electronic devices

Abstract

An electronic device of this application comprises a third radiator, a first radiator, and a second radiator arranged sequentially at intervals, with the ends of the third and second radiators furthest from the first radiator grounded. A first adjustment circuit is electrically connected between a signal source and the feed point of the first radiator, a second adjustment circuit is electrically connected to the second radiator and grounded, and a third adjustment circuit is electrically connected to the third radiator and grounded. Under the action of the first adjustment circuit, the signal source excites the first radiator to support the switching of a first wireless signal in different sub-frequency bands. When the first wireless signal switches to a different sub-frequency band, the second adjustment circuit excites the second radiator to support a second wireless signal, and the third adjustment circuit excites at least one of the first and third radiators to support a third wireless signal. Based on this, the electronic device of this application can achieve the constant presence of the second and third wireless signals, thereby improving radiation performance.

Description

Technical Field

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

[0002] With the development of communication technology, electronic devices such as smartphones are able to perform more and more functions, the communication modes of electronic devices are becoming 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 smaller and thinner, and the internal space of electronic devices is also getting smaller and smaller, which makes it difficult to reasonably set up the antenna of electronic devices. Summary of the Invention

[0004] This application provides an electronic device that can be miniaturized.

[0005] This application provides an antenna device, including:

[0006] The first radiator includes a first end, a feed point, a grounding point, and a second end arranged in sequence, wherein the grounding point is located in the middle of the first radiator;

[0007] The signal source is electrically connected to the feed point;

[0008] The first adjustment circuit is electrically connected between the signal source and the feed point;

[0009] The second radiator is located on the side of the first end away from the second end. The second radiator includes a first free end and a first ground end. The first free end is spaced apart from the first end, and the first ground end is grounded.

[0010] The second adjustment circuit has one end electrically connected between the first free end and the first ground end, and the other end grounded.

[0011] A third radiator is located on the side of the second end away from the first end. The third radiator includes a second free end and a second grounded end. The second free end is spaced apart from the second end, and the second grounded end is grounded.

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

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

[0014] The electronic device of this application has a first radiator disposed between a second radiator and a third radiator. The first radiator can be capacitively coupled with the second and third radiators. Under the action of a first adjustment circuit, the signal source can excite the first radiator to support the switching of a first wireless signal in different sub-frequency bands. When the first wireless signal is switched to a different sub-frequency band, the second radiator is excited to support a second wireless signal through the adjustment action of the second adjustment circuit. Furthermore, at least one of the first radiator and the third radiator is excited to support a third wireless signal through the adjustment action of the third adjustment circuit. Based on this, on the one hand, electronic devices can support wireless signals of different frequency bands, which can broaden the bandwidth of electronic devices and improve their adaptability; on the other hand, the co-feeding configuration of the first radiator, the second radiator and the third radiator can reduce the number of feed devices, save the cost of electronic devices, simplify the internal space design of electronic devices, and realize the miniaturization design of electronic devices; furthermore, when electronic devices switch between the first wireless signal in different sub-frequency bands, electronic devices can achieve the coexistence of the first wireless signal with the second and third wireless signals, and the second and third wireless signals can be stationary, which can ensure that the first wireless signal covers a wide frequency range, and also ensure the radiation performance of the second and third wireless signals. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of a first structure of an electronic device provided in an embodiment of this application.

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

[0018] Figure 3 for Figure 1 The diagram shows the second type of current in the electronic device.

[0019] Figure 4 for Figure 1 The diagram shows a third type of current in the electronic device.

[0020] Figure 5 for Figure 1 The diagram shows the fourth type of current in the electronic device.

[0021] Figure 6 for Figure 1 The diagram shows a schematic of an S-parameter curve for an electronic device.

[0022] Figure 7 This is a schematic diagram of a second structure of an electronic device provided in an embodiment of this application.

[0023] Figure 8 for Figure 7 The diagram shows the first type of electrical connection for the adjustment module.

[0024] Figure 9 for Figure 7 The diagram shows a schematic of an S-parameter curve for an electronic device.

[0025] Figure 10 for Figure 7 The diagram shows the second type of electrical connection for the adjustment module.

[0026] Figure 11 for Figure 10 The diagram shows a logic control diagram for an electronic device.

[0027] Figure 12 This is a schematic diagram of a third structure of an electronic device provided in an embodiment of this application.

[0028] Figure 13 This is a schematic diagram of a fourth structure of an electronic device provided in an embodiment of this application. Detailed Implementation

[0029] The following will refer to the embodiments of this application. Figures 1 to 13 The technical solutions in the embodiments of this application are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0030] This application provides an electronic device 10, which can be a smartphone, tablet computer, or other device, as well as a gaming device, augmented reality (AR) device, automotive device, data storage device, audio playback device, video playback device, laptop computer, desktop computing device, etc. Please refer to... Figure 1 , Figure 1 This is a schematic diagram of a first structure of an electronic device 10 provided in an embodiment of this application. 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 feed point 112, a ground point 113, and a second end 114 arranged sequentially. The first end 111 and the second end 114 may be the two ends of the first radiator 110. The ground point 113 may be located in the middle of the first radiator 110 and grounded. The feed point 112 may be located between the first end 111 and the ground point 113. The second radiator 120 is located on the 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 ground end 122. The first free end 121 is spaced apart from the first end 111 of the first radiator 110 to form a first coupling gap S1. The first ground end 122 may extend in a direction away from the first radiator 110 and be grounded. The third radiator 130 is located on the 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 to form 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 feed 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 resonant modes.

[0032] The electronic device 10 may further include a ground plane 150. The grounding point 113 of the first radiator 110, the first grounding terminal 122 of the second radiator 120, and the second grounding 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 zero potential. The ground plane 150 may be formed through conductors, printed circuits, or metal printed layers in the electronic device 10; the ground plane 150 may be formed on the motherboard, small board, or other carrier board of the electronic device 10; or, the ground plane 150 may also be formed on the frame of the electronic device 10. This application embodiment does not limit the specific location of the ground plane 150.

[0033] The first radiator 110, the second radiator 120, and the third radiator 130 are conductive structures capable of supporting wireless signal transmission and reception. For example, under the excitation 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, 3rd Generation (3G), 4th Generation (4G), 5th Generation (5G), Near Field Communication (NFC) signals, Bluetooth (BT) signals, Ultra Wideband (UWB) signals, etc. This application does not limit this aspect.

