Electronic device

Abstract

According to the electronic equipment, a third radiator, a first radiator and a second radiator are sequentially arranged at intervals, and the ends, away from the first radiator, of the third radiator and the second radiator are grounded; the first adjusting circuit is electrically connected between the signal source and a feeding point of the first radiator, the second adjusting circuit is electrically connected to the second radiator and is grounded, and the third adjusting circuit is electrically connected to the third radiator and is grounded; the signal source excites the first radiator to support switching of first wireless signals of different sub-bands under the action of the first adjusting circuit, excites the second radiator to support second wireless signals under the adjusting action of the second adjusting circuit in the state that the first wireless signals are switched to the different sub-bands, and excites the second radiator to support the second wireless signals under the adjusting action of the second adjusting circuit. At least one of the first radiator and the third radiator is excited to support a third wireless signal through the adjusting effect of the third adjusting circuit. On the basis, the electronic equipment can realize residence of the second wireless signal and the third wireless signal, and the radiation performance can be improved.

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 smart phones can realize more and more functions, the communication modes of electronic devices are more diversified, and the number of antenna radiators installed inside electronic devices is also increasing.

[0003] However, with the development of electronic technology, electronic devices are becoming increasingly miniaturized, lighter and thinner, and the internal space of electronic devices is also becoming smaller and smaller, so how to reasonably set the antenna of the electronic device has become a difficult problem. Summary of the invention

[0004] The present application provides an electronic device, which can achieve miniaturization design.

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

[0006] A first radiator, comprising a first end, a feeding point, a grounding point and a second end which are arranged in sequence, wherein the grounding point is located in the middle of the first radiator;

[0007] A signal source, electrically connected to the feeding point;

[0008] A first regulating circuit, electrically connected between the signal source and the feeding point;

[0009] A second radiator is located at a side of the first end away from the second end, the second radiator comprises a first free end and a first grounding end, the first free end is spaced apart from the first end, and the first grounding end is grounded;

[0010] a second regulating circuit, wherein one end of the second regulating circuit is electrically connected between the first free end and the first ground end, and the other end of the second regulating circuit is grounded;

[0011] a third radiator, located at a side of the second end away from the first end, the third radiator comprising a second free end and a second ground end, the second free end is spaced apart from the second end, and the second ground end is grounded;

[0012] A third regulating circuit, one end of the third regulating circuit is electrically connected between the second free end and the second ground end, and the other end is grounded; wherein,

[0013] The signal source is used to stimulate the first radiator to support switching of the first wireless signal of different sub-bands under the action of the first adjustment circuit, and when the first wireless signal is switched to a different sub-band, stimulate the second radiator to support the second wireless signal through the adjustment action of the second adjustment circuit, and stimulate at least one of the first radiator and the third radiator to support the third wireless signal through the adjustment action of the third adjustment circuit.

[0014] In the electronic device of the present application, the first radiator is arranged between the second radiator and the third radiator, and the first radiator can be capacitively coupled with the second radiator and the third radiator. Under the action of the first adjustment circuit, the signal source can stimulate the first radiator to support the switching of the first wireless signal of different sub-bands, and when the first wireless signal is switched to a different sub-band, the second radiator is stimulated to support the second wireless signal through the adjustment action of the second adjustment circuit, and at least one of the first radiator and the third radiator is stimulated to support the third wireless signal through the adjustment action of the third adjustment circuit. Based on this, on the one hand, the electronic device can support wireless signals of different frequency bands, can broaden the bandwidth of the electronic device, and improve the adaptability of the electronic device; on the other hand, the co-feed setting of the first radiator, the second radiator and the third radiator can reduce the number of feed components, save the cost of the electronic device, simplify the internal space design of the electronic device, and realize the miniaturization design of the electronic device; on the other hand, when the electronic device switches between the first wireless signals of different sub-frequency bands, the electronic device can realize the coexistence of the first wireless signal with the second wireless signal and the third wireless signal, and the second wireless signal and the third wireless signal can be resident, which can not only ensure that the first wireless signal covers a wider frequency band range, but also ensure the radiation performance of the second wireless signal and the third wireless signal. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] 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.

[0016] Figure 1 A first structural schematic diagram of an electronic device provided in an embodiment of the present application.

[0017] Figure 2 for Figure 1 The first current schematic diagram of the electronic device shown.

[0018] Figure 3 for Figure 1 A second current diagram of the electronic device shown.

[0019] Figure 4 for Figure 1 A third current diagram of the electronic device shown.

[0020] Figure 5 for Figure 1 A fourth current diagram of the electronic device shown.

[0021] Figure 6 for Figure 1 A schematic diagram of an S-parameter curve of an electronic device is shown.

[0022] Figure 7 A second structural schematic diagram of an electronic device provided in an embodiment of the present application.

[0023] Figure 8 for Figure 7 The first electrical connection diagram of the regulating module is shown.

[0024] Fig. 9 for Figure 7 A schematic diagram of an S-parameter curve of an electronic device is shown.

[0025] Fig.10 for Figure 7 The second electrical connection diagram of the regulating module is shown.

[0026] Fig.11 for Fig.10 A logic control diagram of the electronic device shown.

[0027] Fig.12 A third structural schematic diagram of the electronic device provided in an embodiment of the present application.

[0028] Fig.13 A fourth structural schematic diagram of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0029] The following will be combined with the embodiments of this application Figures 1 to 13 , 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.

[0030] The present application embodiment provides an electronic device 10, which may be a smart phone, a tablet computer, or a gaming device, an augmented reality (AR) device, an automotive device, a data storage device, an audio player, a video player, a laptop, a desktop computing device, etc. 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 includes a first radiator 110 , a second radiator 120 , a third radiator 130 and a signal source 140 .

[0031] The first radiator 110 may include a first end 111, a feeding point 112, a grounding point 113, and a second end 114 arranged in sequence. The first end 111 and the second end 114 may be two ends of the first radiator 110. The grounding point 113 may be located in the middle of the first radiator 110 and grounded. The feeding point 112 may be located between the first end 111 and the grounding point 113. The second radiator 120 is located on a side of the first end 111 of the first radiator 110 away from the second end 114. The second radiator 120 includes a first free end 121 and a first grounding end 122. The first free end 121 is spaced apart from the first end 111 of the first radiator 110 and forms a first coupling gap S1. The first grounding end 122 may extend in a direction away from the first radiator 110 and be grounded. The third radiator 130 is located at a side of the second end 114 of the first radiator 110 away from the first end 111. The third radiator 130 includes a second free end 131 and a second ground end 132. The second free end 131 is spaced apart from the second end 114 of the first radiator 110 and forms a second coupling gap S2. The second ground end 132 can extend in a direction away from the first radiator 110 and be grounded. The signal source 140 is directly or indirectly electrically connected to the feeding point 112 of the first radiator 110. The signal source 140 can provide an excitation signal to excite the first radiator 110, the second radiator 120 and the third radiator 130 to generate at least three resonance modes.

[0032] The electronic device 10 may further include a ground plane 150, and the ground point 113 of the first radiator 110, the first ground terminal 122 of the second radiator 120, and the second ground terminal 132 of the third radiator 130 may be directly or indirectly electrically connected to the ground plane 150 to achieve grounding. The ground plane 150 may form a common ground. The ground plane 150 may be a plane or structure with a zero potential. Among them, the ground plane 150 may be formed by a conductor, a printed circuit, or a metal printed layer in the electronic device 10; the ground plane 150 may be formed on a main board, a small board, or other supporting board of the electronic device 10; or, the ground plane 150 may also be formed on the frame of the electronic device 10. The embodiment of the present application does not limit the specific setting position of the ground plane 150.

[0033] Among them, the first radiator 110, the second radiator 120 and the third radiator 130 are conductor structures that can support wireless signal transmission and reception. For example, under the stimulation of the signal source 140, at least one of the first radiator 110, the second radiator 120 and the third radiator 130 can support the transmission of Wireless Fidelity (Wi-Fi) signals, Global Positioning System (GPS) signals, third-generation mobile communication technology (3rd-Generation, 3G), fourth-generation mobile communication technology (4th-Generation, 4G), fifth-generation mobile communication technology (5th-Generation, 5G), near field communication (NFC), Bluetooth (BT), Ultra WideBand (UWB), etc. The embodiment of the present application is not limited to this.

[0034] It is understandable that at least one of the first radiator 110, the second radiator 120, and the third radiator 130 may be, but not limited to, a metal branch radiator, a printed circuit board radiator, or a silver paste spray radiator. Furthermore, one or more of the first radiator 110, the second radiator 120, and the third radiator 130 may be, but not limited to, a long strip structure or a bent structure. The embodiment of the present application does not limit the specific formation method and specific shape of the three radiators.

[0035] It can be understood that the grounding point 113 of the first radiator 110 is located in the middle of the first radiator 110, which means that the distance between the setting area of ​​the grounding point 113 and the midpoint of the physical branch of the first radiator 110 is within a preset range. For example, the distance between the grounding point 113 and the midpoint of the physical branch of the first radiator 110 can be between 0 mm and one-quarter of the length of the physical branch of the entire first radiator 110 (including 0 mm and one-quarter of the length of the entire branch). In addition, the feeding point 112 of the first radiator 110 can be located between the first end 111 and the grounding point 113, the feeding point 112 of the first radiator 110 is closer to the first end 111 and farther away from the second end 114, and the first radiator 110 can form a T-shaped antenna.

