5G antenna module

Abstract

The utility model discloses a 5G antenna module. The 5G antenna module comprises a housing and an antenna end installed in the housing. The shell comprises an upper shell and a lower shell, the upper shell and the lower shell are fixedly connected, and the antenna end is located in a space formed by the upper shell and the lower shell; the antenna end comprises a circuit board and four groups of antennas mounted on the circuit board and used for receiving / transmitting 5G signals, the four groups of antennas are arranged in a staggered manner, the four groups of antennas are respectively a Main antenna, an Aux antenna, a first Mimo antenna and a second Mimo antenna, the Main antenna and the first Mimo antenna are arranged on one side of the circuit board, and the Aux antenna and the second Mimo antenna are arranged on the other side of the circuit board. And the Aux antenna and the second branch Mimo antenna are arranged on the other side of the circuit board and are parallel to each other. The 360-degree omnidirectional antenna is simple in structure, convenient to install and use, capable of achieving 360-degree omnidirectional signal receiving, good in receiving effect and high in sensitivity, covers the V2X frequency, does not need to add a V2X antenna, and saves cost and antenna space.

Description

Technical Field

[0001] The utility model belongs to the technical field of antennas, and particularly relates to a 5G antenna module. Background Art

[0002] The blueprint of the 5G network is a high speed 100 times that of 4G, reaching 10 Gbit / s, a low latency of less than 1 ms, a high density supporting more than 100 billion connections, and a high capacity 1000 times that of 4G. Applying 5G antennas to vehicles to realize vehicle networking and driverless applications will be a trend. With the development of automotive intelligence, automotive antennas are not only for wireless local area networks, mobile networks, and positioning; but also Bluetooth antennas are added to realize functions such as keyless entry and Internet of Things connection. Now the technology of domestic cars is becoming more and more mature. Currently, cars are developing towards intelligent terminals, rather than simply driving tools, requiring more and more antennas to be integrated in the vehicle to obtain information such as vehicles, roads, communications, positioning, environmental perception, and information processing.

[0003] The new technology puts forward new requirements for in-vehicle electronics. The 5G / MIMO multiple-input multiple-output technology has multiple antennas at the transmitting and receiving ends, thereby doubling the system transmission rate and transmission quality without increasing the bandwidth. As an important way to improve communication systems, multi-antenna technology has become a research hotspot in 5G wireless communication. In order to improve the data transmission rate and transmission quality, the 2.5G T-Box antenna often requires more than 4 5G antenna groups. The increase in the number of antennas will cause overcrowding of the internal antennas of the T-Box and poor isolation, which will not only cause signal interference but also the following problems:

[0004] 1. Traditional antennas have a single function. The more electronic devices there are, the more antennas are required. Installing multiple transmitting and receiving antennas on a car with limited space is extremely inconvenient and the cost is also high.

[0005] 2. Currently, most mainstream automotive antennas use shark fin antennas. However, all automotive antennas are placed inside the fin antenna, with limited space, and it is easy for antennas to interfere with each other. Moreover, the inside of the fin antenna cannot meet the increasing antenna requirements, or increasing the volume of the fin antenna is unacceptable for the overall vehicle shape and appearance.

[0006] 3. With the development of 5G technology, future in-vehicle communication will become more intelligent and have higher requirements for transmission rate. The previous 4G can no longer meet the requirements of in-vehicle communication. The 5G antenna requires 4 antennas to cooperate with the system. The increase in the number of antennas results in a large space occupation by traditional designs.

[0007] 4. The low frequency of the traditional 5G antenna box is 824 - 960 MHz, and not all frequency bands can be covered.

[0008] 5. Traditional antenna boxes only support domestic frequency bands or European and American frequency bands and cannot cover all of them.

[0009] 6. Traditional vehicle-mounted antennas are specific to a particular vehicle model. Summary of the Invention

[0010] The main technical problems to be solved by the present utility model are the signal interference of the current 5G antenna box, the relatively large occupied space in the design, and the inability to cover all frequency bands.

