Electronic device

Abstract

According to the electronic equipment, at least part of an antenna radiator is arranged on a first frame, the antenna radiator comprises a first end, a second end, a feeding point, a grounding point and an electric connection point, the electric connection point is arranged opposite to the first frame, and the electric connection point and the grounding point are grounded; the signal source is electrically connected to the feeding point and is used for exciting the antenna radiator to generate a resonant mode at least returning to the ground from the electric connection point. On the basis, the electronic equipment provided by the invention has better hand-holding resistance.

Description

Technical Field

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

[0002] With the development of communication technology, electronic devices such as smartphones are able to realize more and more functions, the communication modes of electronic devices are becoming more diversified, and consumers' requirements for the communication quality of electronic devices are becoming higher and higher.

[0003] When a user holds an electronic device, the antenna performance of the electronic device will be greatly reduced. Therefore, it is urgent to provide a solution that can ensure the radiation performance of the antenna device and the electronic device in the head-hand state. Summary of the invention

[0004] The present application provides an electronic device, which can ensure the radiation performance of the electronic device in the head-hand state.

[0005] The present application provides an electronic device, comprising:

[0006] First border;

[0007] an antenna radiator, at least a portion of which is disposed on the first frame, the antenna radiator comprising a first end, a second end, a feeding point, a grounding point and an electrical connection point, the electrical connection point being disposed relative to the first frame, and the electrical connection point and the grounding point being grounded;

[0008] A signal source is electrically connected to the feeding point, and the signal source is used to excite the antenna radiator to generate a resonant mode at least from the electrical connection point back to the ground.

[0009] In the electronic device of the present application, the antenna radiator is provided with a grounding point and an electrical connection point. The signal source can excite the antenna radiator to generate a resonant mode and support the transmission and reception of wireless signals. The resonant mode can excite the antenna radiator to generate a resonant current. Since the antenna radiator is provided with a grounded electrical connection point, the resonant current can at least return to the ground from the electrical connection point. On the one hand, the resonant current path returning to the ground can enhance the radiation efficiency of the antenna radiator, so that even if the user holds the antenna radiator, the radiation efficiency of the antenna radiator affected by the hand can still meet the requirements. On the other hand, the resonant current path returning to the ground can be equivalent to a parallel inductor, and the resonant current path can weaken the capacitive influence on the antenna radiator caused by the user's hand, thereby reducing the influence of the user's hand on the antenna radiator. At the same time, the resonant current path returning to the ground can be away from the first frame and away from the user's hand, which can further reduce the influence of the electronic device's hand holding on the antenna performance of the antenna radiator. Therefore, the antenna radiator of the embodiment of the present application has a very good anti-hand holding performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0011] Figure 1 A first structural schematic diagram of an electronic device provided in an embodiment of the present application.

[0012] Figure 2 for Figure 1 The schematic diagram of the scene in which the electronic device is in a head-hand state is shown.

[0013] Figure 3 for Figure 1 The schematic diagram of the scene in which the electronic device is in another head-hand state is shown.

[0014] Figure 4 A second structural schematic diagram of an electronic device provided in an embodiment of the present application.

[0015] Figure 5 for Figure 4 The diagram shown is a comparison diagram of S-parameter curves of an electronic device in a free space state and a head-hand state.

[0016] Figure 6 for Figure 4 The diagram shown is a comparison diagram of S-parameter curves of an electronic device in a free space state and in another head-hand state.

[0017] Figure 7 for Figure 4 Schematic diagram of the Smith circle of the electronic device shown in the free space state and a head-hand state.

[0018] Figure 8 for Figure 1 and Figure 4 Schematic diagram of the comparison of the Smith circle of the electronic device in a free space state and a head-hand state.

[0019] Fig. 9 for Figure 1 and Figure 4 The figure shows a comparison diagram of S parameter curves of an electronic device when supporting a B5 band wireless signal in a free space state and in a head-hand state.

[0020] Fig.10 for Figure 4 The shown is a schematic diagram of an S-parameter curve of an electronic device supporting wireless signals of different frequency bands in a free space state and a head-hand state.

[0021] Fig.11 for Figure 1 The shown is a schematic diagram of an S-parameter curve of an electronic device supporting wireless signals of different frequency bands in a free space state and a head-hand state.

[0022] Fig.12 for Figure 4 The diagram is a schematic diagram of antenna efficiency curves of an electronic device supporting wireless signals of different frequency bands in a free space state and a head-and-hand state.

[0023] Fig.13 for Figure 1 The diagram is a schematic diagram of antenna efficiency curves of an electronic device supporting wireless signals of different frequency bands in a free space state and a head-and-hand state.

[0024] Fig.14 A third structural schematic diagram of the electronic device provided in an embodiment of the present application.

[0025] Fig.15 for Fig.14 An electrical connection diagram of the electronic device shown.

[0026] Fig.16 for Fig.14 Schematic diagram of the first current distribution of the electronic device shown.

[0027] Fig.17 for Fig.14 Schematic diagram of the second current distribution of the electronic device shown.

[0028] Fig.18 A fourth structural schematic diagram of an electronic device provided in an embodiment of the present application.

[0029] Fig.19 A fifth structural schematic diagram of an electronic device provided in an embodiment of the present application.

[0030] Fig. 20 A sixth structural schematic diagram of an electronic device provided in an embodiment of the present application.

[0031] Fig.21 A seventh structural schematic diagram of an electronic device provided in an embodiment of the present application.

[0032] Fig. 22 This is a schematic diagram of the eighth structure of the electronic device provided in the embodiment of the present application. DETAILED DESCRIPTION

[0033] The following will be combined with the attached examples of the present application Figure 1 To Attachment Fig. 22, the technical solutions in the embodiments of the present application are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0034] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0035] The embodiment of the present application provides an electronic device 10, which can be a device such as a smart phone, a tablet computer, or a gaming device, an augmented reality (AR) device, an automotive device, a data storage device, an audio playback device, a video playback device, a laptop computer, a desktop computing device, etc. Among them, the electronic device 10 can realize a wireless communication function. For example, it can transmit wireless fidelity (Wireless Fidelity, referred to as Wi-Fi) signals, global positioning system (Global Positioning System, referred to as GPS) signals, third-generation mobile communication technology (3rd-Generation, referred to as 3G), fourth-generation mobile communication technology (4th-Generation, referred to as 4G), fifth-generation mobile communication technology (5th-Generation, referred to as 5G), near field communication (Near field communication, referred to as NFC) signals, Bluetooth signals, ultra-wideband communication signals, etc.

[0036] Please refer to Figure 1 , Figure 1 The first structural diagram of the electronic device 10 provided in the embodiment of the present application is as follows. The electronic device 10 may include a first frame 311 , an antenna radiator 110 and a signal source 120 .

[0037] The first frame 311 may be an outer frame of the electronic device 10. At least part of the antenna radiator 110 may be disposed on the first frame 311. The antenna radiator 110 includes a first end 111, a second end 112, a feeding point 113, a grounding point 114, and an electrical connection point 115. The electrical connection point 115 is disposed relative to the first frame 311. The electrical connection point 115 and the grounding point 114 may be directly or indirectly electrically connected to the ground plane 130 to achieve grounding. The signal source 120 is directly or indirectly electrically connected to the feeding point 113. The signal source 120 is used to excite the antenna radiator 110 to generate a resonant mode that returns to the ground at least from the electrical connection point 115.

[0038] It can be understood that at least part of the antenna radiator 110 is disposed on the first frame 311, which may mean that when the first frame 311 includes a conductor structure, at least part of the antenna radiator 110 may include a metal branch formed by the first frame 311 through slits or the like, so that the antenna radiator 110 can reuse the conductor structure of the first frame 311. At this time, the electrical connection point 115 is disposed relative to the first frame 311, which may mean that the electrical connection point 115 is formed on the first frame 311. Alternatively, at least part of the antenna radiator 110 is disposed on the first frame 311, which may mean that at least part of the antenna radiator 110 is connected and carried on the first frame 311, and at least part of the antenna radiator 110 covers a part of the first frame 311; at this time, the electrical connection point 115 is disposed relative to the first frame 311, which may mean that the electrical connection point 115 is disposed on the antenna radiator 110 and the projection of the electrical connection point 115 is located on the first frame 311, and the electrical connection point 115 can cover a part of the first frame 311.

