5g antenna and communication device

Abstract

The application discloses a 5G antenna and a communication device. The 5G antenna comprises an antenna and a first mainboard. The antenna comprises a first branch, the first branch comprises a first part and a second part, and the second part is arranged to be bent towards a third direction. In a first direction, one side of the first part is connected with a second branch, and the other side of the first part is connected with a third branch and a fourth branch. One end of the fourth branch away from the first branch is connected with a fifth branch, the fifth branch comprises a third part and a fourth part, the fourth part is connected with the fourth branch, and the third part is arranged to be bent towards the third direction. One end of the third part close to the second part is connected with a sixth branch. One end of the second part away from the first part is connected with a seventh branch, and one end of the sixth branch away from the fourth branch is connected with an eighth branch. The first mainboard is connected with the seventh branch and the eighth branch. Through the distribution of each branch of the antenna, the efficiency and other performances of the 5G antenna in a limited space can be improved.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to a 5G antenna and communication device. Background Technology

[0002] With the rapid development of information technology, fifth-generation mobile communication technology (5G) has fully entered the public eye, becoming a core driving force for the digital transformation of society. Compared with 4G technology, 5G has three revolutionary breakthroughs: First, in terms of transmission speed, it is significantly improved compared to 4G. Second, in terms of latency performance, 5G reduces end-to-end latency to the millisecond level, providing technical assurance for scenarios with stringent real-time requirements. To fully realize the potential of 5G technology, the optimization of the antenna system is crucial. Improving antenna efficiency within limited space is a pressing technical problem that needs to be solved. Summary of the Invention

[0003] This application aims to provide a 5G antenna and communication device, which aims to improve the antenna efficiency in a limited space.

[0004] In one aspect, this application proposes a 5G antenna, including an antenna and a first mainboard. The antenna includes a first stub, which comprises a first portion and a second portion, the second portion being bent towards a third direction. Along a first direction, a second stub is connected to one side of the first portion, and a third and a fourth stub are connected to the other side of the first portion. The fourth stub is closer to the second portion than the third stub. Along a second direction, a first gap exists between the third and fourth stubs. The first, second, and third directions are mutually perpendicular. A fifth stub is connected to the end of the fourth stub furthest from the first stub. The fifth stub comprises a third portion and a fourth portion, the fourth portion being connected to the fourth stub, and the third portion being bent towards a third direction. Along the first direction, the lengths of the second, third, and fourth stubs are all different. A sixth stub is connected to the end of the third portion closer to the second portion. Along the first direction, the sixth stub extends towards the second portion, and a second gap exists between the sixth stub and the second portion. Along the second direction, a third gap exists between the sixth stub and the fourth stub. The second section has a seventh branch connected to its end furthest from the first section, and the sixth branch has an eighth branch connected to its end furthest from the fourth branch. The first main board is connected to the seventh and eighth branches; the seventh branch is used for power supply, and the eighth branch is used for grounding.

[0005] In the above scheme, the distribution of antenna segments improves the efficiency and performance of the 5G antenna within a limited space. Specifically, the first part of the first segment of the antenna is configured with a second and third segment along a first direction, and the second part of the first segment is configured with a fourth segment along the first direction. Different lengths of the second, third, and fourth segments can cover different frequency bands, enabling the 5G antenna to operate on multiple frequencies. The second and third segments are bent towards a third direction, maintaining electrical length through distributed capacitance while reducing physical size, thus miniaturizing the 5G antenna and achieving performance requirements within a limited space. Setting the first, second, and third gaps allows adjustment of the antenna's equivalent resistance, inductance, and capacitance, achieving impedance matching. The arrangement of the first, second, and third gaps reduces signal crosstalk between frequency bands, allowing each band to operate independently. The first main board is connected to the seventh segment for signal transmission and processing, and the first main board forms a ground plane connected to the eighth segment to stabilize antenna performance and reduce electromagnetic coupling. The above settings enable 5G to achieve good performance requirements within a limited space, optimize antenna performance, and improve antenna efficiency.