[0036] It can be understood that the first radiator 110 is located between the second radiator 120 and the third radiator 130, the first free end 121 of the second radiator 120 can be arranged opposite to the first end 111 of the first radiator 110, the second radiator 120 can form a mouth-to-mouth antenna pair with the first radiator 110, the first radiator 110 can be capacitively coupled with the second radiator 120, and the excitation signal provided by the signal source 140 can be electromagnetically coupled to the second radiator 120 through the first radiator 110. Similarly, the second free end 131 of the third radiator 130 can be arranged opposite to the second end 114 of the first radiator 110, the third radiator 130 can form a mouth-to-mouth antenna pair with the first radiator 110, the first radiator 110 can be capacitively coupled with the third radiator 130, and the excitation signal provided by the signal source 140 can be electromagnetically coupled to the third radiator 130 through the first radiator 110. Capacitive coupling means that when an electric field is generated between two radiators, the signal on one radiator can be transmitted to the other radiator through the electric field, so that the two radiators can achieve electrical signal conduction even if they are not in direct contact or connection.

[0037] The signal source 140 may be a radio frequency transceiver of the electronic device 10. The signal source 140 may convert high-frequency excitation current or bound electromagnetic waves into radiated electromagnetic energy; at the same time, the first radiator 110, the second radiator 120, and the third radiator 130 may also capture and bind electromagnetic waves in the free space and transmit them to the signal source 140 to form a current signal, so that the three radiators can receive wireless signals.

[0038] It can be understood that when the signal source 140 provides an excitation signal, the excitation signal can be transmitted to the first radiator 110 through the feeding point 112. At the same time, the excitation signal can also be capacitively coupled to the second radiator 120 through the gap between the first radiator 110 and the second radiator 120. The excitation signal can also be capacitively coupled to the third radiator 130 through the gap between the first radiator 110 and the third radiator 130, so that the signal source 140 at least excites the first radiator 110, the second radiator 120 and the third radiator 130 to produce three resonance modes, and the electronic device 10 can support more wireless signals.

[0039] In the electronic device 10 of the embodiment of the present application, the first radiator 110 is arranged between the second radiator 120 and the third radiator 130, and can be capacitively coupled with the second radiator 120 and the third radiator 130. The signal source 140 can excite the first radiator 110, the second radiator 120 and the third radiator 130 to generate at least three resonance modes. On the one hand, the electronic device 10 can support wireless signals of different frequency bands, can broaden the bandwidth of the electronic device 10, and improve the adaptability of the electronic device 10; on the other hand, the first radiator 110, the second radiator 120 and the third radiator 130 are co-fed, which can reduce the number of feed components, save the cost of the electronic device 10, simplify the internal space design of the electronic device 10, and realize the miniaturization design of the electronic device 10.

[0040] The signal source 140 can excite the first radiator 110, the second radiator 120 and the third radiator 130 to generate at least one of the first resonance mode, the second resonance mode, the third resonance mode and the fourth resonance mode. Figures 2 to 6 , Figure 2 for Figure 1 A first current diagram of the electronic device 10 is shown, Figure 3 for Figure 1 The second current diagram of the electronic device 10 is shown. Figure 4 for Figure 1 The third current diagram of the electronic device 10 is shown. Figure 5 for Figure 1 A fourth current diagram of the electronic device 10 is shown. Figure 6 for Figure 1 A schematic diagram of an S-parameter curve of the electronic device 10 is shown.

[0041] like Figure 2 As shown, the signal source 140 can excite the radiation section between the first end 111 and the grounding point 113 of the first radiator 110 to generate a first resonance mode, and the first resonance mode can generate a first resonance current I1 on the first radiator 110. The first resonance current I1 can flow from the first end 111 to the grounding point 113 and can return to the ground from the grounding point 113. The first resonance mode can excite the first radiator 110 to support the transmission and reception of the first wireless signal. For example, Figure 5 The middle curve S1 is the S parameter curve of the electronic device 10 when the signal source 140 is working. It can be seen from the A area of ​​the curve S1 that the signal source 140 can excite the first resonance mode, and the first resonance mode can support wireless signals in the B3 frequency band (1710MHz-1880MHz) or the N3 frequency band (1710MHz-1880MHz). It can be understood that the first resonance mode generated by the first radiator 110 can be the main radiation mode of the electronic device 10, and the first resonance mode can be but is not limited to supporting wireless signals in the medium and high frequency bands.

[0042] like Figure 3 As shown, the signal source 140 can also excite the second radiator 120 to generate a second resonance mode, and the second resonance mode can generate a second resonance current I2 on the second radiator 120. The second resonance current I2 can flow from the first free end 121 toward the first ground end 122 and can return to the ground from the first ground end 122. The second resonance mode can excite the second radiator 120 to support the transmission and reception of the second wireless signal. For example, Figure 5 It can be seen from the B area of ​​the middle curve S1 that the signal source 140 can excite and generate the second resonance mode, and the second resonance mode can support 2.4G Wi-Fi signals.

[0043] like Figure 4 As shown, the signal source 140 can also excite the radiation section between the feed point 112 and the second end 114 of the first radiator 110 to generate a third resonance mode, and the third resonance mode can generate a third resonance current I3 on ​​the first radiator 110, and the third resonance current I3 can flow in the direction from the feed point 112 to the second end 114 of the first radiator 110. The third resonance mode can excite the first radiator 110 to support the transmission and reception of the third wireless signal. For example, Figure 5 It can be seen from the C region of the middle curve S1 that the signal source 140 can excite the third resonance mode, and the third resonance mode can support wireless signals in the N78 frequency band (3400 MHz-3600 MHz).

[0044] like Figure 5 As shown, the signal source 140 can also excite the third radiator 130 to generate a fourth resonance mode, and the fourth resonance mode can generate a fourth resonance current I4 on the third radiator 130. The fourth resonance current I4 can flow along the second ground end 132 toward the second free end 131 and can return to the ground from the second ground end 132. It can be understood that the fourth resonance mode can excite the third radiator 130 to support the transmission and reception of the fourth wireless signal; or, the fourth resonance mode can support the transmission and reception of the third wireless signal together with the third resonance mode; or, the fourth resonance mode can also support the transmission and reception of the first wireless signal together with the first resonance mode.

[0045] It can be understood that the second resonance mode can be mainly excited by the second radiator 120, and the fourth resonance mode can be mainly excited by the third radiator 130. In this process, the contribution rate of the first radiator 110 to the second resonance mode and the fourth resonance mode can be ignored. The signal source 140 can mainly excite the second radiator 120 to generate the second resonance mode, and the signal source 140 can also mainly excite the third radiator 130 to generate the second resonance mode. Of course, it can also be said that the second resonance mode is jointly generated by the second radiator 120 as the main radiation branch and the first radiator 110 as the auxiliary radiation branch, and the signal source 140 can excite the second radiator 120 and the first radiator 110 to jointly generate the second resonance mode; the fourth resonance mode can be jointly generated by the third radiator 130 as the main radiation branch and the first radiator 110 as the auxiliary radiation branch, and the signal source 140 can excite the third radiator 130 and the first radiator 110 to jointly generate the fourth resonance mode. The embodiment of the present application does not limit the specific forms of the second resonance mode and the fourth resonance mode.

[0046] It can be understood that the fourth resonance mode can enhance the antenna efficiency when the first resonance mode supports the first wireless signal. Among them, the fourth resonance mode and the first resonance mode can be two independent resonance modes, and the frequency band range of the fourth resonance mode can be spaced from the frequency band range of the first resonance mode, and the frequency band ranges of the two are within a smaller interval range, so that the fourth resonance mode can enhance the antenna efficiency of the first resonance mode. Exemplarily, in the spectrum, the frequency band range corresponding to the fourth resonance mode can be lower than the frequency band range corresponding to the first resonance mode, and the frequency band range interval between the two can be approximately in the range of 100MHz-300MHz. At this time, the fourth resonance mode can better enhance the antenna efficiency of the first resonance mode. Of course, the matching parameters of the electronic device 10 can also be adjusted so that the fourth resonance mode can be independent of the first resonance mode and does not enhance the antenna efficiency of the first resonance mode when supporting the first wireless signal. At this time, the fourth resonance mode can further broaden the bandwidth of the electronic device 10. The embodiment of the present application does not limit the specific form of the fourth resonance mode and the first resonance mode.

[0047] It should be noted that the fourth resonance mode can also enhance the antenna efficiency when the third resonance mode supports the third wireless signal, and the frequency band range of the fourth resonance mode can be spaced apart from the frequency band range of the third resonance mode through parameter configuration, and the frequency band ranges of the two are within a smaller interval range, so that the fourth resonance mode can enhance the antenna efficiency of the third resonance mode. This embodiment of the application is not limited to this.

[0048] It is understandable that the first resonance mode, the second resonance mode, the third resonance mode, and the fourth resonance mode support different frequency bands of wireless signals, so that the electronic device 10 can support wireless signals of different frequency bands and the electronic device 10 can have a wider bandwidth.

[0049] It is understandable that at least one of the first resonance mode, the second resonance mode, the third resonance mode, and the fourth resonance mode can support wireless signals in a quarter-wavelength mode. Of course, at least one of the four resonance modes can also support wireless signals in other modes, such as but not limited to a half-wavelength mode or a three-quarter-wavelength mode, which is not limited in the embodiments of the present application.

[0050] It can be understood that the signal source 140 can simultaneously excite the first radiator 110, the second radiator 120 and the third radiator 130 to generate the first resonance mode, the third resonance mode, the second resonance mode and the fourth resonance mode. At this time, the excitation signal provided by the signal source 140 can generate different resonance current paths on the first radiator 110, the second radiator 120 and the third radiator 130 so that the first radiator 110, the second radiator 120 and the third radiator 130 generate the first resonance mode, the second resonance mode, the third resonance mode and the fourth resonance mode. Of course, by adjusting the electrical connection parameters of the first radiator 110, the second radiator 120 and the third radiator 130, the signal source 140 can also excite only one or more resonance modes among the first resonance mode, the third resonance mode, the second resonance mode and the fourth resonance mode. In addition to exciting the first radiator 110, the second radiator 120 and the third radiator 130 to generate the first resonance mode, the second resonance mode, the third resonance mode and the fourth resonance mode, the signal source 140 can also excite the three radiators to generate other resonance modes. The embodiment of the present application does not limit the specific resonance modes generated by the three radiators of the signal source 140.