[0011] To solve the above technical problems, a technical solution adopted by the present utility model is:

[0012] A 5G antenna module includes a housing and an antenna end installed in the housing;

[0013] The housing includes an upper shell and a lower shell, the upper shell and the lower shell are fixedly connected, and the antenna end is located in the space formed by the upper shell and the lower shell;

[0014] The antenna end includes a circuit board and four groups of antennas installed on the circuit board for receiving / transmitting 5G signals. The four groups of antennas are arranged in a staggered manner. The four groups of antennas are respectively a Main antenna, an Aux antenna, a first Mimo antenna, and a second Mimo antenna. The Main antenna and the first Mimo antenna are arranged on one side of the circuit board, and the Aux antenna and the second Mimo antenna are arranged on the other side of the circuit board, and they are parallel to each other in pairs.

[0015] Further, the Main antenna is provided with a first branch perpendicular to the circuit board and a second branch parallel to the circuit board. The first branch and the second branch are perpendicularly fixedly connected. The two ends of the second branch respectively extend out third branches and fourth branches towards the circuit board, and the third branches and the fourth branches are perpendicular to the circuit board.

[0016] Further, the Aux antenna is provided with a fifth branch perpendicular to the circuit board and a sixth branch parallel to the circuit board. The fifth branch and the sixth branch are perpendicularly fixedly connected. The two ends of the sixth branch respectively extend out seventh branches and eighth branches towards the circuit board, and the seventh branches and the eighth branches are perpendicular to the circuit board.

[0017] Further, the first Mimo antenna is provided with two groups of ninth branches and tenth branches respectively perpendicular to the horizontal direction of the circuit board and an eleventh branch parallel to the horizontal direction of the circuit board; the eleventh branch is fixed between the ninth branch and the tenth branch.

[0018] Further, the second Mimo antenna is provided with two sets of twelfth branches and thirteenth branches that are respectively perpendicular to the horizontal direction of the circuit board and a fourteenth branch that is parallel to the horizontal direction of the circuit board; the fourteenth branch is fixed between the twelfth branch and the thirteenth branch.

[0019] Further, the Main antenna and the Aux antenna are Sub6GHz antennas, and their operating frequency ranges include: 3300MHz to 4200MHz, 4400MHz to 5000MHz, 700MHz to 1000MHz, 1700MHz - 2700 MHz;

[0020] The operating frequency ranges of the first Mimo antenna and the second Mimo antenna include: 1700MHz to 2700MHz, 3300MHz to 4200MHz, 4400MHz to 5000MHz.

[0021] Advantages of the present utility model:

[0022] 1. The structure of the present utility model is simple, convenient to install and use, and can be installed inside the vehicle instrument panel, at the front and rear flow deflectors, and in the space under the roof skylight to receive and transmit radio wave signals.

[0023] 2. The present utility model increases the effectiveness of the antenna in receiving radio signals, can achieve 360-degree omnidirectional signal reception, has a good reception effect and high sensitivity.

[0024] 3. The transmitting ends of the 5G main and auxiliary antennas and the Mimo antennas of the present utility model are arranged in a staggered manner, and the ingenious layout of the antennas reduces the isolation degree to below -10db, realizes 5G full-band reception in a limited space, and can support the expansion of the function of two-way V2X antennas to realize multi-frequency wide-band reception.

[0025] 4. The antenna of the present utility model adopts a modular design, can provide different antenna combinations according to the requirements of each vehicle factory, and at the same time, this antenna box is an internal antenna module that can be used for all vehicle models. Description of the Drawings

[0026] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0027] Figure 2 is a schematic diagram of the antenna layout structure of the present utility model;

[0028] Figure 3 is a VSWR (Voltage Standing Wave Ratio) diagram of the Main antenna of the present utility model;

[0029] Figure 4 is a VSWR (Voltage Standing Wave Ratio) diagram of the Aux antenna of the present utility model;

[0030] Figure 5 It is the VSWR (Voltage Standing Wave Ratio) diagram of the first Mimo antenna of the present utility model;

[0031] Figure 6 It is the VSWR (Voltage Standing Wave Ratio) diagram of the second Mimo antenna of the present utility model;

[0032] Figure 7 It is the 5G antenna Isolation diagram;

[0033] Figure 8 It is the 5G antenna Isolation diagram;

