes a rectangular patch and an arc-shaped patch, with the arc-shaped patch disposed on one side of the rectangular patch along the vertical direction of the first surface.

8. The vehicle-mounted terminal according to any one of claims 2-5, characterized in that, The structure of the WIFI antenna includes a third substrate and a third radiating layer. The third substrate is vertically disposed on the edge of the first surface, and the third radiating layer is disposed on the third substrate. The third radiation layer includes a first symmetrical radiation branch and a second symmetrical radiation branch arranged sequentially. Both the first symmetrical radiation branch and the second symmetrical radiation branch are arranged symmetrically about an axis of symmetry, which is parallel to the vertical direction of the first surface.

9. The vehicle-mounted terminal according to any one of claims 1-5, characterized in that... , The first surface is provided with a conductive area and an isolation area. The conductive area is electrically connected to the antenna assembly, and the isolation area is provided at the edge of the first surface and surrounds the conductive area.

10. A vehicle, characterized in that, Includes the vehicle-mounted terminal as described in any one of claims 1-9.

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