Wrist-worn device

Abstract

The invention provides wrist-worn equipment. The wrist-worn equipment comprises a shell, a first pair of ear body parts, a first connecting part and a first antenna radiator, the first pair of ear body parts is arranged on the periphery of the shell and used for being connected with a wrist strap in a matched mode, and the first pair of ear body parts comprises a first ear body part and a second ear body part which are spaced from each other; the first connecting part is connected between the first ear body part and the second ear body part; the first antenna radiator is at least partially arranged on the first connecting part, the first antenna radiator is used for supporting communication of the Sub 1G frequency band, and the frequency range of the Sub 1G frequency band is 100 MHz to 1 GHz. Therefore, the influence of electronic components such as a mainboard in the wristwatch on the radiation efficiency of the first antenna radiator can be reduced, and due to the fact that the electrical length of the first antenna radiator supporting communication in the frequency band of 100 MHz to 1 GHz is long, the first antenna radiator can be arranged more conveniently due to the existence of the first connecting part.

Description

Technical Field

[0001] The present application relates to the field of antenna technology, and in particular to a wrist-worn device. Background Art

[0002] Current wristwatches are relatively small in size, and the motherboard and other electronic components inside the wristwatch easily occupy the antenna clearance area, interfering with the antenna's signal transmission, resulting in poor antenna communication quality. Summary of the invention

[0003] To this end, the present application provides a wrist-worn device to solve the above-mentioned technical problems.

[0004] The present application provides a wrist-worn device, which includes a shell, a first pair of ear bodies, a first connecting portion, and a first antenna radiator; the first pair of ear bodies are arranged on the outer periphery of the shell, and are used to cooperate with a wristband for connection, and the first pair of ear bodies include a first ear body portion and a second ear body portion that are spaced apart from each other; the first connecting portion is connected between the first ear body portion and the second ear body portion; the first antenna radiator is at least partially arranged on the first connecting portion, and the first antenna radiator is used to support communication in the Sub 1G frequency band, wherein the frequency range of the Sub 1G frequency band is 100MHz~1GHz.

[0005] In the present application, since the wrist-worn device includes the first connecting portion connected between the first ear body portion and the second ear body portion, the first pair of ear body portions are arranged on the periphery of the shell, and the first connecting portion is also located on the outside of the shell, therefore, at least a portion of the first antenna radiator that supports communication in the 100MHz~1GHz frequency band is arranged on the first connecting portion, which can reduce the influence of electronic components such as the motherboard in the watch on the radiation efficiency of the first antenna radiator, and since the required size of the first antenna radiator that supports communication in the 100MHz~1GHz frequency band is often longer, the presence of the first connecting portion meets the requirement of setting a larger-sized first antenna radiator, and the first antenna radiator can be more conveniently set on the outside of the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the implementation manner will be briefly introduced below. Obviously, the drawings described below are some implementation manners of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0007] Figure 1 A schematic diagram of the structure of a wrist-worn device from a frontal perspective provided in some embodiments of the present application; Figure 2 A schematic diagram of the structure of a wrist-worn device from a rear perspective provided in some embodiments of the present application; Figure 3 A structural block diagram of a wrist-worn device provided in some embodiments of the present application; Figure 4 A schematic diagram of the structure of a wrist-worn device from a rear perspective provided in some other embodiments of the present application; Figure 5 A structural block diagram of a second antenna radiator provided in some embodiments of the present application; Figure 6 A schematic diagram of a structure in which a third antenna radiator is shared provided in some embodiments of the present application; Figure 7 A schematic diagram of current distribution when supporting Beidou satellite positioning frequency bands provided in some embodiments of the present application; Figure 8 A schematic diagram of a structure in which a third antenna radiator is shared in some other embodiments of the present application. DETAILED DESCRIPTION

[0008] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0009] In the description of this application, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, an indirect connection through an intermediate medium, or the internal connection of two components; it can be a communication connection; it can be an electrical connection. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0010] In the description of the present application, the terms "first", "second", "third", etc. are used to distinguish different objects rather than to describe a specific order. In addition, the terms "upper", "lower", "inner", "outer", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present application.