[0034] It is understood that at least one of the first radiator 110, the second radiator 120, and the third radiator 130 may be, but is not limited to, a metal dendrite radiator, a printed circuit board radiator, or a silver paste-coated radiator. Furthermore, one or more of the first radiator 110, the second radiator 120, and the third radiator 130 may be, but is not limited to, an elongated or bent structure. This application does not limit the specific formation method or shape of the three radiators in its embodiments.

[0035] It is understood that the grounding point 113 of the first radiator 110 is located in the middle of the first radiator 110, meaning that the distance between the area where the grounding point 113 is located 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 first radiator 110 (inclusive). Furthermore, the feed point 112 of the first radiator 110 can be located between the first end 111 and the grounding point 113, with the feed point 112 of the first radiator 110 being closer to the first end 111 and farther from the second end 114. The first radiator 110 can be formed in the form of a T-shaped antenna.

[0036] It is 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 positioned opposite to the first end 111 of the first radiator 110, forming a port-to-port antenna pair. The first radiator 110 and the second radiator 120 can be capacitively coupled, 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 positioned opposite to the second end 114 of the first radiator 110, forming a port-to-port antenna pair. The first radiator 110 and the third radiator 130 can be capacitively coupled, 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 refers to the ability of a signal on one radiator to be transmitted to the other radiator through an electric field generated between two radiators, so that electrical signals can be conducted even when the two radiators are not in direct contact or directly connected.

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

[0038] It is understandable that when the signal source 140 provides an excitation signal, the excitation signal can be transmitted to the first radiator 110 through the feed 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 excites at least the first radiator 110, the second radiator 120 and the third radiator 130 to generate three resonant modes, and the electronic device 10 can support more wireless signals.

[0039] In the electronic device 10 of this application embodiment, a first radiator 110 is disposed between a second radiator 120 and a third radiator 130 and can be capacitively coupled with the second radiator 120 and the third radiator 130. A signal source 140 can excite the first radiator 110, the second radiator 120 and the third radiator 130 to generate at least three resonant modes. On the one hand, the electronic device 10 can support wireless signals of different frequency bands, which can broaden the bandwidth of the electronic device 10 and improve the adaptability of the electronic device 10. On the other hand, the co-feeding arrangement of the first radiator 110, the second radiator 120 and the third radiator 130 can reduce the number of feed devices, 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 a first resonant mode, a second resonant mode, a third resonant mode, and a fourth resonant mode. For example, please refer to... Figures 2 to 6 , Figure 2 for Figure 1 The diagram shows the first type of current for the electronic device 10. Figure 3 for Figure 1 The second current schematic diagram of the electronic device 10 shown is as follows. Figure 4 for Figure 1 The schematic diagram of the third current of the electronic device 10 shown is as follows. Figure 5 for Figure 1 The diagram shows the fourth type of current in the electronic device 10. Figure 6 for Figure 1 A schematic diagram of an S-parameter curve of the electronic device 10 shown.

[0041] like Figure 2 As shown, the signal source 140 can excite the radiating segment between the first end 111 and the ground point 113 of the first radiator 110 to generate a first resonant mode. This first resonant mode can generate a first resonant current I1 on the first radiator 110. The first resonant current I1 can flow along the direction from the first end 111 to the ground point 113 and can return to ground from the ground point 113. The first resonant mode can excite the first radiator 110 to support the transmission and reception of a first wireless signal. For example, Figure 5 Curve S1 represents the S-parameter curve of electronic device 10 when signal source 140 is operating. Region A of curve S1 indicates that signal source 140 can generate a first resonant mode, and this first resonant mode can support wireless signals in the B3 (1710MHz-1880MHz) or N3 (1710MHz-1880MHz) frequency bands. It can be understood that the first resonant mode generated by the first radiator 110 can be the main radiation mode of electronic device 10, and this first resonant mode can, but is not limited to, support wireless signals in the mid-to-high frequency bands.

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

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

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

[0045] It is understood that the second resonant mode can be mainly generated by the excitation of the second radiator 120, and the fourth resonant mode can be mainly generated by the excitation of the third radiator 130. In this process, the contribution rate of the first radiator 110 to the second and fourth resonant modes can be ignored. The signal source 140 can mainly excite the second radiator 120 to generate the second resonant mode, and the signal source 140 can also mainly excite the third radiator 130 to generate the second resonant mode. Alternatively, it can be said that the second resonant mode is generated jointly by the second radiator 120 as the main radiating branch and the first radiator 110 as the auxiliary radiating branch, and the signal source 140 can excite both the second radiator 120 and the first radiator 110 to jointly generate the second resonant mode; similarly, the fourth resonant mode can be generated jointly by the third radiator 130 as the main radiating branch and the first radiator 110 as the auxiliary radiating branch, and the signal source 140 can excite both the third radiator 130 and the first radiator 110 to jointly generate the fourth resonant mode. The embodiments of this application do not limit the specific forms of the second and fourth resonant modes.

[0046] It is understood that the fourth resonant mode can enhance the antenna efficiency of the first resonant mode when supporting the first wireless signal. The fourth resonant mode and the first resonant mode can be two independent resonant modes. The frequency range of the fourth resonant mode can be spaced apart from the frequency range of the first resonant mode, and the frequency ranges of the two are within a small interval, so that the fourth resonant mode can enhance the antenna efficiency of the first resonant mode. For example, in the spectrum, the frequency range corresponding to the fourth resonant mode can be lower than the frequency range corresponding to the first resonant mode, and the frequency range interval between the two can be approximately in the range of 100MHz-300MHz. In this case, the fourth resonant mode can effectively enhance the antenna efficiency of the first resonant mode. Of course, the matching parameters of the electronic device 10 can also be adjusted so that the fourth resonant mode is independent of the first resonant mode and does not enhance the antenna efficiency of the first resonant mode when supporting the first wireless signal. In this case, the fourth resonant mode can further widen the bandwidth of the electronic device 10. This application does not limit the specific form of the fourth resonant mode and the first resonant mode.

[0047] It should be noted that the fourth resonant mode can also enhance the antenna efficiency when the third resonant mode supports a third wireless signal. This can be achieved by configuring parameters so that the frequency range of the fourth resonant mode is spaced apart from that of the third resonant mode, and the two frequency ranges are within a small interval, so that the fourth resonant mode can enhance the antenna efficiency of the third resonant mode. This application does not limit this aspect.

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

[0049] It is understood that at least one of the first, second, third, and fourth resonant modes can support wireless signals in a quarter-wavelength mode. Of course, at least one of the four resonant 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, and this application does not limit this.

