Antenna system and electronic assembly

Abstract

The application provides an antenna system and an electronic assembly. The first radiation part of the antenna system is coupled with a transmitting antenna radiator, and the second radiation part is coupled with a first receiving antenna radiator. The coupling coefficient between the first radiation part and the transmitting antenna radiator is greater than or equal to a preset coupling coefficient; and / or, the quality factor of the first radiation part is greater than or equal to a first preset quality factor; and / or, the quality factor of the transmitting antenna radiator is greater than or equal to a second preset quality factor; and / or, the mutual inductance coefficient between the second radiation part and the first receiving antenna radiator is greater than or equal to a preset mutual inductance coefficient; and / or, the quality factor of the second radiation part is greater than or equal to a third preset quality factor; and / or, the quality factor of the first receiving antenna radiator is greater than or equal to a fourth preset quality factor. The antenna assembly and the electronic assembly provided by the application can improve the transmission efficiency of the antenna signal.

Description

Technical Field

[0001] This application relates to the field of wireless communication technology, specifically to an antenna system and electronic components. Background Technology

[0002] In related technologies, a relay antenna radiator is designed to forward the antenna signal emitted by the transmitting antenna radiator to the receiving antenna radiator. This reduces the restrictions on the position and layout of the transmitting and receiving antenna radiators while achieving antenna signal transmission. However, this technical solution has low antenna signal transmission efficiency, making it difficult to meet user needs in practical applications. Summary of the Invention

[0003] This application provides an antenna system and electronic components that can improve the efficiency of antenna signal transmission.

[0004] In a first aspect, this application provides an antenna system, comprising:

[0005] First receiving antenna radiator;

[0006] Second receiving antenna radiator;

[0007] The transmitting antenna radiator is used to transmit signals from the first antenna and the second antenna; and

[0008] A relay antenna radiator includes a first radiating part and a second radiating part electrically connected. The first radiating part is coupled to a transmitting antenna radiator, and the second radiating part is mutually inducted with the first receiving antenna radiator. The relay antenna radiator is used to receive the first antenna signal and forward the first antenna signal to the first receiving antenna radiator, and also to receive the second antenna signal and forward the second antenna signal to the second receiving antenna radiator. The coupling coefficient between the first radiating part and the transmitting antenna radiator is greater than or equal to a preset coupling coefficient; and / or, the quality factor of the first radiating part is greater than or equal to a first preset quality factor; and / or, the quality factor of the transmitting antenna radiator is greater than or equal to a second preset quality factor; and / or, the mutual inductance coefficient between the second radiating part and the first receiving antenna radiator is greater than or equal to a preset mutual inductance coefficient; and / or, the quality factor of the second radiating part is greater than or equal to a third preset quality factor; and / or, the quality factor of the first receiving antenna radiator is greater than or equal to a fourth preset quality factor.

[0009] Secondly, this application also provides an electronic component, including an electronic device, an accessory, and the antenna system described above, wherein the transmitting antenna radiator is disposed on the electronic device, the first receiving antenna radiator is disposed on the accessory, and the relay antenna radiator is disposed on the electronic device or the accessory.

[0010] Thirdly, this application also provides an electronic component, including an electronic device, a first device accessory, a second device accessory, and the antenna system, wherein the transmitting antenna radiator is disposed on the electronic device, the first receiving antenna radiator is disposed on the first device accessory, and the relay antenna radiator is disposed on the second device accessory.

[0011] The antenna system provided in this application includes a first receiving antenna radiator, a second receiving antenna radiator, a transmitting antenna radiator, and a relay antenna radiator. The relay antenna radiator includes a first radiating part and a second radiating part electrically connected. The first radiating part is coupled to the transmitting antenna radiator, and the second radiating part is mutually inducted with the first receiving antenna radiator. The transmitting antenna radiator is used to transmit a first antenna signal and a second antenna signal. The relay antenna radiator is used to receive the first antenna signal and forward the first antenna signal to the first receiving antenna radiator. By making the coupling coefficient between the first radiating part and the transmitting antenna radiator greater than or equal to a preset coupling coefficient, and / or, the quality factor of the first radiating part greater than or equal to a first preset quality factor, and / or, the quality factor of the transmitting antenna radiator greater than or equal to a second preset quality factor, the coupling effect between the first radiating part and the transmitting antenna radiator is improved, thereby improving the transmission efficiency of the first antenna signal and the second antenna signal between the first radiating part and the transmitting antenna radiator. In addition, the mutual inductance between the second radiating part and the first receiving antenna radiator can be improved by making the mutual inductance coefficient between the second radiating part and the first receiving antenna radiator greater than or equal to a preset mutual inductance coefficient, and / or making the quality factor of the second radiating part greater than or equal to a third preset quality factor, and / or making the quality factor of the first receiving antenna radiator greater than or equal to a fourth preset quality factor, thereby improving the mutual inductance effect between the second radiating part and the first receiving antenna radiator, and thus improving the signal transmission efficiency of the first antenna between the second radiating part and the first receiving antenna radiator. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly described below.

[0013] Figure 1 A schematic diagram of an antenna system provided in an embodiment of this application;

[0014] Figure 2 for Figure 1 The diagram shows a planar structure of the relay antenna radiator of the antenna system, including a first radiating part and a second radiating part that are electrically connected.

[0015] Figure 3 for Figure 1 A schematic diagram of the planar structure of the relay antenna radiator coupled to the transmitting antenna radiator in the antenna system shown.

[0016] Figure 4 for Figure 1 The antenna system shown also includes a schematic diagram of the architecture of a second receiving antenna radiator.

[0017] Figure 5 for Figure 4 A schematic diagram of the planar structure of the mutual inductance between the first radiating part of the relay antenna radiator and the second receiving antenna radiator of the antenna system shown.

[0018] Figure 6 for Figure 4 A schematic diagram of the planar structure of the second radiating part of the relay antenna radiator and the first receiving antenna radiator of the antenna system shown, which are arranged around the same magnetic core.

[0019] Figure 7 for Figure 4 The antenna system shown has a planar ring-shaped transmitting antenna radiator and a planar ring-shaped first radiating part of the relay antenna radiator. The radius of the first radiating part is less than or equal to the radius of the transmitting antenna radiator.

[0020] Figure 8 for Figure 4 The diagram shows the planar structural dimensions of the antenna system, where the edges of the transmitting antenna radiator are arranged in a polygonal shape, the edges of the first radiating part of the relay antenna radiator are arranged in a polygonal shape, and the area of ​​the region enclosed by the edges of the first radiating part is less than or equal to the area of ​​the region enclosed by the edges of the transmitting antenna radiator.

[0021] Figure 9 for Figure 6 The diagram shows a planar structure of a magnetic core including a connected first magnetic core section and a second magnetic core section.

[0022] Figure 10 This is a schematic diagram of a planar structure of an electronic component provided in an embodiment of this application;

[0023] Figure 11 This is a schematic diagram of the structure of an electronic component provided in an embodiment of this application;

[0024] Figure 12 This is a schematic diagram of another electronic component provided in an embodiment of this application. Detailed Implementation

[0025] The technical solutions provided in this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the embodiments described in this application are only a part of the embodiments, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments described in this application without creative effort are within the protection scope of this application.

[0026] In this application, the terms "embodiment" or "implementation" mean that a specific feature, structure, or characteristic described in connection with an embodiment or implementation can be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment to other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described in this application can be combined with other embodiments.

[0027] The terms “first,” “second,” etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, rather than to describe a particular order; the terms “comprising” and “having,” and any variations thereof, are intended to cover non-exclusive inclusion.

[0028] like Figure 1 As shown, Figure 1 This is a schematic diagram of an antenna system 100 provided in an embodiment of this application. The antenna system 100 includes a first receiving antenna radiator 10, a transmitting antenna radiator 20, and a relay antenna radiator 30.

[0029] The first receiving antenna radiator 10 can be a wire-wound antenna capable of receiving signals from the first antenna, i.e., the first receiving antenna radiator 10 can be a coil antenna radiator. The first receiving antenna radiator 10 is ring-shaped. Specifically, the first receiving antenna radiator 10 can be a three-dimensional ring or a planar ring. When the first receiving antenna radiator 10 is a three-dimensional ring, it can be arranged in a hollow cylinder, hollow cube, hollow cuboid, or hollow prism, etc. When the first receiving antenna radiator 10 is a planar ring, its edges can be arranged in a circle, ellipse, rectangle, square, other polygons, or various irregular shapes, etc. The material of the first receiving antenna radiator 10 can include metal, alloy, composite metal, composite polymer conductive material, etc. For example, the material of the first receiving antenna radiator 10 can be one of copper, silver, copper alloy, aluminum alloy, carbon fiber, graphene, conductive plastic, etc.

[0030] The transmitting antenna radiator 20 is used to transmit a first antenna signal. For example, the transmitting antenna radiator 20 can be a wire-wound antenna capable of transmitting the first antenna signal, that is, the transmitting antenna radiator 20 can be a coil antenna radiator. The first antenna signal can be a charging signal. The transmitting antenna radiator 20 is ring-shaped. Specifically, the transmitting antenna radiator 20 can be a three-dimensional ring or a planar ring. When the transmitting antenna radiator 20 is a three-dimensional ring, it can be formed into a hollow cylinder, hollow cube, hollow cuboid, or hollow prism, etc. When the transmitting antenna radiator 20 is a planar ring, its edges can be formed into a circle, ellipse, rectangle, square, other polygons, or various irregular shapes, etc. The material of the transmitting antenna radiator 20 can include metals, alloys, composite metals, composite conductive polymer materials, etc. For example, the material of the transmitting antenna radiator 20 can be one of copper, silver, copper alloys, aluminum alloys, carbon fiber, graphene, conductive plastics, etc.