[0051] In the electronic device 10 of the embodiment of the present application, the signal source 140 can excite the first radiator 110, the second radiator 120 and the third radiator 130 to generate the first resonance mode, the second resonance mode, the third resonance mode and the fourth resonance mode, which can further broaden the bandwidth of the electronic device 10 and realize the miniaturized design of the electronic device 10.

[0052] Among them, please refer to Figure 7 , Figure 7 The second structural diagram of the electronic device 10 provided in the embodiment of the present application. The electronic device 10 may further include an adjustment module 160 .

[0053] The adjustment module 160 may be electrically connected to at least one of the first radiator 110, the second radiator 120, and the third radiator 130. The adjustment module 160 may tune the frequency range of the wireless signal supported by at least one resonance mode generated by the first radiator 110, the second radiator 120, and the third radiator 130. For example, the adjustment module 160 may tune the frequency range of the wireless signal supported by at least one resonance mode of the first resonance mode, the third resonance mode, the second resonance mode, and the fourth resonance mode.

[0054] It is understandable that the adjustment module 160 can be directly or indirectly electrically connected to the first radiator 110, the second radiator 120 and the third radiator 130 at the same time, so that the adjustment module 160 can tune the frequency range of the wireless signal supported by the first resonance mode to the fourth resonance mode generated by the first radiator 110, the second radiator 120 and the third radiator 130. Of course, the adjustment module 160 can also be electrically connected to one or two of the first radiator 110, the second radiator 120 and the third radiator 130, so that the adjustment module 160 can tune the frequency range of the wireless signal supported by one or several resonance modes of the resonance modes generated by the three radiators. The embodiment of the present application does not limit the specific electrical connection form of the adjustment module 160.

[0055] It is understandable that the adjustment module 160 may include, but is not limited to, one or more (two or more) capacitors, inductors, switches, and other components, so that the adjustment module 160 can tune the frequency band of the wireless signal supported by the resonant mode. The embodiment of the present application does not limit the specific structure of the adjustment module 160.

[0056] When the electronic device 10 does not include the adjustment module 160, the frequency band covered by the electronic device 10 under the excitation of the signal source 140 is narrow. For example, when the first resonance mode supports medium and high frequency wireless signals, the electronic device 10 can cover the range of 1700MHz to 2000MHz, while the basic required frequency range of the medium and high frequency bands currently used is 1700MHz to 2700MHz, so it is necessary to further improve the bandwidth performance of the electronic device 10.

[0057] The electronic device 10 of the embodiment of the present application includes an adjustment module 160, which can adjust the frequency range of the wireless signal supported by at least one resonant mode generated by the first radiator 110, the second radiator 120 and the third radiator 130, thereby expanding the bandwidth of the wireless signal supported by the electronic device 10, so that the electronic device 10 can cover the required frequency band and the electronic device 10 has better bandwidth performance.

[0058] Please combine Figure 7 Please also refer to Figure 8 , Figure 8 for Figure 7 The first electrical connection diagram of the adjustment module 160 is shown. The adjustment module 160 may include a first adjustment circuit 161, a second adjustment circuit 162 and a third adjustment circuit 163. Under the action of the first adjustment circuit 161, the signal source 140 can stimulate the first radiator 110 to support the switching of the first wireless signal of different sub-bands, and when the first wireless signal is switched to a different sub-band, at least through the adjustment action of the second adjustment circuit 162, stimulate the second radiator 120 to support the second wireless signal, and at least through the adjustment action of the third adjustment circuit 163, stimulate at least one of the first radiator 110 and the third radiator 130 to support the third wireless signal.

[0059] It can be understood that the first adjustment circuit 161 can be directly or indirectly electrically connected between the signal source 140 and the feeding point 112 of the first radiator 110. The first adjustment circuit 161 can be, but not limited to, adjusting the frequency range of the resonance mode supported by the first radiator 110. For example, the first adjustment circuit 161 can be, but not limited to, adjusting the frequency range supported by the first resonance mode and the third resonance mode. Wherein, under the left and right of the first adjustment circuit 161, the signal source 140 can stimulate the first radiator 110 to support the switching of the first wireless signal of different sub-bands.

[0060] It can be understood that one end of the second adjustment circuit 162 can be directly or indirectly electrically connected between the first free end 121 and the first grounding end 122 of the second radiator 120. For example, a first electrical connection point 123 can be provided on the second radiator 120, and the first electrical connection point 123 can be located between the first free end 121 and the first grounding end 122. One end of the second adjustment circuit 162 can be electrically connected to the first electrical connection point 123. The first electrical connection point 123 can be, but is not limited to, provided in an area closer to the first free end 121 and relatively far from the first grounding end 122. The other end of the second adjustment circuit 162 can be directly or indirectly electrically connected to the ground plane 150 to achieve grounding. Among them, the second adjustment circuit 162 can be, but is not limited to, adjusting the frequency range of the resonant mode supported by the second radiator 120. For example, the second adjustment circuit 162 can adjust the frequency range supported by the second resonant mode. When the signal source 140 stimulates the first radiator 110 to switch the first wireless signal to a different sub-frequency band, under the action of the second adjustment circuit 162, the signal source 140 can also stimulate the second radiator 120 to maintain a state of supporting the second wireless signal to avoid frequency deviation of the second wireless signal supported by the second radiator 120 and affect the radiation performance of the second wireless signal. The second wireless signal can coexist with the first wireless signal of different sub-frequency bands, and the second wireless signal can be resident.

[0061] It can be understood that one end of the third adjustment circuit 163 can be directly or indirectly electrically connected between the second free end 131 and the second ground end 132 of the third radiator 130. For example, a second electrical connection point 133 can be provided on the third radiator 130, and the second electrical connection point 133 can be located between the second free end 131 and the second ground end 132. One end of the third adjustment circuit 163 can be electrically connected to the second electrical connection point 133. It can be understood that the second electrical connection point 133 can be, but is not limited to, provided in a region closer to the second free end 131 and relatively far from the second ground end 132. The other end of the third adjustment circuit 163 can be directly or indirectly electrically connected to the ground plane 150 to achieve grounding. Among them, the third adjustment circuit 163 can be, but not limited to, adjusting the frequency range of the resonance mode supported by the third radiator 130. Since the third radiator 130 can be capacitively coupled with the first radiator 110, the third adjustment circuit 163 can also adjust the frequency range of the resonance mode supported by the first radiator 110. Therefore, the third adjustment circuit 163 can be, but not limited to, adjusting the frequency range supported by at least one of the third resonance mode and the fourth resonance mode. For example, even when the first wireless signal is switched to a different sub-band, under the joint action of the first adjustment circuit 161 and the third adjustment circuit 163, at least one of the first radiator 110 and the third radiator 130 can still generate a third resonance mode supporting the third wireless signal, thereby avoiding the third wireless signal from generating a frequency deviation, the third wireless signal can coexist with the first wireless signal of a different sub-band, and the third wireless signal can be resident.

[0062] It can be understood that, under the regulation of the first regulation circuit 161 and the third regulation circuit 163, the signal source 140 can stimulate the first radiator 110 to support the transmission and reception of the third wireless signal (for example, the first radiator 110 supports the transmission and reception of the third wireless signal in the third resonance mode), the signal source 140 can also stimulate the third radiator 130 to support the transmission and reception of the third wireless signal (for example, the third radiator 130 supports the transmission and reception of the third wireless signal in the fourth resonance mode), and the signal source 140 can also stimulate the first radiator 110 and the third radiator 130 to jointly support the transmission and reception of the third wireless signal. The embodiment of the present application is not limited to this.

[0063] It can be understood that at least one of the first regulating circuit 161, the second regulating circuit 162, and the third regulating circuit 163 may include, but is not limited to, components such as inductors, capacitors, switches, etc., so that at least one regulating circuit can change the electrical length of the corresponding radiator. The so-called electrical length refers to the length of the radiator when it radiates a signal. The electrical length of the radiator may be greater than, less than, or equal to its branch length. The electrical length of the radiator may be associated with the frequency supported by the radiator. When the electrical length of the radiator is longer, the radiator may support wireless signals with lower frequencies; when the electrical length of the radiator is shorter, the radiator may support wireless signals with higher frequencies. The radiator may change its electrical length by electrically connecting circuits with different impedances.

[0064] It can be understood that, under the action of at least one of the first adjustment circuit 161, the second adjustment circuit 162, and the third adjustment circuit 163, one, two, or three of the first radiator 110, the second radiator 120, and the third radiator 130 can support at least one of the first wireless signal, the third wireless signal, and the second wireless signal. Moreover, under the action of at least one adjustment circuit, at least one radiator can also support the third wireless signal, or the second wireless signal, or the third wireless signal and the second wireless signal while supporting the first wireless signal, so as to realize the permanent presence of at least one of the third wireless signal and the second wireless signal.

[0065] The electronic device 10 of the embodiment of the present application can support wireless signals of different frequency bands under the action of three radiators and three adjustment circuits, can widen the bandwidth of the electronic device 10, and improve the adaptability of the electronic device 10; on the other hand, the co-feed arrangement of the first radiator 110, the second radiator 120 and the third radiator 130 can reduce the number of feed components, save the cost of the electronic device 10, simplify the internal space design of the electronic device 10, and realize the miniaturization design of the electronic device 10; on the other hand, the electronic device 10 can realize the coexistence of the first wireless signal and the third wireless signal and the second wireless signal, and the third wireless signal and the second wireless signal can be resident, which can ensure the radiation performance of the third wireless signal and the second wireless signal.

[0066] Wherein, under the action of the first adjustment circuit 161, the signal source 140 can stimulate the first radiator 110 to support the switching of the first wireless signal of different sub-bands; the signal source 140 can stimulate the first resonance mode generated by the radiation section between the first end 111 and the grounding point 113 of the first radiator 110 and support the first wireless signal. Figure 2 As shown, the first resonance mode may form a first resonance current I1 flowing from the first end 111 to the ground point 113 on the first radiator 110 .