[0039] It can be understood that the first end 111 and the second end 112 can be the two ends of the antenna radiator 110, and the grounding point 114 and the feeding point 113 of the antenna radiator 110 can be set between the first end 111 and the second end 112, and at least one of the grounding point 114 and the feeding point 113 can also be set at the first end 111 or the second end 112, so that one end of the antenna radiator 110 can be a feeding end or a grounding end.

[0040] It can be understood that the ground plane 130 can form a common ground, the potential of the ground plane 130 can be zero, and the ground plane 130 can be formed by, but not limited to, a conductor, a printed circuit, or a metal printed layer in the electronic device 10. The ground point 114 and the electrical connection point 115 of the antenna radiator 110 can be directly or indirectly electrically connected to the ground plane 130, so that the excitation signal provided by the signal source 120 can be returned to the ground from the ground point 114 and the electrical connection point 115. For example, the electrical connection point 115 can be directly physically contacted with the ground plane 130 and electrically connected to achieve return to the ground; for another example, the electrical connection point 115 can also be electrically connected to the ground plane 130 through a circuit structure to achieve return to the ground. The embodiments of the present application are not limited to this.

[0041] It can be understood that the signal source 120 can provide an excitation signal, and the signal source 120 can convert high-frequency excitation current or bound electromagnetic waves into radiated electromagnetic energy to excite the antenna radiator 110 to support wireless signal transmission; at the same time, the antenna radiator 110 can also capture and bind electromagnetic waves in the free space and transmit them to the signal source 120 to form a current signal, so that the antenna radiator 110 supports the reception of wireless signals.

[0042] When the signal source 120 feeds an excitation signal to the antenna radiator 110, the excitation signal can excite the antenna radiator 110 to generate a resonant mode and support the transmission and reception of wireless signals (including transmission and reception). The resonant mode can excite the antenna radiator 110 to generate a resonant current. Since the antenna radiator 110 is provided with a grounded electrical connection point 115, the resonant current can at least return to the ground from the electrical connection point 115; on the one hand, the resonant current path back to the ground can enhance the radiation efficiency of the antenna radiator 110, so that even if the user holds the antenna radiator 110, the radiation efficiency of the antenna radiator 110 affected by the hand can still meet the requirements; on the other hand, the resonant current path back to the ground can be equivalent to a parallel inductor, and the resonant current path can weaken the capacitive influence of the user's hand on the antenna radiator 110, thereby reducing the influence of the user's hand on the antenna radiator 110; at the same time, the resonant current path back to the ground can be away from the first frame 311 and away from the user's hand, which can further reduce the influence of the electronic device 10 on the antenna performance of the antenna radiator 110. Therefore, the antenna radiator 110 of the embodiment of the present application has very good anti-hand-grip performance.

[0043] Among them, please refer to Figure 2 , Figure 2 for Figure 1The electronic device 10 is in a head-hand state, for example, in the Beside Head and HandLift side (BHHL) state, when the user holds the electronic device 10, the ring finger and little finger of the left hand can be placed on the antenna radiator 110. Please refer to Figure 3 , Figure 3 for Figure 1 The schematic diagram of the scene in which the electronic device 10 is in another head-hand state is shown. When the electronic device 10 is in another head-hand state, such as the right-hand (BHHR) state, when the user holds the electronic device 10, the base of his right hand rests on the antenna radiator 110. When the electronic device 10 is in different head-hand states, the influence of the user's hand on the electronic device 10 is different.

[0044] For example, please combine Figure 1 And compare reference Figure 4 , Figure 4 This is a second structural diagram of the electronic device 10 provided in the embodiment of the present application. If the antenna radiator 110 in the embodiment of the present application is not provided with a grounded electrical connection point 115, the user's hand holding may easily interfere with the antenna radiator 110. For example, please refer to Figure 5 , Figure 5 for Figure 4 The diagram shows a comparison of S parameter curves of the electronic device 10 in free space and in a head-hand state (e.g., BHHL state). The free space (FS) state refers to a state in which the electronic device 10 is not held by the user, and the antenna radiator 110 of the electronic device 10 can freely send and receive wireless signals into the free space without being blocked or absorbed by the hands or head. The so-called head-hand state refers to a state in which the electronic device 10 is held by the user or blocked by the user's head, and the wireless signals sent and received by the antenna radiator 110 of the electronic device 10 into the free space can be blocked by the user's hands or head, thus affecting the radiation performance of the antenna radiator 110. Figure 5As shown, curves S1 and S2 are S parameter curves when the antenna radiator 110 supports B5 frequency band (824MHz-894MHz) wireless signals in the FS state and the BHHL state, curves S3 and S4 are S parameter curves when the antenna radiator 110 supports B8 frequency band (880MHz-960MHz) wireless signals in the FS state and the BHHL state, curves S5 and S6 are S parameter curves when the antenna radiator 110 supports B28 frequency band (703MHz to 803MHz) wireless signals in the FS state and the BHHL state, and curves S7 and S8 are S parameter curves when the antenna radiator 110 supports B71 frequency band (617MHz-698MHz) wireless signals in the FS state and the BHHL state. It can be seen from curves S1 to S8 that when the antenna radiator 110 is not provided with a grounded electrical connection point 115, in a head-hand state, for example, the BHHL state, the user places two fingers of his left hand on the antenna radiator 110, resulting in frequency deviations in the B71 band, the B28 band, the B5 band, and the B8 band. Specifically, the B71 band has a frequency deviation of 60 MHz, the B28 band has a frequency deviation of 70 MHz, the B5 band has a frequency deviation of 100 MHz, and the B8 band has a frequency deviation of 120 MHz. That is, when the electronic device 10 is in the BHHL state with two fingers placed on the antenna radiator 110, as the frequency of the band increases, the frequency deviation increases, and all of them are biased toward low frequencies.

[0045] It should be noted that when the electronic device 10 is in another head and hand state, such as the right head and hand (BHHR) state, when the user holds the electronic device 10, the base of his right hand is placed on the antenna radiator 110. Figure 6 , Figure 6 for Figure 4 The S parameter curves of the electronic device 10 shown in FIG. 1 are compared in a free space state and another head-hand state. Figure 6As shown, when the antenna radiator 110 is not provided with a grounded electrical connection point 115, curves S9 and S10 are respectively S parameter curves when the antenna radiator 110 supports B5-band wireless signals in the FS state and the BHHR state, curves S11 and S12 are respectively S parameter curves when the antenna radiator 110 supports B8-band wireless signals in the FS state and the BHHR state, curves S13 and S14 are respectively S parameter curves when the antenna radiator 110 supports B28-band wireless signals in the FS state and the BHHR state, and curves S15 and S16 are respectively S parameter curves when the antenna radiator 110 supports B71-band wireless signals in the FS state and the BHHR state. It can be seen from curves S9 to S16 that in another head-hand state, such as the BHHR state, the user's right hand is placed on the antenna radiator 110, resulting in frequency deviations in the B71 band, the B28 band, the B5 band, and the B8 band. Specifically, the B71 band has a frequency deviation of 70MHz, the B28 band has a frequency deviation of 20MHz, the B5 band has no frequency deviation, and the B8 band has a frequency deviation of 40MHz. Since the BHHR scenario is that the right hand holds the middle of the antenna radiator 110, the intermediate frequency band of the wireless signal supported by the antenna radiator 110 (such as the B28 band or the B5 band) has a smaller frequency deviation due to the more uniform distribution of the current of the antenna radiator 110, and the edge frequency band of the wireless signal supported by the antenna radiator 110 (such as the B71 band and the B8 band) has a current distribution that is more biased to one side and has a larger frequency deviation. But in general, the frequency deviation in the BHHR scenario is smaller than that in the BHHL scenario, but the wireless signal supported by the antenna radiator 110 in the BHHR scenario will still produce frequency deviation.

