Antenna structure and wrist-worn device

Abstract

The invention provides an antenna structure and wrist-worn equipment, the antenna structure comprises a feed source, a first antenna and a second antenna, the first antenna comprises a first radiator, and a feeding point, a grounding point and a first connection point which are located on the first radiator, the feeding point is connected with the feed source, and the feeding point is located between the grounding point and the first connection point; the grounding point is used for grounding; wherein the first antenna supports a Beidou satellite positioning frequency band; the second antenna comprises a second radiating body and a first radiating section located between the grounding point of the first radiating body and the first connecting point, the second radiating body is connected with the first connecting point of the first radiating body, and the second antenna supports a Beidou satellite communication receiving frequency band. Therefore, the antenna structure realizes Beidou satellite communication and Beidou satellite positioning functions, the overall structure is smaller in size and lighter in weight, and when the antenna structure is arranged in the wrist-wearing equipment, the occupied space is reduced, and the weight of the wrist-wearing equipment is reduced.

Description

Technical Field

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

[0002] Since wrist-worn devices such as watches and bracelets need to be small in size and not too heavy, but need to realize many functions, how to prioritize the existing functional structure and ensure that the functions are realized while occupying less space needs to be further solved. Summary of the invention

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

[0004] A first aspect of the present application provides an antenna structure, which includes a feed source, a first antenna and a second antenna, wherein the first antenna includes a first radiator and a feeding point, a grounding point and a first connection point located on the first radiator, the feeding point is connected to the feed source, and the feeding point is located between the grounding point and the first connection point, and the grounding point is used for grounding; wherein the first antenna supports the Beidou satellite positioning frequency band; the second antenna includes a second radiator and a first radiating segment located between the grounding point and the first connection point of the first radiator, the second radiator is connected to the first connection point of the first radiator, and the second antenna supports the Beidou satellite communication receiving frequency band.

[0005] A second aspect of the present application provides a wrist-worn device, which includes the aforementioned antenna structure.

[0006] In the present application, since the first antenna supporting the Beidou satellite positioning frequency band and the second antenna supporting the Beidou satellite communication receiving frequency band share the first radiation segment of the first radiator, the antenna structure can realize the Beidou satellite communication and Beidou satellite positioning functions while the overall structure is smaller in size and lighter in weight. When the antenna structure is set in a wrist-worn device, it is beneficial to reduce the occupied space and reduce the weight of the wrist-worn device. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] 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.

[0008] Figure 1 A schematic diagram of the structure of a wrist-worn device at a first viewing angle provided by some embodiments of the present application; Figure 2A schematic diagram of the structure of a wrist-worn device at a second viewing angle provided by some embodiments of the present application; Figure 3 A schematic diagram of a first current distribution of an antenna structure provided in some embodiments of the present application; Figure 4 A schematic diagram of a second current distribution of an antenna structure provided in some embodiments of the present application; Figure 5 Schematic diagrams of antenna structures provided for other embodiments of the present application; Figure 6 A partial structural block diagram of a wrist-worn device provided in some embodiments of the present application; Figure 7 A schematic diagram of the structure of a wrist-worn device at a second viewing angle provided in some other embodiments of the present application. DETAILED DESCRIPTION

[0009] 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.

[0010] 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.

[0011] 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.

[0012] See also Figure 1 and Figure 2 , Figure 1 A schematic diagram of the structure of a wrist-worn device at a first viewing angle provided by some embodiments of the present application; Figure 2 This is a schematic diagram of the structure of a wrist-worn device at a second viewing angle provided in some embodiments of the present application.

[0013] like Figure 1 and Figure 2 As shown, in some embodiments, the wrist-worn device 100 includes an antenna structure 1. The wrist-worn device 100 may be, but is not limited to, a bracelet or a watch.

[0014] Please refer to Figure 1-Figure 4 , Figure 3 A schematic diagram of a first current distribution of an antenna structure provided in some embodiments of the present application; Figure 4 A schematic diagram of a second current distribution of an antenna structure provided in some embodiments of the present application.

