An electronic device

Abstract

The application discloses an electronic device, comprising: a first antenna radiator, a second antenna radiator and an adjusting module; the first antenna radiator and the second antenna radiator are arranged along a first side edge of the electronic device, and a first interval is provided between a first end of the first antenna radiator and a first end of the second antenna radiator; a first feeding point is arranged on the first antenna radiator, and a first grounding point is arranged on the second antenna radiator; the first feeding point and the first grounding point are arranged away from the first interval; the adjusting module comprises a first connecting end, a second connecting end and a third connecting end, the first connecting end is connected with the first end of the first antenna radiator, the second connecting end is connected with the first end of the second antenna radiator, and the third connecting end is grounded; the adjusting module is used for adjusting a capacitance value from the first antenna radiator to the second antenna radiator and adjusting a grounding capacitance value of the first antenna radiator when the first antenna radiator and the second antenna radiator work in a low-frequency frequency band.

Description

Technical Field

[0001] This application relates to the field of electronic product technology, and more particularly to an electronic device. Background Technology

[0002] As smart electronic devices become more feature-rich, their batteries become larger, their motherboards become smaller, and the space available for antennas becomes smaller. This leads to a greater shortage of space for antenna placement, resulting in antenna performance degradation. Furthermore, the limited space restricts the antenna placement of electronic devices to specific locations, confining the electromagnetic energy of the antenna to specific areas and making it difficult to adapt to various and complex environmental changes.

[0003] Current solutions primarily involve adding a small board in the battery compartment area for power feeding or loading, or relocating the antenna to the mainboard bracket using flexible printed circuit (FPC) antennas or laser direct forming (LDS) antenna technology. However, adding a small board in the battery compartment area still encroaches on battery space, and the insertion loss of flexible transmission lines is relatively large, limiting antenna energy to the vicinity of the battery compartment. Furthermore, the height of the mainboard area is limited, making FPC or LDS antennas significantly less effective than metal-framed antennas. Therefore, current designs, given limited antenna layout space, suffer from poor antenna performance and the electromagnetic energy being confined to a specific area, failing to adapt to environmental requirements and resulting in low antenna performance. Summary of the Invention

[0004] This application provides an electronic device to solve the problem that, in situations where antenna layout space is limited, the electromagnetic energy of a low-frequency antenna is confined to a specific area, making it unable to adapt to environmental requirements and resulting in low antenna performance.

[0005] To solve the above-mentioned technical problems, this application is implemented as follows:

[0006] In a first aspect, embodiments of this application provide an electronic device, including: a first antenna radiator, a second antenna radiator, and an adjustment module;

[0007] The first antenna radiator and the second antenna radiator are disposed along a first side of the electronic device, and there is a first gap between the first end of the first antenna radiator and the first end of the second antenna radiator.

[0008] The first antenna radiator is provided with a first feed point, and the second antenna radiator is provided with a first ground point; both the first feed point and the first ground point are located away from the first interval.

[0009] The adjustment module includes a first connection terminal, a second connection terminal, and a third connection terminal. The first connection terminal is connected to a first end of the first antenna radiator, the second connection terminal is connected to a first end of the second antenna radiator, and the third connection terminal is grounded.

[0010] The antenna radiator between the first feed point and the first ground point is used to operate in common-mode and differential-mode in the low-frequency band, and in 3 / 4 wavelength mode in the high-frequency band; the antenna radiator between the first feed point and the first interval is used to operate in half-wavelength mode in the mid-frequency band; the adjustment module is used to adjust the capacitance value between the first antenna radiator and the second antenna radiator, and to adjust the grounding capacitance value of the first antenna radiator, when the first antenna radiator and the second antenna radiator are operating in the low-frequency band, so as to adjust the energy distribution of the low-frequency band on the first antenna radiator and the second antenna radiator.

[0011] Thus, in the above-described scheme of this application, a first antenna radiator and a second antenna radiator are arranged along the first side of the electronic device, with a first gap between the first end of the first antenna radiator and the first end of the second antenna radiator; a first feed point is provided on the first antenna radiator, and a first ground point is provided on the second antenna radiator; both the first feed point and the first ground point are located away from the first gap; the adjustment module includes a first connection terminal, a second connection terminal, and a third connection terminal, the first connection terminal being connected to the first end of the first antenna radiator, the second connection terminal being connected to the first end of the second antenna radiator, and the third connection terminal being grounded; wherein, the antenna radiator between the first feed point and the first ground point is used for common-mode and differential-mode operation in the low-frequency band, and for operation in... The system includes a 3 / 4 wavelength mode for high-frequency bands; a half-wavelength mode for the antenna radiator between the first feed point and the first interval for operation in the mid-frequency band; and an adjustment module for adjusting the capacitance between the first and second antenna radiators and the grounding capacitance of the first antenna radiator when the first and second antenna radiators are operating in the low-frequency band. This adjustment is used to regulate the energy distribution of the low-frequency band on the first and second antenna radiators, enabling the electronic device to achieve high performance in the low-frequency, mid-frequency, and high-frequency bands even with limited antenna layout space. The adjustment module can also adjust the radiated energy distribution in the low-frequency band, allowing it to be adjusted according to environmental requirements. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of an electronic device according to an embodiment of this application;

[0013] Figure 2 express Figure 1A three-dimensional structural diagram of the structure shown;

[0014] Figure 3 One of the schematic diagrams showing the operating current of the electronic device according to an embodiment of this application;

[0015] Figure 4 A circuit diagram illustrating the adjustment module according to an embodiment of this application;

[0016] Figure 5 This is a schematic diagram showing the area division of an electronic device according to an embodiment of this application;

[0017] Figure 6 This diagram illustrates the antenna magnetic field distribution and 0mm SAR hotspot distribution on the first side of the adjustment module in the low-frequency band when it is in state one.

[0018] Figure 7 This diagram illustrates the antenna magnetic field distribution and 0mm SAR hotspot distribution on the first side of the adjustment module in the low-frequency band when it is in state two.

[0019] Figure 8 This diagram illustrates the antenna magnetic field distribution and 0mm SAR hotspot distribution on the first side of the adjustment module in the low-frequency band when it is in state three.

[0020] Figure 9 A circuit diagram illustrating the first tuning circuit of an embodiment of this application;

[0021] Figure 10 A second schematic diagram illustrating the operating current of the electronic device according to an embodiment of this application;

[0022] Figure 11 A schematic diagram showing the overall efficiency curves of the electronic device according to an embodiment of this application in various frequency bands;

[0023] Figure 12 A second schematic diagram illustrating the structure of an electronic device according to an embodiment of this application;

[0024] Figure 13 express Figure 12 A three-dimensional structural diagram of the structure shown;

[0025] Figure 14 A circuit diagram illustrating the filter module according to an embodiment of this application;

[0026] Figure 15 The third schematic diagram illustrating the operating current of the electronic device according to an embodiment of this application;

[0027] Figure 16 The third schematic diagram illustrating the structure of the electronic device according to an embodiment of this application;

[0028] Figure 17 Fourth schematic diagram illustrating the operating current of the electronic device according to an embodiment of this application;

[0029] Figure 18 Fourth schematic diagram illustrating the structure of the electronic device according to an embodiment of this application;

[0030] Figure 19 Fifth schematic diagram illustrating the operating current of the electronic device according to an embodiment of this application;

[0031] Figure 20 Fifth schematic diagram illustrating the structure of the electronic device according to an embodiment of this application;

[0032] Figure 21 The sixth schematic diagram illustrating the operating current of the electronic device according to an embodiment of this application;

[0033] Figure 22 This diagram shows the S11 curves of the electronic device according to an embodiment of this application at different low-frequency bands.