[0006] In some embodiments, the antenna further includes a first spring-loaded pin and a second spring-loaded pin. The first spring-loaded pin is located on the seventh stub, and the second spring-loaded pin is located on the eighth stub. The seventh stub is connected to the first main board via the first spring-loaded pin, and the eighth stub is connected to the first main board via the second spring-loaded pin. The first spring-loaded pin serves as a feed point, and the second spring-loaded pin serves as a ground point. By providing the first and second spring-loaded pins, and connecting the seventh and eighth stubs to the first main board via the first and second spring-loaded pins respectively, power is supplied and grounded. The spring-loaded pins can compensate for contact errors, ensuring good contact between the feed point and the ground point and the first main board, reducing the occurrence of "lackluster connections."

[0007] In some embodiments, the first spring pin is provided with a first port, which is connected to the first motherboard. Providing a first port on the first spring pin allows for smooth energy guidance into the antenna, reducing radiation mode distortion caused by improper feeding methods.

[0008] In some embodiments, the 5G antenna further includes a first housing and a second housing, which together form a first space, within which the antenna and the first motherboard are disposed. By providing the first and second housings and placing the antenna and the first motherboard within the first space, physical protection can be provided for the antenna and the first motherboard, reducing interference from the external environment.

[0009] In some embodiments, the first housing includes a first sidewall and a bottom wall, the first sidewall being perpendicular to the bottom wall. A first portion, a second segment, a third segment, a fourth segment, and a fourth portion are attached to the first sidewall. A second portion, a third portion, a sixth segment, a seventh segment, and an eighth segment are attached to the bottom wall. This arrangement of the first portion, second segment, third segment, fourth segment, and fourth portion attached to the first sidewall, and the second portion, third portion, sixth segment, seventh segment, and eighth segment attached to the bottom wall, allows the first housing to provide support for the antenna and keeps the antenna traces as far away from the first motherboard as possible, reducing interference from the first motherboard to the antenna.

[0010] In some embodiments, the length of the third stub along the first direction is 49mm to 51mm. The length of the fourth stub along the first direction is 39mm to 41mm. The length of the third gap along the first direction is 22mm to 24mm. Adjusting the lengths of the third stub, the fourth stub, and the third gap can improve the efficiency of the antenna in the operating frequency band.

[0011] In some embodiments, the 5G antenna further includes a second motherboard and a connector. The first motherboard includes a first surface and a second surface disposed opposite to each other, and the second motherboard includes a third surface. The first surface is connected to the antenna, the second surface faces the third surface, the connector is disposed between the second and third surfaces, and the first and second motherboards are connected via the connector. Along a second direction, the projection of the second motherboard falls within the projection of the first motherboard. Setting up a second motherboard and connecting it to the first motherboard via the connector can improve the motherboard's computing power and reduce latency or antenna performance degradation caused by computing power overload on a single motherboard. Furthermore, the first and second motherboards can share key modules, reducing redundant design and the size and power consumption of redundant power circuits.

[0012] In some embodiments, the third, fourth, and sixth branches are arranged in parallel. Arranging the third, fourth, and sixth branches in parallel can enhance electromagnetic coupling, optimize impedance matching, and reduce cross-interference between adjacent frequency bands.

[0013] In some embodiments, along the first direction, the end of the third stub furthest from the first stub extends beyond the fourth and fifth stubs. By setting the lengths of the third, fourth, and fifth stubs, performance within the frequency band can be optimized, and interference between frequency bands can be reduced.

[0014] Secondly, this application also proposes a communication device including a 5G antenna according to any embodiment of the first aspect.

[0015] Additional aspects and advantages of the embodiments of this application will be described, shown, or illustrated in part by way of implementation of the embodiments of this application in the following description. Attached Figure Description

[0016] One or more embodiments are illustrated by way of example with reference to the accompanying drawings, which are not intended to limit the embodiments, and elements having the same reference numerals in the drawings are designated as similar elements.

[0017] Figure 1 Here are exploded views of 5G antennas according to some embodiments of this application;

[0018] Figure 2 This is a schematic diagram of the antenna structure of some embodiments of this application;

[0019] Figure 3 This is a schematic diagram of the antenna structure of some embodiments of this application;

[0020] Figure 4 This is a schematic diagram of the antenna structure of some embodiments of this application;

[0021] Figure 5 This is a schematic diagram of the 5G antenna portion structure of some embodiments of this application;

[0022] Figure 6 The figures show antenna efficiency test results for some embodiments of this application.

[0023] Figure 7 The diagram shows the antenna gain test results for some embodiments of this application.