[0015] In some embodiments, such as Figure 3 and Figure 4 As shown, the antenna structure 1 includes a feed source S1, a first antenna 10 and a second antenna 20; the first antenna 10 includes a first radiator 11 and a feeding point F1, a grounding point G1 and a first connection point M1 located on the first radiator 11, the feeding point F1 is connected to the feed source S1, and the feeding point F1 is located between the grounding point G1 and the first connection point M1, and the grounding point G1 is used for grounding; wherein, the first antenna 10 supports the Beidou satellite positioning frequency band; the second antenna 20 includes a second radiator 21 and a first radiation section 111 located between the grounding point G1 of the first radiator 11 and the first connection point M1, the second radiator 21 is connected to the first connection point M1 of the first radiator 11, and the second antenna 20 supports the Beidou satellite communication receiving frequency band.

[0016] In the present application, since the first antenna 10 supporting the Beidou satellite positioning frequency band and the second antenna 20 supporting the Beidou satellite communication receiving frequency band share the first radiation segment 111 of the first radiator 11, the antenna structure 1 can realize the Beidou satellite communication and Beidou satellite positioning functions while the overall structure has a smaller volume and lighter weight. When the antenna structure 1 is set in the wrist-worn device 100, it is beneficial to reduce the occupied space and reduce the weight of the wrist-worn device 100. Among them, Figure 3 As shown, when the first antenna 10 operates in the Beidou positioning frequency band, for example, when receiving a positioning signal sent by a Beidou satellite, the first radiator 11 distributes a current i1.

[0017] Among them, Figure 4 As shown, when the second antenna 20 operates in the Beidou receiving frequency band, for example, when receiving a communication signal sent by a Beidou satellite, a current i2 is distributed on the second radiator 21 and the first radiating segment 111 .

[0018] The Beidou satellite receiving frequency band includes the L band and the S band, the L band is 1616.0 MHz~1626.5 MHz, and the S band is 2483.5 MHz~2495.0 MHz.

[0019] 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.

[0020] The feed source S1 may be connected to the feed point F1 via a connecting piece such as a spring.

[0021] In some embodiments, the electrical length of the first radiator 11 is 1 / 4 of the wavelength corresponding to the Beidou satellite positioning frequency band. That is, in some embodiments, the electrical length of the first radiator 11 meets the requirement of resonance in the Beidou satellite positioning frequency band and supports communication in the Beidou satellite positioning frequency band.

[0022] Therefore, the size of the first radiator 11 is relatively small, which is beneficial to reducing the occupied space when the antenna structure 1 is disposed in the wrist-worn device 100 .

[0023] In this article, when the radiator / radiating section is not connected to a matching circuit, the electrical length of the radiator / radiating section refers to the electrical length of the radiator / radiating section itself; when the radiator / radiating section is connected to a matching circuit, the electrical length of the radiator / radiating section may refer to the electrical length of the radiator / radiating section itself plus the electrical length of the connected matching circuit.

[0024] In some embodiments, the sum of the electrical lengths of the second radiator 21 and the first radiation segment 111 of the first radiator 11 is 1 / 4 of the wavelength corresponding to the Beidou satellite communication receiving band. That is, in some embodiments, the sum of the electrical lengths of the second radiator 21 and the first radiation segment 111 meets the requirement of resonance in the Beidou satellite positioning band, and the second radiator 21 and the first radiation segment 111 jointly support the communication in the Beidou satellite positioning band.

[0025] Therefore, the sizes of the second radiator 21 and the first radiating section 111 are relatively small, which is beneficial to reducing the occupied space when the antenna structure 1 is disposed in the wrist-worn device 100 .

[0026] In some embodiments, the antenna structure 1 is a PIFA antenna.

[0027] See also Figure 5 , Figure 5 Schematic diagram of antenna structure provided for some other embodiments of the present application.

[0028] In some embodiments, such as Figure 5 As shown, the second antenna 20 also includes a third radiator 22; the first radiator 11 also includes a second connection point M2, and the feeding point F1 is located between the grounding point G1 and the second connection point M2; the third radiator 22 is connected to the second connection point M2; wherein, the resonant frequency corresponding to the first radiation segment 111 of the second radiator 21 and the first radiator 11 is different from the resonant frequency corresponding to the second radiation segment 112 of the third radiator 22 and the first radiator 11, and the second radiator 21 segment is the radiation segment between the grounding point G1 and the second connection point M2.

