Electronic device

Abstract

An electronic device according to this application includes a second radiator spaced apart from a first radiator and comprising a second free end, a second feed point, a first ground point, a second ground point, a third feed point, and a third free end. A first feed source is electrically connected to the first radiator and excites the first radiator to support the transmission and reception of a first wireless signal, and excites the first radiator and a portion of the second radiator to jointly support the transmission and reception of a second wireless signal. The first radiator is the main radiator of the second wireless signal. A second feed source is electrically connected to the second feed point and excites a first radiating segment between the second free end and the first ground point to support the transmission and reception of a third and a fourth wireless signal. A third feed source is electrically connected to the third feed point and excites a second radiating segment between the second ground point and the third free end to support a fifth wireless signal. The frequency bands of the fifth wireless signal and the second wireless signal at least partially overlap. Based on this, the electronic device can be miniaturized and can have superior antenna 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 these devices is also becoming smaller. How to reasonably set up multiple antennas in electronic devices has become a problem. Summary of the Invention

[0004] This application provides an electronic device in which multiple radiators can be miniaturized.

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

[0006] The first radiator includes a first free end, a first feed point and a first ground end arranged in sequence, wherein the first ground end is grounded;

[0007] The second radiator includes a second free end, a second feed point, a first ground point, a second ground point, a third feed point, and a third free end arranged in sequence. The second free end is spaced apart from the first free end, and the third free end extends in a direction away from the first free end. The first ground point and the second ground point are grounded.

[0008] The first feed source is electrically connected to the first feed point. The first feed source is used to excite the first radiator to support the transmission and reception of the first wireless signal, and to excite the first radiator and part of the second radiator to jointly support the transmission and reception of the second wireless signal. The first radiator is the main radiator of the second wireless signal.

[0009] A second feed source, electrically connected to the second feed point, is used to excite the first radiating segment between the second free end and the first ground point to support the transmission and reception of the third and fourth wireless signals; and

[0010] The third feed source is electrically connected to the third feed point. The third feed source is used to excite the second radiating segment between the second ground point and the third free end to support the transmission and reception of the fifth wireless signal, wherein the frequency band of the fifth wireless signal and the frequency band of the second wireless signal overlap at least partially.

[0011] The first and second radiators of the electronic device of this application can support the transmission and reception of five wireless signals under the excitation of three feed sources. The radiators can be multiplexed, and the electronic device can be miniaturized. Simultaneously, the second radiating segments of the first and second radiators can be spaced apart by a first radiating segment, resulting in a greater distance between the first and second radiating segments. This minimizes mutual interference between the first and second wireless signals supported by the first radiator and the fifth wireless signal supported by the second radiating segment. Furthermore, a first grounding point and a second grounding point are provided between the first and second radiating segments. These grounding points further improve the isolation between the first and second wireless signals and the fifth wireless signal. Even if the frequency bands of the second and fifth wireless signals at least partially overlap, the electronic device of this application can still achieve co-frequency isolation between the second and fifth wireless signals, thus maintaining superior radiation performance even when supporting multiple wireless signals. Attached Figure Description

[0012] 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.

[0013] Figure 1 This is a schematic diagram of a first structure of an electronic device provided in an embodiment of this application.

[0014] Figure 2 A schematic diagram of current distribution supporting a first wireless signal for an electronic device provided in an embodiment of this application.

[0015] Figure 3 A schematic diagram of current distribution for an electronic device supporting a second wireless signal, provided in an embodiment of this application.

[0016] Figure 4 This is a schematic diagram of a second structure of an electronic device provided in an embodiment of this application.

[0017] Figure 5 A schematic diagram of the S-parameter curves of the electronic device provided in the embodiments of this application supporting the first wireless signal and the second wireless signal.

[0018] Figure 6 A schematic diagram of the antenna efficiency curves for supporting the first wireless signal and the second wireless signal in the electronic device provided in the embodiments of this application.

[0019] Figure 7 This is a schematic diagram of current distribution when an electronic device provided in an embodiment of this application supports a third wireless signal.

[0020] Figure 8 This is a schematic diagram of current distribution when an electronic device provided in an embodiment of this application supports a fourth wireless signal.

[0021] Figure 9 The diagram shows the S-parameter curves and antenna efficiency curves of the electronic device provided in the embodiments of this application when it supports the third and fourth wireless signals.

[0022] Figure 10 This is a schematic diagram of current distribution when the electronic device provided in the embodiment of this application supports a fifth wireless signal.

[0023] Figure 11 This is a schematic diagram of a third structure of an electronic device provided in an embodiment of this application.

[0024] Figure 12 for Figure 11 The first electrical connection diagram of the first matching circuit.

[0025] Figure 13 for Figure 11 The second electrical connection diagram of the first matching circuit is described.

[0026] Figure 14 A schematic diagram of the S-parameter curves and antenna efficiency curves of the electronic device provided in the embodiments of this application when it supports the fifth wireless signal.

[0027] Figure 15 A schematic diagram of the S-parameter curves and antenna efficiency curves of the electronic device provided in the embodiments of this application when it supports the first to the fifth wireless signals.

[0028] Figure 16 This is a schematic diagram of a fourth structure of an electronic device provided in an embodiment of this application.

[0029] Figure 17 This is a fifth structural schematic diagram of the electronic device provided in the embodiments of this application.

[0030] Figure 18 This is an application scenario diagram of the electronic device provided in an embodiment of this application.

[0031] Figure 19 A schematic diagram of the antenna efficiency of the first antenna of the electronic device provided in the embodiments of this application under different scenarios. Detailed Implementation

[0032] The following will refer to the embodiments of this application. Figures 1 to 19The 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.

[0033] This application provides an electronic device, which can be a smartphone, tablet computer, or other similar device. It can also be 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 first feed source 130, a second feed source 140, and a third feed source 150.

[0034] The first radiator 110 includes a first free end 111, a first feed point 112, and a first ground end 113 arranged in sequence, with the first ground end 113 grounded. The second radiator 120 is spaced apart from the first radiator 110 on the side where the first free end 111 is located. The second radiator 120 includes a second free end 121, a second feed point 122, a first ground point 123, a second ground point 124, a third feed point 125, and a third free end 126 arranged in sequence. The second free end 121 is spaced apart from the first free end 111. The third free end 126 extends in a direction away from the second free end 121 and the first free end 111. The first ground point 123 and the second ground point 124 are grounded. A first radiating segment 127 can be formed between the second free end 121 and the first ground point 123, and a second radiating segment 128 can be formed between the third free end 126 and the second ground point 124. The first feed source 130 is electrically connected to the first feed point 112 of the first radiator 110. The first feed source 130 is used to excite the first radiator 110 to support the transmission and reception of the first wireless signal (transmission and reception include receiving and transmitting, which will not be described in detail below). The first feed source 130 is also used to excite the first radiator 110 and part of the second radiator 120 to jointly support the transmission and reception of the second wireless signal. The first radiator 110 is the main radiator of the second wireless signal. The second feed source 140 is electrically connected to the second feed point 122. The second feed source 140 is used to excite the first radiating segment 127 between the second free end 121 and the first ground point 123 of the second radiator 120 to support the transmission and reception of the third and fourth wireless signals. The third feed source 150 is electrically connected to the third feed point 125. The third feed source 150 is used to excite the second radiating segment 128 between the second ground point 124 and the third free end 126 to support the fifth wireless signal. The frequency band of the fifth wireless signal and the frequency band of the second wireless signal overlap at least partially.