[0011] Please refer to Figure 1 and Figure 2 , Figure 1A schematic diagram of the structure of a wrist-worn device from a frontal perspective provided in some embodiments of the present application; Figure 2 A schematic diagram of the structure of a wrist-worn device from a rear perspective provided in some embodiments of the present application.

[0012] like Figure 1 and Figure 2 As shown, in some embodiments, the wrist-worn device 100 includes a shell 10, a first pair of ear bodies 20, a first connecting portion 30 and a first antenna radiator 40; the first pair of ear bodies 20 are arranged on the outer periphery of the shell 10, for being connected with the wristband 50, and the first pair of ear bodies 20 include a first ear body 21 and a second ear body 22 spaced apart from each other; the first connecting portion 30 is connected between the first ear body 21 and the second ear body 22; the first antenna radiator 40 is at least partially arranged on the first connecting portion 30, and the first antenna radiator 40 is used to support communication in the Sub 1G frequency band, wherein the frequency range of the Sub 1G frequency band is 100MHz~1GHz.

[0013] In the present application, since the wrist-worn device 100 includes the first connecting portion 30 connected between the first ear body portion 21 and the second ear body portion 22, the first pair of ear body portions 20 are arranged on the periphery of the shell 10, that is, the first connecting portion 30 is also located on the outside of the shell 10. Therefore, at least a portion of the first antenna radiator 40 that supports communication in the 100MHz~1GHz frequency band is arranged on the first connecting portion 30, which can reduce the influence of electronic components such as the motherboard in the wrist-worn device 100 on the radiation efficiency of the first antenna radiator 40. Moreover, since the size required for the first antenna radiator 40 that supports communication in the 100MHz~1GHz frequency band is often longer, the presence of the first connecting portion 30 can meet the setting requirements of a larger-sized first antenna radiator 40, and the first antenna radiator 40 can be more conveniently set on the outside of the shell 10.

[0014] The wrist-worn device 100 may be, but is not limited to, an electronic device such as a watch or a bracelet.

[0015] The first antenna radiator 40 being used to support communication in the Sub 1G frequency band may refer to, but is not limited to, that the electrical length of the first antenna radiator 40 supports communication in the Sub 1G frequency band.

[0016] The first connecting portion 30 may be made of insulating material / non-conductive material, for example, may be made of insulating material such as plastic material, glass material or ceramic material.

[0017] Among them, the first ear body portion 21 and the second ear body portion 22 can be made of metal or insulating material. When the first ear body portion 21, the second ear body portion 22 and the first connecting portion 30 are made of the same material, the first ear body portion 21, the second ear body portion 22 and the first connecting portion 30 can be an integrally formed structure. When the first ear body portion 21, the second ear body portion 22 and the first connecting portion 30 are made of different materials, the first ear body portion 21, the second ear body portion 22 and the first connecting portion 30 can be connected by welding, hot pressing, clamping, etc.

[0018] In some embodiments, Figure 1 and Figure 2 As shown, the wrist-worn device 100 includes a second pair of ear bodies 60, and the second pair of ear bodies 60 includes a third ear body portion 61 and a fourth ear body portion 62, wherein the second pair of ear bodies 60 and the first pair of ear bodies 20 can be relatively arranged on both sides of the shell 10, that is, the second pair of ear bodies 60 and the first pair of ear bodies 20 are axially symmetrically arranged. For example, when the wrist-worn device 100 is worn on the user's arm, the first pair of ear bodies 20 and the second pair of ear bodies 60 are symmetrical about the axis of the length direction of the arm.

[0019] like Figure 1 and Figure 2 As shown, the wrist-worn device 100 further includes a second connecting portion 90 , and the second connecting portion 90 is connected to the third ear body portion 61 and the fourth ear body portion 62 .

[0020] In some embodiments, the assembly of the first ear body portion 21 , the second ear body portion 22 and the first connecting portion 30 and the assembly of the third ear body portion 61 , the fourth ear body portion 62 and the second connecting portion 90 are axisymmetric structures.

[0021] In some embodiments, the second connection portion 90, the third ear body portion 61, and the fourth ear body portion 62 are located at the top side A of the wrist-worn device 100, and the first ear body portion 21, the second ear body portion 22, and the first connection portion 30 are located at the bottom side B of the wrist-worn device 100. The top side A is the side away from the user when the wrist-worn device 100 is correctly worn by the user and the arm is kept horizontal, and the bottom side B is the side close to the user when the wrist-worn device 100 is correctly worn by the user and the arm is kept horizontal.

