Electronic device

Abstract

The invention provides electronic equipment. The electronic equipment comprises a first radiating body, a second radiating body, a connecting branch knot, a switching assembly and a feed source. The radiator is provided with a first grounding point and a first connection point. The second radiator is provided with a second grounding point and a second connection point. The first connection point and the second connection point are located between the first grounding point and the second grounding point. One end of the connecting branch is electrically connected with the first connecting point, and the other end is electrically connected with the second connecting point. The switching assembly is electrically connected with the connecting branch. The feed source is electrically connected with one of the first radiator and the second radiator. The first radiator and the second radiator are used for at least generating a first resonance point and a second resonance point when the switching assembly is in a first state; when the switching assembly is in the second state, at least a third resonance point and a fourth resonance point are generated. The frequency of the first resonance point and the frequency of the second resonance point are both smaller than the frequency of the third resonance point and smaller than the frequency of the fourth resonance point.

Description

Technical Field

[0001] The present application relates to the field of wireless communications, and in particular to an electronic device. Background Art

[0002] With the continuous development of mobile phones, mobile phones with large screen ratios are becoming more and more popular among users. However, as the screen ratio increases, the space inside the mobile phone that can be used to set up the antenna becomes smaller and smaller, resulting in poor antenna performance and failure to meet usage requirements. How to obtain an antenna with a smaller size and better performance has become the current research direction of mobile phone antennas. Summary of the invention

[0003] The embodiments of the present application provide an electronic device, aiming to provide an electronic device with an antenna device having a small size and good working performance.

[0004] The electronic device provided in the present application includes a first radiator, a second radiator, a connecting branch, a switching component and a feed source. The first radiator and the second radiator are spaced apart. The radiator is provided with a first grounding point and a first connecting point spaced apart. The second radiator is provided with a second grounding point and a second connecting point spaced apart. The first connecting point and the second connecting point are located between the first grounding point and the second grounding point. One end of the connecting branch is electrically connected to the first connecting point. The other end of the connecting branch is electrically connected to the second connecting point. The switching component is electrically connected to the connecting branch. The feed source is electrically connected to one of the first radiator and the second radiator. The switching component includes a first state and a second state. When the switching component is in the first state, the first radiator and the second radiator are used to generate at least a first resonance point and a second resonance point. When the switching component is in the second state, the first radiator and the second radiator are used to generate at least a third resonance point and a fourth resonance point. The frequency of the first resonance point and the frequency of the second resonance point are both less than the frequency of the third resonance point. The frequency of the first resonance point and the frequency of the second resonance point are also both less than the frequency of the fourth resonance point.

[0005] It can be understood that, compared with the two radiators in the antenna device, which are independent of each other and do not contact each other, and the switch is set at the ground end of one of the radiators to control the electrical connection state between one of the radiators and the floor. By changing the electrical connection state between one of the radiators and the floor, the frequency of the antenna device can be adjusted. By switching the switch, the antenna device can generate three resonances. The antenna device in this embodiment is provided with a connecting branch between the first radiator and the second radiator, and a switching component is provided to electrically connect the connecting branch. By controlling the switching component to switch between the first state and the second state, the current on the connecting branch is controlled to switch between the disconnected state and the conductive state, and the electrical connection state between the first radiator and the second radiator is controlled, and the current flow path of the antenna device is changed, thereby adjusting the frequency of the antenna device. Among them, the first connection point and the second connection point can be located between the first grounding point and the second grounding point, that is, the first grounding point and the second grounding point can be set away from each other, and the two can be located on different sides of the connecting branch. In this way, when the switching component is converted from the first state to the second state, the operating frequency of the antenna device in the half-wavelength mode and the operating frequency of the antenna device in the double wavelength mode will both increase. In other words, the first radiator and the second radiator in this embodiment can be electrically connected to the floor regardless of whether the switching component is in the first state or the second state, so that the antenna device can operate in two resonant frequency bands regardless of whether the switching component is in the first state or the second state, that is, the entire antenna device can generate four resonances, and the working performance is better.

[0006] Secondly, compared to some antenna devices in which the two ground ends of the two radiators are arranged close to each other to form an electrical coupling, and the two open ends of the two radiators are arranged close to each other to form a magnetic coupling. The first connection point of the first radiator and the second connection point of the second radiator of the antenna device in this embodiment can be located between the first ground point and the second ground point, and the first ground point of the first radiator and the second ground point of the second radiator can be far away from each other. In this way, the first ground point of the first radiator can be arranged close to the second end of the second radiator (that is, the open end of the second radiator), and electromagnetic coupling can be formed between the two, and the second ground point of the second radiator can be arranged close to the second end of the first radiator (that is, the open end of the first radiator), and electromagnetic coupling can be formed between the two, so that the radiation efficiency of the antenna device can be effectively improved, which is conducive to alleviating the problem of the minimum radiation efficiency of the antenna device.

[0007] In a possible implementation, when the switching component is in the first state, the frequency of the second resonance point is higher than the frequency of the first resonance point. When the switching component is in the second state, the frequency of the fourth resonance point is higher than the frequency of the third resonance point. The ratio between the frequency of the second resonance point and the frequency of the third resonance point is in the range of 1:1 to 1:1.1.

[0008] In this way, the frequencies of the multiple resonance points of the antenna device are different, so that the antenna device can operate in multiple frequency bands, and the performance of the antenna device is better. Secondly, there is a partial frequency overlap between the working frequency band of the antenna device when the switching component is in the first state and the working frequency band of the antenna device when the switching component is in the second state, so that the working frequency band of the antenna device when the switching component is in the first state and the working frequency band of the antenna device when the switching component is in the second state can be continuous, thereby forming a wider working bandwidth. Under the condition of the same volume, the antenna device in this embodiment can form a wider working bandwidth, and the working performance of the antenna device is higher. Under the condition of the same working bandwidth, compared with the antenna device that needs to set up more tuning circuits, the overall structural setting of the antenna device in this embodiment is simpler, which is conducive to the miniaturization of the antenna device, thereby freeing up more space inside the electronic device.

[0009] In a possible implementation, when the switching component is in the first state, the current of the first radiator flows into the floor of the electronic device through the first grounding point. The current of the second radiator flows into the floor of the electronic device through the second grounding point. When the switching component is in the second state, the current of the first radiator flows into the second radiator through the connecting branch. In this way, when the switching component is in the second state, the path of the current flowing from the second radiator through the connecting branch to the first radiator is shorter than the path of the current flowing from the second grounding point of the second radiator through the floor to the first grounding point of the first radiator when the switching component is in the first state, so that the antenna device can operate in different resonant frequency bands when the switching component is in different states, which is beneficial to improving the performance of the antenna device.

[0010] In a possible implementation, when the switching component is in the first state, at the frequency of the first resonance point generated by the first radiator and the second radiator, the current on the first radiator is in the same direction as the current on the second radiator. When the switching component is in the first state, at the frequency of the second resonance point generated by the first radiator and the second radiator, the current on the first radiator is in the opposite direction to the current on the second radiator. When the switching component is in the second state, at the frequency of the third resonance point generated by the first radiator and the second radiator, the current on the first radiator is in the same direction as the current on the second radiator. When the switching component is in the second state, at the frequency of the fourth resonance point generated by the first radiator and the second radiator, the current on the first radiator is in the opposite direction to the current on the second radiator. In this way, when the switching component is in the first state, the antenna device can generate a first resonance point and a second resonance point based on a half-wavelength mode and a one-time wavelength mode, respectively. When the switching component is in the second state, the antenna device can generate a third resonance point and a fourth resonance point based on a half-wavelength mode and a one-time wavelength mode, respectively. In other words, the antenna device of the present application can generate at least four resonance points, that is, it can work in at least four resonance frequency bands, and the working performance of the antenna device is better.

[0011] In a possible implementation, the first radiator includes a first end and a second end. The first grounding point is located at the first end of the first radiator. The second end of the first radiator is an open end. The first connection point is located between the first grounding point and the second end of the first radiator. The second radiator includes a first end and a second end. The second grounding point is located at the first end of the second radiator. The second end of the second radiator is an open end. The second connection point is located between the second grounding point and the second end of the second radiator. The electronic device also satisfies at least one of the following limitations: the distance from the first connection point to the first grounding point is less than the distance from the first connection point to the second end of the first radiator; the distance from the second connection point to the second grounding point is less than the distance from the second connection point to the second end of the second radiator. In this way, the first connection point can be set close to the first grounding point of the first radiator. The second connection point can be set close to the second grounding point of the second radiator, the performance of the antenna device is better, and the antenna device is easier to form broadband coverage.

[0012] In a possible implementation, the distance between the first grounding point and the second end of the second radiator is the first distance. The distance between the first grounding point and the second grounding point is the second distance. The distance between the second grounding point and the second end of the first radiator is the third distance. The electronic device further satisfies at least one of the following limitations: the first distance is less than the second distance; the third distance is less than the second distance.

[0013] It can be understood that, compared with some antenna devices in which the two ground ends of the two radiators are arranged close to each other to form an electrical coupling, and the two open ends of the two radiators are arranged close to each other to form a magnetic coupling. When the first distance of the antenna device in this embodiment is less than the second distance, the first grounding point is closer to the open end of the second radiator (that is, the second end of the second radiator) relative to the second grounding point, so that the first grounding point can better form electromagnetic coupling with the open end of the second radiator; when the third distance is less than the second distance, the second grounding point is closer to the open end of the first radiator (that is, the second end of the first radiator) relative to the first grounding point, so that the second grounding point can better form electromagnetic coupling with the open end of the first radiator. In this way, the first grounding point of the first radiator and the second grounding point of the second radiator can be located on different sides of the connecting branch, and the first grounding point of the first radiator and the second grounding point of the second radiator can be far away from each other. The first grounding point of the first radiator can be set closer to the second end of the second radiator (that is, the open end of the second radiator) relative to the second grounding point of the second radiator, and electromagnetic coupling can be formed between the two. The second grounding point of the second radiator can be set closer to the second end of the first radiator (that is, the open end of the first radiator) relative to the first grounding point of the first radiator, and electromagnetic coupling can be formed between the two, thereby effectively improving the radiation efficiency of the antenna device and helping to alleviate the problem of minimum radiation efficiency of the antenna device.

[0014] In a possible implementation, the distance between the second end of the second radiator and the second end of the first radiator is a fourth distance. The electronic device also satisfies at least one of the following limitations: the first distance is less than the fourth distance; the third distance is less than the fourth distance. In this way, the first radiator and the second radiator can be arranged side by side relatively, and the coupling effect between the first radiator and the second radiator is better, which is conducive to improving the performance of the antenna device.

[0015] In a possible implementation, the connecting branch includes a first section and a second section that are spaced apart. The first section connects the first connection point. The second section connects the second connection point. The switching component is connected in series between the first section and the second section. The ratio of the physical length of the first section to the physical length of the second section is in the range of 0.5 to 2.

[0016] It can be understood that in this embodiment, by setting the ratio of the physical length of the first section to the physical length of the second section in the range of 0.5 to 2, the switching component can be located at the middle position of the connecting branch. In this way, when the antenna device is in the one-wavelength mode, the current will reach the minimum value at the middle position of the connecting branch (that is, the position of the switching component in this embodiment), and the switching of the switching component between the first state and the second state has little effect on the current distribution, and the frequency change of the antenna device in the one-wavelength mode is small, so that there is a partial frequency overlap in the working frequency bands of the two states. When the antenna device is in the half-wavelength mode, the path of the current flowing from the second radiator through the connecting branch to the first radiator is shorter than the path of the current flowing from the second grounding point of the second radiator through the floor to the first grounding point of the first radiator. At this time, the switching of the switching component between the first state and the second state has a greater impact on the current path, and the frequency change of the antenna device in the half-wavelength mode is greater. For example, when the switching component switches from the first state to the second state, the current between the first radiator and the second radiator mainly flows through the connecting branch, the current path becomes shorter, and the frequency of the antenna device increases.

[0017] In other words, when the state of the switching component changes, the antenna device in this embodiment can change the length of the path through which the current flows between the first radiator and the second radiator, so that the frequency change of the antenna device in the half-wavelength mode is large. At the same time, the switching component is located at the middle position of the connecting branch, so that the frequency change of the antenna device in the one-wavelength mode is small. In this way, the working frequency band of the antenna device when the switching component is in the first state and the working frequency band of the antenna device when the switching component is in the second state have partial frequency overlap, so that the working frequency band of the antenna device when the switching component is in the first state and the working frequency band of the antenna device when the switching component is in the second state can be continuous, thereby forming a wider working bandwidth. In this way, under the same volume, the antenna device in this embodiment only needs to set a connecting branch between the first radiator and the second radiator, and set a switching component at the middle position of the connecting branch, so as to form a wider working bandwidth and the working performance of the antenna device is higher. Under the same working bandwidth, compared with the antenna device that needs to set more tuning circuits, the overall structure of the antenna device in this embodiment is simpler, which is conducive to the miniaturization of the antenna device, thereby freeing up more space inside the electronic device.

[0018] In a possible implementation, the projection of the first radiator in the thickness direction of the floor of the electronic device is the first projection. The projection of the second radiator in the thickness direction of the floor is the second projection. At least one of the first projection and the second projection overlaps with the projection of the floor in the thickness direction of the floor. In this way, the first radiator, the second radiator and the floor can be coupled together to generate at least four resonance points, and the working performance of the antenna device is better.

