Antenna assembly and wearable device

Abstract

The embodiment of the utility model provides an antenna assembly and a wearable device, the antenna assembly comprises a first WiFi antenna, a second WiFi antenna and a 2 * 2 MIMO WiFi module, the first WiFi antenna and the second WiFi antenna are arranged on a frame of the wearable device, the first WiFi antenna and the second WiFi antenna are arranged on diagonal sides of the frame, the 2 * 2 MIMO WiFi module is respectively connected with the first WiFi antenna and the second WiFi antenna, and the second WiFi antenna is connected with the 2 * 2 MIMO WiFi module. And performing dynamic connection according to signal quality. According to the antenna assembly provided by the utility model, through the design of the double WIFI antennas, the WIFI communication performance in the wearable equipment can be improved, and the use experience of a user is improved.

Description

Technical Field

[0001] This utility model relates to the field of radio frequency, and in particular to an antenna assembly and a wearable device. Background Technology

[0002] With the rapid development of smart wearable devices, smartwatches, as an important category, have gradually become indispensable tools in people's daily lives. Smartwatches not only possess the traditional time display function of a watch, but also integrate various intelligent functions such as communication, health monitoring, and navigation. Among these, Wi-Fi communication, as a crucial means for smartwatches to interact with the outside world, directly impacts the user experience.

[0003] In current technology, smartwatches typically employ a single-antenna, multi-frequency Wi-Fi antenna design. While this design meets basic Wi-Fi communication needs, it presents several problems in practical applications. First, a single antenna has weak directionality and penetration, making it susceptible to interference from the external environment, leading to unstable signal transmission. This is especially problematic in complex usage scenarios (such as indoors or densely populated areas), where signal attenuation is severe, network speeds slow down, and even connection drops occur. Second, the single-antenna design is easily obstructed by the user's wrist or other objects while the watch is worn, further exacerbating signal instability. Utility Model Content

[0004] This utility model provides an antenna assembly and a wearable device. Through the dual WIFI antenna design, the WIFI communication performance of the wearable device can be improved, thereby enhancing the user experience.

[0005] This utility model embodiment provides an antenna, including a first WiFi antenna and a second WiFi antenna disposed on the frame of the wearable device, as well as a 2×2 MIMO WiFi module;

[0006] The first WIFI antenna and the second WIFI antenna are disposed on opposite sides of the frame;

[0007] The 2×2 MIMO WiFi module is connected to the first WiFi antenna and the second WiFi antenna respectively, and is used to dynamically connect according to the signal quality.

[0008] In one embodiment, the first WiFi antenna includes a first antenna feed point and a first ground point, and the second WiFi antenna includes a second antenna feed point and a second ground point.

[0009] In one embodiment, the first grounding point and the second grounding point are respectively connected to the frame of the wearable device for grounding.

[0010] In one embodiment, the antenna assembly further includes an antenna switch, one end of which is connected to the 2×2 MIMO WiFi module, and the other end is connected to the first WiFi antenna or the second WiFi antenna. The 2×2 MIMO WiFi module is used to dynamically adjust the operating state of the first WiFi antenna and the second WiFi antenna according to the signal quality.

[0011] In one embodiment, the antenna assembly further includes a front-end module, which is connected to the 2×2 MIMO WiFi module and the antenna switch, respectively. The front-end module is used to amplify and filter the transmitted signals of the first WiFi antenna and the second WiFi antenna.

[0012] In one embodiment, the first WiFi antenna operates in a first WiFi frequency band, and the second WiFi antenna operates in a second WiFi frequency band.

[0013] In one embodiment, the first WiFi band is a 2.4 GHz band, and the second WiFi band is a 5 GHz band.

[0014] In one embodiment, the first WIFI antenna and the second WIFI antenna are embedded inside the frame of the wearable device using LDS laser engraving technology, and the shapes of the first WIFI antenna and the second WIFI antenna match the shape of the frame.

[0015] Accordingly, this utility model embodiment also provides a wearable device, the wearable device including a housing and an antenna assembly, the antenna assembly being located inside the housing, the antenna assembly including a first WiFi antenna and a second WiFi antenna disposed on the frame of the wearable device, and a 2×2 MIMO WiFi module;

[0016] The first WIFI antenna and the second WIFI antenna are disposed on opposite sides of the frame;

[0017] The 2×2 MIMO WiFi module is connected to the first WiFi antenna and the second WiFi antenna respectively, and is used to dynamically connect according to the signal quality.