[0050] Understandably, the signal source 140 can simultaneously excite the first radiator 110, the second radiator 120, and the third radiator 130 to generate a first resonant mode, a third resonant mode, a second resonant mode, and a fourth resonant mode. In this case, the excitation signal provided by the signal source 140 can generate different resonant current paths on the first radiator 110, the second radiator 120, and the third radiator 130, thereby enabling them to generate the first, second, third, and fourth resonant modes. 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 of the first, third, second, and fourth resonant modes. Furthermore, in addition to exciting the first radiator 110, the second radiator 120, and the third radiator 130 to generate the first resonant mode, the second resonant mode, the third resonant mode, and the fourth resonant mode, the signal source 140 can also excite the three radiators to generate other resonant modes. This application embodiment does not limit the specific resonant modes generated by the three radiators of the signal source 140.

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

[0052] Please refer to the following: Figure 7 , Figure 7 This is a second structural schematic diagram of the electronic device 10 provided in an embodiment of this application. The electronic device 10 may further include an adjustment module 160.

[0053] The adjustment module 160 can 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 can tune the frequency range of wireless signals supported by at least one resonant mode generated by the first radiator 110, the second radiator 120, and the third radiator 130. For example, the adjustment module 160 can tune the frequency range of wireless signals supported by at least one of the first resonant mode, the third resonant mode, the second resonant mode, and the fourth resonant mode.

[0054] It is understood 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 simultaneously, so that the adjustment module 160 can tune the frequency range of the wireless signals supported by the first to fourth resonant modes 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 signals supported by one or more resonant modes generated by the three radiators. This application embodiment does not limit the specific electrical connection form of the adjustment module 160.

[0055] It is understood 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 embodiments of this application do 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 relatively narrow. For example, when the first resonant mode supports mid-to-high frequency wireless signals, the electronic device 10 can cover the range of 1700MHz to 2000MHz, while the basic frequency range required for the currently used mid-to-high frequency band is 1700MHz to 2700MHz, thus requiring further improvement in the bandwidth performance of the electronic device 10.

[0057] The electronic device 10 in this application embodiment includes an adjustment module 160. The adjustment module 160 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 has better bandwidth performance.

[0058] In this regard, please combine Figure 7 Please refer to Figure 8 , Figure 8 for Figure 7 The diagram shows a first electrical connection of the adjustment module 160. 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 excite the first radiator 110 to support the switching of a first wireless signal to different sub-frequency bands. When the first wireless signal switches to a different sub-frequency band, the second radiator 120 is excited to support a second wireless signal at least through the adjustment action of the second adjustment circuit 162. At least one of the first radiator 110 and the third radiator 130 is excited to support a third wireless signal at least through the adjustment action of the third adjustment circuit 163.

[0059] It is understood that the first adjustment circuit 161 can be directly or indirectly electrically connected between the signal source 140 and the feed point 112 of the first radiator 110. The first adjustment circuit 161 can, but is not limited to, adjusting the frequency range of the resonant modes supported by the first radiator 110. For example, the first adjustment circuit 161 can, but is not limited to, adjusting the frequency range supported by the first resonant mode and the third resonant mode. Under the influence of the first adjustment circuit 161, the signal source 140 can excite the first radiator 110 to support the switching of the first wireless signal in different sub-bands.

[0060] It is 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 ground end 122 of the second radiator 120. For example, a first electrical connection point 123 can be provided on the second radiator 120, which can be located between the first free end 121 and the first ground 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, located in an area closer to the first free end 121 and relatively farther from the first ground 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. The second adjustment circuit 162 can, but is not limited to, adjust 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 excites 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 excite the second radiator 120 to maintain the state of supporting the second wireless signal, so as to avoid the second wireless signal supported by the second radiator 120 from having a frequency offset and affecting the radiation performance of the second wireless signal. The second wireless signal can coexist with the first wireless signal in a different sub-frequency band, and the second wireless signal can be permanently stationary.

[0061] It is 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, which 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 is understood that the second electrical connection point 133 can be, but is not limited to, located in an area closer to the second free end 131 and relatively farther from the second ground end 132. The other end of the third adjustment circuit 163 can be directly or indirectly electrically connected to the grounding plane 150 to achieve grounding. The third adjustment circuit 163 can, but is not limited to, adjusting the frequency range of the resonant mode supported by the third radiator 130. Since the third radiator 130 can be capacitively coupled to the first radiator 110, the third adjustment circuit 163 can also adjust the frequency range of the resonant mode supported by the first radiator 110. Therefore, the third adjustment circuit 163 can, but is not limited to, adjusting the frequency range supported by at least one of the third and fourth resonant modes. For example, even when the first wireless signal switches to a different sub-frequency band, under the combined 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 resonant mode supporting the third wireless signal, thereby avoiding frequency offset of the third wireless signal. The third wireless signal can coexist with the first wireless signal in different sub-frequency bands, and the third wireless signal can be permanently stationary.

[0062] It is understood that, under the regulation of the first regulation circuit 161 and the third regulation circuit 163, the signal source 140 can excite the first radiator 110 to support the transmission and reception of the third wireless signal (e.g., the first radiator 110 supports the transmission and reception of the third wireless signal in the third resonant mode), the signal source 140 can also excite the third radiator 130 to support the transmission and reception of the third wireless signal (e.g., the third radiator 130 supports the transmission and reception of the third wireless signal in the fourth resonant mode), and the signal source 140 can also excite the first radiator 110 and the third radiator 130 to jointly support the transmission and reception of the third wireless signal. This application embodiment does not limit this aspect.

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

[0064] It is understood that, under the action of at least one of the adjustment circuits 161, 162, and 163, one, two, or three of the first radiator 110, second radiator 120, and third radiator 130 can support at least one of the first, third, and second wireless signals. Furthermore, under the action of at least one adjustment circuit, at least one radiator can also support the third, second, or both wireless signals simultaneously, thereby enabling the constant presence of at least one of the third and second wireless signals.

[0065] The electronic device 10 of this application embodiment can support wireless signals of different frequency bands under the action of three radiators and three adjustment circuits, which can broaden the bandwidth of the electronic device 10 and improve its adaptability. On the other hand, the co-feeding arrangement of the first radiator 110, the second radiator 120 and the third radiator 130 can reduce the number of feed devices, 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. Furthermore, the electronic device 10 can realize the coexistence of the first wireless signal, the third wireless signal and the second wireless signal, and the third wireless signal and the second wireless signal can be stationary, which can ensure the radiation performance of the third wireless signal and the second wireless signal.