[0019] In a possible implementation, the angle between the length extension direction of the first projection and the length extension direction of the second projection is less than or equal to 45°. In this way, the first radiator and the second radiator can meet certain performance requirements while being more adaptable to the spatial arrangement inside the electronic device, that is, by changing the angle setting between the first radiator and the second radiator, other components inside the electronic device can be avoided, which is conducive to saving the internal space of the electronic device.

[0020] In a possible implementation, the first radiator and the second radiator are arranged in parallel. Thus, by arranging the first radiator and the second radiator in parallel, it is helpful to improve the coupling strength between the first radiator and the second radiator, and it is helpful to improve the performance of the antenna device.

[0021] In a possible implementation, the ratio of the physical length of the first radiator to the physical length of the second radiator is in the range of 0.7 to 1.3. In this way, the coupling effect between the first radiator and the second radiator is better, which is conducive to improving the performance of the antenna device.

[0022] In a possible implementation, the width of the connecting branch is smaller than the width of the first radiator and smaller than the width of the second radiator. In this way, the performance of the antenna device is better.

[0023] In a possible implementation, the switching component includes an antenna switch. The antenna switch is used to switch the switching component between a first state and a second state. The antenna switch includes a connected state and a disconnected state. When the antenna switch is in the connected state, the switching component is in the first state. When the antenna switch is in the disconnected state, the switching component is in the second state. In this way, the antenna switch is arranged in the switching component, and the electrical connection state between the first radiator and the second radiator is controlled by controlling the antenna switch to switch between the connected state and the disconnected state, thereby changing the current path between the first radiator and the second radiator, so that the antenna device can generate at least four resonance points, and the performance of the antenna device is better.

[0024] In a possible implementation, the switching component further includes a tuning element, and the tuning element includes at least one of a capacitor and an inductor. The antenna switch is connected in series with the tuning element. Thus, by setting the tuning element in series with the antenna switch, the frequency of the antenna device can be better adjusted while controlling the electrical connection state between the first radiator and the second radiator, thereby improving the working performance of the antenna device.

[0025] In a possible implementation, the first radiator and the second radiator are located on the same side of the floor of the electronic device. The first radiator and the second radiator are arranged on a bracket. In this way, the first radiator and the second radiator can be arranged on the same bracket, and the first radiator and the second radiator can be located on the same plane, so that the coupling effect between the first radiator and the second radiator is better, which is conducive to improving the performance of the antenna device.

[0026] In a possible implementation, the electronic device further includes a frame. The frame is provided with a first slit. The frame is grounded at a first position. The first radiator includes a conductive portion of the frame located between the first position and the first slit. The first end of the first radiator is the first position of the frame. The second end of the first radiator is the end of the frame where the first slit is formed. The second radiator overlaps with the floor of the electronic device in a thickness direction of the floor. In this way, the first radiator can be arranged using the space of the frame of the electronic device, thereby saving more internal space of the electronic device. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the implementation methods of the present application or the background technology, the drawings required for use in the implementation methods of the present application or the background technology will be described below.

[0028] Figure 1ais a schematic diagram of current distribution of the dipole antenna provided in this embodiment in a half-wavelength mode;

[0029] Figure 1b yes Figure 1a The current distribution diagram of the dipole antenna in one-wavelength mode is shown;

[0030] Figure 1c yes Figure 1a The dipole antenna shown is a schematic diagram of current distribution in half-wavelength mode after being bent and a floor is added;

[0031] Figure 1d yes Figure 1a The dipole antenna shown is a schematic diagram of current distribution in a one-wavelength mode after being bent and a floor is added;

[0032] Figure 2a is a schematic diagram of the structure of an electronic device provided by the present application in some embodiments;

[0033] Figure 2b yes Figure 2a A partially exploded schematic diagram of an electronic device in some embodiments is shown;

[0034] Figure 3 It is a schematic diagram of the structure of an antenna device and a floor in an electronic device;

[0035] Figure 4 yes Figure 3 A schematic diagram of an S11 curve of the antenna device shown;

[0036] Figure 5a yes Figure 2a A schematic diagram of the structure of an antenna device and a floor of an electronic device in one embodiment;

[0037] Figure 5b yes Figure 5a A schematic diagram of the structure shown in another perspective;

[0038] Figure 6a yes Figure 5a A schematic diagram of the structure shown in FIG. 1 from another perspective;

[0039] Figure 6b yes Figure 6a The structure shown is a schematic diagram of the structure in other embodiments;

[0040] Figure 7a yes Figure 5a A schematic diagram of the current direction of the antenna device in the half-wavelength mode when the switching component is in the first state;

[0041] Figure 7b yes Figure 5aA schematic diagram of the current direction of the floor in the half-wavelength mode when the switching component is in the first state;

[0042] Figure 8a yes Figure 5a A schematic diagram of the current direction of the antenna device in a one-wavelength mode when the switching component is in a first state;

[0043] Figure 8b yes Figure 5a A schematic diagram of the current direction of the floor in the one-wavelength mode when the switching component is in the first state;

[0044] Figure 9a yes Figure 5a A schematic diagram of the current direction of the antenna device in the half-wavelength mode when the switching component is in the second state;

[0045] Figure 9b yes Figure 5a A schematic diagram of the current direction of the floor in the half-wavelength mode when the switching component is in the second state;

[0046] Fig.10a yes Figure 5a A schematic diagram of the current direction of the antenna device in the one-wavelength mode when the switching component is in the second state;

[0047] Fig.10b yes Figure 5a A schematic diagram of the current direction of the floor in the one-wavelength mode when the switching component is in the second state;

[0048] Fig.11 yes Figure 5a The S11 curve schematic diagram of the antenna device shown when the switching component is in the first state and the second state respectively;

[0049] Fig.12 yes Figure 6a The schematic diagram of the structure of the antenna device and the floor in other embodiments shown;

[0050] Fig.13 yes Figure 6a The schematic diagram of a part of the structure of the antenna device in some embodiments shown;

[0051] Fig.14 yes Figure 6a A schematic diagram of the structure of the antenna device and the floor in another embodiment;

[0052] Fig.15 yes Figure 6a A schematic structural diagram of an antenna device and a floor in yet another embodiment;

[0053] Fig.16 yes Figure 6a The schematic diagram of the structure of the antenna device shown in other embodiments;

[0054] Fig.17 yes Figure 6a The schematic diagram of the structure of the antenna device shown in other embodiments;

[0055] Fig.18 yes Fig.17 The schematic diagram of the structure of the antenna device shown in other embodiments;

[0056] Fig.19 yes Figure 6a The schematic diagram of the structure of the antenna device shown in other embodiments;

[0057] Fig. 20 yes Figure 2a A schematic diagram of a structure of a partial structure of an electronic device in some embodiments;

[0058] Fig.21 yes Fig. 20 A schematic diagram of the structure shown in another perspective;

[0059] Fig. 22 yes Fig. 20 The structure shown is a schematic diagram of a cross-section structure in some embodiments cut along line AA;

[0060] Fig.23 yes Fig. 22 The structure shown is a schematic diagram of the structure in other embodiments;

[0061] Fig.24 yes Fig. 22 The structure shown is a schematic diagram of the structure in some other embodiments. DETAILED DESCRIPTION

[0062] The embodiments of the present application are described below in conjunction with the accompanying drawings in the embodiments of the present application.

[0063] In the description of the implementation mode of the present application, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Among them, "fixed connection" means that the two are connected to each other and the relative position relationship after the connection remains unchanged. The directional terms mentioned in the implementation mode of the present application, such as "upper", "lower", "inner", "outer", etc., are only referenced to the directions of the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the implementation mode of the present application, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the implementation mode of the present application. "Multiple" means at least two.

[0064] In the embodiments of the present application, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", and "third" may explicitly or implicitly include one or more of the features.

[0065] In the implementation manner of the present application, "and / or" is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0066] References to "one embodiment" or "some embodiments" etc. described in this specification mean that a particular feature, structure or characteristic described in conjunction with the embodiment is included in one or more embodiments of the present application. Thus, the phrases "in one embodiment", "in some embodiments", "in some other embodiments", "in another embodiment", etc. appearing in different places in this specification do not necessarily all refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "include", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0067] Connected / connected: can refer to a mechanical connection relationship or a physical connection relationship, that is, A and B are connected or A and B are connected, which can mean that there is a fastening component (such as screws, bolts, rivets, etc.) between A and B, or A and B are in contact with each other and A and B are difficult to separate.

[0068] Coupling: can be understood as direct coupling and / or indirect coupling, and "coupled connection" can be understood as direct coupling connection and / or indirect coupling connection. Direct coupling can also be called "electrical connection", which is understood as the physical contact and electrical conduction between components; it can also be understood as the connection between different components in the circuit structure through physical lines such as printed circuit board (PCB) copper foil or wires that can transmit electrical signals; "indirect coupling" can be understood as two conductors being electrically conductive in an airless / non-contact manner. In one embodiment, indirect coupling can also be called capacitive coupling, for example, signal transmission is achieved by coupling between the gaps between two conductive parts to form an equivalent capacitor.

[0069] Lumped component / device: refers to the collective name for all components when the size of the component is much smaller than the wavelength relative to the circuit operating frequency. For the signal, regardless of any time, the component characteristics always remain fixed and are independent of frequency.

[0070] Distributed components / devices: Unlike lumped components, if the size of the component is similar to or larger than the wavelength relative to the circuit operating frequency, then when the signal passes through the component, the characteristics of each point of the component itself will vary due to changes in the signal. At this time, the component as a whole cannot be regarded as a single entity with fixed characteristics, but should be called a distributed component.

[0071] Capacitance: It can be understood as lumped capacitance and / or distributed capacitance. Lumped capacitance refers to capacitive components, such as capacitors; distributed capacitance (or distributed capacitance) refers to the equivalent capacitance formed by two conductive parts separated by a certain gap.

[0072] Inductance: It can be understood as lumped inductance and / or distributed inductance. Lumped inductance refers to inductive components, such as inductors; distributed inductance (or distributed inductance) refers to the equivalent inductance formed by a certain length of conductive parts, such as the equivalent inductance formed by the conductor due to curling or rotation.

[0073] Radiator, or antenna branch: is a device in the antenna used to receive / send electromagnetic wave radiation. In some cases, the narrow sense of "antenna" is to be understood as a radiator, which converts the waveguide energy from the transmitter into radio waves, or converts radio waves into waveguide energy, which is used to radiate and receive radio waves. The modulated high-frequency current energy (or waveguide energy) generated by the transmitter is transmitted to the transmitting radiator via the feeder line, and is converted into a certain polarized electromagnetic wave energy by the radiator and radiated in the desired direction. The receiving radiator converts a certain polarized electromagnetic wave energy from a specific direction in space into modulated high-frequency current energy, which is transmitted to the receiver input via the feeder line.

[0074] The radiator (or antenna branch) may include a conductor with a specific shape and size, such as a linear or sheet shape, etc. The present application does not limit the specific shape. In one embodiment, the linear radiator may be referred to as a linear antenna. In one embodiment, the linear radiator may be implemented by a conductive frame, and may also be referred to as a frame antenna. In one embodiment, the linear radiator may be implemented by a bracket conductor, and may also be referred to as a bracket antenna. In one embodiment, the linear radiator, or the radiator of the linear antenna, has a wire diameter (e.g., including thickness and width) much smaller than the wavelength (e.g., the dielectric wavelength) (e.g., less than 1 / 16 of the wavelength), and the length may be comparable to the wavelength (e.g., the dielectric wavelength) (e.g., the length is about 1 / 8 of the wavelength, or 1 / 8 to 1 / 4, or 1 / 4 to 1 / 2, or longer). The main forms of linear antennas include dipole antennas, half-wave dipole antennas, monopole antennas, loop antennas, and inverted F antennas (also known as IFA, Inverted F Antenna). For example, for a dipole antenna, each dipole antenna generally includes two radiating branches, and each branch is fed by a feeding unit from the feeding end of the radiating branch. For example, an inverted-F antenna (IFA) can be regarded as a monopole antenna with a ground path added. The IFA antenna has a feeding point and a grounding point, and is called an inverted F antenna because its side view is an inverted F shape. In one embodiment, the sheet radiator may include a microstrip antenna, or a patch antenna, such as a planar inverted F antenna (also known as PIFA, Planar Inverted F Antenna). In one embodiment, the sheet radiator may be implemented by a planar conductor (such as a conductive sheet or a conductive coating, etc.). In one embodiment, the sheet radiator may include a conductive sheet, such as a copper sheet, etc. In one embodiment, the sheet radiator may include a conductive coating, such as a silver paste, etc. The shape of the sheet radiator includes a circle, a rectangle, a ring, etc., and the present application does not limit the specific shape. The structure of the microstrip antenna is generally composed of a dielectric substrate, a radiator and a floor, wherein the dielectric substrate is arranged between the radiator and the floor.