[0035] It is understood that the electronic device 10 may also include a ground plane 160. The first grounding terminal 113 of the first radiator 110 and the first grounding point 123 and the second grounding point 124 of the second radiator 120 may be electrically connected to the ground plane 160 through structures such as grounding springs, grounding screws, and solder pads to achieve grounding. The ground plane 160 may be a plane or structure with zero potential. The ground plane 160 may be formed through conductors, printed circuits, or metal printed layers in the electronic device 10; the ground plane 160 may be formed on the motherboard, small board, frame (e.g., the middle board 320 mentioned later) or other carrier board of the electronic device 10. This application embodiment does not limit the specific location of the ground plane 160.

[0036] It is understandable that more grounding points can be provided between the first grounding point 123 and the second grounding point 124 of the second radiator 120 to electrically connect with the grounding plane 160 and achieve grounding. For example, the entire area between the first grounding point 123 and the second grounding point 124 can be grounded. Of course, a gap can also be provided between the first grounding point 123 and the second grounding point 124 so that the second radiator 120 includes a first radiating segment 127 and a second radiating segment 128 arranged at intervals. In this case, a non-conductive material can be filled in the gap to maintain the integrity and structural strength of the second radiator 120.

[0037] It is understood that the first radiator 110 and the second radiator 120 are conductor structures capable of supporting wireless signal transmission and reception. The first radiator 110 and the second radiator 120 may be, but are not limited to, metal branch radiating structures, printed circuit board radiating structures, flexible circuit board radiating structures, laser direct forming radiating structures, silver paste spraying radiating structures, etc. The specific structure of the first radiator 110 and the second radiator 120 is not limited in the embodiments of this application.

[0038] It is understood that the first feed 130, the second feed 140, and the third feed 150 can serve as signal sources for the electronic device 10. Under the excitation of the first feed 130, the first radiator 110 can support the transmission and reception of a first and a second wireless signal. Under the excitation of the second feed 140, the second radiator 120 can support the transmission and reception of a third and a fourth wireless signal; and under the excitation of the third feed 150, the third radiator can support the transmission and reception of a fifth wireless signal. The first to fifth wireless signals can be wireless signals of different frequency bands. Therefore, under the excitation of the three feeds, the first radiator 110 and the second radiator 120 can support the transmission and reception of multiple wireless signals.

[0039] The electronic device 10 of this application embodiment can support the transmission and reception of five kinds of wireless signals under the excitation of three feed sources. The radiators can be multiplexed, and the electronic device 10 can be miniaturized. Meanwhile, the second radiating segments 128 of the first radiator 110 and the second radiator 120 can be spaced apart by a first radiating segment 127, so that the distance between the first radiator 110 and the second radiating segment 128 is relatively large, and the mutual interference between the first wireless signal and the second wireless signal supported by the first radiator 110 and the fifth wireless signal supported by the second radiating segment 128 is small; and a first grounding point 123 and a second grounding point 124 are also provided between the first radiator 110 and the second radiating segment 128. The first grounding point 123 and the second grounding point 124 can further improve the isolation between the first wireless signal, the second wireless signal and the fifth wireless signal. Even if the frequency band of the second wireless signal and the frequency band of the fifth wireless signal overlap at least partially, the electronic device 10 of this application can still achieve co-frequency isolation between the second wireless signal and the fifth wireless signal, so that the electronic device 10 still has better radiation performance when supporting multiple wireless signals.

[0040] Please refer to the following: Figure 2 , Figure 2 This is a schematic diagram of current distribution for an electronic device 10 provided in an embodiment of this application to support a first wireless signal. The first feed 130 can excite the entire first radiator 110 to generate a first resonant mode to support the transmission and reception of the first wireless signal. The first feed 130 and the first radiator 110 can form a first antenna supporting the first wireless signal.

[0041] It is understood that the first resonant mode can form a first resonant current I1 on the first radiator 110, and the first resonant current I1 can flow from the first ground terminal 113 of the first radiator 110 to the first free terminal 111. The first resonant mode can be a quarter-wavelength mode of the first radiator 110.

[0042] It is understood that the first wireless signal can be, but is not limited to, Wireless Fidelity (Wi-Fi) signals, low frequency band (LB, less than 1000MHz) signals, middle and high frequency band (MHB, 1000MHz-3000MHz) signals, high frequency band (HB, greater than 3000MHz) signals, ultra-high frequency (UHB, 3000MHz to 10000MHz) signals, Global Positioning System (GPS) signals, 3rd generation (3G), 4th generation (4G), 5th generation (5G) mobile communication technology, Near Field Communication (NFC) signals, Bluetooth (BT) signals, or Ultra Wideband (UWB) signals. Band (UWB) signal. For example, the first wireless signal can be a low-frequency signal. This application does not specifically limit the first wireless signal.

[0043] It should be noted that the first feed source 130 can also excite all or part of the first radiator 110 to support the transmission and reception of the first wireless signal in other resonant modes, and this application embodiment does not limit this.

[0044] Please refer to the following: Figure 3 , Figure 3 This is a schematic diagram of current distribution for an electronic device 10 provided in this application to support a second wireless signal. The second radiator 120 can be electromagnetically coupled to the first radiator 110. The first feed 130 can excite all the first radiators 110 and part of the second radiators 120 to generate a second resonant mode and a third resonant mode to jointly support the transmission and reception of the second wireless signal. The first feed 130, the first radiators 110 and part of the second radiators 120 can form a second antenna supporting the second wireless signal.

[0045] It is understandable that, such as Figure 3As shown in Figure (a), the first feed source 130 can excite all the first radiators 110 and the first radiation segment 127 between the second free end 121 of the second radiator 120 and the first ground point 123 to jointly generate a second resonant mode. This second resonant mode can form a second resonant current I2. This second resonant current I2 can generate a first current zero region A1 on the first radiator 110 and the first radiation segment 127. The second resonant current I2 can flow from the first current zero region A1 to the first free end 111 and electromagnetically coupled to the first radiation segment 127 and continue to flow to the first ground point 123. The second resonant current I2 can also flow from the first current zero region A1 to the first ground point 113, so that the second resonant mode can be the three-quarter wavelength mode of the first radiator 110 and the mode of the first radiation segment 127 with the same current. The so-called zero-current region refers to the region where the resonant current intensity is weakest on the radiator. Since the resonant current is a periodic excitation current, it can form one or more zero-current regions on the radiator. On the current simulation diagram, the region with the lightest current distribution color is the zero-current region. The intensity of the second resonant current I2 distributed on the first radiator 110 is greater than the intensity of the second resonant current I2 distributed on the first radiating segment 127, so that the first radiator 110 is the main radiator of the second wireless signal.