[0022] In other embodiments, the second connecting portion 90, the third ear body portion 61 and the fourth ear body portion 62 may be located on the bottom side B of the wrist-worn device 100, and the first ear body portion 21, the second ear body portion 22 and the first connecting portion 30 may be located on the top side A of the wrist-worn device 100.

[0023] In some embodiments, the Sub 1G frequency band may be a 400 MHz frequency band, and the first antenna radiator 40 is used to support short-range communication in the 400 MHz frequency band, where the short-range communication is communication with a communication distance less than or equal to 5 kilometers.

[0024] Thus, the wrist-worn device 100 can realize wireless communication with other electronic devices within a range of less than or equal to 5 kilometers without the need for cellular communication, which facilitates application in some scenarios. For example, in remote areas where the cellular communication signal is poor, wireless communication can be carried out with other electronic devices through the small-range communication in the 400MHz frequency band supported by the first antenna radiator 40 in this application, thereby ensuring the reliability of the communication connection.

[0025] In some embodiments, the 400 MHz frequency band may be a frequency band corresponding to a certain frequency range with a resonance frequency of 400 MHz, for example, a frequency band corresponding to a frequency range of 300-500 MHz with a resonance frequency of 400 MHz.

[0026] In other embodiments, the first antenna radiator 40 may also support other frequency bands in the Sub 1G frequency band, or may support communications in other frequency bands outside the Sub 1G frequency band, which is not limited to the examples in the embodiments of this document.

[0027] In some embodiments, the first ear body portion 21 and / or the second ear body portion 22 are also made of insulating materials, such as plastic, glass, or ceramic. Figure 1 and Figure 2 As shown, the first antenna radiator 40 includes at least a first radiating segment 41 and a second radiating segment 42 connected to the first radiating segment 41, the first radiating segment 41 is arranged in the first connecting portion 30, and the second radiating segment 42 is arranged in the first ear body portion 21 and / or the second ear body portion 22.

[0028] Since the first connection portion 30, the first ear body portion 21 and the second ear body portion 22 are all arranged outside the housing 10, the first radiation section 41 of the first antenna radiator 40 is arranged in the first connection portion 30, and the second radiation section 42 is arranged in the first ear body portion 21 or the second ear body portion 22, which can further reduce the influence of electronic components such as the motherboard in the wrist-worn device 100 on the radiation efficiency of the first antenna radiator 40. By arranging part of the first antenna radiator 40 in the first connection portion 30 and the other part in the first ear body portion 21 and / or the second ear body portion 22, the installation space required for the first antenna radiator 40 can be better met.

[0029] In other embodiments, the first antenna radiator 40 may also be entirely disposed in the first connecting portion 30 .

[0030] Among them, there is an angle between the first radiating section 41 and the second radiating section 42, the first radiating section 41 can be a strip, and in the first connecting portion 30 can be but not limited to a straight line, a broken line or a curve, etc., or, the first radiating section 41 can also be a square, similar to a patch antenna, etc., which is not limited here.

[0031] Please refer to Figure 1-Figure 3 , Figure 3 A structural block diagram of a wrist-worn device provided for some embodiments of the present application.

[0032] In some embodiments, Figure 3 As shown, the wrist-worn device 100 further includes a feed source 70 , which is disposed in the housing 10 , and is connected to the first radiation segment 41 or to the second radiation segment 42 , wherein the feed source 70 is used to provide a feed signal.

[0033] Since the first radiating section 41 is connected to the second radiating section 42 , the first antenna radiator 40 can be excited by the feeding signal when the feed source 70 is connected to the first radiating section 41 or the second radiating section 42 .

[0034] The feed source 70 may also be connected to the first radiation section 41 or the second radiation section 42 via a connecting piece such as a spring.

[0035] In some embodiments, the entire first antenna radiator 40 may be suspended, that is, not grounded, and the first antenna radiator 40 forms a monopole antenna. In some embodiments, one end of the first antenna radiator 40 is grounded, and a portion close to the other end is connected to the feed source 70 to form an inverted F antenna. For example, the end of the first radiating segment 41 that is not connected to the second radiating segment 42 is grounded, and the feed source 70 is connected to a certain position on the second radiating segment 42.