[0075] The radiator (or antenna branch) may also include a slot or a slit formed on the conductor, for example, a closed or semi-closed slot or slit formed on the grounded conductor surface. In one embodiment, a slotted or slit radiator may be referred to as a slot antenna or a slot antenna. In one embodiment, the radial dimension (for example, including the width) of the slot or slit of the slot antenna / slot antenna is much smaller than the wavelength (for example, the dielectric wavelength) (for example, less than 1 / 16 of the wavelength), and the length dimension may be comparable to the wavelength (for example, the dielectric wavelength) (for example, the length is about 1 / 8 of the wavelength, or 1 / 8 to 1 / 4, or 1 / 4 to 1 / 2, or longer). In one embodiment, a radiator with a closed slot or slit may be referred to as a closed slot antenna. In one embodiment, a radiator with a semi-closed slot or slit (for example, an opening is added to a closed slot or slit) may be referred to as an open slot antenna. In some embodiments, the slot shape is a long strip. In some embodiments, the length of the slot is about half a wavelength (for example, the dielectric wavelength). In some embodiments, the length of the slot is about an integer multiple of the wavelength (for example, one times the dielectric wavelength). In some embodiments, the slot can be fed by a transmission line connected across one or both sides thereof, thereby exciting a radio frequency electromagnetic field on the slot and radiating electromagnetic waves into space. In one embodiment, the radiator of the slot antenna or slot antenna can be realized by a conductive frame with both ends grounded, which can also be called a frame antenna; in this embodiment, it can be regarded as that the slot antenna or slot antenna includes a linear radiator, which is spaced apart from the floor and grounded at both ends of the radiator, thereby forming a closed or semi-closed slot or slot. In one embodiment, the radiator of the slot antenna or slot antenna can be realized by a bracket conductor with both ends grounded, which can also be called a bracket antenna.

[0076] The feed circuit is a combination of all circuits used for receiving and transmitting radio frequency signals. The feed circuit can be called a feed source. The feed circuit may include a transceiver and an RF front end circuit. In some cases, the "feed circuit" is understood in a narrow sense as a radio frequency chip (RFIC, Radio Frequency Integrated Circuit), and RFIC can be considered to include an RF front end chip and a transceiver. The feed circuit has the function of converting radio waves (e.g., radio frequency signals) and electrical signals (e.g., digital signals). Generally, it is considered to be part of the radio frequency.

[0077] In some embodiments, the electronic device may further include a test socket (or referred to as a radio frequency socket or a radio frequency test socket). The test socket may be used to insert a coaxial cable to test the characteristics of the radio frequency front-end circuit or the radiator of the antenna through the cable. The radio frequency front-end circuit may be considered as a circuit portion coupled between the test socket and the transceiver.

[0078] In some embodiments, the RF front-end circuit may be integrated into a RF front-end chip in the electronic device, or the RF front-end circuit and the transceiver may be integrated into a RF chip in the electronic device.

[0079] The grounding structure / feeding structure may include a connector, such as a metal spring, and the radiator is coupled to the floor through the grounding structure / feeding structure is coupled to the feeding circuit. In some embodiments, the feeding structure may include a transmission line / feeding line, and the grounding structure may include a grounding line.

[0080] The feed line, also called the transmission line, refers to the connection line between the antenna's transceiver and the radiator. The transmission line can directly transmit current waves or electromagnetic waves depending on the frequency and form. The connection point on the radiator where the transmission line is connected is usually called the feeding point. Transmission lines include wire transmission lines, coaxial transmission lines, waveguides, or microstrip lines. The transmission line can include a bracket antenna body or a glass antenna body depending on the implementation form. The transmission line can be implemented by LCP (Liquid Crystal Polymer), FPC (Flexible Printed Circuit), or PCB (Printed Circuit Board) depending on the carrier.

[0081] Ground / floor: can refer to at least a part of any grounding layer, grounding plate, or grounding metal layer in an electronic device (such as a mobile phone), or at least a part of any combination of any of the above grounding layers, grounding plates, or grounding components, etc., and "ground / floor" can be used for grounding components in electronic devices. In one embodiment, "ground / floor" can include any one or more of the following: the grounding layer of the circuit board of the electronic device, the grounding plate formed by the middle frame of the electronic device, the grounding metal layer formed by the metal film under the screen, the conductive grounding layer of the battery, and the conductive parts or metal parts electrically connected to the above grounding layer / grounding plate / metal layer. In one embodiment, the circuit board can be a printed circuit board (PCB), such as an 8-layer, 10-layer or 12-14-layer board with 8, 10, 12, 13 or 14 layers of conductive materials, or an element separated and electrically insulated by a dielectric layer or insulating layer such as glass fiber, polymer, etc. In one embodiment, the circuit board includes a dielectric substrate, a grounding layer and a wiring layer, and the wiring layer and the grounding layer are electrically connected through vias. In one embodiment, components such as display 120, touch screen, input button, transmitter, processor, memory, battery 140, charging circuit, system on chip (SoC) structure, etc. can be mounted on or connected to the circuit board; or electrically connected to the wiring layer and / or ground layer in the circuit board. For example, the RF source is set in the wiring layer.

[0082] Any of the above-mentioned grounding layers, grounding plates, or grounding metal layers are made of conductive materials. In one embodiment, the conductive material can be any of the following materials: copper, aluminum, stainless steel, brass and their alloys, copper foil on an insulating substrate, aluminum foil on an insulating substrate, gold foil on an insulating substrate, silver-plated copper, silver-plated copper foil on an insulating substrate, silver foil and tin-plated copper on an insulating substrate, cloth impregnated with graphite powder, graphite-coated substrates, copper-plated substrates, brass-plated substrates, and aluminum-plated substrates. It will be appreciated by those skilled in the art that the grounding layer / grounding plate / grounding metal layer can also be made of other conductive materials.

[0083] Grounding: refers to coupling with the above-mentioned ground / floor through a grounding structure and / or a grounding circuit. In one embodiment, grounding can be achieved through physical grounding, such as physical grounding (or physical ground) at a specific position on the frame through some structural members of the middle frame. In one embodiment, grounding can be achieved through device grounding, such as grounding through devices such as capacitors / inductors / resistors connected in series or in parallel (or device ground).

[0084] Resonant frequency: The resonant frequency is also called the resonance frequency. The resonant frequency can have a frequency range, that is, the frequency range in which resonance occurs. The resonant frequency can be a frequency range in which the return loss characteristic is less than -6dB. The strongest point of resonance can be called the resonance point, and the frequency corresponding to the resonance point is the center frequency point frequency. The return loss characteristic of the center frequency can be less than -20dB. It should be understood that, unless otherwise specified, the antenna / radiator mentioned in this application produces a "first / second... resonance", where the first resonance should be the fundamental mode resonance generated by the antenna / radiator, or the lowest frequency resonance generated by the antenna / radiator. It should be understood that the antenna / radiator can generate one or more antenna modes according to the specific design, and each antenna mode can correspond to a fundamental mode resonance.

[0085] Resonant frequency band: The range of the resonant frequency is the resonant frequency band. The return loss characteristic of any frequency point in the resonant frequency band can be less than -6dB or -5dB.

[0086] Communication frequency band / working frequency band: Regardless of the type of antenna, it always works within a certain frequency range (band width). For example, an antenna that supports the B40 frequency band has a working frequency band that includes frequencies in the range of 2300MHz to 2400MHz, or in other words, the working frequency band of the antenna includes the B40 frequency band. The frequency range that meets the index requirements can be regarded as the working frequency band of the antenna. The width of the working frequency band is called the working bandwidth. The working bandwidth of an omnidirectional antenna may reach 3-5% of the center frequency. The working bandwidth of a directional antenna may reach 5-10% of the center frequency. The bandwidth can be considered as a frequency range on both sides of the center frequency (for example, the resonant frequency of a dipole), where the antenna characteristics are within the acceptable value range of the center frequency.

[0087] The resonant frequency band and the operating frequency band may be the same, or may partially overlap. In one embodiment, one or more resonant frequency bands of the antenna may cover one or more operating frequency bands of the antenna.

[0088] End / point: The "end / point" in the first end / second end / feeding end / grounding end / feeding point / grounding point / connection point of the antenna radiator cannot be narrowly understood as an end point or end portion that is physically disconnected from other radiators, but can also be considered as a point or a section on a continuous radiator. In one embodiment, the "end / point" may include a connection / coupling area on the antenna radiator that is coupled to other conductive structures. For example, the feed end / feeding point may be a coupling area on the antenna radiator that is coupled to the feed structure (for example, an area facing a portion of the feed structure). For another example, the ground end / grounding point may be a connection / coupling area on the antenna radiator that is coupled to the ground structure.

[0089] Open end, closed end: In some embodiments, the open end and the closed end are, for example, relative to whether they are grounded. The closed end is grounded, and the open end is not grounded. In some embodiments, the open end and the closed end are, for example, relative to other conductors. The closed end is electrically connected to other conductors, and the open end is not electrically connected to other conductors. In one embodiment, the open end can also be referred to as a suspended end, a free end, an open end, or an open-circuit end. In one embodiment, the closed end can also be referred to as a grounded end or a short-circuit end. It should be understood that in some embodiments, other conductors can be coupled and connected through the open end to transfer coupling energy (which can be understood as transferring current).

[0090] In some embodiments, the "closed end" can also be understood from the perspective of current distribution. The closed end or the grounded end, etc., can be understood as a point with larger current on the radiator, or as a point with smaller electric field on the radiator. In one embodiment, the current distribution characteristics of larger current / small electric field can be maintained by coupling electronic devices (for example, capacitors, inductors, etc.) through the closed end. In one embodiment, the current distribution characteristics of larger current / small electric field can be maintained by opening a gap at or near the closed end (for example, a gap filled with insulating material).

[0091] In some embodiments, the "open end" can also be understood from the perspective of current distribution. The open end or suspended end, etc., can be understood as a point with smaller current on the radiator, or as a point with larger electric field on the radiator. In one embodiment, coupling electronic devices (for example, capacitors, inductors, etc.) through the open end can maintain the current distribution characteristics of the smaller current point / larger electric field point.

[0092] It should be understood that coupling the radiator end at a gap (from the perspective of the structure of the radiator, it is similar to a radiator at an opening of an open end or a suspended end) with electronic devices (for example, capacitors, inductors, etc.) can make the radiator end a point with larger current / smaller electric field. In this case, it should be understood that the radiator end at the gap is actually a closed end or a grounded end, etc.

[0093] The following exemplary embodiments provide a detailed description of the half wavelength mode (HWM) and the one wavelength mode (OWM). It should be understood that the following example is only one of the antenna topology structures corresponding to the half wavelength mode, and one of the antenna topology structures corresponding to the one wavelength mode. These structures are not used to limit the antenna structure of the half wavelength mode or the one wavelength mode.

[0094] Figure 1a Schematic diagram of current distribution of the dipole antenna 101 provided in this embodiment in the half-wavelength mode. Figure 1b yes Figure 1a The diagram shows a current distribution diagram of the dipole antenna 101 in the one-wavelength mode.

[0095] like Figure 1a As shown, the dipole antenna 101 with the first open end and the second open end has a half-wavelength mode. The characteristic of this mode is that the current has the same direction on the dipole antenna 101, the current amplitude is the largest in the middle, and the current amplitude is the smallest at the two ends.

[0096] like Figure 1b As shown, the dipole antenna 101 having the first open end and the second open end has a one-wavelength mode. The characteristic of this mode is that the directions of the currents on the dipole antenna 101 are opposite, the current amplitude is the smallest at the two ends and the center point of the dipole antenna 101, and the current amplitude is the largest at the midpoint between the ends and the center point of the dipole antenna 101.

[0097] Figure 1c yes Figure 1a The dipole antenna 101 is shown as a schematic diagram of current distribution in a half-wavelength mode after being bent and a ground plane 102 is added. Figure 1d yes Figure 1a The dipole antenna 101 is shown as a schematic diagram of current distribution in a one-wavelength mode after being bent and a ground plane 102 is added.

[0098] like Figure 1c and Figure 1dAs shown, both ends of the dipole antenna 101 can be bent inward, and the first open end and the second open end are spaced apart. The dipole antenna 101 can be electrically connected to the floor 102. The floor 102 can be a PCB, a middle frame or other metal layer of an electronic device. At this time, the dipole antenna can be composed of two radiators 103 and a part of the floor 102. At the same time, the half-wavelength mode and the double wavelength mode still exist. The current generated by the dipole antenna in the half-wavelength mode is as follows: Figure 1c As shown, the current is distributed in the same direction around the middle slot 104. The current generated by the dipole antenna in the one-wavelength mode is as follows Figure 1d As shown, the current is distributed in reverse around the gap 104 in the middle, that is, the floor 102 plays a role of carrying the mode current between the two radiators 103 between the two bent radiators 103 ends (that is, the connection point with the floor 102). It should be understood that the present application does not limit the width of the gap 104 between the first open end and the second open end. Since the floor 102 plays a role of carrying the mode current between the two radiators 103 between the two radiators 103, even if the width of the gap 104 between the first open end and the second open end is very wide, for example, the width of the gap 104 is greater than the length of the radiator 103, it still does not affect Figure 1c and Figure 1d It should be understood that as long as the current distribution roughly satisfies Figure 1c and Figure 1d The current distribution shown in the figure indicates that the antenna device corresponds to Figure 1c The half-wavelength mode HWM and Figure 1d The one-wavelength mode OWM is shown.

[0099] It is to be understood that the specific implementations described herein are only used to explain the relevant invention, rather than to limit the invention. It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings.

[0100] Figure 2a It is a schematic diagram of the structure of the electronic device 1000 provided in the present application in some implementations.

[0101] like Figure 2aAs shown, the electronic device 1000 provided in the present application can be a mobile phone, a watch, a tablet personal computer, a laptop computer, a personal digital assistant (PDA), a smart home, a personal computer, a notebook computer, a vehicle-mounted device, a wearable device, augmented reality (AR) glasses, AR helmets, virtual reality (VR) glasses, VR helmets, etc. The electronic device 1000 can also be a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, an electronic device 1000 in a 5G network or an electronic device 1000 in a public land mobile network (PLMN) to be evolved in the future, etc., or other forms of devices that can receive and radiate electromagnetic wave signals. Figure 2a The electronic device 1000 of the illustrated embodiment is described by taking a mobile phone as an example.