[0031] The relay antenna radiator 30 is used to receive the first antenna signal and forward it to the first receiving antenna radiator 10. For example, the relay antenna radiator 30 is a wire-wound antenna capable of forwarding the first antenna signal transmitted by the transmitting antenna radiator 20 to the first receiving antenna radiator 10; that is, the relay antenna radiator 30 can be a coil antenna radiator. Specifically, such as... Figure 2 As shown, the relay antenna radiator 30 includes a first radiating part 301 and a second radiating part 302 electrically connected. In this application, the first radiating part 301 and the second radiating part 302 can be directly electrically connected or indirectly electrically connected. In the following embodiments, unless otherwise specified, a direct electrical connection between the first radiating part 301 and the second radiating part 302 is used as an example. The material of the first radiating part 301 can be metal, alloy, composite metal, composite polymer conductive material, etc. The material of the second radiating part 302 can be metal, alloy, composite metal, composite polymer conductive material, etc. For example, the material of the first radiating part 301 can be one of copper, silver, copper alloy, aluminum alloy, carbon fiber, graphene, conductive plastic, etc. The material of the first radiating part 301 and the second radiating part 302 can be the same or different.

[0032] The first radiating part 301 is annular. Specifically, the first radiating part 301 can be a three-dimensional annular shape or a planar annular shape. When the first radiating part 301 is a three-dimensional annular shape, it can be arranged in the shape of a hollow cylinder, a hollow cube, a hollow cuboid, or a hollow prism, etc. When the first radiating part 301 is a planar annular shape, its edges can be arranged in the shape of a circle, ellipse, rectangle, square, other polygons, or various irregular shapes, etc.

[0033] The second radiating part 302 is annular. Specifically, the second radiating part 302 can be a three-dimensional annular shape or a planar annular shape. When the second radiating part 302 is a three-dimensional annular shape, it can be arranged in the shape of a hollow cylinder, a hollow cube, a hollow cuboid, or a hollow prism, etc. When the second radiating part 302 is a planar annular shape, its edges can be arranged in the shape of a circle, ellipse, rectangle, square, other polygons, or various irregular shapes, etc.

[0034] like Figure 3 As shown, the first radiating part 301 is coupled to the transmitting antenna radiator 20. It is understood that the first radiating part 301 is capable of receiving the first antenna signal transmitted by the transmitting antenna radiator 20. In one possible embodiment, the first radiating part 301 is planar and annular, and the transmitting antenna radiator 20 is planar and annular; the first radiating part 301 and the transmitting antenna radiator 20 are opposite each other and spaced apart by a predetermined distance to form coupling; or, the first radiating part 301 and the transmitting antenna radiator 20 are spaced apart by a predetermined distance, and the orthographic projection of the first radiating part 301 on the plane of the transmitting antenna radiator 20 at least partially coincides with the transmitting antenna radiator 20 to form coupling. The predetermined distance between the first radiating part 301 and the transmitting antenna radiator 20 can be 1mm to 10mm.

[0035] The second radiating part 302 is mutually inducted with the first receiving antenna radiator 10. Specifically, the second radiating part 302 and the first receiving antenna radiator 10 are close to each other to form mutual inductance, or the second radiating part 302 and the first receiving antenna radiator 10 are arranged around the same magnetic core 50 to form mutual inductance. In this embodiment, the second radiating part 302 can receive the first antenna signal transmitted by the transmitting antenna radiator 20 through the first radiating part 301, and forward the first antenna signal to the first receiving antenna radiator 10.

[0036] Wherein, the coupling coefficient between the first radiating part 301 and the transmitting antenna radiator 20 is greater than or equal to a preset coupling coefficient; and / or, the quality factor of the first radiating part 301 is greater than or equal to a first preset quality factor; and / or, the quality factor of the transmitting antenna radiator 20 is greater than or equal to a second preset quality factor; and / or, the mutual inductance coefficient between the second radiating part 302 and the first receiving antenna radiator 10 is greater than or equal to a preset mutual inductance coefficient; and / or, the quality factor of the second radiating part 302 is greater than or equal to a third preset quality factor; and / or, the quality factor of the first receiving antenna radiator 10 is greater than or equal to a fourth preset quality factor.

[0037] In one possible embodiment, the coupling coefficient between the first radiating part 301 and the transmitting antenna radiator 20 is greater than or equal to a preset coupling coefficient, and / or, the quality factor of the first radiating part 301 is greater than or equal to a first preset quality factor, and / or, the quality factor of the transmitting antenna radiator 20 is greater than or equal to a second preset quality factor. This embodiment can improve the coupling effect between the first radiating part 301 and the transmitting antenna radiator 20, enhance the coupling current intensity of the first radiating part 301 and the current intensity of the second radiating part 302, thereby indirectly enhancing the mutual inductance effect between one of the first radiating part 301 and the second radiating part 302 and the first receiving antenna radiator 10, thereby directly improving the efficiency of transmitting the first antenna signal between the transmitting antenna radiator 20 and the relay antenna radiator 30, and indirectly improving the efficiency of transmitting the first antenna signal between the relay antenna radiator 30 and the first receiving antenna radiator 10.

[0038] In another possible embodiment, the mutual inductance coefficient between the second radiating part 302 and the first receiving antenna radiator 10 is greater than or equal to a preset mutual inductance coefficient; and / or, the quality factor of the second radiating part 302 is greater than or equal to a third preset quality factor; and / or, the quality factor of the first receiving antenna radiator 10 is greater than or equal to a fourth preset quality factor. This embodiment can directly enhance the mutual inductance effect between the second radiating part 302 and the first receiving antenna radiator 10, thereby improving the efficiency of the second radiating part 302 in forwarding the first antenna signal to the first receiving antenna radiator 10.

[0039] The antenna system 100 provided in this application includes a first receiving antenna radiator 10, a transmitting antenna radiator 20, and a relay antenna radiator 30. The relay antenna radiator 30 includes a first radiating part 301 and a second radiating part 302 electrically connected. The first radiating part 301 is coupled to the transmitting antenna radiator 20, and the second radiating part 302 is mutually inducted with the first receiving antenna radiator 10. The transmitting antenna radiator 20 is used to transmit first antenna signals and second antenna signals. The relay antenna radiator 30 is used to receive the first antenna signals and forward them to the first receiving antenna radiator 10. It is also used to receive the second antenna signal and forward the second antenna signal to the second receiving antenna radiator. By making the coupling coefficient between the first radiating part 301 and the transmitting antenna radiator 20 greater than or equal to a preset coupling coefficient, and / or, the quality factor of the first radiating part 301 greater than or equal to a first preset quality factor, and / or, the quality factor of the transmitting antenna radiator 20 greater than or equal to a second preset quality factor, the coupling effect between the first radiating part 301 and the transmitting antenna radiator 20 is improved, thereby improving the first antenna signal transmission efficiency between the first radiating part 301 and the transmitting antenna radiator 20. In addition, the mutual inductance coefficient between the second radiating part 302 and the first receiving antenna radiator 10 can be increased by making the mutual inductance coefficient between the second radiating part 302 and the first receiving antenna radiator 10 greater than or equal to a preset mutual inductance coefficient, and / or making the quality factor of the second radiating part 302 greater than or equal to a third preset quality factor, and / or making the quality factor of the first receiving antenna radiator 10 greater than or equal to a fourth preset quality factor, thereby improving the mutual inductance effect between the second radiating part 302 and the first receiving antenna radiator 10, and thus improving the first antenna signal transmission efficiency between the second radiating part 302 and the first receiving antenna radiator 10.

[0040] Furthermore, such as Figure 4 As shown, the antenna system 100 also includes a second receiving antenna radiator 40. The second receiving antenna radiator 40 is a wire-wound antenna capable of receiving second antenna signals. The second receiving antenna radiator 40 is ring-shaped. Specifically, the second receiving antenna radiator 40 can be a three-dimensional ring or a planar ring. When the second receiving antenna radiator 40 is a three-dimensional ring, it can be arranged in a hollow cylinder, hollow cube, hollow cuboid, or hollow prism, etc. When the second receiving antenna radiator 40 is a planar ring, it can be a circular ring, elliptical ring, rectangular ring, square ring, other polygonal rings, or various irregularly shaped rings, etc. The material of the second receiving antenna radiator 40 can include metals, alloys, composite metals, composite conductive polymer materials, etc. For example, the material of the second receiving antenna radiator 40 can be one of copper, silver, copper alloys, aluminum alloys, carbon fiber, graphene, conductive plastics, etc.

[0041] The transmitting antenna radiator 20 is also used to transmit a second antenna signal. It is understood that the transmitting antenna radiator 20 is a wire-wound antenna capable of transmitting both the first antenna signal and the second antenna signal. The second antenna signal is different from the first antenna signal. In one possible implementation, the first antenna signal can be a charging signal, and the second antenna signal can be an NFC signal. The transmitting antenna radiator 20 can transmit the first antenna signal and the second antenna signal in a time-division multiplexing manner.

[0042] like Figure 5 As shown, the first radiating part 301 is coupled to the second receiving antenna radiator 40. The first radiating part 301 is used to receive the second antenna signal and forward the second antenna signal to the second receiving antenna radiator 40. It can be understood that the relay antenna radiator 30 is also used to receive the second antenna signal transmitted by the transmitting antenna radiator 20 and forward the second antenna signal to the second receiving antenna radiator 40. In other words, the relay antenna radiator 30 in this embodiment is a wire-wound antenna capable of forwarding both the first antenna signal transmitted by the transmitting antenna radiator 20 to the first receiving antenna radiator 10 and the second antenna signal transmitted by the transmitting antenna radiator 20 to the second receiving antenna radiator 40.

[0043] In this embodiment, the first radiating part 301 of the relay antenna radiator 30 is coupled to the transmitting antenna radiator 20, and the first radiating part 301 can also be coupled to the second receiving antenna radiator 40, serving as the main antenna part of the relay antenna radiator 30 relaying the second antenna signal to the second receiving antenna radiator 40. Alternatively, in other embodiments, the second radiating part 302 can also be coupled to the second receiving antenna radiator 40, serving as an auxiliary antenna part of the relay antenna radiator 30 relaying the second antenna signal to the second receiving antenna radiator 40.

