Antenna assembly and terminal device
By setting up multiple MIMO antennas on a separate small second circuit board in the terminal device and combining them with high-gain and omnidirectional antennas, the problem of insufficient communication capacity and gain is solved, achieving low-cost, high-capacity and high-gain communication effects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUIZHOU TCL MOBILE COMM CO LTD
- Filing Date
- 2025-06-11
- Publication Date
- 2026-05-12
AI Technical Summary
Existing communication terminal equipment has limited communication capacity and gain, making it difficult to meet high communication demands. Furthermore, base stations are costly and difficult to deploy.
A separate small second circuit board is set up in the terminal device to arrange multiple MIMO antennas, and combined with high-gain and omnidirectional antennas to increase the number of antennas and isolation, and optimize space utilization.
It improves communication capacity and performance, reduces additional footprint, and achieves low-cost, high-capacity, and high-gain communication.
Smart Images
Figure CN224232923U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of antenna technology, and in particular relates to an antenna assembly and a terminal device. Background Technology
[0002] With the development of technology, global communication networks are becoming increasingly interconnected, and users have higher and higher demands for wireless communication experiences, such as high bandwidth and strong signal strength. This means that the performance requirements for communication terminal equipment are also increasing. If high communication capacity and strong signal strength are achieved solely through base stations, it would lead to extremely high base station costs and difficulties in network deployment.
[0003] Currently, common communication terminals can generally only achieve 4×4 MIMO (Multiple Input Multiple Output) for each frequency band, and the communication capacity and gain are not large. Therefore, how to improve the communication performance of terminal equipment is an urgent problem to be solved. Utility Model Content
[0004] This application provides an antenna assembly and a terminal device that can increase the number of antennas, thereby increasing communication capacity and communication performance.
[0005] In a first aspect, embodiments of this application provide an antenna assembly, including:
[0006] First circuit board;
[0007] The second circuit board, the projection of the second circuit board on the first circuit board is located within the first circuit board, and the second circuit board is mounted on at least one side of the first circuit board;
[0008] At least four first antennas, each of which is a MIMO antenna and operates in the same frequency band, and four of the at least four first antennas are disposed on the second circuit board.
[0009] Optionally, the second circuit board includes a first sub-board and a second sub-board. The first sub-board is mounted on one side of the first circuit board, and the second sub-board is mounted on the other side of the first circuit board opposite to the first sub-board. The second sub-board is disposed among the four first antennas of the second circuit board, wherein two first antennas are disposed on the first sub-board and the other two first antennas are disposed on the second sub-board.
[0010] Optionally, one of the two first antennas located on the first sub-board includes a first radiator, a second radiator, and a first coaxial line. The first radiator is disposed on one side of the first sub-board away from the first circuit board, and the second radiator is disposed on the other side of the first sub-board opposite to the first radiator. The ground wire of the first coaxial line is connected to the second radiator, and the core wire of the first coaxial line is connected to the first radiator.
[0011] Optionally, the other first antenna among the two first antennas located on the first sub-board includes a third radiator and a second coaxial line. The third radiator is disposed on a side of the first sub-board away from the first circuit board and is adjacent to and spaced apart from the first radiator. The ground wire of the second coaxial line is connected to the second radiator, and the core wire of the second coaxial line is connected to the third radiator.
[0012] Optionally, one of the two first antennas located on the second sub-board includes a fourth radiator, a fifth radiator, and a third coaxial line. The fourth radiator is disposed on one side of the second sub-board away from the first circuit board, and the fifth radiator is disposed on the other side of the second sub-board opposite to the fourth radiator. The ground wire of the third coaxial line is connected to the fifth radiator, and the core wire of the third coaxial line is connected to the fourth radiator.
[0013] Optionally, the other first antenna among the two first antennas located on the second sub-board includes a sixth radiator and a fourth coaxial line. The sixth radiator is disposed on a side of the second sub-board away from the first circuit board and is adjacent to and spaced apart from the fourth radiator. The ground wire of the fourth coaxial line is connected to the fifth radiator, and the core wire of the fourth coaxial line is connected to the sixth radiator.
