Electronic device

Abstract

The application provides an electronic device, a first radiator is arranged opposite a first side of a floor, the first radiator comprises a first end, a first feeding point and a second end arranged in sequence, and the second end is grounded; a second radiator comprises a third end, a second feeding point and a fourth end arranged in sequence, the third end is arranged opposite the first side and is arranged spaced apart from the second end, and the fourth end is arranged opposite a second side of the floor; a signal source is used for exciting the first radiator to generate a first resonant current flowing in a direction from the second end to the first end on the floor and a second resonant current flowing in a direction away from the first side along the second end on the floor, and is used for exciting the second radiator to generate a third resonant current flowing in a direction from the second feeding point to the third end on the floor and a fourth resonant current flowing in a direction towards the first side along the fourth end on the floor, so that the first radiator and the second radiator jointly support transmission of a wireless signal. Based on this, the electronic device has better antenna performance.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of communication, in particular to an electronic device. BACKGROUND

[0002] With the development of communication technology, electronic devices such as smart phones can implement more and more functions, and the communication modes of electronic devices are more diversified. Each communication mode needs a corresponding antenna to support, and the performance of the antenna will directly determine the communication quality and directly determine the user's experience.

[0003] However, with the development of electronic technology, electronic devices are becoming smaller and thinner, and the space for setting the antenna inside the electronic device is also becoming smaller, which leads to the need to improve the performance of the antenna. SUMMARY

[0004] The present application provides an electronic device, and the performance of the antenna of the electronic device is relatively optimal.

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

[0006] a floor comprising a first side and a second side connected by bending;

[0007] a first radiator arranged opposite the first side, the first radiator comprising a first end, a first feed point and a second end arranged in sequence, the second end being electrically connected to the floor to realize grounding;

[0008] a second radiator comprising a third end, a second feed point and a fourth end arranged in sequence, the third end being arranged opposite the first side and spaced apart from the second end, and the fourth end being arranged opposite the second side; and

[0009] a signal source electrically connected to the first feed point and the second feed point respectively; wherein

[0010] the signal source is configured to excite the first radiator to generate a first resonant current flowing in a direction from the second end to the first end on the floor and a second resonant current flowing in a direction away from the first side along the second end on the floor, and to excite the second radiator to generate a third resonant current flowing in a direction from the second feed point to the third end on the floor and a fourth resonant current flowing in a direction towards the first side along the fourth end on the floor, so that the first radiator and the second radiator jointly support the transmission and reception of wireless signals.

[0011] The electronic device of the present application, the signal source is electrically connected with the first feeding point and the second feeding point respectively, the first radiator and the second radiator can form a co-feed antenna, the first radiator can make the first resonant current flowing in the direction from the second end to the first end of the first radiator and the second resonant current flowing in the direction away from the first edge from the second end under the excitation of the signal source; the second radiator can make the third resonant current flowing in the direction from the second feeding point to the third end and the fourth resonant current flowing in the direction towards the first edge from the fourth end under the excitation of the signal source, so that the third resonant current and the first resonant current flow in the same direction and superimpose on each other, the second resonant current and the fourth resonant current flow in opposite directions and cancel each other out, which makes the overall resonant current excited by the co-feed antenna formed by the first radiator and the second radiator on the floor flow in the extension direction of the first radiator, and the co-feed antenna has better antenna performance. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0013] Figure 1 The first structure schematic diagram of the electronic device provided by the embodiments of the present application.

[0014] Figure 2 The first current distribution schematic diagram of the electronic device shown in Figure 1

[0015] Figure 3 The second current distribution schematic diagram of the electronic device shown in Figure 1

[0016] Figure 4 The third current distribution schematic diagram of the electronic device shown in Figure 1

[0017] Figure 5 The S11 parameter curve schematic diagram of the electronic device shown in Figure 1

[0018] Figure 6 The antenna efficiency curve schematic diagram of the electronic device shown in Figure 1

[0019] Figure 7 The second structure schematic diagram of the electronic device provided by the embodiments of the present application.

[0020] Figure 8 ​​​​​A third structural schematic diagram of an electronic device provided by an embodiment of the present application.

[0021] Figure 9 A fourth structural schematic diagram of an electronic device provided by an embodiment of the present application.

[0022] Figure 10 A fifth structural schematic diagram of an electronic device provided by an embodiment of the present application.

[0023] Figure 11 A sixth structural schematic diagram of an electronic device provided by an embodiment of the present application.

[0024] Figure 12 A seventh structural schematic diagram of an electronic device provided by an embodiment of the present application.

[0025] Figure 13 A holding posture of the electronic device shown in FIG. 1. Figure 12

[0026] Another holding posture of the electronic device shown in FIG. 1. Figure 14 Figure 12 Antenna radiation performance diagrams of the electronic device shown in FIG. 1 under different scenarios.

[0027] Figure 15 Figure 12 A S parameter curve diagram of the electronic device shown in FIG. 1 under different scenarios.

[0028] Figure 16 An antenna efficiency curve diagram of the electronic device shown in FIG. 1 under different scenarios. Figure 12 DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the accompanying drawings and specific embodiments. Figure 17 to Figure 12 , 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, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person skilled in the art without creative labor fall within the scope of protection of the present application.

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the accompanying drawings and specific embodiments. Figure 1 to Figure 17 , 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, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person skilled in the art without creative labor fall within the scope of protection of the present application.

[0031] ​​Embodiments of the present application provide an electronic device 10, which can be a smart phone, a tablet computer, or the like, and can also be a game device, an augmented reality (AR) device, a car device, a data storage device, an audio playing device, a video playing device, a notebook computer, a desktop computing device, or the like. The electronic device 10 has a wireless communication function. For example, the electronic device 10 can transmit a wireless fidelity (Wi-Fi) signal, a global positioning system (GPS) signal, a 3rd-Generation (3G) signal, a 4th-Generation (4G) signal, a 5th-Generation (5G) signal, a near field communication (NFC) signal, a Blue tooth (BT) signal, an Ultra Wide Band (UWB) signal, or the like.

[0032] In the embodiments of the present application, the electronic device 10 can be a smart phone, a tablet computer, or the like, and can also be a game device, an augmented reality (AR) device, a car device, a data storage device, an audio playing device, a video playing device, a notebook computer, a desktop computing device, or the like. Figure 1 , Figure 1 A first structure diagram of the electronic device 10 provided by the embodiments of the present application is shown in FIG. 1. The electronic device 10 includes a first radiator 110, a second radiator 120, a signal source 130, and a floor 140.