[0044] This embodiment improves the transmission efficiency of both the first antenna signal and the second antenna signal by ensuring that the coupling coefficient between the first radiating part 301 and the transmitting antenna radiator 20 is greater than or equal to a preset coupling coefficient; and / or that the quality factor of the first radiating part 301 is greater than or equal to a first preset quality factor; and / or that the quality factor of the transmitting antenna radiator 20 is greater than or equal to a second preset quality factor.

[0045] Optionally, the first antenna signal is a charging signal, and the second antenna signal is an NFC signal. In this embodiment, by ensuring that the coupling coefficient between the first radiating part 301 and the transmitting antenna radiator 20 is greater than or equal to a preset coupling coefficient; and / or, the quality factor of the first radiating part 301 is greater than or equal to a first preset quality factor; and / or, the quality factor of the transmitting antenna radiator 20 is greater than or equal to a second preset quality factor, NFC communication performance and charging efficiency can be improved. By ensuring that the mutual inductance coefficient between the second radiating part 302 and the first receiving antenna radiator 10 is greater than or equal to a preset mutual inductance coefficient; and / or, the quality factor of the second radiating part 302 is greater than or equal to a third preset quality factor; and / or, the quality factor of the first receiving antenna radiator 10 is greater than or equal to a fourth preset quality factor, charging efficiency can be improved.

[0046] In one possible embodiment, such as Figure 6 As shown, the second radiating part 302 and the first receiving antenna radiator 10 are arranged around the same magnetic core 50. The second radiating part 302 is used to receive the first antenna signal through the first radiating part 301 and forward the first antenna signal to the first receiving antenna radiator 10. In this embodiment, the second radiating part 302 of the relay antenna radiator 30 and the first receiving antenna radiator 10 are mutually inductive. It can be understood that when the transmitting antenna radiator 20 transmits the first antenna signal, the first radiating part 301 can receive the first antenna signal transmitted by the transmitting antenna radiator 20 and transmit it to the second radiating part 302. The second radiating part 302 can receive the first antenna signal transmitted by the first radiating part 301 and forward it to the first receiving antenna radiator 10. The principle by which the second radiating part 302 forwards the first antenna signal to the first receiving antenna radiator 10 is based on the principle of electromagnetic induction.

[0047] In the following embodiments, the transmitting antenna radiator 20, the first radiating part 301, and the second receiving antenna radiator 40 are arranged in a planar ring shape. The first radiating part 301 can be coupled with the transmitting antenna radiator 20 and can be mutually inducted with the second receiving antenna radiator 40. The second radiating part 302 and the first receiving antenna radiator 10 are arranged in a three-dimensional ring shape and are arranged around the same magnetic core 50 to form mutual inductance. The first antenna signal is a charging signal and the second antenna signal is an NFC signal. The structural design of the antenna system 100 provided in this application will be described using this example.

[0048] Optionally, the coupling coefficient between the first radiating part 301 and the transmitting antenna radiator 20 is greater than or equal to a preset coupling coefficient.

[0049] In one possible embodiment, such as Figure 7As shown, the transmitting antenna radiator 20 is a planar ring. The first radiating part 301 is also a planar ring. The edge of the first radiating part 301 is circular or elliptical, and the edge of the transmitting antenna radiator 20 is also circular or elliptical. The radius of the first radiating part 301 is less than or equal to the radius of the transmitting antenna radiator 20. Optionally, the edge of the first radiating part 301 is circular, the edge of the transmitting antenna radiator 20 is circular, and the radius of the first radiating part 301 is less than or equal to the radius of the transmitting antenna radiator 20; or, the edge of the first radiating part 301 is elliptical, the edge of the transmitting antenna radiator 20 is circular, and the radius of the first radiating part 301 is less than or equal to the radius of the transmitting antenna radiator 20; or, the edge of the first radiating part 301 is circular, the edge of the transmitting antenna radiator 20 is elliptical, and the radius of the first radiating part 301 is less than or equal to the radius of the transmitting antenna radiator 20; or, the edge of the first radiating part 301 is elliptical, the edge of the transmitting antenna radiator 20 is elliptical, and the radius of the first radiating part 301 is less than or equal to the radius of the transmitting antenna radiator 20.

[0050] Since the first radiating part 301 is coupled to the transmitting antenna radiator 20, by making the radius of the first radiating part 301 smaller than or equal to the radius of the transmitting antenna radiator 20, the phenomenon of magnetic leakage caused by the opposite magnetic field lines canceling each other when the magnetic field generated by the transmitting antenna radiator 20 passes through the first radiating part 301 can be reduced. This improves the coupling effect between the first radiating part 301 and the transmitting antenna radiator 20, enabling the first radiating part 301 to receive more first antenna signals and / or second antenna signals transmitted by the transmitting antenna radiator 20.

[0051] When the edge of the first radiating part 301 is circular or elliptical, and the edge of the transmitting antenna radiator 20 is circular or elliptical, the coupling coefficient M1 between the first radiating part 301 and the transmitting antenna radiator 20 can be expressed as: Wherein, Φ1 is the magnetic flux of the first radiating part 301; I1 is the induced current of the first radiating part 301; B1 is the magnetic flux density of the transmitting antenna radiator 20; S1 is the area of ​​the first radiating part 301; μ1 is the relative permeability of the transmitting antenna radiator 20; R1 is the radius of the transmitting antenna radiator 20; and R2 is the radius of the first radiating part 301. Based on the formula for the coupling coefficient M1 between the first radiating part 301 and the transmitting antenna radiator 20, it can be seen that by designing the relative permeability μ1 of the transmitting antenna radiator 20, the radius R2 of the first radiating part 301, and the radius R1 of the transmitting antenna radiator 20, the coupling coefficient M1 between the first radiating part 301 and the transmitting antenna radiator 20 can be changed. This is beneficial for achieving a coupling coefficient between the first radiating part 301 and the transmitting antenna radiator 20 that is greater than or equal to a preset coupling coefficient, thereby improving the coupling effect between the first radiating part 301 and the transmitting antenna radiator 20, enabling the first radiating part 301 to receive more first antenna signals and / or second antenna signals.

[0052] In one possible implementation, the radius of the first radiating part 301 is greater than or equal to a first preset radius. From the formula for the coupling coefficient M1 between the first radiating part 301 and the transmitting antenna radiator 20, it can be seen that the radius R2 of the first radiating part 301 is directly proportional to the coupling coefficient M1. Therefore, by making the radius R2 of the first radiating part 301 greater than or equal to the first preset radius, it is beneficial to increase the coupling coefficient M1 between the first radiating part 301 and the transmitting antenna radiator 20, ensuring that the coupling coefficient M1 between the first radiating part 301 and the transmitting antenna radiator 20 is greater than or equal to the preset coupling coefficient. This guarantees a larger coupling coefficient M1 between the first radiating part 301 and the transmitting antenna radiator 20, thereby improving the coupling effect between the first radiating part 301 and the transmitting antenna radiator 20, enabling the first radiating part 301 to receive more first antenna signals and / or second antenna signals transmitted by the transmitting antenna radiator 20.

[0053] Optionally, the first preset radius can be equal to 5mm. It is understood that the radius of the first radiating part 301 is greater than or equal to 5mm. For example, the radius of the first radiating part 301 can be selected between 10mm and 30mm. Selecting the radius of the first radiating part 301 between 10mm and 30mm has been experimentally verified to ensure good coupling between the first radiating part 301 and the transmitting antenna radiator 20, while also being suitable for handheld terminals such as mobile phones. In the following embodiments, the radius of the first radiating part 301 is approximately 25mm as an example.

[0054] Furthermore, it can be seen from the formula for the coupling coefficient M1 between the first radiating part 301 and the transmitting antenna radiator 20 that the radius R1 of the transmitting antenna radiator 20 is inversely proportional to M1. That is, when the radius R1 of the transmitting antenna radiator 20 is larger, the coupling coefficient M1 between the first radiating part 301 and the transmitting antenna radiator 20 is smaller, and the coupling effect between the first radiating part 301 and the transmitting antenna radiator 20 is poor. Therefore, in one embodiment of this application, the radius R1 of the transmitting antenna radiator 20 can be the same as the radius R2 of the first radiating part 301. This reduces the cancellation of opposing magnetic field lines when the magnetic field generated by the transmitting antenna radiator 20 passes through the first radiating part 301, and also increases the coupling coefficient M1 between the first radiating part 301 and the transmitting antenna radiator 20, ensuring that the coupling coefficient M1 between the first radiating part 301 and the transmitting antenna radiator 20 is greater than or equal to a preset coupling coefficient. For example, the radius of the transmitting antenna radiator 20 can be selected from between 10mm and 30mm. In the following embodiments, the radius of the transmitting antenna radiator 20 is approximately 25 mm.

[0055] In another possible embodiment, such as Figure 8 As shown, the edges of the first radiating part 301 are polygonal, and the edges of the transmitting antenna radiator 20 are polygonal. The area enclosed by the edges of the first radiating part 301 is less than or equal to the area enclosed by the edges of the transmitting antenna radiator 20. Optionally, the edges of the first radiating part 301 are rectangular, the edges of the transmitting antenna radiator 20 are rectangular, and the area enclosed by the edges of the first radiating part 301 is less than or equal to the area enclosed by the edges of the transmitting antenna radiator 20; or, the edges of the first radiating part 301 are square, the edges of the transmitting antenna radiator 20 are rectangular, and the area enclosed by the edges of the first radiating part 301 is less than or equal to the area enclosed by the edges of the transmitting antenna radiator 20. Alternatively, the edge of the first radiating part 301 may be rectangular, and the edge of the transmitting antenna radiator 20 may be square, with the area enclosed by the edge of the first radiating part 301 being less than or equal to the area enclosed by the edge of the transmitting antenna radiator 20; or, the edge of the first radiating part 301 may be square, and the edge of the transmitting antenna radiator 20 may be square, with the area enclosed by the edge of the first radiating part 301 being less than or equal to the area enclosed by the edge of the transmitting antenna radiator 20. Of course, in other embodiments, the edge of the first radiating part 301 may also be triangular, pentagonal, hexagonal, etc. The edge of the transmitting antenna radiator 20 may also be triangular, pentagonal, hexagonal, etc. The shape enclosed by the edge of the first radiating part 301 may be the same as or different from the shape enclosed by the edge of the transmitting antenna radiator 20.