[0014] Optionally, the remaining first antennas of the at least four first antennas are distributed on the first circuit board, and the projection of the second circuit board onto the first circuit board is spaced apart from the remaining first antennas; and / or
[0015] The second circuit board includes a first side and a second side, which are disposed among the four first antennas of the second circuit board, wherein two first antennas are disposed on the first side of the second circuit board and the other two first antennas are disposed on the second side of the second circuit board.
[0016] Optionally, the antenna assembly further includes at least one second antenna, the second antenna operating at a frequency lower than that of the first antenna, and each second antenna is bent and connected to the first circuit board.
[0017] Secondly, embodiments of this application also provide a terminal device, including a housing and an antenna assembly as described in any of the preceding claims, wherein the antenna assembly is disposed within the housing.
[0018] Optionally, the antenna assembly further includes at least two third antennas, one of which is disposed on the first circuit board, and the other three third antennas are fixed to the housing.
[0019] In the antenna assembly and terminal device of this application embodiment, at least four of the four first antennas are independently disposed on a smaller second circuit board, rather than all of them are disposed on the motherboard, i.e., the first circuit board. This increases the number of MIMO antennas without taking up extra area, and also improves the isolation between antennas. Increasing the number of antennas increases antenna capacity and antenna performance, and also makes reasonable use of space. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without creative effort.
[0021] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings. In the following description, the same reference numerals denote the same parts.
[0022] Figure 1 This is a schematic diagram of the structure of an antenna assembly provided in an embodiment of this application.
[0023] Figure 2 This is another structural schematic diagram of the antenna assembly provided in the embodiments of this application.
[0024] Figure 3 This is another structural schematic diagram of the antenna assembly provided in the embodiments of this application.
[0025] Figure 4 This is a schematic diagram of the structure of the first antenna and the first sub-board provided in an embodiment of this application.
[0026] Figure 5 This is another structural schematic diagram of the first antenna and the first sub-board provided in the embodiments of this application.
[0027] Figure 6 This is a schematic diagram of the structure of the first antenna and the second sub-board provided in an embodiment of this application.
[0028] Figure 7 This is another structural schematic diagram of the first antenna and the second sub-board provided in an embodiment of this application.
[0029] Figure 8 This is a schematic diagram of the structure of a terminal device provided in an embodiment of this application.
[0030] Figure 9 This is another structural schematic diagram of the terminal device provided in the embodiments of this application. Detailed Implementation
[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0032] To improve the communication performance of terminal devices, embodiments of this application provide an antenna assembly and a terminal device, which will be described below in conjunction with the accompanying drawings.
[0033] For example, please refer to Figure 1 , Figure 1 This is a schematic diagram of an antenna assembly provided in an embodiment of this application. The antenna assembly 100 of this application includes a first circuit board 110, a second circuit board 120, and at least four first antennas 130.
[0034] The first circuit board 110 is used to arrange the antenna and related circuit devices. For the antenna assembly 100 to be applied to the terminal device, the first circuit board 110 can be understood as the motherboard. It can not only set up the antenna device, but also set up devices such as the processor, so as to control the antenna transmission and reception.
[0035] The area of the second circuit board 120 is smaller than that of the first circuit board 110. The projection of the second circuit board 120 onto the first circuit board 110 is located within the first circuit board 110, and the second circuit board 120 is mounted on at least one side of the first circuit board 110. The second circuit board 120 is an independent small board, and the second circuit board 120 is mainly used for arranging antennas.
[0036] At least four first antennas 130 can all be MIMO antennas, and each first antenna 130 operates in the same frequency band. Four of the at least four first antennas 130 are disposed on the second circuit board 120. For example, the number of first antennas 130 can be eight, all of which are MIMO antennas, with four of them disposed on the second circuit board 120, and the remaining four first antennas 130 disposed on the first circuit board 110, thereby achieving high antenna capacity and improving antenna performance.
[0037] In the antenna assembly 100 provided in this application embodiment, at least four of the four first antennas 130 are independently disposed on a smaller second circuit board 120, rather than all of them being disposed on the main board, i.e., the first circuit board. This increases the number of MIMO antennas without taking up extra area, and also improves the isolation between antennas. Increasing the number of antennas increases antenna capacity and antenna performance, and also makes reasonable use of space.
