Integrated antenna and electronic device
Patent Information
- Application Number
- CN202111529016.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-12-14
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2041-12-14
AI Technical Summary
In existing electronic devices, the integration design of GNSS antennas and communication antennas is difficult to miniaturize, and the coupling between the various antennas has a significant impact, leading to design difficulties.
The design employs a split-type structure, with the GNSS antenna wound around the outer perimeter of the base column and the communication antenna mounted on the top cover. The different dielectric constants of the base column and the top cover are used to meet the frequency requirements of their respective antennas. The antennas are protected and concealed by a filling layer and a protective layer, thus achieving efficient use of space.
It achieves an integrated design of GNSS antenna and communication antenna, miniaturizing the design while avoiding mutual interference between antennas, thus improving design flexibility and communication performance.
Smart Images

Figure CN114300827B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of antenna technology, and more particularly to an integrated antenna and electronic device. Background Technology
[0002] With the development of technology, existing electronic devices have incorporated numerous communication systems to support their multi-functionality (such as positioning, network communication, and Bluetooth communication). To achieve positioning, GNSS (Global Navigation Satellite System) high-precision positioning technology is frequently used, requiring a GNSS antenna within the device. Simultaneously, to enable other functions, communication antennas, such as 4G and Bluetooth / Wi-Fi antennas, are also needed. However, to meet the miniaturization requirements of electronic devices, the internal structures need to be miniaturized, for example, by integrating the aforementioned communication antennas into a single unit to reduce their space occupancy. However, due to the different operating frequency bands of the GNSS, 4G, and Bluetooth / Wi-Fi antennas, the coupling between them is significant, making the integration design of the GNSS and communication antennas extremely difficult. Summary of the Invention
[0003] This invention discloses an integrated antenna and electronic device that can achieve the integration of GNSS antenna and communication antenna while meeting the requirements of miniaturization design.
[0004] To achieve the above objectives, a first aspect of the present invention discloses an integrated antenna, comprising:
[0005] A base column having a first end and a second end along its own height direction;
[0006] A top cover, which is connected to the first end, and the side of the top cover facing away from the first end is the first side;
[0007] A GNSS antenna, comprising multiple sets of spiral arms, each set of spiral arms being wound around the outer circumferential surface of the base post and extending spirally from the first end to the second end; and
[0008] A communication antenna is disposed on the first surface.
[0009] As an optional implementation, in an embodiment of the first aspect of the present invention, the communication antenna includes a 4G antenna and a Bluetooth / WIFI antenna; the top cover also includes a second side opposite to the first side, the second side being used to set the grounding module of the communication antenna.
[0010] As an optional implementation, in an embodiment of the first aspect of the present invention, the 4G antenna includes a first stub and a second stub connected to the first stub, the first stub being located at the edge of the first surface, the second stub being located on the side of the first stub facing the center of the first surface, and the portion of the second stub not connected to the first stub having a gap with the first stub.
[0011] As an optional implementation, in an embodiment of the first aspect of the present invention, the 4G antenna further includes a first coupling stub and a second coupling stub, wherein the first coupling stub is connected to the first stub and located between the first stub and the second stub; the second coupling stub is connected to the first stub and located between the first stub and the second stub, and the second coupling stub and the first coupling stub are spaced apart along the extension direction of the first stub.
[0012] As an optional implementation, in an embodiment of the first aspect of the present invention, the first coupling branch includes a first connecting end and a first free end, the first connecting end being connected to the first branch, and the first free end extending along a first direction; the second coupling branch includes a second connecting end and a second free end, the second connecting end being connected to the first branch, the connection position of the second connecting end and the first branch being spaced apart from the connection position of the first connecting end and the first branch, and the second free end extending along a second direction; wherein, the first direction is opposite to the second direction.
[0013] As an optional implementation, in an embodiment of the first aspect of the present invention, the 4G antenna further includes a third branch, which is disposed on the side wall of the top cover and connected to the first branch.
[0014] As an optional implementation, in an embodiment of the first aspect of the present invention, the Bluetooth / WIFI antenna is disposed at the edge of the first surface, the Bluetooth / WIFI antenna is spaced apart from the 4G antenna, and the Bluetooth / WIFI antenna and the 4G antenna are located on the same annular structure along the center of the first surface.
[0015] As an optional implementation, in an embodiment of the first aspect of the present invention, a first boss is provided on the second surface, the first boss surrounding the outer periphery of the grounding module; the first boss includes a first outer side wall and a first surface facing away from the second surface, the first outer side wall having a distance from the outer peripheral surface of the base column, and the first surface abutting against the end face of the first end.
[0016] As an optional implementation, in an embodiment of the first aspect of the present invention, a second protrusion is provided on the first surface, the second protrusion having a second outer side wall, and the base column being a solid column or a hollow column; when the base column is a solid column, a first groove is provided on the end face of the first end of the base column, and the second outer side wall is attached to the inner wall surface of the first groove so that the second protrusion is fitted into the first groove; when the base column is a hollow column, the base column has a cavity, and the second outer side wall is attached to the inner wall surface of the cavity so that the second protrusion is fitted into the cavity.
[0017] As an optional implementation, in an embodiment of the first aspect of the present invention, the inner wall surface is provided with a first limiting member, and the second outer wall surface is provided with a second limiting member corresponding to the first limiting member. The second limiting member is engaged with the first limiting member to limit the top cover.
[0018] As an optional implementation, in an embodiment of the first aspect of the present invention, a second groove is provided at the second end of the base post, the second groove extends from the second end toward the first end, the GNSS antenna has a feed point, the feed point is disposed on the inner wall surface of the second groove, the integrated antenna further includes a circuit board, the circuit board is disposed in the second groove, and the outer peripheral surface of the circuit board abuts against the inner wall surface of the second groove, the circuit board is electrically connected to the feed point.
[0019] As an optional implementation, in an embodiment of the first aspect of the present invention, the integrated antenna further includes a filling layer and a protective layer. The filling layer is disposed on the outer peripheral surface of the base column, the first surface of the top cover, and the side wall surface of the top cover at locations where the GNSS antenna and the communication antenna are not disposed. The filling layer is titanium dioxide. The protective layer is sprayed onto the surfaces of the filling layer, the GNSS antenna, and the communication antenna to cover the filling layer, the GNSS antenna, and the communication antenna. The protective layer is PU paint.