[0056] Similarly to the above embodiments, since the first radiating part 301 is coupled to the transmitting antenna radiator 20, by making the area of ​​the region enclosed by the edge of the first radiating part 301 smaller than or equal to the area of ​​the region enclosed by the edge of the transmitting antenna radiator 20, the phenomenon of magnetic leakage caused by the magnetic field generated by the transmitting antenna radiator 20 canceling out the opposing magnetic field lines when passing through the first radiating part 301 can be reduced. This can improve the coupling effect between the first radiating part 301 and the transmitting antenna radiator 20, enabling the first radiating part 301 to receive more first antenna signals and / or second antenna signals.

[0057] When the edges of the first radiating part 301 and the transmitting antenna radiator 20 are arranged in a polygonal shape, the radius R1 of the transmitting antenna radiator 20 in the formula for the coupling coefficient M1 between the first radiating part 301 and the transmitting antenna radiator 20 can be approximately equivalent to the area of ​​the region enclosed by the edges of the transmitting antenna radiator 20, and the radius R2 of the first radiating part 301 can be approximately equivalent to the area of ​​the region enclosed by the edges of the first radiating part 301. That is, in this embodiment, by designing the relative permeability μ1 of the transmitting antenna radiator 20, the area of ​​the region enclosed by the edges of the first radiating part 301, and the area of ​​the region enclosed by the edges of the second radiating part 302, the coupling coefficient between the first radiating part 301 and the transmitting antenna radiator 20 can be changed, thereby achieving a coupling coefficient between the first radiating part 301 and the transmitting antenna radiator 20 that is greater than or equal to a preset coupling coefficient.

[0058] In one possible implementation, the area enclosed by the edge of the first radiating part 301 is greater than or equal to a first preset area. Similarly to the above embodiment, when the edge of the first radiating part 301 forms a polygon, the area enclosed by the edge of the first radiating part 301 is proportional to the coupling coefficient between the first radiating part 301 and the transmitting antenna radiator 20. Therefore, by making the area enclosed by the edge of the first radiating part 301 greater than or equal to the first preset area, it is beneficial to increase the coupling coefficient between the first radiating part 301 and the transmitting antenna radiator 20, ensuring that the coupling coefficient between the first radiating part 301 and the transmitting antenna radiator 20 is greater than or equal to the preset coupling coefficient. This guarantees a larger coupling coefficient between the first radiating part 301 and the transmitting antenna radiator 20, thereby improving the coupling effect between the first radiating part 301 and the transmitting antenna radiator 20, enabling the first radiating part 301 to receive more first antenna signals and / or second antenna signals transmitted by the transmitting antenna radiator 20.

[0059] Optionally, the first preset area can be equal to 100mm². 2Understandably, the area enclosed by the edge of the first radiating section 301 is greater than or equal to 100 mm². 2 For example, the area enclosed by the edge of the first radiating part 301 can be selected from 20mm*20mm to 60mm*60mm. Experiments have verified that this selection ensures good coupling between the first radiating part 301 and the transmitting antenna radiator 20, while also being suitable for handheld terminals such as mobile phones. In the following embodiment, the radius of the first radiating part 301 is approximately 50mm*50mm.

[0060] Furthermore, by approximating the radius in the formula for the coupling coefficient M1 between the first radiating part 301 and the transmitting antenna radiator 20 with the area of ​​the region enclosed by the edge of the corresponding radiator, it can be seen that the area of ​​the region enclosed by the edge of the transmitting antenna radiator 20 is inversely proportional to the coupling coefficient between the first radiating part 301 and the transmitting antenna radiator 20. That is, when the area of ​​the region enclosed by the edge of the transmitting antenna radiator 20 is large, the coupling coefficient M1 between the first radiating part 301 and the transmitting antenna radiator 20 is small, and the coupling effect between the first radiating part 301 and the transmitting antenna radiator 20 is poor. Therefore, in one embodiment of this application, the area enclosed by the edge of the transmitting antenna radiator 20 can be the same as the area enclosed by the edge of the first radiating part 301. This reduces the cancellation of opposing magnetic field lines when the magnetic field generated by the transmitting antenna radiator 20 passes through the first radiating part 301, and also increases the coupling coefficient between the first radiating part 301 and the transmitting antenna radiator 20, ensuring that the coupling coefficient between the first radiating part 301 and the transmitting antenna radiator 20 is greater than or equal to a preset coupling coefficient. For example, the area enclosed by the edge of the transmitting antenna radiator 20 can be selected from 20mm*20mm to 60mm*60mm. In the following embodiments, the area enclosed by the edge of the transmitting antenna radiator 20 is approximately 50mm*50mm.

[0061] The relative permeability of the transmitting antenna radiator 20 can be greater than or equal to a first preset relative permeability. According to the formula for the coupling coefficient M1 between the first radiating part 301 and the transmitting antenna radiator 20, it can be seen that the relative permeability μ1 of the transmitting antenna radiator 20 is directly proportional to the coupling coefficient M1. Therefore, by making the relative permeability μ1 of the transmitting antenna radiator 20 greater than or equal to the first preset relative permeability, it is also beneficial to make the coupling coefficient M1 between the first radiating part 301 and the transmitting antenna radiator 20 greater than or equal to the preset coupling coefficient. This ensures that the coupling coefficient M1 between the first radiating part 301 and the transmitting antenna radiator 20 is relatively large, thereby improving the coupling effect between the first radiating part 301 and the transmitting antenna radiator 20, enabling the first radiating part 301 to receive more first antenna signals and / or second antenna signals.

[0062] The relative permeability of the transmitting antenna radiator 20 is related to its properties, such as the material and manufacturing process. A higher relative permeability μ1 of the transmitting antenna radiator 20 results in a higher coupling coefficient M1 between the first radiating part 301 and the transmitting antenna radiator 20. However, excessively high relative permeability can also lead to increased magnetic losses. Therefore, in one possible implementation, the relative permeability of the transmitting antenna radiator 20 can be selected between 130 and 300.

[0063] Optionally, the quality factor of the first radiating part 301 is greater than or equal to the first preset quality factor.

[0064] The quality factor Q1 of the first radiating section 301 can be expressed as: In the formula, f1 is the resonant frequency of the first radiating part 301, which is determined based on the first antenna signal or the second antenna signal; when the relay antenna radiator 30 relays the NFC signal, the resonant frequency f1 of the first radiating part 301 can be 13.56MHz. a The self-inductance of the first radiating section 301; R a ρ is the impedance of the first radiating part 301; l1 is the length of a single loop of the first radiating part 301; N1 is the number of turns of the first radiating part 301; L1 is the total length of the first radiating part 301, that is, the length of all the loops of the first radiating part 301; ρ1 is the conductivity of the first radiating part 301; r1 is the radius of the loop of the first radiating part 301.

[0065] Based on the formula for the quality factor Q1 of the first radiating part 301, it can be seen that by designing the length l1 of the single-turn wire loop of the first radiating part 301, the number of turns N1 of the first radiating part 301, the wire radius r1 of the wire loop of the first radiating part 301, the total length L1 of the first radiating part 301, and the conductivity ρ1 of the first radiating part 301, the quality factor Q1 of the first radiating part 301 can be changed, so that the quality factor Q1 of the first radiating part 301 is greater than or equal to the first preset quality factor, thereby improving the efficiency of the first radiating part 301 in receiving the first antenna signal and / or the second antenna signal emitted by the transmitting antenna radiator 20 and improving the efficiency of the first radiating part 301 in forwarding the first antenna signal and / or the second antenna signal.

[0066] In one possible embodiment, the first radiating part 301 includes one or more turns of a first conductive loop. The length of a single turn of the first conductive loop is greater than or equal to a first preset length, the radius of the first conductive loop is greater than or equal to a second preset radius, and the total length of the first radiating part 301 is less than or equal to the second preset length. The conductivity of the first radiating part 301 is less than or equal to the first preset conductivity. Based on the formula for the quality factor Q1 of the first radiating part 301, it can be seen that: the length l1 of a single turn of the first radiating part 301, the number of turns N1 of the first radiating part 301, and the radius r1 of the conductive loop of the first radiating part 301 are directly proportional to the quality factor Q1 of the first radiating part 301; the total length L1 of the first radiating part 301 and the conductivity ρ1 of the first radiating part 301 are inversely proportional to the quality factor Q1 of the first radiating part 301. In other words, the larger the length l1 of the single-turn wire loop in the first radiating part 301, the number of coil turns N1 of the first radiating part 301, and the wire radius r1 of the wire loop in the first radiating part 301, the larger the quality factor Q1 of the first radiating part 301, which is more conducive to achieving a quality factor Q1 greater than or equal to a first preset quality factor. The smaller the total length L1 of the first radiating part 301 and the conductivity ρ1 of the first radiating part 301, the larger the quality factor Q1 of the first radiating part 301, which is more conducive to achieving a quality factor Q1 greater than or equal to a first preset quality factor. Therefore, by making the length of the single-loop first conductor loop greater than or equal to the first preset length, the conductor radius of the first conductor loop greater than or equal to the second preset radius, and the total length of the first radiating part 301 less than or equal to the second preset length, and the conductivity of the first radiating part 301 less than or equal to the first preset conductivity, the quality factor Q1 of the designed first radiating part 301 can be made larger. This is beneficial to achieving a quality factor of the first radiating part 301 greater than or equal to the first preset quality factor, thereby improving the efficiency of the first radiating part 301 in receiving the first antenna signal and / or the second antenna signal emitted by the transmitting antenna radiator 20, and improving the efficiency of the first radiating part 301 in forwarding the first antenna signal and / or the second antenna signal.