[0038] For example, the operating frequency band of the first antenna 130 can be in the range of 3000MHz to 6000MHz, i.e., a 5G sub-6G antenna. This example uses eight first antennas 130 as an example, and should not be interpreted as a limitation on the number of first antennas 130. Of the eight first antennas 130, the four first antennas 130 located on the second circuit board 120 can all be high-gain antennas. High-gain antennas have a narrower radiation direction, resulting in more concentrated radiation in certain directions, thus concentrating energy in those directions and manifesting as gain in those directions. The main characteristics of high-gain antennas include strong directivity, with the signal concentrated in a specific direction. This means the antenna can effectively concentrate energy in one direction, improving transmission efficiency, but coverage in other directions will be reduced. High-gain antennas typically refer to antennas with a gain of 8dBi or higher. The higher the gain, the stronger the signal concentration, and the farther the coverage area. As the gain increases, the antenna beamwidth becomes narrower. Narrow beams help reduce interference from other directions, but also require more precise alignment.
[0039] The second circuit board 120 being mounted on the first circuit board 110 can be achieved using a bracket. For example, the antenna assembly 100 also includes a bracket 140, which is positioned between the first circuit board 110 and the second circuit board 120. The bracket 140 supports the second circuit board 120 and can be detachably connected to both the first circuit board 110 and the second circuit board 120, for example, using screws, to facilitate later disassembly and maintenance. The second circuit board 120 may have positioning holes to allow it to be installed in the bracket 140 or at a predetermined position on the first circuit board 110.
[0040] It should be noted that the second circuit board 120 in this embodiment can be mounted on at least one side of the first circuit board 110. That is to say, the second circuit board 120 can have at least two configuration forms. In the first form, the second circuit board 120 includes two sub-boards, which are disposed opposite to each other on opposite sides of the first circuit board 110. In this case, two brackets 140 are needed to support and fix the two sub-boards respectively. In the second form, the second circuit board 120 is composed of a multilayer board, and the second circuit board 120 is disposed on one side of the first circuit board 110. In this case, only one bracket 140 is needed to support the second circuit board 120.
[0041] Please see Figure 2 and Figure 3 As shown, Figure 2 This is another schematic diagram of the antenna assembly provided in an embodiment of this application. Figure 3 This is another schematic diagram of the antenna assembly provided in the embodiments of this application. This embodiment of the application uses a second circuit board 120 comprising two sub-boards as an example for illustration. For the arrangement of the four first antennas 130 on the second circuit board 120, exemplarily, the second circuit board 120 includes a first sub-board 123 and a second sub-board 124. The first sub-board 123 is mounted on one side of the first circuit board 110 via a bracket 140, and the second sub-board 124 is mounted on the other side of the first circuit board 110 opposite to the first sub-board 123. Of the four first antennas disposed on the second circuit board 120, two first antennas are disposed on the first sub-board 123, and the other two first antennas are disposed on the second sub-board 124. For ease of explanation, the two first antennas set on the first sub-board 123 are labeled as first antenna 130a and first antenna 130b, and the two first antennas set on the second sub-board 124 are labeled as first antenna 130c and first antenna 130d. That is to say, first antenna 130a and first antenna 130b are set on the first sub-board 123, and first antenna 130c and first antenna 130d are set on the second sub-board 124.
[0042] Please combine Figures 1 to 3 And see Figure 4 and Figure 5 As shown, Figure 4 This is a schematic diagram of the structure of the first antenna and the first sub-board provided in an embodiment of this application. Figure 5This is another structural schematic diagram of the first antenna and the first sub-board provided in an embodiment of this application. The first antenna 130a disposed on the first sub-board 123 can be: the first antenna 130a includes a first radiator 131, a second radiator 132, and a first coaxial line 133. The first radiator 131 is disposed on one side of the first sub-board 123 opposite to the first circuit board 110. The shape of the first radiator 131 can be a strip with two branches, wherein the two branches can be stepped and diffuse outwards to meet the performance requirements of a high-gain antenna. In some embodiments, the two branches can be arranged symmetrically. The second radiator 132 is disposed on the other side of the first sub-board 123 opposite to the first radiator 131, that is, the second radiator 132 is hidden behind the first radiator 131, or in other words, the first radiator 131 and the second radiator 132 are located on the front and back sides of the first sub-board 123, respectively. The second radiator 132 can be sheet-like, and the projection of the first radiator 131 onto the second radiator 132 can be located within the second radiator 132, that is, the area of the second radiator 132 is larger than the area of the first radiator 131.