[0034] Figure 23 The graph shows the overall antenna efficiency of the electronic device according to the embodiments of this application in different low-frequency bands. Detailed Implementation

[0035] Exemplary embodiments of the present application will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this application will be thorough and complete, and will fully convey the scope of the present application to those skilled in the art.

[0036] like Figure 1 , Figure 2 and Figure 4 As shown, this application provides an electronic device, including: a first antenna radiator A1, a second antenna radiator A2, and an adjustment module 100;

[0037] The first antenna radiator A1 and the second antenna radiator A2 are disposed along the first side 1 of the electronic device, and there is a first interval SL2 between the first end 11 of the first antenna radiator A1 and the first end 21 of the second antenna radiator A2.

[0038] The first antenna radiator A1 is provided with a first feed point F1, and the second antenna radiator A2 is provided with a first ground point G1; both the first feed point F1 and the first ground point G1 are located away from the first interval SL2.

[0039] The adjustment module 100 includes a first connection terminal 101, a second connection terminal 102 and a third connection terminal 103. The first connection terminal 101 is connected to the first end 11 of the first antenna radiator A1, the second connection terminal 102 is connected to the first end 21 of the second antenna radiator A2, and the third connection terminal 103 is grounded.

[0040] The antenna radiator between the first feed point F1 and the first ground point G1 is used to operate in common-mode and differential-mode in the low-frequency band, and in 3 / 4 wavelength mode in the high-frequency band; the antenna radiator between the first feed point F1 and the first interval SL2 is used to operate in half-wavelength mode in the mid-frequency band; the adjustment module 100 is used to adjust the capacitance value between the first antenna radiator A1 and the second antenna radiator A2, and to adjust the grounding capacitance value of the first antenna radiator A1, when the first antenna radiator A1 and the second antenna radiator A2 are operating in the low-frequency band, so as to adjust the energy distribution of the low-frequency band on the first antenna radiator A1 and the second antenna radiator A2.

[0041] In this embodiment of the application, even with limited antenna layout space, the electronic device can still have high performance in the low-frequency band, mid-frequency band and high-frequency band respectively. The radiation energy distribution in the low-frequency band can be adjusted by adjusting the module, so that the radiation energy distribution in the low-frequency band can be adjusted according to environmental requirements.

[0042] In one specific implementation, a first gap SL1 and a first interval SL2 are provided on the first side 1 of the electronic device. A first antenna radiator A1 is formed between the first gap SL1 and the first interval SL2, which is also the antenna feed branch of the electronic device. A second antenna radiator A2 is formed between the first interval SL2 and the first grounding point G1, which is also the antenna parasitic branch of the electronic device.

[0043] In one specific implementation, the first feed point F1 being located away from the first interval SL2 can mean that the first feed point F1 is located at the second end 12 of the first antenna radiator A1, that is, the first feed point F1 is located at the end of the first antenna radiator A1 away from the first interval SL2. Alternatively, it can mean that the first feed point F1 is located at a distance from the first end 11 of the first antenna radiator A1, that is, the first feed point F1 is located at a distance from the first interval SL2 on the first antenna radiator A1. Here, "a distance" is greater than the distance from the first connection end 101 of the adjustment module 100 to the first interval SL2, and this application embodiment is not limited thereto. When the first gap SL1 is provided on the first side 1 of the electronic device, it can also mean that the first feed point F1 is located close to the first gap SL1, that is, the first feed point is located at the end of the first antenna radiator A1 close to the first gap SL1.

[0044] As one specific implementation, the first grounding point G1 is set away from the first interval SL2. This can mean that the first grounding point G1 is set at the second end 22 of the second antenna radiator A2, that is, the first grounding point G1 is set at the end of the second antenna radiator A2 away from the first interval SL2. Alternatively, it can mean that the first grounding point G1 is set at a distance from the first end 21 of the second antenna radiator A2, that is, the first grounding point G1 is set at a distance from the first interval SL2 on the second antenna radiator A2. Here, "a distance" is greater than the distance from the second connection end 102 of the adjustment module 100 to the first interval SL2. This application embodiment is not limited to this.

[0045] For example, in order to excite electronic devices to operate in low-frequency, mid-frequency, and high-frequency bands, the electrical length of the first antenna radiator A1... satisfy: and the electrical length of the second antenna radiator A2 satisfy: ,in, It is the wavelength corresponding to the resonant frequency of the first antenna radiator A1 and the second antenna radiator A2 operating in the low-frequency band. As a specific implementation, the length of the first antenna radiator A1 can be designed to be greater than 25mm; the length of the second antenna radiator A2 can be designed to be about 35mm. Too long a length will cause low-frequency energy to be concentrated too much in the parasitic region and will also easily cause clutter in the high-frequency band.

[0046] For the low-frequency band, in electrical length and electrical length Under the above conditions, the electrical length of the first antenna radiator A1 and the second antenna radiator A2 can be adjusted by adjusting the module 100. satisfy: Since the first feed point F1 is set far away from the first interval SL2, the antenna radiator between the first feed point F1 and the first ground point G1 can be used to operate in common mode and differential mode in the low frequency band, ensuring the radiation efficiency in the low frequency band.

[0047] For the mid-frequency band and the high-frequency band, In this case, Just right , It is the wavelength corresponding to the resonant frequency of the first antenna radiator A1 and the second antenna radiator A2 operating in the high-frequency band. The wavelength corresponds to the resonant frequency of the first antenna radiator A1 and the second antenna radiator A2 operating in the intermediate frequency band. Through environmental structural loading and adjustment module 100 loading control, the antenna radiators between the first feed point F1 and the first interval SL2 can operate in the optimal half-wavelength mode in both the intermediate frequency and high frequency bands. However, for the high frequency band, the coupling capacitance of the first interval SL2 is relatively strong, which will significantly excite the higher-order modes parasitic on the second antenna radiator A2 in the high frequency band. After merging with the current of the first antenna radiator A1, a 3 / 4 wavelength mode of the composite left-handed and right-handed transmission lines is formed. The antenna radiators between the first feed point F1 and the first ground point G1 can operate in the 3 / 4 wavelength mode of the composite left-handed and right-handed transmission line in the high-frequency band. However, there is a reverse current on the second antenna radiator A2, which is detrimental to the radiation efficiency. Therefore, for the high-frequency band, it is not desirable to couple too much to the second antenna radiator A2. It is necessary to adjust the module 100 to make the first antenna radiator A1 and the second antenna radiator A2 disconnected (capacitance value of 0) or adjust the inductance value between the first antenna radiator A1 and the second antenna radiator A2 by adjusting the module 100 to reduce the coupling.

[0048] like Figure 3 The diagram shows the operating currents generated by the antenna device in the low-frequency, mid-frequency, and high-frequency bands. In the low-frequency band mode, a time-slot common-mode and time-slot differential-mode are formed from the first feed point F1 through the first interval SL2 to the first ground point G1, including the first current I1, the second current I21, and the third current I22. Specifically, the first current I1 is the common-mode current path, and the second current I21 and the third current I22 form the differential-mode current path. In the mid-frequency band mode, a half-wavelength mode is formed from the first feed point F1 to the first interval SL2, including the fourth current I3. In the high-frequency mode, a three-quarter wavelength mode of the composite left- and right-handed transmission lines is formed from the first feed point F1 through the first interval SL2 to the first ground point G1, including the fifth current I41 and the sixth current I42. Specifically, the fifth current I41 and the sixth current I42 together represent the current path of the high-frequency mode.