[0046] Among them, Figure 1 The antenna radiator 110 of the embodiment of the present application is provided with a grounded electrical connection point 115, which can be changed Figure 3 The resonant mode of the electronic device 10 shown is such that Figure 1 The antenna radiator 110 shown can generate a resonant mode at least from the electrical connection point 115 back to the ground, thereby reducing the impact of the user's hand holding on the radiation performance of the antenna radiator 110. For example, please refer to Figure 7 and Figure 8 , Figure 7 for Figure 4 The electronic device 10 is shown as a schematic diagram of a Smith circle in a free space state and a head-hand state, Figure 8 for Figure 1 and Figure 4 The illustrated diagram is a comparative diagram of the Smith circle of the electronic device 10 in a free space state and a head-hand state. Figure 7 The middle curve S17 is Figure 4The Smith circular curve when the antenna radiator 110 of the electronic device 10 shown in the figure does not have an electrical connection point 115 and supports a B5 frequency band wireless signal in the FS state, S18 is Figure 4 The smith circle curve when the antenna radiator 110 of the electronic device 10 shown is not provided with the electrical connection point 115 and supports the B5 frequency band wireless signal in the BHHL state; Figure 8 The middle curve S19 and curve S20 are Figure 4 The smith circle curves when the antenna radiator 110 of the electronic device 10 shown in the figure does not have an electrical connection point 115 and supports B5 frequency band wireless signals in the FS state and the BHHL state, the curves S21 and S22 are respectively Figure 1 The Smith circle curve when the antenna radiator 110 of the electronic device 10 shown in the figure is provided with an electrical connection point 115 and supports B5 frequency band wireless signals in the FS state and the BHHL state. It can be seen from the curves S17 to S22 that when the antenna radiator 110 of the electronic device 10 is not provided with a grounded electrical connection point 115, the electronic device 10 cannot generate a resonant current path through the electrical connection point 115 back to the ground, and the initial original image of the Smith circle of the antenna radiator 110 in the FS state and below is smaller than that in the BHHL state after being held by the hand, and the frequency deviation is larger; and when the antenna radiator 110 of the electronic device 10 is provided with a grounded electrical connection point 115, the electronic device 10 can generate a resonant current path through the electrical connection point 115 back to the ground, and the antenna radiator 110 is equivalent to a parallel inductor element, and the initial original image of the Smith circle of the antenna radiator 110 in the FS state is smaller than that in the BHHL state after being held by the hand, and the frequency deviation is larger; Figure 4 As for the initial original image of the antenna radiator 110, the overall original image becomes larger, which can reduce the frequency deviation caused by the shrinkage of the Smith circle caused by hand-holding, so that even if the user holds the antenna radiator 110, the radiation efficiency of the antenna radiator 110 affected by hand-holding can still meet the requirements; at the same time, the shrinkage of the Smith circle of the antenna radiator 110 in the BHHL state after the grounded electrical connection point 115 is set is also less than the shrinkage of the Smith circle of the antenna radiator 110 in the BHHL state without the grounded electrical connection point 115. The initial original image of the Smith circle of the antenna radiator 110 in the FS state and under the grounded electrical connection point 115 is smaller than that in the BHHL state after hand-holding, and the frequency deviation is larger. At this time, a resonant current path is generated from the electrical connection point 115 back to the ground to the end. This resonant current path is far away from the user's hand, so the influence of hand-holding will be greatly reduced.

[0047] For example, the antenna radiator 110 supports the wireless signal of the B5 frequency band. Fig. 9 , Fig. 9 for Figure 1 and Figure 4The illustrated diagram is a comparison diagram of S parameter curves of the electronic device 10 when supporting a B5 frequency band wireless signal in a free space state and a head-hand state. Fig. 9 The middle curves S23 and S24 are Figure 4 The antenna radiator 110 of the electronic device 10 shown in the figure does not have a grounded electrical connection point 115 when supporting a B5 frequency band wireless signal in the FS state and the BHHL state. Fig. 9 The middle curves S25 and S26 are Figure 1 The antenna radiator 110 of the electronic device 10 shown in the figure is provided with a grounded electrical connection point 115 when supporting a B5 frequency band wireless signal in the FS state and the BHHL state. Comparing curves S23 to S26, in the BHHL state, after the antenna radiator 110 is provided with a grounded electrical connection, the frequency deviation of the B5 frequency band wireless signal supported by the antenna radiator 110 is 6MHz, which is much smaller than the frequency deviation of about 20MHz of the B5 frequency band wireless signal supported by the antenna radiator 110 without a grounded electrical connection. This further proves that the antenna radiator 110 provided with a grounded electrical connection point 115 in the present application has a better anti-hand-grip performance.

[0048] Also, please refer to Fig.10 and Fig.11 , Fig.10 for Figure 4 The electronic device 10 shown is a schematic diagram of an S parameter curve when supporting wireless signals of different frequency bands in a free space state and a head-hand state. Fig.11 for Figure 1 The electronic device 10 shown is a schematic diagram of S parameter curves when supporting wireless signals of different frequency bands in a free space state and a head-hand state. Fig.10 The curves S27 to S29 in FIG. Figure 4 The antenna radiator 110 shown does not have a grounded electrical connection point 115 and supports the S parameter curve of the B5 frequency band, the B8 frequency band, and the B28 frequency band in the FS state; Fig.10 The curves S30 to S32 in FIG. Figure 4 The antenna radiator 110 shown does not have a grounded electrical connection point 115 and supports S-parameter curves of the B5 frequency band, the B8 frequency band, and the B28 frequency band in the BHHL state. Fig.11 The curves S33 to S35 in are respectively Figure 1 The antenna radiator 110 shown is provided with a grounded electrical connection point 115, and an S parameter curve when supporting the B5 frequency band, the B8 frequency band, and the B28 frequency band in the FS state; Fig.11 The curves S36 to S38 in are respectively Figure 1The antenna radiator 110 shown in the figure is provided with a grounded electrical connection point 115 to support the S parameter curve of the B5 frequency band, the B8 frequency band, and the B28 frequency band in the BHHL state. It can be seen from the curves S30 to S38 that the present application Figure 1 After the antenna radiator 110 is electrically connected to the ground, in the BHHL state, the frequency deviation of the B5 band, the B8 band, and the B28 band are greatly reduced, and there is almost no frequency deviation, which improves the hand-held frequency deviation problem. Figure 1 The antenna radiator 110 shown may reduce head-to-hand degradation by reducing the frequency shift of resonance toward lower frequencies.

[0049] Also, please refer to Fig.12 and Fig.13 , Fig.12 for Figure 4 The antenna efficiency curve diagram of the electronic device 10 shown in FIG. 1 is a schematic diagram of antenna efficiency curves when the electronic device 10 supports wireless signals of different frequency bands in a free space state and a head-hand state. Fig.13 for Figure 1 The antenna efficiency curve diagram of the electronic device 10 shown is a schematic diagram of the antenna efficiency curve when supporting wireless signals of different frequency bands in a free space state and a head-hand state. Fig.12 The middle curves S39 to S41 are respectively Figure 4 The antenna radiator 110 shown in the figure does not have a grounded electrical connection point 115, and supports the radiation efficiency parameter curves of the B5 frequency band, the B8 frequency band, and the B28 frequency band in the FS state. Curves S42 to S44 are respectively Figure 4 The antenna radiator 110 shown in the figure does not have a grounded electrical connection point 115 and supports the B5 frequency band, the B8 frequency band, and the B28 frequency band in the FS state; curves S45 to S47 are respectively Figure 4 The antenna radiator 110 shown in the figure does not have a grounded electrical connection point 115 and supports the radiation efficiency parameter curves of the B5 band, the B8 band, and the B28 band in the BHHL state. The curves S48 to S50 are respectively Figure 4 The antenna radiator 110 shown does not have a grounded electrical connection point 115 and supports the system efficiency parameter curve of the B5 band, the B8 band, and the B28 band in the BHHL state. Fig.13 The middle curves S51 to S53 are respectively Figure 1 The antenna radiator 110 shown in the figure has a grounded electrical connection point 115 and supports the B5 frequency band, the B8 frequency band, and the B28 frequency band in the FS state. The curves S54 to S56 are respectively Figure 1 The antenna radiator 110 shown in the figure is provided with a grounded electrical connection point 115, and supports the B5 frequency band, the B8 frequency band, and the B28 frequency band in the FS state; curves S57 to S59 are respectively Figure 1The antenna radiator 110 shown in the figure has a grounded electrical connection point 115 and supports the B5 frequency band, the B8 frequency band, and the B28 frequency band in the BHHL state. The curves S60 to S62 are respectively Figure 1 The antenna radiator 110 shown in the figure is provided with a grounded electrical connection point 115, and supports the system efficiency parameter curve of the B5 frequency band, the B8 frequency band, and the B28 frequency band in the BHHL state. By comparing the curves S39 to S62, it can be seen that Figure 4 The antenna radiator 110 without the grounded electrical connection point 115 shown in the figure has an antenna efficiency reduction of approximately 2.6dB, 2.0dB, and 1.2dB when supporting the B28 frequency band, the B5 frequency band, and the B8 frequency band in the FS state and the BHHL state, respectively. Figure 1 The antenna radiator 110 with the grounded electrical connection point 115 shown in the figure has an antenna efficiency reduction of approximately 2.2dB, 1.0dB, and 0.1dB when supporting the B28 band, B5 band, and B8 band in the FS state and the BHHL state, respectively. Obviously, after the antenna radiator 110 of the present application is provided with a grounded electrical connection, the antenna radiator 110 can greatly improve the anti-hand-grip characteristics, and as the frequency supported by the antenna radiator 110 increases, the antenna degradation caused by hand-grip becomes lower, so that the electronic device 10 of the embodiment of the present application has excellent anti-hand-grip performance.