[0102] Figure 2b yes Figure 2a The electronic device 1000 is shown as a partially exploded schematic diagram in some embodiments.

[0103] like Figure 2a and Figure 2b As shown, the electronic device 1000 may include a screen 200 and a housing 300. It is understood that Figure 2a and Figure 2b Only some components of the electronic device 1000 are schematically shown, and the actual shapes, sizes and structures of these components are not limited to the following. Figure 2a and Figure 2b In other embodiments, when the electronic device 1000 is a device of other forms, the electronic device 1000 may not include the screen 200. The screen 200 may be installed in the housing 300. Figure 2a The diagram shows that the screen 200 and the housing 300 form a substantially rectangular parallelepiped structure. The screen 200 can be used to display images, texts, and the like.

[0104] Exemplarily, the screen 200 may include a cover 201 (cover) and a display screen 202 (display). The cover 201 is stacked on the display screen 202. The cover 201 may be arranged close to the display screen 202, and may be mainly used to protect the display screen 202 from dust. Exemplarily, the protective cover 201 may be a glass cover (cover glass), or may be replaced by a cover 201 of other materials, such as an ultra-thin glass material cover, a PET (Polyethylene terephthalate) material cover, etc. Exemplarily, the display screen 202 may be a liquid crystal display (LCD), a light emitting diode (LED) or an organic light-emitting diode (OLED), etc., and the present application does not impose any restrictions on this.

[0105] Exemplarily, the housing 300 can be used to support the screen 200 and related devices of the electronic device 1000. The housing 300 may include a middle frame 310 (housing) and a rear cover 320 (rear cover). The rear cover 320 and the screen 200 may be installed on the opposite sides of the middle frame 310. The rear cover 320 may be fixedly connected to the middle frame 310 by bonding, welding, etc. At this time, the screen 200, the middle frame 310 and the rear cover 320 may together enclose the internal space of the electronic device 1000. The internal space of the electronic device 1000 may be used to place the internal devices of the electronic device 1000, such as batteries, speakers, microphones or receivers. Among them, the rear cover 320 may be a rear cover 320 made of a metal material, or a rear cover 320 made of a non-conductive material, such as a non-metallic rear cover such as a glass rear cover or a plastic rear cover, or may also be a rear cover 320 made of both a conductive material and a non-conductive material.

[0106] Exemplarily, the middle frame 310 may include a frame 311 and a middle plate 312. The frame 311 may be arranged around the middle plate 312 and connected to the middle plate 312. The frame 311 may be formed of a conductive material such as metal. In this case, the frame 311 is a metal frame. In some embodiments, the middle frame 310 may also include only the frame 311. The back cover 320 may be an integrally formed structure with the frame 311, that is, the back cover 320 and the frame 311 are a whole.

[0107] Exemplarily, the electronic device 1000 may further include a circuit board (not shown). The circuit board may be a printed circuit board (PCB). The circuit board may be located between the middle frame 310 and the back cover 320. The circuit board may carry electronic components, such as radio frequency chips, etc. Among them, the circuit board may adopt a flame retardant material (FR-4) dielectric board, a Rogers dielectric board, or a mixed dielectric board of Rogers and FR-4. It should be noted that FR-4 is a code for a grade of flame retardant material, and Rogers dielectric board is a high-frequency board. In some embodiments, the circuit board may also be located between the screen 200 and the middle frame 310. This application does not limit the specific position of the circuit board.

[0108] In some embodiments, a metal layer may be further provided on the circuit board. The metal layer may be used for grounding electronic components carried on the circuit board, and may also be used for grounding other components in the electronic device 1000 (e.g., a bracket antenna, a frame antenna, etc.). In this case, the metal layer may be referred to as a floor, or a grounding plate, or a grounding layer. Exemplarily, the edge of the circuit board may be regarded as the edge of its floor.

[0109] In some embodiments, the conductive parts in the middle frame 310 and / or the back cover 320 may also serve as the reference ground of the electronic device 1000. Devices such as circuit boards in the electronic device 1000 may be grounded by being electrically connected to the middle frame 310 and / or the back cover 320. In other embodiments, the electronic device 1000 may also have other ground planes, which will not be described in detail herein.

[0110] In this embodiment, the electronic device 1000 may further include an antenna device. The electronic device 1000 may communicate with a network or other devices through the antenna device using one or more of the following communication technologies. The communication technologies include Bluetooth (BT) communication technology, global positioning system (GPS) communication technology, wireless fidelity (Wi-Fi) communication technology, global system for mobile communications (GSM) communication technology, wideband code division multiple access (WCDMA) communication technology, long term evolution (LTE) communication technology, 5G communication technology, SUB-6G communication technology and other future communication technologies.

[0111] Figure 3It is a schematic diagram of the structure of an antenna device 500 and a floor 600 in an electronic device. Figure 4 yes Figure 3 FIG. 5 is a schematic diagram of an S11 curve of the antenna device 500 .

[0112] like Figure 3 As shown, the antenna device 500 of the electronic device may include a first radiator 501, a second radiator 502, a feed source 503 and a switch 504. The feed source 503 may be electrically connected to one of the radiators, such as the first radiator 501. At this time, the second radiator 502 may generate related resonance by coupling the energy of the first radiator 501. The first radiator 501 and the second radiator 502 may both be electrically connected to the floor 600. The first radiator 501 may be directly electrically connected to the floor 600. The second radiator 502 may be electrically connected to the floor 600 via a switch 504. In this way, the antenna device 500 may switch between the second state and the first state by controlling the switch 504 to switch between the second radiator 502 and the floor 600 between connection and disconnection, thereby adjusting the frequency of the antenna device 500.

[0113] like Figure 3 and Figure 4 As shown, when the switch 504 is in the second state (for example, switch on as shown in the figure), the two radiators (i.e., the first radiator 501 and the second radiator 502) are both electrically connected to the floor 600. At this time, the antenna device 500 can be based on the half-wavelength mode HWM and the one-time wavelength mode OWM in the target frequency range (for example, Figure 4 ) and simultaneously generates two resonances corresponding to HWM and OWM. In the half-wavelength mode, the currents on the two radiators (i.e., the first radiator 501 and the second radiator 502 in this embodiment) are in the same direction. In the one-time wavelength mode, the currents on the two radiators are in opposite directions. The floor 600 carries part of the mode current of the antenna device 500, i.e., the floor 600 plays a role in carrying the mode current between the two radiators between the ends of the two radiators (the connection points with the floor 600). The antenna device 500 can operate in the frequency bands corresponding to the two resonances. When the switch 504 is in the first state (e.g., switch off as shown in the figure), only the first radiator 501 is electrically connected to the floor. At this time, the antenna device 500 generates a resonance in the target frequency range. The antenna device 500 can operate in the frequency band corresponding to the resonance. It can be understood that the antenna device 500 in the electronic device can achieve broadband coverage in the target frequency range (e.g., in the range of 2.5 GHz-6 GHz) by switching the state of the switch.

[0114] The embodiment of the present application also provides an antenna device, which may include multiple grounded radiators. At the same time, a switching component is provided between two adjacent radiators to switch the electrical connection state between the two adjacent radiators, thereby adjusting the frequency of the antenna device. Wherein, regardless of whether the switching component is in the second state or the first state, the multiple radiators can be grounded, so that the antenna device can generate two resonances based on the half-wavelength mode and the one-time wavelength mode regardless of whether the switching component is in the second state or the first state. In one embodiment, the working frequency band of the antenna device when the switching component is in the first state and the working frequency band of the antenna device when the switching component is in the second state are continuous, so that a wider working bandwidth can be obtained.

[0115] The antenna device of the present application will be described in detail below with reference to the relevant drawings.

[0116] Figure 5a yes Figure 2a The structure diagram of the antenna device 100 and the floor 400 of the electronic device 1000 in one embodiment is shown. Figure 5b yes Figure 5a A schematic diagram of the structure shown in another perspective. Figure 6a yes Figure 5a The structure shown is a schematic diagram of the structure at another viewing angle.

[0117] like Figures 5a to 6a As shown, the antenna device 100 may include a first radiator 10, a second radiator 20, a connecting branch 30, a switching component 40, and a feed source 50. The first radiator 10 and the second radiator 20 may both be metal conductors. The first radiator 10 and the second radiator 20 may be spaced apart. The connecting branch 30 may be connected between the first radiator 10 and the second radiator 20. In this embodiment, the floor 400 may be a circuit board in the electronic device 1000. The antenna device 100 and the floor 400 may both be located between the back cover 320 and the middle frame 310 of the electronic device 1000 (see Figure 2b ).

[0118] Exemplarily, the first radiator 10 may include a first end 11 and a second end 12. The first end 11 of the first radiator 10 may be a first grounding point 10a provided on the first radiator 10, or a portion of the first radiator 10 electrically connected to the floor 400. The first radiator 10 may be electrically connected to the floor 400 at the first grounding point 10a, for example, the first radiator 10 may be electrically connected to the floor 400 at the first grounding point 10a through a metal grounding member. At this time, the first grounding point 10a may be regarded as the center of a portion of the surface where the first radiator 10 and the metal grounding member contact each other. The second end 12 of the first radiator 10 is not grounded. The first end 11 of the first radiator 10 may be a grounded end, and the second end 12 of the first radiator 10 may be an open end. The current of the first radiator 10 may flow into the floor 400 through the first grounding point 10a. The second end 12 of the first radiator 10 may be suspended relative to the floor 400.

[0119] Exemplarily, the second radiator 20 may include a first end 21 and a second end 22. The first end 21 of the second radiator 20 may be a portion of the second radiator 20 where the second grounding point 20a is set, or a portion of the second radiator 20 electrically connected to the floor 400. The second radiator 20 may be electrically connected to the floor 400 at the second grounding point 20a, for example, the second radiator 20 may be electrically connected to the floor 400 at the second grounding point 20a through a metal grounding member. At this time, the second grounding point 20a may be regarded as the center of a portion of the surface where the second radiator 20 and the metal grounding member contact each other. The second end 22 of the second radiator 20 is not grounded. The first end 21 of the second radiator 20 may be a grounded end, and the second end 22 of the second radiator 20 may be an open end. The current of the second radiator 20 may flow into the floor 400 through the second grounding point 20a. The second end 22 of the second radiator 20 may be suspended relative to the floor 400. It should be noted that, in one embodiment, the first end 11 of the first radiator 10 may be a section or a portion of the first radiator 10 from the end point / end face, that is, the distance between all points on the first end 11 of the first radiator 10 and the end point / end face may be less than the first threshold value, and the first end 11 of the first radiator 10 cannot be narrowly understood as a point. For example, the first threshold value may be 10% of the physical length of the first radiator 10. The ends of other components referred to in this application may also be understood as the above concepts. In one embodiment, the first end 11 may not have any end face.

[0120] Exemplarily, the distance between the first grounding point 10a of the first radiator 10 and the open end of the second radiator 20 (that is, the second end 22 of the second radiator 20) is the first distance. The distance between the first grounding point 10a of the first radiator 10 and the second grounding point 20a of the second radiator 20 is the second distance. The first distance may be smaller than the second distance. The distance between the second grounding point 20a of the second radiator 20 and the open end of the first radiator 10 (that is, the second end 12 of the first radiator 10) is the third distance. Among them, the first distance may be smaller than the second distance, and the third distance may be smaller than the second distance. In this way, the first grounding point 10a of the first radiator 10 and the second grounding point 20a of the second radiator 20 may be far away from each other. In one embodiment, the distance between the first grounding point 10a of the first radiator 10 and the open end of the second radiator 20 may be understood as the shortest straight-line distance between the first grounding point 10a of the first radiator 10 and the open end of the second radiator 20, and other "distances" in this application may be adaptively referred to the above definition. In one embodiment, both the first distance and the third distance may be smaller than the second distance. The first grounding point 10a of the first radiator 10 may be arranged closer to the second end 22 of the second radiator 20 (i.e., the open end of the second radiator 20) relative to the second grounding point 20a of the second radiator 20, and electromagnetic coupling may be formed therebetween. The second grounding point 20a of the second radiator 20 may be arranged closer to the second end 12 of the first radiator 10 (i.e., the open end of the first radiator 10) relative to the first grounding point 10a of the first radiator 10, and electromagnetic coupling may be formed therebetween.

[0121] In some embodiments, the distance between the open end of the second radiator 20 and the open end of the first radiator 10 is a fourth distance. The first distance may be smaller than the fourth distance, and the third distance may be smaller than the fourth distance. In this way, the electromagnetic coupling effect between the first grounding point 10a of the first radiator 10 and the second end 22 of the second radiator 20 is better, and the electromagnetic coupling effect between the second grounding point 20a of the second radiator 20 and the second end 12 of the first radiator 10 is better.

[0122] like Figures 5a to 6aAs shown, the connecting branch 30 may be a metal conductor. The connecting branch 30 may be connected between the first radiator 10 and the second radiator 20. The connecting branch 30 may be suspended relative to the floor 400. The width of the connecting branch 30 may be smaller than the width of the first radiator 10 and smaller than the width of the second radiator 20. The connecting branch 30 may be roughly in a "Z" shape, that is, the connecting branch 30 may have two bending parts. In other embodiments, the connecting branch 30 may also be roughly in a straight line, an "S" shape or other shapes, which is not specifically limited in this application. In other embodiments, the connecting branch 30 may be fixed to the floor 400 together with the first radiator 10 and the second radiator 20 through a bracket (not shown). Among them, the bracket may be an insulator for supporting the first radiator 10 and the second radiator 20. For example, the bracket may be a plastic bracket. The first radiator 10 and the second radiator 20 may be arranged (for example, printed / printed) on the upper surface or the lower surface of the bracket. In this embodiment, the connection branch 30 and the first radiator 10 and the second radiator 20 may be an integrally formed pattern or structure. In some other embodiments, the connection branch 30 may also be a transmission line.

