Antenna device, watch body and wearable device

Abstract

The present application relates to an antenna device, a watch body and a wearable device. The antenna device comprises an outer frame, wherein the outer frame is used for surrounding the edge of a main board of the watch body. The outer frame comprises at least three slots, and the at least three slots divide the outer frame into a first antenna radiator, a first isolation segment and a second antenna radiator. The first antenna radiator comprises a first feeding point and a first grounding point spaced apart and both electrically connected to the main board. The second antenna radiator comprises a second feeding point and a second grounding point spaced apart and both electrically connected to the main board. The first isolation segment comprises a third grounding point electrically connected to the main board, and the first isolation segment is used to improve the isolation between the first antenna radiator and the second antenna radiator. The antenna device provided in the embodiments of the present application can support multiple communication specifications and has good antenna performance.

Description

Antenna devices, watch bodies and wearable devices

[0001] This application claims priority to Chinese Patent Application No. 202411440662.0, filed on October 14, 2024, entitled “Antenna Device, Watch Body and Wearable Device”, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of wearable device technology, and more particularly to an antenna device, a watch body, and a wearable device. Background Technology

[0003] Smartwatches are small in size with tightly packed internal components, making antenna design challenging. From an aesthetic perspective, a metal frame not only increases structural stability but also provides a stylish look. For smartwatches with metal frames, the metal frame is typically used to design the antenna. However, as user demands continue to rise, the need for miniaturization and diversified communication functions in smartwatches is increasing. Currently, smartwatch antenna designs can only accommodate a limited number of communication specifications, and their antenna performance is often poor. Summary of the Invention

[0004] This application provides an antenna device, a watch body, and a wearable device. The antenna device of this application can accommodate multiple communication specifications and has excellent antenna performance.

[0005] In a first aspect, embodiments of this application provide an antenna device applied to a watch body. The antenna device includes an outer frame, which is used to surround the edge of the mainboard of the watch body. In other words, the mainboard is located within the space formed by the outer frame, and the mainboard can be a circuit board.

[0006] The outer frame includes at least three gaps that divide the outer frame into a first antenna radiator, a first isolation section, and a second antenna radiator. Understandably, gaps are provided between the first antenna radiator and the first isolation section, between the first isolation section and the second antenna radiator, and between the second antenna radiator and the first antenna radiator. The first isolation section is located between the first antenna radiator and the second antenna radiator.

[0007] The first antenna radiator includes a first feed point and a first ground point spaced apart, both of which are electrically connected to the motherboard. The second antenna radiator includes a second feed point and a second ground point spaced apart, both of which are electrically connected to the motherboard. The first isolation section includes a third ground point electrically connected to the motherboard. The first isolation section is used to improve the isolation between the first antenna radiator and the second antenna radiator.

[0008] This application embodiment divides the outer frame into at least three independent metal segments through at least three gaps. Each metal segment can be equipped with different antennas as needed, which is beneficial to improve the design freedom of the antennas, enabling the integration of multiple antennas to meet the requirements of multiple antennas and multiple frequency bands, realizing various communication specifications of wearable devices, and meeting the increasing communication needs of users. By setting a first isolation segment between the first antenna radiator and the second antenna radiator, the first isolation segment increases the spacing between the first antenna radiator and the second antenna radiator. Since the first isolation segment is electrically connected to the motherboard, it reduces the coupling degree between the first antenna radiator and the second antenna radiator, which is beneficial to improve the isolation degree between the first antenna radiator and the second antenna radiator, effectively improving the antenna performance corresponding to the first antenna radiator and the second antenna radiator.

[0009] In one possible implementation, the third grounding point is located at the end of the first isolation section. By placing the third grounding point at the end of the first isolation section, this embodiment of the application improves the isolation between the first antenna radiator and the second antenna radiator.

[0010] In one possible implementation, the first isolation segment includes a third feed point, which is spaced apart from the third ground point and electrically connected to the motherboard. Understandably, when the first isolation segment has a third feed point, the first isolation segment can be a radiator of an antenna. This embodiment of the application, by using the first isolation segment as an antenna radiator, increases the design freedom of the antenna in wearable devices, facilitating the design of more communication specifications to meet the increasing user demands, and also improves the isolation between the first antenna radiator and the second antenna radiator.

[0011] In one possible implementation, the antenna frequency band corresponding to the first antenna radiator is less than the antenna frequency band corresponding to the first isolation section, and / or the antenna frequency band corresponding to the second antenna radiator is less than the antenna frequency band corresponding to the first isolation section. This is beneficial for rationally arranging the antenna positions according to the antenna frequency bands, so as to take into account more communication specifications.

[0012] In other embodiments, the antenna frequency band corresponding to the first antenna radiator may also be greater than the antenna frequency band corresponding to the first isolation section, and / or, the antenna frequency band corresponding to the second antenna radiator may also be greater than the antenna frequency band corresponding to the first isolation section.

[0013] In one possible implementation, the extension length of the first antenna radiator is greater than the extension length of the first isolation section, and / or, the extension length of the second antenna radiator is greater than the extension length of the first isolation section. The extension length of the first antenna radiator can be understood as the extension length of its edge towards the motherboard side, the extension length of the second antenna radiator can be understood as the extension length of its edge towards the motherboard side, and the extension length of the first isolation section can be understood as the extension length of its edge towards the motherboard side. The relatively long extension lengths of the first and second antenna radiators allow for flexible design of the number and location of feed points and grounding points, enabling flexible antenna configuration and facilitating the integration of multiple antennas while accommodating various communication specifications.

[0014] In other embodiments, the extension length of the first antenna radiator may also be less than the extension length of the first isolation section, and / or, the extension length of the second antenna radiator may also be less than the extension length of the first isolation section.

[0015] In one possible implementation, the first isolation section is the radiator of a UWB antenna. By setting the first isolation section as the radiator of a UWB antenna, UWB communication can be achieved, increasing the communication specifications of wearable devices.

[0016] In one possible implementation, the first antenna radiator is a satellite communication antenna radiator, and the first feed point is located between the 9 o'clock and 12 o'clock positions on the watch body. For example, the first feed point can be located at the 10 o'clock position on the watch body. Satellite communication antennas have relatively high requirements for their radiation pattern. This embodiment of the application, by setting the first feed point between the 9 o'clock and 12 o'clock positions on the watch body, can satisfy the left-hand circular polarization of the satellite communication antenna, thus meeting the performance requirements of the satellite communication antenna.

[0017] In one possible implementation, the first feed point is closer to the first end of the first antenna radiator, and the distance between the first feed point and the first end is greater than or equal to 2 mm and less than or equal to 15 mm. For example, the distance between the first feed point and the first end is 3 mm, 4 mm, 5 mm, 6 mm, 8 mm, 10 mm, 12 mm, or 14 mm. The distance between the first feed point and the first end cannot be too close, as this would make it difficult to excite the antenna, and the current at the end of the first antenna radiator would be small while the impedance would be large, which would be detrimental to matching. This embodiment of the application, by setting the distance between the first feed point and the first end to be greater than or equal to 2 mm and less than or equal to 15 mm, facilitates full utilization of the first antenna radiator, makes the antenna easy to excite, and provides good performance.

