Electronic device

Abstract

The invention discloses electronic equipment, and relates to the technical field of electronic products. The electronic equipment comprises a decoration ring, the area where the decoration ring is located is an annular radiation area, and the working frequency band of the annular radiation area comprises a low frequency band and a GPS L5 frequency band; the annular radiation area comprises a first current mode and a second current mode, and the first current mode and the second current mode are orthogonal; one of the first current mode and the second current mode corresponds to the low frequency band, and the other one of the first current mode and the second current mode corresponds to the GPS L5 frequency band.

Description

Technical Field

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

[0002] With the advancement of communication technology, users are increasingly demanding the mobile communication capabilities of their mobile terminals. For example, they demand faster and faster communication rates and ensure good communication capabilities in increasingly extreme scenarios. Therefore, in related technologies, to improve transmission rates and ensure performance in more scenarios, more RF channels and more antennas have been introduced into the design of mobile terminals. For example, four low-frequency antenna channels and six N41 / N78 antenna channels have been introduced. However, the size of the mobile terminal itself remains basically unchanged, while the functions of each module are increasingly integrated, which will lead to a serious contradiction between the increasing number of antennas and the decreasing antenna space. This contradiction is particularly prominent in the design of low-frequency antennas and Global Positioning System (GPS) L5 antennas. Because the low-frequency band and the GPS L5 band have similar frequency ranges, if the low-frequency antenna and the GPS L5 antenna share the same radiator, the low-frequency band and the GPS L5 band can only use modes with the same or similar current distribution. When the low-frequency band switches, the GPS L5 band will have a significant frequency deviation, making it impossible to ensure coexistence between the two. Therefore, in the related art, it is usually necessary to set up separate antenna spaces for the low-frequency antenna and the GPS L5 antenna, which leads to the problem that the antenna space required to be occupied by the low-frequency antenna and the GPS L5 antenna is relatively large. Summary of the Invention

[0003] An embodiment of the present application provides an electronic device that can solve the problem in the related art that the low-frequency antenna and the GPS L5 antenna require a large antenna space.

[0004] In a first aspect, an electronic device is provided, including a decorative ring, wherein an area where the decorative ring is located is an annular radiation area, and an operating frequency band of the annular radiation area includes a low frequency band and a GPS L5 band;

[0005] The annular radiation region includes a first current mode and a second current mode, wherein the first current mode and the second current mode are orthogonal;

[0006] One of the first current mode and the second current mode corresponds to the low frequency band, and the other corresponds to the GPS L5 frequency band.

[0007] In an embodiment of the present application, the operating frequency band of the annular radiation area includes a low-frequency band and a GPS L5 band, and the annular radiation area includes a first current mode and a second current mode, one of the first current mode and the second current mode corresponds to the low-frequency band, and the other corresponds to the GPS L5 band. Because the first current mode and the second current mode are orthogonal, the mutual influence between the low-frequency band and the GPS L5 band can be reduced, thereby enabling the low-frequency antenna and the GPS L5 antenna to be integrated into the annular radiation area where the decorative ring is located, thereby facilitating the reduction of the antenna space required for the low-frequency antenna and the GPS L5 antenna. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 This is one of the schematic diagrams of the antenna structure at the decorative ring in the embodiment of the present application;

[0009] Figure 2 This is one of the back views of the electronic device in the embodiment of the present application;

[0010] Figure 3 This is one of the schematic diagrams of the current distribution in the ring line radiation area in the embodiment of the present application;

[0011] Figure 4 This is the second schematic diagram of the current distribution in the ring line radiation area in the embodiment of the present application;

[0012] Figure 5 Yes Figure 3 Current distribution diagram obtained by simulation of the embodiment shown;

[0013] Figure 6 Yes Figure 3 Schematic diagram of antenna S11 curve obtained by simulation of the embodiment shown;

[0014] Figure 7 Yes Figure 3 Schematic diagram of the impedance curve of the antenna from 0.7 GHz to 1.5 GHz obtained by simulation of the embodiment shown;

[0015] Figure 8 (a) Yes Figure 1 The current distribution diagram of the embodiment shown in the figure is simulated in low frequency mode;

[0016] Figure 8 (b) is correct Figure 1 The embodiment shown simulates the current distribution diagram of GPS L5 mode;

[0017] Figure 9 Yes Figure 1 The illustrated embodiment shows a group of curves of antenna S11 when different capacitance and inductance values ​​are cut at the first position to tune the low frequency;

[0018] Figure 10 This is the second schematic diagram of the antenna structure at the decorative ring in the embodiment of the present application;

[0019] Figure 11 is a three-dimensional schematic diagram of an electronic device in an embodiment of the present application;

[0020] Figure 12 (a) For Figure 10 In the embodiment shown, the direction diagram of GPS L5 in the YZ plane when Phi=90° and Theta=90° when the single-pole double-throw switch is switched to the third position or the fourth position;

[0021] Figure 12 (b) for Figure 10 In the embodiment shown, the direction diagram of GPS L5 in the XY plane when Phi=90° and Theta=90° when the single-pole double-throw switch is switched to the third position or the fourth position;

[0022] Figure 13 (a) For Figure 10 In the embodiment shown, a schematic diagram of current distribution obtained by simulation when the single-pole double-throw switch is switched to the third position point;

[0023] Figure 13 (b) for Figure 10 In the embodiment shown, a schematic diagram of current distribution obtained by simulation when the single-pole double-throw switch is switched to the fourth position;

[0024] Figure 14 This is the third schematic diagram of the antenna structure at the decorative ring in the embodiment of the present application;

[0025] Figure 15 Yes Figure 14 A schematic diagram of current flow obtained by simulation of the embodiment shown;

[0026] Figure 16 Yes Figure 14 The embodiment shown is simulated to obtain a schematic diagram of the low frequency S11 and GPS L5 S11 in the B28 state / B5 state / B8 state, and S21 therebetween;

[0027] Figure 17 This is the fourth schematic diagram of the antenna structure at the decorative ring in the embodiment of the present application;

[0028] Figure 18 This is the fifth schematic diagram of the antenna structure at the decorative ring in the embodiment of the present application;

[0029] Figure 19 This is the sixth schematic diagram of the antenna structure at the decorative ring in the embodiment of the present application;

[0030] Figure 20 This is the seventh schematic diagram of the antenna structure at the decorative ring in the embodiment of the present application. DETAILED DESCRIPTION

[0031] The following will be combined with the accompanying drawings in the embodiments of this application to clearly describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0032] The terms "first," "second," and the like in this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable, where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein. Furthermore, the objects distinguished by "first" and "second" generally refer to a class and do not limit the number of objects. For example, the first object can be one or more. Furthermore, "or" in this application represents at least one of the connected objects. For example, the scope of protection for "A or B" covers at least three options: Option 1: includes A but not B; Option 2: includes B but not A; and Option 3: includes both A and B. Furthermore, the terms "A and / or B," "at least one of A and B," and "at least one of A or B" also cover at least the above three options, respectively. The character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0033] The electronic device provided in the embodiments of the present application is described in detail below through some embodiments and their application scenarios in conjunction with the accompanying drawings.