[0046] It is understandable that, such as Figure 3 As shown in Figure (b), the first feed source 130 can excite all the first radiators 110 and the first radiating segment 127 to jointly generate a third resonant mode. This third resonant mode can form a third resonant current I3. This third resonant current I3 can generate a second current zero-point region A2 on the first radiator 110 and the first radiating segment 127. The third resonant current I3 can flow from the first ground terminal 113 to the second current zero-point region A2, and from the first free terminal 111 to the second current zero-point region A2, and is electromagnetically coupled to the first radiating segment 127 and flows from the second free terminal 121 to the first ground terminal 123, so that the third resonant mode can be the three-quarter wavelength mode of the first radiator 110 and the mode of the first radiating segment 127 with a reverse current. Among them, the current intensity of the third resonant current I3 distributed on the first radiator 110 is greater than the current intensity of the third resonant current I3 distributed on the first radiating segment 127, so that the first radiator 110 is the main radiator of the second wireless signal.

[0047] Understandably, under the excitation of the second and third resonant modes, the first feed 130 can excite the first radiator 110 and the first radiating segment 127 to jointly support the second wireless signal in dual modes of higher-order radiation mode and balanced mode. The second and third resonant modes are resonant modes with opposite flow directions, and the first current zero-point region A1 generated on the first radiator 110 by the second resonant mode can overlap with the second current zero-point region A2 generated on the first radiator 110 by the third resonant mode.

[0048] It is understood that the second wireless signal may be, but is not limited to, a Wi-Fi signal, LB signal, MHB signal, HB signal, UHB signal, GPS signal, 3G signal, 4G signal, 5G signal, NFC signal, Bluetooth signal, or UWB signal. For example, the second wireless signal may be a 2.4G Wi-Fi signal. This application does not specifically limit the second wireless signal.

[0049] It should be noted that the first feed source 130 can also excite the first radiator 110 and the first radiating segment 127 to support the transmission and reception of the second wireless signal in other resonant modes. This application embodiment does not limit this.

[0050] In the electronic device 10 of this application embodiment, the first feed source 130 can independently excite the first radiator 110 to support the transmission and reception of the first wireless signal; the first feed source 130 can also independently excite the first radiator 110 and the first radiating segment 127 to support the transmission and reception of the second wireless signal; the first feed source 130 can also simultaneously excite the first radiator 110 to support the transmission and reception of the first wireless signal and excite the first radiator 110 and the first radiating segment 127 to support the transmission and reception of the second wireless signal. In this case, the first feed source 130 can use devices such as frequency dividers and power dividers to isolate the excitation signals corresponding to the first wireless signal and the second wireless signal so that the first radiator 110 can simultaneously support the transmission and reception of the first wireless signal and the second wireless signal. The first radiator 110 can be reused, which can realize the miniaturization design of the electronic device 10.

[0051] Please refer to the following: Figure 4 , Figure 4 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 a switching circuit 170.

[0052] The switching circuit 170 can be electrically connected to the first radiator 110. For example, the first radiator 110 may also include an electrical connection point 114 disposed between the first free end 111 and the first ground end 113. One end of the switching circuit 170 can be electrically connected to the electrical connection point 114, and the other end of the switching circuit 170 can be electrically connected to the ground plane 160 to achieve grounding. The switching circuit 170 can perform a switching operation to adjust the frequency of the first resonant mode, so that the first radiator 110 can support first wireless signals of different frequency bands under the excitation of the first feed source 130. For example, under the switching action of the switching circuit 170, the first radiator 110 can support low-frequency signals of different frequency bands, such as low-frequency signals of the B5 band (824MHz-894MHz), the B8 band (880MHz-960MHz), or the B28 band (703MHz to 803MHz).

[0053] It is understood that the switching circuit 170 may include multiple switching branches, and the switching circuit 170 can switch between multiple switching branches to perform a switching operation. Each switching branch may include, but is not limited to, a variable number of inductors, capacitors, switches, and other components. The embodiments of this application do not limit the specific structure of the switching circuit 170.

[0054] It is understandable that the specific location of the electrical connection point 114 to the first radiator 110 can be designed so that the switching operation of the switching circuit 170 does not affect the second wireless signal supported by the first radiator 110. For example, when the first feed source 130 excites the first radiator 110 to support the second wireless signal, at least one current-strong point region A3 can be formed on the first radiator 110. The electrical connection point 114 can be set at one of the current-strong point regions A3, so that the first feed source 130 excites the first radiator 110 to support the first wireless signal of different frequency bands, and the first feed source 130 excites the first radiator 110 and the first radiating segment 127 to jointly support the second wireless signal of the same frequency band. Wherein, when the first radiator 110 and the first radiating segment 127 jointly support the second wireless signal in the second radiation mode and the third radiation mode, the current-strong point region A3 where the electrical connection point 114 is located can be the current-strong point region A3 jointly formed by the second radiation mode and the third radiation mode.

[0055] Understandably, the so-called strong current region A3 refers to the region with the highest current intensity formed by the resonant current generated when the radiator supports the wireless signal. Since the resonant current is a periodic excitation current, when the radiator has a certain length, the resonant current can generate one or more strong current regions A3 on the radiator. Among them, in the current simulation diagram, the darkest one or several areas are often the strong current regions A3 generated by the resonant current on the radiator. Since the strong current region A3 is also a weak electric field region or an electric wall region, when the electrical connection point 114 is set in a strong current region A3 when the first radiator 110 supports the second wireless signal, the switching circuit 170 performs a switching operation and switches between different switching branches. This switching operation is unlikely to affect the second wireless signal supported by the first radiator 110, and the second wireless signal can be kept stationary.