[0020] To achieve the above objectives, in a second aspect, the present invention discloses an electronic device comprising a housing and an integrated antenna as described in the first aspect above, the integrated antenna being disposed inside the housing.
[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:
[0022] The integrated antenna and electronic device provided in this invention achieves miniaturization by winding each helical arm of a GNSS antenna with multiple helical arms around the outer circumference of a base column and extending helically from the first end to the second end of the base column. This achieves the operating frequency requirements of the GNSS antenna while simultaneously enabling miniaturized design. Furthermore, by mounting the communication antenna on a top cover connected to the first end of the base column, existing space can be fully utilized to achieve miniaturized integrated antenna design. Additionally, by mounting the GNSS antenna and communication antenna on the base column and top cover respectively, the dielectric constants of the base column and top cover can be adjusted according to the required operating frequency of each antenna, improving the flexibility and freedom of antenna design. This also effectively avoids mutual interference between antennas, thereby mitigating the problem of severe coupling between multiple antennas. This achieves integrated design of multiple antennas while meeting the requirements of antenna miniaturization. Attached Figure Description
[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0024] Figure 1 This is a three-dimensional structural diagram of the integrated antenna provided in this embodiment;
[0025] Figure 2A This is an exploded structural diagram of the top cover and base of the integrated antenna provided in this embodiment;
[0026] Figure 2B for Figure 1 Sectional view along direction A;
[0027] Figure 3 This is a schematic diagram of the filling layer and protective layer of the integrated antenna provided in this embodiment;
[0028] Figure 4 This is a three-dimensional structural diagram of the integrated antenna (with a filling layer and a protective layer) provided in this embodiment;
[0029] Figure 5 This is a cross-sectional view of the top cover and hollow base column provided in this embodiment;
[0030] Figure 6 This is a cross-sectional structural diagram of the top cover and solid base column provided in this embodiment;
[0031] Figure 7 for Figure 6 The large image of part D is now open;
[0032] Figure 8 This is a schematic diagram of the top cover and communication antenna provided in this embodiment;
[0033] Figure 9 This is a bottom view of the top cover and communication antenna provided in this embodiment;
[0034] Figure 10 This is a schematic diagram of the structure of the 4G antenna provided in this embodiment;
[0035] Figure 11 This is a partial exploded structural diagram of the integrated antenna provided in this embodiment;
[0036] Figure 12 This is a cross-sectional view of the integrated antenna provided in this embodiment;
[0037] Figure 13 for Figure 12 The large image of part E is now open;
[0038] Figure 14 This embodiment provides a passive gain curve diagram of an integrated antenna for a GNSS antenna.
[0039] Figure 15 A passive gain curve of a 4G antenna with an integrated antenna provided in this embodiment;
[0040] Figure 16 An S11 curve diagram of an integrated antenna for a Bluetooth / WiFi antenna provided in this embodiment;
[0041] Figure 17 A passive gain curve of a GNSS antenna for another integrated antenna provided in this embodiment;
[0042] Figure 18 This is a schematic diagram of the electronic device provided in this embodiment.
[0043] Icons: 1. Base post; 11. First end; 111. First groove; 12. Second end; 121. Second groove; 12a. First inner wall surface; 12b. Third limiting component; 13. Outer peripheral surface; 14. Cavity; 15. Inner wall surface; 151. First limiting component; 2. Top cover; 21. First surface; 22. Second surface; 23. Side wall surface; 24. First boss; 240. Accommodation space; 241. First outer wall; 242. First surface; 25. Second boss; 251. Second outer wall; 25a. Second limiting component; 3. GNSS antenna; 31. First spiral arm; 32. Second spiral arm; B. First point; C. Second point; BO. First side; CO. Second side; 33. Third feed point; 34. Third short circuit point; 4. Communication antenna; 40. Connector Ground module; 41, 4G antenna; 411, first branch; 41a, main branch; 41b, connecting branch; 412, second branch; 413, first feed point; 414, first short-circuit point; 415, third branch; 416, first coupling branch; 41c, first connection end; 41d, first free end; 417, second coupling branch; 41e, second connection end; 41f, second free end; 42, Bluetooth / WIFI antenna; 421, radiating branch; 422, feed branch; 42a, second feed point; 423, short-circuit branch; 42b, second short-circuit point; 51, filling layer; 52, protective layer; 6, circuit board; 61, first outer peripheral surface; 61a, fourth limiting component; 100, integrated antenna; 200, electronic device; 210, housing. Detailed Implementation
[0044] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0045] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing the invention and its embodiments, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to be constructed and operated in a specific orientation.
[0046] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in certain situations to indicate a dependency or connection. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.
[0047] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.
[0048] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.
[0049] The technical solution of the present invention will be further described below with reference to the embodiments and accompanying drawings.
[0050] Please see Figure 1 , Figure 2A , Figure 2B This embodiment provides an integrated antenna 100, which includes a base 1, a top cover 2, a multi-arm GNSS antenna 3, and a communication antenna 4. The base 1 has a [missing information - likely a vertical axis or cross-section] along its own height direction (e.g., [missing information - likely a vertical axis or cross-section]). Figure 1 The first end 11 and the second end 12 in the Z direction of the base column 1 are provided with a GNSS antenna 3 on the outer peripheral surface 13 of the base column 1. The GNSS antenna 3 includes multiple sets of spiral arms, and each set of spiral arms of the GNSS antenna 3 is wound around the outer peripheral surface 13 of the base column 1 and spirally extends from the first end 11 of the base column 1 to the second end 12. At the same time, a top cover 2 is connected to the first end 11 of the base column 1. The side of the top cover 2 that is away from the first end 11 is the first surface 21, and a communication antenna 4 is provided on the first surface 21.