[0123] Exemplarily, the connecting branch 30 may include a first connecting end 31 and a second connecting end 32. The first connecting end 31 may be connected between the first grounding point 10a and the second end 12 of the first radiator 10. The second connecting end 32 may be connected between the second grounding point 20a and the second end 22 of the second radiator 20. The connecting point between the connecting branch 30 and the first radiator 10 is the first connecting point 10b. The connecting point between the connecting branch 30 and the second radiator 20 is the second connecting point 20b. The first connecting point 10b may be spaced apart from the first grounding point 10a. The second connecting point 20b may be spaced apart from the second grounding point 20a. At this time, the first connecting point 10b and the second connecting point 20b may both be located between the first grounding point 10a and the second grounding point 20a. In one embodiment, the first connection point 10b and the second connection point 20b may be located between the first grounding point 10a and the second grounding point 20a, or may be located on the line connecting the first grounding point 10a and the second grounding point 20a, or located around the line connecting the first grounding point 10a and the second grounding point 20a. The first grounding point 10a of the first radiator 10 and the second grounding point 20a of the second radiator 20 may be located on different sides of the connecting branch 30, respectively. The first connection point 10b may be regarded as the center of the partial surface of the first radiator 10 and the connecting branch 30 in contact with each other. The second connection point 20b may be regarded as the center of the partial surface of the second radiator 20 and the connecting branch 30 in contact with each other.

[0124] Exemplarily, the distance from the first connection point 10b to the first grounding point 10a may be less than the distance from the first connection point 10b to the second end 12 of the first radiator 10. The distance from the second connection point 20b to the second grounding point 20a may be less than the distance from the second connection point 20b to the second end 22 of the second radiator 20. In other words, the first connection point 10b may be disposed close to the first grounding point 10a of the first radiator 10. The second connection point 20b may be disposed close to the second grounding point 20a of the second radiator 20. In other embodiments, the distance from the first connection point 10b to the first grounding point 10a may also be greater than or equal to the distance from the first connection point 10b to the second end 12 of the first radiator 10. Alternatively, the distance from the second connection point 20b to the second grounding point 20a may also be greater than or equal to the distance from the second connection point 20b to the second end 22 of the second radiator 20. The present application does not limit the specific positional relationship between the first connection point 10b and the first radiator 10, and the specific positional relationship between the second connection point 20b and the second radiator 20.

[0125] like Figure 5a and Figure 6a As shown, the connecting branch 30 can be disconnected at its middle position to form a first section 33 and a second section 34 that are spaced apart. The switching assembly 40 can be located at the middle position of the connecting branch 30 and connected in series between the first section 33 and the second section 34. Among them, the position of the connecting branch 30 that is offset by one sixth of the length of the connecting branch 30 before and after the midpoint can be regarded as the middle position of the connecting branch 30. At this time, the ratio of the physical length of the first section 33 of the connecting branch 30 to the physical length of the second section 34 can be in the range of 0.5 to 2.

[0126] Exemplarily, the first connection end 31 of the connecting branch 30 may be located at an end of the first section 33 away from the switching component 40. The second connection end 32 of the connecting branch 30 may be located at an end of the second section 34 away from the switching component 40. That is, the first section 33 of the connecting branch 30 may be connected to the first radiator 10. The second section 34 of the connecting branch 30 may be connected to the second radiator 20. In this embodiment, the switching component 40 may be located at the midpoint of the connecting branch 30. At this time, the distance from the switching component 40 to the first connection end 31 may be equal to the distance from the switching component 40 to the second connection end 32. That is, the physical length of the first section 33 may be equal to the physical length of the second section 34. It should be understood that when the ratio of the physical length of the first section 33 to the physical length of the second section 34 is in the range of 0.95 to 1.05, the physical length of the first section 33 may be regarded as being equal to the physical length of the second section 34. The subsequent definition of equal physical length may be adaptively referred to the above description.

[0127] Exemplarily, the switching component 40 may include an antenna switch. The switching component 40 may control the electrical connection state between the first section 33 and the second section 34 of the connecting branch 30 through the antenna switch. In one embodiment, the switching component 40 may be used to switch the on state and the off state of the current on the connecting branch 30.

[0128] In one embodiment, the on state and the off state may be two relative states, wherein the current on the connecting branch 30 being in the on state means that, relative to the off state, the current on the first section 33 of the connecting branch 30 may flow more into the second section 34 through the switching component 40, and the current on the second section 34 of the connecting branch 30 may flow more into the first section 33 through the switching component 40. The current on the connecting branch 30 being in the off state means that, relative to the on state, the current on the first section 33 of the connecting branch 30 may flow less into the second section 34 through the switching component 40, and the current on the second section 34 of the connecting branch 30 may flow less into the first section 33 through the switching component 40. In other words, when the connecting branch 30 is in the on state, the current on the connecting branch 30 is denser and / or stronger than when the connecting branch 30 is in the off state, and when the connecting branch 30 is in the on state, the current on the connecting branch 30 is more dispersed and / or weaker than when the connecting branch 30 is in the on state.

[0129] In one embodiment, the on state and the off state may be two relatively independent states, and the current on the connecting branch 30 being in the on state means that the current on the first section 33 of the connecting branch 30 can basically flow into the second section 34 through the switching component 40, and the current on the second section 34 of the connecting branch 30 can basically flow into the first section 33 through the switching component 40. The current on the connecting branch 30 being in the off state means that the current on the first section 33 of the connecting branch 30 can basically not flow into the second section 34 through the switching component 40, and the current on the second section 34 of the connecting branch 30 can basically not flow into the first section 33 through the switching component 40.

[0130] Exemplarily, the switching component 40 may include a first state and a second state. When the switching component 40 is in the first state, the connecting branch 30 is in a disconnected state. In one embodiment, in the connecting branch 30 in the disconnected state, the same-direction current cannot flow from the first connection end 31 of the connecting branch 30 to the second connection end 32 through the switching component 40, or from the second connection end 32 to the first connection end 31 through the switching component 40, that is, the same-direction current cannot flow from the first section 33 of the connecting branch 30 to the second section 34 through the switching component 40, or from the second section 34 to the first section 33 through the switching component 40. At this time, the same-direction current flowing from the first radiator 10 to the second radiator 20 through the connecting branch 30, or from the second radiator 20 to the first radiator 10 through the connecting branch 30 can be basically in a disconnected state at the switching component 40. When the switching component 40 is in the second state, the first section 33 of the connecting branch 30 can be electrically connected to the second section 34 through the switching component 40, and the same direction current can flow from the first connection end 31 of the connecting branch 30 to the second connection end 32 through the switching component 40, or from the second connection end 32 to the first connection end 31 through the switching component 40, that is, the same direction current can flow from the first section 33 of the connecting branch 30 to the second section 34 through the switching component 40, or from the second section 34 to the first section 33 through the switching component 40. The same direction current can flow between the first connection end 31 and the second connection end 32 of the connecting branch 30. At this time, the same direction current flowing from the first radiator 10 to the second radiator 20 through the connecting branch 30, or from the second radiator 20 to the first radiator 10 through the connecting branch 30 can be basically in a connected state at the switching component 40. It should be noted that, in this embodiment, the same direction current on a conductor can refer to the current having no reverse point on the conductor (for example, the connecting branch 30).

[0131] Exemplarily, one of the first radiator 10 and the second radiator 20 may be provided with a feeding point. The feed source 50 may be electrically connected to the antenna device 100 at the feeding point. In this embodiment, the feeding point may be provided at the first radiator 10. The feed source 50 may be electrically connected to the first radiator 10 at the feeding point. In other embodiments, the position of the feeding point may also be flexibly set according to actual design and production requirements, and this application does not specifically limit this.

[0132] like Figures 5a to 6a As shown, the central plane of the floor 400 is defined as the reference plane. The reference plane of the floor 400 can also be understood as the plane where the floor 400 is located. Exemplarily, the first radiator 10 can face the reference plane and be spaced apart from the floor 400. At this time, the first radiator 10 can be arranged with the floor 400 in the thickness direction of the floor 400.

[0133] Exemplarily, the first radiator 10 may be arranged parallel to the reference plane of the floor 400. At this time, the distance between the first radiator 10 and the floor 400 in the arrangement direction of the two, that is, the height of the first radiator 10 relative to the reference plane (hereinafter referred to as the height). The height of the first radiator 10 may be less than or equal to 2 mm. In this embodiment, the height of the first radiator 10 may be 0.5 mm. Exemplarily, the relative position relationship between the second radiator 20 and the floor 400 may refer to the relative position relationship between the first radiator 10 and the floor 400, which will not be repeated here. In some embodiments, the ratio between the height of the first radiator 10 and the height of the second radiator 20 may be in the range of 0.8 to 1.2. In this way, the distance between the first radiator 10 and the second radiator 20 is relatively close, and the coupling effect between the two is better. In other embodiments, the first radiator 10 and the second radiator 20 may be arranged parallel to the reference plane of the floor 400. The first radiator 10 and the second radiator 20 may be arranged at the same height relative to the reference plane. In this way, the distance between the first radiator 10 and the second radiator 20 is relatively close, and the structural settings of the first radiator 10 and the second radiator 20 are relatively symmetrical, so the coupling effect between the two is better. It should be understood that when the ratio between the height of the first radiator 10 and the height of the second radiator 20 is in the range of 0.98 to 1.02, the first radiator 10 and the second radiator 20 can be regarded as being arranged at the same height relative to the reference plane. In some other embodiments, the first radiator 10 and the second radiator 20 can be arranged parallel to the reference plane of the floor 400. The height of the first radiator 10 can also be unequal to the height of the second radiator 20, that is, the first radiator 10 and the second radiator 20 can be arranged offset relative to the reference plane in the thickness direction of the floor 400. For example, the height of the first radiator 10 can be lower than the height of the second radiator 20.

[0134] Exemplarily, the projection of the first radiator 10 on the reference plane of the floor 400 is the first projection. The projection of the second radiator 20 on the reference plane of the floor 400 is the second projection. The first projection of the first radiator 10 and the second projection of the second radiator 20 can be arranged side by side. The side-by-side arrangement means that the length extension direction of the first projection and the length extension direction of the second projection are not colinear. The length extension direction of the first projection refers to the length extension direction of the rectangle enclosed by the outer contour of the first projection and enclosing the first projection itself. For example, when the first radiator 10 itself is partially bent, the first projection of the first radiator 10 can also be partially bent. At this time, the rectangle enclosed by the outer contour of the first projection and enclosing the first projection itself is Figure 6b The length extension direction of the second projection can refer to the definition of the length extension direction of the first projection.

[0135] Exemplarily, there may be an overlapping portion between the first projection and the second projection in the width direction of the first projection. An angle may be formed between the first projection and the second projection. The angle between the length extension direction of the first projection and the length extension direction of the second projection may be less than or equal to 45°. In this embodiment, that is, the angle α (not shown) between the axis T1 of the first projection and the axis T2 of the second projection may be less than or equal to 45°. In this way, the first radiator 10 and the second radiator 20 of the antenna device 100 can be well coupled, and the working performance of the antenna device 100 is better. At the same time, the arrangement between the first radiator 10 and the second radiator 20 can be more compact, which is conducive to reducing the volume of the entire antenna device 100. When the antenna device 100 is applied to the electronic device 1000, the structure of the antenna device 100 is relatively compact, which is conducive to releasing more internal space of the electronic device 1000. In this embodiment, the first projection of the first radiator 10 and the second projection of the second radiator 20 can be arranged side by side and in parallel, that is, the angle α between the first axis T1 of the first projection and the second axis T2 of the second projection is 0°. At the same time, the first projection and the second projection can completely overlap in the width direction of the first projection. In this way, the distance from the first ground point 10a of the first radiator 10 to the second end 22 of the second radiator 20 can be equal to or approximately equal to the distance from the second ground point 20a of the second radiator 20 to the second end 12 of the first radiator 10. The coupling effect between the first radiator 10 and the second radiator 20 is better, the current distribution on the antenna device 100 is more symmetrical, and the performance of the antenna device 100 is better.

[0136] Exemplarily, the projection of at least one of the first radiator 10 and the second radiator 20 on the reference plane of the floor 400 overlaps with the floor 400, that is, at least part of the first projection of the first radiator 10 and / or at least part of the second projection of the second radiator 20 are located on the floor 400. In this embodiment, the first radiator 10 and the second radiator 20 may be located on the same side of the floor 400. The first projection of the first radiator 10 may be located entirely on the floor 400. The second projection of the second radiator 20 may also be located entirely on the floor 400. In other embodiments, at least part of the first projection of the first radiator 10 may be located on the floor 400. The second projection of the second radiator 20 may be located outside the floor 400. In this case, the second radiator 20 may be located on the peripheral side of the floor 400 and disposed facing the peripheral side of the floor 400. The first radiator 10 and the second radiator 20 may be located on different sides of the floor 400. In this way, the relative position setting between the first radiator 10 and the second radiator 20 in the antenna device 100 can be more flexible, so as to adapt to different device layouts in different electronic devices 1000 .