[0024] Explanation of reference numerals in the attached diagram: 1. Antenna; 11. First stub; 111. First part; 112. Second part; 12. Second stub; 13. Third stub; 14. Fourth stub; 15. Fifth stub; 151. Third part; 152. Fourth part; 16. Sixth stub; 17. Seventh stub; 18. Eighth stub; 19. First spring-loaded foot; 191. First port; 110. Second spring-loaded foot; 101. First gap; 102. Second gap; 103. Third gap;

[0025] 2. First motherboard; 21. First surface; 22. Second surface;

[0026] 3. First shell; 31. First sidewall; 32. Bottom wall;

[0027] 4. Second shell;

[0028] 5. Second motherboard; 51. Third surface;

[0029] 6. Connectors;

[0030] X, first direction; Y, second direction; Z, third direction. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this application, but not all embodiments.

[0032] In this application, the reference to "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments.

[0033] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0034] The technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0035] Firstly, this application proposes a 5G antenna, please refer to... Figure 1 This includes antenna 1 and the first mainboard 2. Please refer to... Figures 2 to 4Antenna 1 includes a first stub 11, which comprises a first portion 111 and a second portion 112, the second portion 112 being bent towards a third direction Z. Along a first direction X, one side of the first portion 111 is connected to the second stub 12, and the other side of the first portion 111 is connected to a third stub 13 and a fourth stub 14. The fourth stub 14 is closer to the second portion 112 than the third stub 13. Along a second direction Y, a first gap 101 exists between the third stub 13 and the fourth stub 14. The first direction X, the second direction Y, and the third direction Z are all perpendicular to each other. The end of the fourth stub 14 furthest from the first stub 11 is connected to a fifth stub 15, which comprises a third portion 151 and a fourth portion 152, the fourth portion 152 being connected to the fourth stub 14, and the third portion 151 being bent towards a third direction Z. Along the first direction X, the lengths of the second stub 12, the third stub 13, and the fourth stub 14 are all different. The third part 151 is connected to a sixth branch 16 near the end of the second part 112. Along the first direction X, the sixth branch 16 extends toward the second part 112, and a second gap 102 exists between the sixth branch 16 and the second part 112. Along the second direction Y, a third gap 103 exists between the sixth branch 16 and the fourth branch 14. The end of the second part 112 away from the first part 111 is connected to a seventh branch 17, and the end of the sixth branch 16 away from the fourth branch 14 is connected to an eighth branch 18. The first main board 2 is connected to the seventh branch 17 and the eighth branch 18. The seventh branch 17 is used for power supply, and the eighth branch 18 is used for grounding.

[0036] In the above scheme, by distributing the various branches of antenna 1, the efficiency and other performance of the 5G antenna within a limited space can be improved. Specifically, the first part 111 of the first branch 11 of antenna 1 is provided with a second branch 12 and a third branch 13 along the first direction X, and the second part 112 of the first branch 11 is provided with a fourth branch 14 along the first direction X. The second branch 12, the third branch 13, and the fourth branch 14 of different lengths can cover different frequency bands, enabling the 5G antenna to operate on multiple frequencies. The second part 112 and the third part 151 are bent towards the third direction Z, which can maintain the electrical length through distributed capacitance while shortening the physical size, enabling the 5G antenna to be miniaturized and meet performance requirements within a limited space. Setting the first gap 101, the second gap 102, and the third gap 103 can adjust the equivalent resistance, inductance, and capacitance of antenna 1 to achieve impedance matching. Setting the first gap 101, the second gap 102, and the third gap 103 can reduce signal crosstalk between different frequency bands, allowing each frequency band to operate independently. The first motherboard 2 is connected to the seventh branch 17 to realize signal transmission and signal processing. The first motherboard 2 also forms a ground plane and is connected to the eighth branch 18 to stabilize the performance of antenna 1 and reduce electromagnetic coupling. The above settings enable the 5G antenna to achieve good performance requirements within a limited space, optimize the performance of antenna 1, and improve the efficiency of antenna 1.