[0067] It can be understood that when the first wireless signal includes multiple sub-frequency bands, the first adjustment circuit 161 may include multiple first adjustment branches with different impedance values. The first adjustment circuit 161 can switch between the multiple first adjustment branches so that the first radiator 110 can have different electrical lengths through the first adjustment branches with different impedance values. The first adjustment circuit 161 switches between the multiple first adjustment circuits 161 so that the first resonance mode can support the transmission and reception of the first wireless signal in different sub-frequency bands, thereby widening the bandwidth of the wireless signal supported by the first resonance mode.

[0068] It can be understood that the first wireless signal can be, but is not limited to, a middle frequency band and high frequency band (MHB, with a frequency between 1000MHz and 3000MHz). Under the action of the first adjustment circuit 161, the signal source 140 can excite the first radiator 110 to switch between different sub-bands of the first wireless signal supporting the MHB band. For example, but not limited to, when the first adjustment circuit 161 switches between multiple first adjustment branches, the signal source 140 can excite the first radiator to switch between the B1 sub-band signal (1920MHz-2170MHz), the B3 sub-band signal (1710MHz-1880MHz), the B40 sub-band signal (2300MHz-2400MHz), and the B41 sub-band signal (2496MHz-2690MHz) of the first wireless signal. Of course, the first wireless signal can also be a signal of other frequency bands, and the signal source 140 can excite the first radiator 110 to switch between multiple sub-bands of other first wireless signals. This embodiment of the present application is not limited to this.

[0069] It should be noted that the signal source 140 can also excite other radiators, such as at least one of the second radiator 120 and the third radiator 130, to support the first wireless signal; of course, the signal source 140 can also excite the first radiator 110 to support the first wireless signal with other resonant modes, and the embodiments of the present application are not limited to this.

[0070] Among them, when the first adjustment circuit 161 switches between multiple first adjustment branches so that the first resonance mode supports the transmission and reception of the first wireless signal in different sub-frequency bands, under the adjustment action of the second adjustment circuit 162, the second radiator 120 can also constantly generate the second resonance mode and support the transmission and reception of the second wireless signal under the excitation of the signal source 140.

[0071] It is understandable that under the action of the second adjustment circuit 162 , the signal source 140 can excite the entire second radiator 120 to generate a second resonance mode, and the second resonance mode can form a second resonance current I2 flowing from the first free end 121 to the first ground end 122 on the second radiator 120 .

[0072] It can be understood that the second adjustment circuit 162 may include multiple second adjustment branches with different impedance values. The second adjustment circuit 162 can switch between the multiple second adjustment branches according to the switching operation of the first adjustment circuit 161, so that when the first resonance mode supports the transmission and reception of the first wireless signal in different sub-frequency bands, the second resonance mode still supports the transmission and reception of the second wireless signal in the same frequency band. Under the adjustment action of the second adjustment circuit 162, the frequency band of the wireless signal supported by the second resonance mode does not change with the first resonance mode supporting the wireless signal in different frequency bands.

[0073] It is understandable that the second wireless signal may be different from the first wireless signal, and may also be different from the third wireless signal. For example, the second wireless signal may be, but is not limited to, a 2.4G Wi-Fi signal, and the signal source 140 is used to stimulate the first radiator 110 to switch between the first wireless signals of medium and high frequencies, and simultaneously stimulate the second radiator to support the third wireless signal of the 2.4G Wi-Fi frequency band.

[0074] It should be noted that the second wireless signal may also be a wireless signal of other frequency bands. The signal source 140 may also excite the second radiator to support the transmission and reception of the second wireless signal in other resonance modes, or the signal source 140 may also excite other radiators such as the third radiator 130 and the first radiator 110 to support the transmission and reception of the second wireless signal. The embodiment of the present application does not limit the formation method and specific frequency band of the second wireless signal.

[0075] Among them, when the first adjustment circuit 161 switches between multiple first adjustment branches so that the first resonance mode supports the transmission and reception of first wireless signals in different sub-frequency bands, through the adjustment action of the third adjustment circuit 163, the first radiator 110 can also constantly generate a third resonance mode and support the transmission and reception of a third wireless signal under the excitation of the signal source 140.

[0076] It can be understood that the signal source 140 can excite the third resonance mode generated in the radiation section between the feeding point 112 and the second end 114 of the first radiator 110 and support the transmission and reception of the third wireless signal. The third resonance mode can form a third resonance current I3 on ​​the second radiator 120 flowing from the feeding point 114 to the second end 112.

[0077] It is understandable that the third wireless signal may be different from the first wireless signal. For example, the lowest frequency of the third wireless signal may be higher than the highest frequency band of the first wireless signal. Exemplarily, the third wireless signal may be, but is not limited to, a signal in the N78 frequency band (3300MHz-3800MHz), and the signal source 140 is used to stimulate the first radiator 110 to switch between the first wireless signals of medium and high frequencies, and simultaneously stimulate the first radiator 110 to support the third wireless signal in the N78 frequency band.

[0078] It should be noted that the third wireless signal may also be a wireless signal of other frequency bands. The signal source 140 may also excite the first radiator 110 to support the transmission and reception of the third wireless signal in other resonance modes, or the signal source 140 may also excite other radiators such as the second radiator 120 and the third radiator 130 to support the transmission and reception of the third wireless signal. The embodiment of the present application does not limit the formation method and specific frequency band of the third wireless signal.

[0079] Among them, under the regulation of the third regulation circuit 163, the signal source 140 can also excite the third radiator 130 to generate a fourth resonance mode. The fourth resonance mode can be used as an auxiliary resonance mode, and the fourth resonance mode as an auxiliary resonance mode can also support the transmission and reception of the third wireless signal together with the third resonance mode as the main resonance mode.

[0080] It can be understood that the fourth resonance mode can also enhance the antenna efficiency when the first resonance mode generated by the first radiator 110 supports the first wireless signal (such as the MHB signal), or the fourth resonance mode can also enhance the antenna efficiency when the third resonance mode supports the third wireless signal (such as the N78 frequency band signal).

[0081] It is understandable that the fourth resonance mode can form a fourth resonance current I4 flowing from the second ground end 132 to the second free end 131 on the third radiator 130. Of course, the third radiator 130 can also form other resonance modes to support the antenna efficiency of the first wireless signal supported by the first resonance mode, and the embodiment of the present application is not limited to this.

[0082] Among them, the third adjustment circuit 163 may include multiple third adjustment branches with different impedance values. The third adjustment circuit 163 can switch between the multiple third adjustment branches according to the switching operation of the first adjustment circuit 161, so that when the first resonance mode supports the transmission and reception of the first wireless signal in different sub-frequency bands, the third resonance mode still supports the transmission and reception of the third wireless signal in the same frequency band. Under the adjustment action of the third adjustment circuit 163, the frequency band of the wireless signal supported by the third resonance mode does not change with the first resonance mode supporting the wireless signal in different frequency bands.

[0083] It can be understood that since the first radiator 110, the second radiator 120 and the third radiator 130 are fed by the same signal source 140, the three radiators are co-fed; therefore, when the first adjustment circuit 161 switches between different first adjustment branches, the first adjustment circuit 161 may change the frequency band of the wireless signal supported by the second resonance mode and the fourth resonance mode in addition to changing the frequency band of the wireless signal supported by the first resonance mode and the third resonance mode. If it is necessary to keep a certain frequency band of the third resonance mode permanent, a certain frequency band of the second resonance mode permanent, and a certain frequency band of the fourth resonance mode permanent, the electronic device 10 can control the second adjustment circuit 162 and the third adjustment circuit 163 to also perform adjustment operations, so that the frequency band of the third wireless signal supported by the third resonance mode and the frequency band of the second wireless signal supported by the second resonance mode do not change with the adjustment operation of the first adjustment circuit 161.

[0084] It can be understood that the electronic device 10 can individually control the second adjustment circuit 162 to switch between multiple second adjustment branches, so that when the first resonance supports the transceiving of the first wireless signal of different sub-bands, the second resonance mode supports the transceiving of the second wireless signal of the same frequency band. At this time, the frequency band of the wireless signal supported by the third resonance mode and the fourth resonance mode may produce a frequency deviation. The electronic device 10 can also individually control the third adjustment circuit 163 to switch between multiple third adjustment branches, so that when the first resonance supports the transceiving of the first wireless signal of different sub-bands, the third resonance mode supports the transceiving of the second wireless signal of the same frequency band. At this time, the frequency band of the wireless signal supported by the second resonance mode and the fourth resonance mode may produce a frequency deviation. Of course, the electronic device 10 can also simultaneously control the second adjustment circuit 162 to switch between multiple second adjustment branches, and the third adjustment circuit 163 to switch between multiple third adjustment branches, so that when the first resonance supports the transceiving of the first wireless signal of different sub-bands, the third resonance mode supports the transceiving of the third wireless signal of the same frequency band, and the second resonance mode supports the transceiving of the second wireless signal of the same frequency band.

[0085] Exemplarily, the signal source 140 can excite the radiation section between the first end 111 and the grounding point 113 of the first radiator 110 to generate a first resonance mode and support the transmission and reception of medium and high frequency wireless signals, and excite the second radiator 120 to generate a second resonance mode and support the transmission and reception of 2.4G wireless fidelity signals, and also excite the radiation section between the feeding point 112 and the second end 114 of the first radiator 110 to generate a third resonance mode and support the transmission and reception of wireless signals in the N78 frequency band. The first adjustment circuit 161 can switch between multiple first adjustment branches, so that the first resonance mode can support the transmission and reception of medium and high frequency wireless signals in different sub-bands (for example, but not limited to the B1 frequency band, the B3 frequency band, the B40 frequency band, and the B41 frequency band). The third adjustment circuit 163 can be adaptively adjusted according to the adjustment of the first adjustment circuit 161, so that the third resonance mode can keep the wireless signal in the N78 frequency band resident, and the fourth resonance mode can enhance the antenna efficiency when the first resonance mode supports the first wireless signal. The second adjustment circuit 162 can be adaptively adjusted according to the adjustment of the first adjustment circuit 161, so that the second resonance mode can keep the 2.4G Wi-Fi signal resident.