[0137] Exemplarily, both the first radiator 10 and the second radiator 20 may be in the shape of a long strip. It should be understood that the long strip means that the length of the component may be much greater than the width of the component. The first radiator 10 and / or the second radiator 20 may be in the shape of a completely straight long strip, or the first radiator 10 and / or the second radiator 20 may be partially bent, but the overall extension direction may still be roughly in the shape of a straight strip to avoid other components / structures (such as screw holes, etc.) in the electronic device 1000.

[0138] Exemplarily, the ratio of the physical length of the first radiator 10 to the physical length of the second radiator 20 may be in the range of 0.7 to 1.3. For example, the ratio of the physical length of the first radiator 10 to the physical length (i.e., mechanical length or geometric length) of the second radiator 20 may be 0.8, 0.83, 0.92, 1, 1.05, 1.14 or 1.2. In this embodiment, the ratio of the physical length of the first radiator 10 to the physical length of the second radiator 20 may be 1. In this way, the physical length of the first radiator 10 may be close to the physical length of the second radiator 20, so that the first radiator 10 and the second radiator 20 can be better coupled, which is conducive to improving the working performance of the antenna device 100. In other embodiments, the first radiator 10 and / or the second radiator 20 may also be in other shapes, and the present application does not specifically limit the shape of the first radiator 10 and / or the second radiator 20.

[0139] Figure 7a yes Figure 5a The illustrated diagram is a schematic diagram of the current direction of the antenna device 100 in the half-wavelength mode when the switching component 40 is in the first state. Figure 7b yes Figure 5a The floor 400 shown is a schematic diagram of the current direction in the half-wavelength mode when the switching component 40 is in the first state. It should be noted that the current direction in the antenna device 100 and the floor 400 is not fixed, but changes periodically over time. In this embodiment, Figure 7a , Figure 7b The current directions shown in the subsequent figures are schematic diagrams of the current directions of the antenna device 100 and the floor 400 at a certain moment.

[0140] like Figure 7a and Figure 7bAs shown, when the switching component 40 is in the first state, the antenna device 100 can generate unidirectional currents on the first radiator 10 and the second radiator 20 based on the half-wavelength mode. A unidirectional current can be generated on the connecting branch 30. Among them, the current direction of the current on the first section 33 of the connecting branch 30 is the same as the current direction on the second section 34. The current can reach a maximum value at the middle position of the connecting branch 30 (that is, the position of the switching component 40 in this embodiment). The current of the first radiator 10 can flow into the floor 400 through the first grounding point 10a. The current of the second radiator 20 can flow into the floor 400 through the second grounding point 20a. The current between the first radiator 10 and the second radiator 20 can mainly flow through the floor 400. At this time, the first radiator 10 and the second radiator 20 can generate a first resonance point.

[0141] Exemplarily, in the first radiator 10, the current may flow from the first grounding point 10a of the first radiator 10 to the second end 12 of the first radiator 10. In the second radiator 20, the current may flow from the second end 22 of the second radiator 20 to the second grounding point 20a of the second radiator 20. On the floor 400, the current may flow from the second grounding point 20a of the second radiator 20 to the first grounding point 10a of the first radiator 10. That is, the current may flow through the first radiator 10, the floor 400, and the second radiator 20.

[0142] Figure 8a yes Figure 5a The illustrated diagram is a schematic diagram of the current direction of the antenna device 100 in the one-wavelength mode when the switching component 40 is in the first state. Figure 8b yes Figure 5a The floor 400 shown is a schematic diagram of the current direction in the one-wavelength mode when the switching component 40 is in the first state.

[0143] like Figure 8a and Figure 8b As shown, when the switching component 40 is in the first state, the antenna device 100 can generate a reverse current in the first radiator 10 and the second radiator 20 based on a one-time wavelength mode. A reverse current can be generated on the connecting branch 30. Among them, the current direction of the current on the first section 33 of the connecting branch 30 is opposite to the current direction on the second section 34. The current can reach a minimum value at the middle position of the connecting branch 30. The current between the first radiator 10 and the second radiator 20 can mainly flow through the connecting branch 30. That is, the current of the first radiator 10 can flow into the second radiator 20 through the connecting branch 30. At this time, the first radiator 10 and the second radiator 20 can generate a second resonance point.

[0144] Exemplarily, in the first radiator 10, the current may flow from the first grounding point 10a of the first radiator 10 to the second end 12 of the first radiator 10. In the second radiator 20, the current may flow from the second grounding point 20a of the second radiator 20 to the second end 22 of the second radiator 20. In the connecting branch 30, the current may flow from the first connecting end 31 to the position of the switching component 40, and reverse at the position of the switching component 40, and then flow from the position of the switching component 40 to the second connecting end 32. That is, the current may flow through the first radiator 10, the connecting branch 30 and the second radiator 20.

[0145] It should be noted that, in this embodiment, the generation of unidirectional currents on two conductors (e.g., the first radiator 10 and the second radiator 20) may mean that the currents on the two conductors have no reverse points, and the currents on the two conductors flow in the same direction. The generation of reverse currents on a conductor may mean that the current has at least one reverse point on the conductor. The generation of reverse currents on two conductors may mean that the currents on the two conductors have no reverse points, and the currents on the two conductors flow in opposite directions. In other embodiments, when the number of conductors is three or more, the generation of unidirectional currents or reverse currents on multiple conductors may be understood as the above concepts accordingly.

[0146] Figure 9a yes Figure 5a The illustrated diagram is a schematic diagram of the current direction of the antenna device 100 in the half-wavelength mode when the switching component 40 is in the second state. Figure 9b yes Figure 5a The floor 400 shown is a schematic diagram of the current direction in the half-wavelength mode when the switching component 40 is in the second state.

[0147] like Figure 9a and Figure 9b As shown, when the switching component 40 is in the second state, the antenna device 100 can generate unidirectional currents on the first radiator 10 and the second radiator 20 based on the half-wavelength mode. A unidirectional current can be generated on the connecting branch 30. Among them, the current direction of the current on the first section 33 of the connecting branch 30 is the same as the current direction on the second section 34. The current can reach a maximum value at the middle position of the connecting branch 30. The path of the current flowing from the second radiator 20 through the connecting branch 30 to the first radiator 10 is shorter than the path of the current flowing from the second grounding point 20a of the second radiator 20 through the floor 400 to the first grounding point 10a of the first radiator 10. At this time, the current between the first radiator 10 and the second radiator 20 can mainly flow through the connecting branch 30. That is, the current of the first radiator 10 can flow from the connecting branch 30 into the second radiator 20. The first radiator 10 and the second radiator 20 can generate a third resonance point. Among them, Figure 7b and Figure 9bThe directions of the current on the floor 400 when the switching component 40 is in the first state and the second state are respectively illustrated. The current on the floor 400 between the first radiator 10 and the second radiator 20 becomes significantly weaker.

[0148] For example, in the first radiator 10, the current may flow from the first grounding point 10a of the first radiator 10 to the second end 12 of the first radiator 10. In the second radiator 20, the current may flow from the second end 22 of the second radiator 20 to the second grounding point 20a of the second radiator 20. In the connecting branch 30, the current may flow from the second connecting end 32 to the first connecting end 31 through the switching component 40. That is, the current may flow through the first radiator 10, the connecting branch 30 and the second radiator 20.

[0149] Fig.10a yes Figure 5a The illustrated diagram is a schematic diagram of the current direction of the antenna device 100 in the one-wavelength mode when the switching component 40 is in the second state. Fig.10b yes Figure 5a The floor 400 shown is a schematic diagram of the current direction in the one-wavelength mode when the switching component 40 is in the second state.

[0150] like Fig.10a and Fig.10b As shown, when the switching component 40 is in the second state, the antenna device 100 can generate a reverse current in the first radiator 10 and the second radiator 20 based on a one-time wavelength mode. A reverse current can be generated on the connecting branch 30. Among them, the current direction of the current on the first section 33 of the connecting branch 30 is opposite to the current direction on the second section 34. The current can reach a minimum value at the middle position of the connecting branch 30. The current between the first radiator 10 and the second radiator 20 can mainly flow through the connecting branch 30. That is, the current of the first radiator 10 can flow into the second radiator 20 through the connecting branch 30. The first radiator 10 and the second radiator 20 can generate a fourth resonance point.

[0151] Exemplarily, in the first radiator 10, the current may flow from the first grounding point 10a of the first radiator 10 to the second end 12 of the first radiator 10. In the second radiator 20, the current may flow from the second grounding point 20a of the second radiator 20 to the second end 22 of the second radiator 20. In the connecting branch 30, the current may flow from the first connecting end 31 to the position of the switching component 40, and reverse at the position of the switching component 40, and then flow from the position of the switching component 40 to the second connecting end 32. That is, the current may flow through the first radiator 10, the connecting branch 30 and the second radiator 20.

[0152] Fig.11 yes Figure 5aThe S11 curve of the antenna device 100 shown is a schematic diagram when the switching component 40 is in the first state and the second state respectively.

[0153] Curve 1 represents the S11 curve of the antenna device 100 when the switch component 40 is in the first state. Curve 2 represents the S11 curve of the antenna device 100 when the switch component 40 is in the second state.

[0154] like Fig.11 As shown, when the switching component 40 is in the first state, the antenna device 100 can generate two corresponding resonances based on the half-wavelength mode and the one-time wavelength mode at the same time, and has two resonance points (i.e., the first resonance point H1 and the second resonance point H2 in this embodiment), that is, the antenna device 100 can operate in two resonance frequency bands when the switching component 40 is in the first state, and the distance between the two resonance frequency bands is relatively close. In one embodiment, the two resonance frequency bands can be continuous to achieve broadband coverage. It should be understood that when the ratio between the two frequencies corresponding to the two resonance points is in the range of 1:1 to 1:1.2, the two resonance frequency bands where the two resonance points are located can be regarded as continuous. Among them, the working frequency band of the antenna device 100 in the half-wavelength mode is lower, and the working frequency band of the antenna device 100 in the one-time wavelength mode is higher. The frequency of the second resonance point H2 is higher than the frequency of the first resonance point H1. In this embodiment, the operating frequency of the antenna device 100 in the half-wavelength mode can be 3.92 GHz. The operating frequency of the antenna device 100 in the one-time wavelength mode can be 4.04 GHz.

[0155] When the switching component 40 is in the second state, the antenna device 100 can generate two corresponding resonances based on the half-wavelength mode and the one-time wavelength mode at the same time, and has two resonance points (that is, the third resonance point H3 and the fourth resonance point H4 in this embodiment), that is, the antenna device 100 can operate in two resonance frequency bands when the switching component 40 is in the second state, and the distance between the two resonance frequency bands is relatively close. In one embodiment, the two resonance frequency bands can be continuous, and broadband coverage can be achieved. Among them, the resonance frequency band of the antenna device 100 in the half-wavelength mode is higher, and the operating frequency band of the antenna device 100 in the one-time wavelength mode is lower. The frequency of the fourth resonance point H4 is higher than the frequency of the third resonance point H3. The frequency of the third resonance point H3 is also higher than the frequency of the second resonance point H2. In this embodiment, the operating frequency of the antenna device 100 in the half-wavelength mode can be 4.18 GHz. The operating frequency of the antenna device 100 in the one-time wavelength mode can be 4.09 GHz.

[0156] At this time, the operating frequency of the antenna device 100 in the one-wavelength mode when the switching component 40 is in the first state is higher, and the operating frequency of the antenna device 100 in the one-wavelength mode when the switching component 40 is in the second state is lower, and there is partial frequency overlap in the operating frequency bands in the two states. Among them, when the ratio between the frequency of the second resonance point H2 corresponding to the operating frequency of the antenna device 100 in the one-wavelength mode when the switching component 40 is in the first state and the frequency of the third resonance point H3 corresponding to the operating frequency of the antenna device 100 in the one-wavelength mode when the switching component 40 is in the second state is in the range of 1:1 to 1:1.1, it can be regarded that there is partial frequency overlap in the two operating frequency bands. The operating frequency of the antenna device 100 in the half-wavelength mode when the switching component 40 is in the first state is lower, and the operating frequency of the antenna device 100 in the half-wavelength mode when the switching component 40 is in the second state is higher. That is, when the switching component 40 switches from the first state to the second state, the frequency of the antenna device 100 in the one-wavelength mode is less affected, and the frequency in the half-wavelength mode is more affected.

[0157] In other words, the antenna device 100 in this embodiment can generate at least two resonances regardless of whether the switching component 40 is in the first state or the second state, that is, it can operate in at least two resonant frequency bands. The two resonant frequency bands can be continuous, so that broadband coverage can be formed respectively. At the same time, there is a partial frequency overlap between the working frequency band of the antenna device 100 when the switching component 40 is in the first state and the working frequency band of the antenna device 100 when the switching component 40 is in the second state, so that the working frequency band of the antenna device 100 when the switching component 40 is in the first state and the working frequency band of the antenna device 100 when the switching component 40 is in the second state can be continuous, thereby forming a wider working bandwidth. It should be noted that in this embodiment, in the same S11 curve, when the S11 value of the connection point of two frequency bands is below -3db, the two frequency bands can be regarded as continuous.