[0066] The signal source 140, under the action of the first adjustment circuit 161, can excite the first radiator 110 to support the switching of the first wireless signal in different sub-frequency bands; the signal source 140 can excite the first resonant mode generated in the radiating segment 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 resonant mode can form a first resonant current I1 flowing from the first end 111 to the ground point 113 on the first radiator 110.

[0067] It is understood that when the first wireless signal includes multiple sub-bands, the first adjustment circuit 161 may include multiple first adjustment branches with different impedance values. The first adjustment circuit 161 can switch between 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 switching of the first adjustment circuit 161 between multiple first adjustment circuits 161 can enable the first resonant mode to support the transmission and reception of the first wireless signal in different sub-bands, thereby widening the bandwidth of the wireless signal supported by the first resonant mode.

[0068] It is understood that the first wireless signal can be, but is not limited to, a mid-to-high frequency signal (Middle frequency band and High frequency band, abbreviated as 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-frequency bands of the first wireless signal supporting the MHB frequency 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-frequency band signal (1920MHz-2170MHz), the B3 sub-frequency band signal (1710MHz-1880MHz), the B40 sub-frequency band signal (2300MHz-2400MHz), and the B41 sub-frequency 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-frequency bands of other first wireless signals. This application embodiment does not limit this.

[0069] It should be noted that the signal source 140 can also excite at least one of other radiators, such as 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 in other resonant modes, and this application embodiment does not limit this.

[0070] When the first adjustment circuit 161 switches between multiple first adjustment branches to enable the first resonant mode to support the transmission and reception of first wireless signals in different sub-frequency bands, under the adjustment of the second adjustment circuit 162, the second radiator 120 can also constantly generate a second resonant mode and support the transmission and reception of the second wireless signal under the excitation of the signal source 140.

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

[0072] It is 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 multiple second adjustment branches according to the switching operation of the first adjustment circuit 161, so that when the first resonant mode supports the transmission and reception of the first wireless signal in different sub-bands, the second resonant mode still supports the transmission and reception of the second wireless signal in the same frequency band. Under the adjustment of the second adjustment circuit 162, the frequency band of the wireless signal supported by the second resonant mode does not change with the first resonant mode supporting different frequency bands of wireless signals.

[0073] It is understood 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. The signal source 140 is used to excite the first radiator 110 to switch between the first wireless signal at mid-to-high frequencies and simultaneously excite the second radiator to support a third wireless signal in the 2.4G Wi-Fi band.

[0074] It should be noted that the second wireless signal can also be a wireless signal in other frequency bands. The signal source 140 can also excite the second radiator to support the transmission and reception of the second wireless signal in other resonant modes, or the signal source 140 can 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 embodiments of this application do not limit the formation method or specific frequency band of the second wireless signal.

[0075] When the first adjustment circuit 161 switches between multiple first adjustment branches to enable the first resonant mode to support the transmission and reception of first wireless signals in different sub-frequency bands, the first radiator 110 can also constantly generate a third resonant mode and support the transmission and reception of third wireless signals under the excitation of the signal source 140 through the adjustment of the third adjustment circuit 163.

[0076] It is understood that the signal source 140 can excite the third resonant mode generated in the radiation segment between the feed 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 resonant mode can form a third resonant current I3 flowing in the direction from the feed point 114 to the second end 112 on the second radiator 120.

[0077] It is understood that the third wireless signal may differ from the first wireless signal. For example, the lowest frequency of the third wireless signal may be higher than the highest frequency of the first wireless signal. For instance, the third wireless signal may be, but is not limited to, an N78 band signal (3300MHz-3800MHz), and the signal source 140 is used to excite the first radiator 110 to switch between the first wireless signal at mid-to-high frequencies, and simultaneously excite the first radiator 110 to support the third wireless signal in the N78 band.

[0078] It should be noted that the third wireless signal can also be a wireless signal in other frequency bands. The signal source 140 can also excite the first radiator 110 to support the transmission and reception of the third wireless signal in other resonant modes, or the signal source 140 can 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 embodiments of this application do not limit the formation method or specific frequency band of the third wireless signal.

[0079] Under the regulation of the third adjustment circuit 163, the signal source 140 can also excite the third radiator 130 to generate a fourth resonant mode. This fourth resonant mode can serve as an auxiliary resonant mode, and together with the third resonant mode, which serves as the primary resonant mode, it can support the transmission and reception of the third wireless signal.

[0080] It is understood that the fourth resonant mode can also enhance the antenna efficiency when the first resonant mode generated by the first radiator 110 supports the first wireless signal (e.g., an MHB signal), or the fourth resonant mode can also enhance the antenna efficiency when the third resonant mode supports the third wireless signal (e.g., an N78 band signal).

[0081] It is understood that the fourth resonant mode can generate a fourth resonant current I4 flowing from the second ground terminal 132 to the second free terminal 131 on the third radiator 130. Of course, the third radiator 130 can also generate other resonant modes to support the antenna efficiency of the first resonant mode supporting the first wireless signal, and this application embodiment does not limit this.

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

[0083] It is understandable 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, in addition to changing the frequency bands of the wireless signals supported by the first and third resonant modes, the first adjustment circuit 161 may also change the frequency bands of the wireless signals supported by the second and fourth resonant modes. If it is necessary to keep a certain frequency band of the third resonant mode, a certain frequency band of the second resonant mode, and a certain frequency band of the fourth resonant mode constantly active, 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 bands of the third wireless signals supported by the third resonant mode and the second wireless signals supported by the second resonant mode do not change with the adjustment operation of the first adjustment circuit 161.

[0084] It is understandable that the electronic device 10 can independently control the second adjustment circuit 162 to switch between multiple second adjustment branches, so that when the first resonance supports the transmission and reception of first wireless signals in different sub-frequency bands, the second resonance mode supports the transmission and reception of second wireless signals in the same frequency band. In this case, the frequency bands of the wireless signals supported by the third resonance mode and the fourth resonance mode may be frequency offset. The electronic device 10 can also independently control the third adjustment circuit 163 to switch between multiple third adjustment branches, so that when the first resonance supports the transmission and reception of first wireless signals in different sub-frequency bands, the third resonance mode supports the transmission and reception of second wireless signals in the same frequency band. In this case, the frequency bands of the wireless signals supported by the second resonance mode and the fourth resonance mode may be frequency offset. 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 transmission and reception of first wireless signals in different sub-frequency bands, the third resonance mode supports the transmission and reception of third wireless signals in the same frequency band, and the second resonance mode supports the transmission and reception of second wireless signals in the same frequency band.