[0036] Among them, Figure 3As shown, the wrist-worn device 100 may further include a circuit board 71, a radio frequency front end module (RFFEM) 72, a radio frequency integrated circuit (RFIC) 73, and a baseband processor 74, etc. The circuit board 71, the RF front end module 72, the RF integrated circuit 73, and the baseband processor 74 may all be disposed in the housing 10, and the RF front end module 72, the RF integrated circuit 73, and the baseband processor 74 may all be disposed on the circuit board 71, and the feed source 70 is also connected to the RF front end module 72.

[0037] Exemplarily, in a transmission scenario, the baseband processor 74 synthesizes the data (digital signal) to be transmitted into a baseband signal, and modulates the baseband signal into a baseband modulated signal and sends it to the RF integrated circuit 73. The RF integrated circuit 73 converts the baseband modulated signal into an RF transmission signal. The RF transmission signal is mixed, amplified, filtered, and processed by the RF front-end module 72 and then transmitted to the feed source 70. The first antenna radiator 40 can convert the feed signal from the feed source 70 into an electromagnetic wave for radiation.

[0038] Exemplarily, in a receiving scenario, the first antenna radiator 40 can receive electromagnetic waves, convert the electromagnetic waves into electrical signals and transmit them to the feed source 70, and through the RF front-end module 72 connected to the feed source 70, switch to the corresponding receiving link through a device with a switching function in the RF front-end module 72, amplify, filter, mix and other processes the RF signal through the receiving link, and then send the RF signal to the RF integrated circuit 73, the RF integrated circuit 73 processes the RF signal into a baseband modulated signal, and transmits the baseband modulated signal to the baseband processor 74, the baseband processor 74 converts the baseband modulated signal into a baseband signal, and determines the information carried in the electromagnetic wave after converting the baseband signal into data.

[0039] In some embodiments, the first radiation section 41 is disposed inside the first connecting portion 30 and is sealed and wrapped by the first connecting portion 30, and the second radiation section 42 is disposed inside the first ear body portion 21 and / or the second ear body portion 22 and is sealed and wrapped by the first ear body portion 21 and / or the second ear body portion 22.

[0040] Thus, the first radiation section 41 and the second radiation section 42 can be prevented from being exposed, thereby preventing the first radiation section 41 and the second radiation section 42 from coming into contact with liquids, etc., and at the same time, it is beneficial for the appearance of the first connecting part 30, the first ear body part 21 and the second ear body part 22 of the wrist-worn device 100 to have a larger design space.

[0041] The first antenna radiator 40 may be an LDS (Laser Direct Structuring) antenna. The first radiating section 41 may be formed inside the first connecting portion 30 by secondary injection molding, so that the first radiating section 41 is sealed and wrapped by the first connecting portion 30; the second radiating section 42 may be formed inside the first ear body portion 21 and / or the second ear body portion 22 by secondary injection molding, so that the second radiating section 42 is sealed and wrapped by the first ear body portion 21 and / or the second ear body portion 22.

[0042] In some embodiments, Figure 1 and Figure 2 As shown, the first connecting portion 30 is plate-shaped, the housing 10 includes a bottom shell 11 and a side frame 12, the bottom shell 11 is connected to the side frame 12, the first pair of ear bodies 20 are arranged on the outer periphery of the side frame 12, and the first connecting portion 30 is inclined relative to the bottom shell 11.

[0043] Due to the characteristics of electromagnetic waves, horizontally polarized signals will generate polarization currents on the earth's surface when they are close to the ground. The polarization current generates heat energy due to the influence of the earth's impedance, causing the electric field signal to decay rapidly. However, vertical polarization is not easy to generate polarization currents. Therefore, when the wrist-worn device 100 is worn on the arm and the arm is placed horizontally relative to the ground, the bottom shell 11 is horizontal relative to the ground, the first connecting portion 30 is tilted relative to the bottom shell 11, and the first antenna radiator 40 is at least partially arranged on the first connecting portion 30. This allows the electromagnetic waves emitted by at least part of the first antenna radiator 40 to have a component in the vertical direction, thereby reducing the polarization current, avoiding significant energy attenuation, and ensuring effective signal propagation.