[0049] Optionally, such as Figure 4 As shown, the adjustment module 100 includes: a first adjustment unit 110 and a second adjustment unit 120; wherein,

[0050] The first end 11 of the first antenna radiator A1 is connected to the first end 21 of the second antenna radiator A2 through the first adjustment unit 110, and the first end 11 of the first antenna radiator A1 is also grounded through the second adjustment unit 120.

[0051] The first adjustment unit 110 can be switched between multiple states, and when the first adjustment unit 110 is in different states, it corresponds to different capacitance values ​​between the first antenna radiator A1 and the second antenna radiator A2.

[0052] The second adjustment unit 120 can be switched between multiple states, and when the second adjustment unit 120 is in different states, it corresponds to different grounding capacitance values ​​of the first antenna radiator A1.

[0053] In this embodiment of the application, while ensuring low-frequency efficiency, the energy distribution of the low-frequency band can be adjusted by adjusting the module 100 to meet environmental requirements. Specifically, the energy distribution adjustment of the low-frequency band is completed by the coordinated work of the first adjustment unit 110 and the second adjustment unit 120. In addition, the first adjustment unit 110 and the second adjustment unit 120 are in different states for different frequency bands in the low-frequency band.

[0054] For example, for the first adjustment unit 110, by reducing the capacitance value between the first antenna radiator A1 and the second antenna radiator A2, the energy distribution on the second antenna radiator A2 in the low-frequency band parasitic segment can be reduced, allowing more energy to be distributed on the first antenna radiator A1. However, an excessively small capacitance will reduce efficiency due to weak excitation of the second antenna radiator A2. By increasing the capacitance value between the first antenna radiator A1 and the second antenna radiator A2 through the first adjustment unit 110, the energy excitation on the second antenna radiator A2 can be increased, allowing more low-frequency energy to be distributed on the second antenna radiator A2. Therefore, the first adjustment unit 110 can also adjust the capacitance value between the first antenna radiator A1 and the second antenna radiator A2 to a moderate value, achieving a balanced distribution of energy on the first antenna radiator A1 and the second antenna radiator A2.

[0055] For example, the second adjustment unit 120 can adjust different grounding capacitance values ​​of the first antenna radiator A1. When the grounding capacitance value of the first antenna radiator A1 is increased by the second adjustment unit 120, the radiating aperture of the first antenna radiator A1 in the low-frequency band can be increased, the impedance position of the first antenna radiator A1 in the case of a short first antenna radiator A1 can be improved, and the energy excitation of the first antenna radiator A1 in the low-frequency band can be enhanced, confining more energy to the first antenna radiator A1. Therefore, the larger the grounding capacitance value of the first antenna radiator A1, the stronger the low-frequency response of the first antenna radiator A1 can be. While the energy distribution is good, a larger capacitance will lead to certain device losses. Conversely, if the grounding capacitance value of the first antenna radiator A1 is reduced by the second adjustment unit 120, or if the first antenna radiator A1 is grounded through a capacitor by the second adjustment unit 120, and the first antenna radiator A1 is not grounded through a capacitor (e.g., grounded through an inductor or disconnected from the capacitor), the energy distribution on the second antenna radiator A2 will be stronger. Therefore, by adjusting the grounding capacitance value of the first antenna radiator A1 by the second adjustment unit 120, a more balanced energy distribution can be achieved between the first antenna radiator A1 and the second antenna radiator A2.

[0056] For example, in some cases, it is necessary to distribute the specific absorption rate (SAR) hotspot of the low-frequency antenna in the first antenna radiator A1, where the first antenna radiator A1 is the detectable area of ​​the SAR sensor. This can be achieved by reducing the capacitance value between the first antenna radiator A1 and the second antenna radiator A2 through the first adjustment unit 110 and increasing the grounding capacitance value of the first antenna radiator A1 through the second adjustment unit 120.

[0057] For example, in actual use of electronic devices, it is necessary to adapt to different scenarios. Multiple sensors can be combined to determine the scenario and adjust the antenna energy distribution in the low-frequency band, such as... Figure 5 As shown, when it is recognized that a hand is holding the middle of an electronic device (such as holding the middle of the electronic device while running or walking). Figure 5 If the antenna in the AR2 region is held, the first adjustment unit 110 can be controlled to decrease the capacitance value between the first antenna radiator A1 and the second antenna radiator A2, while the second adjustment unit 120 can be controlled to increase the grounding capacitance value of the first antenna radiator A1. This allows more antenna energy to be concentrated in the first antenna radiator A1 region, avoiding the interference of being held. Furthermore, if the top of the electronic device is detected to be affected by a person or other environmental factors (such as when making a call with the ear pressed against it), the interference can be mitigated. Figure 5If the antenna in the AR1 region is blocked, the capacitance value between the first antenna radiator A1 and the second antenna radiator A2 can be increased by the first adjustment unit 110, and the grounding capacitance value of the first antenna radiator A1 can be decreased by the second adjustment unit 120, or the grounding of the first antenna radiator A1 can be adjusted from being grounded through a capacitor to not being grounded through a capacitor (e.g., grounded through an inductor or disconnected from the capacitor). This allows more antenna energy to be distributed in the second antenna radiator A2 region, avoiding interference from the human body. Alternatively, depending on the scenario (e.g., in free space), the capacitance value between the first antenna radiator A1 and the second adjustment unit 120 can be adjusted to make the grounding capacitance value of the first antenna radiator A1 and the second antenna radiator A2 both moderate, resulting in a more balanced energy distribution between the first antenna radiator A1 and the second antenna radiator A2.

[0058] For example, such as Figures 6 to 8 As shown, Figures 6 to 8 The diagram illustrates the antenna magnetic field distribution and 0mm SAR hotspot distribution on the first side 1 of the electronic device when the adjustment module 100 is in different states in the low-frequency band. It can be seen that the energy distribution in the low-frequency band differs between the first antenna radiator A1 and the second antenna radiator A2 when the adjustment module 100 is in different states, thus adapting to different scenario requirements. For example, when walking or running causes the hand to hold the middle of the electronic device, the control adjustment module is in state one, and the energy distribution is adjusted accordingly. Figure 6 When the top of the electronic device is obstructed due to activities such as making a call, the control adjustment module 100 is in state three, and the energy distribution is adjusted accordingly. Figure 8 When in free space, to appropriately reduce material loss, the control adjustment module 100 is in state two, correspondingly adjusting the energy distribution to be more uniform. Figure 7 Furthermore, because the magnetic field distribution is different, the hot spot location of the SAR will also move between the first antenna radiator A1 and the second antenna radiator A2, and the hot spot location of the SAR can be designed according to actual needs.

[0059] Optionally, such as Figure 4 As shown, the first adjustment unit 110 is also used to adjust the grounding capacitance value of the first antenna radiator A1;

[0060] The first adjustment unit 110 includes: a first switch SW1, at least one first loading element 111, and at least one second loading element 112;

[0061] The first end 11 of the first antenna radiator A1 is connected to the second antenna radiator A2 through the first switch SW1 and at least one first loading element 111. The first end 11 of the first antenna radiator A1 is also grounded through the first switch SW1 and at least one second loading element 112.