[0033] The floor 140 can form a common ground of the electronic device 10. The floor 140 includes a first edge 141 and a second edge 142 connected by bending, the first edge 141 can extend along a first direction H1, and the second edge 142 can extend along a second direction H2, the first direction H1 intersects the second direction H2, for example, the first direction H1 can be perpendicular to the second direction H2. The first radiator 110 is arranged opposite to the first edge 141, and the first radiator 110 includes a first end 111, a first feeding point 112, and a second end 113 arranged in sequence, the second end 113 is electrically connected to the floor 140 to realize grounding, the second end 113 is a grounding end of the first radiator 110, and the first end 111 is a free end, an open end, or a terminal end of the first radiator 110. The second radiator 120 includes a third end 121, a second feeding point 122, and a fourth end 123 arranged in sequence, the third end 121 is arranged opposite to the first edge 141 of the floor 140 and is arranged spaced apart from the second end 113 of the first radiator 110, and the fourth end 123 is arranged opposite to the second edge 142 of the floor 140, so that part of the second radiator 120 can be arranged opposite to the first edge 141, and another part of the second radiator 120 can be arranged opposite to the second edge 142; wherein the second feeding point 122 can be arranged opposite to the first edge 141 of the floor 140, or can be arranged opposite to the second edge 142 of the floor 140.

[0034] It can be understood that the floor 140 can be a plane or structure with zero potential. The floor 140 can be formed by a conductor, a printed circuit or a metal printed layer in the electronic device 10; or the floor 140 can be formed on a main board, a small board or other bearing plate of the electronic device 10; or the floor 140 can also be formed on a frame (for example, the middle plate 320 in the following) of the electronic device 10. The embodiments of the present application do not limit the specific setting position of the floor 140. The second end 113 of the first radiator 110 can be connected to the floor 140 in the form of a grounding pad, a grounding spring and the like, but is not limited thereto.

[0035] It can be understood that the first feeding point 112 of the first radiator 110 can be close to the second end 113 of the first radiator 110 and away from the first end 111, and the first radiator 110 can be in the form of an inverted-F antenna (IFA). Of course, the first feeding point 112 can also be arranged in other regions, and the embodiments of the present application do not limit this. The second feeding point 122 of the second radiator 120 can be arranged in the middle region between the third end 121 and the fourth end 123, for example, the distance between the second feeding point 122 and the third end 121 can be between one half and two-thirds of the branch length of the entire second radiator 120. Of course, the second feeding point 122 can also be arranged in other regions, and the embodiments of the present application do not limit this.

[0036] It can be understood that the signal source 130 can change the excitation current or the bound electromagnetic wave of high frequency into radiated electromagnetic energy, for example, the signal source 130 can provide an excitation signal to the first radiator 110 and the second radiator 120, which can excite the first radiator 110 and the second radiator 120 to support wireless signal transmission; at the same time, the first radiator 110 and the second radiator 120 can also capture and bind the electromagnetic wave in the free space and transmit it to the signal source 130 to form a current signal, so that the first radiator 110 and the second radiator 120 support wireless signal reception.

[0037] It can be understood that the signal source 130 can be electrically connected to the first radiator 110 and the second radiator 120 at the same time, so that the first radiator 110 and the second radiator 120 can support wireless signals of the same frequency band at the same time, and the first radiator 110 and the second radiator 120 can form a common feed antenna. The signal source 130 can be electrically connected to the first feeding point 112 and the second feeding point 122 respectively, and the signal source 130 can provide an excitation signal to the first radiator 110 through the first feeding point 112 and simultaneously provide an excitation signal to the second radiator 120 through the second feeding point 122, so as to excite the first radiator 110 and the second radiator 120 to generate a resonance mode and a resonance current.

[0038] For example, please refer to Figure 1 And refer to Figure 2 and Figure 3 , Figure 2 for Figure 1 The diagram shows the first type of current distribution in the electronic device 10. Figure 3 for Figure 1 A schematic diagram of the second current distribution of the electronic device 10 shown. Signal source 130 can excite the first radiator 110 to generate a first resonant current I1 flowing along the direction from the second end 113 to the first end 111 (or along the extension direction of the first side 141 and away from the second side 142) and a second resonant current I2 flowing along the second end 113 and away from the first side 141 (or along the extension direction of the second side 142 and away from the first side 141) on the floor 140, and can also excite the second radiator 120 to generate a third resonant current I3 flowing along the direction from the second feed point 122 to the third end 121 (or the direction from the third end 121 to the second end 113, or along the extension direction of the first side 141 and away from the second side 142) and a fourth resonant current I4 flowing along the fourth end 123 toward the first side 141 (or along the extension direction of the second side 142 and toward the first side 141) on the floor 140, so that the first radiator 110 and the second radiator 120 jointly support the transmission of wireless signals.

[0039] It is understood that the first radiator 110 being positioned relative to the first side 141 of the floor 140 can mean that the projection of the first radiator 110 onto the floor 140 (e.g., the projection along the second direction H2) can be located on the first side 141 of the floor 140. The first radiator 110 can extend along the extending direction (first direction H1) of the first side 141 of the floor 140, so that the first resonant current I1 generated by the signal source 130 exciting the first radiator 110 on the floor 140 can flow along the first direction H1 and toward the side where the first end 111 of the first radiator 110 is located (e.g., in…). Figure 2 The first resonant current I1 flows upward along the first direction H1, and the first resonant current I1 can be a longitudinal current; the second resonant current I2 generated on the floor 140 by the signal source 130 exciting the first radiator 110 can flow along the second direction H2 and away from the first radiator 110 (e.g., in...). Figure 2 The first resonant current I1 flows to the right along the second direction H2. The second resonant current I2 can be a transverse current. The first radiator 110 can be in the form of an inverted F antenna and together with the second radiator 120 support the transmission and reception of wireless signals (transmission and reception include receiving and transmitting, which will not be elaborated below).

[0040] It can be understood that the first resonant current I1 and the second resonant current I2 can be resonant currents flowing on the first radiator 110 and formed on the floor 140 after being grounded from the second end 113, or can be induced currents generated on the floor 140, and embodiments of the present application do not limit this. Wherein, the first resonant current I1 and the second resonant current I2 are only flow directions of part of the resonant currents generated by the signal source 130 on the floor 140, and it should be understood that other resonant currents with different flow directions can also be generated on the floor 140, but these resonant currents can be decomposed into resonant current components along the flow direction of the first resonant current I1 and the flow direction of the second resonant current I2, and embodiments of the present application do not limit this.