[0018] In one possible implementation, the second antenna radiator is a GPS antenna radiator, and the 6 o'clock position of the watch body is positioned between the two ends of the second antenna radiator. In other words, the 6 o'clock position of the wearable device is located between the two ends of the second antenna radiator, meaning the second antenna radiator passes through the 6 o'clock position of the wearable device. The GPS antenna needs to cover more user postures and more usage scenarios. When the second antenna radiator is a GPS antenna radiator, by positioning the 6 o'clock position of the wearable device between the two ends of the second antenna radiator, the GPS antenna has a better radiation pattern towards the 6 o'clock position, which is beneficial for the GPS antenna to have superior performance.

[0019] In one possible implementation, the second feed point is located between the 6 o'clock and 9 o'clock positions on the watch body. For example, the second feed point is located at the 8 o'clock position on the wearable device. Since the GPS antenna only needs to receive signals and does not need to transmit them, good right-hand circular polarization is required. By setting the second feed point between the 6 o'clock and 9 o'clock positions on the wearable device, the right-hand circular polarization of the GPS antenna can be better achieved, and it is easier to cover more user postures, meeting more usage scenarios.

[0020] In one possible implementation, the first antenna radiator is at least one of a satellite communication antenna and a cellular antenna. By setting the first antenna radiator to at least one of a satellite communication antenna and a cellular antenna, this embodiment of the application allows for flexible configuration of antenna types and the integration of multiple antennas, accommodating various communication specifications.

[0021] In one possible implementation, the second antenna radiator is at least one of a GPS antenna and a short-range communication antenna. By setting the second antenna radiator to at least one of a GPS antenna and a short-range communication antenna, this embodiment of the application allows for flexible antenna configuration and integration of multiple antennas, accommodating various communication specifications.

[0022] In one possible implementation, the gap separating the outer frame further forms a second isolation section. This second isolation section is located between the first antenna radiator and the second antenna radiator. The second isolation section has a fourth grounding point electrically connected to the motherboard, which improves the isolation between the first and second antenna radiators. By setting a second isolation section between the first and second antenna radiators, the spacing between them is increased. Furthermore, since the second isolation section is electrically connected to the motherboard, the coupling between the first and second antenna radiators is reduced, which helps to improve the isolation between them and effectively enhances the antenna performance corresponding to the first and second antenna radiators.

[0023] In one possible implementation, the second isolation segment is spaced apart from the first isolation segment. For example, the second isolation segment and the first isolation segment are disposed opposite each other on opposite sides of the watch body. By setting the second isolation segment and the first isolation segment apart, this application enables the second isolation segment and the first isolation segment to be distributed between the first antenna radiator and the second antenna radiator, achieving a symmetrical and uniform distribution of the multiple metal segments of the outer frame, thus improving the aesthetic appearance.

[0024] In one possible implementation, the second isolation segment includes a fifth grounding point, which is located at both ends of the second isolation segment along with the fourth grounding point. The fifth grounding point is electrically connected to the motherboard, which helps to improve the isolation between the first antenna radiator and the second antenna radiator. Furthermore, since the fourth and fifth grounding points are located at opposite ends of the second isolation segment, the large distance between them significantly reduces the coupling between the first antenna radiator and the second antenna radiator.

[0025] In one possible implementation, the first antenna radiator includes a first lug for connecting to a first strap of the wearable device, and the second antenna radiator includes a second lug for connecting to a second strap of the wearable device. Understandably, the 12 o'clock position of the wearable device corresponds to the first lug, and the 6 o'clock position corresponds to the second lug. Since wearable devices are primarily worn on the wrist, antenna performance is significantly affected by the arm. The positions of the first and second lugs (near the 6 o'clock and 12 o'clock positions of the wearable device) are close to the outer edge of the arm when worn, and some of the first and second lugs do not fit snugly against the arm, thus the antenna performance is less affected by the arm, which is a more advantageous position for antenna design. The 3 o'clock and 9 o'clock positions of the wearable device are always directly above the arm when worn, fitting snugly against the arm, and are more affected by the arm. In this embodiment of the application, the first antenna radiator may include a first lug, and the second antenna radiator may include a second lug. By setting the first antenna radiator and the second antenna radiator near the 6 o'clock and 12 o'clock positions of the wearable device, it is possible to ensure that the antennas corresponding to the first antenna radiator and the second antenna radiator have good performance.

[0026] In one possible implementation, the outer frame is provided with mounting holes for mounting the buttons of the watch body, and at least one of the plurality of gaps in the outer frame communicates with the mounting holes. Understandably, the gaps in the outer frame can be positioned where the buttons of the wearable device would be located. By using the crown of the button to cover the gap, the impact of the gap on the appearance of the wearable device is reduced, improving its aesthetics while balancing antenna performance and watch appearance.

[0027] In one possible implementation, the antenna device includes an insulating component located between the outer frame and the button. This helps to achieve insulation between the button and the outer frame, preventing the button from electrically connecting multiple independent metal segments of the outer frame and affecting antenna performance.

[0028] In one possible implementation, at least one of the multiple slits in the outer frame is provided with an ink layer, which forms the outer surface of the watch body. Different colored ink layers can be used to enhance the appearance of the outer frame and improve the aesthetic appeal of the wearable device, depending on aesthetic requirements.

[0029] In one possible implementation, the antenna device includes a recess located within at least one of the plurality of slots in the outer frame. The recess increases the design diversity of the slots and enhances the aesthetics of the wearable device.

[0030] Secondly, this application provides a watch body, including a motherboard and an antenna device as described in any of the foregoing embodiments, wherein the antenna device is electrically connected to the motherboard.

[0031] Thirdly, this application provides a wearable device, including a first watch strap, a second watch strap, and a watch body as described in any of the foregoing embodiments, wherein the first watch strap is connected to a first lug of the watch body, and the second watch strap is connected to a second lug of the watch body. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this application or the background art, the accompanying drawings used in the embodiments of this application or the background art will be described below.

[0033] Figure 1 is a structural schematic diagram of a wearable device provided in an embodiment of this application;

[0034] Figure 2 is an exploded view of a portion of the structure of the wearable device shown in Figure 1.

[0035] Figure 3 is a partial structural diagram of the wearable device shown in Figure 1;

[0036] Figure 4 is a structural schematic diagram of part of the wearable device shown in Figure 3 from another angle.

[0037] Figure 5 is a partial structural schematic diagram of the wearable device shown in Figure 1;

[0038] Figure 6 is a partial structural diagram of the wearable device shown in Figure 1;

[0039] Figure 7 is an enlarged view of the structure at point X1 of the partial structure of the wearable device shown in Figure 6;

[0040] Figure 8 is a schematic diagram of a portion of the structure of the wearable device shown in Figure 3 from another angle;

[0041] Figure 9 is an enlarged view of the structure at point X2 of the partial structure of the wearable device shown in Figure 8;

[0042] Figure 10 is a schematic diagram of another antenna device provided in an embodiment of this application;

[0043] Figure 11 is a schematic diagram of another antenna device provided in an embodiment of this application. Detailed Implementation

[0044] 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 some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0045] It should be understood that the terms "first," "second," etc., used in this application are for distinguishing purposes only and should not be construed as indicating or implying relative importance or order.

[0046] In the description of this application, the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application 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. Therefore, they should not be construed as limitations on this application.

[0047] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the term "connection" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, a mating connection, or an integral connection; those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0048] As shown in Figures 1 and 2, Figure 1 is a structural schematic diagram of a wearable device 100, and Figure 2 is an exploded view of a portion of the structure of the wearable device 100 shown in Figure 1. The first strap 10 and the second strap 20 of the wearable device 100 shown in Figure 1 are not shown in Figure 2.