[0034] Figure 9 It is the table of Avg Efficiency (Average Efficiency) values of the Main antenna;

[0035] Figure 10 It is the table of Avg Efficiency (Average Efficiency) values of the Aux antenna;

[0036] Figure 11 It is the table of Avg Efficiency (Average Efficiency) values of the first Mimo antenna;

[0037] Figure 12 It is the table of Avg Efficiency (Average Efficiency) values of the second Mimo antenna;

[0038] Figure 13 It is the 2D radiation pattern of the Main antenna;

[0039] Figure 14 It is the 2D radiation pattern of the Aux antenna;

[0040] Figure 15 It is the 2D radiation pattern of the first Mimo antenna;

[0041] Figure 16 It is the 2D radiation pattern of the second Mimo antenna;

[0042] Figure 17 It is the bottom surface connection diagram;

[0043] Figure 18 It is the antenna magnetic field distribution diagram;

[0044] Figure 19 It is the circuit board magnetic field distribution diagram;

[0045] Figure 20 It is the antenna current distribution diagram;

[0046] Figure 21 It is the circuit board current distribution diagram;

[0047] The markings of each part in the attached drawings are as follows:

[0048] 1. Housing; 11. Upper housing; 12. Lower housing; 2. Antenna end; 21. Main antenna; 211. First branch; 212. Second branch; 213. Third branch; 214. Fourth branch; 22. Aux antenna; 221. Fifth branch; 222. Sixth branch; 223. Seventh branch; 224. Eighth branch; 23. First Mimo antenna; 231. Ninth branch; 232. Eleventh branch; 233. Tenth branch; 24. Second Mimo antenna; 241. Twelfth branch; 242. Fourteenth branch; 243. Thirteenth branch; 25. Circuit board. Specific embodiments

[0049] The following elaborates on the preferred embodiments of the present utility model in conjunction with the attached drawings, so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making the protection scope of the present utility model more clearly defined.

[0050] Embodiment:

[0051] As Figures 1 to 2 shown, a 5G antenna module includes a housing 1 and an antenna end 2 installed in the housing 1;

[0052] The housing 1 includes an upper housing 11 and a lower housing 12, the upper housing 11 and the lower housing 12 are fixedly connected, and the antenna end 2 is located in the space formed by the upper housing 11 and the lower housing 12;

[0053] The antenna end 2 includes a circuit board 25 and four groups of antennas installed on the circuit board 25 for receiving / sending 5G signals. The four groups of antennas are arranged in a staggered manner. The four groups of antennas are respectively a Main antenna 21, an Aux antenna 22, a first Mimo antenna 23, and a second Mimo antenna 24. The Main antenna 21 and the first Mimo antenna 23 are arranged on one side of the circuit board, and the Aux antenna 22 and the second Mimo antenna 24 are arranged on the other side of the circuit board 25, parallel to each other in pairs. The Main antenna 21 and the Aux antenna 22 are Sub6GHz antennas, and their operating frequency ranges include: 3300 MHz - 4200 MHz, 4400 MHz - 5000 MHz, 700 MHz - 1000 MHz, 1700 MHz - 2700 MHz; the operating frequency ranges of the first Mimo antenna 23 and the second Mimo antenna 24 include: 1700 MHz - 2700 MHz, 3300 MHz - 4200 MHz, 4400 MHz - 5000 MHz.

[0054] Specifically, the Main antenna 21 is provided with a first branch 211 perpendicular to the circuit board 25 and a second branch 212 parallel to the circuit board 25. The first branch 211 and the second branch 212 are perpendicularly and fixedly connected. The two ends of the second branch 212 respectively extend out third branches 213 and fourth branches 214 towards the circuit board 25, and the third branches 213 and the fourth branches 214 are perpendicular to the circuit board 25.

[0055] The Aux antenna 22 is provided with a fifth branch 221 perpendicular to the circuit board 25 and a sixth branch 222 parallel to the circuit board 25. The fifth branch 221 and the sixth branch 222 are perpendicularly and fixedly connected. The two ends of the sixth branch 222 respectively extend out seventh branches 223 and eighth branches 224 towards the circuit board 25, and the seventh branches 223 and the eighth branches 224 are perpendicular to the circuit board 25.