[0050] In the electronic device 10 of the embodiment of the present application, the antenna radiator 110 is provided with a grounding point 114 and an electrical connection point 115. The signal source 120 can excite the antenna radiator 110 to generate a resonant mode and support the transmission and reception of wireless signals. The resonant mode can excite the antenna radiator 110 to generate a resonant current. Since the antenna radiator 110 is provided with a grounded electrical connection point 115, the resonant current can at least return to the ground from the electrical connection point 115. On the one hand, the resonant current path returning to the ground can enhance the radiation efficiency of the antenna radiator 110, so that even if the user When the antenna radiator 110 is held by hand, the radiation efficiency of the antenna radiator 110 affected by the hand holding can still meet the requirements; on the other hand, the resonant current path of the return ground can be equivalent to a parallel inductor, and the resonant current path can weaken the capacitive influence on the antenna radiator 110 caused by the user's hand holding, thereby reducing the influence of the user's hand holding on the antenna radiator 110; at the same time, the resonant current path of the return ground can be far away from the first frame 311 and far away from the user's hand holding, which can further reduce the influence of the hand holding of the electronic device 10 on the antenna performance of the antenna radiator 110. Therefore, the antenna radiator 110 of the embodiment of the present application has very good anti-hand holding performance.

[0051] Please refer again to Figure 1The grounding point 114 of the antenna radiator 110 can be set at the second end 112, the feeding point 113 can be set in the middle of the antenna radiator 110, the radiation section between the first end 111 of the antenna radiator 110 and the feeding point 113 can be set on the first frame 311, and the electrical connection point 115 can be set in the area between the first end 111 and the feeding point 113.

[0052] It can be understood that the first distance from the feed point 113 to the first end 111 can be approximately equal to the second distance from the feed point 113 to the second end 112, the first distance can be equal to, greater than or less than the second distance, and the ratio of the first distance to the second distance can be between two-thirds and two-thirds, so that the feed point 113 can be set in the middle of the antenna radiator 110.

[0053] It is understandable that the electrical connection point 115 can be set in an area between the first end 111 and the feeding point 113 that is closer to the first end 111, so that the electrical connection point 115 can more easily divert the resonant current near the first end 111 to the ground plane 130 and further make more resonant current away from the user's hand. For example, the first distance between the electrical connection point 115 of the antenna radiator 110 and the first end 111 can be between one sixteenth and one eighth of the wavelength of the wireless signal supported by the resonant mode generated by the antenna radiator 110 under the excitation of the signal source 120, and the first distance can be greater than or equal to one sixteenth of the wavelength distance of the wireless signal and less than or equal to one eighth of the wavelength distance of the wireless signal. At this time, the antenna radiator 110 can further improve the anti-hand-grip performance of the electronic device 10.

[0054] The feeding point 113 of the antenna radiator 110 of the embodiment of the present application is arranged in the middle area, the grounding point 114 is arranged at the second end 112, and the electrical connection point 115 is arranged between the feeding point 113 and the first end 111 and in the area closer to the first end 111. When the signal source 120 feeds an excitation signal to the antenna radiator 110, the resonant current can return to the ground from the electrical connection point 115 closer to the first end 111. The resonant current path can also cause the antenna radiator 110 to generate an electric field weak point area at the first end 111 (and its vicinity) (the electric field weak point area may refer to an electric field strength value in this area that is not greater than the electric field strength in other areas), and the electric field weak point area is also a current strong point area. When the user holds the electronic device 10, since the first end 111 is an electric field weak point area, even if the user fully holds the first end 111 of the antenna radiator 110, the radiation performance of the antenna radiator 110 is less affected by the user's hand holding, the radiation efficiency of the antenna radiator 110 decreases less, and the antenna radiator 110 has better anti-hand-holding performance.

[0055] Please combine Figure 1 Please also refer to Fig.14 , Fig.14 This is a third structural diagram of the electronic device 10 provided in the embodiment of the present application. The electronic device 10 may further include a switching circuit 140 .

[0056] The first switching circuit 140 can be directly or indirectly electrically connected between the ground point 114 and the ground plane 130. One end of the switching circuit 140 is electrically connected to the ground point 114, and the other end of the switching circuit 140 is electrically connected to the ground plane 130 to achieve grounding. The antenna device can change the working state of the switching circuit 140, and the switching circuit 140 can control the antenna radiator 110 to support the transmission and reception of wireless signals of different frequency bands.

[0057] For example, the switching circuit 140 may include at least a first working state and a second working state. When the switching circuit 140 is in the first working state, the antenna radiator 110 can support wireless signals of the first frequency band in a half-wavelength mode; when the switching circuit 140 is in the second working state, the antenna radiator 110 can support wireless signals of the second frequency band in a quarter-wavelength mode.

[0058] It is understandable that the switching circuit 140 may be formed by connecting one or more capacitors, inductors, switches, and other elements in series or in parallel.

[0059] Please combine Fig.14 Please also refer to Fig.15 , Fig.15 for Fig.14 An electrical connection diagram of the electronic device 10 is shown. The switching circuit 140 may include at least a first switching branch 141 and a second switching branch 142. One end of the first switching circuit 140 may be electrically connected to the ground point 114, and the other end may be electrically connected to the ground plane 130 and grounded. One end of the second switching circuit 140 may be electrically connected to the ground point 114, and the other end may be electrically connected to the ground plane 130 and grounded.

[0060] Understandably, please combine Fig.14 , Fig.15 Please also refer to Fig.16 , Fig.16 for Fig.14The first current distribution diagram of the electronic device 10 is shown. The switching circuit 140 can conduct the electrical connection between the first switching branch 141 and the antenna radiator 110 and the ground plane 130, so that the antenna radiator 110 generates a first resonance mode, and the first resonance current generated by the excitation of the first resonance mode can flow from the feeding point 113 to the first end 111, and from the feeding point 113 to the second end 112, and the first resonance current can also return to the ground from the electrical connection point 115. At this time, the first switching branch 141 can be grounded through a large inductance element, so that the first switching branch 141 can be equivalent to an open circuit, the antenna radiator 110 can be a T-type antenna mode, the antenna radiator 110 can support wireless signals in the first frequency band in a half-wavelength mode, and the antenna radiator 110 can support wireless signals in the first frequency band under the action of the first resonance mode, for example, it can support low-frequency signals in the first frequency band, including but not limited to low-frequency signals in the B28 frequency band.

[0061] Understandably, please combine Fig.14 , Fig.15 Please also refer to Fig.17 , Fig.17 for Fig.14 The second current distribution diagram of the electronic device 10 shown. The switching circuit 140 can also conduct the electrical connection between the second switching branch 142 and the antenna radiator 110 and the ground plane 130, so that the antenna radiator 110 generates a second resonant mode, and the second resonant current generated by the excitation of the second resonant mode can flow in the direction from the second end 112 to the first end 111, and the second resonant current can also return to the ground from the electrical connection point 115. At this time, the second switching branch 142 can be grounded through a small inductor element, so that the second switching branch 142 can be equivalent to a short circuit, the antenna radiator 110 can be an IFA antenna mode, the antenna radiator 110 can support wireless signals in the second frequency band in a quarter-wavelength mode, and the antenna radiator 110 can support wireless signals in the second frequency band under the action of the second resonant mode, and the second frequency band can be different from the first frequency band. For example, the antenna radiator 110 can support low-frequency signals in the second frequency band under the action of the second resonant mode, including but not limited to low-frequency signals in the B5 frequency band and the B8 frequency band.