[0034] See Figure 1 , an embodiment of the present application provides an electronic device, the electronic device comprising a decorative ring 10, the area where the decorative ring 10 is located is an annular radiation area 20, and the operating frequency band of the annular radiation area 20 comprises a low frequency band and a GPS L5 band;

[0035] The annular radiation region 20 includes a first current mode (Mode 1, MD1) and a second current mode (Mode 2, MD2), wherein the first current mode and the second current mode are orthogonal;

[0036] One of the first current mode and the second current mode corresponds to the low frequency band, and the other corresponds to the GPS L5 frequency band.

[0037] The frequency range of the above low frequency band is 600MHz to 1GHz.

[0038] The electronic device can be a common electronic device such as a mobile phone, tablet, laptop, base station, or watch. The decorative ring 10 can be any type of decorative ring 10 on the surface of an electronic device, such as a camera decorative ring. The shape of the decorative ring 10 can be customized as needed, such as circular, oval, square, diamond, or irregular. For ease of understanding, the present embodiment uses a circular camera decorative ring as an example to further explain the structure of the electronic device provided in the present embodiment.

[0039] It can be understood that the operating frequency band of the annular radiation area 20 including the low frequency band and the GPS L5 frequency band may mean that a low frequency antenna and a GPS L5 antenna are simultaneously provided in the annular radiation area 20 .

[0040] The first current mode and the second current mode are orthogonal to each other, which means that the current direction of the first current mode is orthogonal to the current direction of the second current mode. Figure 4 , Figure 4 a is a schematic diagram of current distribution in the first current mode, wherein the Figure 4 The current I21 and the current I22 in a constitute the first current mode. Figure 4 b is a schematic diagram of current distribution in the second current mode, wherein the Figure 4 The current I31 and the current I32 in b constitute the second current mode.

[0041] See Figure 2 , is a schematic diagram of the back view of the electronic device. A00 is the outer contour of the electronic device, wherein the outer radius of the decorative ring 10 is about 33mm, the inner radius is about 30mm, and the circumference of the decorative ring 10 is about one wavelength of GPS L5. The dotted lines provide a reference for the position relationship. The intersection point P0 of several dotted lines is the center of the decorative ring 10, which is the main ground 120 of the electronic device. The first feeding point 24 is the common feeding point of low frequency + GPS L5. If the power is fed directly at the first feeding point 24, the current pattern of the antenna will be as follows Figure 3 As shown. Among them, see Figure 3 a. A one-wavelength mode consisting of a fundamental mode ring of I01 / I02 will be generated around 1.1GHz. Figure 3 b. For example, in the frequency band between 1.2GHz and 2GHz, a two-thirds wavelength mode consisting of I11 / I12 / I131 / I132 will appear. The two-thirds wavelength mode will have multiple current reversal points, resulting in serious energy cancellation. Although one of these two modes has a low frequency and the other has a high frequency, they cannot be used for low frequencies and GPS L5. Because the two modes are Figure 3There is a fixed current zero point at the center point 28. This direct single-feed configuration cannot form an orthogonal mode. During the low-frequency switching process, GPS L5 will experience a significant frequency deviation.

[0042] In order to realize the orthogonality between the first current mode and the second current mode, it is possible to Figure 3 On this basis, by loading a capacitor or inductor at a specific position in the annular radiation area 20, or adjusting the feeding position of the low-frequency antenna, and adjusting the feeding position of the GPS L5 antenna, the current mode of the annular radiation area 20 is changed, thereby achieving orthogonality between the first current mode and the second current mode.

[0043] In this embodiment, the operating frequency band of the annular radiation area 20 includes a low frequency band and a GPS L5 band, and the annular radiation area 20 includes a first current mode and a second current mode, one of which corresponds to the low frequency band and the other corresponds to the GPS L5 band. Because the first current mode and the second current mode are orthogonal, the mutual influence between the low frequency band and the GPS L5 band can be reduced, thereby enabling the low frequency antenna and the GPS L5 antenna to be integrated into the annular radiation area 20 where the decorative ring 10 is located, thereby reducing the antenna space required by the low frequency antenna and the GPS L5 antenna.

[0044] Optionally, the annular radiation area 20 includes a first position point 21, a second position point 22, a third position point 23 and a first feeding point 24, the second position point 22 and the third position point 23 divide the annular radiation area 20 into a first segment 26 and a second segment 27, the first position point 21 is located in the middle area of ​​the first segment 26, the first feeding point 24 is located between the first position point 21 and the second position point 22, and the first feeding point 24 is used to access the antenna signal of the low frequency band and the antenna signal of the GPS L5 band;

[0045] The electronic device further includes a first loading device 30 , which is a capacitor or an inductor. The first location point 21 is grounded through the first loading device 30 , or the third location point 23 is grounded through the first loading device 30 .

[0046] When the first position point 21 is grounded through the first loading device 30, the first loading device 30 can adjust the second current mode. For example, when the first loading device 30 is a capacitor, the frequency band of the second current mode can be lowered; correspondingly, when the first loading device 30 is an inductor, the frequency band of the second current mode can be increased.

[0047] When the third position point 23 is grounded through the first loading device 30, the first loading device 30 can adjust the first current mode. For example, when the first loading device 30 is a capacitor, the frequency band of the first current mode can be lowered; correspondingly, when the first loading device 30 is an inductor, the frequency band of the first current mode can be increased.

[0048] In this embodiment, by grounding the first position point 21 through the first loading device 30, or grounding the third position point 23 through the first loading device 30, since the first loading device 30 can change the current mode of the annular radiation area 20, it is beneficial to achieve orthogonality between the first current mode and the second current mode.

[0049] Optionally, the first position point 21 is a point of magnetic field intensity in the first current mode, and the first position point 21 is a point of electric field intensity in the second current mode;

[0050] The third point 23 is a point of high magnetic field intensity in the second current mode, and the third point 23 is a point of high electric field intensity in the first current mode.

[0051] The magnetic field strength point may be a location where the magnetic field is the strongest in the annular radiation area 20, or the magnetic field strength point may be a location near the location where the magnetic field is the strongest in the annular radiation area 20. Correspondingly, the electric field strength point may be a location where the electric field is the strongest in the annular radiation area 20, or the electric field strength point may be a location near the location where the electric field is the strongest in the annular radiation area 20.

[0052] In this embodiment, when the first location point 21 is grounded via the first loading device 30, since the first location point 21 is a point of magnetic field strength in the first current mode, the frequency of the first current mode remains unchanged during the process of adjusting the second circuit mode by the first loading device 30. This prevents the frequency band corresponding to the second circuit mode from being affected by the switching process of the frequency band corresponding to the first current mode. Correspondingly, when the third location point 23 is grounded via the first loading device 30, since the third location point 23 is a point of magnetic field strength in the second current mode, the frequency of the second current mode remains unchanged during the process of adjusting the first circuit mode by the first loading device 30. This prevents the frequency band corresponding to the first circuit mode from being affected by the switching process of the frequency band corresponding to the second current mode.