[0029] Since the second antenna supports the Beidou satellite communication receiving frequency band, the resonant frequency corresponding to the second radiator 21 and the first radiating segment 111 of the first radiator 11 is different from the resonant frequency corresponding to the third radiator 22 and the second radiating segment 112 of the first radiator 11. Therefore, compared with the second antenna 20 only including the second radiator 21 and the first radiating segment 111 of the first radiator 11, the bandwidth can be widened.

[0030] The sum of the electrical lengths of the second radiator 21 and the first radiating section 111 is different from the sum of the electrical lengths of the third radiator 22 and the second radiating section 112. In some embodiments, the electrical length of the second radiator 21 is greater than the electrical length of the third radiator 22, the electrical length of the first radiating section 111 is less than the electrical length of the second radiating section 112, and the sum of the electrical lengths of the second radiator 21 and the first radiating section 111 is greater than or less than the sum of the electrical lengths of the third radiator 22 and the second radiating section 112.

[0031] See also Figure 6 , Figure 6 A partial structural block diagram of a wrist-worn device provided in some embodiments of the present application.

[0032] Among them, Figure 6As shown, the wrist-worn device 100 may further include a circuit board 101, a radio frequency front end module (RFFEM) 102, a radio frequency integrated circuit (RFIC) 103, and a baseband processor 104, etc. The circuit board 101, the RF front end module 102, the RF integrated circuit 103, and the baseband processor 104 may all be arranged inside the wrist-worn device 100, and the RF front end module 102, the RF integrated circuit 103, and the baseband processor 104 may all be arranged on the circuit board 101, and the feed source S1 is also connected to the RF front end module 102.

[0033] Exemplarily, in a receiving scenario, the first antenna 10 and the second antenna 20 can receive electromagnetic waves, convert the electromagnetic waves into electrical signals and transmit them to the feed source S1, and through the RF front-end module 102 connected to the feed source S1, the RF front-end module 102 switches to the corresponding receiving link through a device with a switching function, and after amplifying, filtering, mixing, and other processing of the RF signal through the receiving link, the RF signal is sent to the RF integrated circuit 103, the RF integrated circuit 103 processes the RF signal into a baseband modulated signal, and transmits the baseband modulated signal to the baseband processor 104, the baseband processor 104 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.

[0034] In some embodiments, such as Figure 1 and Figure 2 As shown, the wrist-worn device 100 also includes a shell 30, a first pair of ear bodies 40 and a first connecting portion 50; the first pair of ear bodies 40 are arranged on the outer periphery of the shell 30, and are used to cooperate with the wristband 60 for connection, and the first pair of ear bodies 40 include a first ear body portion 41 and a second ear body portion 42 spaced apart from each other; the first connecting portion 50 is connected between the first ear body portion 41 and the second ear body portion 42; at least part of the first antenna 10 and the second antenna 20 are arranged on the first connecting portion 50.

[0035] Since the wrist-worn device 100 includes the first connecting portion 50 connected between the first ear body portion 41 and the second ear body portion 42, and the first pair of ear body portions 40 are arranged on the periphery of the shell 30, that is, the first connecting portion 50 is also located on the outside of the shell 30, therefore, at least partially setting the antenna structure 1 on the first connecting portion 50 can reduce the influence of electronic components such as the motherboard in the wrist-worn device 100 on the radiation efficiency of the antenna structure 1, and since the internal space of the wrist-worn device 100 is relatively small, at least partially setting the first antenna 10 and the second antenna 20 on the first connecting portion 50 is more conducive to reducing the occupation of the internal space of the wrist-worn device 100 by the antenna structure 1.

[0036] The first connecting portion 50 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.