[0067] In one possible implementation, the first preset length can be 15 mm. The second preset radius can be 0.05 mm. The second preset length can be 8000 mm. The conductivity of the first radiating part 301 is related to the material of the first radiating part 301. Optionally, the material of the first radiating part 301 is copper, in which case the conductivity of the first radiating part 301 is approximately 1.673*10. -6 Ω / cm, the first preset conductivity can be 1.673*10 -6 Ω / cm. The length of the first lead loop in a single turn is greater than or equal to 15 mm; the radius of the lead loop is greater than or equal to 0.05 mm; the total length of the first radiating part 301 is less than or equal to 8000 mm; the conductivity of the first radiating part 301 can be 1.673*10. -6 Ω / cm. For example: the number of turns of the first radiating part 301 can be selected from 1 to 20. The length of a single turn of the first conductor loop can be selected from 20mm to 400mm. The conductor radius of the first conductor loop can be selected from 0.05mm to 1mm. The total length of the first radiating part 301 can be calculated based on the number of turns of the first radiating part 301 and the length of a single turn of the first conductor loop. The material of the first radiating part 301 can be selected between copper and silver. By allowing the number of turns of the first radiating part 301 to be selected from 1 to 20, the length of a single turn of the first conductor loop to be selected from 20mm to 400mm, and the conductor radius of the first conductor loop to be selected from 0.05mm to 1mm, experiments have verified that while ensuring a high quality factor for the first radiating part 301, it is suitable for handheld terminals such as mobile phones. In addition, the conductor radius of the first conductor loop can be selected from 0.05mm to 1mm, which is beneficial for forming the first radiating part 301 using enameled wire.

[0068] Optionally, the quality factor of the transmitting antenna radiator 20 is greater than or equal to a second preset quality factor.

[0069] The quality factor Q2 of the transmitting antenna radiator 20 can be expressed as: In the formula, f2 is the resonant frequency of the transmitting antenna radiator 20, which is determined based on the first antenna signal or the second antenna signal; when the transmitting antenna radiator 20 transmits an NFC signal, the resonant frequency f2 of the transmitting antenna radiator 20 can be 13.56MHz. b R is the self-inductance of the transmitting antenna radiator 20; bρ is the impedance of the transmitting antenna radiator 20; l2 is the length of a single-turn wire loop in the transmitting antenna radiator 20; N2 is the number of turns in the transmitting antenna radiator 20; L2 is the total length of the transmitting antenna radiator 20, i.e., the length of all the wire loops in the transmitting antenna radiator 20; ρ2 is the conductivity of the transmitting antenna radiator 20; r2 is the wire radius of the wire loop in the transmitting antenna radiator 20.

[0070] Based on the formula for the quality factor Q2 of the transmitting antenna radiator 20, it can be seen that by designing the length l2 of the single-turn wire loop in the transmitting antenna radiator 20, the number of winding coils N2 of the transmitting antenna radiator 20, the wire radius r2 of the wire loop in the transmitting antenna radiator 20, the total length L2 of the transmitting antenna radiator 20, and the conductivity ρ2 of the transmitting antenna radiator 20, the quality factor Q2 of the transmitting antenna radiator 20 can be changed, so that the quality factor Q2 of the transmitting antenna radiator 20 is greater than or equal to the second preset quality factor, thereby improving the efficiency of the transmitting antenna radiator 20 in transmitting the first antenna signal and / or the second antenna signal.

[0071] In one possible embodiment, the transmitting antenna radiator 20 includes one or more turns of a second conductor loop. The length of a single turn of the second conductor loop is greater than or equal to a third preset length, the conductor radius of the second conductor loop is greater than or equal to a third preset radius, and the total length of the transmitting antenna radiator 20 is less than or equal to a fourth preset length. The conductivity of the transmitting antenna radiator 20 is less than or equal to a second preset conductivity. Based on the formula for the quality factor Q2 of the transmitting antenna radiator 20, it can be seen that: the length l2 of a single turn of the conductor loop in the transmitting antenna radiator 20, the number of turns N2 of the transmitting antenna radiator 20, and the conductor radius r2 of the conductor loop of the transmitting antenna radiator 20 are directly proportional to the quality factor Q2 of the transmitting antenna radiator 20; the total length L2 of the transmitting antenna radiator 20 and the conductivity ρ2 of the transmitting antenna radiator 20 are inversely proportional to the quality factor Q2 of the transmitting antenna radiator 20. In other words, the larger the length l2 of the single-turn wire loop in the transmitting antenna radiator 20, the number of turns N2 in the transmitting antenna radiator 20, and the larger the wire radius r2 of the wire loop in the transmitting antenna radiator 20, the larger the quality factor Q2 of the transmitting antenna radiator 20, which is more conducive to making the quality factor Q2 of the transmitting antenna radiator 20 greater than or equal to the second preset quality factor. The smaller the total length L2 of the transmitting antenna radiator 20 and the smaller the conductivity ρ2 of the transmitting antenna radiator 20, the larger the quality factor Q2 of the transmitting antenna radiator 20, which is more conducive to making the quality factor of the transmitting antenna radiator 20 greater than or equal to the second preset quality factor. Therefore, in this embodiment, by making the length of the single-loop second conductor ring greater than or equal to the third preset length, the conductor radius of the second conductor ring greater than or equal to the third preset radius, and the total length of the transmitting antenna radiator 20 less than or equal to the fourth preset length, and the conductivity of the transmitting antenna radiator 20 less than or equal to the second preset conductivity, the quality factor Q2 of the designed transmitting antenna radiator 20 can be made larger. This is beneficial for achieving a quality factor of the transmitting antenna radiator 20 greater than or equal to the second preset quality factor, thereby improving the efficiency of the transmitting antenna radiator 20 in transmitting the first antenna signal and / or the second antenna signal.

[0072] In one possible implementation, the third preset length can be 15 mm. The third preset radius can be 0.15 mm. The fourth preset length can be 8000 mm. The conductivity of the transmitting antenna radiator 20 is related to the material of the transmitting antenna radiator 20. Optionally, the material of the transmitting antenna radiator 20 is copper, in which case the conductivity of the transmitting antenna radiator 20 is approximately 1.673*10. -6 Ω / cm, the second preset conductivity can be 1.673*10 -6Ω / cm. Understandably, the length of the second conductor loop in a single turn is greater than or equal to 15mm; the conductor radius of the second conductor loop is greater than or equal to 0.15mm; the total length of the transmitting antenna radiator 20 is less than or equal to 8000mm; and the conductivity of the transmitting antenna radiator 20 can be 1.673*10. -6 Ω / cm. For example: the number of coils in the transmitting antenna radiator 20 can be selected from 1 to 20. The length of a single second lead loop can be selected from 20mm to 400mm. The radius of the second lead loop can be selected from 0.15mm to 20mm. The total length of the transmitting antenna radiator 20 can be calculated based on the number of coils in the transmitting antenna radiator 20 and the length of a single second lead loop. The material of the transmitting antenna radiator 20 can be selected between copper and silver. By allowing the number of coils in the transmitting antenna radiator 20 to be selected from 1 to 20, the length of a single second lead loop to be selected from 20mm to 400mm, and the radius of the second lead loop to be selected from 0.15mm to 20mm, experiments have verified that while ensuring a high quality factor for the transmitting antenna radiator 20, it is suitable for handheld terminals such as mobile phones. In addition, the wire radius of the second wire loop can be selected from 0.15mm to 20mm, which is beneficial for forming a printed circuit board (PCB) or flexible printed circuit (FPC) type transmitting antenna radiator 20.

[0073] Optionally, the mutual inductance coefficient between the second radiating part 302 and the first receiving antenna radiator 10 is greater than or equal to a preset mutual inductance coefficient.

[0074] The mutual inductance coefficient M2 between the second radiating part 302 and the first receiving antenna radiator 10 can be expressed as: Wherein, φ2 is the magnetic flux of the first receiving antenna radiator 10; I2 is the current of the second radiating part 302; N3 is the number of windings of the second radiating part 302; N4 is the number of windings of the first receiving antenna radiator 10; S2 is the cross-sectional area of ​​the second radiating part 302; l3 is the length of the second radiating part 302; and μ2 is the relative permeability of the magnetic core 50. From the formula for the mutual inductance coefficient M2 between the second radiating part 302 and the first receiving antenna radiator 10, it can be seen that by designing the relative permeability μ2 of the magnetic core 50, the number of winding coils N3 of the second radiating part 302, the number of winding coils N4 of the first receiving antenna radiator 10, the cross-sectional area S2 of the second radiating part 302, and the length l3 of the second radiating part 302, the mutual inductance coefficient M2 between the second radiating part 302 and the first receiving antenna radiator 10 can be changed. This is beneficial to ensure that the mutual inductance coefficient between the second radiating part 302 and the first receiving antenna radiator 10 is greater than or equal to the preset mutual inductance coefficient, thereby improving the mutual inductance effect between the second radiating part 302 and the first receiving antenna radiator 10, so that the first receiving antenna radiator 10 can receive more first antenna signals.