[0086] Among them, please refer to Fig. 9 , Fig. 9 for Figure 7 A schematic diagram of an S-parameter curve of the electronic device 10 is shown. Fig. 9 The middle curve S2 is the S parameter curve of the electronic device 10 when the first adjustment circuit 161 switches between multiple first adjustment branches so that the first resonance mode supports wireless signals in the B1 frequency band; the curve S3 is the S parameter curve of the electronic device 10 when the first adjustment circuit 161 switches between multiple first adjustment branches so that the first resonance mode supports wireless signals in the B3 frequency band; the curve S4 is the S parameter curve of the electronic device 10 when the first adjustment circuit 161 switches between multiple first adjustment branches so that the first resonance mode supports wireless signals in the B40 frequency band; the curve S5 is the S parameter curve of the electronic device 10 when the first adjustment circuit 161 switches between multiple first adjustment branches so that the first resonance mode supports wireless signals in the B41 frequency band.

[0087] When the first adjustment circuit 161 adjusts the first resonance mode to support the main resonance of the middle and high frequency bands, the third adjustment circuit 163 can adjust the frequency of the third resonance mode so that the N78 frequency band signal is permanent. Fig. 9 It can be seen from the curve S2 and the curve S3 that when the first resonance mode supports wireless signals in the B1 band or the B3 band, the third resonance mode can be generated before the 3.5G band through the adjustment of the third adjustment circuit 163 to support the N78 band signal to reside permanently. Fig. 9It can be seen from curves S4 and S5 that when the first resonance mode supports wireless signals in the B40 band or the B41 band, through the adjustment of the third adjustment circuit 163, a third resonance mode can be generated within the frequency band range after the 3.5G band to support the permanent N78 band signal.

[0088] Similarly, when the first adjustment circuit 161 adjusts the first resonance mode to support the main resonance in the middle and high frequency bands, the frequency of the second resonance mode can be adjusted by the second adjustment circuit 162 so that the 2.4G Wi-Fi signal is resident, such as Fig. 9 It can be seen from the curve S2 and the curve S3 that when the first resonance mode supports wireless signals in the B1 frequency band or the B3 frequency band, the second resonance mode can be generated in the 2.4G-2.5G frequency band through the adjustment of the second adjustment circuit 162 to achieve the permanent 2.4G Wi-Fi signal. Fig. 9 It can be seen from the curve S4 and the curve S5 that when the first resonance mode supports wireless signals in the B40 band or the B41 band, through the adjustment of the second adjustment circuit 162, a wide resonance can be generated within the frequency band range of 2.3G-2.5G and 2.4G-2.7G to take into account the B40 band or the B41 band and the 2.4G Wi-Fi band, so as to achieve the permanent residence of the 2.4G Wi-Fi signal.

[0089] The adjustment module 160 of the embodiment of the present application includes a first adjustment circuit 161, a second adjustment circuit 162 and a third adjustment circuit 163. The first adjustment circuit 161 can broaden the bandwidth of the first wireless signal supported by the first resonance mode to improve the adaptability of the electronic device 10; and, through the mutual cooperation of the three adjustment circuits, the frequency bands of the third resonance mode, the third wireless signal supported by the second resonance mode, and the second wireless signal can be not adjusted along with the adjustment of the first resonance mode, and the third wireless signal supported by the second resonance mode and the third resonance mode can be permanently maintained, thereby ensuring the stability of communication of the electronic device 10.

[0090] Among them, please refer to Fig.10 , Fig.10 for Figure 7 The second electrical connection diagram of the regulating module 160 is shown in FIG. 1 . The first regulating circuit 161 may include a first switch 1611 , a first inductive load branch 1612 , a second inductive load branch 1613 , a third inductive load branch 1614 and a first capacitive load branch 1615 .

[0091] The first inductive load branch 1612, the second inductive load branch 1613, the third inductive load branch 1614 and the first capacitive load branch 1615 may be a plurality of first regulating branches with different impedance values ​​of the first regulating circuit 161. The first switching switch 1611 includes a first input terminal a1, a first output terminal b1, a second output terminal b2, a third output terminal b3 and a fourth output terminal b4, wherein the first input terminal a1 may be directly or indirectly electrically connected to the feeding point 112 of the first radiator 110. One end of the first inductive load branch 1612 is directly or indirectly electrically connected to the first output terminal b1 of the first switching switch 1611, and the other end of the first inductive load branch 1612 is electrically connected to the ground plane 150 to achieve grounding. One end of the second inductive load branch 1613 is directly or indirectly electrically connected to the second output terminal b2 of the first switching switch 1611, and the other end of the second inductive load branch 1613 is electrically connected to the ground plane 150 to achieve grounding. One end of the third inductive load branch 1614 is directly or indirectly electrically connected to the third output terminal b3 of the first switch 1611, and the other end of the third inductive load branch 1614 is electrically connected to the ground plane 150 and grounded. One end of the first capacitive load branch 1615 is directly or indirectly electrically connected to the fourth output terminal b4 of the first switch 1611, and the other end of the first capacitive load branch 1615 is directly or indirectly electrically connected to the signal source 140.

[0092] It is understood that the so-called inductive load branch refers to a circuit or structure that allows current to flow, but the current lags behind the voltage. The inductive load branch is mainly a circuit with an inductive reactance element (such as an inductor) as the main load. In an AC circuit, when current passes through an inductor, an induced electromotive force is generated in the inductor, resulting in the storage and release of energy in the circuit, so it is called an inductive load. Typical inductive loads include components such as transformers and inductors. For example, the first inductive load branch 1612 may include a first inductor L1, the second inductive load branch 1613 may include a second inductor L2, and the third inductive load branch 1614 may include a third inductor L3. It should be noted that the three inductive load branches may also include other components, such as but not limited to a branch formed by multiple inductors and capacitors connected in series and in parallel. Any structure that can make the branch present an inductive load can be the first inductive load branch 1612, the second inductive load branch 1613 or the third inductive load branch 1614 of the embodiment of the present application.

[0093] It is understandable that the so-called capacitive load branch refers to a circuit or structure that can prevent current from flowing, but the current is ahead of the voltage. A circuit in a capacitive load branch mainly uses a capacitor as the main load. In an AC circuit, when a voltage acts on a capacitor, the capacitor accumulates charge, forms an electric field, and releases the charge when the voltage changes, so it is called a capacitive load. Typical capacitive loads include capacitive elements. For example, the first capacitive load branch 1615 may include a first capacitor C1. It should be noted that the first capacitive load branch 1615 may also include other structures, and any structure that can make the branch present a capacitive load can be the first capacitive load branch 1615 of an embodiment of the present application.

[0094] It can be understood that the first switch 1611 can conduct the connection between the first input terminal a1 and the first output terminal b1, so that the first radiator 110 can return to the ground through the first inductive load branch 1612; the first switch 1611 can also conduct the connection between the first input terminal a1 and the second output terminal b2, so that the first radiator 110 can return to the ground through the second inductive load branch 1613; the first switch 1611 can also conduct the connection between the first input terminal a1 and the third output terminal b3, so that the first radiator 110 can return to the ground through the third inductive load branch 1614; the first switch 1611 can also conduct the connection between the first input terminal a1 and the fourth output terminal b4, so that the first radiator 110 can return to the ground through the first capacitive load branch 1615. Of course, the first switch 1611 can also conduct the connection between the first input terminal a1 and multiple (two or more) output terminals, so that the first radiator 110 can return to the ground through multiple branches.

[0095] It is understandable that the first switch 1611 may be a single-pole multi-throw switch; or the first switch 1611 may include multiple single-pole single-throw switches; or the first switch 1611 may also be a multi-pole multi-throw switch. The specific structure of the first switch 1611 is not limited in the embodiment of the present application.

[0096] It can be understood that the impedance values ​​of the first inductive load branch 1612, the second inductive load branch 1613, and the third inductive load branch 1614 are different, so that the three inductive load branches can make the first radiator 110 have different electrical lengths. When the first adjustment circuit 161 switches between different inductive load branches and the first capacitive load branch 1615, the first resonance can support first wireless signals of different sub-bands. For example, the inductance value of the first inductor L1 can be 12N (nanohenry), the inductance value of the second inductor L2 can be 5.1N, the inductance value of the third inductor L3 can be 3.3N, and the capacitance value of the first capacitor can be 1.5P (picofarad).

[0097] Among them, Fig.10As shown, the first regulating circuit 161 may further include a second capacitive load branch 1616 and a fourth inductive load branch 1617 .

[0098] One end of the second capacitive load branch 1616 may be directly or indirectly electrically connected to the feed point 112 of the first radiator 110, and the other end of the second capacitive load branch 1616 may be directly or indirectly electrically connected to the signal source 140. One end of the fourth inductive load branch 1617 may be directly or indirectly electrically connected to the feed point 112 of the first radiator 110, and the other end of the fourth inductive load branch 1617 may be electrically connected to the ground plane 150 to achieve grounding.

[0099] It is understandable that the electronic device 10 may further include a matching network, which may include a second capacitive load branch 1616 and a fourth inductive load branch 1617. The second capacitive load branch 1616 and the fourth inductive load branch 1617 may jointly adjust the impedance matching when the signal source 140 provides an excitation signal. The so-called impedance refers to the obstruction to the excitation current in the circuit. When the internal resistance of the signal source 140 is equal to the characteristic impedance of the transmission line and has the same phase, or the characteristic impedance of the transmission line is equal to the connected load impedance and has the same phase, the input end or output end of the transmission line is respectively in an impedance matching state, referred to as impedance matching. The matching network can make the excitation signal provided by the signal source 140 in an impedance matching state to improve the radio frequency performance of the electronic device 10.