[0037] Among them, the first ear body portion 41 and the second ear body portion 42 can be made of metal or insulating material. When the first ear body portion 41, the second ear body portion 42 and the first connecting portion 50 are made of the same material, the first ear body portion 41, the second ear body portion 42 and the first connecting portion 50 can be an integrally formed structure. When the first ear body portion 41, the second ear body portion 42 and the first connecting portion 50 are made of different materials, the first ear body portion 41, the second ear body portion 42 and the first connecting portion 50 can be connected by welding, hot pressing, clamping, etc.

[0038] In some embodiments, the first antenna 10 and the second antenna 20 may be entirely disposed in the first connecting portion 50 .

[0039] In some other embodiments, the first ear body portion 41 and / or the second ear body portion 42 are also made of insulating materials, for example, made of insulating materials such as plastic, glass or ceramic, and the first antenna 10 and the second antenna 20 can also be partially disposed in the first ear body portion 41 and / or the second ear body portion 42.

[0040] In some embodiments, such as Figure 1 and Figure 2As shown, the wrist-worn device 100 includes a second pair of ear bodies 70, and the second pair of ear bodies 70 includes a third ear body portion 71 and a fourth ear body portion 72, wherein the second pair of ear bodies 70 and the first pair of ear bodies 40 can be relatively arranged on both sides of the shell 30, that is, the second pair of ear bodies 70 and the first pair of ear bodies 40 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 40 and the second pair of ear bodies 70 are symmetrical about the axis of the length direction of the arm.

[0041] like Figure 1 and Figure 2 As shown, the wrist-worn device 100 further includes a second connecting portion 80 , and the second connecting portion 80 is connected to the third ear body portion 71 and the fourth ear body portion 72 .

[0042] In some embodiments, such as Figure 1 and Figure 2 As shown, the assembly of the first ear body portion 41 , the second ear body portion 42 and the first connecting portion 50 and the assembly of the third ear body portion 71 , the fourth ear body portion 72 and the second connecting portion 80 are axisymmetric structures.

[0043] In some embodiments, the second connection portion 80, the third ear body portion 71, and the fourth ear body portion 72 are located at the bottom side B of the wrist-worn device 100, and the first ear body portion 41, the second ear body portion 42, and the first connection portion 50 are located at the top side A 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.

[0044] In other embodiments, the second connecting portion 80, the third ear body portion 71 and the fourth ear body portion 72 may be located on the top side A of the wrist-worn device 100, and the first ear body portion 41, the second ear body portion 42 and the first connecting portion 50 may be located on the bottom side B of the wrist-worn device 100.

[0045] Among them, the third ear body portion 71 and the fourth ear body portion 72 can be made of metal or insulating material. When the third ear body portion 71 and the fourth ear body portion 72 are made of the same material as the second connecting portion 80, the third ear body portion 71, the fourth ear body portion 72 and the second connecting portion 80 can be an integrally formed structure. When the third ear body portion 71, the fourth ear body portion 72 and the second connecting portion 80 are made of different materials, the third ear body portion 71, the fourth ear body portion 72 and the second connecting portion 80 can be connected by welding, hot pressing, clamping, etc.

[0046] In some embodiments, the antenna structure 1 further includes a third antenna 90, the third antenna includes a fourth radiator 91, and the fourth radiator 91 is used to support communication in the Sub 1G frequency band, wherein the frequency range of the Sub 1G frequency band is 100 MHz~1 GHz.

[0047] In some embodiments, the Sub 1G frequency band may be a 400 MHz frequency band, and the fourth radiator 91 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.

[0048] 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 fourth radiator 91 in this application, thereby ensuring the reliability of the communication connection.

[0049] 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.

[0050] In other embodiments, the fourth radiator 91 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.

[0051] like Figure 1 and Figure 2 As shown, in some embodiments, the fourth radiator 91 is at least partially disposed in the second connecting portion 80 .

[0052] Since the wrist-worn device 100 includes the second connecting portion 80 connected between the third ear body portion 71 and the fourth ear body portion 72, and the second pair of ear body portions 70 are arranged on the periphery of the shell 30, that is, the second connecting portion 80 is also located on the outside of the shell 30. Therefore, at least a portion of the fourth radiator 91 supporting communication in the 100MHz~1GHz frequency band is arranged on the second connecting portion 80, which can reduce the influence of electronic components such as the motherboard in the wrist-worn device 100 on the radiation efficiency of the fourth radiator 91. Moreover, since the size required for the fourth radiator 91 supporting communication in the 100MHz~1GHz frequency band is often longer, the existence of the second connecting portion 80 can meet the setting requirements of a larger-sized fourth radiator 91, and the fourth radiator 91 can be more conveniently set on the outside of the shell 30.