[0049] Wearable device 100 can be a smartwatch. Besides telling time, wearable device 100 typically has one or more functions such as reminders, navigation, calibration, monitoring, and interaction. For example, wearable device 100 can make calls, send and receive text messages, monitor sleep, monitor heart rate, provide sedentary reminders, track steps, take photos remotely, play music, record video, and act as a compass. The multifunctional design and stylish appearance of wearable device 100 meet user needs and have broad application prospects.

[0050] The wearable device 100 may include a first watch strap 10, a second watch strap 20, and a watch body 40. The first watch strap 10 is connected to a first lug 3215 of the watch body 40, and the second watch strap 20 is connected to a second lug 3225 of the watch body 40. For example, the first watch strap 10 is rotatably connected to the first lug 3215, and the second watch strap 20 is rotatably connected to the second lug 3225. The materials of the first watch strap 10 and the second watch strap 20 may be rubber, metal, leather, nylon, or ribbon, etc.

[0051] After the wearable device 100 is placed on the wrist or other part of the body, the first strap 10 and the second strap 20 can be fastened together, enabling the wearable device 100 to be worn. When the wearable device 100 is no longer needed, the first strap 10 and the second strap 20 can be unfastened to remove the wearable device 100 from its wearing position.

[0052] Referring to Figure 2, the wearable device 40 may include an antenna device 30 and a motherboard 50. The motherboard 50 may be a circuit board, which may house key components such as a central processing unit, memory, and radio chip, as well as various components connecting the wearable device 100, ensuring the normal operation of the wearable device 100 and communication with other devices. The motherboard 50 is not limited to the irregular shape shown in Figure 2; it may be square, circular, or other shapes, and its shape can be designed according to the internal space of the wearable device 100.

[0053] The antenna device 30 is electrically connected to the motherboard 50, and the antenna device 30 may include an outer frame 32. The outer frame 32 surrounds the edge of the motherboard 50. The shape of the outer frame 32 can be circular or square, etc. The outer frame 32 can be made of metal, such as aluminum alloy or titanium alloy. Aluminum alloy, as a lightweight and high-strength metal material, not only has excellent wear resistance and corrosion resistance, but also effectively reduces the overall weight of the watch and improves wearing comfort. Titanium alloy is lightweight and high-strength, and also has good corrosion resistance, maintaining stable performance in various environments.

[0054] The wearable device 100 may also include a back cover (not shown in Figures 1 and 2), a display module 33, and a battery 34. The display module 33 and the back cover are spaced apart on opposite sides of the outer frame 32. The display module 33 and the back cover can form a receiving space with the outer frame 32 to receive the mainboard 50, battery 34, etc. of the wearable device 100.

[0055] Referring to Figure 2, the display module 33 has a display function, capable of displaying pictures or images to meet user needs. The display module 33 may include a display layer 331 and a touch layer 332 covering the display layer. The touch layer 332 allows for user touch operation and can be a transparent glass cover, plastic, or other highly transparent material. The touch layer 332 is located on the outermost layer of the wearable device 100, directly in contact with the outside world, protecting the internal display layer 331 from external impacts and scratches, while maintaining good transparency and optical performance to ensure the user can clearly see the content on the display layer 331. The display layer 331 can be a liquid crystal display, an active matrix organic light-emitting diode display, a micro light-emitting diode, a micro organic light-emitting diode display, a quantum dot light-emitting diode display, or an organic light-emitting diode display, etc.

[0056] Referring to Figure 2, the battery 34 is located within the housing space of the wearable device 100. The battery 34 can be fixed to the interior of the wearable device 100 via the bracket 31. The battery 34 is used to power the components inside the wearable device 100. The battery 34 is generally large in size, occupying a significant amount of internal space in the wearable device 100. The battery 34 can be square as shown in Figure 2, or it can be circular or an irregular shape, etc. The embodiments of this application do not specifically limit the shape and position of the battery 34.

[0057] The wearable device 100 may include a bezel 35. The bezel 35 serves a decorative purpose. It also effectively prevents dust, moisture, and steam from entering the wearable device 100 and affecting its performance. The bezel 35 may be made of ceramic, which has extremely high hardness, allowing it to maintain its appearance even in extreme environments and resisting scratches, ensuring both aesthetics and durability during daily use. In other embodiments, the bezel 35 may be made of metal.

[0058] The wearable device 100 may include a first button 361, a second button 362, and a third button 363 spaced apart. The outer frame 32 may have a first mounting hole 3291, a second mounting hole 3292, and a third mounting hole 3293. The first button 361 is located in the first mounting hole 3291, the second button 362 is located in the second mounting hole 3292, and the third button 363 is located in the third mounting hole 3293. The buttons on the wearable device 100 may be a power button, an operation button, a function button, or other buttons.

[0059] The first button 361 can be located at the 10 o'clock position of the wearable device 100, the second button 362 can be located at the 2 o'clock position of the wearable device 100, and the third button 363 can be located at the 4 o'clock position of the wearable device 100. The first button 361, the second button 362, and the third button 363 can also be located in other positions, which are not limited in this embodiment.

[0060] In other embodiments, the wearable device 100 may also have one button, two buttons, or four buttons, etc. The number of buttons is not limited in this application embodiment.

[0061] The wearable device 100 in Figures 1 and 2 is only schematic; the size, shape, and specific structure of the wearable device 100 can be set as needed. This application does not limit the specific structure of the wearable device 100.

[0062] As shown in Figures 3, 4, and 5, Figure 3 is a partial structural schematic diagram of the wearable device 100 shown in Figure 1, Figure 4 is a structural schematic diagram of the wearable device 100 shown in Figure 3 from another angle, and Figure 5 is a partial structural schematic diagram of the wearable device 100 shown in Figure 1. The outer frame 32 of the antenna device 30 may include at least three gaps, which divide the outer frame 32 into at least three segments. For example, four gaps can divide the outer frame 32 into a first antenna radiator 321, a second antenna radiator 322, a first isolation segment 323, and a second isolation segment 324. A gap is provided between any two of the first antenna radiator 321, the second antenna radiator 322, the first isolation segment 323, and the second isolation segment 324. Figure 3 illustrates an example where the outer frame 32 has four gaps. A first gap 325 exists between the first antenna radiator 321 and the second isolation section 324; a second gap 326 exists between the first antenna radiator 321 and the first isolation section 323; a third gap 327 exists between the second antenna radiator 322 and the first isolation section 323; and a fourth gap 328 exists between the second antenna radiator 322 and the second isolation section 324. The first gap 325, the first antenna radiator 321, the second gap 326, the first isolation section 323, the third gap 327, the second antenna radiator 322, the fourth gap 328, and the second isolation section 324 are arranged sequentially along the circumferential direction of the wearable device 100. The first gap 325, the second gap 326, the third gap 327, and the fourth gap 328 all serve to separate the outer frame 32, forming four independent metal segments within the outer frame 32.

[0063] The first antenna radiator 321 includes a first feed point 3211 and a first ground point 3212 spaced apart, both of which are electrically connected to the motherboard 50. The first feed point 3211 and the first ground point 3212 protrude from the main body of the first antenna radiator 321 and are located on the side of the first antenna radiator 321 facing the motherboard 50.

[0064] In some embodiments, the first antenna radiator 321 may further include a sixth grounding point 3213 and a seventh grounding point 3214 spaced apart, both of which are electrically connected to the motherboard 50. The sixth grounding point 3213 and the seventh grounding point 3214 protrude from the main body of the first antenna radiator 321 and are located on the side of the first antenna radiator 321 facing the motherboard 50. In other embodiments, the first antenna radiator 321 may also include other grounding points; the number of grounding points for the first antenna radiator 321 is not limited in this application embodiment.