[0051] By mounting the GNSS antenna 3 and the communication antenna 4 on the base column 1 and the top cover 2 respectively, signal isolation between the GNSS antenna 3 and the communication antenna 4 can be achieved, effectively avoiding signal coupling interference between them. This allows for integrated design of the GNSS antenna 3 and the communication antenna 4, increasing the design flexibility of the integrated antenna 100. Furthermore, since the base column 1 and the top cover 2 of the integrated antenna 100 are separate designs, the design work of mounting the GNSS antenna 3 on the base column 1 and the communication antenna 4 on the top cover 2 can be carried out separately, allowing for independent verification experiments. In other words, the separate design increases the design freedom of the GNSS antenna 3 and the communication antenna 4. On the other hand, by mounting the GNSS antenna 3 on the outer peripheral surface 13 of the base column 1 and using the first surface 21 of the top cover 2 to mount the communication antenna 4, without the need for an additional structure to support the communication antenna 4, efficient use of existing space can be achieved, thereby meeting the miniaturization design requirements of the integrated antenna 100.
[0052] Furthermore, the split design allows the top cover 2 and the base column 1 to adjust the dielectric constant of their respective materials according to the needs of the antennas mounted on them, thereby meeting the performance requirements of their respective antennas. Specifically, the base column 1 can be made of a dielectric material with a low dielectric constant and low loss, such as a dielectric material with a dielectric constant of 2.3 to 2.7, to meet the bandwidth and gain requirements of the GNSS antenna 3; while the top cover 2 can be made of a dielectric material with a high dielectric constant and low loss, such as a dielectric material with a dielectric constant of 5.5 to 7, to meet the bandwidth and gain requirements of the communication antenna 4. This allows the integrated antenna 100 to meet the miniaturization design requirements while also satisfying the performance requirements of the GNSS antenna 3 and the communication antenna 4, thereby improving the communication performance of the GNSS antenna 3 and the communication antenna 4.
[0053] It is understood that the aforementioned communication antenna 4 can be a 4G antenna, a 5G antenna, a Bluetooth / WIFI antenna, or other communication antennas. The type of communication antenna 4 can be selected according to the needs of the application scenario of the integrated antenna 100. One type of communication antenna 4 can be set on the first surface 21 of the top cover 2, or it can be a combination of two or more communication antennas 4 to meet the application requirements. In this embodiment, the type and quantity of communication antenna 4 are not specifically limited.
[0054] In addition, the GNSS antenna 3, which is set on the outer peripheral surface 13 of the base column 1, is provided with multiple sets of spiral arms. The number of spiral arms of the GNSS antenna 3 can be adjusted according to the actual situation. In this embodiment, the structure of the GNSS antenna 3 on the base column 1 is introduced by taking the GNSS antenna 3 with four sets of spiral arms, namely the four-arm spiral GNSS antenna 3, as an example.
[0055] Specifically, each set of spiral arms of the GNSS antenna 3 includes a first spiral arm 31 and a second spiral arm 32. The first spiral arm 31 and the second spiral arm 32 are spirally wound around the outer peripheral surface 13 of the base post 1. The first spiral arm 31 can be the feed arm of the GNSS antenna 3, which mainly controls the high-frequency resonance of the GNSS antenna 3, that is, the resonance of the GNSS antenna 3 in the range of 1525 to 1615 MHz. The second spiral arm 32 can be the coupling arm of the GNSS antenna 3, which mainly controls the low-frequency resonance of the GNSS antenna 3, that is, the resonance of the GNSS antenna 3 in the range of 1165 to 1300 MHz. The first spiral arm 31 and the second spiral arm 32 are wound alternately around the outer peripheral surface 13 of the base post 1, with a gap between them. In a cross-section of the base post 1 taken with a plane parallel to the first surface 21, that is, as shown... Figure 2B As shown, the first helical arm 31 and the second helical arm 32 are positioned at points B and C on the cross section, respectively. Point B is connected to the center O of the cross section to form the first side BO, and point C is connected to the center O to form the second side CO. The first side BO and the second side CO form an angle α, which can be between 45° and 75°, to ensure a suitable spacing between the first helical arm 31 and the second helical arm 32 wound on the outer circumferential surface 13 of the base column 1. If the spacing is too large, i.e., α is too large, it will lead to impedance mismatch between the first helical arm 31 and the second helical arm 32, resulting in low energy transfer efficiency. If the spacing is too small, i.e., α is too small, it will increase signal interference between the first helical arm 31 and the second helical arm 32, leading to a decrease in the performance of the GNSS antenna 3. Meanwhile, the first spiral arm 31 and the second spiral arm 32 are of equal length, and the first spiral arm 31 and the second spiral arm 32 can be connected at the first end 11 of the base column 1 or at the second end 12 of the base column 1 to form a set of spiral arms of the GNSS antenna, so as to expand the bandwidth of the GNSS antenna 3 and thus meet the operating frequency requirements of the GNSS antenna 3.
[0056] In some embodiments, please refer to Figure 3 , Figure 3 This is a partial structural cross-sectional view of the outer peripheral surface 13 of the base column 1 after unfolding. To protect the GNSS antenna 3 and communication antenna 4 on the integrated antenna 100, a filling layer 51 and a protective layer 52 are also provided on the surface of the integrated antenna 100. The filling layer 51 fills the positions on the outer peripheral surface 13 of the base column 1, the first surface 21 of the top cover 2, and the side wall surface 23 of the top cover 2 where the GNSS antenna 3 and communication antenna 4 are not installed, so as to fill the uneven surface formed after the installation of the GNSS antenna 3 and communication antenna 4. Figure 3The diagram illustrates the layered state of a filling layer 51 and a protective layer 52 on the outer peripheral surface 13 of the base column 1 after the GNSS antenna 3 is installed. Specifically, the filling layer 51 can be titanium dioxide, which, without affecting the signal strength of the GNSS antenna 3, fills the outer peripheral surface 13 of the base column 1, the first surface 21 of the top cover 2, and the sidewall surface 23 of the top cover 2. Simultaneously, the titanium dioxide can reinforce the structure of the GNSS antenna 3 and the communication antenna 4, effectively preventing aging of the GNSS antenna 3 and the communication antenna 4. After filling the filling layer 51, a protective layer 52 needs to be sprayed onto the outer surfaces of the filling layer 51 and the outer surfaces of the GNSS antenna 3 and the communication antenna 4 to achieve comprehensive protection for the GNSS antenna 3 and the communication antenna 4. For example, the protective layer 52 can be PU paint, as the dielectric constant of PU paint is similar to that of the dielectric materials of the top cover 2 and the base column 1, effectively reducing losses. For example, see reference... Figure 4 , Figure 4 The surface effect after setting the filling layer 51 and protective layer 52 on the integrated antenna 100. The filling layer 51 and protective layer 52 can cover the surface of the GNSS antenna 3 and the communication antenna 4, thereby protecting the GNSS antenna 3 and the communication antenna 4 and hiding the circuit. At the same time, by setting the filling layer 51 and protective layer 52 on the integrated antenna 100, the design of the antenna protective cover can be replaced, thereby reducing the weight of the integrated antenna 100 and helping to achieve miniaturization of the integrated antenna 100.