[0085] For example, signal source 140 can excite the radiating segment between the first end 111 and the ground point 113 of the first radiator 110 to generate a first resonant mode and support mid-to-high frequency wireless signal transmission and reception, excite the second radiator 120 to generate a second resonant mode and support 2.4G wireless fidelity signal transmission and reception, and excite the radiating segment between the feed point 112 and the second end 114 of the first radiator 110 to generate a third resonant mode and support N78 band wireless signal transmission and reception. First adjustment circuit 161 can switch between multiple first adjustment branches, so that the first resonant mode can support mid-to-high frequency wireless signal transmission and reception in different sub-bands (e.g., but not limited to B1 band, B3 band, B40 band, B41 band). Third adjustment circuit 163 can adaptively adjust according to the adjustment of first adjustment circuit 161, so that the third resonant mode can maintain the N78 band wireless signal constantly, and the fourth resonant mode can enhance the antenna efficiency when the first resonant 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 resonant mode can maintain a 2.4G Wi-Fi signal.

[0086] Please refer to the following: Figure 9 , Figure 9 for Figure 7 A schematic diagram of an S-parameter curve of the electronic device 10 shown. Figure 9 Curve S2 is the S-parameter curve of electronic device 10 when the first adjustment circuit 161 switches between multiple first adjustment branches to enable the first resonant mode to support wireless signals in the B1 frequency band; curve S3 is the S-parameter curve of electronic device 10 when the first adjustment circuit 161 switches between multiple first adjustment branches to enable the first resonant mode to support wireless signals in the B3 frequency band; curve S4 is the S-parameter curve of electronic device 10 when the first adjustment circuit 161 switches between multiple first adjustment branches to enable the first resonant mode to support wireless signals in the B40 frequency band; curve S5 is the S-parameter curve of electronic device 10 when the first adjustment circuit 161 switches between multiple first adjustment branches to enable the first resonant mode to support wireless signals in the B41 frequency band.

[0087] When the first adjustment circuit 161 adjusts the first resonant mode to support the main resonance in the mid-to-high frequency band, the third adjustment circuit 163 can adjust the frequency of the third resonant mode to keep the N78 frequency band signal constantly active. Figure 9 As can be seen from curves S2 and S3, when the first resonant mode supports wireless signals in the B1 or B3 bands, a third resonant mode can be generated before the 3.5G band to support the continuous presence of N78 band signals through the adjustment of the third adjustment circuit 163. Figure 9As can be seen from curves S4 and S5, when the first resonant mode supports wireless signals in the B40 or B41 bands, the third resonant mode can be generated in the frequency range after the 3.5G band through the adjustment of the third adjustment circuit 163 to support the permanent presence of the N78 band signal.

[0088] Similarly, when the first adjustment circuit 161 adjusts the first resonant mode to support the main resonance in the mid-to-high frequency band, the second adjustment circuit 162 can adjust the frequency of the second resonant mode to keep the 2.4G Wi-Fi signal constantly active. Figure 9 As can be seen from curves S2 and S3, when the first resonant mode supports wireless signals in the B1 or B3 band, a second resonant mode can be generated in the 2.4G-2.5G frequency range through the adjustment of the second adjustment circuit 162, thereby enabling a constant 2.4G Wi-Fi signal. Figure 9 As can be seen from curves S4 and S5, when the first resonant mode supports wireless signals in the B40 or B41 band, a wide resonance can be generated in the 2.3G-2.5G and 2.4G-2.7G frequency range through the adjustment of the second adjustment circuit 162 to take into account both the B40 or B41 band and the 2.4G Wi-Fi band, so as to achieve the constant presence of the 2.4G Wi-Fi signal.

[0089] The adjustment module 160 of this application embodiment includes a first adjustment circuit 161, a second adjustment circuit 162, and a third adjustment circuit 163. The first adjustment circuit 161 can widen the bandwidth of the first wireless signal supported by the first resonance mode to improve the adaptability of the electronic device 10. Furthermore, through the cooperation of the three adjustment circuits, the frequency bands of the third wireless signal and the second wireless signal supported by the third resonance mode and the second resonance mode can be kept constant without being adjusted by the first resonance mode. This can ensure the stability of the communication of the electronic device 10.

[0090] Please refer to the following: Figure 10 , Figure 10 for Figure 7 The diagram shows a second electrical connection of the regulating module 160. The first regulating circuit 161 may include 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.

[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 can be multiple first regulating branches with different impedance values ​​in 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. The first input terminal a1 can be directly or indirectly connected to the feed point 112 of the first radiator 110. One end of the first inductive load branch 1612 is directly or indirectly 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 grounding plane 150 to achieve grounding. One end of the second inductive load branch 1613 is directly or indirectly 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 grounding plane 150 to achieve grounding. One end of the third inductive load branch 1614 is directly or indirectly connected to the third output terminal b3 of the first switching 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 connected to the fourth output terminal b4 of the first switching switch 1611, and the other end of the first capacitive load branch 1615 is directly or indirectly connected to the signal source 140.

[0092] It is understood that an inductive load branch refers to a circuit or structure that allows current to flow, but the current lags behind the voltage. Inductive load branches primarily use inductive reactance components (such as inductors) as the main load. In AC circuits, when current flows through an inductor, an induced electromotive force is generated within the inductor, leading to the storage and release of energy in the circuit; hence, 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, branches formed by multiple inductors and capacitors connected in series or parallel. Any structure that allows a branch to function as 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 this application embodiment.

[0093] It is understood that a capacitive load branch refers to a circuit or structure that can prevent current from flowing through, but where the current leads the voltage. A capacitive load branch primarily uses capacitors as the main load. In an AC circuit, when voltage is applied to a capacitor, the capacitor accumulates charge, forming an electric field, and releases charge when the voltage changes; hence, it is called a capacitive load. A typical capacitive load includes a capacitor. 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; any structure that makes the branch a capacitive load can be the first capacitive load branch 1615 of this application embodiment.

[0094] Understandably, the first switching switch 1611 can connect the first input terminal a1 to the first output terminal b1, allowing the first radiator 110 to return to ground via the first inductive load branch 1612; the first switching switch 1611 can also connect the first input terminal a1 to the second output terminal b2, allowing the first radiator 110 to return to ground via the second inductive load branch 1613; the first switching switch 1611 can also connect the first input terminal a1 to the third output terminal b3, allowing the first radiator 110 to return to ground via the third inductive load branch 1614; the first switching switch 1611 can also connect the first input terminal a1 to the fourth output terminal b4, allowing the first radiator 110 to return to ground via the first capacitive load branch 1615. Of course, the first switching switch 1611 can also connect the first input terminal a1 to multiple (two or more) output terminals, allowing the first radiator 110 to return to ground via multiple branches.