[0062] The first switch SW1 can be switched between multiple conduction states. When the first switch SW1 is in different conduction states, the first antenna radiator A1 is connected to the second antenna radiator A2 through different first loading elements 111, and / or the first antenna radiator A1 is grounded through different second loading elements 112.

[0063] In this embodiment, the first loading element 111 may be capacitive, inductive, or resistive, and different first loading elements 111 may have different electrical characteristics (including capacitive, inductive, or resistive). The second loading element 112 may be capacitive, inductive, or resistive, and different second loading elements 112 may have different electrical characteristics (including capacitive, inductive, or resistive).

[0064] For example, such as Figure 4 As shown, the first loading element 111 includes a first capacitor element C1, a second capacitor element C2, and a third capacitor element C3. The first capacitor element C1, the second capacitor element C2, and the third capacitor element C3 are connected in parallel. Through the first switch SW1, at least one first loading element 111 can be connected between the first antenna radiator A1 and the second antenna radiator A2 to achieve different capacitance values ​​between the first antenna radiator A1 and the second antenna radiator A2. The second loading element 112 includes a grounding element R1. Through the first switch SW1, the first antenna radiator A1 can be connected to the grounding element R1 to achieve ground loading. The grounding element R1 can be a capacitor element or an inductor element.

[0065] Optionally, in one embodiment, when the first adjustment unit 110 includes a first switch SW1, at least one first loading element 111, and at least one second loading element 112, the adjustment module 100 may only include the first adjustment unit 110 and not the second adjustment unit 120. When the first antenna radiator A1 and the second antenna radiator A2 operate in the low-frequency band, the first antenna radiator A1 is connected to the second antenna radiator A2 through different first loading elements 111, which can adjust the capacitance value between the first antenna radiator A1 and the second antenna radiator A2. The first antenna radiator A1 is grounded through different second loading elements 112, which can adjust the grounding capacitance value of the first antenna radiator A1. It should be noted that the case where the adjustment module 100 includes the first adjustment unit 110 and the second adjustment unit 120 has a higher electrical isolation than the case where the adjustment module 100 only includes the first adjustment unit 110.

[0066] Optionally, in one embodiment, the first adjustment unit 110 includes: a first switch SW1 and at least one first loading element 111;

[0067] The first end of the first antenna radiator A1 is connected to the second antenna radiator A2 via a first switch SW1 and at least one first loading element 111;

[0068] When the first switch SW1 switches between multiple conduction states, the corresponding first loading element 111 is connected in series between the first antenna radiator A1 and the second antenna radiator A2, thereby realizing the switching of the first adjustment unit 110 between multiple states.

[0069] In this embodiment of the application, the first loading element 111 may be capacitive, inductive, or resistive, and different first loading elements 111 may have different electrical characteristics (including capacitive, inductive, or resistive characteristics).

[0070] Optionally, such as Figure 4 As shown, the second adjustment unit 120 includes: a second switch SW2 and at least one third loading element 121;

[0071] The first end 11 of the first antenna radiator A1 is grounded through the second switch SW2 and at least one third loading element 121;

[0072] The second switch SW2 can be switched between multiple conduction states. When the second switch SW2 is in different conduction states, the first antenna radiator A1 is grounded through different third loading elements 121.

[0073] In this embodiment, the third loading element 121 may be capacitive or inductive, and different third loading elements 121 may have different electrical characteristics (including capacitive or inductive characteristics).

[0074] For example, such as Figure 4 As shown, one end of the second adjustment unit 120 is connected to the second connection point P2 on the first end 11 of the first antenna radiator A1, and the other end of the second adjustment unit 120 is grounded through the third loading element 121. The third loading element 121 includes a first inductor L1, a second inductor L2, a fourth capacitor C4, and a fifth capacitor C5. The first inductor L1, the second inductor L2, the fourth capacitor C4, and the fifth capacitor C5 are connected in parallel with each other. Through the second switch SW2, the first antenna radiator A1 can achieve different grounding capacitance values ​​through at least one third loading element 121.

[0075] Optionally, such as Figure 1-3 as well as Figure 9 As shown, it also includes: a first tuning circuit M1;

[0076] The first terminal 104 of the first tuning circuit M1 is connected to the first feed source F01, the second terminal 105 of the first tuning circuit M1 is connected to the first feed point F1, and the third segment 106 of the first tuning circuit M1 is grounded; the first tuning circuit M1 can be switched between multiple states, and the impedance of the first antenna radiator A1 is different when the first tuning circuit M1 is in different states.

[0077] Optionally, the first tuning circuit M1 includes a third adjustment unit 130, at least one fourth loading element 131 and at least one fifth loading element 132, wherein the third adjustment unit 130 includes a third switch SW3 and at least one sixth loading element 133;

[0078] The first feed point F1 is connected to the first feed source F01 through the third adjustment unit 130, at least one fourth loading element 131 and at least one fifth loading element 132. The first feed point F1 is grounded through at least one fourth loading element 131 and the third adjustment unit 130. The first feed source F01 is grounded through at least one fifth loading element 132 and the third adjustment unit 130.

[0079] The third switch SW3 can be switched between multiple conduction states. When the third switch SW3 is in different conduction states, the first feed point F1 is connected to the first feed source F01 through different fifth loading elements 132, and / or the first feed point F1 and the first feed source F01 are grounded through different sixth loading elements 133.

[0080] In this embodiment, the fourth loading element 131 can be capacitive, inductive, or resistive, and different fourth loading elements 131 can exhibit different electrical characteristics (including capacitive, inductive, or resistive characteristics). The fifth loading element 132 can be capacitive, inductive, or resistive, and different fifth loading elements 132 can exhibit different electrical characteristics (including capacitive, inductive, or resistive characteristics). The sixth loading element 133 can be capacitive, inductive, or resistive, and different sixth loading elements 133 can exhibit different electrical characteristics (including capacitive, inductive, or resistive characteristics).

[0081] For example, such as Figure 9 As shown, the fourth loading element 131 includes a second resistor R2, the fifth loading element 132 includes a sixth capacitor element C6 and a seventh capacitor element C7, and the sixth loading element 133 includes an eighth capacitor element C8, a ninth capacitor element C9, and a third inductor element L3, wherein the eighth capacitor element C8, the ninth capacitor element C9, and the third inductor element L3 are connected in parallel; the second resistor R2 is the initial impedance adjustment position near the first feed point F1, the sixth capacitor element C6 and the seventh capacitor element C7 are used to adjust the initial impedance of a part of the frequency band to the desired position, the third switch SW3 can switch the seventh capacitor element C7 to be connected and not connected to realize the adjustment of the series capacitance value, the third switch SW3 can switch at least one of the eighth capacitor element C8, the ninth capacitor element C9, and the third inductor element L3 to realize the impedance adjustment to the vicinity of the first quadrant.

[0082] Optionally, such as Figure 1 and Figure 2 As shown, it also includes: a coupling tongue SP1;

[0083] The coupling tongue SP1 is disposed at the first connection point P1 on the first antenna radiator A1, and a first coupling interval SL5 is formed between the coupling tongue SP1 and the ground G0; the first connection point P1 is disposed away from the first interval SL2, and the distance from the first connection point P1 to the first interval SL2 is less than the distance from the first feed point F1 to the first interval SL2.

[0084] The first antenna radiator A1 has a first gap SL1 at its second end. The antenna radiator between the first connection point P1 and the first gap SL1 is used to operate in the 1 / 4 wavelength mode of the N78 frequency band. The antenna radiator between the second connection point P2 and the first ground point G1 is used to operate in the half wavelength mode of the N78 frequency band. The antenna radiator between the first gap SL1 and the first ground point G1 is used to operate in the higher order mode of the N79 frequency band.