[0065] Understandably, the first power supply point 3211, the first ground point 3212, the sixth ground point 3213, and the seventh ground point 3214 can be electrically connected to the main board 50 via a spring contact 371 (see Figure 4) or a screw 372 (see Figures 4 and 5). Taking the first power supply point 3211 and the first ground point 3212 being electrically connected to the main board 50 via a screw 372, and the sixth ground point 3213 and the seventh ground point 3214 being electrically connected to the main board 50 via a spring contact 371 as an example. Exemplarily, one end of the spring contact 371 is connected to the sixth ground point 3213, and the other end of the spring contact 371 is connected to the main board 50. The spring contact 371 can be electrically connected to the main board 50 via a conductive wire (not shown in Figure 4). The screw 372 is used to connect the bracket 31 to the first power supply point 3211 to fix the bracket 31 to the outer frame 32, increasing the connection stability of the bracket 31 and the battery 34 in the wearable device 100. Screw 372 electrically connects the first power supply point 3211 to the main board 50. The electrical connection between the power supply point and the ground point and the main board 50 can be selectively achieved by using spring contact 371, screw 372 or other methods as needed, and this application embodiment does not limit this.

[0066] Referring to Figure 3, the second antenna radiator 322 includes a second feed point 3221 and a second ground point 3222 spaced apart, both of which are electrically connected to the motherboard 50. The second feed point 3221 and the second ground point 3222 protrude from the main body of the second antenna radiator 322 and are located on the side of the second antenna radiator 322 facing the motherboard 50.

[0067] In some embodiments, the second antenna radiator 322 may further include an eighth grounding point 3223 and a ninth grounding point 3224 spaced apart, both of which are electrically connected to the motherboard 50. The eighth grounding point 3223 and the ninth grounding point 3224 protrude from the main body of the second antenna radiator 322 and are located on the side of the second antenna radiator 322 facing the motherboard 50. In other embodiments, the second antenna radiator 322 may also include other grounding points; the number of grounding points for the second antenna radiator 322 is not limited in this application embodiment.

[0068] The second power supply point 3221, the second grounding point 3222, the eighth grounding point 3223, and the ninth grounding point 3224 can be electrically connected to the motherboard 50 via spring clips or screws.

[0069] Referring to Figure 3, the first isolation section 323 includes a third grounding point 3231, which is electrically connected to the main board 50. The first isolation section 323 is used to improve the isolation between the first antenna radiator 321 and the second antenna radiator 322. The third grounding point 3231 protrudes from the main body of the first isolation section 323 and is located on the side of the first isolation section 323 facing the main board 50. The third grounding point 3231 can be electrically connected to the main board 50 via a spring clip or screw.

[0070] Referring to Figure 3, the second isolation section 324 includes a fourth grounding point 3241, which is electrically connected to the main board 50 and is used to improve the isolation between the first antenna radiator 321 and the second antenna radiator 322. The fourth grounding point 3241 protrudes from the main body of the second isolation section 324 and is located on the side of the second isolation section 324 facing the main board 50.

[0071] In some embodiments, the second isolation segment 324 further includes a fifth ground point 3242. The fifth ground point 3242 protrudes from the main body of the second isolation segment 324 and is located on the side of the second isolation segment 324 facing the motherboard 50.

[0072] The fourth grounding point 3241 and the fifth grounding point 3242 can be electrically connected to the motherboard 50 through spring contacts or screws. In this embodiment, the location of the grounding point and the electrical connection method with the motherboard 50 are not limited.

[0073] The fourth grounding point 3241 and the fifth grounding point 3242 of the second isolation section 324 can be located at opposite ends of the second isolation section 324. The fourth grounding point 3241 is located at the end of the second isolation section 324 closer to the first gap 325, and the fifth grounding point 3242 is located at the end of the second isolation section 324 closer to the fourth gap 328. That is, the fourth grounding point 3241 is close to the first antenna radiator 321, and the fifth grounding point 3242 is close to the second antenna radiator 322, which helps to improve the isolation between the first antenna radiator 321 and the second antenna radiator 322. In addition, since the fourth grounding point 3241 and the fifth grounding point 3242 are located at opposite ends of the second isolation section 324, the distance between the fourth grounding point 3241 and the fifth grounding point 3242 is large, which has a greater effect on reducing the coupling between the first antenna radiator 321 and the second antenna radiator 322.

[0074] In some embodiments, the second isolation segment 324 and the first isolation segment 323 are spaced apart. For example, the second isolation segment 324 and the first isolation segment 323 are disposed opposite each other on both sides of the casing. By setting the second isolation segment and the first isolation segment to be spaced apart, the second isolation segment and the first isolation segment can be distributed between the first antenna radiator and the second antenna radiator, achieving a symmetrical and uniform distribution of the multiple metal segments of the outer frame, thus improving the aesthetic appearance.

[0075] This embodiment of the application divides the outer frame 32 into at least three independent metal segments. Each metal segment can be equipped with different antennas as needed, which is beneficial to improving the design freedom of the antennas and enabling the integration of multiple antennas to meet the requirements of multiple antennas and multiple frequency bands. This allows for the realization of multiple communication specifications of the wearable device 100 and meets the increasing communication needs of users. By setting a first isolation segment 323 between the first antenna radiator 321 and the second antenna radiator 322, the first isolation segment 323 increases the spacing between the first antenna radiator 321 and the second antenna radiator 322. Since the first isolation segment 323 is electrically connected to the motherboard 50, it reduces the coupling degree between the first antenna radiator 321 and the second antenna radiator 322, which is beneficial to improving the isolation degree between the first antenna radiator 321 and the second antenna radiator 322, and effectively improving the antenna performance corresponding to the first antenna radiator 321 and the second antenna radiator 322. By setting a second isolation section 324 between the first antenna radiator 321 and the second antenna radiator 322, the second isolation section 324 increases the spacing between the first antenna radiator 321 and the second antenna radiator 322. Since the second isolation section 324 is electrically connected to the motherboard 50, it reduces the coupling degree between the first antenna radiator 321 and the second antenna radiator 322, which is beneficial to improving the isolation degree between the first antenna radiator 321 and the second antenna radiator 322, and effectively improves the antenna performance corresponding to the first antenna radiator 321 and the second antenna radiator 322.

[0076] Referring to Figures 1 and 3, at least one of the first gap 325, the second gap 326, the third gap 327, and the fourth gap 328 connects to the mounting hole. For example, the first gap 325 is located at the position of the first button 361 and connects to the first mounting hole 3291; the second gap 326 is located at the position of the second button 362 and connects to the second mounting hole 3292; and the third gap 327 is located at the position of the third button 363 and connects to the third mounting hole 3293. Understandably, the gaps in the outer frame 32 can be positioned at the locations of the buttons on the wearable device 100. By using the crown of the button to cover the gaps, the impact of the gaps on the appearance of the wearable device 100 is reduced, improving the aesthetics of the wearable device 100 while balancing antenna performance and watch appearance. Furthermore, the bezel 35 can also cover the gaps, reducing their impact on the appearance of the wearable device 100. Understandably, the size of the bezel 35 in Figure 1 is only schematic and the size of the bezel 35 can be larger to provide more coverage of the gap.