[0056] The first Mimo antenna 23 is provided with two groups of ninth branches 231 and tenth branches 233 respectively perpendicular to the horizontal direction of the circuit board 25 and an eleventh branch 232 parallel to the horizontal direction of the circuit board 25; the eleventh branch 232 is fixed between the ninth branch 231 and the tenth branch 233.

[0057] The second Mimo antenna 24 is provided with two groups of twelfth branches 241 and thirteenth branches 243 respectively perpendicular to the horizontal direction of the circuit board 25 and a fourteenth branch 242 parallel to the horizontal direction of the circuit board 25; the fourteenth branch 242 is fixed between the twelfth branch 241 and the thirteenth branch 243.

[0058] The following is the Avg Efficiency value table of the Main antenna:

[0059]

[0060]

[0061] It can be seen therefrom that in the required frequency band (700 - 1000 MHz), its Efficiency is greater than 35%, meeting the requirements. In the frequency bands (1700 - 2700 MHz / 3300 - 5000 MHz), its Efficiency is greater than 40%, meeting the requirements.

[0062] The following is the Avg Efficiency value table of the Aux antenna:

[0063]

[0064]

[0065] It can be seen that in the required frequency bands (700 - 1000 MHz), the Efficiency is greater than 30%, meeting the requirements. It can be seen that in the required frequency bands (1700 - 2700 MHz / 3300 - 5000 MHz), the Efficiency is greater than 35%, meeting the requirements.

[0066] The following is the table of Avg Efficiency (average efficiency) values of the first Mimo antenna:

[0067]

[0068]

[0069] It can be seen that in the required frequency bands (1700 - 2700 MHz / 3300 - 5000 MHz), the Efficiency is greater than 45%, meeting the requirements.

[0070] The following is the table of Avg Efficiency (average efficiency) values of the second Mimo antenna:

[0071] Frequency Efficiency(%) Frequency Efficiency(%) 1.71GHz 48.49 3.65GHz 61.49 1.76GHz 48.14 3.7GHz 62.81 1.81GHz 48.20 3.75GHz 60.25 1.86GHz 42.89 3.8GHz 63.39 1.91GHz 47.57 3.85GHz 65.46 1.96GHz 43.40 3.9GHz 67.45 2.01GHz 49.93 3.95GHz 70.17 2.06GHz 40.11 4GHz 66.99 2.11GHz 40.36 4.05GHz 71.45 2.16GHz 47.76 4.1GHz 67.55 2.21GHz 49.31 4.15GHz 67.45 2.26GHz 41.42 4.2GHz 65.43 2.31GHz 42.36 4.25GHz 61.81 2.36GHz 46.39 4.3GHz 63.83 2.41GHz 51.29 4.35GHz 58.75 2.46GHz 52.57 4.4GHz 56.49 2.51GHz 48.75 4.45GHz 54.75 2.56GHz 49.24 4.5GHz 51.54 2.61GHz 48.49 4.55GHz 55.98 2.66GHz 46.34 4.6GHz 59.73 2.69GHz 47.53 4.65GHz 64.42 3.3GHz 52.48 4.7GHz 68.11 3.35GHz 54.26 4.75GHz 63.39 3.4GHz 57.68 4.8GHz 62.09 3.45GHz 57.21 4.85GHz 56.36 3.5GHz 58.51 4.9GHz 54.69 3.55GHz 58.35 4.95GHz 50.45 3.6GHz 64.55 5GHz 46.13

[0072] It can be seen that in the required frequency bands (1700 - 2700 MHz / 3300 - 5000 MHz), the Efficiency is greater than 45%, meeting the requirements.

[0073] Reference Figures 3 - 4 It can be seen that in the required frequency bands, the VSWR is less than 3, meeting the requirements.

[0074] Reference Figures 5 - 6 , it can be seen that in the required frequency bands (1710 - 2700 MHz / 3300 - 5000 MHz), the VSWR is less than 3, meeting the requirements.