[0037] In some embodiments, please refer to Figures 2 to 4 Antenna 1 also includes a first spring-loaded pin 19 and a second spring-loaded pin 110. The first spring-loaded pin 19 is located at the seventh branch 17, and the second spring-loaded pin 110 is located at the eighth branch 18. The seventh branch 17 is connected to the first main board 2 via the first spring-loaded pin 19, and the eighth branch 18 is connected to the first main board 2 via the second spring-loaded pin 110. The first spring-loaded pin 19 serves as the feed point, and the second spring-loaded pin 110 serves as the ground point. By setting the first spring-loaded pin 19 and the second spring-loaded pin 110, and connecting the seventh branch 17 and the eighth branch 18 to the first main board 2 via the first spring-loaded pin 19 and the second spring-loaded pin 110 respectively, power supply and grounding are achieved. The spring-loaded pins can compensate for contact errors, ensuring good contact between the feed point and the ground point and the first main board 2, reducing the occurrence of "lackluster connections."

[0038] In some embodiments, please refer to Figure 3 The first spring pin 19 is provided with a first port 191, which is connected to the first main board 2. By providing the first port 191 on the first spring pin 19, energy can be smoothly guided into the antenna 1, reducing radiation mode distortion caused by improper feeding methods.

[0039] In some embodiments, please refer to Figure 1The 5G antenna also includes a first housing 3 and a second housing 4, which together form a first space (not shown in the figure). The antenna 1 and the first motherboard 2 are disposed within the first space. By setting the first housing 3 and the second housing 4 and placing the antenna 1 and the first motherboard 2 within the first space, physical protection can be provided for the antenna 1 and the first motherboard 2, reducing interference from the external environment to the antenna 1.

[0040] In some embodiments, please refer to Figure 5 The first housing 3 includes a first sidewall 31 and a bottom wall 32, with the first sidewall 31 perpendicular to the bottom wall 32. A first portion 111, a second branch 12, a third branch 13, a fourth branch 14, and a fourth portion 152 are attached to the first sidewall 31. A second portion 112, a third portion 151, a sixth branch 16, a seventh branch 17, and an eighth branch 18 are attached to the bottom wall 32. This arrangement of the first portion 111, second branch 12, third branch 13, fourth branch 14, and fourth portion 152 to the first sidewall 31, and the second portion 112, third portion 151, sixth branch 16, seventh branch 17, and eighth branch 18 to the bottom wall 32, allows the first housing 3 to provide support for the antenna 1 and keeps the antenna 1's wiring as far away from the first motherboard 2 as possible, reducing interference from the first motherboard 2 to the antenna 1.

[0041] In some embodiments, the length of the third stub 13 along the first direction X is 49mm to 51mm. The length of the fourth stub 14 along the first direction X is 39mm to 41mm. The length of the third gap 103 along the first direction X is 22mm to 24mm. Adjusting the lengths of the third stub 13, the fourth stub 14, and the third gap 103 can improve the efficiency of the antenna 1 in the operating frequency band.

[0042] In some embodiments, please refer to Figure 1 The 5G antenna also includes a second motherboard 5 and a connector 6. The first motherboard 2 includes a first surface 21 and a second surface 22 disposed opposite to each other, and the second motherboard 5 includes a third surface 51. The first surface 21 is connected to the antenna 1, the second surface 22 faces the third surface 51, and the connector 6 is disposed between the second surface 22 and the third surface 51. The first motherboard 2 and the second motherboard 5 are connected via the connector 6. Along the second direction Y, the projection of the second motherboard 5 falls within the projection of the first motherboard 2. Setting the second motherboard 5 and connecting it to the first motherboard 2 via the connector 6 can improve the computing power of the motherboard and reduce the latency caused by computing power overload of a single motherboard or the performance degradation of the antenna 1. Furthermore, the first motherboard 2 and the second motherboard 5 can share key modules, reducing redundant design and reducing the size and power consumption of redundant power supply circuits.

[0043] In some embodiments, please refer to Figures 2 to 4The third branch 13, the fourth branch 14, and the sixth branch 16 are arranged in parallel. Arranging the third branch 13, the fourth branch 14, and the sixth branch 16 in parallel with each other can enhance electromagnetic coupling, optimize impedance matching, and reduce cross-interference between adjacent frequency bands.

[0044] In some embodiments, please refer to Figure 2 and Figure 3 Along the first direction X, the end of the third branch 13 furthest from the first branch 11 extends beyond the fourth branch 14 and the fifth branch 15. By setting the lengths of the third branch 13, the fourth branch 14, and the fifth branch 15, performance within the frequency band can be optimized and interference between frequency bands can be reduced.