[0057] Please refer to the following: Figure 5 and Figure 6 In some embodiments, the base post 1 can be cylindrical. Using a cylindrical base post 1 can reduce the impact of the base post 1 on the GNSS antenna 3 wound around its outer peripheral surface 13, effectively preventing significant bending of the GNSS antenna 3 when wound on the base post 1, thus protecting the GNSS antenna 3. Specifically, the base post 1 can be a solid base post or a hollow base post. When the base post 1 is hollow, it can be a hollow cylindrical column, thereby reducing the impact of the base post 1 on the overall weight of the integrated antenna 100, thus achieving a lightweight design of the integrated antenna 100. When the base post 1 is solid, it can be a solid cylindrical column, thereby strengthening the overall structure of the base post 1 and preventing it from easily deforming or being damaged under external forces. It is understood that in other embodiments, the base column 1 may also be a column with an elliptical or rectangular cross-section, and the base column 1 may be a solid base column or a hollow base column. Its specific structural form can be selected according to actual needs and is not limited in this embodiment.
[0058] Please combine Figures 6 to 9As shown in some embodiments, as previously described, the top cover 2 is connected to the first end 11 of the base column 1. Therefore, when the base column 1 is cylindrical, the top cover 2 can also be a circular top cover. Specifically, in addition to the first surface 21 mentioned above, the top cover 2 also includes a second surface 22 opposite to the first surface 21. The second surface 22 can be used to connect the base column 1 and can also be used to set the grounding module 40 for grounding the communication antenna 4. Setting the grounding module 40 on the second surface 22 of the top cover 2 can make full use of the larger area of the second surface 22 to obtain a larger grounding module 40, thereby improving the signal transmission and reception effect of the communication antenna 4 and preventing signal interference to the communication antenna 4.
[0059] Optionally, the grounding module 40 can be a metal sheet or other conductive material to conduct signals to the communication antenna 4. Meanwhile, the shape of the grounding module 40 can be adjusted according to actual needs. In this embodiment, the shape and material of the grounding module 40 are not specifically limited.
[0060] Furthermore, a first protrusion 24 is provided on the second surface 22 of the top cover 2. The first protrusion 24 surrounds the outer periphery of the grounding module 40. In this case, the first protrusion 24 can play a certain protective role for the grounding module 40 and prevent the grounding module 40 from colliding with other structures. Specifically, the first protrusion can be an annular protrusion. The first protrusion 24 includes a first outer side wall 241 and a first surface 242 facing away from the second surface 22. There is a gap between the first outer side wall 241 and the outer peripheral surface 13 of the base column 1. That is, the outer diameter of the first protrusion is smaller than the outer diameter of the base column, and the first surface 242 abuts against the end face of the first end 11. When the top cover 2 is connected to the first end 11, the first surface 242 can abut against the end face of the first end 11. On the one hand, this can limit the top cover 2 in the height direction Z of the base column 1. On the other hand, since there is a gap between the first outer wall 241 and the outer peripheral surface 13, an accommodating space 240 is formed at the connection position between the top cover 2 and the first end 11. Since the top cover 2 and the base column 1 need to be glued together, this accommodating space 240 can provide a space for glue injection when the top cover 2 and the base column 1 are connected. This can effectively prevent the glue from flowing to the outer peripheral surface 13 of the base column 1. In the case of achieving the connection between the top cover 2 and the base column 1, the influence of the glue on the GNSS antenna 3 on the outer peripheral surface 13 of the base column 1 can be minimized.
[0061] In some embodiments, a second boss 25 is provided on the first surface 242. This second boss can be an annular boss, and it has a second outer sidewall 251. As described above, the base column 1 can be a solid column or a hollow column. For example,... Figure 5As shown, when the base column 1 is designed as a hollow column, the base column 1 has a cavity 14. When the top cover 2 is connected to the first end 11, the second outer side wall 251 can fit against the inner wall surface 15 of the cavity 14, and the second protrusion 25 is fitted into the cavity 14. By fitting the second protrusion 25 into the cavity 14, the initial connection between the top cover 2 and the first end 11 can be achieved, so as to facilitate the subsequent bonding between the top cover 2 and the first end 11.
[0062] In another example, such as Figure 6 As shown, when the base column 1 is a solid column, a first groove 111 is provided on the end face of the first end 11 of the base column 1. When the top cover 2 is connected to the first end 11, the second outer side wall 251 can fit against the inner wall surface 15 of the first groove 111, and the second protrusion 25 is fitted into the first groove 111. By fitting the second protrusion 25 into the first groove 111, the initial connection between the top cover 2 and the first end 11 can be achieved, so as to facilitate the subsequent bonding between the top cover 2 and the first end 11.
[0063] Furthermore, regardless of whether the base column 1 is a hollow or solid base column, when the base column 1 is connected to the second protrusion 25 of the top cover 2, in order to prevent the top cover 2 from moving relative to the base column 1 in the circumferential direction, a first limiting component 151 is provided on the inner wall surface 15, and a second limiting component 25a corresponding to the first limiting component 151 is provided on the second outer wall 251. The second limiting component 25a is engaged with the first limiting component 151 to limit the connection of the top cover 2 at the first end 11, prevent the top cover 2 from rotating with the base column 1, and thus improve the connection stability between the top cover 2 and the base column 1.
[0064] Specifically, the first limiting component 151 is a protrusion, and the second limiting component 25a is a groove. The engagement of the first limiting component 151 and the second limiting component 25a is achieved through the cooperation of the protrusion and the groove. Furthermore, there can be one or more first limiting components 151, and correspondingly, the number of second limiting components 25a should be the same as the number of first limiting components 151. Alternatively, the first limiting component 151 can also be a groove, and the second limiting component 25a can be a protrusion, which also achieves the engagement of the first limiting component 151 and the second limiting component 25a. It is understood that the shape, structure, and number of the first limiting component 151 and the second limiting component 25a can be selected according to actual needs, and are not specifically limited in this embodiment.