[0053] Optionally, when the circumference of the annular radiation area 20 is equal to or approximately equal to the wavelength corresponding to the GPS L5 frequency band, the first loading device 30 is a capacitor; or,

[0054] When the circumference of the annular radiation region 20 is equal to or approximately equal to the wavelength corresponding to the low-frequency band, the first loading device 30 is an inductor.

[0055] See Figure 2 In the embodiment of the present application, four points are selected on the decorative ring 10: the first position point 21, the second position point 22, the third position point 23, and the fourth position point 25. Figure 2 The angle between the line connecting the first position point 21 and P0 and the line connecting the first feeding point 24 and P0 is A1, wherein the angle between the line connecting the second position point 22 and P0 and the line connecting the first feeding point 24 and P0 is A2, and A1+A2 is approximately 90°. The first feeding point 24 is still the common feeding point for the low frequency and GPS L5, and the first feeding point 24 can be at any position on the ring. Figure 2 The points on the middle ring only reflect relative positions. G1 is the grounding point connected to the main ground 120.

[0056] In some embodiments of the present application, the electrical length of the decorative ring 10 is set at a position of one wavelength of GPS L5, that is, the circumference of the annular radiation area 20 is equal to or approximately equal to the operating wavelength of the GPS L5 antenna, that is, the circumference of the annular radiation area 20 is equal to or approximately equal to the wavelength corresponding to the GPS L5 frequency band. At this time, the first loading device 30 is a capacitor, and the third position point 23 is grounded through the first loading device 30. The goal is to perform capacitor loading at the third position point 23. Figure 3 The fundamental mode in is split into two modes with orthogonal current directions, including: Figure 4 Mode MD1 composed of I21 and I22, mode MD2 composed of I31 and I32, wherein there are current reversal points at the second position point 22 and the third position point 23. At this time, the capacitor at the third position point 23 will make mode MD1 go low because it is at the electric field strength point of MD1, and by controlling the capacitance value, it is made to operate in the low-frequency cellular band. The capacitor at the third position point 23 is at the magnetic field strength point of MD2, which ensures that the frequency of this mode remains basically unchanged and is still at GPS L5. The operating wavelength of the GPS L5 antenna can be the wavelength corresponding to the center frequency of the GPS L5 frequency band, or the wavelength corresponding to the frequency near the center frequency of the GPS L5 frequency band.

[0057] In some embodiments of the present application, the size of the decorative ring 10 can be further increased so that its initial double wavelength mode is in the low-frequency cellular band, that is, the circumference of the annular radiation area 20 is equal to or approximately equal to the operating wavelength of the low-frequency antenna, that is, the circumference of the annular radiation area 20 is equal to the wavelength corresponding to the low-frequency band. At this time, the first loading device 30 is an inductor, and the third position point 23 is grounded through the first loading device 30. By performing inductive loading at the third position point 23, the second current mode MD2 is basically fixed at the original frequency, and the first current mode is moved to the high frequency to the GPS L5 band. Among them, the operating wavelength of the low-frequency antenna can be the wavelength corresponding to the center frequency point of the low-frequency band, or the wavelength corresponding to the frequency point near the center frequency point of the low-frequency band.

[0058] In some embodiments of the present application, the loading position of the third position point 23 can also be adjusted to the position of the first position point 21, that is, the first position point 21 is grounded through the first loading device 30, wherein the relative positions of the remaining tuning loading positions and the first position point 21 must be the same as those in the aforementioned embodiments. Figure 1 The first matching network 160 in the figure is a matching combination on the feeder channel. In addition, this design can be combined with the communication IC to realize the use of low frequency or GPS L5 working alone through scene judgment. Figure 3 The I01+I02 mode in the DAC can increase the single-frequency working bandwidth. Figure 4 Two modes are shown.

[0059] It should be noted that Figure 1 The first feeding point 24 and each position point in the figure are only an example of the present application. In fact, the first feeding point 24 and each position point can be rotated as a whole as needed to ensure that the relative positions of each point remain unchanged.

[0060] In this embodiment, when the circumference of the annular radiation area 20 is equal to or approximately equal to the wavelength corresponding to the GPS L5 frequency band, the first loading device 30 is a capacitor. Thus, the capacitor at the third location 23, because it is at the electric field strength point of MD1, will cause mode MD1 to move downward, and by controlling the capacitance value, it is enabled to operate in the low-frequency cellular band. The capacitor at the third location 23 is also at the magnetic field strength point of MD2, which ensures that the frequency of this mode remains essentially unchanged and remains at GPS L5, thereby achieving coexistence of the GPS L5 frequency band and the low-frequency band. Accordingly, when the circumference of the annular radiation area 20 is equal to or approximately equal to the wavelength corresponding to the low-frequency band, the first loading device 30 is an inductor. Thus, the inductive loading at the third location 23 can keep the second current mode MD2 essentially stationary in the low-frequency band, while the first current mode moves toward the high frequency band of the GPS L5 frequency band, thereby achieving coexistence of the GPS L5 frequency band and the low-frequency band.

[0061] Optionally, the electronic device further includes a first switch tuning circuit 70, the first position point 21 is grounded through the first switch tuning circuit 70, the first position point 21 is a point of magnetic field strength in the first current mode, and the first position point 21 is a point of electric field strength in the second current mode; and / or

[0062] The electronic device further includes a second switch tuning circuit 80, and the second position point 22 is grounded through the second switch tuning circuit 80; the second position point 22 is a point of magnetic field strength in the second current mode, and the second position point 22 is a point of electric field strength in the first current mode.

[0063] The first switching tuning circuit 70 may include a first switch 71 and at least two first tuning sub-circuits 72. The first end of each first tuning sub-circuit 72 is electrically connected to the first location 21, and the second end of each first tuning sub-circuit 72 is grounded via the first switch 71. The first switch 71 may be used to control the conductive state between the second end of each first tuning sub-circuit 72 and ground. For example, the first switch 71 may control any one of the first tuning sub-circuits 72 to be conductive with ground, or the first switch 71 may control at least two of the first tuning sub-circuits 72 to be conductive with ground at the same time. In addition, the first switch 71 may also control all first tuning sub-circuits 72 to be non-conductive. The specific configuration may be as needed. The first tuning sub-circuits 72 may be various common tuning circuits. Each first tuning sub-circuit 72 includes at least one of a capacitor and an inductor. When the first tuning sub-circuit 72 includes two or more components, the components may be connected in series or in parallel. The specific configuration may be as needed.