[0041] It can be understood that the second radiator 120 is arranged relative to the first edge 141 and the second edge 142 of the floor 140, so that the extension directions of the third end 121 and the fourth end 123 of the second radiator 120 are different. For example, the second radiator 120 also has a corner point, and the radiation section between the third end 121 and the corner point can be arranged relative to the first edge 141 and extend along the first direction H1, and the radiation section between the corner point and the fourth end 123 can be arranged relative to the second edge 142 and extend along the second direction H2, so that the third resonant current I3 generated by the signal source 130 on the floor 140 can flow along the first direction H1 and towards the third end 121 of the second radiator 120 (for example, in Figure 3 , the third resonant current I3 flows upwards along the first direction H1), and the third resonant current I3 can be a longitudinal current; the fourth resonant current I4 generated by the signal source 130 on the floor 140 can flow along the second direction H2 and towards the second radiator 120 (for example, in Figure 3 , the fourth resonant current I4 flows leftwards along the second direction H2), and the fourth resonant current I4 can be a transverse current, and the second radiator 120 can support the transmission and reception of wireless signals together with the first radiator 110 in the form of an inverted F antenna.

[0042] It can be understood that the second feeding point 122 of the second radiator 120 can be arranged on the radiation section between the third end 121 and the corner point of the second radiator 120, or can be arranged on the radiation section from the corner point to the fourth end 123. When the second feeding point 122 is arranged on the radiation section between the third end 121 and the corner point, the signal source 130 can excite more third resonant current I3 components on the floor 140. Embodiments of the present application do not limit the specific arrangement position of the second feeding point 122.

[0043] It can be understood that the branch length of the second radiator 120 relative to the first edge 141 can be greater than the branch length of the second radiator 120 relative to the second edge 142. That is, the length of the second radiator 120 along the first direction H1 can be greater than the length of the second radiator 120 along the second direction H2, so that the component of the third resonant current I3 generated by the second radiator 120 on the floor 140 can be greater than the component of the fourth resonant current I4, and the fourth resonant current I4 is more likely to be offset by the second resonant current I2, so that the antenna performance of the electronic device 10 is better.

[0044] It can be understood that the third resonant current I3 and the fourth resonant current I4 can be resonant currents formed on the floor 140 after the resonant currents flowing on the second radiator 120 are grounded, or can be induced currents generated on the floor 140, and the embodiments of the present application do not limit this. Among them, the third resonant current I3 and the fourth resonant current I4 are only the flow directions of part of the resonant currents generated by the signal source 130 on the second radiator 120 on the floor 140, and it should be understood that other resonant currents with different flow directions can also be generated on the floor 140, but these resonant currents can be decomposed into resonant current components along the flow direction of the third resonant current I3 and the flow direction of the fourth resonant current I4, and the embodiments of the present application do not limit this.

[0045] It can be understood that, compared with the resonant current distribution shown in Figure 2 and Figure 3 , it can be seen that the current flow direction of the first resonant current I1 generated by the first radiator 110 on the floor 140 is the same as the current flow direction of the third resonant current I3 generated by the second radiator 120 on the floor 140; the current flow direction of the second resonant current I2 generated by the first radiator 110 on the floor 140 is opposite to the current flow direction of the fourth resonant current I4 generated by the second radiator 120 on the floor 140; so, please refer to Figure 4 , Figure 4 , Figure 1 for the third current distribution diagram of the electronic device 10. When the signal source 130 simultaneously excites the first radiator 110 and the second radiator 120, the second resonant current I2 and the fourth resonant current I4 generated by the first radiator 110 and the second radiator 120 on the floor 140 can be offset by each other, and the first resonant current I1 and the third resonant current I3 can be superimposed on each other and flow along the first direction H1. Based on this, the signal source 130 can excite the first radiator 110 and the second radiator 120 to generate a same-direction resonant current flowing along the first direction H1 on the floor 140, and the first radiator 110 and the second radiator 120 have better radiation performance when supporting wireless signals.

[0046] For example, please refer to Figure 5 and Figure 6 ,Figure 5 As shown in FIG. 10, the electronic device 10 is a mobile phone. Figure 1 FIG. 11 is a schematic diagram of an S11 parameter curve of the electronic device 10 shown in FIG. 10. Figure 6 As shown in FIG. 12, the electronic device 10 is a mobile phone. Figure 1 FIG. 13 is a schematic diagram of an antenna efficiency curve of the electronic device 10 shown in FIG. 12. Figure 5 In FIG. 11, curve L1 is an S11 parameter curve when the signal source 130 provides an excitation signal to the first radiator 110 alone, curve L2 is an S11 parameter curve when the signal source 130 provides an excitation signal to the second radiator 120 alone, and curve L3 is an S11 parameter curve when the signal source 130 provides an excitation signal to the first radiator 110 and the second radiator 120 simultaneously. Figure 6 In FIG. 13, curve L4 and L5 are a radiation efficiency curve and a system efficiency curve when the signal source 130 provides an excitation signal to the first radiator 110 alone, curve L6 and L7 are a radiation efficiency curve and a system efficiency curve when the signal source 130 provides an excitation signal to the second radiator 120 alone, and curve L8 and L9 are a radiation efficiency curve and a system efficiency curve when the signal source 130 provides an excitation signal to the first radiator 110 and the second radiator 120 simultaneously. As compared with curves L1 to L3, when the signal source 130 is electrically connected to the first radiator 110 and the second radiator 120 simultaneously to form a co-fed antenna, the S11 performance of the co-fed antenna is better than that of the first radiator 110 or the second radiator 120 alone, the S11 performance of the co-fed antenna is better, the -3dB operating bandwidth of the co-fed antenna is wider, and the radiation performance of the co-fed antenna is better. As compared with curves L4 to L9, in the B5 frequency band (0.824GHz-0.896GHz), the average radiation efficiency of the co-fed antenna is 2.3dB and 1.2dB higher than that of the first radiator 110 and the second radiator 120 alone respectively, the average system efficiency of the co-fed antenna, the first radiator 110 and the second radiator 120 is -4.7dB, -7.6dB and -6.2dB respectively, and the average system efficiency of the co-fed antenna is 2.9dB and 1.5dB higher than that of the first radiator 110 and the second radiator 120 alone. Thus, the antenna performance of the co-fed antenna formed by the first radiator 110 and the second radiator 120 is much higher than that of the first radiator 110 or the second radiator 120 alone, and the antenna performance of the co-fed antenna is better.