[0053] In some embodiments, the fourth radiator 91 may be entirely disposed in the second connecting portion 80 .

[0054] like Figure 1 and Figure 2 As shown, in some other embodiments, the third ear body portion 71 and / or the fourth ear body portion 72 are also made of insulating materials, for example, made of insulating materials such as plastic, glass or ceramic, and the fourth radiator 91 can also be partially disposed in the third ear body portion 71 and / or the fourth ear body portion 72.

[0055] like Figure 1 and Figure 2 As shown, in some embodiments, the third ear body portion 71 and / or the fourth ear body portion 72 are also made of insulating materials, such as plastic, glass, or ceramic. Figure 1 and Figure 2 As shown, the fourth radiator 91 includes at least a third radiating segment 911 and a fourth radiating segment 912 connected to the third radiating segment 911, the third radiating segment 911 is arranged in the second connecting portion 80, and the third radiating segment 911 is arranged in the third ear body portion 71 and / or the fourth ear body portion 72.

[0056] Since the second connection part 80, the third ear body part 71, and the fourth ear body part 72 are all arranged outside the housing 30, the third radiation section 911 of the fourth radiator 91 is arranged in the second connection part 80, and the fourth radiation section 912 is arranged in the third ear body part 71 and / or the fourth ear body part 72, which can further reduce the influence of the electronic components such as the motherboard in the wrist-worn device 100 on the radiation efficiency of the fourth radiator 91. By arranging part of the fourth radiator 91 in the second connection part 80 and the other part in the third ear body part 71 and / or the fourth ear body part 72, the installation space required for the fourth radiator 91 can be better met.

[0057] Among them, there is an angle between the third radiation segment 911 and the fourth radiation segment 912, the third radiation segment 911 can be a strip, and in the second connecting portion 80 can be but not limited to a straight line, a broken line or a curve, etc., or the third radiation segment 911 can also be a square, similar to a patch antenna, etc., which is not limited here.

[0058] In some embodiments, the third radiation segment 911 is disposed inside the second connecting portion 80 and is sealed and wrapped by the second connecting portion 80, and the fourth radiation segment 912 is disposed inside the third ear body portion 71 and / or the fourth ear body portion 72 and is sealed and wrapped by the third ear body portion 71 and / or the fourth ear body portion 72.

[0059] Thus, the third radiation segment 911 and the fourth radiation segment 912 can be prevented from being exposed, thereby preventing the third radiation segment 911 and the fourth radiation segment 912 from coming into contact with liquid, etc., and at the same time, it is beneficial for the appearance of the second connecting portion 80, the third ear body portion 71 and the fourth ear body portion 72 of the wrist-worn device 100 to have a larger design space.

[0060] The fourth radiator 91 may be an LDS (Laser Direct Structuring) antenna. The third radiating section 911 may be formed inside the second connecting portion 80 by secondary injection molding, so that the third radiating section 911 is sealed and wrapped by the second connecting portion 80; the fourth radiating section 912 may be formed inside the third ear body portion 71 and / or the fourth ear body portion 72 by secondary injection molding, so that the fourth radiating section 912 is sealed and wrapped by the third ear body portion 71 and / or the fourth ear body portion 72.

[0061] In some embodiments, the antenna structure 1 further includes a fourth antenna 92 ​​, the fourth antenna includes a fifth radiator 920 , and the fifth radiator 920 supports the Beidou satellite transmission frequency band.

[0062] In some embodiments, the fifth radiator 920 is at least partially disposed on the first connecting portion 50 .

[0063] Since the first connecting portion 50 is located on the outside of the shell 30, at least a portion of the fifth radiator 920 that supports the Beidou satellite transmission frequency band is set on the first connecting portion 50, which can reduce the impact of electronic components such as the motherboard in the wrist-worn device 100 on the radiation efficiency of the fifth radiator 920.