[0018] In one embodiment, the housing includes a frame and a bottom shell, wherein the frame is a rounded rectangle.

[0019] The antenna assembly and wearable device provided in this embodiment of the invention include a first WiFi antenna and a second WiFi antenna disposed on the frame of the wearable device, as well as a 2×2 MIMO WiFi module. The first and second WiFi antennas are located on opposite sides of the frame. The 2×2 MIMO WiFi module is connected to both the first and second WiFi antennas for dynamic connection based on signal quality. Through the dual WiFi antenna design, the antenna assembly provided by this invention can improve the WiFi communication performance of the wearable device and enhance the user experience. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of an antenna assembly provided in an embodiment of the present invention.

[0022] Figure 2 This is another structural schematic diagram of the antenna assembly provided in this embodiment of the present invention.

[0023] Figure 3 This is a schematic diagram of the antenna assembly combining test results provided in this embodiment of the utility model.

[0024] Figure 4 This is a schematic diagram of a smartwatch provided in an embodiment of the present invention. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0026] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, 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 indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for mutual communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0028] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0029] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0030] This utility model provides an antenna. For example... Figure 1 As shown, it includes a first WiFi antenna 12 and a second WiFi antenna 13 disposed on the frame 11 of the wearable device, as well as a 2×2 MIMO WiFi module 14.

[0031] The first Wi-Fi antenna 12 and the second Wi-Fi antenna 13 are located on opposite sides of the frame 11, for example, at the 5 o'clock and 11 o'clock positions respectively. The 2×2 MIMO Wi-Fi module 14 is connected to both the first Wi-Fi antenna 12 and the second Wi-Fi antenna 13, and is used to dynamically connect based on the signal quality of the first Wi-Fi antenna 12 and the second Wi-Fi antenna 13. In one embodiment, the 2×2 MIMO Wi-Fi module 14 can achieve a reliable connection through traces on a printed circuit board (PCB) to ensure the stability of signal transmission.

[0032] In one embodiment, the first WiFi antenna 12 specifically includes a first antenna feed point 121 and a first ground point 122. Correspondingly, the second WiFi antenna 13 includes a second antenna feed point 131 and a second ground point 132. The first ground point 122 and the second ground point 132 are respectively connected to the frame 11 of the wearable device for grounding, ensuring stable electrical performance of the antenna. The first antenna feed point 121 and the second antenna feed point 131 are used to connect to a signal source.

[0033] The first grounding point 122 and the second grounding point 132 described above can be fixedly connected to the reference ground of the whole machine by welding. Alternatively, the plurality of grounding points can be fixedly connected to the reference ground of the whole machine by screw locking. In other embodiments, the plurality of grounding points can also be connected to the reference ground of the whole machine via connecting wires; this application does not further limit this.

[0034] In one embodiment, please continue to refer to Figure 2The antenna assembly may also include an antenna switch, one end of which is connected to the 2×2 MIMO WiFi module 14, and the other end is connected to the first WiFi antenna 12 or the second WiFi antenna 13. The 2×2 MIMO WiFi module 14 is specifically used to dynamically adjust the working state of the first WiFi antenna 12 and the second WiFi antenna 13 according to the signal quality of the two WiFi antennas through the antenna switch.

[0035] In one embodiment, the antenna assembly may further include a front-end module, which is connected to the 2×2 MIMO WiFi module 14 and the antenna switch respectively. The front-end module is used to amplify and filter the transmitted signals of the first WiFi antenna 12 and the second WiFi antenna 13, thereby improving the signal transmission quality.

[0036] The antenna assembly operates as follows: When a surrounding WiFi signal is detected, the 2×2 MIMO WiFi module monitors the signal quality of the air interface and spatial diversity in real time. If the signal quality received by the first WiFi antenna is better, the 2×2 MIMO WiFi module prioritizes the first WiFi antenna for data transmission via an antenna switch, while simultaneously controlling the front-end module to amplify and filter the transmitted signal to enhance signal strength and stability. Conversely, if the signal quality received by the second WiFi antenna is better, the 2×2 MIMO WiFi module switches to the second WiFi antenna to ensure efficient and stable data transmission.