[0065] Please refer to the following: Figures 9 to 11In some embodiments, the communication antenna 4 includes a 4G antenna 41 and a Bluetooth / WIFI antenna 42, and the 4G antenna 41 and the Bluetooth / WIFI antenna 42 are spaced apart on the first surface 21 to achieve the multi-functionality of the integrated antenna 100. At the same time, the 4G antenna 41 and the Bluetooth / WIFI antenna 42 are grounded through the grounding module 40 of the second surface 22 to meet the working conditions of the 4G antenna 41 and the Bluetooth / WIFI antenna 42.
[0066] The 4G antenna 41 includes a first stub 411 and a second stub 412. The first stub 411 and the second stub 412 are connected to form the low-frequency resonance of the 4G antenna 41, that is, the resonance of the 4G antenna 41 in the resonant frequency range of 840 to 960 MHz. The first stub 411 is located at the edge of the first surface 21. At this time, regardless of the shape of the first surface 21, placing the first stub 411 at the edge of the first surface 21 can provide the first stub 411 with a larger installation space, thereby obtaining the longest possible first stub 411. Especially when the first surface 21 is a circular surface, the first stub 411 located at the edge can have sufficient length and area for arrangement, thereby obtaining a sufficiently long first stub 411 to achieve the oscillation frequency of the low-frequency resonance of the 4G antenna 41. Meanwhile, the second branch 412 is located on the side of the first branch 411 facing the center of the first surface 21. The part of the second branch 412 that is not connected to the first branch 411 has a gap with the first branch 411. By setting the second branch 412 at the position of the first branch 411 facing the center of the first surface 21, when the setting space of the first surface 21 is limited and the length of the first branch 411 that can be accommodated by the edge of the first surface 21 is insufficient, the wiring is extended towards the center of the first surface 21, and the length of the first branch 411 is supplemented by the second branch 412 to meet the oscillation frequency required for low-frequency resonance.
[0067] Specifically, the first branch 411 includes a main branch 41a and connecting branches 41b connecting the two ends of the main branch 41a. The first branch 411 is connected to the two ends of the second branch 412 through the connecting branches 41b at both ends, so as to realize the signal conduction between the first branch 411 and the second branch 412. At the same time, due to the presence of the connecting branches 41b, there is a gap between the main branch 41a and the second branch 412. When the sum of the lengths of the first branch 411 and the second branch 412 can reach the oscillation frequency required for low-frequency resonance, the gap between the first branch 411 and the second branch 412 can provide design space for the structure of other parts of the 4G antenna 41, so as to meet the performance requirements of the 4G antenna 41 within the limited design space.
[0068] Furthermore, in order to meet the performance requirements of the 4G antenna 41, a first feed point 413 and a first short-circuit point 414 are provided on the second branch 412, and the first feed point 413 and the first short-circuit point 414 are spaced apart in the extension direction of the second branch 412. At the same time, the first feed point 413 is connected to the second surface 22 through a metallized fine hole, and feed welding is performed on the second surface 22 to feed the 4G antenna 41; the first short-circuit point 414 is connected to the grounding module 40 of the second surface 22 through a metallized hole to realize the grounding connection of the 4G antenna 41. When the first feed point 413 and the first short-circuit point 414 are set on the second branch 412, they can be connected to the second surface 22 through the metallized holes. Since the second branch 412 is closer to the center than the first branch 411, when the first feed point 413 and the first short-circuit point 414 are set on the second branch 412, their positions are also closer to the center. At this time, it is more convenient to make feed and ground connections on the second surface 22 than at the edge, which can reduce the wiring difficulty of the 4G antenna 41.
[0069] In some embodiments, the 4G antenna 41 further includes a third branch 415, which is disposed on the side wall 23 of the top cover 2 and connected to the main branch 41a of the first branch 411, and the length of the third branch 415 is equal to the length of the main branch 41a. The third branch 415 can control the low-frequency bandwidth of the 4G antenna 41, thereby adjusting the width of the third branch 415 on the side wall 23 to obtain a low-frequency bandwidth suitable for the 4G antenna 41.
[0070] In some embodiments, the 4G antenna 41 further includes a first coupling branch 416 and a second coupling branch 417 disposed between the first branch 411 and the second branch 412. The first coupling branch 416 and the second coupling branch 417 are connected to the main branch 41a of the first branch 411. In order to meet the performance requirements of the 4G antenna 41, the first coupling branch 416 and the second coupling branch 417 are respectively the intermediate frequency coupling branch (i.e., the coupling branch that controls the 4G antenna to resonate in the resonant frequency range of 1800 to 2400 MHz) and the high frequency coupling branch of the 4G antenna 41. The first coupling stub (i.e., the coupling stub that controls the 4G antenna to resonate in the frequency range of 2600-2700MHz) is positioned between the first coupling stub 411 and the second coupling stub 412. This effectively controls the distance between the first stub 411, the second stub 412 and the first coupling stub 416, the second coupling stub 417, thereby improving the energy transfer efficiency between the first stub 411, the second stub 412 and the first coupling stub 416, the second coupling stub 417, resulting in better resonance performance of the 4G antenna 41.
[0071] Specifically, the first coupling branch 416 includes a first connecting end 41c and a first free end 41d. The first connecting end 41c is connected to the main branch 41a. The second coupling branch 417 includes a second connecting end 41e and a second free end 41f. The second connecting end 41e is connected to the main branch 41a. Since the second branch 412 is provided with a first feed point 413 and a first short circuit point 414, in order to reduce the influence of the first feed point 413 and the first short circuit point 414 on the first coupling branch 416 and the second coupling branch 417, the first connecting end 41c and the second connecting end 41e are connected to the main branch 41a. In this way, by increasing the distance between the first connecting end 41c, the second connecting end 41e and the first feed point 413 and the first short circuit point 414, the influence of the first feed point 413 and the first short circuit point 414 on the first coupling branch 416 and the second coupling branch 417 can be reduced. Furthermore, since the first coupling stub 416 is a mid-frequency coupling stub and the second coupling stub 417 is a high-frequency coupling stub, the required oscillation frequency for the mid-frequency coupling stub is lower than that for the high-frequency coupling stub. Therefore, the length of the first free end 41d is greater than the length of the second free end 41f. To reduce the coupling effect between the first coupling stub 416 and the second coupling stub 417, the first connecting end 41c and the second connecting end 41e are spaced apart along the extension direction of the main stub 41a. In this case, the first free end 41d and the second free end 41f can extend in the same direction or in different directions.