[0075] In one possible embodiment, the relative permeability of the magnetic core 50 is greater than or equal to a second preset relative permeability, the number of coil turns of the second radiating part 302 is greater than or equal to a first preset number of turns, the number of coil turns of the first receiving antenna radiator 10 is greater than or equal to a second preset number of turns, the cross-sectional area of ​​the second radiating part 302 is greater than or equal to a second preset area, and the length of the second radiating part 302 is less than or equal to a fifth preset length. From the formula for the mutual inductance coefficient M2 between the second radiating part 302 and the first receiving antenna radiator 10, it can be seen that the relative permeability μ2 of the magnetic core 50, the number of coil turns N3 of the second radiating part 302, the number of coil turns N4 of the first receiving antenna radiator 10, and the cross-sectional area S2 of the second radiating part 302 are directly proportional to the mutual inductance coefficient M2, while the length l3 of the second radiating part 302 is inversely proportional to the mutual inductance coefficient M2. Therefore, by making the relative permeability of the magnetic core 50 greater than or equal to the second preset relative permeability and the number of coil turns of the second radiating part 302 greater than or equal to the first preset number of turns, the first receiving antenna radiator 10... The number of coil turns of the linear radiator 10 is greater than or equal to the second preset number of turns, the cross-sectional area of ​​the second radiating part 302 is greater than or equal to the second preset area, and the length of the second radiating part 302 is less than or equal to the fifth preset length. This is beneficial to increase the mutual inductance coefficient M2 between the second radiating part 302 and the first receiving antenna radiator 10, so that the mutual inductance coefficient between the second radiating part 302 and the first receiving antenna radiator 10 is greater than or equal to the preset mutual inductance coefficient, thereby improving the mutual inductance effect between the second radiating part 302 and the first receiving antenna radiator 10, so that the first receiving antenna radiator 10 can receive more first antenna signals.

[0076] In one possible implementation, the second preset relative permeability can be 100. The first preset number of turns can be 5. The second preset number of turns can be 5; the second preset area can be 1 mm². 2 The fifth preset length can be 0.5mm. Understandably, the relative permeability of the magnetic core 50 is greater than or equal to 100, the number of coil turns of the second radiating part 302 is greater than or equal to 5, the number of coil turns of the first receiving antenna radiator 10 is greater than or equal to 5, and the cross-sectional area of ​​the second radiating part 302 is greater than or equal to 1mm². 2 The length of the second radiating section 302 is less than or equal to 0.5 mm. Optionally, the relative permeability of the magnetic core 50 can be selected from between 130 and 300. The number of coil turns of the second radiating section 302 can be selected from between 5 and 200. The number of coil turns of the first receiving antenna radiator 10 can be selected from between 5 and 200. The cross-sectional area of ​​the second radiating section 302 can be selected from 1 mm². 2 ~400mm 2 The cross-sectional shape of the second radiating part 302 can be circular, square, rectangular, etc.

[0077] like Figure 9 As shown, the magnetic core 50 includes a first magnetic core portion 501 and a second magnetic core portion 502 connected together. In this application, the first magnetic core portion 501 and the second magnetic core portion 502 are directly connected. The second radiating portion 302 is disposed around the first magnetic core portion 501, and the first radiating portion 301 is disposed around the second magnetic core portion 502. The cross-sectional area of ​​the first receiving antenna radiator 10 is the same as the cross-sectional area of ​​the second radiating portion 302. By making the cross-sectional area of ​​the first receiving antenna radiator 10 the same as the cross-sectional area of ​​the second radiating portion 302, it is beneficial to reduce the phenomenon of magnetic leakage caused by the opposite magnetic field lines canceling each other when the magnetic field generated by the second radiating portion 302 passes through the first receiving antenna radiator 10. This improves the mutual inductance effect between the second radiating portion 302 and the first receiving antenna radiator 10, allowing the first receiving antenna radiator 10 to receive more of the second antenna signal relayed by the second radiating portion 302.

[0078] Optionally, the quality factor of the second radiating part 302 is greater than or equal to the third preset quality factor.

[0079] When the magnetic core 50 is a cube, such as a cuboid or rectangular prism, the quality factor Q3 of the second radiating part 302 can be expressed as: In the formula, f3 is the resonant frequency of the second radiating part 302, which is the same as the resonant frequency of the first radiating part 301. c For the self-inductance of the second radiating section 302; R cρ1 is the impedance of the second radiating part 302; μ2 is the relative permeability of the magnetic core 50; N3 is the number of coils in the second radiating part 302; S3 is the cross-sectional area of ​​the magnetic core 50; d1 is the length of the second radiating part 302; ρ3 is the conductivity of the second radiating part 302; L3 is the total length of the wire loops in the second radiating part 302; s3 is the cross-sectional area of ​​a single winding in the second radiating part 302; a is the length of the cross-section of the magnetic core 50; b is the width of the cross-section of the magnetic core 50; r3 is the wire radius of the wire loops in the second radiating part 302.

[0080] Based on the formula for the quality factor Q3 of the second radiating part 302, it can be seen that by designing the relative permeability μ2 of the magnetic core 50, the length a of the cross-section of the magnetic core 50, the width b of the cross-section of the magnetic core 50, the wire radius r3 of the wire loop of the second radiating part 302, and the conductivity ρ3 of the second radiating part 302, the quality factor Q3 of the second radiating part 302 can be changed, so that the quality factor Q3 of the second radiating part 302 is greater than or equal to the third preset quality factor, thereby improving the efficiency of the second radiating part 302 in forwarding the first antenna signal.

[0081] In one possible embodiment, the magnetic core 50 is a cube or cubic shape, the length of the cross-section of the magnetic core 50 is greater than or equal to a sixth preset length, and the width of the cross-section of the magnetic core 50 is greater than or equal to a preset width. From the formula for the quality factor Q3 of the second radiating part 302 described above, it can be seen that when the magnetic core 50 is a cube or cubic shape, the relative permeability μ2 of the magnetic core 50, the length a of the cross-section of the magnetic core 50, the width b of the cross-section of the magnetic core 50, and the wire radius r3 of the wire loop of the second radiating part 302 are directly proportional to the quality factor Q3 of the second radiating part 302, while the conductivity ρ3 of the second radiating part 302 is inversely proportional to the quality factor Q3 of the second radiating part 302. In other words, the larger the relative permeability μ2 of the magnetic core 50, the length a of the cross-section of the magnetic core 50, the width b of the cross-section of the magnetic core 50, and the wire radius r3 of the wire loop of the second radiating part 302, the smaller the conductivity ρ3 of the second radiating part 302, and the larger the quality factor Q3 of the second radiating part 302. This is more conducive to achieving a quality factor Q3 of the second radiating part 302 that is greater than or equal to a third preset quality factor. Therefore, by making the length of the cross-section of the magnetic core 50 greater than or equal to a sixth preset length and the width of the cross-section of the magnetic core 50 greater than or equal to a preset width, this embodiment can make the quality factor Q3 of the designed second radiating part 302 larger, achieving a quality factor of the second radiating part 302 that is greater than or equal to the third preset quality factor. This improves the efficiency of the second radiating part 302 in receiving the first antenna signal transmitted by the first radiating part 301 and the efficiency of the second radiating part 302 in forwarding the first antenna signal to the first receiving antenna radiator 10.

[0082] In one possible implementation, the sixth preset length can be 1 mm. The preset width can be 1 mm. It is understood that the length of the cross-section of the magnetic core 50 is greater than or equal to 1 mm, and the width of the cross-section of the magnetic core 50 is greater than or equal to 1 mm. Optionally, the length of the cross-section of the magnetic core 50 can be selected from 1 mm to 20 mm. The width of the cross-section of the magnetic core 50 can be selected from 1 mm to 20 mm. By allowing the length of the cross-section of the magnetic core 50 to be selected from 1 mm to 20 mm, and the width of the cross-section of the magnetic core 50 to be selected from 1 mm to 20 mm, experiments have verified that while ensuring a large quality factor Q3 for the second radiating part 302, it is suitable for wireless charging of electronic accessories such as electronic pens.

[0083] When the magnetic core 50 is a cylinder, the quality factor Q3 of the second radiating part 302 can be expressed as: In the formula, f3 and L c R c μ2, N3, S3, L3, r 3、 ρ3 and d1 are defined the same as in the above embodiments, and will not be repeated here. s4 is the cross-sectional area of ​​a single winding of the second radiating part 302; R is the radius of the magnetic core 50.

[0084] Based on the formula for the quality factor Q3 of the second radiating part 302, it can be seen that by designing the relative permeability μ2 of the magnetic core 50, the radius R of the magnetic core 50, the wire radius r3 of the wire loop of the second radiating part 302, and the conductivity ρ3 of the second radiating part 302, the quality factor Q3 of the second radiating part 302 can be changed, so that the quality factor Q3 of the second radiating part 302 is greater than or equal to the third preset quality factor, thereby improving the efficiency of the second radiating part 302 in forwarding the first antenna signal.

[0085] In one possible embodiment, the magnetic core 50 is a cylinder, and the radius of the magnetic core 50 is greater than or equal to a fourth preset radius. From the formula for the quality factor Q3 of the second radiating part 302 described above, it can be seen that when the magnetic core 50 is a cylinder, the relative permeability μ2 of the magnetic core 50, the radius of the magnetic core 50, and the wire radius r3 of the wire loop of the second radiating part 302 are directly proportional to the quality factor Q3 of the second radiating part 302, while the conductivity ρ3 of the second radiating part 302 is inversely proportional to the quality factor Q3 of the second radiating part 302. In other words, the larger the relative permeability μ2 of the magnetic core 50, the radius R of the magnetic core 50, and the wire radius r3 of the wire loop of the second radiating part 302, the smaller the conductivity ρ3 of the second radiating part 302, and the larger the quality factor Q3 of the second radiating part 302. This is more conducive to achieving a quality factor Q3 of the second radiating part 302 that is greater than or equal to a third preset quality factor. Therefore, by making the radius of the magnetic core 50 greater than or equal to the fourth preset radius, this embodiment is beneficial to make the quality factor Q3 of the designed second radiating part 302 larger, so that the quality factor of the second radiating part 302 is greater than or equal to the third preset quality factor, thereby improving the efficiency of the second radiating part 302 in receiving the first antenna signal transmitted by the first radiating part 301 and improving the efficiency of the second radiating part 302 in forwarding the first antenna signal to the first receiving antenna radiator 10.

[0086] In one possible implementation, the fourth preset radius can be 0.5 mm. It is understood that the radius of the magnetic core 50 is greater than or equal to 0.5 mm. Optionally, the radius of the magnetic core 50 can be selected from 0.5 mm to 10 mm.