[0064] The fifth radiator 920 may be entirely disposed in the first connecting portion 50 ; or a portion thereof may be disposed in the first connecting portion 50 , and another portion thereof may be disposed in the first ear body portion 41 and / or the second ear body portion 42 .

[0065] Since the first ear body portion 41 and the second ear body portion 42 are also located on the outside of the shell 30, a portion of the fifth radiator 920 that supports the Beidou satellite transmission frequency band is set in the first ear body portion 41 and / or the second ear body portion 42, which can also reduce the impact of electronic components such as the motherboard in the wrist-worn device 100 on the radiation efficiency of the fifth radiator 920.

[0066] In some embodiments, at least one of the first radiator 11 and the second radiator 21 is at least partially disposed inside the first connecting portion 50 and is sealed and wrapped by the first connecting portion 50 .

[0067] Therefore, at least a portion of the radiator disposed inside the first connection portion 50 and sealed and wrapped by the first connection portion 50 can be prevented from contacting with liquid or the like.

[0068] In some embodiments, the first radiator 11 and the second radiator 21 are both disposed inside the first connecting portion 50 and are sealed and wrapped by the first connecting portion 50 .

[0069] Thus, at least part of the radiator disposed inside the first connection part 50 and sealed by the first connection part 50 can be completely prevented from contacting with liquid, etc. At the same time, the appearance of the first connection part 50 of the wrist-worn device 100 has a larger design space.

[0070] The first radiator 11 and the second radiator 21 may be LDS (Laser Direct Structuring) antenna radiators, and the first radiator 11 and the second radiator 21 may be molded inside the first connecting portion 50 by secondary injection molding, so that the first radiator 11 and the second radiator 21 are sealed and wrapped by the first connecting portion 50 .

[0071] In some other embodiments, a part of the first radiator 11 and the second radiator 21 may be disposed inside the first connection portion 50, and another part thereof may be disposed inside the first ear body portion 41 and / or the second ear body portion 42, and may be sealed and wrapped by the first connection portion 50 and the first ear body portion 41 and / or the second ear body portion 42. The first connection portion 50, the first ear body portion 41 and the second ear body portion 42 may be an integrally formed structure, and the first radiator 11 and the second radiator 21 may be formed inside the first connection portion 50 and the first ear body portion 41 and / or the second ear body portion 42 by secondary injection molding.

[0072] In some embodiments, such as Figure 1 and Figure 2 As shown, the first connecting portion 50 is plate-shaped, the housing 30 includes a bottom shell 31 and a side frame 32, the bottom shell 31 is connected to the side frame 32, the first pair of ear bodies 40 are arranged on the outer periphery of the side frame 32, and the first connecting portion 50 is inclined relative to the bottom shell 31.

[0073] 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 31 is horizontal relative to the ground, the first connecting portion 50 is inclined relative to the bottom shell 31, and the first radiator 11 and the second radiator 21 are at least partially arranged on the first connecting portion 50. This allows the electromagnetic waves emitted by at least part of the first radiator 11 and the second radiator 21 to have a component in the vertical direction, thereby reducing the polarization current, avoiding significant energy attenuation, and ensuring effective signal propagation.

[0074] The side frame 32 is in a ring shape, specifically, it may be, but not limited to, a circular ring shape or a rectangular ring shape.

[0075] In some embodiments, such as Figure 1As shown, the shell 30 also includes an upper cover 33, and the upper cover 33 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 33 is connected to the side of the side frame 32 away from the bottom shell 31.

[0076] The bottom shell 31, the side frame 32 and the upper cover 33 are arranged to form a cavity (not shown). In the correct wearing method, the bottom shell 31 is closer to the arm than the upper cover 33.

[0077] Among them, the upper cover 33 can be but not limited to circular, elliptical, rectangular or irregular shapes, the side frame 32 can be but not limited to circular rings, rectangular rings, etc., and the bottom shell 31 can also be but not limited to circular, elliptical, rectangular or irregular shapes, etc.