[0044] The side frame 12 is in a ring shape, specifically, it may be, but not limited to, a circular ring shape or a rectangular ring shape.

[0045] In some embodiments, Figure 1 As shown, the shell 10 also includes an upper cover 13, and the upper cover 13 includes a display screen. The display screen can be but is not limited to an organic light emitting diode (OLED) display screen, a liquid crystal display (LCD) screen, an LED display screen (for example, including a Micro-LED display screen, a Mini-LED display screen), etc. The upper cover 13 is connected to a side of the side frame 12 away from the bottom shell 11.

[0046] The bottom shell 11, the side frame 12 and the upper cover 13 are arranged to form a cavity (not shown). In a correct wearing method, the bottom shell 11 is closer to the arm than the upper cover 13.

[0047] Among them, the upper cover 13 can be but not limited to circular, elliptical, rectangular or irregular shapes, the side frame 12 can be but not limited to circular rings, rectangular rings, etc., and the bottom shell 11 can also be but not limited to circular, elliptical, rectangular or irregular shapes, etc.

[0048] In some embodiments, the first connecting portion 30 is connected between the first ear body portion 21 and the second ear body portion 22 , and is connected to the outer periphery of the side frame 12 .

[0049] Compared with the gap between the first connecting part 30 and the outer periphery of the side frame 12, since the first connecting part 30 is connected to the outer periphery of the side frame 12, the first radiating section 41 is arranged inside the first connecting part 30. Therefore, the connection between the feed source 70 and the first radiating section 41 does not need to be connected to the first radiating section 41 through a feeder through the first ear body part 21 or the second ear body part 22, thereby simplifying the connection path between the feed source 70 and the first radiating section 41.

[0050] In other embodiments, the first connection portion 30 may also be spaced apart from the side frame 12 .

[0051] In some embodiments, the first connection portion 30 is connected to the outer periphery of the first end of the side frame 12 away from the bottom shell 11, and the first connection portion 30 extends from the first end of the side frame 12 in a direction away from the side frame 12 and close to the plane where the bottom shell 11 is located.

[0052] Since the bottom shell 11 is closer to the arm than the upper cover 13 in the correct wearing method, the first connecting portion 30 is connected to the periphery of the first end of the side frame 12 away from the bottom shell 11, and the first connecting portion 30 extends from the first end of the side frame 12 in a direction away from the side frame 12 and close to the plane where the bottom shell 11 is located, which is convenient for wearing and can ensure that the first connecting portion 30 is inclined relative to the bottom shell 11, so that at least part of the electromagnetic waves emitted by the first antenna radiator 40 have a component in the vertical direction, thereby reducing the polarization current, avoiding a significant attenuation of energy, and ensuring effective signal propagation.

[0053] In some embodiments, Figure 1 and Figure 2As shown, the first connection portion 30 includes a first surface 301 and a second surface 302 opposite to each other. The first surface 301 is farther away from the bottom shell 11 than the second surface 302 . A side edge of the first surface 301 close to the side frame 12 is connected to a side of the side frame 12 away from the bottom shell 11 .

[0054] The first surface 301 and the second surface 302 may be curved surfaces. In other embodiments, at least one of the first surface 301 and the second surface 302 may also be a flat surface.

[0055] In some embodiments, a side edge of the second surface 302 away from the side frame 12 and a bottom surface of the bottom shell 11 away from the side frame 12 are located in the same plane.

[0056] Thus, the first connection portion 30 can have a larger area while being comfortable to wear, so as to facilitate the arrangement of at least a part of the first antenna radiator 40 .

[0057] In some embodiments, Figure 1 and Figure 2 As shown, the wrist-worn device 100 further includes a spring ear 80 and a wristband 50, the two ends of the spring ear 80 are respectively connected to the first ear body 21 and the second ear body 22, the spring ear 80 is connected to the wristband 50, the first connecting portion 30 includes a first connecting plate 31, the first connecting plate 31 includes a first surface 301 and a second surface 302 opposite to each other, the first surface 301 is farther from the bottom shell 11 than the second surface 302, and the first surface 301 is farther from the spring ear 80 than the second surface 302.