[0100] It can be understood that the second capacitive load branch 1616 may include a second capacitor C2, the capacitance value of which may be, but not limited to, 1.8P; the fourth inductive load branch 1617 may include a fourth inductor L4, the inductance value of which may be, but not limited to, 5.1N. Of course, the second capacitive load branch 1616 and the fourth inductive load branch 1617 may also be other structures, which are not limited here.

[0101] The first adjustment circuit 161 of the embodiment of the present application includes a first switching switch 1611, a first inductive load branch 1612, a second inductive load branch 1613, a third inductive load branch 1614 and a first capacitive load branch 1615. The first switching switch 1611 can expand the bandwidth of the first wireless signal supported by the first resonant mode when switching between different load branches; at the same time, the first adjustment circuit 161 includes a second capacitive load branch 1616 and a fourth inductive load branch 1617. The first adjustment circuit 161 can also have a matching adjustment function. Integrating the matching network in the first adjustment circuit 161 can simplify the circuit structure and reduce production costs.

[0102] Please refer again to Fig.10The second regulating circuit 162 includes a second switching switch 1621 , a fifth inductive load branch 1622 , a sixth inductive load branch 1623 , at least one zero-ohm load branch 1624 and a seventh inductive load branch 1625 .

[0103] The fifth inductive load branch 1622, the sixth inductive load branch 1623, at least one zero-ohm load branch 1624 and the seventh inductive load branch 1625 may be a plurality of second regulating branches with different impedances of the second regulating circuit 162. The second switching switch 1621 includes a second input terminal a2, a fifth output terminal b5, a sixth output terminal b6 and at least one seventh output terminal b7, and the second input terminal a2 is directly or indirectly electrically connected between the first free end 121 and the first ground terminal 122 of the second radiator 120, for example, the second input terminal a2 may be electrically connected to the first electrical connection point 123 of the second radiator 120. One end of the fifth inductive load branch 1622 is directly or indirectly electrically connected to the fifth output terminal b5 of the second switching switch 1621, and the other end of the fifth inductive load branch 1622 is electrically connected to the ground plane 150 to achieve grounding. One end of the sixth inductive load branch 1623 is directly or indirectly electrically connected to the sixth output terminal b6 of the second switch 1621, and the other end of the sixth inductive load branch 1623 is electrically connected to the ground plane 150 to achieve grounding. One end of each zero-ohm load branch 1624 is directly or indirectly electrically connected to a seventh output terminal b7 of the second switch 1621, and the other end of each zero-ohm load branch 1624 is electrically connected to the ground plane 150 to achieve grounding. The number of the seventh output terminals b7 of the second switch 1621 can be equal to the number of zero-ohm load branches 1624, so that at least one seventh output terminal b7 corresponds to at least one zero-ohm load branch 1624. One end of the seventh inductive load branch 1625 is directly or indirectly electrically connected to the second radiator 120, and the other end of the seventh inductive load branch 1625 is electrically connected to the ground plane 150 to achieve grounding.

[0104] It can be understood that the so-called zero-ohm load branch 1624 means that the branch returns to the ground through a component with a zero resistance value, or one end of the branch is connected to the second radiator 120 and the other end is directly returned to the ground so that there is no other impedance element between the second radiator 120 and the ground plane 150. Fig.10 As shown, the second regulating circuit 162 may include, but is not limited to, two zero-ohm load branches 1624 .

[0105] It can be understood that the second switch 1621 can conduct the connection between the second input terminal a2 and the fifth output terminal b5, so that the second radiator 120 can be grounded through the fifth inductive load branch 1622; the second switch 1621 can also conduct the connection between the second input terminal a2 and the sixth output terminal b6, so that the second radiator 120 can be grounded through the sixth inductive load branch 1623; the second switch 1621 can also conduct the connection between the second input terminal a2 and the seventh output terminal b7, so that the second radiator 120 can be grounded through at least one zero-ohm load branch 1624. The seventh inductive load branch 1625 can be always in a grounded state without being switched by the second switch 1621.

[0106] It is understandable that the second switch 1621 may be a single-pole multi-throw switch; or the second switch 1621 may include multiple single-pole single-throw switches; or the second switch 1621 may also be a multi-pole multi-throw switch. The specific structure of the second switch 1621 is not limited in the embodiment of the present application.

[0107] It can be understood that the impedance values ​​of the fifth inductive load branch 1622, the sixth inductive load branch 1623, and the seventh inductive load branch 1625 are different, so that different inductive load branches can make the second radiator 120 have different electrical lengths. When the second adjustment circuit 162 switches between different inductive load branches, the second resonance can support second wireless signals of different sub-bands. In addition, the second adjustment circuit 162 can also switch between multiple second adjustment branches according to the switching operation of the first adjustment circuit 161, so that when the first resonance supports the transmission and reception of first wireless signals of different sub-bands, the second resonance mode supports the transmission and reception of second wireless signals of the same frequency band.

[0108] For example, the fifth inductive load branch 1622 may include a fifth inductor L5, the inductance value of the fifth inductor L5 may be, but not limited to, 20 N; the sixth inductive load branch 1623 may include a sixth inductor L6, the inductance value of the sixth inductor L6 may be, but not limited to, 1.5 N; the seventh inductive load branch 1625 may include a seventh inductor L7, the inductance value of the seventh inductor L7 may be, but not limited to, 8.2 N. The embodiment of the present application does not limit the specific structures of the three inductive load branches.

[0109] The second adjustment circuit 162 of the embodiment of the present application includes a second switching switch 1621, a fifth inductive load branch 1622, a sixth inductive load branch 1623, at least one zero-ohm load branch 1624 and a seventh inductive load branch 1625. The second adjustment circuit 162 can not only expand the bandwidth of the second resonant mode, but also ensure that the signal of a certain frequency band supported by the second resonant mode is permanent, so that the electronic device 10 can adapt to different application scenarios.

[0110] Please refer again to Fig.10 The third regulating circuit 163 may include a third switching switch 1631 , an eighth inductive load branch 1632 , a ninth inductive load branch 1633 , a tenth inductive load branch 1634 and an eleventh inductive load branch 1635 .

[0111] The eighth inductive load branch 1632, the ninth inductive load branch 1633, the tenth inductive load branch 1634 and the eleventh inductive load branch 1635 may be a plurality of third adjustment branches with different impedance values ​​of the third adjustment circuit 163. The third switch 1631 may include a third input terminal a3, an eighth output terminal b8, a ninth output terminal b9, a tenth output terminal b10 and an eleventh output terminal b11, and the third input terminal a3 may be directly or indirectly electrically connected between the second free end 131 and the second ground terminal 132 of the third radiator 130, for example, the third input terminal a3 may be electrically connected to the second electrical connection point 133 of the third radiator 130. One end of the eighth inductive load branch 1632 is directly or indirectly electrically connected to the eighth output terminal b8 of the third switch 1631, and the other end of the eighth inductive load branch 1632 is electrically connected to the ground plane 150 to achieve grounding. One end of the ninth inductive load branch 1633 can be directly or indirectly electrically connected to the ninth output terminal b9 of the third switch 1631, and the other end of the ninth inductive load branch 1633 is electrically connected to the ground plane 150 to achieve grounding. One end of the tenth inductive load branch 1634 can be directly or indirectly electrically connected to the tenth output terminal b10 of the third switch 1631, and the other end of the tenth inductive load branch 1634 is electrically connected to the ground plane 150 to achieve grounding. One end of the eleventh inductive load branch 1635 can be directly or indirectly electrically connected to the eleventh output terminal b11 of the third switch 1631, and the other end of the eleventh inductive load branch 1635 is electrically connected to the ground plane 150 to achieve grounding.

[0112] It can be understood that the third switching switch 1631 can connect the third input terminal a3 with the eighth output terminal b8, so that the third radiator 130 can return to ground through the eighth inductive load branch 1632; the third switching switch 1631 can also connect the third input terminal a3 with the ninth output terminal b9, so that the third radiator 130 can return to ground through the ninth inductive load branch 1633; the third switching switch 1631 can also connect the third input terminal a3 with the tenth output terminal b10, so that the third radiator 130 can return to ground through the tenth inductive load branch 1634; the third switching switch 1631 can also connect the third input terminal a3 with the eleventh output terminal b11, so that the third radiator 130 can return to ground through the eleventh inductive load branch 1635.

[0113] It is understandable that the third switch 1631 may be a single-pole multi-throw switch; or the third switch 1631 may include multiple single-pole single-throw switches; or the third switch 1631 may also be a multi-pole multi-throw switch. The specific structure of the third switch 1631 is not limited in the embodiment of the present application.

[0114] It can be understood that the impedance values ​​of the eighth inductive load branch 1632 to the eleventh inductive load branch 1635 are different, so that different inductive load branches can make the radiator have different electrical lengths. When the third adjustment circuit 163 switches between different inductive load branches, the third resonance can support the second wireless signal of different sub-bands. In addition, the third adjustment circuit 163 can also switch between multiple third adjustment branches according to the switching operation of the first adjustment circuit 161, so that when the first resonance supports the transmission and reception of the first wireless signal of different sub-bands, the third resonance mode supports the transmission and reception of the third wireless signal of the same frequency band.

[0115] For example, the eighth inductive load branch 1632 may include an eighth inductor, and the inductance value of the eighth inductor may be, but is not limited to, 12N; the ninth inductive load branch 1633 may include a ninth inductor, and the inductance value of the ninth inductor may be, but is not limited to, 7.5N; the tenth inductive load branch 1634 may include a tenth inductor, and the inductance value of the tenth inductor may be, but is not limited to, 4.3N; the eleventh inductive load branch 1635 may include an eleventh inductor, and the inductance value of the eleventh inductor may be, but is not limited to, 3N. The embodiment of the present application does not limit the specific structure of the four inductive load branches.