[0056] For example, please refer to Figure 5 and Figure 6 , Figure 5 This is a schematic diagram of the S-parameter curves of the electronic device 10 provided in this application embodiment, supporting the first wireless signal and the second wireless signal. Figure 6 A schematic diagram of the antenna efficiency curves of the electronic device 10 provided in this application embodiment, supporting the first wireless signal and the second wireless signal. Figure 5 Curve M1 represents the S-parameter curves of the first wireless signal supporting the B5 band and the second wireless signal supporting 2.4G Wi-Fi on electronic device 10; curve M2 represents the S-parameter curves of the first wireless signal supporting the B8 band and the second wireless signal supporting 2.4G Wi-Fi on electronic device 10; and curve M3 represents the S-parameter curves of the first wireless signal supporting the B28 band and the second wireless signal supporting 2.4G Wi-Fi on electronic device 10. Figure 5 As can be seen from regions P1 and P2, when the first radiator 110 supports first wireless signals of different frequency bands, the frequencies of the second wireless signals supported by the first radiator 110 and the first radiating segment 127 remain essentially unchanged. Therefore, the solution of this application can ensure that the 2.4G Wi-Fi signal remains constant during LB band switching. Furthermore, as... Figure 6 As shown, Figure 6 Curves M4 to M6 are the radiation efficiency curves corresponding to curves M1 to M3, respectively; curves M7 to M10 are the system efficiency curves corresponding to curves M1 to M3, respectively. Figure 6 As can be seen from the multiple curves, the electronic device 10 also has high antenna efficiency when supporting the first wireless signal and the second wireless signal.

[0057] It is understandable that when the first radiator 110 supports the first wireless signal in a first resonant mode of a quarter wavelength, and the first radiator 110 and the first radiating segment 127 support the second wireless signal in a second resonant mode of a three-quarter wavelength with unidirectional and reverse currents, and the third resonant module, the first distance between the electrical connection point 114 and the first free end 111 can be set to be approximately one-third of the second distance between the first ground end 113 and the first free end 111 (for example, the difference between one-third of the first distance and one-third of the second distance can be less than one-eighth of the second distance). At this time, the position of the electrical connection point 114 can be located in the current strong point region A3 of the second resonant mode and the third resonant mode.

[0058] It is understandable that the electrical connection point 114 of the first radiator 110 can overlap with the first feed point 112, and one end of the switching circuit 170 can be electrically connected between the first feed point 112 and the first feed source 130, which can simplify the structure of the first radiator 110.

[0059] The electronic device 10 of this application embodiment is equipped with a switching circuit 170. Under the action of the switching circuit 170, the first feed source 130 can excite the first radiator 110 to support first wireless signals of different frequency bands. The electronic device 10 can support more frequency bands and has a wider range of applications. At the same time, when the electrical connection point 114 is located in the current strong point region A3 when the first radiator 110 supports the second wireless signal, when the switching circuit 170 performs a switching operation, the switching operation is unlikely to affect the second wireless signal supported by the first radiator 110, and the second wireless signal can be kept constantly active.

[0060] The electrical connection point 114 of the first radiator 110 may not be located in the high current region A3 when the first radiator 110 supports the second wireless signal. For example, the electrical connection point 114 may be located near the first free end 111 of the first radiator 110. The switching circuit 170 may include multiple grounded large inductor switching branches. When the switching circuit 170 switches between multiple large inductor switching branches, the first feed 130 excites the first radiator 110 to support the first wireless signal of different frequency bands, and the first feed 130 excites the first radiator 110 and the first radiating segment 127 to jointly support the second wireless signal of the same frequency band.

[0061] It is understandable that the electrical connection point 114 is located near the first free end 111, which may mean that the distance between the electrical connection point 114 and the first free end 111 is less than or equal to one-eighth of the distance between the first free end 111 and the first grounding end 113, so that the electrical connection point 114 is located closer to the first free end 111.

[0062] It is understood that a large inductance switching branch can refer to a switching branch with an equivalent inductance value greater than or equal to 10 nanohenries, for example, the equivalent inductance value of a large inductance switching branch can be greater than 20 nanohenries. This large inductance switching branch may include one or more inductor elements or capacitor elements, and any structure that allows the equivalent inductance value of the switching branch to be greater than 10 nanohenries is within the protection scope of the embodiments of this application.

[0063] It is understandable that when the electrical connection point 114 of the first radiator 110 is located close to the first free end 111 and returns to ground through the switching branch of the large inductor, the switching branch of the large inductor is equivalent to a closed circuit for the low-frequency first wireless signal and to a near-open circuit for the 2.4G Wi-Fi signal second wireless signal. Thus, when the switching circuit 170 performs a switching operation and switches between different switching branches, the switching operation is unlikely to affect the second wireless signal supported by the first radiator 110, and the second wireless signal can be kept stationary.

[0064] The electrical connection point 114 of the first radiator 110 of this application is located close to the first free end 111 and returns to ground through the switching branch of the large inductor, which can realize the permanent presence of the second wireless signal. Furthermore, when the first radiator 110 is located inside the electronic device 10, the electrical connection point 114 and the switching circuit 170 are more likely to be located in the battery compartment, thereby making it easier to lay out the switching circuit 170 inside the electronic device 10.

[0065] Please refer to the following: Figure 7 , Figure 7 This is a schematic diagram of current distribution when the electronic device 10 provided in this application supports a third wireless signal. The second feed 140 can excite the first radiating segment 127 of the second radiator 120 to generate a fourth resonant mode and support the transmission and reception of the third wireless signal. The second feed 140 and the first radiating segment 127 can form a third antenna that supports the third wireless signal.

[0066] It is understood that the fourth resonant mode can form a fourth resonant current I4 on the first radiation segment 127. The fourth resonant current I4 can flow from the first ground point 123 of the first radiation segment 127 to the second free end 121. The fourth resonant mode can be a quarter-wavelength mode of the first radiation segment 127.

[0067] Please refer to the following: Figure 8 , Figure 8This is a schematic diagram of current distribution when the electronic device 10 provided in this application supports a fourth wireless signal. The second feed source 140 can excite the radiating segment (a part of the first radiating segment 127) between the second free end 121 and the second feed point 122 of the second radiator 120 to generate a fifth resonant mode and support the transmission and reception of the fourth wireless signal. The second feed source 140 and the radiating segment between the second free end 121 and the second feed point 122 can form a fourth antenna supporting the fourth wireless signal.

[0068] It is understood that the fifth resonant mode can form a fifth resonant current I5 on the radiation segment between the second free end 121 and the second feed point 122 of the second radiator 120, and the fifth resonant current I5 can flow from the second feed point 122 to the second free end 121.

[0069] It is understood that the third and fourth wireless signals can be, but are not limited to, Wi-Fi signals, LB signals, MHB signals, HB signals, UHB signals, GPS signals, 3G signals, 4G signals, 5G signals, NFC signals, Bluetooth signals, or UWB signals. For example, the third wireless signal can be an N78 band signal (3300MHz-3800MHz), and the fourth wireless signal can be a 5G Wi-Fi signal. In this case, the frequency spacing between the third and fourth wireless signals and the low-frequency first wireless signal and the 2.4G Wi-Fi signal is relatively large, making it less likely for the third and fourth wireless signals to interfere with the first and second wireless signals. It should be noted that the embodiments of this application do not specifically limit the third and fourth wireless signals.