[0087] Furthermore, the conductivity of the second radiating part 302 is less than or equal to the third preset conductivity, and the second radiating part 302 includes one or more turns of a third conductive loop, the radius of which is greater than or equal to the fifth preset radius. From the formula for the quality factor Q3 of the second radiating part 302, it can be seen that regardless of whether the magnetic core 50 is a cube, cuboid, or cylinder, the radius r3 of the conductive loop of the second radiating part 302 is directly proportional to the quality factor Q3, and the conductivity ρ3 of the second radiating part 302 is inversely proportional to the quality factor Q3. Therefore, by making the conductivity of the second radiating part 302 less than or equal to the third preset conductivity and the radius of the third conductive loop greater than or equal to the fifth preset radius, it is also beneficial to make the designed quality factor Q3 of the second radiating part 302 larger, thereby achieving a quality factor greater than or equal to the third preset quality factor. The material of the second radiating part 302 can be the same as that of the first radiating part 301. The conductivity of the second radiating part 302 is the same as that of the first radiating part 301. The third preset conductivity can be the same as the first preset conductivity. The second radiating part 302 and the first radiating part 301 can be formed using the same conductor, that is, the conductor radius of the conductor loop of the second radiating part 302 can be equal to the conductor radius of the conductor loop of the first radiating part 301.

[0088] Optionally, the quality factor of the first receiving antenna radiator 10 is greater than or equal to a fourth preset quality factor.

[0089] When the magnetic core 50 is a cube or cubic shape, the quality factor Q4 of the first receiving antenna radiator 10 can be expressed as: In the formula, f4 is the resonant frequency of the receiving antenna radiator 10, which can be the same as the resonant frequency of the second radiating part 302; L d R is the self-inductance of the first receiving antenna radiator 10; d ρ is the impedance of the first receiving antenna radiator 10; μ2 is the relative permeability of the magnetic core 50; N4 is the number of coils in the first receiving antenna radiator 10; S3 is the cross-sectional area of ​​the magnetic core 50; d2 is the length of the first receiving antenna radiator 10; ρ4 is the conductivity of the first receiving antenna radiator 10; L4 is the total length of the first receiving antenna radiator 10; s5 is the cross-sectional area of ​​a single winding of the first receiving antenna radiator 10; a is the length of the cross-section of the magnetic core 50; b is the width of the cross-section of the magnetic core 50; r4 is the radius of the wire loop of the first receiving antenna radiator 10.

[0090] Based on the formula for the quality factor Q4 of the first receiving antenna radiator 10, it can be seen that by designing the relative permeability μ2 of the magnetic core 50, the length a of the cross-section of the magnetic core 50, the width b of the cross-section of the magnetic core 50, the wire radius r4 of the wire loop of the first receiving antenna radiator 10, and the conductivity ρ4 of the first receiving antenna radiator 10, the quality factor Q4 of the first receiving antenna radiator 10 can be changed, so that the quality factor Q4 of the first receiving antenna radiator 10 is greater than or equal to the fourth preset quality factor, thereby improving the efficiency of the first receiving antenna radiator 10 in receiving the first antenna signal.

[0091] In one possible embodiment, the magnetic core 50 is a cube or cubic shape, the length of the cross-section of the magnetic core 50 is greater than or equal to a sixth preset length, and the width of the cross-section of the magnetic core 50 is greater than or equal to a preset width. From the formula for the quality factor Q4 of the first receiving antenna radiator 10, it can be seen that when the magnetic core 50 is a cube or cubic shape, the relative permeability μ2 of the magnetic core 50, the length a of the cross-section of the magnetic core 50, the width b of the cross-section of the magnetic core 50, and the wire radius r4 of the wire loop of the first receiving antenna radiator 10 are directly proportional to the quality factor Q4 of the first receiving antenna radiator 10, while the conductivity ρ4 of the first receiving antenna radiator 10 is inversely proportional to the quality factor Q4 of the first receiving antenna radiator 10. In other words, the larger the relative permeability μ2 of the magnetic core 50, the length a of the cross-section of the magnetic core 50, the width b of the cross-section of the magnetic core 50, and the wire radius r4 of the wire loop of the first receiving antenna radiator 10, the smaller the conductivity ρ4 of the first receiving antenna radiator 10, and the larger the quality factor Q4 of the first receiving antenna radiator 10. This is more conducive to achieving a quality factor Q4 of the first receiving antenna radiator 10 that is greater than or equal to a fourth preset quality factor. Therefore, in this embodiment, by making the length of the cross-section of the magnetic core 50 greater than or equal to a sixth preset length and the width of the cross-section of the magnetic core 50 greater than or equal to a preset width, the quality factor Q4 of the designed first receiving antenna radiator 10 can also be made larger, achieving a quality factor of the first receiving antenna radiator 10 that is greater than or equal to the fourth preset quality factor, thereby improving the efficiency of the first receiving antenna radiator 10 in receiving the first antenna signal.

[0092] In one possible implementation, the sixth preset length can be 1 mm. The preset width can be 1 mm. It is understood that the length of the cross-section of the magnetic core 50 is greater than or equal to 1 mm, and the width of the cross-section of the magnetic core 50 is greater than or equal to 1 mm. Optionally, the length of the cross-section of the magnetic core 50 can be selected from 1 mm to 20 mm. The width of the cross-section of the magnetic core 50 can be selected from 1 mm to 20 mm. By allowing the length of the cross-section of the magnetic core 50 to be selected from 1 mm to 20 mm, and the width of the cross-section of the magnetic core 50 to be selected from 1 mm to 20 mm, experiments have verified that while ensuring a large quality factor Q4 for the first receiving antenna radiator 10, it is suitable for wireless charging of electronic accessories such as electronic pens.

[0093] When the magnetic core 50 is a cylinder, the quality factor Q4 of the first receiving antenna radiator 10 can be expressed as: In the formula, f3 and L d R d μ2, N4, S3, L4, r 4、 ρ4 and d2 are defined the same as in the above embodiments, and will not be repeated here. s6 is the cross-sectional area of ​​a single winding of the first receiving antenna radiator 10; R is the radius of the magnetic core 50.

[0094] Based on the formula for the quality factor Q4 of the first receiving antenna radiator 10, it can be seen that by designing the relative permeability μ2 of the magnetic core 50, the radius R of the magnetic core 50, the wire radius r4 of the wire loop of the first receiving antenna radiator 10, and the conductivity ρ4 of the first receiving antenna radiator 10, the quality factor Q4 of the first receiving antenna radiator 10 can be changed, so that the quality factor Q4 of the first receiving antenna radiator 10 is greater than or equal to the fourth preset quality factor, thereby improving the efficiency of the first receiving antenna radiator 10 in receiving the first antenna signal.

[0095] In one possible embodiment, the magnetic core 50 is a cylinder, and the radius of the magnetic core 50 is greater than or equal to a fourth preset radius. From the formula for the quality factor Q4 of the first receiving antenna radiator 10, it can be seen that when the magnetic core 50 is a cylinder, the relative permeability μ2 of the magnetic core 50, the radius R of the magnetic core 50, and the wire radius r4 of the wire loop of the first receiving antenna radiator 10 are directly proportional to the quality factor Q4 of the first receiving antenna radiator 10, while the conductivity ρ4 of the first receiving antenna radiator 10 is inversely proportional to the quality factor Q4. In other words, the larger the relative permeability μ2 of the magnetic core 50, the radius R of the magnetic core 50, and the wire radius r3 of the wire loop of the first receiving antenna radiator 10, the smaller the conductivity ρ4 of the first receiving antenna radiator 10, and the larger the quality factor Q4 of the first receiving antenna radiator 10. This is more conducive to achieving a quality factor Q4 of the first receiving antenna radiator 10 that is greater than or equal to the fourth preset quality factor. Therefore, by making the radius of the magnetic core 50 greater than or equal to the fourth preset radius, this embodiment also helps to make the quality factor Q4 of the designed first receiving antenna radiator 10 larger, so that the quality factor of the first receiving antenna radiator 10 is greater than or equal to the fourth preset quality factor, thereby improving the efficiency of the first receiving antenna radiator 10 in receiving the first antenna signal.

[0096] In one possible implementation, the fourth preset radius can be 0.5 mm. It is understood that the radius of the magnetic core 50 is greater than or equal to 0.5 mm. Optionally, the radius of the magnetic core 50 can be selected from 0.5 mm to 10 mm.

[0097] Furthermore, the conductivity of the first receiving antenna radiator 10 is less than or equal to a fourth preset conductivity, and the first receiving antenna radiator 10 includes one or more turns of a fourth wire loop, the radius of which is greater than or equal to a sixth preset radius. From the formula for the quality factor Q4 of the first receiving antenna radiator 10, it can be seen that regardless of whether the magnetic core 50 is a cube, cuboid, or cylinder, the wire radius r4 of the wire loop of the first receiving antenna radiator 10 is directly proportional to the quality factor Q4, and the conductivity ρ4 of the first receiving antenna radiator 10 is inversely proportional to the quality factor Q4. Therefore, by making the conductivity of the first receiving antenna radiator 10 less than or equal to the fourth preset conductivity and the wire radius of the fourth wire loop greater than or equal to the sixth preset radius, it is also beneficial to make the designed quality factor Q4 of the first receiving antenna radiator 10 larger, thereby facilitating the realization that the quality factor of the first receiving antenna radiator 10 is greater than or equal to the fourth preset quality factor. The first receiving antenna radiator 10 can be made of materials such as copper or silver. When the first receiving antenna radiator 10 is made of copper, its conductivity is approximately 1.673*10. -6Ω / cm. The conductor radius of the conductor loop of the first receiving antenna radiator 10 can be 0.05mm to 1mm.

[0098] Experimental results show that the charging efficiency of the antenna system 100 provided in this application can be increased to 17.8%, while the charging efficiency in related technologies is only about 2%. Furthermore, the NFC communication distance of the antenna system 100 provided in this application can be increased to 34mm-40mm, while the NFC communication distance in related technologies is approximately 25mm.