[0085] Wherein, the second connection point P2 is the connection point where the first antenna radiator A1 connects to the adjustment module 100.

[0086] In this embodiment, the coupling tongue SP1 and the ground plane G0 form a first coupling interval SL5. This first coupling interval SL5 provides a distributed ground loop for specific sub-bands in the mid-to-high frequency band (such as the N78 and N79 bands). Under the same coupling area and coupling spacing, the first coupling interval SL5 is equivalent to a large capacitor for specific sub-bands in the mid-to-high frequency band and a small capacitor for low frequency bands. Since low frequencies are close to areas with strong magnetic fields, the loading of the small capacitor has a very weak impact on low frequency bands. Therefore, the first coupling interval SL5 formed by the coupling tongue SP1 and the ground plane G0 does not affect the operation of the antenna in the low frequency band, and allows specific sub-bands in the mid-to-high frequency band to obtain a ground loop path to excite a better radiation mode for specific sub-bands in the mid-to-high frequency band.

[0087] As a specific implementation, the first connection point P1 is set away from the first interval SL2. This can mean that the first feed point F1 is set at the second end 12 of the first antenna radiator A1, that is, the first connection point P1 is set at the end of the first antenna radiator A1 away from the first interval SL2. Alternatively, it can mean that the first feed point F1 is set at a distance from the first end 11 of the first antenna radiator A1, that is, the first feed point F1 is set at a distance from the first interval SL2 on the first antenna radiator A1. Here, "a distance" is less than the distance from the first feed point F1 to the first interval SL2. This application embodiment is not limited to this.

[0088] In one specific implementation, the distance from the first connection point P1 to the first interval SL2 is less than the distance from the first feed point F1 to the first interval SL2, and the distance between the first connection point P1 and the first feed point F1 is approximately 3 mm.

[0089] For example, when the coupling tongue SP1 forms a first coupling interval SL5 with the floor G0, the positional relationship between the coupling tongue SP1 and the floor G0 includes any of the following:

[0090] The coupling tongue SP1 and the floor G0 are located on the same horizontal plane, and there is a first coupling interval SL5 between the coupling tongue SP1 and the floor G0.

[0091] The coupling tongue SP1 and the floor G0 are located on different horizontal planes. This can also be understood as the coupling tongue SP1 and the floor G0 having a certain height difference in the Z-axis direction, and the coupling tongue SP1 and the floor G0 overlapping in the Z-axis direction. There is a first coupling interval SL5 between the coupling tongue SP1 and the floor G0.

[0092] The coupling tongue SP1 and the floor G0 are located on different horizontal planes. This can also be understood as the coupling tongue SP1 and the floor G0 having a certain height difference in the Z-axis direction, and the coupling tongue SP1 and the floor G0 not overlapping in the Z-axis direction. There is a first coupling interval SL5 between the coupling tongue SP1 and the floor G0.

[0093] Among them, the horizontal plane refers to Figure 1 The plane formed by the X-axis and Y-axis, with the Z-axis perpendicular to both the X-axis and Y-axis.

[0094] Based on this, it can be seen that different positional relationships between the coupling tongue SP1 and the ground plane G0 result in different first coupling intervals SL5. Therefore, different first coupling intervals SL5 will have different excitation levels for specific sub-frequency bands in the mid-to-high frequency band. In practical applications, the positional relationship between the coupling tongue SP1 and the ground plane G0 can be determined according to the actual energy requirements and the size of the antenna layout space. This application does not limit this.

[0095] As a specific implementation method, such as Figure 2 As shown, the coupling tongue SP1 and the floor G0 are located on different horizontal planes. The height of the coupling tongue SP1 in the Z-axis direction is higher than that of the floor G0 in the Z-axis direction. The coupling tongue SP1 and the floor G0 overlap in the Z-axis direction. There is a first coupling interval SL5 between the coupling tongue SP1 and the floor G0. In this case, the coupling tongue SP1 and the floor G0 can form a good coupling and also effectively save layout space.

[0096] For example, to excite electronic devices operating in the N78 and N79 frequency bands, this application uses a coupling tongue SP1 to load the distributed capacitance of the N78 and N79 frequency bands back to ground. This allows the antenna radiator between the first connection point P1 and the first gap SL1 to operate in a 1 / 4 wavelength mode in the N78 frequency band, serving as the radiation basis for this band. Higher-order modes are coupled from the first connection point P1 through the first gap SL1 to the first ground point G1 to improve antenna impedance. Specifically, when coupling higher-order modes from the first connection point P1 through the first gap SL1 to the first ground point G1 to improve antenna impedance, the capacitance between the first antenna radiator A1 and the second antenna radiator A2 needs to be adjusted by adjusting module 100 to increase the coupling and adjust the higher-order modes to a position slightly higher than the current operating frequency band, thus improving impedance without affecting radiation efficiency.

[0097] like Figure 10The diagram shows the operating current of the electronic device excited in the N78 and N79 frequency bands. The N78 frequency band consists of two modes: a quarter-wavelength mode from the coupling tongue SP1 to the second end of the first antenna radiator, with the operating current including the seventh current I5; and a composite slot half-wavelength mode from the second connection point P2 through the first gap SL1 to the second antenna radiator A2, and then back to ground from the first ground point G1, with the operating current including the eighth current I61 and the ninth current I62. The eighth current I61 and the ninth current I62 constitute the current path of this mode. The operating current of the N79 frequency band is a higher-order mode composed of the tenth current I71, the eleventh current I72, the twelfth current I73, the thirteenth current I74, and the fourteenth current I75.

[0098] like Figures 1 to 10 As shown, this application also provides a specific embodiment to illustrate the circuit structure when the electronic device includes a first tuning circuit M1 and a coupling tongue SP1, and the electronic device operates in different frequency bands or in different states in the low-frequency band. Figure 4 and Figure 9 As shown in Table 1 below, the switching states of the first switch SW1, the second switch SW2 in the adjustment module 100, and the third switch SW3 in the first tuning circuit M1 are respectively:

[0099] Table 1: Switching states of electronic devices operating in different frequency bands or in different states in the low frequency band

[0100]

[0101] Here, OFF indicates that the switch is not connected to the component, and ON indicates that the switch is connected to the component. State 1 corresponds to the state where the middle part of the electronic device is blocked, and the energy distribution in the low-frequency band is as follows: Figure 6 As shown, state 2 corresponds to the state where the electronic device is in free space, with appropriate reduction of material loss. The corresponding energy distribution in the low-frequency band is as follows: Figure 7 As shown, state 3 corresponds to the state where the top of the electronic device is blocked, and the energy distribution in the low-frequency band is as follows: Figure 8 As shown.

[0102] It should be noted that the capacitance values ​​of the different capacitors (C1, C2, C3, C4, C5, C7, C8, C9) in Table 1 can be the same or different, and the inductance values ​​of the different inductors (L1, L2, L3) in Table 1 can be the same or different. Different frequency bands can be tuned by turning on different capacitors or inductors. For example, taking the N78 frequency band as an example, the first switch SW1 needs to turn on C3, and the second switch SW2 needs to turn on C4 and C5. This is just to express that both the first switch SW1 and the second switch SW2 need to turn on the capacitors. As for the size of the capacitors, this application does not limit it, as long as it meets the actual needs.