[0062] It is understandable that the switching circuit 140 may further include more switching branches. For example, when the antenna radiator 110 needs to cover wireless signals of more sub-bands, the switching circuit 140 may set more switching branches so that when the switching circuit 140 switches between different switching branches, the antenna radiator 110 may switch between different sub-bands. For example, the first switching circuit 140 of the embodiment of the present application may include four switching branches that enable the antenna radiator 110 to switch between four sub-bands.

[0063] It is understandable that the switching circuit 140 may further include a switch element to select the first switching branch 141 or the second switching branch 142 by switching on and off. Of course, the switching circuit 140 may also not include a switch element, and the first switching branch 141 and the second switching branch 142 may be circuit structures that are turned on or off under different parameter conditions. The specific structure of the switching circuit 140 is not limited in the embodiment of the present application.

[0064] It is understandable that when the antenna radiator 110 supports a low frequency signal (Low frequency band, referred to as LB, the frequency range may be below 1000MHz), in the spectrum, the first frequency band may be separated from the second frequency band, the first frequency band may partially overlap with the second frequency band, and the first frequency band may be completely included or completely included in the second frequency band. It should be noted that the above is only an exemplary description of the first frequency band, the second frequency band, and the wireless signal, which may also be other frequency bands. The embodiments of the present application are not limited to this.

[0065] It should be noted that the above is only an exemplary description of the working mode of the antenna radiator 110. The antenna radiator 110 of the embodiment of the present application may also work in other modes. The embodiment of the present application does not limit the specific mode of the antenna radiator 110.

[0066] The electronic device 10 of the embodiment of the present application is provided with a switching circuit 140. Under the action of the switching circuit 140, the antenna radiator 110 can support the transmission and reception of wireless signals in more frequency bands, which can broaden the bandwidth of the antenna radiator 110 and improve the adaptability of the electronic device 10.

[0067] Among them, please refer to Fig.18 , Fig.18 This is a seventh structural diagram of the electronic device 10 provided in the embodiment of the present application. The electronic device 10 may further include a tuning circuit 150 .

[0068] The tuning circuit 150 can switch between an electrically connected state between the signal source 120 and the antenna radiator 110, and a short circuit state between the signal source 120 and the antenna radiator 110. The switching circuit 140 of the electronic device 10 may include at least one switching branch, one end of each switching branch is grounded, and the other end can switchably connect or disconnect the connection with the antenna radiator 110 to switch the frequency selection state of the electronic device 10 for the target frequency band. Among them, the electronic device 10 can support the wireless signal transmission and reception of the target frequency band in different frequency selection states in the free space state and the head-hand state; when in the free space state, the electronic device 10 controls the tuning circuit 150 to switch to the short circuit state; when in the head-hand state, the electronic device 10 controls the tuning circuit 150 to switch between the short circuit state and the electrically connected state according to the frequency selection state.

[0069] It can be understood that the frequency selection state of the target frequency band refers to the state of the electronic device 10 when the switching circuit 140 adjusts at least one switching branch so that the antenna radiator 110 supports the transmission and reception of wireless signals in the target frequency band under the tuning of the switching branch. In this frequency selection state, the antenna radiator 110 can support the transmission and reception of wireless signals in the target frequency band.

[0070] When the switching circuit 140 includes multiple frequency selection states, the antenna radiator 110 can support the wireless signal reception and transmission of different sub-bands within the target frequency band under different frequency selection states of the switching circuit 140. For example, the other end of at least one switching branch can be electrically connected to the antenna radiator 110 under the switching of the switch element so that the switching branch is electrically connected to the antenna radiator 110, the target frequency band can be in a frequency selection state corresponding to a sub-band within the target frequency band, and the antenna radiator 110 supports the wireless signal reception and transmission of the sub-band. For another example, the other end of at least one switching branch can be not electrically connected to the antenna radiator 110 under the switching of the switch element so that the switching branch is disconnected from the electrical connection with the antenna radiator 110, the target frequency band can be in another frequency selection state corresponding to another sub-band and the antenna radiator 110 supports the wireless signal reception and transmission of the other sub-band. The embodiment of the present application does not limit the specific adjustment method of the frequency selection state of the target frequency band.

[0071] When the switching circuit 140 adjusts at least one switching branch so that the electronic device 10 is in a frequency selection state for a target frequency band, the antenna radiator 110 can support the transmission and reception of wireless signals in the target frequency band (e.g., the first frequency band) when the electronic device 10 is in the FS state, and can support the transmission and reception of wireless signals in the target frequency band (e.g., the second frequency band) after frequency deviation when the electronic device 10 is in the head-hand state. The second frequency band and the first frequency band can be the frequency bands of wireless signals supported by the antenna radiator 110 when it is in the FS state and the head-hand state of the electronic device 10 under the same tuning parameters, and the second frequency band can be frequency-deviation along a first direction compared to the first frequency band and has a first frequency deviation amount.

[0072] It can be understood that the head-hand state of the electronic device 10 can affect the radiation efficiency of the antenna radiator 110, and can also affect the resonant frequency of the antenna radiator 110, so that the second frequency band of the wireless signal supported by the antenna radiator 110 in the head-hand state of the electronic device 10 is different from the first frequency band supported by it in the FS state of the electronic device 10, and the second frequency band can be the frequency band after the first frequency band undergoes frequency deviation.

[0073] It can be understood that the target frequency band (e.g., the first frequency band) may include at least one of the first sub-frequency band, the second sub-frequency band, and the third sub-frequency band, and the target frequency band may be switched between different frequency selection states to correspond to the first sub-frequency band, the second sub-frequency band, or the third sub-frequency band. Among them, in the first-hand state, the frequency band after the target frequency band is frequency-shifted (e.g., the second frequency band) may include at least one of the fourth sub-frequency band, the fifth sub-frequency band, and the sixth sub-frequency band. Under the action of the switching circuit 140, the antenna radiator 110 may support the first sub-frequency band, the second sub-frequency band, or the third sub-frequency band when the electronic device 10 is in the FS state. Accordingly, in the first-hand state of the electronic device 10, the antenna radiator 110 may have the first sub-frequency band frequency-shifted to the fourth sub-frequency band, the second sub-frequency band frequency-shifted to the fifth sub-frequency band, and the third sub-frequency band frequency-shifted to the sixth sub-frequency band. Exemplarily, the first sub-frequency band may be, but is not limited to, the B5 band or the B8 band, and the fourth sub-frequency band may be, a frequency band after the B5 band or the B8 band has a frequency deviation; the second sub-frequency band may be, but is not limited to, the B71 band, and the fifth sub-frequency band may be, a frequency band after the B71 band has a frequency deviation; the third sub-frequency band may be, but is not limited to, the B28 band, and the sixth sub-frequency band may be, a frequency band after the B28 band has a frequency deviation.

[0074] It should be noted that the frequency deviation directions of different sub-frequency bands may be the same or different; the frequency deviation amounts of different sub-frequency bands may also be the same or different. For example, a certain sub-frequency band may be frequency-deviation toward the low frequency direction and have a certain frequency deviation amount, and another sub-frequency band may be frequency-deviation toward the high frequency direction and have another frequency deviation amount. The embodiments of the present application do not limit the specific frequency deviation directions and specific frequency deviation amounts of different sub-frequency bands.

[0075] Among them, the tuning circuit 150 can be connected in series or in parallel between the signal source 120 and the antenna radiator 110, so that the tuning circuit 150 can be electrically connected between the signal source 120 and the antenna radiator 110, the tuning circuit 150 can be in an electrically connected state, and the tuning circuit 150 can tune the target frequency band of the wireless signal supported by the antenna radiator 110.

[0076] It is understandable that the two ends of the tuning circuit 150 may also be short-circuited by a straight path, and the straight path is a device with zero impedance or very small impedance, such as but not limited to a wire. One end of the straight path may be electrically connected between the signal source 120 and one end of the tuning circuit 150, and the other end of the straight path may be electrically connected between the other end of the tuning circuit 150 and the signal source 120. The two ends of the tuning circuit 150 may be short-circuited between the signal source 120 and the antenna radiator 110, so that the signal source 120 is not electrically connected to the antenna radiator 110 through the tuning circuit 150, and the excitation current provided by the signal source 120 may not pass through the tuning circuit 150 but directly flow to the antenna radiator 110 through the straight path, and the tuning circuit 150 may be in a short-circuit state, and the tuning circuit 150 cannot tune the wireless signal supported by the antenna radiator 110.