[0072] For example, such as Figure 10 As shown, the first direction is Figure 10 The direction indicated by arrow X is clockwise, centered on the center of the first surface 21; the second direction is... Figure 10 The direction indicated by arrow Y is counterclockwise with the center of the first surface 21 as the center. The first direction X and the second direction Y are opposite directions. The first free end 41d and the second free end 41f can extend in the same direction, that is, they can both extend along the first direction X or both extend along the second direction Y, and so on. Figure 10 As shown in (a), when the distance between the first branch 411 and the second branch 412 is sufficient, the first free end 41d and the second free end 41f can be disposed on different circumferences of the first surface 21 and extend in the same direction, such as the second direction Y.
[0073] In another example, such as Figure 10 As shown in (b), when the distance between the first branch 411 and the second branch 412 is insufficient, the first free end 41d and the second free end 41f can be disposed on the same circumference of the first surface 21 and extend in the same direction, the second direction Y.
[0074] In another example, such as Figure 10As shown in (c), the first free end 41d and the second free end 41f can extend in different directions. That is, the first free end 41d extends along the first direction X, and the second free end 41f extends along the second direction Y. When the distance between the first branch 411 and the second branch 412 is insufficient, the first free end 41d and the second free end 41f can be located on the same circumference of the first surface 21. It is understood that the above-mentioned arrangement of the first coupling branch 416 and the second coupling branch 417 between the first branch 411 and the second branch 412 are only examples. In specific designs, adjustments can be made according to actual needs. No specific restrictions are imposed in this embodiment.
[0075] In the arrangement of the first coupling branch 416 and the second coupling branch 417 between the first branch 411 and the second branch 412, it is preferable to arrange the first free end 41d to extend along the first direction X and the second free end 41f to extend along the second direction Y. When the first free end 41d and the second free end 41f extend in different directions, the distance between the first coupling branch 416 and the second coupling branch 417 can be made larger in a limited space, thereby reducing the coupling effect between the first coupling branch 416 and the second coupling, thereby improving the oscillation performance of the 4G antenna 41 and reducing the difficulty of subsequent verification and adjustment design of the 4G antenna 41.
[0076] Please refer to it again. Figure 8In some embodiments, the Bluetooth / WIFI antenna 42 is disposed at the edge of the first surface 21, and the Bluetooth / WIFI antenna 42 and the 4G antenna 41 are spaced apart. Furthermore, the Bluetooth / WIFI antenna 42 and the 4G antenna 41 are disposed on the same annular structure along the center of the first surface 21 to reduce the coupling effect between them. Specifically, the Bluetooth / WIFI antenna 42 includes a radiating stub 421, a feeding stub 422, and a short-circuit stub 423. The radiating stub 421 is disposed at the edge of the first surface 21 so that the distance between the radiating stub 421 and the first stub 411 and the second stub 412 is sufficiently large, thereby reducing mutual signal interference. Feeding stub 422 and short-circuit stub 423 are connected to radiating stub 421 and extend toward the center of the first surface 21. A second feeding point 42a and a second short-circuit point 42b are provided at the ends of feeding stub 422 and short-circuit stub 423 opposite to radiating stub 421. The second feeding point 42a is connected to the second surface 22 through a metallized hole and is fed by welding on the second surface 22 to feed the Bluetooth / WIFI antenna 42. The second short-circuit point 42b is connected to the grounding module 40 of the second surface 22 through a metallized hole to realize the grounding connection of the Bluetooth / WIFI antenna 42. When the second feed point 42a and the second short-circuit point 42b are located at the ends of the feed stub 422 and the short-circuit stub 423, the second feed point 42a and the second short-circuit point 42b can be connected to the second surface 22 through the metallized holes. Since the ends of the feed stub 422 and the short-circuit stub 423 are closer to the center, when the second feed point 42a and the second short-circuit point 42b are located at the ends of the feed stub 422 and the short-circuit stub 423, the positions of the second feed point 42a and the second short-circuit point 42b are also closer to the center. At this time, it is more convenient to make feed connections and grounding connections on the second surface 22 than at the edge, which can reduce the wiring difficulty of the Bluetooth / WIFI antenna 42.
[0077] Please see Figures 11 to 13In some embodiments, to power the GNSS antenna 3 of the base post 1, the integrated antenna 100 also includes a circuit board 6. The circuit board 6 may be a multipath suppression board, and a passive band-stop filter is designed on the circuit board 6 to reduce the influence of the Bluetooth / WIFI antenna 42 on the GNSS antenna 3. Specifically, a second groove 121 is provided at the second end 12 of the base post 1, extending from the second end 12 toward the first end 11. The circuit board 6 is disposed within the second groove 121, with its first outer peripheral surface 61 abutting against the first inner wall surface 12a of the second groove 121. The circuit board 6 is electrically connected to the GNSS antenna 3 to power the GNSS antenna 3. By placing the circuit board 6 in the second groove 121, the existing space of the base post 1 can be used to accommodate the circuit board 6. That is, the integrated antenna 100 does not need to set up an additional structure to accommodate the circuit board 6, which facilitates the miniaturization design of the integrated antenna 100. At the same time, placing the circuit board 6 at the second end 12 of the base post 1 facilitates the electrical connection between the GNSS antenna 3 and the circuit board 6, which makes the structural design of the integrated antenna 100 more reasonable.