[0077] Taking the first gap 325 located at the position of the first button 361 and connecting the first mounting hole 3291 as an example, when the size of the first mounting hole 3291 is small, the first gap 325 can be positioned in the middle of the first mounting hole 3291, which is beneficial for the first button 361 to block the first gap 325. This avoids the situation where the first button 361 blocks the first gap 325 less when the first gap 325 is positioned at the edge of the first mounting hole 3291. When the size of the first mounting hole 3291 is large, the first gap 325 can be positioned in the middle of the first mounting hole 3291 or in a non-middle position. This application does not limit this.

[0078] Referring to Figures 1 and 2, when the bezel 35 is made of metal, gaps also need to be provided at corresponding positions to the first gap 325, the second gap 326, the third gap 327, and the fourth gap 328 to divide the bezel 35 into four independent metal segments. The gaps on the bezel 35 communicate with the gaps on the outer frame 32 to prevent the bezel 35 from electrically connecting the independent metal segments of the outer frame 32 if the bezel 35 is made of metal and no gaps are provided. In some embodiments, a scale can be provided on the bezel 35, and the gaps on the bezel 35 can be located at the scale positions, such as at the 3 o'clock or 9 o'clock position. Providing gaps at the scale positions can reduce the impact of the gaps on the appearance of the wearable device 100.

[0079] Referring to Figure 3, the first antenna radiator 321 may include a first lug 3215, and the second antenna radiator 322 may include a second lug 3225. The 12 o'clock position of the wearable device 100 corresponds to the first lug 3215 and the first watchband 10, and the 6 o'clock position of the wearable device 100 corresponds to the second lug 3225 and the second watchband 20.

[0080] Understandably, the wearable device 100 is primarily used on the wrist, and its antenna performance is significantly affected by the arm. The positions of the first tab 3215 and the second tab 3225 (near the 6 o'clock and 12 o'clock positions of the wearable device 100) are close to the outer edge of the arm when worn, with some of the first tab 3215 and second tab 3225 not directly against the arm. Therefore, the antenna performance is less affected by the arm, making these positions advantageous for antenna design. The 3 o'clock and 9 o'clock positions of the wearable device 100 are always directly above the arm and in close contact with it, making them more susceptible to arm-related influences. In this embodiment, by setting the first antenna radiator 321 to include the first tab 3215 and the second antenna radiator 322 to include the second tab 3225, and positioning the first antenna radiator 321 and the second antenna radiator 322 near the 6 o'clock and 12 o'clock positions of the wearable device 100, the corresponding antennas of the first antenna radiator 321 and the second antenna radiator 322 can be guaranteed to have good antenna performance.

[0081] In other embodiments, the first antenna radiator 321 may not include the first lug 3215, and the second antenna radiator 322 may not include the second lug 3225. That is, the first antenna radiator 321 and the second antenna radiator 322 can be located at other positions on the wearable device 100, and this application embodiment does not limit this. In this application embodiment, the first antenna radiator 321 includes the first lug 3215, and the second antenna radiator 322 includes the second lug 3225 as an example.

[0082] Referring to Figure 3, in some embodiments, the third grounding point 3231 is located at the end of the first isolation section 323. Exemplarily, the third grounding point 3231 is located at the end of the first isolation section 323 near the second gap 326. By setting the third grounding point 3231 at the end of the first isolation section 323, this embodiment of the application helps to improve the isolation between the first antenna radiator 321 and the second antenna radiator 322.

[0083] The third grounding point 3231 can be electrically connected to the motherboard 50 via an inductor, capacitor, or antenna switch to achieve grounding. Inductors and capacitors have a certain frequency selectivity. A larger inductor acts as a path for low-frequency signals but a disconnect for high-frequency signals; a smaller capacitor acts as a path for high-frequency signals but a disconnect for low-frequency signals. This embodiment uses grounding of the third grounding point 3231 via an antenna switch as an example.

[0084] Referring to Figure 3, in some embodiments, the first isolation segment 323 further includes a third feed point 3232, which is spaced apart from the third ground point 3231 and electrically connected to the motherboard 50. Understandably, when the first isolation segment 323 has a third feed point 3232, the first isolation segment 323 can be a radiator of an antenna. For example, the first isolation segment 323 can be a radiator of a UWB antenna, i.e., an ultra-wideband (UWB) antenna. By setting the first isolation segment 323 as a radiator of a UWB antenna, UWB communication can be achieved. This application embodiment, by using the first isolation segment 323 as an antenna radiator, increases the antenna design freedom of the wearable device 100, which is beneficial for designing more communication specifications to meet the increasing user needs, and can improve the isolation between the first antenna radiator 321 and the second antenna radiator 322, achieving decoupling between the first antenna radiator 321 and the second antenna radiator 322.

[0085] In some embodiments, the third grounding point 3231 may be located at one end of the first isolation section 323 near the second gap 326, and the third power supply point 3232 may be located at one end of the first isolation section 323 near the third gap 327, which is beneficial to make full use of the length of the first isolation section 323.

[0086] In some embodiments, the antenna frequency band corresponding to the first antenna radiator 321 is less than the antenna frequency band corresponding to the first isolation section 323, or the antenna frequency band corresponding to the second antenna radiator 322 is less than the antenna frequency band corresponding to the first isolation section 323, or the antenna frequency band corresponding to the first antenna radiator 321 is less than the antenna frequency band corresponding to the first isolation section 323 and the antenna frequency band corresponding to the second antenna radiator 322 is less than the antenna frequency band corresponding to the first isolation section 323. This is beneficial for rationally arranging the antenna positions according to the antenna frequency bands, so as to take into account more communication specifications.

[0087] Understandably, in some preferred locations, the antenna frequency band corresponding to the first antenna radiator 321 can be set to be lower than the antenna frequency band corresponding to the first isolation section 323, and / or, the antenna frequency band corresponding to the second antenna radiator 322 can be set to be lower than the antenna frequency band corresponding to the first isolation section 323, so as to make full use of the advantageous positions of the antenna design of the wearable device 100. For example, when the first antenna radiator 321 and the second antenna radiator 322 are set near the 6 o'clock and 12 o'clock positions of the wearable device 100, the antenna performance corresponding to the first antenna radiator 321 and the second antenna radiator 322 is less affected by the arm, and the antenna frequency band corresponding to the first antenna radiator 321 can be designed to be lower than the antenna frequency band corresponding to the first isolation section 323, and / or, the antenna frequency band corresponding to the second antenna radiator 322 can be set to be lower than the antenna frequency band corresponding to the first isolation section 323.

[0088] Exemplarily, the first antenna radiator 321 is a radiator of at least one of a satellite communication antenna and a cellular antenna. The satellite communication antenna may include a satellite intercom antenna and a BeiDou satellite messaging antenna. It is understood that the first antenna radiator 321 can be any one, two, or three of the satellite intercom antenna, BeiDou satellite messaging antenna, and cellular antenna. By setting the first antenna radiator 321 to at least one of a satellite communication antenna and a cellular antenna, this embodiment of the application allows for flexible configuration of antenna types and the integration of multiple antennas, accommodating various communication specifications. The first antenna radiator 321 can also be a radiator of other antennas, such as a 5G antenna; the specific configuration can be determined as needed, and this embodiment of the application does not limit this.

[0089] For example, the second antenna radiator 322 is a radiator of at least one of a GPS antenna and a short-range communication antenna. Understandably, the short-range communication antenna may include a Bluetooth antenna and a WiFi antenna. The second antenna radiator 322 can be any one, two, or three of the GPS antenna, Bluetooth antenna, and WiFi antenna. By setting the second antenna radiator 322 to be at least one of a GPS antenna and a short-range communication antenna, this embodiment of the application allows for flexible configuration of antenna types and the integration of multiple antennas, accommodating various communication specifications. The second antenna radiator 322 can also be a radiator of other antennas, such as a 5G antenna; the specific configuration can be determined as needed, and this embodiment of the application does not limit this. The GPS antenna may include the L1 band and the L5 band of GPS.