[0047] The electronic device 10 of the embodiment of the present application, the signal source 130 is electrically connected with the first feeding point 112 and the second feeding point 122 respectively, the first radiator 110 and the second radiator 120 can form a co-fed antenna, the first radiator 110 can make the first resonant current I1 flowing in the direction from the second end 113 to the first end 111 and the second resonant current I2 flowing away from the first edge 141 of the floor 140 under the excitation of the signal source 130; the second radiator 120 can make the third resonant current I3 flowing in the direction from the third end 121 to the second end 113 and the fourth resonant current I4 flowing in the direction from the fourth end 123 to the first edge 141 of the floor 140 under the excitation of the signal source 130, the third resonant current I3 and the first resonant current I1 flow in the same direction and superimpose each other, the second resonant current I2 and the fourth resonant current I4 flow in the opposite direction and cancel each other, so that the overall resonant current excited on the floor 140 by the co-fed antenna formed by the first radiator 110 and the second radiator 120 can flow in the first direction H1, the co-fed antenna has better antenna performance, so that the electronic device 10 of the present application can form a co-fed antenna with stronger antenna performance by multiplexing two radiators.

[0048] Wherein, please refer to Figure 7 , Figure 7 The second structure diagram of the electronic device 10 provided by the embodiment of the present application. The electronic device 10 further comprises a first transmission line 151, a second transmission line 152 and a third transmission line 153.

[0049] One end of the first transmission line 151 is electrically connected to the signal source 130, one end of the second transmission line 152 is electrically connected to the other end of the first transmission line 151, the other end of the second transmission line 152 is electrically connected to the first feeding point 112, one end of the third transmission line 153 is electrically connected to the other end of the first transmission line 151, the other end of the third transmission line 153 is electrically connected to the second feeding point 122. Wherein, the lengths of the second transmission line 152 and the third transmission line 153 are in a preset length range, so that the phase difference of the excitation signal provided by the signal source 130 when transmitted to the first radiator 110 through the second transmission line 152 and transmitted to the second radiator 120 through the third transmission line 153 is 180 degrees.

[0050] It can be understood that at least one of the first transmission line 151, the second transmission line 152 and the third transmission line 153 can be but is not limited to a microstrip line, a strip line or a waveguide structure, etc. The embodiment of the present application does not limit this. Wherein, the first transmission line 151, the second transmission line 152 and the third transmission line 153 can be a complete wire or can be electrically connected by multiple sub-transmission lines, and the specific form of the three transmission lines is not limited by the embodiment of the present application.

[0051] It can be understood that when the positions of the first radiator 110 and the second radiator 120 are fixed, the lengths of the second transmission line 152 and the third transmission line 153 can be in a preset length range, or the length difference between the second transmission line 152 and the third transmission line 153 can be in a preset length difference range, at this time, when the signal source 130 transmits the excitation signal to the first radiator 110 and the second radiator 120 through the second transmission line 152 and the third transmission line 153 respectively, the phase difference of the excitation signal on the first radiator 110 and the second radiator 120 can be 180 degrees, at this time, the excitation signal provided by the signal source 130 can be fed to the first radiator 110 and the second radiator 120 in the equal and opposite manner under the action of the second transmission line 152 and the third transmission line 153, under the excitation of the excitation signal, the current directions of the second resonant current I2 generated by the first radiator 110 on the floor 140 and the fourth resonant current I4 generated by the second radiator 120 on the floor 140 are more likely to be opposite and offset each other, and the current components of the excitation currents generated by the first radiator 110 and the second radiator 120 on the floor 140 flowing in the first direction H1 are larger, so that the antenna performance of the co-fed antenna formed by the first radiator 110 and the second radiator 120 is better.

[0052] It can be understood that the preset length range or the preset length difference range of the second transmission line 152 and the third transmission line 153 can be determined according to actual conditions, and the length or the length difference of the second transmission line 152 and the third transmission line 153 that can make the phase difference of the excitation signal on the first radiator 110 and the second radiator 120 be 180 degrees can be within the protection scope of the embodiment of the application.

[0053] It can be understood that the length of the first transmission line 151 of the embodiment of the application basically does not affect the phase difference of the first radiator 110 and the second radiator 120, so that the length of the first transmission line 151 can be determined according to actual needs, and the specific length of the first transmission line 151 is not limited in the embodiment of the application.

[0054] The electronic device 10 of the embodiment of the application can make the phase difference of the excitation signal provided by the signal source 130 be 180 degrees when the excitation signal is transmitted to the first radiator 110 and the second radiator 120 by setting the lengths of the second transmission line 152 and the third transmission line 153, so that the second resonant current I2 and the fourth resonant current I4 of the co-fed antenna formed by the first radiator 110 and the second radiator 120 on the floor 140 are more likely to offset each other, so that the antenna performance of the co-fed antenna is better.

[0055] Among them, please refer to Figure 8 , Figure 8A third structural schematic diagram of the electronic device 10 is provided in the embodiments of the present application. The electronic device 10 can further include a phase shift module 160.

[0056] The phase shift module 160 can be electrically connected between the signal source 130 and the first feeding point 112, so that the phase shift module 160 can adjust the phase of the excitation signal provided by the signal source 130 to the first radiator 110. Alternatively, the phase shift module 160 can be electrically connected between the signal source 130 and the second feeding point 122, so that the phase shift module 160 can adjust the phase of the excitation signal provided by the signal source 130 to the second radiator 120. Alternatively, the phase shift module 160 can be electrically connected between the signal source 130 and the first feeding point 112 and between the signal source 130 and the second feeding point 122 at the same time, for example, the phase shift module 160 can include two phase shifters, one of which can be electrically connected between the signal source 130 and the first feeding point 112, and the other of which can be electrically connected between the signal source 130 and the second feeding point 122, and the phase shift module 160 can respectively adjust the phase of the excitation signal provided by the signal source 130 to the first radiator 110 and the phase of the excitation signal provided by the signal source 130 to the second radiator 120.

[0057] It can be understood that the phase shift module 160 can include a phase shifter, which is a device capable of adjusting the phase of a wave (such as current). The embodiments of the present application provide the phase shift module 160, so that the phase difference of the excitation signal provided by the signal source 130 when transmitted to the first radiator 110 and the second radiator 120 is 180 degrees, so that the second resonant current I2 and the fourth resonant current I4 of the corporate-fed antenna formed by the first radiator 110 and the second radiator 120 on the floor 140 are more easily offset, and the antenna performance of the corporate-fed antenna is more optimal.