[0058] in, Figure 2 The structure between the first ear body portion 21 and the second ear body portion 22 is the same as the structure between the third ear body portion 61 and the fourth ear body portion 62, and can be understood by comparison. However, it should be understood that in other embodiments, the structure between the first ear body portion 21 and the second ear body portion 22 may be different from the structure between the third ear body portion 61 and the fourth ear body portion 62.

[0059] Since the bottom shell 11 is closer to the arm than the upper cover 13 in the correct wearing method, the spring ear 80 and part of the wristband 50 are located between the first connecting plate 31 and the arm in the correct wearing method, so that the spring ear 80 is not visible after wearing, making the appearance of the wrist-worn device 100 more concise after wearing.

[0060] In some embodiments, the wristband 50 has an axial hole (not marked) in the width direction, the ear 80 is inserted into the axial hole, and both ends extend out of the axial hole and are respectively connected to the first ear body 21 and the second ear body 22, wherein the width direction can be the connecting direction of the first ear body 21 and the second ear body 22.

[0061] In other embodiments, after being worn, the ear 80 may also be exposed, that is, the first connecting plate 31 and the ear 80 are arranged side by side between the first ear body 21 and the second ear body 22 along the extending direction of the wristband 50 .

[0062] Please refer to Figure 2 and Figure 4 , Figure 4 A schematic diagram of the structure of a wrist-worn device from a rear perspective provided in some other embodiments of the present application.

[0063] Similar to the above embodiments, but different, in some embodiments, such as Figure 4 As shown, the first connection portion 30 also includes a second connection plate 32 , the spring ear 80 is located between the first connection plate 31 and the second connection plate 32 , and at least a portion of the first antenna radiator 40 is disposed on the first connection plate 31 and / or in the second connection plate 32 .

[0064] Thus, at least a portion of the first antenna radiator 40 may be disposed on the first connecting plate 31 and / or the second connecting plate 32 , and the first connecting portion 30 has a larger area for disposing the first antenna radiator 40 .

[0065] The first connecting plate 31 and the second connecting plate 32 may be spaced apart from each other.

[0066] In other embodiments, when the first connecting portion 30 only includes the first connecting plate 31 , that is, does not include the second connecting plate 32 , it is helpful to reduce the weight of the wrist-worn device 100 .

[0067] In some embodiments, Figure 1 and Figure 2 As shown, the wrist-worn device 100 further includes a second antenna radiator 91 and a third antenna radiator 92 , wherein the second antenna radiator 91 supports the Beidou satellite communication frequency band, and the third antenna radiator 92 supports the Beidou satellite positioning frequency band.

[0068] By setting the first antenna radiator 40, the second antenna radiator 91 and the third antenna radiator 92, communication in the Sub 1G frequency band, Beidou satellite communication and Beidou satellite positioning can be achieved. Since Beidou satellite communication can be achieved, it can better meet the needs of users to communicate in some areas without base station coverage. Since Beidou satellite positioning can be achieved, it is more conducive to users to record tracks, view maps, etc. Since Sub 1G frequency band communication can be achieved, compared with 2.4GHz communication, small-range communication can be achieved while the transmission distance is longer, the power consumption is lower, and the anti-interference is stronger, thereby simultaneously meeting the needs of users for Beidou satellite communication, Beidou satellite positioning and small-range low-power communication through the wrist-worn device 100.

[0069] Among them, the Beidou satellite communication frequency band includes L band and S band, the L band is 1616.0 MHz~1626.5 MHz, and the S band is 2483.5 MHz~2495.0 MHz.

[0070] Among them, the Beidou satellite positioning frequency band includes B1 band, B2 band and B3 band, the B1 band is 1561.098 MHz~1591.789 MHz, the B2 band is 1207.140 MHz~1242.390 MHz, and the B3 band is 1268.520 MHz~1298.170 MHz.

[0071] In some embodiments, the second antenna radiator 91 and the third antenna radiator 92 may be at least partially disposed on the second connecting portion 90 .

[0072] In some embodiments, the second antenna radiator 91 is at least partially disposed on the second connection portion 90 , and the third antenna radiator 92 is at least partially disposed on the second connection portion 90 .