[0064] Accordingly, the second switching tuning circuit 80 may include a second switch 81 and at least two second tuning sub-circuits 82. The first end of each second tuning sub-circuit 82 is electrically connected to the second location point 22, and the second end of each second tuning sub-circuit 82 is grounded via the second switch 81. The second switch 81 may be used to control the conductive state between the second end of each second tuning sub-circuit 82 and ground. For example, the second switch 81 may control any second tuning sub-circuit 82 to be conductive to ground, or the second switch 81 may control at least two second tuning sub-circuits 82 to be conductive to ground at the same time. In addition, the second switch 81 may also control all second tuning sub-circuits 82 to be non-conductive. The specific configuration may be as needed. The second tuning sub-circuit 82 may be various common tuning circuits. Each second tuning sub-circuit 82 includes at least one of a capacitor and an inductor. When the second tuning sub-circuit 82 includes two or more components, the components may be connected in series or in parallel. The specific configuration may be as needed.

[0065] In some embodiments of the present application, the first switch tuning circuit 70 is referred to as SW1, and the second switch tuning circuit 80 is referred to as SW2. For further explanation of the first switch tuning circuit 70 and the second switch tuning circuit 80, see Figure 1 A ground switch SW2 is provided at point 22, the second current reversal point of MD1, to switch to a second tuning subcircuit 82 for capacitance and inductance in the ground path. Because this second switch 81 is located at a point where the electric field of MD1 is strong and the magnetic field of MD2 is strong, the effect on MD2 during the tuning of the low-frequency mode MD1 is minimal. This achieves multi-band tuning of the low frequency based on mode splitting, while maintaining essentially zero frequency offset for GPS L5, ensuring simultaneous operation of both.

[0066] In some embodiments of the present application, a switch SW1 can also be added at the electric field strength point of MD2 and the magnetic field strength point of MD1. The switch has a first tuning subcircuit 72 connected to the ground. The capacitor or inductor in the first tuning subcircuit 72 is switched by the first switch 71 to optimize GPS L5. Here, it is necessary to ensure that the second position 22 of the cellular switch tuning position and the third position 23 of the initial loading position are at a 180° angle relative to the center of the circle; while the first position 21 of the GPS L5 tuning position and the third position 23 of the initial loading position are at a 90° angle relative to the center of the circle. This ensures that each tuning position corresponds to the electric field strength point of the mode to be tuned and the magnetic field strength point of the mode to be fixed, ensuring that adjusting one mode does not affect the other.

[0067] In this embodiment, the electronic device further includes a first switch tuning circuit 70, the first position point 21 is grounded through the first switch tuning circuit 70, the first position point 21 is the magnetic field strength point of the first current mode, and the first position point 21 is the electric field strength point of the second current mode; and / or the electronic device further includes a second switch tuning circuit 80, the second position point 22 is grounded through the second switch tuning circuit 80; the second position point 22 is the magnetic field strength point of the second current mode, and the second position point 22 is the electric field strength point of the first current mode. In this way, it is beneficial to achieve that in the process of switching one of the working frequency bands of the annular radiation area 20, the other frequency band is not affected, thereby achieving coexistence of the low frequency band and the GPS L5 band.

[0068] like Figure 5 , for Figure 3 The current distribution diagrams of the aforementioned I01 / I02 mode and I11 / I12 / I131 / I132 mode obtained by simulation of the scheme. Figure 6 Shown Figure 3 The corresponding antenna S11 curve under this structure shows that there is only one resonance within the considered frequency band. Figure 7 , the green line is Figure 3 In this case, the impedance curve of the antenna from 0.7GHz to 1.5GHz shows that there is no knot in the middle of the impedance curve, and there is only a single mode around 1GHz. Figure 7 The red line shows the impedance curve from 0.7 GHz to 1.5 GHz after a 2.7 pF ground capacitor is loaded at the third position, point 23. A knot appears in the impedance curve around 1 GHz, indicating the emergence of a new mode near this location, thus achieving the aforementioned mode splitting.

[0069] like Figure 8 , which is the two orthogonal mode current distributions split after adding capacitor loading design at the third position 23, Figure 8 a is the low-frequency working mode after the third position point 23 is loaded with a capacitor, Figure 8 b is the GPS L5 working mode with small frequency variation. Figure 9 , corresponding to Figure 1 After the switch is set, the antenna S11 curve group when different capacitor and inductor values ​​are tuned to low frequency at the first position 21 is shown. It can be seen that the GPS L5 resonant frequency remains unchanged during the process of switching the low frequency from B28 to B8.

[0070] It can be seen that the above embodiments of the present application can achieve complete common radiator and common aperture of low frequency and GPS L5 without affecting other antennas. Specifically, by using the decorative ring 10 as the common radiator of low frequency and GPS L5, low frequency and GPS L5 can be co-fed or split. The single current mode is split into two current modes with orthogonal directions through special loading positions. The tuning positions are tuned at the sensitive points of the two new modes respectively, and the set directional orthogonal relationship must be met to achieve mutual non-interference between low frequency and GPS L5. In addition, through the control of the communication IC, different situations such as low frequency operation alone, GPS L5 operation alone, and low frequency and GPS L5 working together can be achieved for different scenarios.

[0071] Alternatively, see Figure 10 The annular radiation area 20 includes a first position point 21, a second position point 22, a third position point 23, a fourth position point 25 and a first feeding point 24. The second position point 22 and the third position point 23 divide the annular radiation area 20 into a first segment 26 and a second segment 27. The first position point 21 is located in the middle area of ​​the first segment 26, and the fourth position point 25 is located in the middle area of ​​the second segment 27. The first feeding point 24 is located between the first position point 21 and the second position point 22. The first feeding point 24 is used to access the antenna signal of the low frequency band and the antenna signal of the GPS L5 band.

[0072] The electronic device also includes a first capacitor 40, a second capacitor 50 and a single-pole double-throw switch 60. The single-pole double-throw switch 60 includes a first fixed end 61, a second fixed end 62 and a movable end 63. The first fixed end 61 is electrically connected to the third position point 23 through the first capacitor 40, the second fixed end 62 is electrically connected to the fourth position point 25 through the second capacitor 50, and the movable end 63 is grounded.

[0073] Among them, this embodiment and Figure 1 The main difference between the illustrated embodiments is that a single-pole double-throw switch 60 is added between the third position point 23 and the fourth position point 25, connecting the first capacitor 40 and the second capacitor 50 at the third position point 23 and the fourth position point 25 respectively. The grounding state of the first capacitor 40 and the second capacitor 50 is controlled by the single-pole double-throw switch 60. When the single-pole double-throw switch 60 is switched to connect the movable end 63 with the first fixed end 61 and disconnect the movable end 63 from the second fixed end 62, that is, when the single-pole double-throw switch 60 grounds the first capacitor 40 and disconnects the second capacitor 50 from the ground, the capacitor loading at the third position point 23 can be achieved, thereby obtaining Figure 1When the single-pole double-throw switch 60 is switched to disconnect the movable end 63 from the first fixed end 61 and connect the movable end 63 to the second fixed end 62, that is, when the single-pole double-throw switch 60 grounds the second capacitor 50 and disconnects the first capacitor 40, the capacitor loading at the fourth position point 25 can be achieved, thereby obtaining Figure 1 The opposite current distribution of the embodiment shown is that the GPS L5 working mode is adjusted to low-frequency operation, and the low-frequency working mode is adjusted to GPS L5 operation. In this way, GPS L5 or low frequency can have two different current distributions, and these two different current distributions correspond to different antenna radiation patterns, so the radiation pattern switching of GPS L5 or low frequency can be achieved. Furthermore, the positions of the third position point 23 and the fourth position point 25 can be adjusted, or the capacitance of the first capacitor 40 and the second capacitor 50 can be adjusted to achieve more current distributions, thereby achieving radiation pattern switching in more states. Combined with the software algorithm, for GPS L5, the optimal radiation pattern selection can be achieved by judging the carrier-to-noise ratio (CN0); for low frequency, the optimal radiation pattern selection can be achieved by judging the reference signal receiving power (RSRP).