[0058] It can be understood that the electronic device 10 can adjust the phase difference of the excitation signal when transmitted to the first radiator 110 and the second radiator 120 through the lengths of the second transmission line 152 and the third transmission line 153; the electronic device 10 can also adjust the phase difference of the excitation signal when transmitted to the first radiator 110 and the second radiator 120 through the phase shift module 160; and the electronic device 10 can also adjust the phase difference of the excitation signal when transmitted to the first radiator 110 and the second radiator 120 through the lengths of the second transmission line 152 and the third transmission line 153 and the phase shift module 160 at the same time. For example, as shown in FIG. 1B, the second transmission line 152 can include two sub-transmission lines, and the phase shift module 160 can be electrically connected between the two sub-transmission lines, and the phase shift module 160 can adjust the phase of the excitation signal transmitted to the first radiator 110. Figure 8

[0059] ​It is understandable that, due to the influence of the first radiator 110, the second radiator 120, and the transmission line, the phase adjustment range of the phase when the excitation signal is transmitted to the first radiator 110 or the second radiator 120 by the phase shifting module 160 is not necessarily 180 degrees. For example, when the phase shifting module 160 is not provided, the phase difference when the excitation signal is transmitted to the first radiator 110 or the second radiator 120 is 30 degrees. Therefore, the phase adjustment range of the phase when the excitation signal is transmitted to the first radiator 110 or the second radiator 120 by the phase shifting module 160 can be 150 degrees, so that after the phase shifter adjustment, the phase difference when the excitation signal is transmitted to the first radiator 110 and the second radiator 120 can be 180 degrees. This application embodiment does not limit the specific phase degree adjusted by the phase shifting module 160.

[0060] The electronic device 10 of this application embodiment is equipped with a phase shifting module 160, which makes the phase difference between the excitation signal provided by the signal source 130 and the first radiator 110 and the second radiator 120 180 degrees. As a result, the second resonant current I2 and the fourth resonant current I4 of the common-feed antenna formed by the first radiator 110 and the second radiator 120 on the ground 140 are more likely to cancel each other out, thereby making the antenna performance of the common-feed antenna better.

[0061] Please refer to the following: Figure 9 , Figure 9 This is a fourth structural schematic diagram of the electronic device 10 provided in the embodiments of this application. The electronic device 10 may further include at least one of a first matching network 171, a second matching network 172, and a third matching network 173.

[0062] The first matching network 171 is electrically connected to the signal source 130 and is used to adjust the impedance of the excitation signal provided by the signal source 130. One end of the second matching network 172 is electrically connected between the signal source 130 and the first feed point 112, and the other end of the second matching network 172 is grounded. The second matching network 172 can adjust the impedance of the excitation signal provided by the signal source 130 to the first radiator 110. One end of the third matching network 173 is electrically connected between the signal source 130 and the second feed point 122, and the other end of the second matching network 172 is grounded. The third matching network 173 can adjust the impedance of the excitation signal provided by the signal source 130 to the second radiator 120.

[0063] It can be understood that the matching network is also called a matching circuit. The first matching network 171 can be electrically connected to the signal source 130 through the first transmission line 151, the second matching network 172 can be electrically connected to the signal source 130 and the first feeding point 112 through the second transmission line 152, and the third matching network 173 can be electrically connected to the signal source 130 and the second feeding point 122 through the third transmission line 153. The first matching network 171, the second matching network 172, and the third matching network 173 can perform impedance matching adjustment on the excitation signal. Impedance refers to the resistance to the excitation current in the circuit, and is called impedance. When the internal resistance of the signal source 130 and the characteristic impedance of the transmission line are equal in size and the same in phase, or the characteristic impedance of the transmission line and the size of the connected load impedance are equal and the same in phase, the input end or the output end of the transmission line is in an impedance matching state, which is simply referred to as impedance matching.

[0064] It can be understood that the first matching network 171, the second matching network 172, and the third matching network 173 can include, but are not limited to, capacitors, inductors, switches, and the like. The specific structure of the three matching networks is not limited in the embodiment of the application.

[0065] It can be understood that the electronic device 10 can include one matching network, two matching networks, or three matching networks of the first matching network 171, the second matching network 172, and the third matching network 173, and the embodiment of the application does not limit this.

[0066] The electronic device 10 of the embodiment of the application includes multiple matching networks. Under the action of the multiple matching networks, the impedance matching performance of the excitation signal provided by the signal source 130 is better, and the antenna performance of the electronic device 10 supporting wireless signals is more optimal.

[0067] Among them, please refer to Figure 10 , Figure 10 The fifth structure diagram of the electronic device 10 provided by the embodiment of the application is shown. The electronic device 10 can further include at least one of the first switching circuit 181 and the second switching circuit 182.

[0068] One end of the first switching circuit 181 is electrically connected to the first radiator 110, and the other end of the first switching circuit 181 is grounded. The first switching circuit 181 can adjust the electrical length of the first radiator 110. One end of the second switching circuit 182 is electrically connected to the second radiator 120, and the other end of the second switching circuit 182 is grounded. The second switching circuit 182 can adjust the electrical length of the second radiator 120.

[0069] It can be understood that the electrical length of the radiator refers to the equivalent length when the radiator radiates a signal, or refers to the equivalent length required for electromagnetic wave transmission in the radiating structure. The electrical length of the radiator can be greater than, less than or equal to the branch length. The electrical length of the radiator can be associated with the frequency supported by the radiator. When the electrical length of the radiator is longer, the radiator can support a wireless signal with a lower frequency. When the electrical length of the radiator is shorter, the radiator can support a wireless signal with a higher frequency. The radiator can change its electrical length by electrically connecting circuits with different impedances.

[0070] It can be understood that the first switching circuit 181 and the second switching circuit 182 can include, but are not limited to, capacitors, inductors, switches and the like. The first switching circuit 181 and the second switching circuit 182 can adjust the circuit structure to adapt to the wireless signal supported by the first radiator 110 and the second radiator 120 by selecting different combinations of electronic elements. For example, the first switching circuit 181 includes a plurality of first switching branches, and the second switching circuit 182 includes a plurality of second switching branches. When the first switching circuit 181 selects a first switching branch and the second switching circuit 182 selects a second switching branch, the signal source 130 can excite the first radiator 110 and the second radiator 120 to jointly support a wireless signal of a certain frequency band (for example, B5 frequency band / B8 frequency band). When the first switching circuit 181 selects another first switching branch and the second switching circuit 182 selects another second switching branch, the signal source 130 can excite the first radiator 110 and the second radiator 120 to jointly support a wireless signal of another frequency band (for example, B28 frequency band). The specific structure of the first switching circuit 181 and the second switching circuit 182 is not limited in the embodiments of the present application.