[0070] It is understood that the second feed 140 can also excite all or part of the first radiating segment 127 to support the transmission and reception of the third or fourth wireless signal in other resonant modes, and this application embodiment does not limit this.

[0071] It is understood that the second feed 140 can independently excite the first radiating segment 127 to support the transmission and reception of the third wireless signal, and the second feed 140 can also independently excite the radiating segment between the second free end 121 and the second feed point 122 to support the transmission and reception of the fourth wireless signal. Alternatively, the second feed 140 can simultaneously excite the first radiating segment 127 to support the transmission and reception of both the third and fourth wireless signals. For example, please refer to... Figure 9 , Figure 9 A schematic diagram of the S-parameter curves and antenna efficiency curves of the electronic device 10 provided in this application embodiment when it supports the third wireless signal and the fourth wireless signal. Figure 9Curve M10 represents the S11 parameter curves when the third and fourth antennas are operating. Curves M11 and M12 represent the radiation efficiency and system efficiency curves when the third and fourth antennas are operating, respectively. From curves M10 to M12, it can be seen that the antenna performance of the third and fourth antennas is superior.

[0072] It is understood that the length of the first radiating segment 127 between the first grounding point 123 and the second free end 121 can be slightly greater than one-quarter of the wavelength corresponding to the third wireless signal and slightly shorter than one-quarter of the wavelength corresponding to the second wireless signal, so that the second antenna and the third antenna can reuse the first radiating segment 127 as a radiating structure. The first radiating segment 127 of this length can accommodate both the second antenna and the third antenna. For example, the difference between the length of the first radiating segment 127 and one-quarter of the wavelength corresponding to the third wireless signal can be between one-thirty-sixth and one-forty-eighth of the wavelength corresponding to the third wireless signal, and the difference between one-quarter of the wavelength corresponding to the second wireless signal and the length of the first radiating segment 127 can be between one-thirty-sixth and one-forty-eighth of the wavelength corresponding to the second wireless signal. Of course, the length of the first radiating segment 127 can also be other lengths. In this case, it can be adjusted by other matching circuits and filtering circuits to accommodate both the second antenna and the third antenna. This application embodiment does not limit this.

[0073] In this embodiment, the third and fourth antennas reuse the first radiating segment 127 of the second radiator 120 as a radiating structure to support the third and fourth wireless signals, which can further realize the miniaturization design of the electronic device 10.

[0074] Please refer to the following: Figure 10 , Figure 10 This is a schematic diagram of current distribution when the electronic device 10 provided in this application supports a fifth wireless signal. The third feed 150 can excite the second radiating segment 128 of the second radiator 120 to generate a sixth resonant mode and a seventh resonant mode to jointly support the fifth wireless signal. The third feed 150 and the second radiating segment 128 can form a fifth antenna that supports the fifth wireless signal.

[0075] It is understandable that, such as Figure 10 As shown in Figure (c), the third feed 150 can excite the entire second radiation segment 128 to generate a sixth resonant mode. The sixth resonant mode can form a sixth resonant current I6 on the second radiation segment 128. The sixth resonant current I6 can flow from the second ground point 124 to the third free end 126. The sixth resonant mode can be a quarter-wavelength mode of the second radiation segment 128.

[0076] It is understandable that, such as Figure 10As shown in Figure (d), the third feed 150 can excite the radiation segment between the third feed point 125 and the third free end 126 to generate the seventh resonant mode. At this time, the third feed 150 can excite part of the second radiation segment 128 to generate the seventh resonant mode. The seventh resonant mode can form a seventh resonant current I7 on part of the second radiation segment 128. The seventh resonant current I7 can flow from the third feed point 125 to the third free end 126.

[0077] It is understandable that the third feed 150 can excite the second radiating section 128 to generate the sixth or seventh resonant mode alone, or the third feed 150 can simultaneously excite the second radiating section 128 to generate both the sixth and seventh resonant modes, so that the fifth wireless signal can have a wider frequency band.

[0078] It is understandable that the frequency band of the fifth wireless signal can completely overlap with the frequency band of the second wireless signal, meaning they can both be wireless signals in the same frequency band; or the frequency band of the fifth wireless signal can partially overlap with the frequency band of the second wireless signal, allowing them to overlap within a certain frequency band. For example, the fifth wireless signal could be an MHB signal, and the second wireless signal could be a 2.4G Wi-Fi signal, allowing them to overlap within a certain frequency band.

[0079] It is understood that the fifth wireless signal may also be, but is not limited to, a Wi-Fi signal, LB signal, HB signal, UHB signal, GPS signal, 3G signal, 4G signal, 5G signal, NFC signal, Bluetooth signal, or UWB signal. This application does not specifically limit the fifth wireless signal.

[0080] Please refer to the following: Figure 11 , Figure 11 This is a third structural schematic diagram of the electronic device 10 provided in an embodiment of this application. The electronic device 10 may also include a matching circuit, such as a first matching circuit 181.

[0081] The first matching circuit 181 can perform broadband matching on the sixth and seventh resonant modes so that the fifth wireless signal can cover more frequency bands of wireless signals, such as making the fifth wireless signal cover all mid-to-high frequency wireless signals.

[0082] like Figure 12 As shown, Figure 12 for Figure 11The diagram shows a first electrical connection of the first matching circuit 181. The first matching circuit 181 includes an inductor connected in series between the third feed source 150 and the third feed point 125, and a capacitor connected in parallel between the third feed source 150 and the third feed point 125. For example, the first matching circuit 181 includes a first inductor 1811, a second inductor 1812, and a first capacitor 1813. The first inductor 1811 and the second inductor 1812 are connected in series between the third feed source 150 and the third feed point 125 (i.e., the second radiating segment 128). One end of the first capacitor 1813 is electrically connected between the first inductor 1811 and the second inductor 1812, and the other end of the first capacitor 1813 is grounded. In this case, the first matching circuit 181 can perform broadband matching for the sixth and seventh resonant modes, so that the fifth wireless signal covers all mid-to-high frequency wireless signals.

[0083] like Figure 13 As shown, Figure 13 for Figure 11 The second electrical connection diagram of the first matching circuit 181 shows that the first matching circuit 181 includes a capacitor element connected in series between the third feed source 150 and the third feed point 125, and an inductor element connected in parallel between the third feed source 150 and the third feed point 125. For example, the first matching circuit 181 includes a second capacitor element 1814, a third capacitor element 1815, and a third inductor element 1816. The second capacitor element 1814 and the third capacitor element 1815 are connected in series between the third feed source 150 and the third feed point 125 (i.e., the second radiating segment 128). One end of the third inductor element 1816 is electrically connected between the first inductor element 1811 and the second inductor element 1812, and the other end of the third inductor element 1816 is grounded. In this case, the first matching circuit 181 can also perform broadband matching for the sixth resonant mode and the seventh resonant mode so that the fifth wireless signal covers all mid-to-high frequency wireless signals.