[0077] It should be noted that the tuning circuit 150 can be short-circuited between the antenna radiator 110 and the signal source 120 under the action of electrical structures such as a straight-through path; of course, the tuning circuit 150 can also be a circuit with adjustable parameters. By changing the parameters of the tuning circuit 150, the two ends of the tuning circuit 150 can be short-circuited between the antenna radiator 110 and the signal source 120. The specific method for the tuning circuit 150 to achieve switching between the electrical connection state and the short-circuit state in the embodiment of the present application is not limited.

[0078] It is understandable that the tuning circuit 150 of the embodiment of the present application may be an AOL structure (Advance open loop), which is a structure for adjusting matching or changing the equivalent resonance length of the antenna by switching a switch. The tuning circuit 150 may switch between an electrically connected state and a short circuit state to tune the frequency of the wireless signal supported by the antenna radiator 110 and change the frequency deviation of the wireless signal supported by the antenna radiator 110.

[0079] Among them, the frequency selection state of the target frequency band is associated with the frequency deviation amount of the target frequency band supported by the antenna radiator 110 in the FS state and the head-hand state, and the control operation of the electronic device 10 on the tuning circuit 150 is associated with the frequency deviation amount of the target frequency band supported by the antenna radiator 110 in the FS state and the head-hand state after the control operation. Therefore, the frequency selection state of the target frequency band is associated with the operation of the electronic device 10 controlling the tuning circuit 150 to switch between the short-circuit state and the electrical connection state. The electronic device 10 can pre-establish a mapping relationship between the frequency selection state of the target frequency band and the control operation of the electronic device 10 on the tuning circuit 150, so that when in the head-hand state, the electronic device 10 can at least control the tuning circuit 150 to switch between the short-circuit state and the electrical connection state according to the frequency selection state.

[0080] Exemplarily, the target frequency band includes a first sub-frequency band (eg, B5 frequency band or B8 frequency band). When in the head-hand state and the frequency selection state of the target frequency band corresponds to the first sub-frequency band, the electronic device 10 can control the tuning circuit 150 to switch to the electrical connection state. It can be understood that when in the FS state and the switching circuit 140 is in the first adjustment state corresponding to the first sub-frequency band, the electronic device 10 can switch to the frequency selection state for the first sub-frequency band, and the antenna radiator 110 can support the first sub-frequency band; when the first adjustment state of the switching circuit 140 is maintained and the electronic device 10 is in the head-hand state, the electronic device 10 is still in the frequency selection state for the first sub-frequency band, and the antenna radiator 110 can support the frequency band after the frequency deviation of the first sub-frequency band, and there is a first sub-frequency deviation between the frequency band and the first sub-frequency band; when the electronic device 10 is in the head-hand state (at this time the switching circuit 140 maintains the first adjustment state) and the electronic device 10 controls the tuning circuit 150 to switch to the electrical connection state, the electronic device 10 is still in the frequency selection state for the first sub-frequency band, and the antenna radiator 110 can support another frequency band after the frequency deviation of the first sub-frequency band, and there is a second sub-frequency deviation between the frequency band and the first sub-frequency band, and the second sub-frequency deviation can be less than the first sub-frequency deviation. For example, the antenna radiator 110 can support a first sub-frequency band of 850MHz, and can support a frequency band of 700MHz in the head-hand state of the electronic device 10, and the first sub-frequency deviation can be 150MHz; after the control tuning circuit 150 is switched to the electrical connection state, the antenna radiator 110 can support a frequency band of 840MHz, which is between 850MHz and 700MHz, and the second sub-frequency deviation can be 10MHz; the radiation efficiency of the antenna radiator 110 supporting the frequency band of 840MHz can be higher than the radiation efficiency of the antenna radiator 110 supporting the frequency band of 700MHz. The antenna radiator 110 can have better radiation performance in the head-hand state.

[0081] As another example, the target frequency band also includes a second sub-frequency band (for example, the B71 frequency band). When in the head-hand state and the frequency selection state of the target frequency band corresponds to the second sub-frequency band, the electronic device 10 can control the tuning circuit 150 to switch to a short-circuit state. It can be understood that when in the FS state and the switching circuit 140 is in the second adjustment state corresponding to the second sub-frequency band, the electronic device 10 can switch to the frequency selection state for the second sub-frequency band, and the antenna radiator 110 can support the second sub-frequency band; when the second adjustment state of the switching circuit 140 is maintained and the electronic device 10 is in the head-hand state, the electronic device 10 is still in the frequency selection state for the second sub-frequency band, and the antenna radiator 110 can support the frequency band after the frequency deviation of the second sub-frequency band, and there is a third sub-frequency deviation amount between this frequency band and the second sub-frequency band; When the electronic device 10 is in the head-hand state (at this time the switching circuit 140 maintains the second adjustment state) and the electronic device 10 controls the tuning circuit 150 to switch to the short-circuit state, the electronic device 10 is still in the frequency selection state for the second sub-frequency band. At this time, the second sub-frequency band has a fourth sub-frequency deviation. Since the tuning circuit 150 after the short-circuit state basically does not affect the frequency band supported by the antenna radiator 110, the antenna radiator 110 can still support the frequency band after the aforementioned second sub-frequency band frequency deviation, and thus, the fourth sub-frequency deviation can be equal to the aforementioned third sub-frequency deviation. It can be understood that the second sub-frequency band can be, but is not limited to, the B71 frequency band. When the antenna radiator 110 supports the B71 frequency band, the third sub-frequency deviation of the first wireless signal supported by the antenna radiator 110 in the FS state and the first-hand state is small, for example, only 60 MHz. At this time, if the tuning circuit 150 is controlled to be in an electrically connected state, the tuning circuit 150 may make the frequency band supported by the antenna radiator 110 much larger than the frequency deviation of the second sub-frequency band (for example, 140 MHz) The third sub-frequency deviation, at this time, the tuning circuit 150 in the electrically connected state will affect the wireless signal supported by the antenna radiator 110. Therefore, when the target frequency band is in the second frequency selection state for the B71 frequency band, the electronic device 10 can at least control the tuning circuit 150 to switch to the short-circuit state according to the second frequency selection state in the first-hand state, and can also ensure the radiation performance of the antenna radiator 110 in the first-hand state.

[0082] Also exemplarily, the target frequency band also includes a third sub-frequency band (for example, the B28 frequency band); when in the head-hand state and the frequency selection state of the target frequency band corresponds to the third sub-frequency band, the electronic device 10 controls the first tuning circuit 150 to switch to a state corresponding to the second sub-frequency band, and controls the tuning circuit 150 to switch to an electrically connected state. It can be understood that when in the FS state and the switching circuit 140 is in the third adjustment state corresponding to the third sub-frequency band, the electronic device 10 can switch to the frequency selection state for the third sub-frequency band, and the antenna radiator 110 can support the third sub-frequency band; when the third adjustment state of the switching circuit 140 is maintained and the electronic device 10 is in the head-hand state, the electronic device 10 is still in the frequency selection state for the third sub-frequency band, and the antenna radiator 110 can support the sixth sub-frequency band after the frequency deviation of the third sub-frequency band, and there is a fifth sub-frequency deviation between the sixth sub-frequency band and the third sub-frequency band; when in the head-hand state, the electronic device 10 can at least control the adjustment state of the switching circuit 140 to switch to the target adjustment state corresponding to the target sub-frequency band, and control the tuning circuit 150 to switch to the electrical connection state, and the electronic device 10 can still switch to the frequency selection state for the third sub-frequency band, at this time, the antenna radiator 110 can support another frequency band after the third sub-frequency band, and there is a sixth sub-frequency deviation between the frequency band and the third sub-frequency band, and the sixth sub-frequency deviation can be less than the fifth sub-frequency deviation. It can be understood that when the antenna radiator 110 supports the third sub-frequency band, the fifth sub-frequency deviation of the first wireless signal supported by the antenna radiator 110 in the FS state and the head-hand state (the head-hand state here is the adjustment state of the switching circuit 140 is not adjusted, and the tuning circuit 150 is in the short-circuit state) is between the first sub-frequency deviation and the target sub-frequency deviation. At this time, if the tuning circuit 150 is controlled to be in an electrically connected state, the tuning circuit 150 may make the frequency band supported by the antenna radiator 110 greater than the frequency deviation of the sixth sub-frequency band compared to the third sub-frequency band. At this time, the electronic device 10 can compensate for the extra frequency deviation caused by the tuning circuit 150 switching to the electrical connection state by adjusting the adjustment state of the switching circuit 140 to the state corresponding to the target sub-frequency band and controlling the tuning circuit 150 to switch to the electrical connection state, so that the frequency band after another frequency deviation of the third sub-frequency band finally supported by the antenna radiator 110 and the third sub-frequency band have a sixth sub-frequency deviation less than the fifth sub-frequency deviation, which can ensure the radiation performance of the antenna radiator 110 in the head-hand state.