[0099] Further, please refer to Figure 10 and Figure 11 This application also provides an electronic component 1000. The electronic component 1000 includes an electronic device 200, a device accessory 300, and the antenna system 100 described in any of the above embodiments. The electronic device 200 can be a mobile phone, tablet, etc. The device accessory 300 can be an electronic pen, earphones, etc. A transmitting antenna radiator 20 is disposed on the electronic device 200, a first receiving antenna radiator 10 is disposed on the device accessory 300, and a relay antenna radiator 30 is disposed on either the electronic device 200 or the device accessory 300.

[0100] The electronic device 200 may include a display screen 21, a mid-frame 22, and a back cover 23. The display screen 21 is used to display images, videos, etc. When classified by bending performance, the display screen 21 can be a flexible display screen 21 or a rigid display screen 21. When classified by light source, the display screen 21 can be an organic light-emitting diode (OLED) display screen 21, a light-emitting diode (LED) display screen 21, a liquid crystal display (LCD), etc. The material of the mid-frame 22 may include metal, alloy, composite material, plastic, glass, etc. The mid-frame 22 may include a rectangular frame, a circular frame, etc. In one possible embodiment, the mid-frame 22 includes a first border, a second border, a third border, and a fourth border connected end-to-end. The display screen 21, the mid-frame 22, and the back cover 23 are connected sequentially to form a receiving space. The connection methods between the display screen 21 and the mid-frame 22, and between the mid-frame 22 and the back cover 23, include, but are not limited to, adhesive bonding.

[0101] In one possible embodiment, the transmitting antenna radiator 20 is disposed within the housing space of the electronic device 200. The relay antenna radiator 30 is disposed within the rear cover 23 of the electronic device 200. The first receiving antenna radiator 10 is disposed within the device accessory 300.

[0102] Understandably, the electronic component 1000 provided in this application can wirelessly charge the device accessory 300 via the electronic device 200, or further enable NFC communication between the electronic device 200 and the NFC device. The NFC device includes a second receiving antenna radiator 40. The NFC device can be a card reader, mobile phone, tablet, tag device, etc.

[0103] In addition, such as Figure 12 As shown, this application also provides another electronic component 2000. The electronic component 2000 includes an electronic device 400, a first device accessory 500, a second device accessory 600, and the antenna system 100 described in any of the above embodiments. The electronic device 400 can be a mobile phone, tablet, etc. The first device accessory 500 can be an electronic pen, earphones, etc. The second device accessory 600 can be a protective case, etc. A transmitting antenna radiator 20 is disposed on the electronic device 400, a first receiving antenna radiator 10 is disposed on the first device accessory 500, and a relay antenna radiator 30 is disposed on the second device accessory 600.

[0104] In one possible embodiment, the transmitting antenna radiator 20 is disposed within the electronic device 400, the relay antenna radiator 30 is disposed on the second device accessory 600, and the first receiving antenna radiator 10 is disposed within the first device accessory 500.

[0105] Understandably, the electronic component 1000 provided in this application enables the electronic device 400 to wirelessly charge the first device accessory 500 via the second device accessory 600, or further enables the electronic device 400 to conduct NFC communication with an NFC device via the second device accessory 600. The NFC device includes a second receiving antenna radiator 40. The NFC device can be a card reader, mobile phone, tablet, tag device, etc.

[0106] The features mentioned above in the specification, claims, and drawings can be combined in any way as long as they are meaningful within the scope of this application. The advantages and features described for antenna system 100 are applied accordingly to electronic components 1000 and 2000.

[0107] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application, and such improvements and refinements are also considered to be within the protection scope of this application.

Claims

1. An antenna system, characterized in that, include: First receiving antenna radiator; Second receiving antenna radiator; A transmitting antenna radiator, used to transmit signals from the first antenna and the second antenna; and A relay antenna radiator includes a first radiating part and a second radiating part electrically connected. The first radiating part is coupled to the transmitting antenna radiator, and the second radiating part is mutually inducted with the first receiving antenna radiator. The relay antenna radiator is used to receive the first antenna signal and forward the first antenna signal to the first receiving antenna radiator, and the relay antenna radiator is also used to receive the second antenna signal and forward the second antenna signal to the second receiving antenna radiator. Wherein, the coupling coefficient between the first radiating element and the transmitting antenna radiator is greater than or equal to a preset coupling coefficient; and / or, the quality factor of the first radiating element is greater than or equal to a first preset quality factor; and / or, the quality factor of the transmitting antenna radiator is greater than or equal to a second preset quality factor, so as to improve the coupling effect between the first radiating element and the transmitting antenna radiator; and / or, The mutual inductance coefficient between the second radiating part and the first receiving antenna radiator is greater than or equal to a preset mutual inductance coefficient; and / or, the quality factor of the second radiating part is greater than or equal to a third preset quality factor; and / or, the quality factor of the first receiving antenna radiator is greater than or equal to a fourth preset quality factor, so as to improve the mutual inductance effect between the second radiating part and the first receiving antenna radiator.

2. The antenna system according to claim 1, characterized in that, The transmitting antenna radiator is planar and ring-shaped, the first radiating part is planar and ring-shaped, the edge of the first radiating part is circular or elliptical, the edge of the transmitting antenna radiator is circular or elliptical, and the radius of the first radiating part is less than or equal to the radius of the transmitting antenna radiator.

3. The antenna system according to claim 2, characterized in that, The radius of the first radiating part is greater than or equal to the first preset radius.

4. The antenna system according to claim 1, characterized in that, The edges of the first radiating part are arranged in a polygonal shape, and the edges of the transmitting antenna radiator are arranged in a polygonal shape. The area of ​​the region enclosed by the edges of the first radiating part is less than or equal to the area of ​​the region enclosed by the edges of the transmitting antenna radiator.

5. The antenna system according to claim 4, characterized in that, The area enclosed by the edge of the first radiating part is greater than or equal to the first preset area.

6. The antenna system according to claim 1, characterized in that, The magnetic permeability of the transmitting antenna radiator is greater than or equal to a first preset magnetic permeability.

7. The antenna system according to claim 1, characterized in that, The first radiating part includes one or more turns of the first wire loop, the length of a single turn of the first wire loop is greater than or equal to a first preset length, the wire radius of the first wire loop is greater than or equal to a second preset radius, and the total length of the first radiating part is less than or equal to the second preset length, and the resistivity of the first radiating part is less than or equal to the first preset resistivity.

8. The antenna system according to claim 1, characterized in that, The transmitting antenna radiator includes one or more turns of a second conductor loop, the length of a single turn of the second conductor loop is greater than or equal to a third preset length, the conductor radius of the second conductor loop is greater than or equal to a third preset radius, and the total length of the transmitting antenna radiator is less than or equal to a fourth preset length, and the resistivity of the transmitting antenna radiator is less than or equal to a second preset resistivity.

9. The antenna system according to claim 1, characterized in that, The relay antenna radiator is a coil antenna radiator, and the first receiving antenna radiator is a coil antenna radiator. The first receiving antenna radiator is in the form of a three-dimensional ring, and the second radiating part is in the form of a three-dimensional ring. The second radiating part and the first receiving antenna radiator are arranged around the same magnetic core. The second radiating part is used to receive the first antenna signal through the first radiating part and forward the first antenna signal to the first receiving antenna radiator.

10. The antenna system according to claim 9, characterized in that, The magnetic permeability of the magnetic core is greater than or equal to a second preset magnetic permeability, the number of coil turns of the second radiating part is greater than or equal to a first preset number of turns, the number of coil turns of the first receiving antenna radiator is greater than or equal to a second preset number of turns, the cross-sectional area of ​​the second radiating part is greater than or equal to a second preset area, and the length of the second radiating part is less than or equal to a fifth preset length.

11. The antenna system according to claim 9, characterized in that, The magnetic core includes a first magnetic core portion and a second magnetic core portion connected together. The second radiating portion is disposed around the first magnetic core portion, and the first radiating portion is disposed around the second magnetic core portion. The cross-sectional area of ​​the first receiving antenna radiator is the same as the cross-sectional area of ​​the second radiating portion.

12. The antenna system according to claim 9, characterized in that, The magnetic core is a cube, the length of the cross-section of the magnetic core is greater than or equal to a sixth preset length, and the width of the cross-section of the magnetic core is greater than or equal to a preset width.

13. The antenna system according to claim 9, characterized in that, The magnetic core is a cylinder, and the radius of the magnetic core is greater than or equal to a fourth preset radius.

14. The antenna system according to claim 12 or 13, characterized in that, The resistivity of the second radiating part is less than or equal to a third preset resistivity, and the second radiating part includes one or more turns of a third conductive loop, wherein the radius of the third conductive loop is greater than or equal to a fifth preset radius.

15. The antenna system according to claim 12 or 13, characterized in that, The resistivity of the first receiving antenna radiator is less than or equal to a fourth preset resistivity, and the first receiving antenna radiator includes one or more turns of a fourth conductor loop, the conductor radius of the fourth conductor loop being greater than or equal to a sixth preset radius.

16. The antenna system according to any one of claims 1 to 13, characterized in that, The first radiating part can be coupled to the second receiving antenna radiator. The first radiating part is used to receive the second antenna signal and forward the second antenna signal to the second receiving antenna radiator. The second antenna signal is different from the first antenna signal.

17. The antenna system according to claim 16, characterized in that, The first antenna signal is a charging signal, and the second antenna signal is an NFC signal.

18. An electronic component, characterized in that, The device includes electronic equipment, device accessories, and an antenna system according to any one of claims 1 to 17, wherein the transmitting antenna radiator is disposed on the electronic equipment, the first receiving antenna radiator is disposed on the device accessories, and the relay antenna radiator is disposed on the electronic equipment or the device accessories.

19. An electronic component, characterized in that, The device includes an electronic device, a first device accessory, a second device accessory, and an antenna system according to any one of claims 1 to 17, wherein the transmitting antenna radiator is disposed on the electronic device, the first receiving antenna radiator is disposed on the first device accessory, and the relay antenna radiator is disposed on the second device accessory.

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