[0084] It should be noted that the first matching circuit 181 is not limited to the above structure. Any structure in which all inductors of the first matching circuit 181 are connected in series between the third feed source 150 and the third feed point 125, and all capacitors are connected in parallel between the third feed source 150 and the third feed point 125, or any structure in which all capacitors of the first matching circuit 181 are connected in series between the third feed source 150 and the third feed point 125, and all inductors are connected in parallel between the third feed source 150 and the third feed point 125, can be the structure of the first matching circuit 181 of this application. This application embodiment does not limit this.

[0085] It is understandable that after the electronic device 10 performs broadband matching of the sixth and seventh resonant modes through the first matching circuit 181, the second radiating segment 128 of the second radiator 120, under the excitation of the third feed source 150, can cover all mid-to-high frequency wireless signals in the sixth and seventh resonant modes. For example, please refer to... Figure 14 , Figure 14 This is a schematic diagram of the S-parameter curves and antenna efficiency curves of the electronic device 10 provided in this application embodiment when it supports a fifth wireless signal. Figure 14 Curve M13 represents the S11 parameter curve when the fifth antenna is operating, while curves M14 and M15 represent the radiation efficiency curve and system efficiency curve, respectively, when the fifth antenna is operating. From curves M13 to M15, it can be seen that the antenna efficiency of the fifth antenna meets communication requirements across the entire mid-to-high frequency band, and the fifth antenna can cover the entire mid-to-high frequency band.

[0086] It is understandable that when the first feed 130, the second feed 140, and the third feed 150 of the electronic device 10 operate simultaneously, the electronic device 10 can support the first to the fifth wireless signals. Please refer to [the relevant documentation / reference]. Figure 15 , Figure 15 This application provides a schematic diagram of the S-parameter curves and antenna efficiency curves of the electronic device 10 supporting the first to the fifth wireless signals. Figure 14 Curves M16 to M18 represent the S-parameter curves when the first feed source 130, the second feed source 140, and the third feed source 150 are operating, respectively. Curve M19 represents the isolation curve when the first feed source 130 and the second feed source 140 are operating simultaneously. Curve M20 represents the isolation curve when the first feed source 130 and the third feed source 150 are operating simultaneously. Curve M21 represents the isolation curve when the second feed source 140 and the third feed source 150 are operating simultaneously. As can be seen from curves M16 to M18, the electronic device 10 of this application can cover wireless signals such as the LB band, the MHB band, the 2.4G Wi-Fi band, the UHB band, and the 5G Wi-Fi band, thereby covering the main operating frequency band of the electronic device 10 through two radiators. Furthermore, since the first grounding point 123 and the second grounding point 124 increase the grounding path, the isolation between the first radiator 110 and the second radiating segment 128 is improved. At the same time, a large part of the resonant current of the 2.4G Wi-Fi signal is on the first radiator 110 and is not on the same branch as the resonant current of the MHB band wireless signal. This makes the isolation between the 2.4G Wi-Fi signal and the MHB band signal greater than -12dB, which can realize the separation of the MHB band signal and the 2.4G Wi-Fi signal, save the radio frequency extractor, and achieve co-frequency isolation.

[0087] The electronic device 10 of this application embodiment is equipped with a first matching circuit 181. Under the action of the first matching circuit 181, the fifth antenna can cover a wider range of mid-to-high frequency signals, and the fifth wireless signal supported by the fifth antenna has a wider bandwidth. At the same time, the electronic device 10 of this application can cover the main operating frequency band of the electronic device 10, and the mid-to-high frequency signals supported by the fifth antenna can be isolated from the 2.4G Wi-Fi signal supported by the second antenna at the same frequency. This can reduce the production cost of the electronic device 10 and improve the antenna performance when the electronic device 10 supports multiple wireless signals.

[0088] Please refer to this again. Figure 11 The electronic device 10 in this application embodiment may further include at least one of a second matching circuit 182 and a third matching circuit 183.

[0089] The second matching circuit 182 can be electrically connected between the first feed source 130 and the first feed point 112 to realize the electrical connection between the second matching circuit 182 and the first feed source 130 and the first radiator 110. The second matching circuit 182 can perform impedance matching adjustment on the excitation signal provided by the first feed source 130 so that the first feed source 130 can better excite the first radiator 110 to support the first wireless signal, and better excite the first radiator 110 and the first radiating segment 127 to support the second wireless signal.

[0090] The third matching circuit 183 can be electrically connected between the second feed source 140 and the second feed point 122 to realize the electrical connection between the third matching circuit 183, the second feed source 140, and the first radiating segment 127. The third matching circuit 183 can perform impedance matching adjustment on the excitation signal provided by the second feed source 140 so that the second feed source 140 can better excite the first radiating segment 127 to support the third and fourth wireless signals.

[0091] It is understood that the second matching circuit 182 and the third matching circuit 183 may include, but are not limited to, an unlimited number of capacitors, inductors, and switches. This application does not limit this aspect.

[0092] For the structure of the aforementioned electronic device 10, please refer to... Figure 16 , Figure 16 This is a fourth structural schematic diagram of the electronic device 10 provided in the embodiments of this application. The electronic device 10 may also include a display screen 200, a mid-frame 300, a circuit board 400, a battery 500, and a back cover 600.

[0093] The display screen 200 is disposed on the mid-frame 300 to form the display surface of the electronic device 10 for displaying images, text, and other information. The display screen 200 may include a liquid crystal display (LCD) or an organic light-emitting diode (OLED) display screen, among other types.

[0094] The middle frame 300 may include a side frame 310 and a middle plate 320. The side frame 310 may be a hollow frame structure forming the outer frame of the electronic device 10, and the middle plate 320 may be a thin plate or sheet structure. The middle frame 300 provides support for electronic devices or functional components in the electronic device 10, allowing the electronic devices and functional components of the electronic device 10 to be mounted together. For example, the middle frame 300 may have grooves, protrusions, through holes, or other structures to facilitate the mounting of electronic devices or functional components of the electronic device 10. It is understood that the material of the middle frame 300 may include metal or plastic.

[0095] The circuit board 400 is mounted on the mid-frame 300 for fixation and is sealed inside the electronic device 10 by the rear cover 600. The circuit board 400 may integrate a processor, as well as one or more functional components such as a headphone jack, accelerometer, gyroscope, and motor. Simultaneously, 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.

[0096] The battery 500 is mounted on the mid-frame 300 and sealed inside the electronic device 10 by the rear cover 600. The battery 500 is electrically connected to the circuit board 400 to power the electronic device 10. The circuit board 400 may contain a power management circuit. This power management circuit distributes the voltage provided by the battery 500 to the various electronic components within the electronic device 10.