[0074] It should be noted that Figure 10 The first feeding point 24 and each position point in the figure are only an example of the present application. In fact, the first feeding point 24 and each position point can be rotated as a whole as needed to ensure that the relative positions of each point remain unchanged.

[0075] See Figure 10 ,exist Figure 10 In the illustrated embodiment, it can also be configured that: the electronic device further includes a first switch tuning circuit 70, the first position point 21 is grounded through the first switch tuning circuit 70, the first position point 21 is the magnetic field strength point of the first current mode, and the first position point 21 is the electric field strength point of the second current mode; and / or, the electronic device further includes a second switch tuning circuit 80, the second position point 22 is grounded through the second switch tuning circuit 80; the second position point 22 is the magnetic field strength point of the second current mode, and the second position point 22 is the electric field strength point of the first current mode.

[0076] like Figure 11 , is a schematic diagram of the back view of an electronic device, which is mainly used to explain the definition of the coordinate system. Figure 12 , is the GPS L5 direction diagram when Phi=90° and Theta=90° when the single-pole double-throw switch 60 is switched to the loading capacitor of the third position point 23 or the fourth position point 25 respectively. Figure 12 LK1 in a is a schematic diagram of the cross-sectional profile of the electronic device in the YZ plane, with the Z+ direction being the back side of the electronic device; Figure 12 LK2 in Figure b is a schematic cross-sectional profile of the electronic device in the XY plane. DP31 and DP32 are the directional patterns when switching to the P3 loading position, and DP41 and DP42 are the directional patterns when switching to the fourth loading position, point 25. As can be seen, implementing directional pattern switching can provide the antenna with a wider coverage range, making it suitable for more complex environments. Figure 13 a is the GPS L5 current distribution when the third position 23 is loaded, Figure 13 b is the GPS L5 current distribution when the fourth position point 25 is loaded.

[0077] In this embodiment, the electronic device further includes a first capacitor 40, a second capacitor 50 and a single-pole double-throw switch 60, the single-pole double-throw switch 60 including a first fixed end 61, a second fixed end 62 and a movable end 63, the first fixed end 61 being electrically connected to the third position point 23 through the first capacitor 40, the second fixed end 62 being electrically connected to the fourth position point 25 through the second capacitor 50, and the movable end 63 being grounded. In this way, the switching of the loading position can be achieved based on the single-pole double-throw switch 60. By tuning the loading at a specific loading position, the angle control of the current distribution on the radiator of the low frequency and GPS L5 can be achieved, thereby achieving different directional patterns. In this way, the directional pattern scanning of the low frequency or GPS L5 can be achieved subsequently by combining software and hardware, with the low frequency using RSRP judgment and the GPS L5 using CN0 judgment, so that the antenna is always in the optimal beam direction.

[0078] Alternatively, see Figure 14 The annular radiation area 20 includes a first position point 21, a second position point 22, and a third position point 23. The second position point 22 and the third position point 23 divide the annular radiation area 20 into a first segment 26 and a second segment 27. The first position point 21 is located in the middle area of ​​the first segment 26. The first position point 21 is used to access the antenna signal of the GPS L5 frequency band, and the second position point 22 is used to access the antenna signal of the low frequency band.

[0079] The electronic device further includes a third switch tuning circuit 130 , and the third location point 23 is grounded via the third switch tuning circuit 130 .

[0080] The third switching tuning circuit 130 may include a third switching element 131 and at least two third tuning sub-circuits 132. The first end of each of the third tuning sub-circuits 132 is electrically connected to the third position point 23, and the second end of each of the third tuning sub-circuits 132 is grounded through the third switching element 131. The third switching element 131 may be used to control the conduction state between the second end of each third tuning sub-circuit 132 and the ground. For example, the third switching element 131 may control any one of the third tuning sub-circuits 132 to be conductive with the ground, or the third switching element 131 may control at least two of the third tuning sub-circuits 132 to be conductive with the ground at the same time. In addition, the third switching element 131 may also control all of the third tuning sub-circuits 132 to be non-conductive. The specific configuration may be as needed. The third tuning sub-circuit 132 can be various common tuning circuits. Each third tuning sub-circuit 132 includes at least one of a capacitor and an inductor. When the third tuning sub-circuit 132 includes more than two devices, the devices included therein can be connected in series and in parallel, and the specific configuration can be based on needs.

[0081] like Figure 14 As shown, this embodiment separates the low-frequency and GPS L5 feeds. The low-frequency feed can be identified by F012, and the GPS L5 feed can be identified by F011. The GPS L5 feed is located at the first location 21 in the above embodiment. The third matching network 150 and the second matching network 140 are the matching networks for the low-frequency feed and the GPS L5 feed, respectively. The angle between the line connecting the first location 21 and the center of the decorative ring 10 and the line connecting the second location and the center of the decorative ring 10 is approximately 90°, ensuring that the currents generated by the two locations are orthogonal, thereby resolving the isolation issue between the two near-frequency locations. Figure 15 I21 and I22 form the low-frequency operating current mode, while I31 and I32 form the GPS L5 operating current mode. A third switching tuning circuit 130 connected to ground is provided at the third location 23, i.e., the low-frequency electric field strength point, as a loading tuning switch. The low-frequency resonance frequency switching is achieved by adjusting the capacitance and inductance values ​​of the third tuning sub-circuit 132 connected to ground in the third switching tuning circuit 130, while having minimal impact on the GPS L5.

[0082] It should be noted that Figure 14 The first feeding point 24 and each position point in the figure are only an example of the present application. In fact, the first feeding point 24 and each position point can be rotated as a whole as needed to ensure that the relative positions of each point remain unchanged.

[0083] like Figure 16 , respectively Figure 14The embodiment shown shows the low frequency S11 and GPS L5 S11 in the B28 state, the B5 state, and the S21 between the two. It can be seen that as the low frequency switches from B28 to B8, the resonance of GPS L5 remains essentially unchanged. At the same time, the low frequency and GPS L5 have very good isolation due to the orthogonal current directions.

[0084] In this embodiment, by performing a split-feed design for the low-frequency band and the GPS L5 band, the first current mode and the second current mode can also be orthogonal to achieve coexistence of the low-frequency band and the GPS L5 band. At the same time, the low-frequency band and the GPS L5 band can have better isolation.