[0090] In other embodiments, the antenna frequency band corresponding to the first antenna radiator 321 may also be greater than the antenna frequency band corresponding to the first isolation section 323, and / or, the antenna frequency band corresponding to the second antenna radiator 322 may also be greater than the antenna frequency band corresponding to the first isolation section 323.

[0091] Referring to Figure 3, in some embodiments, the extension length of the first antenna radiator 321 is greater than the extension length of the first isolation section 323; or, the extension length of the second antenna radiator 322 is greater than the extension length of the first isolation section 323; or, the extension length of both the first antenna radiator 321 and the second antenna radiator 322 is greater than the extension length of the first isolation section 323. The extension length of the first antenna radiator 321 can be understood as the extension length of the edge of the first antenna radiator 321 towards the motherboard 50; the extension length of the second antenna radiator 322 can be understood as the extension length of the edge of the second antenna radiator 322 towards the motherboard 50; and the extension length of the first isolation section 323 can be understood as the extension length of the edge of the first isolation section 323 towards the motherboard 50.

[0092] Understandably, the relatively long extension lengths of both the first antenna radiator 321 and the second antenna radiator 322 allow for flexible design of the number and location of feed points and grounding points, facilitating the configuration of different antenna types and enabling the integration of various antennas to accommodate multiple communication specifications. Furthermore, positioning the first antenna radiator 321 and the second antenna radiator 322 near the 6 o'clock and 12 o'clock positions of the wearable device 100 provides advantageous antenna design, allowing for longer extension lengths to fully utilize these advantageous positions.

[0093] In other embodiments, the extension length of the first antenna radiator 321 may also be less than the extension length of the first isolation section 323, and / or the extension length of the second antenna radiator 322 may also be less than the extension length of the first isolation section 323.

[0094] When the first antenna radiator 321 is a satellite communication antenna radiator, the first feed point 3211 can be located at the 9 o'clock to 12 o'clock position on the body 40. For example, the first feed point 3211 can be located at the 10 o'clock position on the body 40. Satellite communication antennas have relatively high requirements for their radiation pattern. This embodiment of the application, by setting the first feed point 3211 between the 9 o'clock and 12 o'clock positions on the body 40, can satisfy the left-hand circular polarization of the satellite communication antenna, thus meeting the performance requirements of the satellite communication antenna.

[0095] Referring to Figure 3, it can be understood that the first antenna radiator 321 includes a first end 3216 and a second end 3217, with the first end 3216 closer to the first slot 325 and the second end 3217 closer to the second slot 326. The first feed point 3211 is closer to the first end 3216 of the first antenna radiator 321. The distance between the first feed point 3211 and the first end 3216 is greater than or equal to 2 mm and less than or equal to 15 mm. For example, the distance between the first feed point 3211 and the first end 3216 is 3 mm, 4 mm, 5 mm, 6 mm, 8 mm, 10 mm, 12 mm, or 14 mm. The distance between the first feed point 3211 and the first end 3216 cannot be too close. If the distance between the first feed point 3211 and the first end 3216 is too close, the antenna will be difficult to excite, and the current at the end of the first antenna radiator 321 will be small and the impedance will be large, which is not conducive to matching. In this embodiment of the application, by setting the distance between the first feed point 3211 and the first end 3216 to be greater than or equal to 2 mm and less than or equal to 15 mm, it is beneficial to make full use of the first antenna radiator 321, and to make the antenna easy to be excited and have good performance.

[0096] The first grounding point 3212, the sixth grounding point 3213, and the seventh grounding point 3214 are located between the first feed point 3211 and the second gap 326. The first grounding point 3212, the sixth grounding point 3213, and the seventh grounding point 3214 can be evenly distributed or unequally spaced according to requirements. This embodiment does not limit the distribution of the first grounding point 3212, the sixth grounding point 3213, and the seventh grounding point 3214. The number of grounding points on the first antenna radiator 321 is not limited to three; it can also be one, two, or four, depending on the type of antenna and internal circuitry corresponding to the first antenna radiator 321. Understandably, a larger number of grounding points on the first antenna radiator 321 provides greater freedom in antenna tuning.

[0097] The first grounding point 3212, the sixth grounding point 3213, and the seventh grounding point 3214 can be electrically connected to the motherboard 50 through an inductor, a capacitor, or an antenna switch to achieve grounding. For example, the first grounding point 3212 can be grounded through an antenna switch, and the sixth grounding point 3213 and the seventh grounding point 3214 can be grounded through an inductor or a capacitor. The grounding methods of different grounding points of the first antenna radiator 321 can be set as needed. The grounding point of the first antenna radiator 321 can also be connected to the motherboard 50 without an inductor, capacitor, or antenna switch; this embodiment does not limit this.

[0098] Referring to Figure 3, when the second antenna radiator 322 serves as the radiator of the GPS antenna, the area between the two ends of the second antenna radiator 322 is used to position the 6 o'clock position of the wearable device 100. In other words, the 6 o'clock position of the wearable device 100 is located between the two ends of the second antenna radiator 322, meaning the second antenna radiator 322 passes through the 6 o'clock position of the wearable device 100. The GPS antenna needs to cover more user postures and more usage scenarios. When the second antenna radiator 322 serves as the radiator of the GPS antenna, by positioning the 6 o'clock position of the wearable device 100 between the two ends of the second antenna radiator 322, the GPS antenna has a better radiation pattern towards the 6 o'clock position, which is beneficial for the GPS antenna to have excellent performance.

[0099] In some embodiments, the second feed point 3221 is located between the 6 o'clock and 9 o'clock positions of the wearable device 100. For example, the second feed point 3221 is located at the 8 o'clock position of the wearable device 100. Since the GPS antenna only needs to receive signals and does not need to transmit them, good right-hand circular polarization is required. By setting the second feed point 3221 between the 6 o'clock and 9 o'clock positions of the wearable device 100, the right-hand circular polarization of the GPS antenna can be better, and it is easier to cover more user postures, meeting more usage scenarios.

[0100] The second grounding point 3222, the eighth grounding point 3223, and the ninth grounding point 3224 are located between the second feed point 3221 and the third gap 327. The second grounding point 3222, the eighth grounding point 3223, and the ninth grounding point 3224 can be evenly distributed or unequally spaced according to requirements. This embodiment does not limit the distribution of the second grounding point 3222, the eighth grounding point 3223, and the ninth grounding point 3224. The number of grounding points on the second antenna radiator 322 is not limited to three; it can also be one, two, or four, depending on the type of antenna and internal circuitry corresponding to the second antenna radiator 322. Understandably, a larger number of grounding points on the second antenna radiator 322 provides greater freedom in antenna tuning.

[0101] The second grounding point 3222, the eighth grounding point 3223, and the ninth grounding point 3224 can be electrically connected to the motherboard 50 through an inductor, a capacitor, or an antenna switch to achieve grounding. For example, the second grounding point 3222 and the eighth grounding point 3223 can be grounded through an antenna switch, and the ninth grounding point 3224 can be grounded through an inductor or a capacitor. The grounding methods of different grounding points of the second antenna radiator 322 can be set as needed. The grounding point of the second antenna radiator 322 can also be connected to the motherboard 50 without an inductor, capacitor, or antenna switch; this embodiment does not limit this.