[0095] It is understood that the first switching switch 1611 can be a single-pole multi-throw switch; or, the first switching switch 1611 can include multiple single-pole single-throw switches; or, the first switching switch 1611 can also be a multi-pole multi-throw switch. This application embodiment does not limit the specific structure of the first switching switch 1611.

[0096] Understandably, 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 give the first radiator 110 different electrical lengths. When the first regulating circuit 161 switches between different inductive load branches and the first capacitive load branch 1615, it can make the first resonance support the first wireless signal in 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, such as Figure 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 can be directly or indirectly connected to the feed point 112 of the first radiator 110, and the other end of the second capacitive load branch 1616 can be directly or indirectly connected to the signal source 140. One end of the fourth inductive load branch 1617 can be directly or indirectly connected to the feed point 112 of the first radiator 110, and the other end of the fourth inductive load branch 1617 can be electrically connected to the ground plane 150 to achieve grounding.

[0099] It is understood that the electronic device 10 may also 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 can jointly adjust the impedance matching when the signal source 140 provides an excitation signal. Impedance refers to the resistance to the excitation current in a circuit. When the internal resistance of the signal source 140 is equal in magnitude and phase to the characteristic impedance of the transmission line, or when the characteristic impedance of the transmission line is equal in magnitude and phase to the impedance of the connected load, the input or output end of the transmission line is said to be in an impedance-matched state, or simply impedance matching. The matching network can ensure that the excitation signal provided by the signal source 140 is in an impedance-matched state, thereby improving the radio frequency performance of the electronic device 10.

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

[0101] The first adjustment circuit 161 in this embodiment 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. When the first switching switch 1611 switches between different load branches, it can expand the bandwidth of the first wireless signal supported by the first resonant mode. 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 into the first adjustment circuit 161 can simplify the circuit structure and reduce production costs.

[0102] Please refer to this again. Figure 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 can be multiple second regulating branches with different impedances in 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. 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 can 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 grounding plane 150 to achieve grounding. One end of the sixth inductive load branch 1623 is directly or indirectly 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 grounding plane 150 to achieve grounding. One end of each zero-ohm load branch 1624 is directly or indirectly 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 grounding plane 150 to achieve grounding. The number of 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 connected to the second radiator 120, and the other end of the seventh inductive load branch 1625 is electrically connected to the grounding plane 150 to achieve grounding.

[0104] It is understandable that the so-called zero-ohm load branch 1624 refers to a branch that returns to ground through a component with zero resistance, or a branch where one end is connected to the second radiator 120 and the other end returns directly to ground, so that there are no other impedance components between the second radiator 120 and the ground plane 150. For example, Figure 10 As shown, the second adjustment circuit 162 may include, but is not limited to, two zero-ohm load branches 1624.

[0105] Understandably, the second switch 1621 can connect the second input terminal a2 to the fifth output terminal b5, allowing the second radiator 120 to return to ground via the fifth inductive load branch 1622; the second switch 1621 can also connect the second input terminal a2 to the sixth output terminal b6, allowing the second radiator 120 to return to ground via the sixth inductive load branch 1623; the second switch 1621 can also connect the second input terminal a2 to the seventh output terminal b7, allowing the second radiator 120 to return to ground via at least one zero-ohm load branch 1624. The seventh inductive load branch 1625 can remain grounded without being switched by the second switch 1621.

[0106] It is understood that the second switching switch 1621 can be a single-pole multi-throw switch; or, the second switching switch 1621 can include multiple single-pole single-throw switches; or, the second switching switch 1621 can also be a multi-pole multi-throw switch. This application embodiment does not limit the specific structure of the second switching switch 1621.

[0107] Understandably, 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 result in different electrical lengths for the second radiator 120. When the second adjustment circuit 162 switches between different inductive load branches, it can enable the second resonance to support second wireless signals in different sub-frequency bands. Furthermore, 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 in different sub-frequency bands, the second resonance mode supports the transmission and reception of second wireless signals in the same frequency band.

[0108] For example, the fifth inductive load branch 1622 may include a fifth inductor L5, the inductance value of which may be, but is not limited to, 20N; the sixth inductive load branch 1623 may include a sixth inductor L6, the inductance value of which may be, but is not limited to, 1.5N; and the seventh inductive load branch 1625 may include a seventh inductor L7, the inductance value of which may be, but is not limited to, 8.2N. This application does not limit the specific structure of the three inductive load branches in its embodiments.

[0109] The second adjustment circuit 162 in this embodiment 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 both expand the bandwidth of the second resonant mode and ensure that the signal of a certain frequency band supported by the second resonant mode is always present, so that the electronic device 10 can adapt to different application scenarios.

[0110] Please refer to this again. Figure 10 The third adjustment 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 can be multiple third regulating branches with different impedance values ​​for the third regulating circuit 163. The third switching switch 1631 can 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. The third input terminal a3 can 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 can 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 switching switch 1631, and the other end of the eighth inductive load branch 1632 is electrically connected to the grounding plane 150 to achieve grounding. One end of the ninth inductive load branch 1633 can be directly or indirectly 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 grounding plane 150 to achieve grounding. One end of the tenth inductive load branch 1634 can be directly or indirectly 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 grounding plane 150 to achieve grounding. One end of the eleventh inductive load branch 1635 can be directly or indirectly 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 grounding plane 150 to achieve grounding.

[0112] Understandably, the third switch 1631 can connect the third input terminal a3 to the eighth output terminal b8, so that the third radiator 130 can return to ground through the eighth inductive load branch 1632; the third switch 1631 can also connect the third input terminal a3 to the ninth output terminal b9, so that the third radiator 130 can return to ground through the ninth inductive load branch 1633; the third switch 1631 can also connect the third input terminal a3 to the tenth output terminal b10, so that the third radiator 130 can return to ground through the tenth inductive load branch 1634; the third switch 1631 can also connect the third input terminal a3 to 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 understood that the third switching switch 1631 can be a single-pole multi-throw switch; or, the third switching switch 1631 can include multiple single-pole single-throw switches; or, the third switching switch 1631 can also be a multi-pole multi-throw switch. This application embodiment does not limit the specific structure of the third switching switch 1631.

[0114] Understandably, 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 result in different electrical lengths for the second radiator. When the third adjustment circuit 163 switches between different inductive load branches, it can enable the third resonance to support second wireless signals in different sub-frequency bands. Furthermore, 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 first wireless signals in different sub-frequency bands, the third resonance mode supports the transmission and reception of third wireless signals in the same frequency band.