[0075] Reference Figures 7 - 8 From the S-parameter diagram of the antenna, it can be seen that in the required frequency bands (700 - 960 MHz), the S21 is less than -10 dB, meeting the requirements. It can be seen that in the required frequency bands (1710 - 2690 MHz / 3300 - 5000 MHz), the S21 is less than -15 dB, meeting the requirements.

[0076] Reference Figures 9 - 12 It can be seen that there are no obvious pits in the 2D direction of the antenna, indicating that the radiation of the antenna in all directions meets the requirements. Therefore, the antenna is an omnidirectional antenna.

[0077] ReferenceFigure 13 It can be seen that the Main antenna has the strongest radiation at 960 MHz and 3300 MHz.

[0078] Reference Figure 14 It can be seen that the Aux antenna has the strongest radiation at 960 MHz and 2690 MHz.

[0079] Reference Figure 15 It can be seen that the first Mimo antenna has the strongest radiation at 3300 MHz and 5000 MHz.

[0080] Reference Figure 16 , it can be seen that the second Mimo antenna has the strongest radiation at 1710 MHz and 33000 MHz.

[0081] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structural transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A 5G antenna module, characterized in that: It comprises a housing (1) and an antenna end (2) installed in the housing (1); The housing (1) comprises an upper shell (11) and a lower shell (12), the upper shell (11) and the lower shell (12) are fixedly connected, and the antenna end (2) is located in a space formed by the upper shell (11) and the lower shell (12); The antenna end (2) comprises a circuit board (25) and four groups of antennas mounted on the circuit board (25) for receiving / sending 5G signals. The four groups of antennas are staggered and are respectively a Main antenna (21), an Aux antenna (22), a first Mimo antenna (23), and a second Mimo antenna (24). The Main antenna (21) and the first Mimo antenna (23) are arranged on one side of the circuit board, and the Aux antenna (22) and the second Mimo antenna (24) are arranged on the other side of the circuit board (25), and are parallel to each other.

2. A 5G antenna module according to claim 1, characterized in that: The Main antenna (21) is provided with a first branch (211) arranged perpendicularly to the circuit board (25) and a second branch (212) parallel to the circuit board (25); the first branch (211) is vertically fixedly connected to the second branch (212); two ends of the second branch (212) respectively extend toward the circuit board (25) to form a third branch (213) and a fourth branch (214); the third branch (213) and the fourth branch (214) are perpendicular to the circuit board (25).

3. A 5G antenna module according to claim 1, characterized in that: The Aux antenna (22) is provided with a fifth branch (221) arranged perpendicularly to the circuit board (25) and a sixth branch (222) parallel to the circuit board (25); the fifth branch (221) and the sixth branch (222) are vertically fixedly connected; two ends of the sixth branch (222) extend toward the circuit board (25) to form a seventh branch (223) and an eighth branch (224); the seventh branch (223) and the eighth branch (224) are perpendicular to the circuit board (25).

4. A 5G antenna module according to claim 1, characterized in that: The first Mimo antenna (23) is provided with two groups of a ninth branch (231) and a tenth branch (233) respectively perpendicular to the horizontal direction of the circuit board (25) and an eleventh branch (232) parallel to the horizontal direction of the circuit board (25); the eleventh branch (232) is fixed between the ninth branch (231) and the tenth branch (233).

5. The 5G antenna module according to claim 1, characterized in that: The second Mimo antenna (24) is provided with two groups of a twelfth branch (241) and a thirteenth branch (243) respectively perpendicular to the horizontal direction of the circuit board (25) and a fourteenth branch (242) parallel to the horizontal direction of the circuit board (25); the fourteenth branch (242) is fixed between the twelfth branch (241) and the thirteenth branch (243).

6. A 5G antenna module according to claim 1, characterized in that: The Main antenna (21) and the Aux antenna (22) are Sub6GHz antennas, and their operating frequency ranges include: 3300MHz to 4200MHz, 4400MHz to 5000MHz, 700MHz to 1000MHz, and 1700MHz to 2700MHz; The operating frequency ranges of the first Mimo antenna (23) and the second Mimo antenna (24) include: 1700MHz to 2700MHz, 3300MHz to 4200MHz, and 4400MHz to 5000MHz.

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