[0037] In one embodiment, the first WiFi antenna 12 operates in a first WiFi frequency band, and the second WiFi antenna 13 operates in a second WiFi frequency band, for example, the first WiFi frequency band is the 2.4GHz band, and the second WiFi frequency band is the 5GHz band. When the antenna assembly establishes a connection with the wireless router, the 2×2 MIMO WiFi module can dynamically select a suitable antenna frequency band for communication based on the frequency band supported by the wireless router and the signal interference in the surrounding environment.

[0038] Specifically, when there is little interference in the surrounding 2.4GHz band and the wireless router has good signal strength in that band, the 2×2 MIMO WiFi module controls the first WiFi antenna to operate in the 2.4GHz band for data transmission. Because the 2.4GHz band has strong signal penetration, it can ensure stable signal reception for the smartwatch even in indoor environments with significant signal obstruction. However, when there is little interference in the surrounding 5GHz band and the wireless router has a high transmission rate in that band, the 2×2 MIMO WiFi module switches to the second WiFi antenna operating in the 5GHz band. This leverages the large bandwidth and high transmission rate of the 5GHz band to achieve high-speed data transmission, such as fast file downloads and smooth online video playback.

[0039] In one embodiment, both the first Wi-Fi antenna 12 and the second Wi-Fi antenna 13 can be embedded inside the frame 11 of the wearable device using LDS laser engraving technology. For example, firstly, a frame shell with a preset pattern is made using a specific injection molding material; this pattern is the shape outline of the antenna. Then, using an LDS laser engraving device, a laser is used to engrave a specific area of ​​the frame shell, activating the chemical activity of the material surface, enabling it to adsorb metal ions. Next, a layer of metal is deposited in the laser-engraved area using a chemical plating method to form an antenna with good conductivity.

[0040] In this embodiment, the shapes of the first Wi-Fi antenna 12 and the second Wi-Fi antenna 13 match the shape of the frame 11. This design not only makes full use of the space on the smartwatch frame but also effectively reduces the impact of the antennas on the smartwatch's appearance, ensuring the product's aesthetics and overall integrity. Simultaneously, the antennas, tightly integrated with the frame, can better utilize the frame's structure for signal radiation and reception, improving antenna performance. For example, when the smartwatch is in different usage postures and environments, this fitted design allows the antennas to more flexibly adjust the direction of signal reception and transmission, improving signal stability and directionality.

[0041] Furthermore, a comparison was made of the radiation patterns of the first Wi-Fi antenna, the second Wi-Fi antenna, and the combined test Wi-Fi. Please refer to [link / reference needed] for details. Figure 3 Comparing the individual test patterns of the first and second Wi-Fi antennas, the signal coverage pattern of the combined Wi-Fi signal is more complete and uniform, indicating that dual Wi-Fi merging reduces signal coverage blind spots and provides more comprehensive coverage. Devices can obtain relatively stable signals from different directions and locations. Furthermore, the overall color of the combined signal pattern is reddish (red typically represents a strong signal), indicating that dual Wi-Fi merging improves signal strength in certain areas compared to a single antenna, enabling devices to connect to the Wi-Fi network more stably and reducing network interruptions caused by weak signals. Therefore, the dual Wi-Fi solution provided in this embodiment can dynamically utilize the signal advantages of both antennas. When one antenna is interfered with or its signal weakens, the other antenna can compensate, ensuring the stability of the overall signal output and guaranteeing smooth data transmission.

[0042] This application also provides a wearable device, such as... Figure 4 As shown, the wearable device includes a housing 21 and an antenna assembly located inside the housing 21. In addition, when the wearable device is a smartwatch, the smartwatch may also include a watch band 22.

[0043] The housing 21 forms the outer contour of the wearable device to accommodate its electronic components and functional parts, while also providing a seal and protection for these components. For example, the wearable device's camera, circuit board, vibration motor, and other functional components can all be housed inside the housing 21.

[0044] In one embodiment, the housing 21 may further include a frame and a bottom shell, wherein the frame can be a rounded rectangle, and the frame and bottom shell can form a storage space. Correspondingly, the wearable device may also include a display screen disposed inside the frame for displaying images, text, and other information. The display screen may include a liquid crystal display (LCD) or an organic light-emitting diode (OLED) display screen. A cover plate may also be installed on the display screen to cover it. The cover plate may be a transparent glass cover plate so that the display screen transmits light through the cover plate for display. In some embodiments, the cover plate may be a glass cover plate made of a material such as sapphire.