[0078] In some embodiments, the first connecting portion 50 is connected between the first ear body portion 41 and the second ear body portion 42 , and is connected to the outer periphery of the side frame 32 .

[0079] Compared with the gap between the first connecting portion 50 and the outer periphery of the side frame 32, since the first connecting portion 50 is connected to the outer periphery of the side frame 32, the first radiator 11 and the second radiator 21 are at least partially arranged inside the first connecting portion 50. Therefore, the feed source S1 is connected to the first radiator 11 without the need to be connected to the first radiator 11 through a feeder via the first ear body portion 41 or the second ear body portion 42, thereby simplifying the connection path between the feed source S1 and the first radiator 11.

[0080] In other embodiments, the first connection portion 50 may also be spaced apart from the side frame 32 .

[0081] In some embodiments, the first connection portion 50 is connected to the outer periphery of the first end of the side frame 32 away from the bottom shell 31, and the first connection portion 50 extends from the first end of the side frame 32 in a direction away from the side frame 32 and close to the plane where the bottom shell 31 is located.

[0082] Since the bottom shell 31 is closer to the arm than the upper cover 33 in the correct wearing method, the first connecting portion 50 is connected to the periphery of the first end of the side frame 32 away from the bottom shell 31, and the first connecting portion 50 extends from the first end of the side frame 32 in a direction away from the side frame 32 and close to the plane where the bottom shell 31 is located, which is convenient for wearing and can ensure that the first connecting portion 50 is inclined relative to the bottom shell 31, so that the electromagnetic waves emitted by at least part of the first radiator 11 and the second radiator 21 have a component in the vertical direction, thereby reducing the polarization current, avoiding a significant attenuation of energy, and ensuring effective propagation of signals.

[0083] In some embodiments, such as Figure 1 and Figure 2 As shown, the first connection portion 50 includes a first surface 501 and a second surface 502 opposite to each other. The first surface 501 is farther away from the bottom shell 31 than the second surface 502. A side edge of the first surface 501 close to the side frame 32 is connected to a side of the side frame 32 away from the bottom shell 31.

[0084] The first surface 501 and the second surface 502 may be curved surfaces. In other embodiments, at least one of the first surface 501 and the second surface 502 may also be a flat surface.

[0085] In some embodiments, a side edge of the second surface 502 away from the side frame 32 and a bottom surface of the bottom shell 31 away from the side frame 32 are located in the same plane.

[0086] Therefore, the first connection portion 50 can have a larger area to facilitate the placement of at least a portion of the first radiator 11 and the second radiator 21 while being comfortable to wear.

[0087] In some embodiments, such as Figure 2 As shown, the wrist-worn device 100 further includes a spring ear 61 and a wristband 60, wherein two ends of the spring ear 61 are respectively connected to the first ear body 41 and the second ear body 42, and the spring ear 61 is connected to the wristband 60. Figure 1 and Figure 2 As shown, the first connection portion 50 includes a first connection plate 51 , and the first connection plate 51 includes a first surface 501 and a second surface 502 opposite to each other. The first surface 501 is farther from the bottom shell 31 than the second surface 502 , and the first surface 501 is farther from the ear 61 than the second surface 502 .

[0088] in, Figure 2The structure between the first ear body portion 41 and the second ear body portion 42 is the same as the structure between the third ear body portion 71 and the fourth ear body portion 72, and can be understood by comparison. However, it should be understood that in other embodiments, the structure between the first ear body portion 41 and the second ear body portion 42 may be different from the structure between the third ear body portion 71 and the fourth ear body portion 72.

[0089] Since the bottom shell 31 is closer to the arm than the upper cover 33 in the correct wearing method, the ear 61 and part of the wristband 60 are located between the first connecting plate 51 and the arm in the correct wearing method, so that the ear 61 cannot be seen after wearing, making the appearance of the wrist-worn device 100 more concise after wearing.

[0090] In some embodiments, the wristband 60 has an axial hole (not marked) in the width direction, the ear 61 is inserted into the axial hole, and both ends extend out of the axial hole and are respectively connected to the first ear body 41 and the second ear body 42, wherein the width direction can be the connecting direction of the first ear body 41 and the second ear body 42.