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

[0116] The third adjustment circuit 163 in this embodiment 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 both expand the bandwidth of the third resonant mode and ensure that the signal of a certain frequency band supported by the third resonant mode is always present, so that the electronic device 10 can adapt to different application scenarios.

[0117] The electronic device 10 can control the state of the first adjustment circuit 161, the second adjustment circuit 162, and the third adjustment circuit 163, so that the electronic device 10 can achieve multi-mode switching of mid-to-high frequency bands and maintain the Wi-Fi signal and N78 band signal during the switching process.

[0118] For example, please refer to Figure 10 And refer to Figure 11 , Figure 11 for Figure 10The illustrated electronic device 10 has a logic control diagram. 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 sequentially; the inductance value of the fifth inductive load branch 1622 is greater than the inductance value of the sixth inductive load branch 1623; and 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 sequentially.

[0119] like Figure 11 As shown, when the first resonant mode supports the transmission and reception of a first wireless signal in a first sub-band, such as the B1 band, the first switch 1611 can connect the first input terminal a1 to the first output terminal b1, and the first inductive load branch 1612 can be grounded; the second switch 1621 connects the second input terminal a2 to the fifth output terminal b5, and the fifth inductive load branch 1622 can be grounded; the third switch 1631 connects the third input terminal a3 to the ninth output terminal b9, and the ninth inductive load branch 1633 can be grounded. At this time, the electronic device 10 can simultaneously support B1 band signals, Wi-Fi signals, and N78 band signals.

[0120] When the first resonant mode supports the transmission and reception of the first wireless signal in the second sub-band, such as the B3 band, the first switch 1611 disconnects the first input terminal a1 from all output terminals. The first adjustment 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 switch 1621 disconnects the second input terminal a2 from all output terminals, and the second adjustment circuit 162 can return to ground through the seventh inductive load branch 1625. The third switch 1631 connects the third input terminal a3 to the eighth output terminal b8, so that the eighth inductive load branch 1632 can return to ground. 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 in the third sub-band, such as the B40 band, the first switch 1611 connects the first input terminal a1 to the second output terminal b2, and the second inductive load branch 1613 can be grounded. The second switch 1621 connects the second input terminal a2 to the sixth output terminal b6, and the sixth inductive load branch 1623 can be grounded. The third switch 1631 connects the third input terminal a3 to 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 in the fourth sub-band, such as the B41 band, the first switch 1611 connects the first input terminal a1 with 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 switch 1621 connects the second input terminal a2 with the seventh output terminal b7, and at least one zero-ohm load branch 1624 can be grounded. The third switch 1631 connects the third input terminal a3 with 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 adjustment circuit 161 to the third adjustment circuit 163. The three adjustment circuits may also include other structures, which are not limited in this application embodiment. Furthermore, 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. The specific control methods of the three switching switches are not limited in this application embodiment.

[0124] The electronic device 10 in this embodiment of the application can switch between mid-to-high frequency modes and maintain Wi-Fi and N78 band signals by controlling different adjustment branches of three adjustment circuits. The three adjustment circuits have simple structures and control methods. Furthermore, under the action of the three adjustment circuits, the mid-to-high frequency band covered by the electronic device 10 can range from 1.7 GHz to 2.7 GHz, significantly higher than the 1.7 GHz-2 GHz range covered by the electronic device 10 without adjustment circuits. The electronic device 10 in this embodiment of the application can achieve a wideband MHB signal + Wi-Fi signal + N78 signal three-radiator co-feed scheme under the action of the three adjustment circuits.

[0125] Please refer to this again. Figures 1 to 10 The electronic device 10 may also include a matching circuit 170.

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

[0127] It is understandable that, since the first resonant mode is generated by the excitation of the radiation segment between the first end 111 of the first radiator 110 and the ground point 113, and the third resonant mode is generated by the excitation of the radiation segment between the feed point 112 of the first radiator 110 and the second end 114, the resonant current excited by the third resonant mode can pass through the ground point 113. When the electronic device 10 is equipped 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 ground from the ground point 113 and affecting the radiation performance of the third resonant mode.

[0128] It is understood that the matching circuit 170 may include, but is not limited to, small inductive components. For example, the matching circuit 170 may include a twelfth inductor L2 with 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 ground and prevents the resonant current generated by the third resonant mode from returning to ground is within the protection scope of the embodiments of this application. The embodiments of this application do not limit the specific structure of the matching circuit 170.

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

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

[0131] Please refer to the following: Figure 12 , Figure 12 This is a schematic diagram of a third structure of the electronic device 10 provided in an embodiment of this application. The electronic device 10 may also include a Sar sensor 180 and a filter circuit 190.

[0132] The Sar sensor 180 can be directly or indirectly electrically connected to the first radiator 110. The Sar sensor 180 can provide a detection signal that can flow on the first radiator 110. When a human body approaches, the detection signal will 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 can be directly or indirectly electrically connected to the matching circuit 170, and the other end of the filter circuit 190 can be electrically connected to the ground point 113. The filter circuit 190 can be electrically connected between the matching circuit 170 and the ground point 113. The filter circuit 190 can prevent the detection signal from returning to ground, so that the Sar sensor 180 can detect the Sar value of the electronic device 10 by detecting changes in the detection signal. It is understood that the filter circuit 190 may not prevent the corresponding resonant current on the first radiator 110 from returning to 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 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 electromagnetic waves absorbed by the human body. It is commonly used to assess 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 index is often used to evaluate the impact of electromagnetic radiation generated by the electronic device 10 on the human body. The higher the Sar value, the greater the impact on the human body. In related technologies, the Sar sensor 180 and its sensing element are often used to detect the distance between the electronic device 10 and the human body, so as to reduce the antenna power when the electronic device 10 is close to the human body, thereby reducing the Sar value. However, using the Sar sensor 180 and its sensing element, on the one hand, requires setting up the sensing element, increasing the hardware cost of the electronic device 10; on the other hand, the sensing element often needs to be placed in a specific location, which occupies space in the electronic device 10 and also affects the layout of other structures.

[0135] In this embodiment, the Sar sensor 180 uses the first radiator 110 as its sensing segment. The Sar sensor 180 and the first radiator 110 are sensitive to the proximity of the user's head and hand. When the user is not close to the electronic device 10, the detection signal detected by the Sar sensor 180 is 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 can change significantly. Through this change, the Sar sensor 180 can detect whether the user is close and 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 emission power of multiple radiators according to the Sar value.