[0045] To better illustrate this solution, test result graphs for some embodiments are provided. Please refer to them. Figure 6 and Figure 7 . Figure 6 The figure shows the antenna efficiency test results. As can be seen from the figure, the antenna efficiency is not less than 40% in the operating frequency bands of 0.617GHz~0.96GHz, 1.71GHz~2.69GHz, and 3.3GHz~4.2GHz, indicating a significant improvement in antenna efficiency.

[0046] Figure 7 The figure shows the antenna gain test results. As can be seen from the figure, the antenna gain is high in the operating frequency bands of 0.617GHz~0.96GHz, 1.71 GHz~2.69GHz, and 3.3 GHz~4.2GHz, which can meet the operating requirements.

[0047] Secondly, this application also proposes a communication device including a 5G antenna according to any embodiment of the first aspect.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them; under the concept of this application, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of this application as described above, which are not provided in detail for the sake of brevity; although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A 5G antenna, characterized in that, Including the antenna and the first motherboard: The antenna includes a first stub, which comprises a first portion and a second portion, the second portion being bent towards a third direction; along a first direction, a second stub is connected to one side of the first portion, and a third stub and a fourth stub are connected to the other side of the first portion; wherein the fourth stub is closer to the second portion than the third stub; along a second direction, a first gap exists between the third stub and the fourth stub; the first direction, the second direction, and the third direction are mutually perpendicular. The fourth branch is connected to a fifth branch at the end away from the first branch. The fifth branch includes a third part and a fourth part. The fourth part is connected to the fourth branch. The third part is bent toward the third direction. Along the first direction, the lengths of the second branch, the third branch, and the fourth branch are all different. The third part is connected to a sixth branch at one end near the second part. Along the first direction, the sixth branch extends toward the second part, and there is a second gap between the sixth branch and the second part; along the second direction, there is a third gap between the sixth branch and the fourth branch. The second part is connected to a seventh branch at the end furthest from the first part, and the sixth branch is connected to an eighth branch at the end furthest from the fourth branch; The first motherboard is connected to the seventh branch and the eighth branch, the seventh branch is used for power supply, and the eighth branch is used for grounding.

2. The 5G antenna according to claim 1, characterized in that, The antenna also includes a first spring-loaded pin and a second spring-loaded pin; The first spring pin is located on the seventh branch, and the second spring pin is located on the eighth branch. The seventh branch is connected to the first motherboard through the first spring pin, and the eighth branch is connected to the first motherboard through the second spring pin. The first spring pin is a power supply point, and the second spring pin is a grounding point.

3. The 5G antenna according to claim 2, characterized in that, The first spring pin is provided with a first port, which is connected to the first motherboard.

4. The 5G antenna according to claim 1, characterized in that, The 5G antenna also includes a first housing and a second housing, the first housing and the second housing enclosing a first space, and the antenna and the first motherboard are disposed within the first space.

5. The 5G antenna according to claim 4, characterized in that, The first housing includes a first sidewall and a bottom wall, wherein the first sidewall is perpendicular to the bottom wall; The first part, the second branch, the third branch, the fourth branch, and the fourth part are attached to the first sidewall; the second part, the third part, the sixth branch, the seventh branch, and the eighth branch are attached to the bottom wall.

6. The 5G antenna according to claim 1, characterized in that, The length of the third branch along the first direction is 49mm~51mm; the length of the fourth branch along the first direction is 39mm~41mm; and the length of the third gap along the first direction is 22mm~24mm.

7. The 5G antenna according to claim 1, characterized in that, The 5G antenna also includes a second motherboard and connectors; The first motherboard includes a first surface and a second surface disposed opposite to each other, and the second motherboard includes a third surface; the first surface is connected to the antenna, the second surface faces the third surface, the connector is disposed between the second surface and the third surface, and the first motherboard and the second motherboard are connected through the connector; Along the second direction, the projection of the second motherboard falls into the projection of the first motherboard.

8. The 5G antenna according to claim 1, characterized in that, The third, fourth, and sixth branches are arranged in parallel.

9. The 5G antenna according to claim 1, characterized in that, Along the first direction, the end of the third branch that is away from the first branch extends beyond the fourth and fifth branches.

10. A communication device, characterized in that, Includes the 5G antenna as described in any one of claims 1 to 9.

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