[0158] In other embodiments, Fig.12As shown, the distance from the first connection point 10b to the first grounding point 10a can also be greater than the distance from the first connection point 10b to the second end 12 of the first radiator 10. The distance from the second connection point 20b to the second grounding point 20a can also be greater than the distance from the second connection point 20b to the second end 22 of the second radiator 20. That is, the first connection point 10b can be arranged close to the second end 22 of the second radiator 20. The second connection point 20b can be arranged close to the second end 12 of the first radiator 10. When the switching component 40 is in the first state, the antenna device 100 can operate in two frequency bands, and the distance between the two frequency bands is relatively close, and the two frequency bands are continuous, and broadband coverage can be achieved. When the switching component 40 is in the second state, the antenna device 100 can operate in two frequency bands, and the distance between the two frequency bands is relatively far, forming dual-frequency coverage. Among them, the operating frequency of the antenna device 100 in the one-wavelength mode when the switching component 40 is in the first state is higher, and the operating frequency of the antenna device 100 in the one-wavelength mode when the switching component 40 is in the second state is lower, and there is partial frequency overlap in the operating frequency bands in the two states, so that the operating frequency band of the antenna device 100 when the switching component 40 is in the first state and the operating frequency band of the antenna device 100 when the switching component 40 is in the second state can be continuous, thereby forming a wider operating bandwidth.

[0159] It can be understood that, compared with the two radiators in the antenna device 500, which are independent of each other and do not contact each other, the switch 504 is set at the ground end of one of the radiators to control the electrical connection state between one of the radiators and the floor 600. By changing the electrical connection state between one of the radiators and the floor 600, the frequency of the antenna device 500 can be adjusted. By switching the switch 504, the antenna device 500 can generate three resonances. The antenna device 100 in this embodiment is provided with a connecting branch 30 between the first radiator 10 and the second radiator 20, and a switching component 40 is provided to electrically connect the connecting branch 30. By controlling the switching component 40 to switch between the first state and the second state, the current on the connecting branch 30 is controlled to switch between the disconnected state and the conductive state, and the electrical connection state between the first radiator 10 and the second radiator 20 is controlled, and the current flow path of the antenna device 100 is changed, thereby adjusting the frequency of the antenna device 100. Among them, the first connection point 10b and the second connection point 20b can be located between the first grounding point 10a and the second grounding point 20a, that is, the first grounding point 10a and the second grounding point 20a can be set away from each other, and the two can be located on different sides of the connecting branch 30. In this way, when the switching component 40 is converted from the first state to the second state, the operating frequency of the antenna device 100 in the half-wavelength mode and the operating frequency of the antenna device 100 in the double wavelength mode will both increase. In other words, the first radiator 10 and the second radiator 20 in this embodiment can be electrically connected to the floor 400 regardless of whether the switching component 40 is in the first state or the second state, so that the antenna device 100 can operate in two resonant frequency bands regardless of whether the switching component 40 is in the first state or the second state, that is, the entire antenna device 100 can generate four resonances, and the working performance is better.

[0160] Secondly, the switching component 40 in this embodiment is located at the middle position of the connecting branch 30. In this way, when the antenna device 100 is in the one-wavelength mode, the current will reach the minimum value at the middle position of the connecting branch 30 (that is, at the position of the switching component 40 in this embodiment), and at this time, the switching of the switching component 40 between the first state and the second state has little effect on the current distribution, and the frequency change of the antenna device 100 in the one-wavelength mode is small, so that there is a partial frequency overlap in the working frequency bands in these two states. When the antenna device 100 is in the half-wavelength mode, the path of the current flowing from the second radiator 20 through the connecting branch 30 to the first radiator 10 is shorter than the path of the current flowing from the second grounding point 20a of the second radiator 20 through the floor 400 to the first grounding point 10a of the first radiator 10. At this time, the switching of the switching component 40 between the first state and the second state has a greater impact on the current path, and the frequency change of the antenna device 100 in the half-wavelength mode is greater. For example, when the switch element 40 switches from the first state to the second state, the current between the first radiator 10 and the second radiator 20 mainly flows through the connecting branch 30 , the current path becomes shorter, and the frequency of the antenna device 100 increases.

[0161] In other words, when the state of the switching component 40 changes, the antenna device 100 in this embodiment can change the length of the path through which the current flows between the first radiator 10 and the second radiator 20, so that the frequency change of the antenna device 100 in the half-wavelength mode is large. At the same time, the switching component 40 is located at the middle position of the connecting branch 30, so that the frequency change of the antenna device 100 in the one-time wavelength mode is small. In this way, the working frequency band of the antenna device 100 when the switching component 40 is in the first state and the working frequency band of the antenna device 100 when the switching component 40 is in the second state have partial frequency overlap, so that the working frequency band of the antenna device 100 when the switching component 40 is in the first state and the working frequency band of the antenna device 100 when the switching component 40 is in the second state can be continuous, thereby forming a wider working bandwidth. In this way, under the same volume, the antenna device 100 in this embodiment only needs to set the connecting branch 30 between the first radiator 10 and the second radiator 20, and set the switching component 40 at the middle position of the connecting branch 30, so as to form a wider working bandwidth, and the working performance of the antenna device 100 is higher. Under the condition of the same working bandwidth, compared with the antenna device that needs to be provided with more tuning circuits, the overall structure of the antenna device 100 in this embodiment is simpler, which is conducive to the miniaturization of the antenna device 100, thereby freeing up more space inside the electronic device 1000. At the same time, when the switching component 40 is located at the middle position of the connecting branch 30, but not at the midpoint of the connecting branch 30, that is, when the switching component 40 is slightly deviated from the midpoint of the connecting branch 30, the switching component 40 can also play a certain role in frequency adjustment for the antenna device 100.

[0162] In addition, compared with some antenna devices in which the two ground ends of the two radiators are arranged close to each other to form an electrical coupling, and the two open ends of the two radiators are arranged close to each other to form a magnetic coupling. In the present embodiment, the first ground point 10a of the first radiator 10 and the second ground point 20a of the second radiator 20 of the antenna device 100 are respectively located on different sides of the connecting branch 30, and the first ground point 10a of the first radiator 10 and the second ground point 20a of the second radiator 20 can be far away from each other. In this way, the first ground point 10a of the first radiator 10 can be arranged close to the second end 22 of the second radiator 20 (that is, the open end of the second radiator 20), and electromagnetic coupling can be formed between the two. The second ground point 20a of the second radiator 20 can be arranged close to the second end 12 of the first radiator 10 (that is, the open end of the first radiator 10), and electromagnetic coupling can be formed between the two, so that the radiation efficiency of the antenna device 100 can be effectively improved, which is conducive to alleviating the problem of the minimum radiation efficiency of the antenna device 100.

[0163] In some embodiments, Fig.13 As shown, the switching component 40 may also include a tuning element. The tuning element may include at least one of a capacitor and an inductor. Exemplarily, the tuning element may be connected in series between the connecting branch 30 and the antenna switch. The antenna switch and the tuning element may be used together to control the electrical connection state between the first section 33 and the second section 34 of the connecting branch 30. Among them, the switching component 40 may be electrically connected to the end face of the first section 33 close to the second section 34, or may be electrically connected at a position a certain distance from the end face of the first section 33 close to the second section 34, such as a position 1 mm, 2 mm, etc. from the above-mentioned end face. The setting of the switching component 40 electrically connecting the second section 34 is roughly the same as the setting of the switching component 40 electrically connecting the first section 33, and will not be repeated here.

[0164] In some other embodiments, the switching component 40 may also include a plurality of tuning elements. The antenna switch may have a plurality of gating circuits. In this embodiment, the number of gating circuits of the antenna switch may be equal to the number of tuning elements, for example, four. Two of the four tuning elements may include a capacitor, and the remaining two may include an inductor. The two inductors may be L1 and L2, respectively. The two capacitors may be C1 and C2, respectively. At this time, a plurality of capacitors and a plurality of inductors may be connected in series in a plurality of gating circuits one by one, and form a plurality of switching circuits. A plurality of switching circuits may be arranged in parallel. It is understood that by connecting a tuning element in series between the connecting branch 30 and the antenna switch, the frequency of the antenna device 100 may be better adjusted while controlling the electrical connection state between the first section 33 and the second section 34 of the connecting branch 30, thereby improving the working performance of the antenna device 100. Secondly, in this embodiment, a plurality of tuning elements are arranged in series with a plurality of gating circuits in the antenna switch in a one-to-one correspondence to form a plurality of switching circuits, so that the entire antenna device 10 can operate in more different frequency bands, which is conducive to improving the performance of the antenna device 100. For ease of understanding, Fig.13 The switching component 40 is framed by a dotted line. The present application does not limit the specific form of the switching component 40.

[0165] Fig.14 yes Figure 6a The structure diagram of the antenna device 100 and the floor 400 in another embodiment is shown.

[0166] like Fig.14 As shown, the structure of the antenna device 100 in this embodiment is similar to Figure 6a The structure of the antenna device 100 shown is substantially the same, and the same parts are not repeated. The difference is that the first radiator 10 and / or the second radiator 20 in this embodiment can be substantially flat. The width of the first radiator 10 and / or the second radiator 20 can be relatively wide. Exemplarily, the widths of the first radiator 10 and the second radiator 20 are both relatively wide, and the widths of both can be less than 0.5λ. In this way, by increasing the width of the first radiator 10 and / or the second radiator 20, the working bandwidth of the antenna device 100 can be effectively expanded, and the working performance of the antenna device 100 can be improved.

[0167] Fig.15 yes Figure 6a The structure diagram of the antenna device 100 and the floor 400 in another embodiment is shown.

[0168] like Fig.15 As shown, the structure of the antenna device 100 in this embodiment is similar to Figure 6aThe structure of the antenna device 100 shown is substantially the same, and the same parts are not repeated. The difference is that the antenna device 100 in this embodiment may also include a third radiator 60. The number of connecting branches 30 may be two. The number of switching components 40 may be two. The two switching components 40 may be located in the middle position of the two connecting branches 30 in a one-to-one correspondence. Exemplarily, the third radiator 60 may be located on the side of the second radiator 20 away from the first radiator 10. One of the connecting branches 30 may be connected between the first radiator 10 and the second radiator 20. Another connecting branch 30 may be connected between the second radiator 20 and the third radiator 60. At this time, the antenna device 100 can achieve switching of four states through the cooperation of the two switching components 40. Among them, the four states can be respectively: both switching components 40 are in the first state; both switching components 40 are in the second state; the switching component 40 located between the first radiator 10 and the second radiator 20 is in the first state, and the switching component 40 located between the second radiator 20 and the third radiator 60 is in the second state; the switching component 40 located between the first radiator 10 and the second radiator 20 is in the second state, and the switching component 40 located between the second radiator 20 and the third radiator 60 is in the first state. In other embodiments, the antenna device 100 may further include a fourth radiator, a fifth radiator, etc. The antenna device 100 may also include more connecting branches 30 and switching components 40. Among them, the number of connecting branches 30 may be the number of radiators minus one. The number of connecting branches 30 may be the same as the number of switching components 40.

[0169] It can be understood that the antenna device 100 in this embodiment is provided with more radiators, and connecting branches 30 are provided in two adjacent radiators, and a switching component 40 is provided at the middle position of each connecting branch 30, so that the antenna device 100 can achieve switching of more states through the cooperation of multiple switching components 40, thereby forming a wider working bandwidth, which is beneficial to improving the working performance of the antenna device 100.

[0170] Fig.16 yes Figure 6a The structure diagram of the antenna device 100 in other embodiments is shown.

[0171] like Fig.16 As shown, the structure of the antenna device 100 in this embodiment is similar to Figure 6a The structure of the antenna device 100 shown is substantially the same, and the same parts are not repeated. The difference is that the connecting branch 30 can also be in a straight line, that is, there is no bending part in the connecting branch 30. Figure 6aThe connecting branch 30 of the antenna device 100 shown in the figure has a shorter length in this embodiment. When the switching component 40 is in the second state and the antenna device 100 is in the half-wavelength mode, the current flow path between the first radiator 10 and the second radiator 20 is shorter, so that the operating frequency of the antenna device 100 in this state can be increased, which is beneficial to improving the working performance of the antenna device 100.

[0172] Fig.17 yes Figure 6a The structure diagram of the antenna device 100 in other embodiments is shown. Fig.18 yes Fig.17 The structure diagram of the antenna device 100 in other embodiments is shown.

[0173] like Fig.17 As shown, the structure of the antenna device 100 in this embodiment is similar to Figure 6a The structure of the antenna device 100 shown is substantially the same, and the same parts are not repeated. The difference is that the first projection of the first radiator 10 and the second projection of the second radiator 20 can also only partially overlap in the width direction of the first projection. In this case, the first projection and the second projection can be partially staggered, that is, the first radiator 10 and the second radiator 20 can be partially staggered in the length direction of the first radiator 10.

[0174] In some other embodiments, Fig.18 As shown, the first projection of the first radiator 10 and the second projection of the second radiator 20 may not have an overlapping portion in the width direction of the first projection. At this time, the first projection and the second projection may be completely staggered, that is, the first radiator 10 and the second radiator 20 may be completely staggered in the length direction of the first radiator 10. It can be understood that in this embodiment, by staggering the first radiator 10 and the second radiator 20 in the length direction of the first radiator 10, the arrangement between the first radiator 10 and the second radiator 20 can be better adapted to the internal space of the electronic device 1000, and the arrangement of the first radiator 10 and the second radiator 20 is more flexible.

[0175] Fig.19 yes Figure 6a The structure diagram of the antenna device 100 in other embodiments is shown.