[0103] This application also provides a specific embodiment, such as Figure 11 As shown, when the electronic device includes the coupling tongue SP1, the overall efficiency curves for each frequency band show that this embodiment can achieve better antenna efficiency when operating in each frequency band, achieving better antenna efficiency while satisfying adjustable energy distribution and reducing the antenna feed tongue.

[0104] Optionally, such as Figure 12 and 13 As shown, the second antenna radiator A2 is also provided with a second feed point F2;

[0105] The second feed point F2 is connected to the adjustment module 100, and the second feed point F2 is also connected to the feed source F02 through the filter module M2; the filter module M2 is used to filter the signal of the first frequency band, wherein the first frequency band is less than or equal to 3GHz;

[0106] The antenna radiator from the second feed point F2 through the first interval SL2 to the second connection point P2 is used to operate in common mode and differential mode in the N79 frequency band, and the antenna radiator from the second connection point P2 through the first interval SL2 to the first ground point G1 is used to operate in higher-order mode in the N78 frequency band. The second connection point P2 is the connection point where the first antenna radiator A1 connects to the adjustment module 100.

[0107] In this embodiment, feed source F02 serves as a feed source for both the N78 and N79 frequency bands. The first feed source F01 is not used as a feed source for the N78 and N79 frequency bands. Since the second feed point F2 is connected to the adjustment module 100, it can return to ground through the adjustment module 100. A filter module M2 is also provided between the second feed point and feed source F02 to filter the signal of the first frequency band.

[0108] In one specific implementation, the fifth connection point P5 of the second antenna radiator A2 is respectively set at the fifth connection point P5 with the feed source F02 and the adjustment module 100, that is, the second feed point F2.

[0109] As a specific implementation method, such as Figure 14 As shown, the first terminal 107 of the filter module M2 is connected to the feed source F02, the second terminal 108 of the filter module M2 is connected to the second feed point F2, and the third terminal 109 of the filter module M2 is grounded. The filter module M2 constructs a high-pass, low-impedance filter to solve the isolation problem between the first feed source F01 and the feed source F02 in the first frequency band. Specifically, the filter module M2 includes a fourth inductor L4, a tenth capacitor C10, and an eleventh capacitor C11. The second feed point F2 is connected to the eleventh capacitor C11 in series, then to the fourth inductor L4 in parallel, and then to the tenth capacitor C10 in series to achieve connection with the feed source F02.

[0110] Optionally, such as Figure 12 and Figure 13 As shown, it also includes: a coupling tongue SP1;

[0111] The coupling tongue SP1 is disposed at the third connection point P3 on the first antenna radiator A1, and a first coupling interval SL5 is formed between the coupling tongue SP1 and the ground G0.

[0112] The third connection point P3 is located close to the first interval SL2, and the distance from the third connection point P3 to the first interval SL2 is greater than the distance from the second connection point P2 to the first interval SL2.

[0113] The antenna radiator from the second feed point F2 through the first interval SL2 to the third connection point P3 is used to operate in common mode and differential mode in the N79 frequency band, and the antenna radiator from the second connection point P2 or from the third connection point P3 through the first interval SL2 to the first ground point G1 is used to operate in higher-order mode in the N78 frequency band.

[0114] In this embodiment, if the N78 and N79 frequency bands are directly grounded through the adjustment module 100, the first antenna radiator A1 needs to have a certain grounding capacitance value through the adjustment module 100. However, some frequency bands fed by the first feed source F01 do not require the first antenna radiator A1 to have a certain grounding capacitance value. Therefore, in order to ensure better coexistence of the above-mentioned frequency bands with the N78 and N79 frequency bands, a coupling tongue SP1 is introduced. The grounding path of the N78 and N79 frequency bands is constructed through the coupling tongue SP1, ensuring that high-performance coexistence of multiple frequency bands can be achieved even when the first antenna radiator A1 is not connected to the grounding capacitance value.

[0115] As a specific implementation, in order to ensure that the N78 and N79 frequency bands have better ground return performance, the coupling tongue SP1 is set at the third connection point P3 on the first antenna radiator A1, and the third connection point P3 is set close to the first interval SL2.

[0116] The third connection point P3 being located near the first interval SL2 can mean that the third connection point P3 is located at the first end 11 of the first antenna radiator A1, that is, the third connection point P3 is located at the end of the first antenna radiator A1 near the first interval SL2. Alternatively, it can mean that the third connection point P3 is located at a distance from the first end 11 of the first antenna radiator A1, that is, the third connection point P3 is located at a distance from the first interval SL2 on the first antenna radiator A1. Here, "a distance" is greater than the distance from the first connection end 101 of the adjustment module 100 to the first interval SL2. This embodiment of the application is not limited to this.

[0117] Optionally, such as Figure 12 and Figure 13 As shown, it also includes: a T-shaped loading structure A4; wherein,

[0118] The loading structure A4 includes a first metal plate A41 and a second metal plate A42. The first metal plate A41 is disposed opposite to the second antenna radiator A2, and the first metal plate A41 is connected to the second antenna radiator A2 through the second metal plate A42. The first metal plate A41 is disposed opposite to the metal plate A3 in the electronic device to form a distributed capacitor.

[0119] The antenna radiator between the fourth connection point P4 and the third connection point P3 is used to operate in common-mode and differential-mode in the N78 frequency band. The fourth connection point P4 is the connection point on the second antenna radiator A2 that connects to the second metal plate A42.

[0120] In this embodiment, since the feed source F02 feeds into the second antenna radiator A2, and since the second antenna radiator A2 is relatively long, it will generate higher-order modes from the second feed point F2 to the first ground point G1, affecting the efficiency of the N78 and N79 frequencies. Therefore, a T-shaped loading structure A4 can be introduced. The T-shaped loading structure A4 can avoid the loading structure A4 being too long and generating new resonances in the N78 and / or N79 frequency bands, thus affecting its efficiency.

[0121] The loading structure A4 is a metal structure and is connected to the second antenna radiator A2. Specifically, the first metal plate A41 in the loading structure A4 is positioned opposite to the second antenna radiator A2 and the metal plate in the electronic device. The first metal plate A41 is connected to the second antenna radiator A2 through the second metal plate A42. Based on the above structure, the first metal plate A41 and the metal plate A3 form a second coupling interval SL3. The distributed capacitance generated by the second coupling interval SL3 constructs a return path to ground for the N78 and N79 frequency bands.

[0122] In one specific implementation, the first metal plate A41 and the second antenna radiator A2 are arranged opposite to each other, including: the first metal plate A41 and the second antenna radiator A2 are arranged parallel to each other.

[0123] In one specific implementation, the metal plate A3 can be a solar panel, a solar wall metal plate, or other metal structures, and the metal plate A3 is connected to the floor G0.

[0124] In one specific implementation, the distance between the loading structure A4 and the first interval SL2 is greater than the distance between the second feed point F2 and the first interval SL2. Specifically, the distance between the loading structure A4 and the second feed point F2 can be set to 3mm.