[0116] The third adjustment circuit 163 of the embodiment of the present application includes a third switching switch 1631, and an eighth inductive load branch 1632 to an eleventh inductive load branch 1635. The third adjustment circuit 163 can not only expand the bandwidth of the third resonance mode, but also ensure that the signal of a certain frequency band supported by the third resonance mode is permanent, so that the electronic device 10 can adapt to different application scenarios.

[0117] Among them, the electronic device 10 can control the states of the first adjustment circuit 161, the second adjustment circuit 162, and the third adjustment circuit 163, so that the electronic device 10 can realize multi-mode switching of medium and high frequency bands, and realize the permanent residence of Wi-Fi signals and N78 frequency band signals during the switching process.

[0118] For example, please combine Fig.10 And refer to Fig.11 , Fig.11 for Fig.10A logic control diagram of the electronic device 10 is shown. The inductance values ​​of the first inductive load branch 1612, the second inductive load branch 1613, and the third inductive load branch 1614 can decrease in sequence; the inductance value of the fifth inductive load branch 1622 is greater than the inductance value of the sixth inductive load branch 1623; the inductance values ​​of the eighth inductive load branch 1632, the ninth inductive load branch 1633, the tenth inductive load branch 1634, and the eleventh inductive load branch 1635 decrease in sequence.

[0119] like Fig.11 As shown, when the first resonant mode supports the transmission and reception of the first wireless signal of the first sub-band, for example, the B1 band, the first switching switch 1611 can conduct the connection between the first input terminal a1 and the first output terminal b1, and the first inductive load branch 1612 can be grounded; the second switching switch 1621 conducts the connection between the second input terminal a2 and the fifth output terminal b5, and the fifth inductive load branch 1622 can be grounded; the third switching switch 1631 conducts the connection between the third input terminal a3 and the ninth output terminal b9, and the ninth inductive load branch 1633 can be grounded. At this time, the electronic device 10 can support B1 band signals, Wi-Fi signals, and N78 band signals at the same time.

[0120] When the first resonant mode supports the transmission and reception of the first wireless signal of the second sub-band, for example, the B3 band, the first switching switch 1611 disconnects the first input terminal a1 from all output terminals, and the first regulating circuit 161 can be electrically connected to the first radiator 110 and the signal source 140 through the second capacitive load branch 1616 and the fourth inductive load branch 1617. The second switching switch 1621 disconnects the second input terminal a2 from all output terminals, and the second regulating circuit 162 can be grounded through the seventh inductive load branch 1625. The third switching switch 1631 conducts the connection between the third input terminal a3 and the eighth output terminal b8, so that the eighth inductive load branch 1632 can be grounded. At this time, the electronic device 10 can simultaneously support B3 band signals, Wi-Fi signals, and N78 band signals.

[0121] When the first resonant mode supports the transmission and reception of the first wireless signal of the third sub-band, for example, the B40 band, the first switching switch 1611 conducts the connection between the first input terminal a1 and the second output terminal b2, and the second inductive load branch 1613 can be grounded. The second switching switch 1621 conducts the connection between the second input terminal a2 and the sixth output terminal b6, and the sixth inductive load branch 1623 can be grounded. The third switching switch 1631 conducts the connection between the third input terminal a3 and the tenth output terminal b10, and the tenth inductive load branch 1634 can be grounded. At this time, the electronic device 10 can simultaneously support B40 band signals, Wi-Fi signals, and N78 band signals.

[0122] When the first resonant mode supports the transmission and reception of the first wireless signal of the fourth sub-band, for example, the B41 band, the first switching switch 1611 conducts the connection between the first input terminal a1 and the third output terminal b3 and the fourth output terminal b4, the third inductive load branch 1614 can be grounded, and the first capacitive load branch 1615 can be electrically connected to the signal source 140. The second switching switch 1621 conducts the connection between the second input terminal a2 and the seventh output terminal b7, and at least one zero-ohm load branch 1624 can be grounded. The third switching switch 1631 conducts the connection between the third input terminal a3 and the eleventh output terminal b11, and the eleventh inductive load branch 1635 can be grounded. At this time, the electronic device 10 can simultaneously support B41 band signals, Wi-Fi signals, and N78 band signals.

[0123] It should be noted that the above is only an exemplary description of the first regulating circuit 161 to the third regulating circuit 163. The three regulating circuits may also include other structures, which are not limited in the embodiments of the present application. In addition, as the inductance and capacitance values ​​of different inductive load branches and capacitive load branches are different, the control methods of the above three switching switches are also different, and the embodiments of the present application do not limit the specific control methods of the three switching switches.

[0124] The electronic device 10 of the embodiment of the present application can switch between medium and high frequency modes by controlling different adjustment branches of the three adjustment circuits, and can also realize the permanent residence of Wi-Fi signals and N78 frequency band signals. The three adjustment circuits have a simple structure and a simple control method. At the same time, under the action of the three adjustment circuits, the medium and high frequency bands covered by the electronic device 10 can range from 1.7 GHz to 2.7 GHz, which is much higher than the medium and high frequency range of 1.7 GHz-2 GHz covered by the electronic device 10 when the adjustment circuit is not designed. The electronic device 10 of the embodiment of the present application can realize a three-radiator co-feeding scheme of a wide-band MHB signal + Wi-Fi signal + N78 signal under the action of the three adjustment circuits.

[0125] Please refer again to Figures 1 to 10 , the electronic device 10 may further include a matching circuit 170 .

[0126] One end of the matching circuit 170 may be directly or indirectly electrically connected to the ground point 113 of the first radiator 110, and the other end of the matching circuit 170 may be electrically connected to the ground plane 150 to achieve grounding. The matching circuit 170 may allow the resonant current generated by the first resonant mode to return to the ground, and may prevent the resonant current generated by the third resonant mode from returning to the ground.

[0127] It can be understood that since the first resonant mode is generated by the excitation of the radiation section between the first end 111 of the first radiator 110 and the grounding point 113, and the third resonant mode is generated by the excitation of the radiation section between the feeding point 112 and the second end 114 of the first radiator 110, the resonant current excited by the third resonant mode can pass through the grounding point 113. When the electronic device 10 is provided with a matching circuit 170, the matching circuit 170 can prevent the resonant current generated by the excitation of the third resonant mode from returning to the ground from the grounding point 113 and affecting the radiation performance of the third resonant mode.

[0128] It is understandable that the matching circuit 170 may include, but is not limited to, a small inductance element. For example, the matching circuit 170 may include a twelfth inductor L2 having an inductance value of 3N. Of course, the matching circuit 170 may also include other structures. Any circuit structure that allows the resonant current generated by the first resonant mode to return to the ground and prevents the resonant current generated by the third resonant mode from returning to the ground is within the protection scope of the embodiment of the present application. The embodiment of the present application does not limit the specific structure of the matching circuit 170.

[0129] It should be noted that the electronic device 10 may not include the matching circuit 170. In this case, the excitation signal provided by the signal source 140 can generate a resonant current path from the ground point 113 back to the ground on the first radiator 110 to stimulate the first radiator 110 to generate the first resonant mode, and can also generate a resonant current path that does not return from the ground point 113 to the ground and flows to the second end 114 to stimulate the first radiator 110 to generate the third resonant mode. In this case, most of the resonant current can return to the ground from the ground point 113, so that the first radiator 110 mainly generates the first resonant mode and secondarily generates the third resonant mode, and the radiation performance of the third resonant mode can be optimized.

[0130] The electronic device 10 of the embodiment of the present application includes a matching circuit 170, which can prevent the resonant current generated by the third resonant mode from returning to the ground. More resonant current can stimulate the first radiator 110 to generate the third resonant mode, thereby improving the radiation performance of the third resonant mode.

[0131] Among them, please refer to Fig.12 , Fig.12 The third structural diagram of the electronic device 10 provided in the embodiment of the present application. The electronic device 10 may further include a Sar sensor 180 and a filter circuit 190 .

[0132] The Sar sensor 180 can be electrically connected to the first radiator 110 directly or indirectly. The Sar sensor 180 can provide a detection signal, which can flow on the first radiator 110. When a human body approaches, the detection signal will produce a certain change. The Sar sensor 180 can detect the electromagnetic wave absorption ratio of the electronic device 10 through the detection signal.

[0133] One end of the filter circuit 190 may be electrically connected to the matching circuit 170 directly or indirectly, and the other end of the filter circuit 190 may be electrically connected to the ground point 113. The filter circuit 190 may be electrically connected between the matching circuit 170 and the ground point 113. The filter circuit 190 may prevent the detection signal from returning to the ground, so that the Sar sensor 180 can detect the Sar value of the electronic device 10 by detecting changes in the signal. It can be understood that the filter circuit 190 may not prevent the corresponding resonant current on the first radiator 110 from returning to the ground. For example, the filter circuit 190 may not prevent the resonant current generated by the first resonant mode on the first radiator 110 from returning to the ground, so that the performance of the first wireless signal supported by the first resonant mode is not affected.

[0134] It is understandable that the Sar sensor 180 refers to a sensor device that detects the specific absorption rate (Sar) of the human body. It is usually used to evaluate the potential impact of wireless devices (such as mobile phones, Wi-Fi routers, Bluetooth headsets, etc.) on the human body. In antenna design, the Sar indicator is often used to evaluate the impact of electromagnetic radiation generated by the electronic device 10 on the human body. The larger the Sar value, the greater the impact on the human body. In the related art, the distance between the electronic device 10 and the human body is often detected by the Sar sensor 180 and its sensing element, so as to reduce the power of the antenna when the electronic device 10 is close to the human body, thereby reducing the Sar value. However, through the Sar sensor 180 and its sensing element, on the one hand, the sensing element needs to be set, which increases the hardware cost of the electronic device 10; on the other hand, the sensing element often needs to be set in a specific position, which will not only occupy the space of the electronic device 10, but also affect the layout of other structures.