[0043] The ground wire of the first coaxial cable 133 is connected to the second radiator 132, and the connection can be made by setting a port in the second radiator 132; the core wire of the first coaxial cable 133 is connected to the first radiator 131, and the connection can also be made by setting a port.
[0044] It should be noted that the coaxial cable in this application embodiment is referred to as the port connected to the coaxial cable, and should not be construed as a limitation on the coaxial cable.
[0045] The first radiator 131 and the second radiator 132 form an asymmetric dipole antenna, and the distance between the first radiator 131 and the second radiator 132 can be greater than or equal to 0.8 mm to ensure the isolation between them. Furthermore, the second radiator 132 can also act as a reflector for the first radiator 131. Thus, high gain performance can be achieved while reducing the cost of the reflector, and the gain can reach more than 15 dBi.
[0046] Please continue to combine Figures 1 to 3 And see Figure 4 and Figure 5As shown, the first antenna 130b disposed on the first sub-board 123 can be configured as follows: The first antenna 130b includes a third radiator 134 and a second coaxial line 135. The third radiator 134 is disposed on one side of the first sub-board 123, that is, the third radiator 134 and the first radiator 131 are disposed on the same side of the first sub-board 123, and are adjacent to and spaced apart from the first radiator 131. For example, the third radiator 134 may include a strip and two branches. The strip of the third radiator 134 can be perpendicular to the strip of the first radiator 131, and to avoid obstruction, the strip of the third radiator 134 can be divided into two separate parts, with the strip of the first radiator 131 passing through the third radiator 134, thereby achieving isolation between the first radiator 131 and the third radiator 134. The two branches of the third radiator 134 can also be in a stepped form and diverge outwards to meet the requirements of a high-gain antenna. The ground wire of the second coaxial cable 135 is connected to the second radiator 132. A connection port can be provided on the second radiator 132, and this connection port is different from the port connecting the second radiator 132 to the first coaxial cable 133. The core wire of the second coaxial cable 135 is connected to the third radiator 134, and this connection can be achieved by providing a port on the third radiator 134. That is, the first antenna 130b and the first antenna 130a share the second radiator 132, which saves on component placement.
[0047] The third radiator 134 and the second radiator 132 form an asymmetric dipole antenna. The second radiator 132 is located at the bottom of the third radiator 134. The two are located on the front and back sides of the first sub-board 123, respectively, with a spacing of 0.8 mm or more to ensure isolation. At the same time, the second radiator 132 can also act as a reflector for the third radiator 134. This can achieve high gain performance and reduce the cost of the reflector. The gain can reach 15 dBi or more.
[0048] It should be noted that the asymmetric dipole first antenna 130a and the asymmetric dipole first antenna 130b are polarized at ±45°. Although they are close to each other, they have good isolation, which can reach -25dB or above.
[0049] For the case where the first antenna 130c and the first antenna 130d are respectively set on the second sub-board 124, the case where the first antenna 130a and the first antenna 130b are set on the first sub-board 123 can be referred to above.