[0091] In other embodiments, after being worn, the ear 61 may also be exposed, that is, the first connecting plate 51 and the ear 61 are arranged side by side between the first ear body portion 41 and the second ear body portion 42 along the extending direction of the wristband 60 .

[0092] See also Figure 2 and Figure 7 , Figure 7 A schematic diagram of the structure of a wrist-worn device at a second viewing angle provided in some other embodiments of the present application.

[0093] Similar to the above embodiments, but different, in some embodiments, such as Figure 7 As shown, the first connection portion 50 also includes a second connection plate 52 , the spring ear 61 is located between the first connection plate 51 and the second connection plate 52 , and at least part of the first radiator 11 and the second radiator 21 is disposed on the first connection plate 51 and / or in the second connection plate 52 .

[0094] Therefore, at least part of the first radiator 11 and the second radiator 21 may be disposed on the first connecting plate 51 and / or the second connecting plate 52 , and the first connecting portion 50 has a larger area for disposing the first radiator 11 and the second radiator 21 .

[0095] The first connecting plate 51 and the second connecting plate 52 may be spaced apart from each other.

[0096] In other embodiments, when the first connecting portion 50 only includes the first connecting plate 51 , that is, does not include the second connecting plate 52 , it is helpful to reduce the weight of the wrist-worn device 100 .

[0097] in, Figure 7 In the embodiment, the assembly of the first ear body portion 41, the second ear body portion 42 and the first connecting portion 50 and the assembly of the third ear body portion 71, the fourth ear body portion 72 and the second connecting portion 80 are axisymmetric structures.

[0098] 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.

[0099] 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. An antenna structure, characterized in that: The antenna structure comprises: Feeds; A first antenna, comprising a first radiator and a feeding point, a grounding point and a first connection point located on the first radiator, wherein the feeding point is connected to the feed source and is located between the grounding point and the first connection point, and the grounding point is used for grounding; wherein the first antenna supports the Beidou satellite positioning frequency band; The second antenna includes a second radiator and a first radiating segment located between the grounding point and the first connection point of the first radiator, the second radiator is connected to the first connection point of the first radiator, and the second antenna supports the Beidou satellite communication receiving frequency band.

2. The antenna structure according to claim 1, characterized in that: The electrical length of the first radiator is 1 / 4 of the wavelength corresponding to the Beidou satellite positioning frequency band.

3. The antenna structure according to claim 1, characterized in that: The sum of the electrical lengths of the second radiator and the first radiation segment of the first radiator is 1 / 4 of the wavelength corresponding to the Beidou satellite communication receiving frequency band.

4. The antenna structure according to claim 1, characterized in that: The second antenna also includes a third radiator; The first radiator further includes a second connection point, and the feeding point is located between the ground point and the second connection point; The third radiator is connected to the second connection point; Among them, the resonant frequency corresponding to the second radiator and the first radiating segment of the first radiator is different from the resonant frequency corresponding to the third radiator and the second radiating segment of the first radiator, and the second radiating segment is the radiating segment between the grounding point and the second connection point.

5. A wrist-worn device, characterized in that: The wrist-worn device comprises the antenna structure described in any one of claims 1 to 4.

6. The wrist-worn device according to claim 5, characterized in that: The wrist-worn device further 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; At least parts of the first antenna and the second antenna are disposed on the first connecting portion.

7. The wrist-worn device according to claim 6, characterized in that: At least one of the first radiator and the second radiator is at least partially disposed inside the first connecting portion and is sealed and wrapped by the first connecting portion.

8. The wrist-worn device according to claim 6, wherein: 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.

9. The wrist-worn device according to claim 8, 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.

10. The wrist-worn device according to claim 9, 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.

11. The wrist-worn device according to claim 8, characterized in that: 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 connection portion includes a first-first connection portion, the first-first connection portion includes a first surface and a second surface opposite to each other, the first surface is farther from the bottom shell than the second surface, and the first surface is farther from the spring ear than the second surface.

12. The wrist-worn device according to claim 11, 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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