[0083] In the electronic device 10 of the embodiment of the present application, at least one switching branch of the switching circuit 140 can switchably connect or disconnect the connection with the antenna radiator 110 to switch the frequency selection state of the electronic device 10 for the target frequency band, so that at least one switching branch can tune the wireless signal of the target frequency band supported by the antenna radiator 110; the tuning circuit 150 can be electrically connected between the signal source 120 and the antenna radiator 110 and be in an electrically connected state, or it can be short-circuited between the signal source 120 and the antenna radiator 110 and be in a short-circuit state; when the electronic device 10 is in the head-hand state, the electronic device 10 can at least control the tuning circuit 150 to switch between the short-circuit state and the electrical connection state according to the frequency selection state of the target frequency band, and the electronic device 10 can select a suitable state of the tuning circuit 150 according to the frequency selection state of the target frequency band supported by the antenna radiator 110, so that the state of the tuning circuit 150 is more adapted to the frequency selection state of the target frequency band, and the radiation performance of the antenna radiator 110 in the head-hand state of the electronic device 10 can be guaranteed.

[0084] Among them, please refer to Figures 14 to 18 The electronic device 10 may further include a first matching circuit 160 ( Fig.18 The electronic device 10 shown in FIG. 1 may also be provided with a first matching circuit 160 ).

[0085] The first matching circuit 160 may be directly or indirectly electrically connected between the signal source 120 and the feeding point 113 . The first matching circuit 160 may perform impedance matching adjustment on the excitation signal provided by the signal source 120 to improve the radiation performance of the antenna radiator 110 .

[0086] It can be understood that the first matching circuit 160 may include any combination of components such as capacitors, inductors, switches, etc., and the embodiment of the present application does not limit the specific structure of the first matching circuit 160.

[0087] The signal source 120 of the embodiment of the present application performs impedance matching adjustment through a matching circuit, which can improve the radiation performance of the antenna device 100 and reduce the difficulty of debugging.

[0088] Among them, the antenna radiator 110 of the embodiment of the present application can appropriately adjust the positions of the feeding point 113, the grounding point 114, and the electrical connection point 115, so that the antenna radiator 110 can still have better anti-hand-grip performance.

[0089] Please refer to Fig.19 , Fig.19The sixth structural diagram of the electronic device 10 provided in the embodiment of the present application. The feeding point 113 can be set at the second end 112 of the antenna radiator 110, the grounding point 114 can be set in the middle of the antenna radiator 110, the radiation section between the first end 111 and the grounding point 114 on the antenna radiator 110 can be set on the first frame 311, and the electrical connection point 115 can be set in the radiation section area between the first end 111 and the grounding point 114.

[0090] Understandably, Fig.19 The layout of the feeding point 113 and the grounding point 114 of the antenna radiator 110 is shown in FIG. Fig.14 The layout of the feeding point 113 and the grounding point 114 of the antenna radiator 110 shown in the figure is swapped. At this time, the feeding point 113 is set at the second end 112 of the antenna radiator 110, and the signal source 120 can excite the antenna radiator 110 to support the transmission and reception of wireless signals in a quarter-wavelength mode. For example, the excitation current generated on the antenna radiator 110 by the signal source 120 can flow along the second end 112 toward the first end 111 and return to the ground from the electrical connection point 115.

[0091] It can be understood that the grounding point 114 can be set in the middle of the antenna radiator 110, which can mean that the ratio of the third distance between the grounding point 114 and the first end 111 to the fourth distance between the grounding point 114 and the second end 112 can be between two-thirds and two-thirds, so that the grounding point 114 can be roughly set in the middle area of ​​the antenna radiator 110.

[0092] It is understood that the grounding point 114 can be as follows Fig.19 The area shown is set between the grounding point 114 and the first end 111 and close to the first end 111. The grounding point 114 can also be set in the area between the first end 111 and close to the grounding point 114, or the grounding point 114 can also be set in the midpoint area between the first end 111 and the grounding point 114, and the embodiments of the present application are not limited to this.

[0093] It is understandable that when the electrical connection point 115 of the antenna radiator 110 is directly grounded, the grounding point 114 of the antenna radiator 110 can be grounded through the switching circuit 140 to prevent the resonant current from directly returning to the ground from the grounding point 114 and not flowing to the electrical connection point 115. Of course, the electrical connection point 115 of the antenna radiator 110 may not be directly grounded. For example, please refer to Fig. 20 , Fig. 20The seventh structural diagram of the electronic device 10 provided in the embodiment of the present application, the electronic device 10 may further include a second matching circuit 170. One end of the second matching circuit 170 is electrically connected to the electrical connection point 115, and the other end is electrically connected to the ground plane 130 to achieve grounding. The second matching circuit 170 can adjust the resonant mode. Among them, the second matching circuit 170 can be, but is not limited to, an inductive load element with a small inductance value (an inductive load element with an inductance value less than 10 nanohenries), for example, an inductive element with a small inductance value. The inductive load element with a small inductance value is equivalent to a short circuit for a low-frequency signal. The antenna radiator 110 can still form a return path to the ground through the electrical connection point 115 to improve the anti-hand-grip performance of the electronic device 10. At the same time, when supporting signals of the same frequency, the small inductance element can also make the branch length of the antenna radiator 110 shorter, thereby realizing the miniaturization design of the antenna radiator 110. Furthermore, when the second matching circuit 170 may include multiple matching branches, when the switching circuit 140 switches between different switching branches so that the electronic device 10 supports wireless signals of different frequency bands, the electronic device 10 may also control the second matching circuit 170 to select a suitable matching branch back to the ground, so that under the action of the second matching circuit 170, the antenna radiator 110 can maintain a suitable resonant mode and support wireless signals of the required frequency band.

[0094] It is understandable that the second matching circuit 170 may include, but is not limited to, a circuit structure formed by one or more inductors, capacitors, switches, etc. connected in series or in parallel. The specific structure of the second matching circuit 170 is not limited in the present embodiment.

[0095] In the electronic device 10 of the embodiment of the present application, the feeding point 113 is arranged at the second end 112 of the antenna radiator 110, the grounding point 114 is arranged at the middle of the antenna radiator 110, the electrical connection point 115 is arranged between the first end 111 and the grounding point 114, the radiating section of the antenna radiator 110 arranged at the first frame 311 can be returned to the ground from the grounding point 114 and the electrical connection point 115, and the radiating section of the antenna radiator 110 arranged at the first frame 311 can have two return paths to the ground, and both of these return paths can be far away from the first frame 311 and far away from the user's hand, which can further reduce the impact of the hand holding of the electronic device 10 on the antenna performance of the antenna radiator 110, and can further improve the anti-hand holding performance of the antenna radiator 110. At the same time, under the joint action of the first switching circuit 140, the first matching circuit 160 and the second matching circuit 170, the antenna radiator 110 can also have better radiation performance when switching between different frequency bands, and the frequency band range covered by the antenna radiator 110 is wider.

[0096] Based on the structure of the electronic device 10, please refer to Fig.21 , Fig.21This is an eighth structural diagram of the electronic device 10 provided in the embodiment of the present application. The electronic device 10 may further include a display screen 200, a middle frame 300, a circuit board 400, a battery 500 and a rear housing 600.

[0097] The display screen 200 is disposed on the middle frame 300 to form a display surface of the electronic device 10 for displaying information such as images and texts. The display screen 200 may include a display device such as a liquid crystal display (LCD) or an organic light-emitting diode (OLED) display screen.