[0050] Please combine Figures 1 to 3 And see Figure 6 and Figure 7 As shown, Figure 6 This is a schematic diagram of the structure of the first antenna and the second sub-board provided in an embodiment of this application. Figure 7This is another structural schematic diagram of the first antenna and the second sub-board provided in an embodiment of this application. Exemplarily, the first antenna 130c disposed on the second sub-board 124 can be: the first antenna 130c includes a fourth radiator 136, a fifth radiator 137, and a third coaxial cable 138. The fourth radiator 136 is disposed on one side of the second sub-board 124 opposite to the first circuit board 110. The shape of the fourth radiator 136 can be a strip with two branches, wherein the two branches can be stepped and diffuse outwards to meet the performance requirements of a high-gain antenna. In some embodiments, the two branches can be arranged symmetrically. The fifth radiator 137 is disposed on the other side of the second sub-board 124 opposite to the fourth radiator 136. It can be understood that the fifth radiator 137 is hidden behind the fourth radiator 136, or in other words, the fourth radiator 136 and the fifth radiator 137 are located on the front and back sides of the second sub-board 124, respectively. The fifth radiator 137 can be sheet-like, and the projection of the fourth radiator 136 onto the fifth radiator 137 can be located within the fifth radiator 137, that is, the area of the fifth radiator 137 is larger than the area of the fourth radiator 136.
[0051] The ground wire of the third coaxial cable 138 is connected to the fifth radiator 137, and the connection can be made by setting a port on the fifth radiator 137; the core wire of the third coaxial cable 138 is connected to the fourth radiator 136, and the connection can also be made by setting a port.
[0052] The fourth radiator 136 and the fifth radiator 137 form an asymmetric dipole antenna, and the distance between the fourth radiator 136 and the fifth radiator 137 can be greater than or equal to 0.8 mm to ensure the isolation between them. Furthermore, the fifth radiator 137 can also act as a reflector for the fourth radiator 136. Thus, high gain performance can be achieved while reducing the cost of the reflector, and the gain can reach more than 15 dBi.
[0053] For example, please continue reading Figure 6 and Figure 7As shown, the first antenna 130d can be configured on the second sub-board 124 as follows: The first antenna 130d includes a sixth radiator 139 and a fourth coaxial cable 1310. The sixth radiator 139 is located on the side of the second sub-board 124 opposite to the first circuit board 110, that is, the sixth radiator 139 and the fourth radiator 136 are located on the same side of the second sub-board 124, and are adjacent to and spaced apart from the fourth radiator 136. For example, the sixth radiator 139 may include a strip and two branches. The strip of the sixth radiator 139 can be perpendicular to the strip of the fourth radiator 136, and to avoid obstruction, the strip of the sixth radiator 139 can be divided into two separate parts. The strip of the fourth radiator 136 passes through the sixth radiator 139, thereby isolating the fourth radiator 136 and the sixth radiator 139. The two branches of the sixth radiator 139 can also be in a stepped form and diverge outwards to meet the requirements of a high-gain antenna. The ground wire of the fourth coaxial cable 1310 is connected to the fifth radiator 137. A connection port can be provided on the fifth radiator 137, and this connection port is different from the port connecting the fifth radiator 137 to the third coaxial cable 138. The core wire of the fourth coaxial cable 1310 is connected to the sixth radiator 139, and this connection can be achieved by providing a port on the sixth radiator 139. That is, the first antenna 130d and the first antenna 130c share the fifth radiator 137, which saves on component placement.
[0054] The sixth radiator 139 and the fifth radiator 137 form an asymmetric dipole antenna. The fifth radiator 137 is located at the bottom of the sixth radiator 139. The two are located on the front and back sides of the second sub-board 124, respectively, with a spacing of 0.8 mm or more to ensure isolation. At the same time, the fifth radiator 137 can also act as a reflector for the sixth radiator 139. This achieves high gain performance and reduces the cost of the reflector. The gain can reach 15 dBi or more.
[0055] It should be noted that the asymmetric dipole first antenna 130c and the asymmetric dipole first antenna 130d are polarized at ±45°. Although they are close to each other, they have good isolation, which can reach -25dB or above.
[0056] In summary, by placing the first antennas 130a and 130b, as well as the first antennas 130c and 130d, on opposite sides of the first circuit board 110, the device can achieve a wide range of 5G SUB 6G high gain effects.
[0057] In other embodiments, four first antennas are disposed on opposite sides of the second circuit board, which can make full use of space and increase isolation. For example, the second circuit board has opposite first and second sides. Of the four first antennas disposed on the second circuit board, two first antennas are disposed on the first side of the second circuit board, and the other two first antennas are disposed on the second side of the second circuit board. To facilitate the placement of the radiators, the second circuit board can be configured as a multi-layered board, which facilitates the placement of the radiators and also improves isolation.