[0045] In real-world usage scenarios, dual WiFi antennas offer significant advantages when wearable devices are in various environments, such as different rooms indoors, open outdoor spaces, and areas with complex signal conditions like elevators. For instance, when used in different rooms indoors, even if some walls obstruct the signal, the 2×2 MIMO WiFi module dynamically switches antennas, and combined with signal processing by the front-end module, the wearable device can still maintain a stable network connection, enabling smooth video calls and fast data synchronization. In open outdoor spaces, dual WiFi antennas fully utilize their directional advantages to improve signal reception sensitivity, ensuring the wearable device can quickly obtain network information, such as real-time updates to map navigation data.

[0046] This invention provides an antenna assembly and a wearable device. The antenna assembly includes a first WiFi antenna and a second WiFi antenna, as well as a 2×2 MIMO WiFi module, all disposed on the frame of the wearable device. The first and second WiFi antennas are located diagonally on opposite sides of the frame. The 2×2 MIMO WiFi module is connected to both the first and second WiFi antennas for dynamic connection based on signal quality. Through this dual WiFi antenna design, the antenna assembly provided by this invention improves the WiFi communication performance of the wearable device and enhances the user experience.

[0047] The antenna assembly and wearable device provided in the embodiments of this utility model have been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand this utility model. At the same time, those skilled in the art will have changes in the specific implementation and application scope based on the idea of ​​this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. An antenna assembly applied to a wearable device, characterized in that, The first WiFi antenna and the second WiFi antenna are arranged on opposite sides of the frame. The first WiFi antenna and the second WiFi antenna are arranged on opposite sides of the frame. The 2x2 MIMO WiFi module is connected with the first WiFi antenna and the second WiFi antenna respectively, and is configured to dynamically connect according to signal quality.

2. The antenna assembly of claim 1, wherein, The first WiFi antenna comprises a first antenna feed point and a first grounding point, and the second WiFi antenna comprises a second antenna feed point and a second grounding point.

3. The antenna assembly of claim 2, wherein, The first grounding point and the second grounding point are connected to the frame of the wearable device for grounding.

4. The antenna assembly of claim 1, wherein, The antenna assembly further comprises an antenna switch, one end of the antenna switch being connected with the 2x2 MIMO WiFi module, and the other end being connected with the first WiFi antenna or the second WiFi antenna, and the 2x2 MIMO WiFi module is configured to dynamically adjust the working state of the first WiFi antenna and the second WiFi antenna according to signal quality.

5. The antenna assembly of claim 4, wherein, The antenna assembly further comprises a front-end module, the front-end module being connected with the 2x2 MIMO WiFi module and the antenna switch respectively, and the front-end module is configured to perform power amplification and filtering on the transmission signals of the first WiFi antenna and the second WiFi antenna.

6. The antenna assembly of claim 1, wherein, The first WiFi antenna works in a first WiFi frequency band, and the second WiFi antenna works in a second WiFi frequency band.

7. The antenna assembly of claim 6, wherein, The first WiFi frequency band is a 2.4 GHz frequency band, and the second WiFi frequency band is a 5 GHz frequency band.

8. The antenna assembly of any of claims 1-7, wherein, The first WiFi antenna and the second WiFi antenna are embedded in the frame of the wearable device by LDS engraving technology, and the shapes of the first WiFi antenna and the second WiFi antenna match the outer shape of the frame.

9. A wearable device, comprising: The wearable device comprises a shell and an antenna assembly, the antenna assembly being located inside the shell, and the antenna assembly comprises a first WiFi antenna and a second WiFi antenna arranged on the frame of the wearable device and a 2x2 MIMO WiFi module. The first WiFi antenna and the second WiFi antenna are arranged on opposite sides of the frame. The 2x2 MIMO WiFi module is connected with the first WiFi antenna and the second WiFi antenna respectively, and is configured to dynamically connect according to signal quality.

10. The wearable device of claim 9, wherein, The shell comprises a frame and a bottom shell, and the frame is a circular rectangular shape.

Images