[0071] It can be understood that the first switching circuit 181 can be electrically connected to a region of the first radiator 110 closer to the first end 111. For example, the first radiator 110 further includes a first electrical connection point between the first end 111 and the second end 113. The distance between the first electrical connection point and the first end 111 is less than the distance between the first electrical connection point and the second end 113. The first switching circuit 181 is electrically connected to the first electrical connection point, so that the first switching circuit 181 is closer to the first end 111. Since the first end 111 is the free end or the terminal end or the open end of the first radiator 110, when the first switching circuit 181 closer to the first end 111 is grounded, the first switching circuit 181 has a smaller component of the second resonant current I2, and the first switching circuit 181 is less likely to affect the antenna performance of the first radiator 110. It should be noted that the first switching circuit 181 can also be electrically connected to other regions of the first radiator 110, which is not limited in the embodiments of the present application.

[0072] Similarly, the second switching circuit 182 can be electrically connected to a region of the second radiator 120 closer to the third end 121. For example, the second radiator 120 further includes a second electrical connection point located between the third end 121 and the fourth end 123, the second electrical connection point is closer to the third end 121 than to the fourth end 123, and the second switching circuit 182 is electrically connected to the second electrical connection point, so that the second switching circuit 182 is closer to the third end 121, and when the first switching circuit 181 is grounded closer to the third end 121, the third switching circuit brings smaller component of the fourth resonant current I4, and the second switching circuit 182 is less likely to affect the antenna performance of the second radiator 120. It should be noted that the second switching circuit 182 can also be electrically connected to other regions of the second radiator 120, and the embodiments of the present application do not limit this.

[0073] It can be understood that the electronic device 10 of the embodiments of the present application can include the first switching circuit 181 and not include the second switching circuit 182, or can include the second switching circuit 182 and not include the first switching circuit 181, or can include both the first switching circuit 181 and the second switching circuit 182, and the embodiments of the present application do not limit this.

[0074] The electronic device 10 of the embodiments of the present application includes the first switching circuit 181 and the second switching circuit 182, and under the action of the two switching circuits, the electronic device 10 can support more frequency bands of wireless signals, and the frequency band range covered by the electronic device 10 is wider.

[0075] Among them, based on the structure of the above-mentioned electronic device 10, please refer to Figure 11 , Figure 11 The sixth structure diagram of the electronic device 10 provided by the embodiments of the present application. The electronic device 10 of the embodiments of the present application further includes a display screen 200, a middle frame 300, a circuit board 400, a battery 500 and a back shell 600.

[0076] The display screen 200 is arranged on the middle frame 300 to form a display surface of the electronic device 10, and is used to display image, text and other information. Among them, the display screen 200 can include a liquid crystal display (Liquid Crystal Display, LCD) or an organic light emitting diode (Organic Light-Emitting Diode, OLED) display screen and other types of display screens.

[0077] The middle frame 300 can include a side frame 310 and a middle plate 320. The side frame 310 can be a hollow frame structure and form an outer frame of the electronic device 10. The middle plate 320 can be a thin plate or sheet structure. The middle frame 300 can be used to provide support for electronic components or functional components in the electronic device 10, so as to mount the electronic components or functional components of the electronic device 10 together. For example, the middle frame 300 can be provided with a groove, a protrusion, a through hole or the like, so as to facilitate mounting of the electronic components or functional components of the electronic device 10. It can be understood that the material of the middle frame 300 can include metal or plastic.

[0078] The circuit board 400 is arranged on the middle frame 300 and is fixed, and is sealed in the inside of the electronic device 10 by the rear shell 600. The circuit board 400 can be integrated with a processor, and in addition, one or more of a functional component such as an earphone interface, an acceleration sensor, a gyroscope, and a motor. At the same time, the display screen 200 can be electrically connected to the circuit board 400, so as to control the display of the display screen 200 by the processor on the circuit board 400.

[0079] The battery 500 is arranged on the middle frame 300 and is sealed in the inside of the electronic device 10 by the rear shell 600. At the same time, the battery 500 is electrically connected to the circuit board 400, so as to realize power supply of the electronic device 10 by the battery 500. The circuit board 400 can be provided with a power management circuit. The power management circuit is used to distribute the voltage provided by the battery 500 to each electronic component in the electronic device 10.

[0080] 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 double-sided adhesive tape, so as to realize connection with the middle frame 300. The rear shell 600 is used to seal the electronic components and functional components of the electronic device 10 in the electronic device 10 together with the middle frame 300 and the display screen 200, so as to form a protection effect on the electronic components and functional components of the electronic device 10.

[0081] It can be understood that the floor 140 of the embodiment of the present application can be formed on the rear shell 600, the circuit board 400 or the middle plate 320 of the middle frame 300. For example, the rear shell 600, the circuit board 400 or the middle plate 320 can be provided with a conductor region with zero electric potential, and the floor 140 can be arranged on the conductor region.

[0082] It can be understood that one or more of the signal source 130, the first matching network 171, the second matching network 172, the third matching network 173, the first switching circuit 181, and the second switching circuit 182 of the embodiment of the present application can be, but are not limited to, disposed on the circuit board 400; of course, one or more of the above components can also be disposed on the small board of the electronic device 10, and the specific setting position of the above structure is not limited by the embodiment of the present application.

[0083] It can be understood that the above is only an exemplary example of the electronic device 10, and the electronic device 10 of the embodiment of the present application can also include a camera, a sensor, an acoustic-electric conversion device, and the like. These components can be described in the related art, and will not be described here.

[0084] Among them, please combine Figure 11 and refer to Figure 12 , Figure 12 The seventh structure schematic diagram of the electronic device 10 provided by the embodiment of the present application. The floor 140 can be formed on the middle plate 320 of the middle frame 300 of the electronic device 10, and the first radiator 110 and the second radiator 120 can be formed on the frame 310 of the middle frame 300 of the electronic device 10.