[0085] Optionally, the decorative ring 10 is a metal decorative ring, and the annular radiation area 20 is a radiation area formed by the decorative ring 10; or,

[0086] The electronic device includes a metal back cover 90 . The metal back cover 90 is provided with an annular groove 93 . The decorative ring 10 is embedded in the annular groove 93 . The annular radiation area 20 is the radiation area formed by the annular groove 93 .

[0087] It should be noted that when the annular radiation area 20 is the radiation area formed by the decorative ring 10, the low-frequency antenna and the GPS L5 antenna can be respectively deployed on the decorative ring 10. In this case, the decorative ring 10 can form the radiator of the low-frequency antenna and the GPS L5 antenna. Figure 19 The embodiment shown is an embodiment in which the annular radiation area 20 is a radiation area formed by the annular groove 93 .

[0088] Accordingly, see Figure 19 and Figure 20 When the annular radiation area 20 is the radiation area formed by the annular groove 93, the annular groove 93 can be used as the radiation part of the slot antenna, and the low frequency band and GPS L5 band can be deployed in the slot antenna respectively. Figure 19 In the embodiment shown, a non-metallic ring structure can be opened on the metal battery back cover below the decorative ring 10, and the second metal area 92 is the metal part of the battery cover inside the ring. The feed circuit corresponding to the first feed point 24, the first switch tuning circuit 70, the second switch tuning circuit 80 and the first loading device 30 can be directly connected to the corresponding first metal area 91, and the corresponding Figure 4 The working mode shown is further coupled to the decorative ring 10 for radiation.

[0089] It is understandable that Figure 1 、 Figure 10 、 Figure 14 、 Figure 17 、 Figure 18 The annular radiation area 20 in the embodiment shown can also be replaced by Figure 19 The radiation area formed by the annular groove 93 is shown.

[0090] It should be noted that Figure 19 The first feeding point 24 and each position point in the figure are only an example of the present application. In fact, the first feeding point 24 and each position point can be rotated as a whole as needed to ensure that the relative positions of each point remain unchanged.

[0091] In this embodiment, the decorative ring 10 is a metal decorative ring, and the annular radiation area 20 is the radiation area formed by the decorative ring 10; or, the electronic device includes a metal back cover 90, the metal back cover 90 is provided with an annular groove 93, the decorative ring 10 is embedded in the annular groove 93, and the annular radiation area 20 is the radiation area formed by the annular groove 93. In this way, the coexistence of the low frequency band and the GPS L5 band in the embodiment of the present application can be applied to various types of electronic devices.

[0092] Alternatively, see Figure 17 In the case where the annular radiation area 20 is the radiation area formed by the decorative ring 10, the electronic device further includes a conductive ring 100, wherein the conductive ring 100 is coaxially arranged with the decorative ring 10, and the conductive ring 100 is opposite to the decorative ring 10, and the conductive ring 100 is coupled to the decorative ring 10;

[0093] The annular radiation area 20 includes a first position point 21, a second position point 22, and a third position point 23. The second position point 22 and the third position point 23 divide the annular radiation area 20 into a first segment 26 and a second segment 27. The first position point 21 is located in the middle area of ​​the first segment 26.

[0094] The conductive ring 100 includes a first loading point 101, a first tuning point 102, a second tuning point 103 and a first feeding point 24, wherein the first loading point 101 is opposite to the third position point 23, the first tuning point 102 is opposite to the first position point 21, the second tuning point 103 is opposite to the second position point 22, the first feeding point 24 is located between the first tuning point 102 and the second tuning point 103, and the first feeding point 24 is used to access the antenna signal of the low frequency band and the antenna signal of the GPS L5 band.

[0095] In actual engineering, due to factors such as reliability and the impact on appearance, it is often not desirable to directly connect the antenna feed or ground loading position to the decorative ring 10. Based on this, the embodiment of the present application achieves an electrical connection state close to direct connection through a large-area coupling design. Figure 17 As shown, a conductive ring 100 can be designed below the decorative ring 10 to couple with the decorative ring 10, and the distance between the two can be designed to be 0.1mm to 0.5mm. The feeding and loading positions are directly connected to the conductive ring 100.

[0096] Specifically, the outer diameter of the conductive ring 100 can be larger than the decorative ring 10 and the inner diameter can be smaller than the decorative ring 10 , so as to avoid coupling deviation caused by assembly tolerance in the horizontal plane.

[0097] The first loading point 101 can be used to electrically connect to the first loading device 30 in the embodiment to achieve loading of the third position point 23. The first tuning point 102 can be used to electrically connect to the first switch tuning circuit 70 in the embodiment, which is equivalent to the first position point 21 being electrically connected to the first switch tuning circuit 70. The second tuning point 103 can be used to electrically connect to the second switch tuning circuit 80 in the embodiment, which is equivalent to the second position point 22 being electrically connected to the second switch tuning circuit 80, thereby achieving Figure 1 The antenna structure is similar to the embodiment shown. It should be noted that Figure 1 、 Figure 10 、 Figure 14 、 Figure 19 The embodiment shown may also use the conductive ring 100 to achieve the purpose of not directly connecting the antenna feeding or ground loading position to the decorative ring 10, and has an effect close to direct connection.

[0098] It should be noted that Figure 17 The first feeding point 24 and each position point in the figure are only an example of the present application. In fact, the first feeding point 24 and each position point can be rotated as a whole as needed to ensure that the relative positions of each point remain unchanged.

[0099] In this embodiment, the annular radiation area 20 includes a first position point 21, a second position point 22 and a third position point 23, and the second position point 22 and the third position point 23 divide the annular radiation area 20 into a first segment 26 and a second segment 27. The first position point 21 is located in the middle area of ​​the first segment 26; the conductive ring 100 includes a first loading point 101, a first tuning point 102, a second tuning point 103 and a first feeding point 24. The first loading point 101 is opposite to the third position point 23, the first tuning point 102 is opposite to the first position point 21, the second tuning point 103 is opposite to the second position point 22, the first feeding point 24 is located between the first tuning point 102 and the second tuning point 103, and the first feeding point 24 is used to access the antenna signal of the low frequency band and the GPS The antenna signal of the L5 frequency band can avoid the antenna feed or the ground loading position being directly connected to the decorative ring 10, and has an effect close to direct connection, which is beneficial to improving the reliability of the electronic device and improving the aesthetics of the appearance.

[0100] Alternatively, see Figure 18 In the case where the annular radiation area 20 is the radiation area formed by the decorative ring 10, the electronic device further includes a first arc-shaped conductive sheet 111, a second arc-shaped conductive sheet 112, a third arc-shaped conductive sheet 113, and a fourth arc-shaped conductive sheet 114. The annular radiation area 20 includes a first position point 21, a second position point 22, and a third position point 23. The second position point 22 and the third position point 23 divide the annular radiation area 20 into a first segment 26 and a second segment 27. The first position point 21 is located in the middle area of ​​the first segment 26.