[0097] The back cover 600 is connected to the middle frame 300. For example, the back cover 600 can be attached to the middle frame 300 using an adhesive such as double-sided tape to achieve the connection with the middle frame 300. The back cover 600, together with the middle frame 300 and the display screen 200, seals the electronic components and functional parts of the electronic device 10 inside the electronic device 10, thereby providing protection for the electronic components and functional parts of the electronic device 10.

[0098] It is understood that the ground plane 160 in the embodiments of this application can be formed on the middle plate 320 of the rear shell 600, the circuit board 400 or the middle frame 300. 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 160 can be provided on the conductor region.

[0099] It is understood that one or more of the first feed source 130, the second feed source 140, the third feed source 150, the switching circuit 170, the first matching circuit 181, the second matching circuit 182, and the third matching circuit 183 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, and this application embodiment does not limit the specific placement of the above structures.

[0100] It is understood that the above are merely exemplary examples of the electronic device 10. The electronic device 10 in this application embodiment may also include components such as a camera, a sensor, and a sound-to-electric conversion device. These components can be found in the descriptions in related technologies and will not be repeated here.

[0101] Please refer to the following: Figure 17 , Figure 17 This is a fifth structural schematic diagram of the electronic device 10 provided in the embodiments of this application. The border 310 of the middle frame 300 may further include a first border 311, a second border 312, a third border 313 and a fourth border 314 connected in sequence.

[0102] The first border 311 and the third border 313 are arranged opposite to each other, and the second border 312 and the fourth border 314 are arranged opposite to each other. The length of the first border 311 and the third border 313 is longer than the length of the second border 312 or the fourth border 314, so that the first border 311 and the third border 313 can be the long border 310 of the electronic device 10, and the second border 312 and the fourth border 314 can be the short border 310 of the electronic device 10.

[0103] It is understood that both the first radiator 110 and the second radiator 120 can be disposed on the first frame 311, or both can be disposed on the third frame 313. For example, the first radiator 110 and the second radiator 120 can be disposed in the middle region of the first frame 311 (for example, the distance from the first grounding end 113 of the first radiator 110 to the second frame 312 is greater than or equal to one-quarter of the length of the first frame 311, and the distance from the third free end 126 of the second radiator 120 to the fourth frame 314 is greater than or equal to one-quarter of the length of the first frame 311), or the first radiator 110 and the second radiator 120 can be disposed in the middle region of the third frame 313. In this case, please refer to... Figure 18 , Figure 18This is an application scenario diagram of the electronic device 10 provided in this application embodiment. When the electronic device 10 is in a landscape two-handed holding scenario, the first radiator 110 and the second radiator 120 are not easily held by the user's hand. The second antenna supporting 2.4G Wi-Fi signal and the fourth antenna supporting 5G Wi-Fi signal are both located in the middle of the electronic device 10. In this hand-holding scenario, they are far away from the user's hand and are less affected by the user's hand. Therefore, the antenna efficiency reduction of the second antenna and the fourth antenna is very small. The reduction when the second antenna supports 2.4G Wi-Fi signal and the fourth antenna supports 5G Wi-Fi signal is less than 2dB.

[0104] It is understood that the first frame 311 or the third frame 313 can, but is not limited to, form at least two metal branches by opening multiple gaps. The first radiator 110 may include one of the metal branches, and the second radiator 120 may include the other metal branch, thus the first radiator 110 and the second radiator 120 can be frame-radiating structures. Of course, the first radiator 110 and the second radiator 120 can also be other radiating structures. In this case, the first radiator 110 and the second radiator 120 can be connected to the first frame 311 or the third frame 313, and their projections are located on the first frame 311 or the third frame 313. The embodiments of this application do not specifically limit the formation method of the first radiator 110 and the second radiator 120.

[0105] It is understandable that when the electronic device 10 is in a vertical holding posture, the distance between the second frame 312 and the ground plane is less than the distance between the fourth frame 314 and the ground plane, so that the second frame 312 is the bottom frame of the electronic device 10 in a vertical holding posture, and the fourth frame 314 is the top frame of the electronic device 10 in a vertical holding posture. At this time, the first radiator 110 can be positioned close to the second frame 312. The distance between the first ground terminal 113 of the first radiator 110 and the second frame 312 can be less than the distance between the first free end 111 and the second frame 312. Thus, the first radiator 110 can be a radiating structure with its opening facing upward (free end facing upward). When the first radiator 110 supports a low-frequency first wireless signal under the excitation of the first feed 130, the first antenna formed by the first feed 130 and the first radiator 110 will have a very low single-hand dropout. Compared with a low-frequency antenna with its opening facing downward (the single-hand dropout of this low-frequency antenna is generally 5-6 dB), the dropout of the first antenna with its opening facing upward in this application is generally only 2-3 dB. The dropout of the first antenna with its opening facing upward in this application is smaller in the hand-held scenario, thus the first antenna still has better radiation performance in the hand-held scenario. For example, please refer to Figure 19 , Figure 19The diagram illustrates the antenna efficiency of the first antenna of the electronic device 10 provided in this application under different scenarios. Comparing the antenna efficiency of the first antenna in free space (FS) scenario, right-hand scenario (BHHR) scenario, and left-hand scenario (BHHL) scenario, supporting B5, B8, and B28 band signals respectively, it can be seen that the antenna efficiency reduction of the upward-facing first antenna in this application is generally only 2-3 dB under different hand-gripping scenarios, indicating that the first antenna has superior anti-gripping performance.

[0106] The electronic device 10 of this application embodiment, with its first radiator 110 and second radiator 120, can support the transmission and reception of five wireless signals under the excitation of three feed sources. On the one hand, the multiplexing of the radiators enables the miniaturization of the electronic device 10; on the other hand, when the first radiator 110 and the second radiator 120 are disposed on one side frame 310 of the electronic device 10, the electronic device 10 can also achieve full coverage of LB band, MHB band, 2.4G Wi-Fi signal, UHB band, and 5G Wi-Fi signal on a single side, thus broadening the application scenarios of the electronic device 10. Furthermore, the electrical connection point 114 of the switching circuit 170 is disposed in the area A3 where the current is strong due to the 2.4G Wi-Fi signal. The switching circuit 170 allows the 2.4G Wi-Fi signal to remain constant when the first antenna switches between low-frequency signals of different bands, improving the user experience. Furthermore, the second antenna, supporting 2.4G Wi-Fi signals, exhibits superior isolation performance when the fifth antenna supports the MHB band. This antenna solution addresses the coexistence issue of 2.4G Wi-Fi signals and MHB band signals, saving on the need for an extractor and reducing the production cost of the electronic device 10. Additionally, the fifth antenna utilizes a first matching circuit 181 for broadband matching, enabling it to cover the entire MHB band without requiring a switch, further expanding the application scenarios of the electronic device 10. Simultaneously, the second antenna supporting 2.4G Wi-Fi signals and the fourth antenna supporting 5G Wi-Fi signals can be positioned away from the user's hands when holding the device. The second and fourth antennas perform well in hand-held scenarios, improving Wi-Fi signal performance in gaming scenarios. Moreover, the first antenna has an upward-facing opening structure in a vertical hand-held posture, minimizing head-to-hand drop and maintaining superior antenna performance even when held in hand.