[0125] like Figure 15 As shown in the diagram, this embodiment illustrates the operating currents generated by the antenna device in the N78 and N79 frequency bands. The operating mode in the N78 frequency band is as follows: the current flows upward from the loading structure A4 through the first interval SL2 to the first antenna radiator A1, and then returns to ground via the common-mode and differential-mode modes through the adjustment module 100 or the coupling tongue SP1. Specifically, the fifteenth current I78 in the diagram represents the common-mode current path; the differential-mode current path is the same as the common-mode current path, only the currents are reversed in the middle. The operating mode in the N79 frequency band is as follows: the current flows upward from the second feed point F2 through the first interval SL2 to the first antenna radiator A1, and then returns to ground via the adjustment module 100 or the coupling tongue SP1 in both common-mode and differential-mode modes. Specifically, the sixteenth current I79 in the diagram represents the common-mode current path; the differential-mode current path is the same as the common-mode current path, only the currents are reversed in the middle. Since the current paths of the N78 and N79 frequency bands are concentrated only near the first interval SL2 and not near the first gap SL1, there is antenna mode isolation from the first feed point F1, and no additional processing to improve the isolation is required.

[0126] Optionally, such as Figure 16 As shown, the second antenna radiator A2 is also provided with a second grounding point G2;

[0127] The distance from the second grounding point G2 to the first interval SL2 is greater than the distance from the first grounding point G1 to the first interval SL2;

[0128] Both the first grounding point G1 and the second grounding point G2 are connected to the ground plane G0. The first part of the antenna radiator A5 between the first grounding point G1 and the second grounding point G2 forms a first slot structure antenna. The first part of the antenna radiator A5 is also provided with a first tuning module 200.

[0129] In this embodiment, through the first slot structure antenna, energy in the low-frequency band can be coupled through the magnetic field at the first grounding point G1, so that the first part of the antenna radiator A5 operates in a half-wavelength mode in the low-frequency band, such as... Figure 17 As shown, the operating current of the half-wavelength mode includes the seventeenth current I81 and the eighteenth current I82; the first tuning module 200 is used to adjust the resonant position of the half-wavelength mode, thereby realizing the energy distribution adjustment in the low-frequency band.

[0130] For example, the first tuning module 200 includes a fourth adjustment unit that can be switched between multiple states. When the fourth adjustment unit is in different states, the energy of the low-frequency band has different intensities in different regions of the first antenna radiator A1, the second antenna radiator A2, and the first partial antenna radiator A5.

[0131] As a specific implementation method, such as Figure 16 As shown, both the first grounding point G1 and the second grounding point G2 are connected to the metal plate A3, which is connected to the floor G0. The metal plate A3 can be a solar panel, a solar wall metal plate, or other metal structures.

[0132] As a specific implementation method, since the first grounding point G1 is a magnetic field coupling point, the width of the return structure of the first grounding point G1 can be designed to be narrower, for example, set to about 1mm, to ensure that there is a certain amount of inductance to help magnetic field coupling, while ensuring that the inductance is not too large and thus affects the original modes of each frequency band.

[0133] Optionally, such as Figure 18 As shown, the second end of the second antenna radiator A2 is provided with a second slit SL4;

[0134] A second tuning module 300 is also provided on the second part of the antenna radiator A6 between the second grounding point G2 and the second gap SL4.

[0135] In this embodiment, in addition to the first antenna radiator A5, a second antenna radiator A6 is added. The energy in the low-frequency band can be coupled through the magnetic field at the first grounding point G1, causing the second antenna radiator A6 to operate in a 1 / 4 wavelength mode in the low-frequency band. A capacitor is then applied to the low-frequency band through the second tuning module 300. Figure 19 As shown, the operating current of the 1 / 4 wavelength mode in this low-frequency band includes the nineteenth current I9.

[0136] As a specific implementation, the energy in the low-frequency band can be coupled by the magnetic field at the first grounding point G1, so that the second part of the antenna radiator A6 operates in the 1 / 4 wavelength mode of the low-frequency band, and a capacitor of about 2-3pF is loaded to the low-frequency band through the second tuning module 300.

[0137] For example, the second tuning module 300 includes a fifth adjustment unit that can be switched between multiple states. When the fifth adjustment unit is in different states, the energy of the low-frequency band is different in different regions of the first antenna radiator A1, the second antenna radiator A2, the first partial antenna radiator A5, and the second partial antenna radiator A6.

[0138] As a specific implementation method, since the second grounding point G2 is a magnetic field coupling point, the width of the return structure of the second grounding point G2 can be designed to be narrower, for example, set to about 1mm, to ensure that there is a certain amount of inductance to help magnetic field coupling, while ensuring that the inductance is not too large and thus affects the original modes of each frequency band.

[0139] In this embodiment, the magnetic field distribution in the low-frequency band can be adjusted by adjusting at least one of the adjustment module 100, the first tuning module 200, and the second tuning module 300, thereby adjusting the hotspot distribution of SAR and adjusting the SAR value to better adapt to the needs of the scenario. Specifically, the energy is adjusted to other areas of the mobile phone based on which areas of the electronic device are more affected by the external environment. For example, in scenarios where the upper part of the electronic device is more affected by the external environment, the energy is adjusted to the bottom of the electronic device; in scenarios where the bottom and / or middle of the electronic device is more affected by the external environment, the energy is adjusted to the upper part of the electronic device.

[0140] Optionally, such as Figure 20 As shown, the first grounding point G1 is grounded through inductor A7;

[0141] The first part of the antenna radiator A5 is used to operate in half-wavelength mode in the GPS frequency band, and the second part of the antenna radiator A6 is used to operate in quarter-wavelength mode in the GPS frequency band.

[0142] In this embodiment, the first feed source F01 can also serve as a feed source for the Global Positioning System (GPS) frequency band. By setting a first grounding point G1 and grounding it through inductor A7, the magnetic field coupling from the first grounding point G1 to the first antenna radiator A5 and the second antenna radiator A6 is enhanced. This embodiment can reduce the space occupied by the GPS L5 frequency band feed structure. In cases where there are many antennas in the upper half of the electronic device, it can also avoid competing for structural space with a large number of upper half antennas. It can also avoid the need for additional coaxial cables when designing GPS L5 to feed in the bottom area of ​​the electronic device.

[0143] like Figure 21 The diagram shows the operating current of the antenna device in the low-frequency band and the GPS L5 band in this embodiment. In the low-frequency band mode, a common-mode and differential-mode are formed from the first feed point F1 through the first interval SL2 to the first ground point G1, including a first current I1, a second current I21, and a third current I22. Specifically, the first current I1 is the common-mode current path, and the second current I21 and the third current I22 form the differential-mode current path. In the GPS band, dual modes work together. The first mode is a half-wavelength mode of the GPS L5 band from the first ground point G1 to the second ground point G2, including the twentieth current I101 and the twenty-first current I102. Its mode frequency position is adjusted by the device value loaded to ground by the first tuning module 200. The second mode is a quarter-wavelength mode of the GPS L5 band from the second ground point G2 to the second gap SL4, including the twenty-second current I11. Its mode frequency position is adjusted by the device value loaded to ground by the second tuning module 300.

[0144] As a specific implementation, the first tuning module 200 is a third tuning circuit, and the second tuning module 300 is a fourth tuning circuit. The frequency position of the half-wavelength mode of the GPS L5 band from the first ground point G1 to the second ground point G2 is adjusted by the device value loaded to ground by the third tuning circuit, and the frequency position of the quarter-wavelength mode of the GPS L5 band from the second ground point G2 to the second gap SL4 is adjusted by the device value loaded to ground by the third tuning circuit.

[0145] In one specific implementation, inductor A7 can be a distributed inductor. One end of inductor A7 is connected to the first grounding point G1, and the other end of inductor A7 extends towards the inside of the electronic device and is bent to a certain length before being connected to the ground plane G0. Specifically, the structural thickness of inductor A7 can be set to about 2mm, and the length can be set to about 5-10mm.