[0136] It is understood that the Sar sensor 180 in this application embodiment 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, and this application embodiment does not limit this.

[0137] It is understood that the filter circuit 190 in this embodiment can be a large capacitor, for example, but not limited to, a capacitor with a capacitance of 22pF or 100pF. Since the first radiator 110 returns to ground through the large capacitor, the large capacitor can pass AC and block DC. The large capacitor 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 significantly. Based on this change, it can be determined 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 in this application embodiment can also be other structures, such as resistors, inductors, switches and other components. Any structure of the filter circuit 190 that can pass AC and block DC is within the protection scope of this application embodiment.

[0139] In the electronic device 10 of this application embodiment, the first radiator 110 is reused as a sensing segment of the Sar sensor 180. The electronic device 10 does not require additional sensing elements or additional design space for sensing elements. The electronic device 10 of this application embodiment has lower hardware cost, simpler structure, and occupies less space.

[0140] Based on the structure of the above-described electronic device 10, please refer to Figure 13 , Figure 13 This is a fourth structural schematic diagram of the electronic device 10 provided in the embodiments of this application. The electronic device 10 also includes a display screen 200, a mid-frame 300, a circuit board 400, a battery 500, and a back cover 600.

[0141] The display screen 200 can be mounted on the mid-frame 300 and connected to the rear housing 600 via the mid-frame 300 to form the display surface of the electronic device 10. The display screen 200 can be used to display images, text, and other information. The display screen 200 can be a display device of the type such as an Organic Light-Emitting Diode (OLED) display or an Organic Light-Emitting Diode (OLED) monitor.

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

[0143] The circuit board 400 can be mounted on the mid-frame 300. The circuit board 400 can be the motherboard of the electronic device 10. The circuit board 400 can integrate one, two, or more electronic devices such as a microphone, speaker, receiver, headphone jack, universal serial bus interface (USB interface), camera assembly, proximity sensor, environmental sensor, gyroscope, and processor. The display screen 200 can be electrically connected to the circuit board 400 to control its display via the processor on the circuit board 400.

[0144] Battery 500 can be mounted on mid-frame 300. Simultaneously, battery 500 is electrically connected to circuit board 400 to power electronic device 10. Power management circuitry can be installed on circuit board 400. This power management circuitry distributes the voltage provided by battery 500 to the various electronic components within electronic device 10.

[0145] The rear cover 600 can be connected to the middle frame 300. The rear cover 600, together with the middle frame 300 and the display screen 200, seals the electronic devices and functional components of the electronic device 10 inside the electronic device 10 to protect the electronic devices and functional components of the electronic device 10.

[0146] It is understood that the ground plane 150 in the embodiments of this application can be formed on the rear shell 600, the circuit board 400 or the middle plate 320. For example, a conductor region with zero potential can be provided on the rear shell 600, the circuit board 400 or the middle plate 320, and the ground plane 150 can be provided on the conductor region.

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

[0148] It is understandable that when the frame 310 of the middle frame 300 is a conductive structure, the first radiator 110, the second radiator 120, and the third radiator 130 can be formed on the frame 310. For example, as Figure 13As shown, multiple slots can be formed on the frame 310 to create a first metal branch 311, a second metal branch 312, and a third metal branch 313. 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. The multiple slots can be filled with a non-conductive material similar in color to the back cover 600 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 can also be disposed in other spaces of the electronic device 10, such as, but not limited to, on the circuit board 400, and can be formed by printing, spraying, or other means. This application embodiment does not limit the specific method of forming the three radiators.

[0150] It should be noted that the above is only an exemplary description of the electronic device 10 in the embodiments of this application. The electronic device 10 may also include a camera module, a sound-to-electric conversion module, etc. The embodiments of this application do 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 used only to distinguish similar objects and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0152] The electronic devices provided in the embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand this application. Furthermore, those skilled in the art will recognize that, based on the ideas of this application, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. An electronic device, characterized in that, include: The first radiator includes a first end, a feed point, a ground point, and a second end arranged in sequence. The ground point is located in the middle of the first radiator, and the first radiator forms a T-shaped antenna. The signal source is electrically connected to the feed point; The first adjustment circuit is electrically connected between the signal source and the feed point; The second radiator is located on the side of the first end away from the second end. The second radiator includes a first free end and a first ground end. The first free end is spaced apart from the first end, and the first ground end is grounded. The second adjustment circuit has one end electrically connected between the first free end and the first ground end, and the other end grounded. A third radiator is located on the side of the second end away from the first end. The third radiator includes a second free end and a second grounded end. The second free end is spaced apart from the second end, and the second grounded end is grounded. A third regulating circuit, wherein one end of the third regulating circuit is electrically connected between the second free end and the second grounded end, and the other end is grounded; wherein... The signal source is used to excite the first radiator to generate a first resonant mode and support the switching of the first wireless signal in different sub-frequency bands under the action of the first adjustment circuit, and to excite the second radiator to support the second wireless signal through the adjustment action of the second adjustment circuit when the first wireless signal is switched to different sub-frequency bands, and to excite the first radiator to generate a third resonant mode and support the third wireless signal through the adjustment action of the third adjustment circuit. The signal source is also used to excite the third radiator to generate a fourth resonant mode, the fourth resonant mode being used to enhance the antenna efficiency when the first resonant mode supports the first wireless signal, and / or, the fourth resonant mode being used to enhance the antenna efficiency when the third resonant mode supports the third wireless signal.

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 resonant mode and support the second wireless signal. The second resonant mode forms a second resonant current flowing from the first free end to the first ground end on the second radiator.

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

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

5. The electronic device according to claim 4, characterized in that, The signal source is also used to excite the third radiator to generate the fourth resonant mode as an auxiliary resonant mode, which, together with the third resonant mode as the main resonant mode, supports the transmission and reception of the third wireless signal.

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

7. The electronic device according to claim 6, characterized in that, The electronic device also includes: A Sar sensor, electrically connected to the first radiator, is used to detect the electromagnetic wave absorption ratio of the electronic device via 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 ground.

8. The electronic device according to any one of claims 1 to 7, characterized in that, The first adjustment circuit includes multiple first adjustment branches with different impedance values. When the first adjustment circuit switches between 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.

9. The electronic device according to any one of claims 1 to 7, characterized in that, The signal source is used to excite the first radiator to switch between different sub-bands of the first wireless signal in the mid-to-high frequency range, and simultaneously excite the second radiator to support the second wireless signal in the 2.4G wireless fidelity band, and excite the first radiator to support the third wireless signal in the N78 band.

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