[0107] It should be understood that in the description of this application, terms such as "first" and "second" are used only to distinguish similar objects and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0108] 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 free end, a first feed point and a first ground end arranged in sequence, wherein the first ground end is grounded; The second radiator includes a second free end, a second feed point, a first ground point, a second ground point, a third feed point, and a third free end arranged in sequence. The second free end is spaced apart from the first free end, and the third free end extends in a direction away from the first free end. The first ground point and the second ground point are grounded. The first feed source is electrically connected to the first feed point. The first feed source is used to excite the first radiator to support the transmission and reception of the first wireless signal, and to excite the first radiator and part of the second radiator to jointly support the transmission and reception of the second wireless signal. The first radiator is the main radiator of the second wireless signal. A second feed source, electrically connected to the second feed point, is used to excite the first radiating segment between the second free end and the first ground point to support the transmission and reception of the third and fourth wireless signals; and The third feed source is electrically connected to the third feed point. The third feed source is used to excite the second radiating segment between the second ground point and the third free end to support the transmission and reception of the fifth wireless signal, wherein the frequency band of the fifth wireless signal and the frequency band of the second wireless signal overlap at least partially.

2. The electronic device according to claim 1, characterized in that, The first radiator further includes an electrical connection point; the electronic device further includes: A switching circuit is electrically connected to the electrical connection point. The switching circuit is used to perform a switching operation so that the first radiator supports the transmission and reception of the first wireless signal in different frequency bands under the excitation of the first feed source.

3. The electronic device according to claim 2, characterized in that, When the first radiator supports the second wireless signal, it forms at least one region with a strong current. The electrical connection point is located in a region with a high current, so that under the switching action of the switching circuit, the first feed excites the first radiator to support the transmission and reception of the first wireless signal in different frequency bands, and the first feed excites the first radiator and part of the second radiator to jointly support the transmission and reception of the second wireless signal in the same frequency band.

4. The electronic device according to claim 2, characterized in that, The electrical connection point is located near the first free end. The switching circuit includes multiple grounded large inductor switching branches. When the switching circuit switches between the multiple large inductor switching branches, the first feed excites the first radiator to support the transmission and reception of the first wireless signal in different frequency bands, and the first feed excites the first radiator and part of the second radiator to jointly support the transmission and reception of the second wireless signal in the same frequency band.

5. The electronic device according to claim 3 or 4, characterized in that, The electrical connection point overlaps with the first power supply point.

6. The electronic device according to claim 3 or 4, characterized in that, The first wireless signal is a low-frequency signal, and the second wireless signal is a 2.4G wireless fidelity signal.

7. The electronic device according to claim 1, characterized in that, The first feed source is used to excite the first radiator to generate a first resonant mode to support the transmission and reception of the first wireless signal; The first resonant mode generates a first resonant current on the first radiator that flows from the first ground terminal to the first free terminal.

8. The electronic device according to claim 1, characterized in that, The first feed source is used to excite the first radiator and the first radiating segment to generate a second resonant mode and a third resonant mode to jointly support the transmission and reception of the second wireless signal; wherein, The second resonant mode forms a first current zero-point region on the first radiator, and the second resonant mode forms a second resonant current on the first radiator and the first radiating segment that flows from the first current zero-point region to the first grounding point and from the first current zero-point region to the first grounding terminal. The third resonant mode forms a second current zero-point region on the first radiator, and the third resonant mode forms a third resonant current on the first radiator and the first radiating segment that flows from the second free end to the first grounding point, and from the first free end to the second current zero-point region, and from the first grounding end to the second current zero-point region.

9. The electronic device according to claim 8, characterized in that, The current intensity of the second resonant current distributed on the first radiator is greater than the current intensity of the second resonant current distributed on the first radiating segment; The current intensity of the third resonant current distributed on the first radiator is greater than the current intensity of the third resonant current distributed on the first radiating segment.

10. The electronic device according to claim 1, characterized in that, The second feed source is used to excite the first radiating segment to support the transmission and reception of the third wireless signal in a fourth resonant mode. The fourth resonant mode forms a fourth resonant current on the first radiating segment that flows from the first ground point to the second free end. The second feed source is used to excite the radiation segment between the second feed point and the second free end to support the transmission and reception of the fourth wireless signal in a fifth resonant mode, wherein the fifth resonant mode forms a fifth resonant current flowing from the second feed point to the second free end.

11. The electronic device according to claim 10, characterized in that, The length of the radiator between the first grounding point and the second free end is slightly greater than one-quarter of the wavelength corresponding to the third wireless signal and slightly less than one-quarter of the wavelength corresponding to the second wireless signal.

12. The electronic device according to claim 10, characterized in that, The third wireless signal is an N78 band wireless signal, and the fourth wireless signal is a 5G wireless fidelity signal.

13. The electronic device according to claim 1, characterized in that, The third feed source is used to excite the second radiating segment to generate a sixth resonant mode and a seventh resonant mode to jointly support the transmission and reception of the fifth wireless signal; wherein, The sixth resonant mode forms a sixth resonant current flowing from the second grounding point to the third free end; the seventh resonant mode forms a fourth resonant current flowing from the third feed point to the third free end.

14. The electronic device according to claim 13, characterized in that, The electronic device also includes: The matching circuit includes an inductor connected in series between the third feed source and the third feed point and a capacitor connected in parallel between the third feed source and the third feed point; or, it includes a capacitor connected in series between the third feed source and the third feed point and an inductor connected in parallel between the third feed source and the third feed point. The matching circuit is used to perform broadband matching on the sixth resonant mode and the seventh resonant mode so that the fifth wireless signal covers all mid-to-high frequency wireless signals.

15. The electronic device according to any one of claims 1 to 4, 7 to 14, characterized in that, The electronic device further includes a first frame, a second frame, a third frame, and a fourth frame connected in sequence. The first frame is disposed opposite to the third frame, and the second frame is disposed opposite to the fourth frame. The length of the first frame and the third frame is greater than the length of the second frame or the fourth frame. The first radiator and the second radiator are disposed on the first frame or the third frame.

16. The electronic device according to claim 15, characterized in that, When the electronic device is in a vertical holding posture, the distance between the second frame and the ground plane is less than the distance between the fourth frame and the ground plane; The distance between the first grounding end and the second frame is less than the distance between the first free end and the second frame.

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