[0146] As a specific implementation, the inductor A7 can also be soldered onto a side plate or an FPC, wherein the FPC is soldered between the first side 1 and the ground plane G0.

[0147] like Figure 22 The figure shows the reflection coefficient (S11) curves of the electronic device in different low-frequency bands under this embodiment. The dashed box J1 is a schematic diagram of the working frequency band range of GPS L5. It can be seen from the figure that the GPS L5 band has dual resonance, indicating that there are two working modes. When switching low-frequency bands, the S11 of the GPS L5 band changes, but it always maintains good S11 characteristics within the GPS L5 band.

[0148] like Figure 23 As shown, this is a graph of the overall antenna efficiency of the electronic device in different low-frequency bands under this embodiment. The dashed box J2 is a schematic diagram of the working frequency range of the GPS L5 band. It can be seen from the efficiency curve that while the low frequency has good working efficiency, the GPS L5 band also maintains good efficiency during the low-frequency band switching process. Moreover, the GPS L5 band has a very wide bandwidth due to its dual-mode coverage, which can ensure its high consistency and stability.

[0149] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0150] Although preferred embodiments of the present application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the embodiments of the present application.

[0151] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.

[0152] The above describes the preferred embodiments of this application. It should be noted that those skilled in the art can make several improvements and modifications without departing from the principles described in this application, and these improvements and modifications are also within the protection scope of this application.

Claims

1. An electronic device, characterized in that, include: First antenna radiator, second antenna radiator and modulation module; The first antenna radiator and the second antenna radiator are disposed along a first side of the electronic device, and there is a first gap between the first end of the first antenna radiator and the first end of the second antenna radiator. The first antenna radiator is provided with a first feed point, and the second antenna radiator is provided with a first ground point; both the first feed point and the first ground point are located away from the first interval. The adjustment module includes a first connection terminal, a second connection terminal, and a third connection terminal. The first connection terminal is connected to a first end of the first antenna radiator, the second connection terminal is connected to a first end of the second antenna radiator, and the third connection terminal is grounded. The antenna radiator between the first feed point and the first ground point is used to operate in common-mode and differential-mode in the low-frequency band, and in 3 / 4 wavelength mode in the high-frequency band; the antenna radiator between the first feed point and the first interval is used to operate in half-wavelength mode in the mid-frequency band; the adjustment module is used to adjust the capacitance value between the first antenna radiator and the second antenna radiator, and to adjust the grounding capacitance value of the first antenna radiator, when the first antenna radiator and the second antenna radiator are operating in the low-frequency band, so as to adjust the energy distribution of the low-frequency band on the first antenna radiator and the second antenna radiator.

2. The electronic device according to claim 1, characterized in that, The adjustment module includes: a first adjustment unit and a second adjustment unit; wherein... The first end of the first antenna radiator is connected to the first end of the second antenna radiator through the first adjustment unit, and the first end of the first antenna radiator is also grounded through the second adjustment unit. The first adjustment unit can be switched between multiple states, and when the first adjustment unit is in different states, it corresponds to different capacitance values ​​between the first antenna radiator and the second antenna radiator. The second adjustment unit can be switched between multiple states, and when the second adjustment unit is in different states, it corresponds to different grounding capacitance values ​​of the first antenna radiator.

3. The electronic device according to claim 2, characterized in that, The first adjustment unit is also used to adjust the grounding capacitance value of the first antenna radiator; The first adjustment unit includes: a first switch, at least one first loading element, and at least one second loading element; The first end of the first antenna radiator is connected to the second antenna radiator through a first switch and at least one first loading element, and the first end of the first antenna radiator is also grounded through a first switch and at least one second loading element; The first switch is switchable between multiple conduction states. When the first adjustment unit is in different conduction states, the first antenna radiator is connected to the second antenna radiator through different first loading elements, and / or the first antenna radiator is grounded through different second loading elements.

4. The electronic device according to any one of claims 1 to 3, characterized in that, Also includes: Coupler tongue; The coupling tongue is disposed at a first connection point on the first antenna radiator, and a first coupling interval is formed between the coupling tongue and the ground. The first connection point is located far from the first interval, and the distance from the first connection point to the first interval is less than the distance from the first power supply point to the first interval; The first antenna radiator has a first slit at its second end. The antenna radiator between the first connection point and the first slit is used to operate in the 1 / 4 wavelength mode of the N78 frequency band. The antenna radiator between the second connection point and the first ground point is used to operate in the half wavelength mode of the N78 frequency band. The antenna radiator between the first slit and the first ground point is used to operate in the higher-order mode of the N79 frequency band. The second connection point is the connection point where the first antenna radiator connects to the adjustment module.

5. The electronic device according to any one of claims 1 to 3, characterized in that, The second antenna radiator is also provided with a second feed point; The second feed point is connected to the adjustment module, and the second feed point is also connected to the feed source through a filter module; the filter module is used to filter signals in the first frequency band, wherein the first frequency band is less than or equal to 3GHz; The antenna radiator from the second feed point through the first interval to the second connection point is used to operate in common-mode and differential-mode in the N79 frequency band, and the antenna radiator from the second connection point through the first interval to the first ground point is used to operate in higher-order mode in the N78 frequency band. The second connection point is the connection point where the first antenna radiator connects to the adjustment module.

6. The electronic device according to claim 5, characterized in that, Also includes: Coupler tongue; The coupling tongue is disposed at the third connection point on the first antenna radiator, and a first coupling interval is formed between the coupling tongue and the ground. The third connection point is located close to the first interval, and the distance from the third connection point to the first interval is greater than the distance from the second connection point to the first interval; The antenna radiator extending from the second feed point through the first interval to the third connection point is used to operate in common-mode and differential-mode in the N79 frequency band, while the antenna radiator extending from the second connection point or from the third connection point through the first interval to the first ground point is used to operate in higher-order mode in the N78 frequency band.

7. The electronic device according to claim 6, characterized in that, Also includes: A T-shaped loading structure; wherein, The loading structure includes a first metal plate and a second metal plate. The first metal plate is disposed opposite to the second antenna radiator and is connected to the second antenna radiator through the second metal plate. The first metal plate is disposed opposite to the metal plate in the electronic device to form a distributed capacitance. The antenna radiator between the fourth connection point and the third connection point is used to operate in common-mode and differential-mode in the N78 frequency band. The fourth connection point is the connection point on the second antenna radiator that connects to the second metal plate.

8. The electronic device according to any one of claims 1 to 3, characterized in that, The second antenna radiator is also provided with a second grounding point; The distance from the second grounding point to the first interval is greater than the distance from the first grounding point to the first interval; Both the first grounding point and the second grounding point are connected to the ground. The first part of the antenna radiator between the first grounding point and the second grounding point forms a first slot structure antenna. The first part of the antenna radiator is also provided with a first tuning module.

9. The electronic device according to claim 8, characterized in that, The second end of the second antenna radiator is provided with a second slit; A second tuning module is also provided on the second part of the antenna radiator between the second grounding point and the second gap.

10. The electronic device according to claim 9, characterized in that, The first part of the antenna radiator is used to operate in half-wavelength mode in the low-frequency band, and the second part of the antenna radiator is used to operate in quarter-wavelength mode in the low-frequency band.

11. The electronic device according to claim 9, characterized in that, The first grounding point is grounded through an inductor; The first part of the antenna radiator is used to operate in half-wavelength mode in the GPS frequency band, and the second part of the antenna radiator is used to operate in quarter-wavelength mode in the Global Positioning System (GPS) frequency band.

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