[0058] The remaining four of the eight first antennas 130 can be omnidirectional antennas. At least the remaining four first antennas 130 are distributed on the first circuit board 110, which can be located on the side of the first circuit board 110 where the network interface is located, or on the front of the first circuit board 110. The projection of the second circuit board 120 on the first circuit board 110 is spaced apart from the remaining first antennas 130.
[0059] It should be noted that among the eight first antennas 130 of 5G SUB 6G, taking advantage of the high frequency and small antenna area of the SUB 6G antenna, four omnidirectional first antennas 130 are designed as onboard antennas on the first circuit board 110, realizing low-cost antennas with small space occupation. The four omnidirectional first antennas 130 are placed in different directions of the first circuit board 110, with good isolation.
[0060] Simultaneously, four high-gain first antennas 130 of the 5G SUB 6G are mounted on the second circuit board 120 via brackets 140. First antennas 130a and 130b are polarized at ±45°, as are first antennas 130c and 130d, achieving good isolation. The four omnidirectional antennas and four high-gain antennas constitute an 8×8 MIMO high-capacity, high-gain antenna combination.
[0061] Of course, the antenna assembly 100 in this application embodiment is not limited to the antenna in the above-mentioned frequency band; please continue to refer to [the relevant documentation]. Figures 1 to 3As shown, the antenna assembly 100 may further include at least one second antenna 150, the second antenna 150 operating at a frequency lower than that of the first antenna 130. Each second antenna 150 is bent and connected to the first circuit board 110, and does not overlap with the first circuit board 110. For example, the operating frequency of the second antenna 150 may be in the range of 600MHz to 2700MHz, i.e., 2G, 3G, 4G, and 5G antenna sections. The number of second antennas 150 may be four, and the four second antennas 150 may be respectively arranged at the four corners of the first circuit board 110. To save costs, the four second antennas 150 may be implemented using conventional flexible circuit boards and steel sheet omnidirectional antennas. In related technologies, 2×2 MIMO is generally used for the low frequency band of 600MHz to 960MHz. In this embodiment, four secondary antennas 150 are distributed at the four corners of the first circuit board 110, which can achieve good isolation even at low frequencies. This enables a 4×4 MIMO high-capacity antenna combination in the 600MHz to 2700MHz frequency band, and can be mounted on the housing of the terminal device, saving bracket costs.
[0062] For example, please continue reading Figures 1 to 3 As shown, the antenna assembly 100 also includes at least two third antennas 160. The third antennas 160 can be WIFI antennas, and the type of the third antennas 160 can be omnidirectional antennas. One of the third antennas 160 can be disposed on the first circuit board 110, and the other third antennas 160 can be fixed on the housing of the terminal device.
[0063] For example, there can be three third antennas 160, operating in the frequency bands of 2400MHz to 2500MHz and 5150MHz to 5850MHz. Two of the third antennas 160 can be placed on opposite sides of the first circuit board 110, connected to the board end and the antenna end respectively using coaxial cables. Since the omnidirectional antenna operating in the 5150MHz to 5850MHz frequency band of the third antenna 160 requires little space, it can be directly designed as an onboard antenna on the first circuit board 110, realizing a 3×3 MIMO high-capacity antenna combination.
[0064] In the antenna assembly 100 of this application embodiment, 3×3 MIMO is implemented for 3 WIFI antennas, 4×4 MIMO for 4 2G / 3G / 4G / 5G antennas, and 8×8 MIMO for 8 5G SUB 6G antennas. The multi-MIMO capability of each antenna achieves high capacity. The 8 5G SUB 6G antennas include 4 low-cost onboard antennas and 4 high-gain antennas, achieving high gain while maintaining low cost. The overall solution utilizes a multi-MIMO antenna approach, combining omnidirectional antennas with high-gain antennas, to fully utilize the overall device space—that is, the space on all four sides of the device, the onboard space, and the front and back surfaces—to achieve a low-cost, high-capacity, and high-gain antenna solution.