[0176] like Fig.19 As shown, the structure of the antenna device 100 in this embodiment is similar to Figure 6aThe structure of the antenna device 100 shown is substantially the same, and the same parts are not repeated. The difference is that an angle is formed between the first projection of the first radiator 10 and the second projection of the second radiator 20. Among them, the angle α between the first axis T1 of the first projection and the axis T2 of the second projection can be 30°. In this way, by setting the first radiator 10 and the second radiator 20 at an angle, the arrangement between the first radiator 10 and the second radiator 20 can be better adapted to the internal space of the electronic device 1000, and the arrangement of the first radiator 10 and the second radiator 20 is more flexible. In some other embodiments, the angle α between the first axis T1 of the first projection and the axis T2 of the second projection can be 10°, 12°, 23°45°, etc.

[0177] Fig. 20 yes Figure 2a The illustrated schematic diagram is a structural diagram of a partial structure of the electronic device 1000 in some implementations. Fig.21 yes Fig. 20 A schematic diagram of the structure shown in another perspective. Fig. 22 yes Fig. 20 The structure shown is a schematic cross-sectional view of some embodiments along line AA.

[0178] like Figure 20 to Figure 22 As shown, the antenna device 100 in this embodiment is Figure 5a The structures of the antenna devices 100 shown are substantially the same, and the same parts are not repeated. The differences between the two will be described in detail below. In this embodiment, the middle plate 312 can be made of metal. The middle plate 312 can serve as the floor 400 of the antenna device 100. One of the first radiator 10 and the second radiator 20 can be a frame antenna, that is, one of the first radiator 10 and the second radiator 20 is a part of the frame 311 of the electronic device 1000.

[0179] Exemplarily, the first radiator 10 may be a frame antenna. The width direction of the first radiator 10 may be perpendicular to the floor 400, that is, the width direction of the first radiator 10 may be the height direction of the frame 311. The frame 311 may be provided with a first slit 311a. The frame 311 may be grounded at a first position 311b. At this time, the portion of the frame 311 between the first position 311b and the first slit 311a may constitute the first radiator 10, that is, the first radiator 10 may be a frame antenna. One end of the first radiator 10 close to the first slit 311a is an open end of the first radiator 10 (that is, the second end 12 of the first radiator 10). One end of the first radiator 10 close to the first position 311b is the first end 11 of the first radiator 10. The first grounding point 10a of the first radiator 10 may be located at the first position 311b, that is, it may be located at the first end 11. The first end 11 may have no end surface. The first radiator 10 may be electrically connected to the floor 400 at the first grounding point 10a.

[0180] Exemplarily, the second radiator 20 may be located on a side of the first radiator 10 close to the floor 400. The second radiator 20 may be disposed on the floor 400. The second radiator 20 and the floor 400 may overlap in projection in the thickness direction of the floor 400. The first radiator 10 and the second radiator 20 may be disposed side by side. In this embodiment, the feeding point may be disposed on the second radiator 20. The feed source 50 may be located on the inner side of the frame 311 and may be electrically connected to the second radiator 20 at the feeding point. The switching component 40 may be fixed to the floor 400 by some fixings and electrically connected to the connecting branch 30. In other embodiments, the feeding point may also be located on the first radiator 10. In some other embodiments, the metal part in the back cover 320 may also be used as the floor 400. At this time, the second radiator 20 may also be disposed on the back cover 320.

[0181] Exemplarily, the frame 311 may further be provided with a second gap 311b. The second gap 311b may be connected to the first gap 311a. The second gap 311b may separate the first radiator 10 from the floor 400 in the thickness direction of the floor 400. The first gap 311a and the second gap 311b may be filled with a non-metallic medium 70 (such as plastic, etc.). At this time, the distance between the projection of the first radiator 10 in the thickness direction of the floor 400 (i.e., the first projection) and the floor 400 is zero.

[0182] It can be understood that, compared with multiple radiators being arranged on the frame 311, the first radiator 10 of the antenna device 100 in this embodiment is arranged on the frame 311, and the second radiator 20 is arranged on the floor 400. In this way, the second radiator 20 will not occupy the space of other frame antennas in the electronic device 1000, thereby freeing up more space in the frame 311 to meet different setting requirements of the electronic device 1000, such as more antennas can be arranged on the frame 311 of the electronic device 1000, thereby improving the communication performance of the electronic device 1000 and enhancing the user experience.

[0183] Secondly, in this embodiment, the first slit 311a and the second slit 311b are provided in the frame 311 to respectively disconnect the first radiator 10 from the rest of the frame 311 and to separate the first radiator 10 from the floor 400, thereby ensuring a good radiation environment for the first radiator 10. At the same time, the second slit 311b can separate the first radiator 10 from the floor 400 in the thickness direction of the floor 400, so that the distance between the projection of the first radiator 10 on the plane where the floor 400 is located and the floor 400 is zero, effectively reducing the distance between the frame 311 of the electronic device 1000 and the display screen 202, thereby effectively increasing the screen 200 ratio of the electronic device 1000 and improving the user experience.

[0184] In other embodiments, Fig.23 As shown, the frame 311 may not be provided with the second gap 311b. The floor 400 may also be provided with a third gap 401. The third gap 401 may separate the first radiator 10 from the floor 400 in the width direction of the second radiator 20. At this time, both the first gap 311a and the third gap 401 may be filled with a non-metallic medium 70.

[0185] In some other embodiments, Fig.24 As shown, the frame 311 may be provided with the second gap 311b, and the floor 400 may also be provided with the third gap 401. The second gap 311b may be connected to the third gap 401. At this time, the first gap 311a, the second gap 311b and the third gap 401 may all be filled with a non-metallic medium 70.

[0186] It should be noted that, in the absence of conflict, the features in the embodiments of the present application can be combined with each other, and any combination of features in different embodiments is also within the protection scope of the present application. That is to say, the multiple embodiments described above can also be arbitrarily combined according to actual needs.

[0187] It should be noted that all the above drawings are illustrative illustrations of the present application and do not represent the actual size of the product. Moreover, the size ratio relationship between the components in the drawings is not intended to limit the actual product of the present application.

[0188] The above are only some implementation methods of the present application, and the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by any person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. An electronic device (1000), characterized in that: The invention comprises a first radiator (10), a second radiator (20), a connecting branch (30), a switching component (40) and a feed source (50), wherein the first radiator (10) and the second radiator (20) are arranged at intervals, the first radiator (10) is provided with a first grounding point (10a) and a first connecting point (10b) arranged at intervals, the second radiator (20) is provided with a second grounding point (20a) and a second connecting point (20b) arranged at intervals, the first connecting point (10b) and the second connecting point (20b) are located between the first grounding point (10a) and the second grounding point (20a), one end of the connecting branch (30) is electrically connected to the first connecting point (10b), the other end of the connecting branch (30) is electrically connected to the second connecting point (20b), the switching component (40) is electrically connected to the connecting branch (30), and the feed source (50) is electrically connected to one of the first radiator (10) and the second radiator (20); The switching component (40) includes a first state and a second state. When the switching component (40) is in the first state, the first radiator (10) and the second radiator (20) are used to generate at least a first resonance point (H1) and a second resonance point (H2); when the switching component (40) is in the second state, the first radiator (10) and the second radiator (20) are used to generate at least a third resonance point (H3) and a fourth resonance point (H4). The frequency of the first resonance point (H1) and the frequency of the second resonance point (H2) are both lower than the frequency of the third resonance point (H3), and the frequency of the first resonance point (H1) and the frequency of the second resonance point (H2) are also lower than the frequency of the fourth resonance point (H4).

2. The electronic device (1000) according to claim 1, characterized in that: The frequency of the second resonance point (H2) is higher than the frequency of the first resonance point (H1); The frequency of the fourth resonance point (H4) is higher than the frequency of the third resonance point (H3), and the ratio between the frequency of the second resonance point (H2) and the frequency of the third resonance point (H3) is in the range of 1:1 to 1:1.

1.

3. The electronic device (1000) according to any one of claims 1 to 2, characterized in that: When the switching component (40) is in the first state, the current of the first radiator (10) flows into the floor (400) of the electronic device (1000) via the first grounding point (10a), and the current of the second radiator (20) flows into the floor (400) of the electronic device (1000) via the second grounding point (20a); When the switching component (40) is in the second state, the current of the first radiator (10) flows into the second radiator (20) via the connecting branch (30).

4. The electronic device (1000) according to any one of claims 1 to 3, characterized in that: When the switching component (40) is in the first state, at the frequency of the first resonance point (H1) generated by the first radiator (10) and the second radiator (20), the current on the first radiator (10) and the current on the second radiator (20) are in the same direction; When the switching component (40) is in the first state, at the frequency of the second resonance point (H2) generated by the first radiator (10) and the second radiator (20), the current on the first radiator (10) and the current on the second radiator (20) are opposite.

5. The electronic device (1000) according to any one of claims 1 to 4, characterized in that: When the switching component (40) is in the second state, at the frequency of the third resonance point (H3) generated by the first radiator (10) and the second radiator (20), the current on the first radiator (10) and the current on the second radiator (20) are in the same direction; When the switching component (40) is in the second state, at the frequency of the fourth resonance point (H4) generated by the first radiator (10) and the second radiator (20), the current on the first radiator (10) and the current on the second radiator (20) are opposite.

6. The electronic device (1000) according to any one of claims 1 to 5, characterized in that: The first radiator (10) comprises a first end (11) and a second end (12), the first grounding point (10a) is located at the first end (11) of the first radiator (10), the second end (12) of the first radiator (10) is an open end, and the first connection point (10b) is located between the first grounding point (10a) and the second end (12) of the first radiator (10); The second radiator (20) comprises a first end (21) and a second end (22), the second grounding point (20a) is located at the first end (21) of the second radiator (20), the second end (22) of the second radiator (20) is an open end, and the second connection point (20b) is located between the second grounding point (20a) and the second end (22) of the second radiator (20); The electronic device (1000) further satisfies at least one of the following limitations: The distance from the first connection point (10b) to the first grounding point (10a) is smaller than the distance from the first connection point (10b) to the second end (12) of the first radiator (10); The distance from the second connection point (20b) to the second grounding point (20a) is smaller than the distance from the second connection point (20b) to the second end (22) of the second radiator (20).

7. The electronic device (1000) according to claim 6, characterized in that: The distance between the first grounding point (10a) and the second end (22) of the second radiator (20) is a first distance, the distance between the first grounding point (10a) and the second grounding point (20a) is a second distance, and the distance between the second grounding point (20a) and the second end (12) of the first radiator (10) is a third distance; The electronic device (1000) further satisfies at least one of the following limitations: The first distance is smaller than the second distance; The third distance is smaller than the second distance.

8. The electronic device (1000) according to claim 7, characterized in that: The distance between the second end (22) of the second radiator (20) and the second end (12) of the first radiator (10) is a fourth distance; The electronic device (1000) further satisfies at least one of the following limitations: The first distance is smaller than the fourth distance; The third distance is smaller than the fourth distance.

9. The electronic device (1000) according to any one of claims 1 to 8, characterized in that: The connecting branch (30) comprises a first section (33) and a second section (34) which are arranged at intervals, the first section (33) being connected to the first connection point (10b), the second section (34) being connected to the second connection point (20b), the switching component (40) being connected in series between the first section (33) and the second section (34), and the ratio of the physical length of the first section (33) to the physical length of the second section (34) being in the range of 0.5 to 2.

10. The electronic device (1000) according to any one of claims 1 to 9, characterized in that: The projection of the first radiator (10) on the thickness direction of the floor (400) of the electronic device (1000) is a first projection, the projection of the second radiator (20) on the thickness direction of the floor (400) is a second projection, and at least one of the first projection and the second projection overlaps with the projection of the floor (400) on the thickness direction of the floor (400).

11. The electronic device (1000) according to claim 10, characterized in that: An angle between a length extension direction of the first projection and a length extension direction of the second projection is less than or equal to 45°.

12. The electronic device (1000) according to any one of claims 1 to 11, characterized in that: The first radiator (10) and the second radiator (20) are arranged in parallel.

13. The electronic device (1000) according to any one of claims 1 to 12, characterized in that: The ratio of the physical length of the first radiator (10) to the physical length of the second radiator (20) is in the range of 0.7 to 1.

3.

14. The electronic device (1000) according to any one of claims 1 to 13, characterized in that: The width of the connecting branch (30) is smaller than the width of the first radiator (10), and smaller than the width of the second radiator (20).

15. The electronic device (1000) according to any one of claims 1 to 14, characterized in that: The switching component (40) comprises an antenna switch, and the antenna switch is used to realize the switching of the switching component (40) between the first state and the second state; The antenna switch includes a connected state and a disconnected state. When the antenna switch is in the connected state, the switching component (40) is in the first state. When the antenna switch is in the disconnected state, the switching component (40) is in the second state.

16. The electronic device (1000) according to claim 15, characterized in that: The switching component (40) further includes a tuning element, wherein the tuning element includes at least one of a capacitor and an inductor, and the antenna switch is connected in series with the tuning element.

17. The electronic device (1000) according to any one of claims 1 to 16, characterized in that: The first radiator (10) and the second radiator (20) are located on the same side of the floor (400) of the electronic device (1000), and the first radiator (10) and the second radiator (20) are arranged on a bracket.

18. The electronic device (1000) according to any one of claims 1 to 17, characterized in that: The electronic device (1000) further comprises a frame (311), the frame (311) being provided with a first slit (311a), the frame (311) being grounded at a first position (311b), the first radiator (10) comprising a conductive portion of the frame (311) located between the first position (311b) and the first slit (311a), the first end (11) of the first radiator (10) being the first position (311b) of the frame (311), and the second end (12) of the first radiator (10) being the end of the frame (311) where the first slit (311a) is formed; The second radiator (20) overlaps with the floor of the electronic device (1000) in projection in the thickness direction of the floor.

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