[0073] In some embodiments, the side where the second connection portion 90 is located is the side away from the human body when the wrist-worn device 100 is worn on the wrist, and the side where the first connection portion 30 is located is the side close to the human body when the wrist-worn device 100 is worn on the wrist.

[0074] See also Figure 5 , Figure 5 A structural block diagram of a second antenna radiator provided in some embodiments of the present application.

[0075] In some embodiments, Figure 5As shown, the second antenna radiator 91 includes a receiving radiator 911 and a transmitting radiator 912. The receiving radiator 911 is used to resonate in the Beidou satellite communication receiving frequency band and can receive Beidou satellite communication signals. The transmitting radiator 912 is used to resonate in the Beidou satellite communication transmitting frequency band and can transmit / send Beidou satellite communication signals.

[0076] Thus, the user can send information to the Beidou satellite through the Beidou satellite communication transmitting radiator 912 of the wrist-worn device 100 , and can also receive information sent by the Beidou satellite through the Beidou satellite communication receiving radiator 911 .

[0077] See also Figure 6 , Figure 6 A schematic diagram of a structure in which a third antenna radiator is shared in some embodiments of the present application.

[0078] In some embodiments, Figure 6 As shown, the third antenna radiator 92 includes a grounding point G1, a feeding point S1 and a first connection point M1, the grounding point G1 is used for grounding, and the feeding point S1 is used to access the feeding signal; the receiving radiator 911 includes a third radiator segment 911a and a fourth radiator segment 911b, the third radiator segment 911a is connected to the first connection point M1 of the third antenna radiator 92, and the fourth radiator segment 911b is the radiator segment between the grounding point G1 and the first connection point M1 in the third antenna radiator 92.

[0079] Therefore, by making the antenna supporting the Beidou satellite communication receiving frequency band and the antenna supporting the Beidou satellite positioning frequency band share the receiving radiator 911, the space occupied by the antenna structure is reduced, which is conducive to miniaturization of the wrist-worn device 100.

[0080] in, Figure 6 It is also illustrated that when the Beidou satellite positioning frequency band is supported, the generated current i1 is distributed along the third antenna radiator 92, that is, the electrical length of the third antenna radiator 92 is 1 / 4 of the wavelength corresponding to the Beidou satellite positioning frequency band. That is, in some embodiments, the electrical length of the third antenna radiator 92 meets the requirement of resonance in the Beidou satellite positioning frequency band, and supports communication in the Beidou satellite positioning frequency band.

[0081] See also Figure 7 , Figure 7 A schematic diagram of current distribution when supporting the Beidou satellite positioning frequency band provided in some embodiments of the present application.

[0082] like Figure 7As shown, when supporting the Beidou satellite communication receiving frequency band, the generated current i2 is distributed along the fourth radiator segment 911b and the third radiator segment 911a, that is, the sum of the electrical lengths of the fourth radiator segment 911b and the third radiator segment 911a is 1 / 4 of the wavelength corresponding to the Beidou satellite communication receiving frequency band. That is, in some embodiments, the sum of the electrical lengths of the fourth radiator segment 911b and the third radiator segment 911a meets the requirement of resonance in the Beidou satellite positioning frequency band, and the fourth radiator segment 911b and the third radiator segment 911a jointly support the communication of the Beidou satellite positioning frequency band.

[0083] See also Figure 8 , Figure 8 A schematic diagram of a structure in which a third antenna radiator is shared in some other embodiments of the present application.

[0084] In some embodiments, Figure 8 As shown, the receiving radiator 911 also includes a fifth radiator segment 911c and a sixth radiator segment 911d; the third antenna radiator 92 also includes a second connection point M2, and the feeding point S1 is located between the grounding point G1 and the second connection point M2; the fifth radiator segment 911c is connected to the second connection point M2; wherein, the resonant frequency corresponding to the third radiator segment 911a and the fourth radiator segment 911b is different from the resonant frequency corresponding to the fifth radiator segment 911c and the sixth radiator segment 911d, and the sixth radiator segment 911d is the radiating segment between the grounding point G1 and the second connection point M2.