[0135] In the embodiment of the present application, the Sar sensor 180 uses the first radiator 110 as its sensing branch. The Sar sensor 180 and the first radiator 110 may be more sensitive to the approach of the user's head and hands. When the user is not close to the electronic device 10, the detection signal detected by the Sar sensor 180 may be within a preset range; when the user is close to the electronic device 10, the data of the detection signal detected by the Sar sensor 180 may change significantly; through this change, the Sar sensor 180 can detect whether the user is close, and can also determine whether the Sar value of the electronic device 10 exceeds the specified Sar value threshold, so that the electronic device 10 can adjust the transmission power of multiple radiators according to the Sar value.

[0136] It is understandable that the Sar sensor 180 of the embodiment of the present application can be a Sar value detection chip to detect the Sar value of the electronic device 10. The Sar sensor 180150 can be a component of the electronic device 10, or a component independent of the electronic device 10, which is not limited in the embodiment of the present application.

[0137] It is understandable that the filter circuit 190 of the embodiment of the present application can be a large capacitor device, for example but not limited to a large capacitor device having a capacitance value of 22pF or 100pF. Since the first radiator 110 returns to the ground through the large capacitor device, the large capacitor device can pass AC and block DC, and the large capacitor device can prevent the DC detection signal transmitted by the Sar sensor 180 from being grounded. If the user holds or approaches the first radiator 110, the capacitance value of the detection signal detected by the Sar sensor 180 will change greatly. According to the change, it can be judged whether the user is close and the range of the Sar value can be determined.

[0138] It should be noted that the filter circuit 190 of the embodiment of the present application may also have other structures, for example, it may also include components such as resistors, inductors, switches, etc. Any structure of the filter circuit 190 that can pass AC and block DC is within the protection scope of the embodiment of the present application.

[0139] In the electronic device 10 of the embodiment of the present application, the first radiator 110 is reused as the sensing branch of the Sar sensor 180, and the electronic device 10 does not need to set up additional sensing elements, nor does it need to reserve additional design space for sensing elements. The electronic device 10 of the embodiment of the present application has lower hardware cost, simpler structure, and occupies less space.

[0140] Based on the structure of the electronic device 10, please refer to Fig.13 , Fig.13 This is a fourth structural diagram of the electronic device 10 provided in the embodiment of the present application. The electronic device 10 further includes a display screen 200, a middle frame 300, a circuit board 400, a battery 500 and a rear housing 600.

[0141] The display screen 200 can be mounted on the middle frame 300 and connected to the rear case 600 through the middle frame 300 to form a display surface of the electronic device 10. The display screen 200 can be used to display information such as images and texts. The display screen 200 can be a display device of the type of an organic light-emitting diode (OLED) display device or an organic light-emitting diode (OLED) display.

[0142] The middle frame 300 may include a frame 310 and a middle plate 320, the frame 310 may form an outer frame 310 of the electronic device 10, and the middle plate 320 may provide support for the electronic components or electronic devices in the electronic device 10. The frame 310 and the middle plate 320 may form an accommodation space, and the electronic components and electronic devices in the electronic device 10 may be installed and fixed in the accommodation space.

[0143] The circuit board 400 may be mounted on the middle frame 300. The circuit board 400 may be a mainboard of the electronic device 10. Among them, one, two or more electronic devices such as a microphone, a speaker, a receiver, an earphone interface, a universal serial bus interface (USB interface), a camera assembly, a distance sensor, an environmental sensor, a gyroscope, and a processor may be integrated on the circuit board 400. Among them, 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.

[0144] The battery 500 may be mounted on the middle frame 300. 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. A power management circuit may be provided 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.

[0145] The rear shell 600 may be connected to 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, so as to protect the electronic devices and functional components of the electronic device 10.

[0146] It can be understood that the ground plane 150 of the embodiment of the present application can be formed on the rear shell 600, the circuit board 400 or the middle plate 320. For example, a conductor area with zero electric potential can be set on the rear shell 600, the circuit board 400 or the middle plate 320, and the ground plane 150 can be set on the conductor area.

[0147] It can be understood that one or more of the signal source 140, the adjustment module 160, the matching circuit 170, and the filter circuit 190 of the embodiment of the present application can be, but is not limited to, arranged on the circuit board 400; of course, one or more of the above components can also be arranged on the small board of the electronic device 10, and the embodiment of the present application does not limit the specific setting positions of the three structures.

[0148] It can be understood that when the frame 310 of the middle frame 300 is a conductor structure, the first radiator 110, the second radiator 120, and the third radiator 130 can be formed on the frame 310. Fig.13As shown, a plurality of gaps may be provided on the frame 310 to form a first metal branch 311, a second metal branch 312 and a third metal branch 313 on the frame 310, the first radiator 110 may include the first metal branch 311, the second radiator 120 may include the second metal branch 312, and the third radiator 130 may include the third metal branch 313. Among them, a non-conductive material similar in color to the rear shell 600 may be filled in the plurality of gaps to improve the structural strength of the frame 310.

[0149] It should be noted that the first radiator 110, the second radiator 120, and the third radiator 130 may also be arranged in other spaces of the electronic device 10, for example, but not limited to, the three radiators may be formed on the circuit board 400 by printing, spraying, etc. The embodiment of the present application does not limit the specific formation method of the three radiators.

[0150] It should be noted that the above is only an exemplary description of the electronic device 10 in the embodiment of the present application. The electronic device 10 may also include a camera module, an acoustic-to-electric conversion module, etc. The embodiment of the present application does not limit the specific structure of the electronic device 10.

[0151] In the description of this application, it should be understood that terms such as "first" and "second" 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.

[0152] The electronic device provided by the embodiment of the present application is described in detail above. The principle and implementation method of the present application are described in detail using specific examples herein, and the description of the above embodiments is only used to help understand 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: A first radiator, comprising a first end, a feeding point, a grounding point and a second end which are arranged in sequence, wherein the grounding point is located in the middle of the first radiator; A signal source, electrically connected to the feeding point; A first regulating circuit, electrically connected between the signal source and the feeding point; A second radiator is located at a side of the first end away from the second end, the second radiator comprises a first free end and a first grounding end, the first free end is spaced apart from the first end, and the first grounding end is grounded; a second regulating circuit, wherein one end of the second regulating circuit is electrically connected between the first free end and the first ground end, and the other end of the second regulating circuit is grounded; a third radiator, located at a side of the second end away from the first end, the third radiator comprising a second free end and a second ground end, the second free end is spaced apart from the second end, and the second ground end is grounded; A third regulating circuit, one end of the third regulating circuit is electrically connected between the second free end and the second ground end, and the other end is grounded; wherein, The signal source is used to stimulate the first radiator to support switching of the first wireless signal of different sub-bands under the action of the first adjustment circuit, and when the first wireless signal is switched to a different sub-band, stimulate the second radiator to support the second wireless signal through the adjustment action of the second adjustment circuit, and stimulate at least one of the first radiator and the third radiator to support the third wireless signal through the adjustment action of the third adjustment circuit.

2. The electronic device according to claim 1, characterized in that: The signal source is used to excite the second radiator to generate a second resonance mode and support the second wireless signal. The second resonance mode forms a second resonance current on the second radiator that flows from the first free end to the first ground end.

3. The electronic device according to claim 1, characterized in that: The signal source is used to excite the radiation section between the first end and the grounding point to generate a first resonance mode and support the reception and transmission of the first wireless signal. The first resonance mode forms a first resonance current on the first radiator that flows from the first end to the grounding point.

4. The electronic device according to claim 3, characterized in that: The signal source is used to excite the radiation section between the feeding point and the second end to generate the third resonance mode and support the transmission and reception of the third wireless signal. The third resonance mode forms a third resonance current on the first radiator that flows from the feeding point to the second end.

5. The electronic device according to claim 4, characterized in that: The signal source is further used to excite the third radiator to generate a fourth resonance mode as an auxiliary resonance mode, and the fourth resonance mode is used to support the transmission and reception of the third wireless signal together with the third resonance mode as the main resonance mode.

6. The electronic device according to claim 5, characterized in that: The fourth resonance mode is used to enhance the antenna efficiency when the first resonance mode supports the first wireless signal, and / or the fourth resonance mode is used to enhance the antenna efficiency when the third resonance mode supports the third wireless signal.

7. The electronic device according to claim 4, characterized in that: The electronic device further comprises: A matching circuit, one end of which is electrically connected to the grounding point and the other end of which is grounded, and the matching circuit is used to allow the first resonant current to return to the ground and to prevent the third resonant current from returning to the ground.

8. The electronic device according to claim 7, characterized in that: The electronic device further comprises: A Sar sensor, electrically connected to the first radiator, the Sar sensor being used to detect the electromagnetic wave absorption ratio of the electronic device through a detection signal; and A filter circuit is electrically connected between the matching circuit and the grounding point, and the filter circuit is used to prevent the detection signal from returning to the ground.

9. The electronic device according to any one of claims 1 to 8, characterized in that: The first adjustment circuit includes multiple first adjustment branches with different impedance values. When the first adjustment circuit switches between the multiple first adjustment branches, the signal source is used to excite the first radiator to switch between the B1 sub-band, B3 sub-band, B40 sub-band and B41 sub-band signals of the first wireless signal.

10. The electronic device according to any one of claims 1 to 8, characterized in that: The signal source is used to stimulate the first radiator to switch between different sub-bands of the first wireless signal in the medium and high frequency bands, and simultaneously stimulate the second radiator to support the second wireless signal in the 2.4G wireless fidelity band, and stimulate the first radiator to support the third wireless signal in the N78 band.

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