[0078] Specifically, as described above, the base post 1 can be a solid base post or a hollow base post. When the base post 1 is a solid base post, the second groove 121 can be disposed on the end face of the second end 12 of the base post 1. When the base post 1 is a hollow base post, the second groove 121 can be disposed on the inner wall surface 15 of the cavity 14 of the base post 1 and surround the circumference of the inner wall surface 15, that is, the second groove 121 is an annular groove. It can be seen that, regardless of whether the base post 1 is a hollow base post or a solid base post, when setting the circuit board 6, the circuit board 6 is placed in the second groove 121 of the base post 1, thereby reducing the increase in the thickness of the integrated antenna 100 in the height direction and realizing the miniaturization design of the integrated antenna 100.
[0079] Furthermore, a third limiting component 12b is provided on the first inner wall surface 12a of the second groove 121, and a fourth limiting component 61a corresponding to the third limiting component 12b is provided on the first outer peripheral surface 61 of the circuit board 6. The fourth limiting component 61a is engaged with the third limiting component 12b to limit the connection of the circuit board 6 at the second end 12, prevent the circuit board 6 from rotating with the base post 1, and thus improve the connection stability between the circuit board 6 and the base post 1.
[0080] Specifically, the third limiting component 12b is a protrusion, and the fourth limiting component 61a is a groove. The engagement of the third limiting component 12b and the fourth limiting component 61a is achieved through the cooperation of the protrusion and the groove. Furthermore, there can be one or more third limiting components 12b, and correspondingly, the number of fourth limiting components 61a should be the same as the number of third limiting components 12b. Alternatively, the third limiting component 12b can also be a groove, and the fourth limiting component 61a can be a protrusion, which also achieves the engagement of the third limiting component 12b and the fourth limiting component 61a. It is understood that the shape, structure, and number of the third limiting component 12b and the fourth limiting component 61a can be selected according to actual needs, and are not specifically limited in this embodiment.
[0081] In some embodiments, the electrical connection between the circuit board 6 and the GNSS antenna 3 is mainly achieved by connecting the circuit board 6 to the feed point of the GNSS antenna 3. Specifically, the GNSS antenna 3 has a third feed point 33 and a third short-circuit point 34. The third feed point 33 is located at the end of the second end 12 of the first helical arm 31 on the outer peripheral surface 13 of the base post 1, and the third short-circuit point 34 is located at the end of the second end 12 of the second helical arm 32 on the outer peripheral surface 13 of the base post 1. The third feed point 33 and the third short-circuit point 34 of the GNSS antenna 3 are located at the second end 12 of the base post 1. The third feed point 33 and the third short-circuit point 34 are connected to the first inner wall surface 12a of the base post 1 through metallized holes, and are simultaneously electrically connected to the first outer peripheral surface 61 of the circuit board 6, so as to realize the feed connection and ground connection of the circuit board 6 to the GNSS antenna 3.
[0082] To demonstrate the performance of the integrated antenna 100 provided in this embodiment, the following example uses an integrated antenna 100 structure with a dielectric constant of 2.65, a height of 70mm, a hollow structure with a wall thickness of 1.5mm, a dielectric constant of 5.5 for the top cover 2, and a dimension of 6mm in the Z-direction of the height of the base 1, and the communication antenna 4 consisting of a 4G antenna 41 and a Bluetooth / WIFI antenna, to verify the performance of the integrated antenna 100:
[0083] Figure 14 The passive gain curves for GNSS antenna 3 of the aforementioned integrated antenna show that, in the frequency range of 1.16-1.28 GHz, the gain of GNSS antenna 3 is greater than 1 dBi, with a maximum gain of 2.4 dBi. In the frequency range of 1.53-1.62 GHz, the gain of GNSS antenna 3 is greater than 3.2 dBi, with a maximum gain of 4.5 dBi. This demonstrates that GNSS antenna 3 achieves full-band coverage in both frequency bands.
[0084] Figure 15The passive gain curve of the 4G antenna 41 of the above-mentioned integrated antenna shows that in the low frequency range of 840-960MHz, the gain of the 4G antenna 41 is greater than -6.0dBi, with a maximum gain of -2.0dBi; in the mid frequency range of 1800-2400MHz, the gain of the 4G antenna 41 is greater than -6.0dBi, with a maximum gain of -2.0dBi; and in the high frequency range of 2600-2900MHz, the gain of the 4G antenna 41 is greater than -1.0dBi, with a maximum gain of 0.5dBi. In addition, the 4G antenna 41 has no resonance in the navigation frequency range (navigation L2 band: 1.16-1.3GHz, navigation L1 band: 1.52-1.62GHz) (the gain of the 4G antenna 41 is less than -11dBi in the navigation L2 band and less than -6dBi in the navigation L1 band). The gain of the 4G antenna 41 is less than -6dBi in all cases, resulting in low efficiency, in order to further reduce the impact of the 4G antenna 41 on the GNSS antenna 3.
[0085] Figure 16 The S11 curve of the dual-band Bluetooth / WIFI antenna 42 of the aforementioned integrated antenna shows that, within the ranges of 2410-2480MHz and 5100-5400MHz, the S11 of the Bluetooth / WIFI antenna 42 is less than or equal to -10dB (VSWR (Voltage Standing Wave Ratio) ≤ 2), satisfying the data transmission function of dual-band over a distance of 150m. To suppress the secondary frequency division of the Bluetooth / WIFI antenna 42, circuit board 6 is a multipath suppression board, and a 1.2-1.245GHz passive band-stop filter is designed on circuit board 6 to reduce the impact of the Bluetooth / WIFI antenna 42 on the GNSS antenna 3.
[0086] Figure 17 The passive gain curve for another integrated antenna, GNSS antenna 3, shows that in the frequency range of 1.16-1.28 GHz, the gain of GNSS antenna 3 is greater than 1 dBi, with a maximum gain of 3.4 dBi. In the frequency range of 1.53-1.62 GHz, the gain of GNSS antenna 3 is greater than 2 dBi, with a maximum gain of 3.4 dBi. This demonstrates that GNSS antenna 3 achieves full-band coverage in both frequency bands.
[0087] That is, the above Figures 14 to 17 The curve results show that the integrated antenna 100 provided in this embodiment can achieve the integrated design of GNSS antenna 3, 4G antenna 41 and Bluetooth / WIFI antenna 42 while meeting the requirements of miniaturization design. It can also reduce the mutual interference between GNSS antenna 3, 4G antenna 41 and Bluetooth / WIFI antenna 42, so that GNSS antenna 3, 4G antenna 41 and Bluetooth / WIFI antenna 42 can achieve good working performance.