[0085] Since the second antenna supports the Beidou satellite communication receiving frequency band, the resonant frequency corresponding to the third radiator segment 911a and the fourth radiator segment 911b is different from the resonant frequency corresponding to the fifth radiator segment 911c and the sixth radiator segment 911d. Therefore, compared with the receiving radiator 911 only including the third radiator segment 911a and the fourth radiator segment 911b, the bandwidth can be widened.

[0086] The sum of the electrical lengths of the third radiator segment 911a and the fourth radiator segment 911b is different from the sum of the electrical lengths of the fifth radiator segment 911c and the sixth radiator segment 911d. In some embodiments, the electrical length of the sixth radiator segment 911d is greater than the electrical length of the fourth radiator segment 911b, the electrical length of the sixth radiator segment 911d is less than the electrical length of the third radiator segment 911a, and the sum of the electrical lengths of the third radiator segment 911a and the fourth radiator segment 911b is greater than or less than the sum of the electrical lengths of the fifth radiator segment 911c and the sixth radiator segment 911d.

[0087] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0088] The above is an implementation method of the embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the embodiment of the present application. These improvements and modifications are also considered to be within the scope of protection of the present application.

Claims

1. A wrist-worn device, characterized in that: The wrist-worn device comprises: case; A first pair of ear body parts, the first pair of ear body parts are arranged on the outer periphery of the housing, and are used to cooperate with the wristband for connection, and the first pair of ear body parts include a first ear body part and a second ear body part spaced apart from each other; A first connecting portion, connected between the first ear body portion and the second ear body portion; A first antenna radiator, wherein the first antenna radiator is at least partially disposed at the first connecting portion, and the first antenna radiator is used to support communication in a Sub 1G frequency band, wherein a frequency range of the Sub 1G frequency band is 100 MHz to 1 GHz.

2. The wrist-worn device according to claim 1, characterized in that: The Sub 1G frequency band is a 400MHz frequency band, and the first antenna radiator is used to support short-range communication in the 400MHz frequency band, where the short-range communication is communication with a communication distance less than or equal to 5 kilometers.

3. The wrist-worn device according to claim 1, characterized in that: The first antenna radiator at least includes a first radiating section and a second radiating section connected to the first radiating section, the first radiating section is arranged in the first connecting portion, and the second radiating section is arranged in the first ear body portion or the second ear body portion.

4. The wrist-worn device according to claim 3, characterized in that: The wristband device further includes a feed source, which is disposed in the housing and connected to the first radiation segment or the second radiation segment, wherein the feed source is used to provide a feed signal.

5. The wrist-worn device according to claim 3, characterized in that: The first radiation section is arranged inside the first connection part and is sealed and wrapped by the first connection part, and the second radiation section is arranged inside the first ear body part and / or the second ear body part and is sealed and wrapped by the first ear body part and / or the second ear body part.

6. The wrist-worn device according to claim 1, characterized in that: The first connection part is plate-shaped, the housing includes a bottom shell and a side frame, the bottom shell is connected to the side frame, the first pair of ear bodies are arranged on the periphery of the side frame, and the first connection part is inclined relative to the bottom shell.

7. The wrist-worn device according to claim 6, characterized in that: The first connecting portion is connected between the first ear body portion and the second ear body portion, and is connected to the outer periphery of the side frame.

8. The wrist-worn device according to claim 7, characterized in that: The first connection portion is connected to the outer periphery of the first end of the side frame away from the bottom shell, and the first connection portion extends from the first end of the side frame toward a direction away from the side frame and close to a plane where the bottom shell is located.

9. The wrist-worn device according to claim 6, wherein: The wrist-worn device further includes a spring ear and a wristband, wherein two ends of the spring ear are respectively connected to the first ear body and the second ear body, the spring ear is connected to the wristband, the first connecting portion includes a first connecting plate, the first connecting plate includes a first surface and a second surface opposite to each other, the first surface is farther away from the bottom shell than the second surface, and the first surface is farther away from the spring ear than the second surface.

10. The wrist-worn device according to claim 9, characterized in that: The first connecting portion further includes a second connecting plate, the spring ear is located between the first connecting plate and the second connecting plate, and at least a portion of the first antenna radiator is disposed on the first connecting plate and / or in the second connecting plate.

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