[0065] Please combine Figures 1 to 7 And see Figure 8 and Figure 9 As shown, Figure 8 This is a schematic diagram of the structure of a terminal device provided in an embodiment of this application. Figure 9 This is another structural schematic diagram of the terminal device provided in this application embodiment. This application embodiment also provides a terminal device 1000, such as a mobile phone, computer, tablet, router, etc. The terminal device 1000 includes an antenna assembly 100 and a housing 200. The antenna assembly 100 is disposed within the housing 200. The structure of the antenna assembly 100 can refer to the above embodiments, and will not be repeated here. Since this terminal device 1000 adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be repeated here.
[0066] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.
[0067] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features.
[0068] The antenna components and terminal devices provided in the embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.
Claims
1. An antenna assembly, characterized in that, include: First circuit board; The second circuit board, the projection of the second circuit board on the first circuit board is located within the first circuit board, and the second circuit board is mounted on at least one side of the first circuit board; At least four first antennas, each of which is a MIMO antenna and operates in the same frequency band, and four of the at least four first antennas are disposed on the second circuit board.
2. The antenna assembly according to claim 1, characterized in that, The second circuit board includes a first sub-board and a second sub-board. The first sub-board is mounted on one side of the first circuit board, and the second sub-board is mounted on the other side of the first circuit board opposite to the first sub-board. The second sub-board is disposed among the four first antennas of the second circuit board, with two first antennas disposed on the first sub-board and the other two first antennas disposed on the second sub-board.
3. The antenna assembly according to claim 2, characterized in that, One of the two first antennas located on the first sub-board includes a first radiator, a second radiator, and a first coaxial line. The first radiator is disposed on one side of the first sub-board away from the first circuit board, and the second radiator is disposed on the other side of the first sub-board opposite to the first radiator. The ground wire of the first coaxial line is connected to the second radiator, and the core wire of the first coaxial line is connected to the first radiator.
4. The antenna assembly according to claim 3, characterized in that, The other first antenna among the two first antennas located on the first sub-board includes a third radiator and a second coaxial line. The third radiator is disposed on a side of the first sub-board away from the first circuit board and is adjacent to and spaced apart from the first radiator. The ground wire of the second coaxial line is connected to the second radiator, and the core wire of the second coaxial line is connected to the third radiator.
5. The antenna assembly according to claim 2, characterized in that, One of the two first antennas located on the second sub-board includes a fourth radiator, a fifth radiator, and a third coaxial line. The fourth radiator is disposed on one side of the second sub-board away from the first circuit board, and the fifth radiator is disposed on the other side of the second sub-board opposite to the fourth radiator. The ground wire of the third coaxial line is connected to the fifth radiator, and the core wire of the third coaxial line is connected to the fourth radiator.
6. The antenna assembly according to claim 5, characterized in that, The other first antenna among the two first antennas located on the second sub-board includes a sixth radiator and a fourth coaxial line. The sixth radiator is disposed on a side of the second sub-board away from the first circuit board and is adjacent to and spaced apart from the fourth radiator. The ground wire of the fourth coaxial line is connected to the fifth radiator, and the core wire of the fourth coaxial line is connected to the sixth radiator.
7. The antenna assembly according to claim 1, characterized in that, The remaining first antennas of the at least four first antennas are distributed on the first circuit board, and the projection of the second circuit board onto the first circuit board is spaced apart from the remaining first antennas; and / or The second circuit board includes a first side and a second side, which are disposed among the four first antennas of the second circuit board, wherein two first antennas are disposed on the first side of the second circuit board and the other two first antennas are disposed on the second side of the second circuit board.
8. The antenna assembly according to claim 7, characterized in that, The antenna assembly further includes at least one second antenna, the second antenna operating at a frequency lower than that of the first antenna, and each second antenna is bent and connected to the first circuit board.
9. A terminal device, characterized in that, It includes a housing and an antenna assembly as described in any one of claims 1 to 8, the antenna assembly being disposed within the housing.
10. The terminal device according to claim 9, characterized in that, The antenna assembly further includes at least two third antennas, one of which is disposed on the first circuit board, and the other third antennas are fixed to the housing.