[0098] The middle frame 300 includes a frame 310 and a middle plate 320. The middle plate 320 is a thin plate or sheet structure, and the frame 310 can form the outer frame 310 of the electronic device 10. The middle plate 320 is used to provide support for the electronic devices or functional components in the electronic device 10, so as to install the electronic devices and functional components of the electronic device 10 together. For example, grooves, protrusions, through holes and other structures can be provided on the middle plate 320 to facilitate the installation of electronic devices or functional components of the electronic device 10. It can be understood that the materials of the frame 310 and the middle plate 320 may include metal or plastic.

[0099] The circuit board 400 is arranged on the middle frame 300 for fixing, and the circuit board 400 is sealed inside the electronic device 10 through the rear shell 600. The circuit board 400 may be integrated with a processor, and may also be integrated with one or more functional components such as an earphone interface, an acceleration sensor, a gyroscope, and a motor. At the same time, the display screen 200 may be electrically connected to the circuit board 400 so that the display of the display screen 200 is controlled by the processor on the circuit board 400.

[0100] The battery 500 is disposed on the middle frame 300, and the battery 500 is sealed inside the electronic device 10 through the rear case 600. At the same time, the battery 500 is electrically connected to the circuit board 400 so that the battery 500 can power the electronic device 10. Among them, a power management circuit may be disposed on the circuit board 400. The power management circuit is used to distribute the voltage provided by the battery 500 to various electronic devices in the electronic device 10.

[0101] The rear shell 600 is connected to the middle frame 300. For example, the rear shell 600 can be attached to the middle frame 300 by an adhesive such as a double-sided adhesive to achieve connection with the middle frame 300. The rear shell 600 is used to seal the electronic devices and functional components of the electronic device 10 inside the electronic device 10 together with the middle frame 300 and the display screen 200 to protect the electronic devices and functional components of the electronic device 10.

[0102] It can be understood that the above is only an illustrative example of the electronic device 10. The electronic device 10 of the embodiment of the present application may also include components such as a camera, a sensor, and an acoustic-to-electric conversion device. These components can be found in the description of the relevant technology and will not be repeated here.

[0103] Among them, please refer to Fig. 22 , Fig. 22 This is a ninth structural diagram of an electronic device 10 provided in an embodiment of the present application. The electronic device 10 may include a first frame 311 and a second frame 312 that are connected to each other.

[0104] The first frame 311 and the second frame 312 may be outer frames of the middle frame 300. The first frame 311 and the second frame 312 may be bent and connected so that the first frame 311 and the second frame 312 are not collinear. The length of the first frame 311 may be greater than the length of the second frame 312, the first frame 311 may be the long side of the electronic device 10, and the second frame 312 may be the short side of the electronic device 10.

[0105] It is understandable that the electronic device 10 may further include other frames 310, such as a third frame 313 and a fourth frame 314, wherein the third frame 313 may be arranged opposite to the first frame 311, and the fourth frame 314 may be arranged opposite to the second frame 312, so that the middle frame 300 may be a rectangular frame. It should be noted that the middle frame 300 may also be in other shapes, and the specific structure of the middle frame 300 is not limited in the embodiment of the present application.

[0106] It can be understood that all of the antenna radiators 110 can be set on the first frame 311, so that the antenna radiator 110 can be a long strip radiator along the first frame 311, or, part of the antenna radiator 110 can be set on the first frame 311, and another part of the antenna radiator 110 can be set on the second frame 312. In this case, the antenna radiator 110 can be a radiator with a bent shape.

[0107] It is understandable that the length of the radiation section of the antenna radiator 110 disposed on the first frame 311 may be equal to or less than the length of the radiation section of the antenna radiator 110 disposed on the second frame 312 (for example, Figure 1 As shown), at this time, the antenna radiator 110 can form the lower antenna layout of the electronic device 10. Since the length of the antenna radiator 110 set on the first frame 311 is short, it is not easy for the user to hold the antenna radiator 110, which can further improve the radiation performance of the antenna radiator 110.

[0108] It is understandable that if Fig. 22As shown, the length of the radiating section of the antenna radiator 110 set in the first frame 311 may also be greater than the length of the radiating section of the antenna radiator 110 set in the second frame 312. For example, the ratio of the length of the radiating section of the antenna radiator 110 set in the first frame 311 to the length of the radiating section of the antenna radiator 110 set in the second frame 312 may be greater than or equal to three-half, so that most of the antenna radiator 110 is set in the first frame 311 and a small part of the antenna radiator 110 is set in the second frame 312. When the signal source 120 excites the antenna radiator 110 to support wireless signals, the antenna radiator 110 can form a current path from the grounding point 114 back to the ground, which can improve the anti-hand-grip performance of the antenna radiator 110.

[0109] It should be noted that Fig. 22 and Fig.21 The embodiment is a front view of the electronic device 10, and the display surface of the electronic device 10 faces the user; Figures 1 to 21 The embodiment is a back view of the electronic device 10, and the rear shell 600 of the electronic device 10 faces the user.

[0110] It should be understood that, in the description of this application, terms such as "first", "second", etc. are only used to distinguish similar objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0111] The electronic device provided in the embodiment of the present application is described in detail above. Specific examples are used herein to illustrate the principle and implementation method of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. At the same time, for those skilled in the art, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as limiting the present application.

Claims

1. An electronic device, characterized in that: include: First border; an antenna radiator, at least a portion of which is disposed on the first frame, the antenna radiator comprising a first end, a second end, a feeding point, a grounding point and an electrical connection point, the electrical connection point being disposed relative to the first frame, and the electrical connection point and the grounding point being grounded; A signal source is electrically connected to the feeding point, and the signal source is used to excite the antenna radiator to generate a resonant mode at least from the electrical connection point back to the ground.

2. The electronic device according to claim 1, characterized in that: The electronic device further comprises: A switching circuit, one end of the switching circuit is electrically connected to the grounding point, and the other end of the switching circuit is electrically connected to the grounding plane to achieve grounding, and the switching circuit is used to control the antenna radiator to support the transmission and reception of wireless signals in different frequency bands.

3. The electronic device according to claim 2, characterized in that: The grounding point is arranged at the second end, the feeding point is arranged at the middle of the antenna radiator, the radiating section between the first end and the feeding point is arranged at the first frame, and the electrical connection point is arranged between the first end and the feeding point.

4. The electronic device according to claim 3, characterized in that: The distance between the electrical connection point and the first end is between one sixteenth and one eighth of the wavelength of a wireless signal supported by the resonance mode.

5. The electronic device according to claim 3, characterized in that: The switching circuit at least includes a first switching branch and a second switching branch; The switching circuit is used to conduct the connection between the first switching branch and the antenna radiator and the ground plane, so that the antenna radiator generates a first resonance mode, and the resonance current generated by the excitation of the first resonance mode flows along the direction from the feeding point to the first end and flows along the direction from the feeding point to the second end; The switching circuit is also used to conduct the connection between the second switching branch and the antenna radiator and the ground plane, so that the antenna radiator generates a second resonant mode, and the resonant current generated by the second resonant mode flows in the direction from the second end to the first end.

6. The electronic device according to claim 5, characterized in that: The first resonance mode is used to support low-frequency signals in a first frequency band, and the second resonance mode is used to support low-frequency signals in a second frequency band, wherein the first frequency band is different from the second frequency band.

7. The electronic device according to claim 2, characterized in that: The feeding point is arranged at the second end, and the grounding point is arranged at the middle of the antenna radiator; the radiating section between the first end and the grounding point is arranged at the first frame, and the electrical connection point is arranged between the first end and the grounding point.

8. The electronic device according to any one of claims 1 to 7, characterized in that: The electronic device further includes a second frame, the second frame is bent and connected to the first frame, and the length of the first frame is greater than the length of the second frame; wherein The length of the radiating section of the antenna radiator disposed on the first frame is greater than the length of the radiating section of the antenna radiator disposed on the second frame.

9. The electronic device according to any one of claims 1 to 7, characterized in that: The electronic device further comprises: The first matching circuit is electrically connected between the signal source and the feeding point, and is used for performing impedance matching adjustment on the excitation signal provided by the signal source.

10. The electronic device according to any one of claims 1 to 7, characterized in that: The electronic device further comprises: A second matching circuit, one end of the second matching circuit is electrically connected to the electrical connection point, and the other end is grounded, and the second matching circuit is used to adjust the resonance mode.

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