[0085] The frame 310 of the middle frame 300 includes a first frame 311 and a second frame 312 connected by bending, the first frame 311 is the same as the extension direction of the first side 141 and can extend along the first direction H1, and the first frame 311 can be arranged opposite to the first side 141 and form a gap therebetween; the second frame 312 is the same as the extension direction of the second side 142 and can extend along the second direction H2, and the second frame 312 can be arranged opposite to the second side 142 and form a gap therebetween. Among them, the first frame 311 can be provided with a first gap 101 and a second gap 102, and the second frame 312 can be provided with a third gap 103, so that the first radiator 110 is formed between the first gap 101 and the second gap 102, and the second radiator 120 is formed between the second gap 102 and the third gap 103; the first radiator 110 can be formed on the first frame 311, part of the second radiator 120 can be formed on the first frame 311, and another part of the second radiator 120 can be formed on the second frame 312.

[0086] It is understood that the first gap 101 and the second gap 102 can be connected to the gap between the first frame 311 and the first side 141 of the floor 140, so that the first metal branch formed between the first gap 101 and the second gap 102 can have a free end and form a first radiator 110. The second gap 102 and the third gap 103 can be connected to the gap between the second frame 312 and the second side 142 of the floor 140, so that the second metal branch formed between the second gap 102 and the third gap 103 can have a free end and form a second radiator 120. Non-conductive material can be filled between the first gap 101 and the third gap 103 to increase the structural strength of the first frame 311 and the second frame 312.

[0087] It is understood that both the floor 140 and the middle frame 300 can be rectangular structures, so that the floor 140 can include other edges, and the middle frame 300 can include other borders 310. Furthermore, the length of the first side 141 of the floor 140 can be greater than the length of the second side 142, with the first side 141 being the long edge of the floor 140 and the second side 142 being the short edge of the floor 140; similarly, the length of the first border 311 of the middle frame 300 can be greater than the length of the second border 312, so that the first border 311 can be the long border of the electronic device 10, and the second border 312 can be the short border of the electronic device 10.

[0088] In this embodiment, the first radiator 110 and the second radiator 120 are formed on the frame 310 of the middle frame 300. The middle plate 320 of the middle frame 300 can form the ground plane 140 of the electronic device 10. At this time, the first radiator 110 and the second radiator 120 can be grounded by means of, but not limited to, grounding springs, grounding pads, grounding screws and other structures, through electrical connection with the middle plate 320. On the one hand, the frame 310 and the middle plate 320 are reused as radiators and ground plane 140 respectively, which can realize the miniaturization design of the electronic device 10. On the other hand, the grounding path of the first radiator 110 is shorter, which is more conducive to the antenna layout of the electronic device 10.

[0089] When the first radiator 110 and the second radiator 120 are formed on the first frame 311 and the second frame 312 of the electronic device 10, the signal source 130 can excite the first radiator 110 and the second radiator 120 to support low-frequency wireless signals, so that the first radiator 110 and the second radiator 120 can serve as two low-frequency antennas of the electronic device 10. It should be noted that the first radiator 110 and the second radiator 120 can also support wireless signals of other frequency bands, and this embodiment of the application does not limit this.

[0090] It is understandable that when electronic device 10 is in such a state... Figure 12In the indicated state, the first radiator 110 and the second radiator 120 can be the upper low-frequency antenna and the lower low-frequency antenna of the electronic device 10, respectively. When the signal source 130 powers the first radiator 110 alone, the first radiator 110 has better performance in free space, but its performance deteriorates significantly when held by a human hand. Similarly, when the signal source 130 powers the second radiator 120 alone, the second radiator 120 has better performance in free space, but its performance deteriorates significantly when held by a human hand. To avoid the impact of the user's hand grip on the performance of the first radiator 110 and the second radiator 120, this embodiment of the application can set the distance between the first gap 101 and the second frame 312 to be greater than or equal to two-thirds of the length of the first frame 311, so that the first gap 101 is further away from the second frame 312, and the first gap 101 is more likely to be higher than the user's fingers when holding the electronic device 10 with their left or right hand, thus avoiding being gripped by the user's hand. The distance between the third gap 103 and the first frame 311 can be greater than or equal to one-quarter of the length of the second frame 312, so that the third gap 103 is further away from the first frame 311 and the third gap 103 is not easily covered by the palm of the user's left or right hand when holding the electronic device 10.

[0091] For example, please refer to 13 and Figure 14 , Figure 13 for Figure 12 One holding posture of the electronic device 10 shown, for example Figure 13 The left-hand holding posture for electronic device 10; Figure 14 for Figure 12 Another way to hold the electronic device 10 shown is, for example, Figure 14 for Figure 12 The electronic device 10 is shown in a right-hand grip posture. The distance between the first gap 101 and the second frame 312 is greater than or equal to two-thirds of the length of the first frame 311; for example, the distance between the first gap 101 and the second frame 312 can be greater than or equal to 88 mm. The distance between the third gap 103 and the first frame 311 is greater than or equal to one-quarter of the length of the second frame 312. In this posture, the user's left thumb and right index finger are less likely to grip the first gap 101, and the user's palm is less likely to grip the third gap 103. Therefore, the electronic device 10 exhibits superior antenna performance. For example, as... Figure 15 As shown, Figure 15 for Figure 12The diagram shows the antenna radiation performance of the electronic device 10 under different scenarios. When the signal source 130 excites the first radiator 110 and the second radiator 120 to jointly support the B28 band, the radiation performance of the electronic device 10 supporting the B28 band in free space, left-hand holding, and right-hand holding scenarios are -4.7dB, -7.2dB, and -6.6dB, respectively. When the signal source 130 excites the first radiator 110 and the second radiator 120 to jointly support the B5 band, the radiation performance of the electronic device 10 supporting the B5 band in free space, left-hand holding, and right-hand holding scenarios are -4.7dB, -6.9dB, and -5.9dB, respectively. When the signal source 130 excites the first radiator 110 and the second radiator 120 to jointly support the B8 band, the radiation performance of the electronic device 10 supporting the B8 band in free space, left-hand holding, and right-hand holding scenarios are -5.6dB, -6.7dB, and -6.1dB, respectively. Figure 15 It is known that when the first radiator 110 and the second radiator 120 are co-fed and the first gap 101 and the third gap 103 are set in a special position, the antenna radiation performance of the electronic device 10 decreases by a maximum of about -2.5dB when held by a person, and is generally less than 2dB. Therefore, the electronic device 10 of the present application embodiment has good radiation performance when held by a person.