[0102] In some embodiments, the second antenna radiator 322 may be provided with two feed points. One feed point may be located at the 8 o'clock position of the wearable device 100 and serve as the feed point for the GPS antenna, while the other feed point may be located at the 7 o'clock position of the wearable device 100 and serve as the feed point for both the Bluetooth antenna and the WiFi antenna.

[0103] In some embodiments, the fourth grounding point 3241 and the fifth grounding point 3242 of the second isolation segment 324 can be electrically connected to the motherboard 50 through an inductor, a capacitor, or an antenna switch to achieve grounding. For example, the fifth grounding point 3242 can be grounded through an antenna switch, and the fourth grounding point 3241 can be grounded through an inductor or a capacitor.

[0104] In some embodiments, the second isolation segment 324 may be provided with a fourth feed point (not shown in FIG3), the fourth feed point being spaced apart from the fourth ground point 3241 and electrically connected to the motherboard 50. It is understood that when the second isolation segment 324 is provided with a fourth feed point, the second isolation segment 324 can be a radiator of an antenna. By using the second isolation segment 324 as an antenna radiator, this embodiment of the application increases the antenna design freedom of the wearable device 100, facilitating the design of more communication specifications to meet the increasing user demands, and also improves the isolation between the first antenna radiator 321 and the second antenna radiator 322, achieving decoupling between the first antenna radiator 321 and the second antenna radiator 322.

[0105] Understandably, the first isolation section 323 may have a feed point and a ground point, and the first isolation section 323 serves as the radiator of the antenna. The first isolation section 323 may have a ground point but not a feed point. The second isolation section 324 may have a feed point and a ground point, and the second isolation section 324 serves as the radiator of the antenna. The second isolation section 324 may have a ground point but not a feed point.

[0106] The first antenna radiator 321 in this embodiment can meet the requirements of high antenna gain and beamwidth for satellite communication antennas and BeiDou satellite messaging antennas, as well as the requirements of antenna bandwidth and efficiency for cellular antennas. The second antenna radiator 322 can meet the requirements of antenna efficiency and radiation pattern coverage for L1 and L5 bands of GPS antennas. The first isolation section 323 can meet the requirements of bandwidth and efficiency for UWB antennas. In addition, good antenna isolation can be achieved between multiple antennas.

[0107] As shown in Figures 3, 6, and 7, Figure 6 is a partial structural schematic diagram of the wearable device 100 shown in Figure 1, and Figure 7 is an enlarged view of the structure at point X1 of the partial structure of the wearable device 100 shown in Figure 6. The antenna device 30 may include an insulating member 38. The insulating member 38 includes a main portion 381, a first filling portion, a second filling portion 382, ​​a third filling portion, a fourth filling portion, a fifth filling portion 383, and a sixth filling portion. The first filling portion, second filling portion, third filling portion, fourth filling portion, fifth filling portion, and sixth filling portion all protrude from the main portion 381. The first filling portion is located within a first gap, the second filling portion 382 is located within a second gap 326, the third filling portion is located within a third gap, the fourth filling portion is located within a first mounting hole, the fifth filling portion 383 is located within a second mounting hole 3292, and the sixth filling portion is located within a third mounting hole. Figure 7 shows an example where the second filling portion 382 is located within the second gap 326 and the fifth filling portion 383 is located within the second mounting hole 3292. The second filling part 382 is located inside the second gap 326, realizing the insulated connection between the first antenna radiator 321 and the first isolation section 323. The fifth filling part 383 is located in the second mounting hole 3292 and between the outer frame 32 and the second button 362, realizing the insulated connection between the second button 362 and the outer frame 32, and preventing the first antenna radiator 321 and the first isolation section 323 from being electrically connected through the second button 362.

[0108] Understandably, the insulating component 38 can be made of plastic, and nano-injection molding can be used to connect the insulating component 38 to the outer frame 32. The process is simple and the connection strength is high. The insulating component 38 connects the multiple metal segments of the outer frame 32 into one piece.

[0109] As shown in Figures 3, 8, and 9, Figure 8 is a schematic diagram of a portion of the structure of the wearable device 100 shown in Figure 3 from another angle, and Figure 9 is an enlarged view of the structure at point X2 of the portion of the wearable device 100 shown in Figure 8. The fourth slit 328 may include a first micro-slit 3281 and a second micro-slit 3282, which are spaced apart and both serve to separate the second isolation section 324 from the second antenna radiator 322. By dividing the relatively wide fourth slit 328 into the relatively narrow first micro-slit 3281 and second micro-slit 3282, it is beneficial to reduce the impact of the slit on the appearance of the wearable device 100. It is understood that any slit not located at a button and that has a significant impact on the appearance of the wearable device 100 can be configured as at least two micro-slits to reduce the impact of the slit on the appearance of the wearable device 100.

[0110] In some embodiments, the width of the first micro-slit 3281 can be greater than or equal to 0.15 mm and less than or equal to 0.6 mm. For example, the width of the first micro-slit 3281 can be 0.2 mm, 0.25 mm, 0.3 mm, 0.4 mm, or 0.5 mm. If the width of the first micro-slit 3281 is greater than 0.6 mm, the excessive width will affect the appearance of the wearable device 100. If the width of the first micro-slit 3281 is less than 0.15 mm, there will be large tolerances due to manufacturing processes. By setting the width of the first micro-slit 3281 to be greater than or equal to 0.15 mm and less than or equal to 0.6 mm, the impact of the slit on the appearance of the wearable device 100 is reduced, and the accuracy of the manufacturing process is improved.

[0111] Understandably, the width of the second micro-slit 3282 can be greater than or equal to 0.15 mm and less than or equal to 0.6 mm. For example, the width of the second micro-slit 3282 can be 0.2 mm, 0.25 mm, 0.3 mm, 0.4 mm, or 0.5 mm. The width of the first micro-slit 3281 can be the same as the width of the second micro-slit 3282 to improve the aesthetic appearance of the wearable device 100. In other embodiments, the width of the first micro-slit 3281 can also be different from the width of the second micro-slit 3282. The number of micro-slits in the fourth slit 328 is not limited, and the fourth slit 328 may also include a third micro-slit and a fourth micro-slit, etc.

[0112] The antenna device 30 includes a recess 3283, which can be located within at least one of the multiple slots of the outer frame 32, for example, the recess 3283 being located in the fourth slot 328. The recess 3283 is a groove, and by providing the recess 3283, it can be symmetrically distributed on both sides of the second microslot 3282 along with the first microslot 3281, increasing symmetry and improving the aesthetic appearance of the wearable device 100. The width of the recess 3283 can be greater than or equal to 0.15 mm and less than or equal to 0.6 mm. For example, the width of the recess 3283 can be 0.2 mm, 0.25 mm, 0.3 mm, 0.4 mm, or 0.5 mm.

[0113] Figure 9 shows an example of the first micro-slit 3281, the second micro-slit 3282, and the recess 3283 arranged in sequence. In other embodiments, the recess 3283 may also be located between the first micro-slit 3281 and the second micro-slit 3282.