[0101] The first arc-shaped conductive sheet 111, the second arc-shaped conductive sheet 112, the third arc-shaped conductive sheet 113, and the fourth arc-shaped conductive sheet 114 are arranged in sequence along the same circumference, and the first arc-shaped conductive sheet 111 is opposite to the first position point 21, the third arc-shaped conductive sheet 113 is opposite to the second position point 22, and the fourth arc-shaped conductive sheet 114 is opposite to the third position point 23. The first arc-shaped conductive sheet 111, the second arc-shaped conductive sheet 112, the third arc-shaped conductive sheet 113, and the fourth arc-shaped conductive sheet 114 are respectively coupled to the decorative ring 10;

[0102] The first arc-shaped conductive sheet 111 is provided with a first tuning point 102 opposite to the first position point 21, the second arc-shaped conductive sheet 112 is provided with a first feeding point 24, the third arc-shaped conductive sheet 113 is provided with a second tuning point 103 opposite to the second position point 22, and the fourth arc-shaped conductive sheet 114 is provided with a first loading point 101 opposite to the third position point 23. The first feeding point 24 is used to access the antenna signal of the low frequency band and the antenna signal of the GPS L5 band.

[0103] Figure 18 The embodiment shown is relative to Figure 17 The main difference of the embodiment shown is that the arc-shaped conductive sheet is replaced by a plurality of separated segments. Figure 17 That is, an arc-shaped conductive sheet can be provided at each electrical connection position below the decorative ring 10, for example, see Figure 18 The feeding and loading positions are directly connected to the first curved conductive sheet 111, the second curved conductive sheet 112, the third curved conductive sheet 113, and the fourth curved conductive sheet 114. The spacing between the first curved conductive sheet 111, the second curved conductive sheet 112, the third curved conductive sheet 113, and the fourth curved conductive sheet 114 and the decorative ring 10 can be designed to be 0.1-0.5 mm, thus achieving a near-direct electrical connection.

[0104] The first loading point 101 can be used to electrically connect to the first loading device 30 in the embodiment to achieve loading of the third position point 23. The first tuning point 102 can be used to electrically connect to the first switch tuning circuit 70 in the embodiment, which is equivalent to the first position point 21 being electrically connected to the first switch tuning circuit 70. The second tuning point 103 can be used to electrically connect to the second switch tuning circuit 80 in the embodiment, which is equivalent to the second position point 22 being electrically connected to the second switch tuning circuit 80, thereby achieving Figure 1 The antenna structure is similar to the embodiment shown. It should be noted that Figure 1 、 Figure 10 、 Figure 14 、 Figure 19 The embodiment shown may also use an arc-shaped conductive sheet to achieve the purpose of not directly connecting the antenna feeding or ground loading position to the decorative ring 10, and has an effect close to direct connection.

[0105] It should be noted that Figure 18 The first feeding point 24 and each position point in the figure are only an example of the present application. In fact, the first feeding point 24 and each position point can be rotated as a whole as needed to ensure that the relative positions of each point remain unchanged.

[0106] In this embodiment, the first arc-shaped conductive sheet 111, the second arc-shaped conductive sheet 112, the third arc-shaped conductive sheet 113 and the fourth arc-shaped conductive sheet 114 are arranged in sequence along the same circumference, and the first arc-shaped conductive sheet 111 is opposite to the first position point 21, the third arc-shaped conductive sheet 113 is opposite to the second position point 22, and the fourth arc-shaped conductive sheet 114 is opposite to the third position point 23. 3 and the fourth arc-shaped conductive sheet 114 are respectively coupled with the decorative ring 10; the first arc-shaped conductive sheet 111 is provided with a first tuning point 102 opposite to the first position point 21, the second arc-shaped conductive sheet 112 is provided with a first feeding point 24, the third arc-shaped conductive sheet 113 is provided with a second tuning point 103 opposite to the second position point 22, and the fourth arc-shaped conductive sheet 114 is provided with a first loading point 101 opposite to the third position point 23, and the first feeding point 24 is used to access the antenna signal of the low frequency band and the antenna signal of the GPS L5 band. In this way, the antenna feeding or ground loading position can be avoided from being directly connected to the decorative ring 10, and has an effect close to direct connection, which is beneficial to improving the reliability of the electronic device and improving the aesthetics of the appearance.

[0107] Alternatively, see Figure 19 In the case where the annular radiation area 20 is the radiation area formed by the annular groove 93, the annular groove 93 separates the metal back cover 90 into a first metal area 91 and a second metal area 92, and the first metal area 91 is located outside the second metal area 92;

[0108] The annular radiation area 20 includes a first position point 21, a second position point 22, and a third position point 23. The second position point 22 and the third position point 23 divide the annular radiation area 20 into a first segment 26 and a second segment 27. The first position point 21 is located in the middle area of ​​the first segment 26.

[0109] The first metal area 91 includes a first loading point 101, a first tuning point 102, a second tuning point 103 and a first feeding point 24, the first loading point 101 is opposite to the third position point 23, the first tuning point 102 is opposite to the first position point 21, the second tuning point 103 is opposite to the second position point 22, the first feeding point 24 is located between the first tuning point 102 and the second tuning point 103, and the first feeding point 24 is used to access the antenna signal of the low frequency band and the antenna signal of the GPS L5 band.

[0110] exist Figure 19In the illustrated embodiment, the decorative ring 10 may be a metal decorative ring or a non-metal decorative ring. When the decorative ring 10 is a metal decorative ring, the first metal region 91 , the decorative ring 10 and the second metal region 92 may be coupled in sequence.

[0111] The first loading point 101 can be used to electrically connect to the first loading device 30 in the embodiment to achieve loading of the third position point 23. The first tuning point 102 can be used to electrically connect to the first switch tuning circuit 70 in the embodiment, which is equivalent to the first position point 21 being electrically connected to the first switch tuning circuit 70. The second tuning point 103 can be used to electrically connect to the second switch tuning circuit 80 in the embodiment, which is equivalent to the second position point 22 being electrically connected to the second switch tuning circuit 80, thereby achieving Figure 1 The antenna structure is similar to the embodiment shown. It can be understood that Figure 1 、 Figure 10 、 Figure 14 、 Figure 17 、 Figure 18 The annular radiation area 20 in the embodiment shown can also be replaced by Figure 19 The radiation area formed by the annular groove 93 is shown.

[0112] It should be noted that Figure 19 The first feeding point 24 and each position point in the figure are only an example of the present application. In fact, the first feeding point 24 and each position point can be rotated as a whole as needed to ensure that the relative positions of each point remain unchanged.

[0113] In this embodiment, the metal back cover 90 is divided into a first metal area 91 and a second metal area 92 by the annular groove 93, and the first metal area 91 is located on the outside of the second metal area 92; the annular radiation area 20 includes a first position point 21, a second position point 22 and a third position point 23, the second position point 22 and the third position point 23 divide the annular radiation area 20 into a first segment 26 and a second segment 27, and the first position point 21 is located in the middle area of ​​the first segment 26; the first metal area 91 includes a first loading point 101, a first tuning point 102, a second tuning point 103 and a first feeding point 24, the first loading point 101 is opposite to the third position point 23, the first tuning point 102 is opposite to the first position point 21, the second tuning point 103 is opposite to the second position point 22, the first feeding point 24 is located between the first tuning point 102 and the second tuning point 103, and the first feeding point 24 is used to access the antenna signal of the low frequency band and the GPS In this way, the metal back cover 90 can be used to achieve the coexistence of the low frequency band and the GPS L5 frequency band.