[0088] The integrated antenna 100 provided in this embodiment designs the base column 1 and the top cover 2 as a separate structure, and sets the GNSS antenna 3 and the communication antenna 4 on the base column 1 and the top cover 2 respectively, so as to set more antennas in a limited space. At the same time, the separate design of the base column 1 and the top cover 2 allows the GNSS antenna 3 and the communication antenna 4 to be designed and verified separately, improving the design flexibility and freedom of the GNSS antenna 3 and the communication antenna 4. Then, the base column 1 and the top cover 2 with the GNSS antenna 3 and the communication antenna 4 are connected to realize the integrated design of the antenna.
[0089] Please see Figure 18 This embodiment also provides an electronic device 200, which includes a housing 210 and the aforementioned integrated antenna 100. The integrated antenna 100 is disposed inside the housing 210. By providing the integrated antenna 100 on the electronic device 200, the miniaturization of the electronic device 200 can be achieved while satisfying the needs of the electronic device 200 for receiving and outputting antenna signals, thereby meeting the user's demand for miniaturization of the electronic device 200. It is understood that the electronic device may include, but is not limited to, mobile phones, tablets, laptops, and smart wearable devices (smartwatches, smart bracelets), etc., providing high-precision positioning and 4G, Bluetooth / WIFI signals for the electronic device while achieving miniaturization, thereby improving the user experience of the electronic device.
[0090] The integrated antenna and electronic device disclosed in the embodiments of the present invention have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only for the purpose of helping to understand the integrated antenna and electronic device of the present invention and its core ideas. 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 the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.
Claims
1. An integrated antenna, characterized in that, include: A base column having a first end and a second end along its own height direction; The top cover is separately disposed from the base post, and the dielectric constant of the top cover is greater than that of the base post. The top cover is connected to the first end, and the side of the top cover facing away from the first end is the first side. A GNSS antenna, the GNSS antenna including multiple sets of spiral arms, each set of spiral arms is wound around the outer peripheral surface of the base column and extends spirally from the first end to the second end; as well as A communication antenna, wherein the communication antenna is disposed on the first surface; The top cover also includes a second side opposite to the first side, the second side being connected to the base post, and the second side being provided with a grounding module for grounding the communication antenna. The second side of the top cover is provided with a first protrusion, which surrounds the outer periphery of the grounding module to protect the grounding module. The first protrusion includes a first outer wall and a first surface facing away from the second side. The first outer wall is spaced from the outer periphery of the base post so that the position where the top cover and the first end are connected forms an accommodating space. The accommodating space is configured to provide an injection space for the injection connection between the top cover and the base post. The first surface abuts against the end face of the first end.
2. The integrated antenna according to claim 1, characterized in that, The communication antenna includes a 4G antenna and a Bluetooth / WIFI antenna.
3. The integrated antenna according to claim 2, characterized in that, The 4G antenna includes a first stub and a second stub connected to the first stub. The first stub is located at the edge of the first surface, and the second stub is located on the side of the first stub facing the center of the first surface. The portion of the second stub that is not connected to the first stub has a gap with the first stub.
4. The integrated antenna according to claim 3, characterized in that, The 4G antenna further includes a first coupling stub and a second coupling stub, wherein the first coupling stub is connected to the first stub and is located between the first stub and the second stub; The second coupling branch is connected to the first branch and located between the first branch and the second branch, and the second coupling branch and the first coupling branch are spaced apart along the extension direction of the first branch.
5. The integrated antenna according to claim 4, characterized in that, The first coupling stub includes a first connecting end and a first free end, the first connecting end being connected to the first stub, and the first free end extending along a first direction; The second coupling stub includes a second connecting end and a second free end. The second connecting end is connected to the first stub, and the connection position between the second connecting end and the first stub is spaced apart from the connection position between the first connecting end and the first stub. The second free end extends along a second direction. Wherein, the first direction is opposite to the second direction.
6. The integrated antenna according to claim 3, characterized in that, The 4G antenna also includes a third branch, which is disposed on the side wall of the top cover and connected to the first branch.
7. The integrated antenna according to claim 2, characterized in that, The Bluetooth / WIFI antenna is located at the edge of the first surface, and the Bluetooth / WIFI antenna is spaced apart from the 4G antenna. The Bluetooth / WIFI antenna and the 4G antenna are located on the same annular structure along the center of the first surface.
8. The integrated antenna according to claim 1, characterized in that, A second protrusion is provided on the first surface, the second protrusion has a second outer side wall, and the base column is a solid column or a hollow column; When the base column is a solid column, a first groove is provided on the end face of the first end of the base column, and the second outer side wall is attached to the inner wall surface of the first groove so that the second boss is fitted into the first groove. When the base column is a hollow column, the base column has a cavity, and the second outer side wall is attached to the inner wall surface of the cavity so that the second protrusion is fitted into the cavity.
9. The integrated antenna according to claim 8, characterized in that, The inner wall surface is provided with a first limiting component, and the second outer wall surface is provided with a second limiting component corresponding to the first limiting component. The second limiting component is engaged with the first limiting component to limit the top cover.
10. The integrated antenna according to any one of claims 1-7, characterized in that, The second end of the base column is provided with a second groove, which extends from the second end toward the first end. The GNSS antenna has a feed point located on the inner wall of the second groove. The integrated antenna also includes a circuit board located in the second groove, with the outer peripheral surface of the circuit board abutting against the inner wall of the second groove. The circuit board is electrically connected to the feed point.
11. The integrated antenna according to any one of claims 1-7, characterized in that, The integrated antenna also includes a filling layer and a protective layer. The filling layer is disposed on the outer peripheral surface of the base column, the first surface of the top cover, and the side wall of the top cover at the positions where the GNSS antenna and the communication antenna are not disposed. The filling layer is titanium dioxide. The protective layer is sprayed onto the surfaces of the filling layer, the GNSS antenna, and the communication antenna to cover the filling layer, the GNSS antenna, and the communication antenna, and the protective layer is PU paint.
12. An electronic device comprising a housing and an integrated antenna as described in any one of claims 1-11, the integrated antenna being disposed inside the housing.
Citation Information
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