[0114] Referring to Figures 3 and 6, the antenna device 30 may include an ink layer 39, which may be located inside at least one of the multiple slits in the outer frame 32. The outer surface of the ink layer 39 may be flush with the outer surface of the outer frame 32. At least one of the first slit 325, the second slit 326, the third slit 327, and the fourth slit 328 may be provided with an ink layer 39. Taking the fourth slit 328 as an example, the first micro-slit 3281, the second micro-slit 3282, and the recess 3283 are all provided with filling portions of the insulating member 38, and the ink layer 39 may be disposed on the surface of the filling portions. When the fourth slit 328 is provided with an ink layer 39, the ink layer 39 may be located inside at least one of the first micro-slit 3281, the second micro-slit 3282, and the recess 3283. Different colors of ink layers may be provided according to appearance requirements to beautify the outer frame 32 and improve the aesthetic appearance of the wearable device 100.

[0115] Referring to the embodiments shown in Figures 1 to 9, and referring to Figure 10, which is a structural schematic diagram of another antenna device 30, in other embodiments, the outer frame 32 may not include the second isolation section 324 and the fourth slot 328. The first slot 325, the second slot 326, and the third slot 327 divide the outer frame 32 into a first antenna radiator 321, a second antenna radiator 322, and a first isolation section 323. The first slot 325 is located at the first button 361, the second slot 326 is located at the second button 362, the third slot 327 is located at the third button 363, and the first isolation section 323 is located between the 2 o'clock and 4 o'clock positions of the wearable device 100.

[0116] Referring to the embodiments shown in Figures 1 to 9, and referring to Figure 11, which is a structural schematic diagram of another antenna device 30, in other embodiments, the outer frame 32 may not include the second isolation section 324 and the fourth slot 328. The first slot 325, the second slot 326, and the third slot 327 divide the outer frame 32 into a first antenna radiator 321, a second antenna radiator 322, and a first isolation section 323. The first slot 325 is located at the first button 361, the second slot 326 is located at the second button 362, the third slot 327 is located at a non-button location, and the first isolation section 323 is located between the 8 o'clock and 10 o'clock positions of the wearable device 100.

[0117] Understandably, when the outer frame 32 does not include the second isolation section 324 and the fourth gap 328, the first antenna radiator 321, the second antenna radiator 322 and the first isolation section 323 can also be distributed in other positions, and the embodiments of this application do not limit this.

[0118] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An antenna device (30) for application to a surface body (40), characterized by The antenna device (30) includes an outer frame (32) for surrounding the edge of the main board (50) of the body (40). The outer frame (32) includes at least three slits (325, 326, 327) that divide the outer frame (32) into a first antenna radiator (321), a first isolation section (323), and a second antenna radiator (322). The first antenna radiator (321) includes a first feed point (3211) and a first ground point (3212) spaced apart, and both the first feed point (3211) and the first ground point (3212) are electrically connected to the main board (50); The second antenna radiator (322) includes a second feed point (3221) and a second ground point (3222) spaced apart, and both the second feed point (3221) and the second ground point (3222) are electrically connected to the main board (50); The first isolation segment (323) includes a third grounding point (3231), which is electrically connected to the motherboard (50). The first isolation segment (323) is used to improve the isolation between the first antenna radiator (321) and the second antenna radiator (322).

2. The antenna device (30) of claim 1, characterized by The third grounding point (3231) is located at the end of the first isolation section (323).

3. The antenna device (30) according to claim 1 or 2, characterized in that The first isolation section (323) includes a third power supply point (3232), which is spaced apart from the third grounding point (3231) and electrically connected to the motherboard (50).

4. The antenna device (30) of claim 3, characterized by The antenna frequency band corresponding to the first antenna radiator (321) is less than the antenna frequency band corresponding to the first isolation section (323), and / or, the antenna frequency band corresponding to the second antenna radiator (322) is less than the antenna frequency band corresponding to the first isolation section (323).

5. The antenna device (30) of claim 4, characterized by The extension length of the first antenna radiator (321) is greater than the extension length of the first isolation section (323), and / or the extension length of the second antenna radiator (322) is greater than the extension length of the first isolation section (323).

6. The antenna device (30) according to any one of claims 3-5, characterized by The first isolation section (323) is the radiator of the UWB antenna.

7. The antenna device (30) according to any one of claims 1-6, characterized by The first antenna radiator (321) is a radiator of a satellite communication antenna, and the first feed point (3211) is located between the 9 o'clock position and the 12 o'clock position of the body (40).

8. The antenna device (30) of claim 7, characterized by The first feed point (3211) is closer to the first end (3216) of the first antenna radiator (321), and the distance between the first feed point (3211) and the first end (3216) is greater than or equal to 2 mm and less than or equal to 15 mm.

9. The antenna device (30) according to any one of claims 1-8, characterized by The second antenna radiator (322) is a radiator of a GPS antenna, and the two ends of the second antenna radiator (322) are used to set the 6 o'clock position of the watch body (40).

10. The antenna device (30) of claim 9, characterized by The second power supply point (3221) is located between the 6 o'clock and 9 o'clock positions on the body (40).

11. The antenna device (30) according to any one of claims 1-10, characterized by The first antenna radiator (321) is a radiator of at least one of a satellite communication antenna and a cellular antenna.

12. The antenna device (30) according to any one of claims 1-11, characterized by The second antenna radiator (322) is a radiator of at least one of a GPS antenna and a short-range communication antenna.

13. The antenna device (30) according to any one of claims 1-12, characterized by The gaps (325, 326, 327, 328) separating the outer frame (32) also form a second isolation section (324). The second isolation section (324) is located between the first antenna radiator (321) and the second antenna radiator (322). The second isolation section (324) is provided with a fourth grounding point (3241). The fourth grounding point (3241) is electrically connected to the motherboard (50) to improve the isolation between the first antenna radiator (321) and the second antenna radiator (322).

14. The antenna device (30) according to claim 13, characterized by The second isolation segment (324) is spaced apart from the first isolation segment (323).

15. The antenna device (30) according to claim 13 or 14, characterized by The second isolation segment (324) includes a fifth grounding point (3242), which is located at both ends of the second isolation segment (324) and the fourth grounding point (3241). The fifth grounding point (3242) is electrically connected to the motherboard (50).

16. The antenna device (30) according to any one of claims 1-15, characterized by The first antenna radiator (321) includes a first lug (3215) for connecting to the first strap (10) of the wearable device (100), and the second antenna radiator (322) includes a second lug (3225) for connecting to the second strap (20) of the wearable device (100).

17. The antenna device (30) according to any one of claims 1-16, characterized by The outer frame (32) is provided with mounting holes (3291, 3292, 3293), which are used to mount the buttons (361, 362, 363) of the watch body (40). At least one of the multiple gaps of the outer frame (32) communicates with the mounting holes (3291, 3292, 3293).

18. The antenna device (30) according to claim 17, characterized by The antenna device (30) includes an insulating element (38) located between the outer frame (32) and the buttons (361, 362, 363).

19. The antenna device (30) according to any of claims 1-18, characterized by An ink layer (39) is provided in at least one of the multiple slits of the outer frame (32), the ink layer (39) being used to form the outer surface of the body (40).

20. The antenna device (30) according to any of claims 1-19, characterized by The antenna device (30) includes a recess (3283) located within at least one of the plurality of slits in the outer frame (32).

21. A panel (40) characterized by, It includes a motherboard (50) and an antenna device (30) as described in any one of claims 1-20, wherein the antenna device (30) is electrically connected to the motherboard (50).

22. A wearable device (100), characterized by Includes a first watch strap (10), a second watch strap (20), and a watch body (40) as described in claim 21, wherein the first watch strap (10) is connected to a first lug (3215) of the watch body (40), and the second watch strap (20) is connected to a second lug (3225) of the watch body (40).

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