[0114] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. An electronic device, characterized in that: The decorative ring includes a ring-shaped radiation area, and the operating frequency band of the ring-shaped radiation area includes a low frequency band and a GPS L5 band; The annular radiation region includes a first current mode and a second current mode, wherein the first current mode and the second current mode are orthogonal; One of the first current mode and the second current mode corresponds to the low frequency band, and the other corresponds to the GPS L5 frequency band.

2. The electronic device according to claim 1, wherein The annular radiation area includes a first position point, a second position point, a third position point and a first feeding point, the second position point and the third position point equally divide the annular radiation area into a first segment and a second segment, the first position point is located in the middle area of ​​the first segment, the first feeding point is located between the first position point and the second position point, and the first feeding point is used to access the antenna signal of the low frequency band and the antenna signal of the GPS L5 band; The electronic device further includes a first loading device, which is a capacitor or an inductor. The first position point is grounded through the first loading device, or the third position point is grounded through the first loading device.

3. The electronic device according to claim 2, wherein: The first position point is a point of magnetic field intensity in the first current mode, and the first position point is a point of electric field intensity in the second current mode; The third position point is a point of magnetic field intensity in the second current mode, and the third position point is a point of electric field intensity in the first current mode.

4. The electronic device according to claim 2, wherein: When the circumference of the annular radiation area is equal to the wavelength corresponding to the GPS L5 frequency band, the first loading device is a capacitor; or When the circumference of the annular radiation area is equal to the wavelength corresponding to the low-frequency band, the first loading device is an inductor.

5. The electronic device according to claim 1, wherein The annular radiation area includes a first position point, a second position point, a third position point, a fourth position point and a first feeding point, the second position point and the third position point divide the annular radiation area into a first segment and a second segment, the first position point is located in the middle area of ​​the first segment, the fourth position point is located in the middle area of ​​the second segment, the first feeding point is located between the first position point and the second position point, and the first feeding point is used to access the antenna signal of the low frequency band and the antenna signal of the GPSL5 band; The electronic device also includes a first capacitor, a second capacitor and a single-pole double-throw switch, the single-pole double-throw switch includes a first fixed end, a second fixed end and a movable end, the first fixed end is electrically connected to the third position point through the first capacitor, the second fixed end is electrically connected to the fourth position point through the second capacitor, and the movable end is grounded.

6. The electronic device according to any one of claims 2 to 5, characterized in that: The electronic device further includes a first switch tuning circuit, the first position point is grounded through the first switch tuning circuit, the first position point is a point of magnetic field intensity in the first current mode, and the first position point is a point of electric field intensity in the second current mode; and / or The electronic device also includes a second switch tuning circuit, and the second position point is grounded through the second switch tuning circuit; the second position point is a point of magnetic field strength in the second current mode, and the second position point is a point of electric field strength in the first current mode.

7. The electronic device according to claim 1, wherein: The annular radiation area includes a first position point, a second position point, and a third position point, wherein the second position point and the third position point equally divide the annular radiation area into a first segment and a second segment, the first position point is located in the middle area of ​​the first segment, the first position point is used to access the antenna signal of the GPS L5 frequency band, and the second position point is used to access the antenna signal of the low frequency band; The electronic device further includes a third switch tuning circuit, and the third location point is grounded through the third switch tuning circuit.

8. The electronic device according to claim 1, wherein: The decorative ring is a metal decorative ring, and the annular radiation area is the radiation area formed by the decorative ring; or The electronic device comprises a metal back cover, the metal back cover is provided with an annular groove, the decorative ring is embedded in the annular groove, and the annular radiation area is the radiation area formed by the annular groove.

9. The electronic device according to claim 8, wherein: In a case where the annular radiation area is the radiation area formed by the decorative ring, the electronic device further comprises a conductive ring, the conductive ring is coaxially arranged with the decorative ring, the conductive ring is opposite to the decorative ring, and the conductive ring is coupled to the decorative ring; The annular radiation area includes a first position point, a second position point and a third position point, the second position point and the third position point equally divide the annular radiation area into a first segment and a second segment, and the first position point is located in the middle area of ​​the first segment; The conductive ring includes a first loading point, a first tuning point, a second tuning point and a first feeding point, the first loading point is opposite to the third position point, the first tuning point is opposite to the first position point, the second tuning point is opposite to the second position point, the first feeding point is located between the first tuning point and the second tuning point, and the first feeding point is used to access the antenna signal of the low frequency band and the antenna signal of the GPS L5 band.

10. The electronic device according to claim 8, wherein In the case where the annular radiation area is the radiation area formed by the decorative ring, the electronic device further includes a first arc-shaped conductive sheet, a second arc-shaped conductive sheet, a third arc-shaped conductive sheet, and a fourth arc-shaped conductive sheet, the annular radiation area includes a first position point, a second position point, and a third position point, the second position point and the third position point equally divide the annular radiation area into a first segment and a second segment, and the first position point is located in the middle area of ​​the first segment; The first arc-shaped conductive sheet, the second arc-shaped conductive sheet, the third arc-shaped conductive sheet, and the fourth arc-shaped conductive sheet are sequentially spaced along the same circumference, and the first arc-shaped conductive sheet is opposite to the first position point, the third arc-shaped conductive sheet is opposite to the second position point, and the fourth arc-shaped conductive sheet is opposite to the third position point, and the first arc-shaped conductive sheet, the second arc-shaped conductive sheet, the third arc-shaped conductive sheet, and the fourth arc-shaped conductive sheet are respectively coupled to the decorative ring; The first arc-shaped conductive sheet is provided with a first tuning point opposite to the first position point, the second arc-shaped conductive sheet is provided with a first feeding point, the third arc-shaped conductive sheet is provided with a second tuning point opposite to the second position point, and the fourth arc-shaped conductive sheet is provided with a first loading point opposite to the third position point. The first feeding point is used to access the antenna signal of the low frequency band and the antenna signal of the GPS L5 band.

11. The electronic device according to claim 8, wherein In the case where the annular radiation area is the radiation area formed by the annular groove, the annular groove separates the metal back cover into a first metal area and a second metal area, and the first metal area is located outside the second metal area; The annular radiation area includes a first position point, a second position point and a third position point, the second position point and the third position point equally divide the annular radiation area into a first segment and a second segment, and the first position point is located in the middle area of ​​the first segment; The first metal area includes a first loading point, a first tuning point, a second tuning point and a first feeding point, the first loading point is opposite to the third position point, the first tuning point is opposite to the first position point, the second tuning point is opposite to the second position point, the first feeding point is located between the first tuning point and the second tuning point, and the first feeding point is used to access the antenna signal of the low frequency band and the antenna signal of the GPS L5 band.

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