[0092] Furthermore, even in extreme cases where a person completely grasps the first gap 101, the electronic device 10 of this embodiment can still maintain certain radiation performance and good communication capabilities. For example, please refer to... Figure 16 and Figure 17 , Figure 16 for Figure 12 The diagram shows an S-parameter curve of the electronic device 10 under different scenarios. Figure 17 for Figure 12 The diagram shows an antenna efficiency curve of the electronic device 10 under different scenarios. Figure 16 The middle curves L10 and L11 are respectively Figure 12 The S11 parameter curves of the electronic device 10 shown are displayed in both free space and when the first gap 101 is completely gripped. Figure 17 The middle curves L12 and L13 are respectively Figure 12 The radiation efficiency curve and system efficiency curve of the electronic device 10 in a free space scenario are shown. Figure 17 The middle curves L14 and L15 are respectively Figure 12The diagram shows the radiation efficiency curve and system efficiency curve of the electronic device 10 under the scenario where the first gap 101 is completely gripped. As can be seen from curves L10 to L15, when the human hand grips the first gap 101 tightly, the S-parameter operating bandwidth of the electronic device 10 becomes wider, and the system efficiency of the electronic device 10 can still be maintained at around -13.5dB, indicating that the electronic device 10 still has relatively good radiation performance.

[0093] Based on this, the electronic device 10 of this application embodiment, based on a traditional bottom antenna (second radiator 120), adds a first radiator 110 to the side of the electronic device 10. The two radiators are simultaneously fed using a first transmission line 151, a second transmission line 152, and a third transmission line 153, thereby more effectively exciting the ground plane 140 to radiate. The two radiators, in a co-feed manner, achieve a multiplexed IFA antenna, which can obtain better radiation efficiency and a wider operating bandwidth under radiation conditions of small clearance and narrow bezel 310, giving the electronic device 10 better OTA performance. Furthermore, by opening gaps at appropriate positions on the first bezel 311 and the second bezel 312, the electronic device 10 can be better excited to radiate signals, and the antenna can achieve a smaller performance degradation and superior radiation performance when held in either hand. The electronic device 10 of this application embodiment has superior anti-hand-holding performance, which can greatly meet the usage needs of consumers in extreme scenarios.

[0094] It should be understood that in the description of this application, terms such as "first" and "second" are used only to distinguish similar objects and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0095] The electronic devices provided in the embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand this application. Furthermore, those skilled in the art will recognize that, based on the ideas of this application, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. An electronic device, characterized in that, include: The floor, including the first and second sides that are bent and connected; A first radiator is disposed opposite to the first side. The first radiator includes a first end, a first feed point and a second end arranged in sequence. The second end is electrically connected to the ground to achieve grounding. The second radiator includes a third end, a second feed point, and a fourth end arranged in sequence. The third end is disposed opposite to the first side and spaced apart from the second end, and the fourth end is disposed opposite to the second side. and The signal source is electrically connected to the first feed point and the second feed point, respectively; wherein, The signal source is used to excite the first radiator to generate a first resonant current flowing along the direction from the second end to the first end and a second resonant current flowing along the direction away from the first side of the second end on the floor, and to excite the second radiator to generate a third resonant current flowing along the direction from the second feed point to the third end and a fourth resonant current flowing along the direction from the fourth end toward the first side on the floor, so that the first radiator and the second radiator jointly support the transmission and reception of wireless signals.

2. The electronic device according to claim 1, characterized in that, The electronic device also includes: A first transmission line, one end of which is electrically connected to the signal source; A second transmission line, one end of which is electrically connected to the other end of the first transmission line, and the other end of which is electrically connected to the first feed point; and A third transmission line, one end of which is electrically connected to the other end of the first transmission line, and the other end of which is electrically connected to the second feed point; wherein... The lengths of the second transmission line and the third transmission line are within a preset length range, such that the phase difference between the excitation signal provided by the signal source when it is transmitted to the first radiator through the second transmission line and to the second radiator through the third transmission line is 180 degrees.

3. The electronic device according to claim 1, characterized in that, The electronic device also includes: A phase-shifting module is electrically connected between the signal source and the first feed point, and / or electrically connected between the signal source and the second feed point; wherein, The phase-shifting module is used to ensure that the phase difference between the excitation signal provided by the signal source and the first radiator and the second radiator is 180 degrees.

4. The electronic device according to any one of claims 1 to 3, characterized in that, The electronic device also includes: A first switching circuit, one end of which is electrically connected to the first radiator and the other end grounded, is used to adjust the electrical length of the first radiator; and / or The second switching circuit has one end electrically connected to the second radiator and the other end grounded. The second switching circuit is used to adjust the electrical length of the second radiator.

5. The electronic device according to claim 4, characterized in that, When the electronic device includes the first switching circuit, the first radiator further includes a first electrical connection point, the first switching circuit is electrically connected to the first electrical connection point, and the distance between the first electrical connection point and the first end is less than the distance between the first electrical connection point and the second end. When the electronic device includes the second switching circuit, the second radiator also includes a second electrical connection point, the second switching circuit is electrically connected to the second electrical connection point, and the distance between the second electrical connection point and the third end is less than the distance between the second electrical connection point and the fourth end.

6. The electronic device according to any one of claims 1 to 3, characterized in that, The electronic device also includes: A first matching network, electrically connected to the signal source, is used to adjust the impedance of the excitation signal provided by the signal source; and / or, A second matching network, one end of which is electrically connected between the signal source and the first feed point, and the other end of which is grounded; and / or, A third matching network, one end of which is electrically connected between the signal source and the second feed point, and the other end of the second matching network is grounded.

7. The electronic device according to any one of claims 1 to 3, characterized in that, The branch length of the second radiator relative to the first side is greater than the branch length of the second radiator relative to the second side.

8. The electronic device according to any one of claims 1 to 3, characterized in that, The electronic device further includes a first frame and a second frame that are bent and connected, wherein the first frame extends in the same direction as the first side, and the second frame extends in the same direction as the second side; wherein, A first gap and a second gap are formed on the first frame, and a third gap is formed on the second frame, so that a first radiator is formed between the first gap and the second gap, and a second radiator is formed between the second gap and the third gap.

9. The electronic device according to claim 8, characterized in that, The distance between the first gap and the second frame is greater than or equal to two-thirds of the length of the first frame; and / or, The distance between the third gap and the first frame is greater than or equal to one-quarter of the length of the second frame.

10. The electronic device according to any one of claims 1 to 3, characterized in that, The signal source is used to excite the first radiator and the second radiator to jointly support low-frequency band wireless signals.

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