Electronic device

Abstract

The invention provides electronic equipment, a first radiator of a first antenna comprises a first free end, a first feeding point and a second free end, one end of a grounding structure is electrically connected between the first feeding point and a first feed source, and the other end of the grounding structure is grounded; a second radiating body of the second antenna comprises a first grounding end, a second feeding point and a third free end; in the unfolding state, the first feed source excites the first radiator to support a wireless signal of a first frequency band, and the second feed source and the second feed point are in an electrical connection state to excite the second radiator to support a wireless signal of a second frequency band; in the overlapping state, at least part of the second radiator is overlapped with the first radiator, the first feed source excites the first radiator to support wireless signals of a first frequency band, the second feed source and the second feed point are in a disconnected state, and the second radiator is electromagnetically coupled with the first radiator and supports wireless signals of a third frequency band. The electronic equipment can give consideration to antenna performance in an unfolded state and an overlapped state.

Description

Technical Field

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

[0002] With the development of communication technology, electronic devices such as smart phones can implement folding operations so that the electronic devices can have an unfolded state and an overlapped state. In addition, the electronic devices can include antenna radiators to implement mobile communication services.

[0003] However, compared to the unfolded state, when the electronic device is in the overlapped state, the surrounding environment of the antenna radiator will undergo adverse changes, resulting in reduced radiation performance of the antenna radiator, making it difficult for the electronic device to take into account the antenna performance in both the unfolded state and the overlapped state. Summary of the invention

[0004] The present application provides an electronic device having excellent antenna performance in both an unfolded state and a folded state.

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

[0006] first ontology;

[0007] a second body, movable relative to the first body, so that the electronic device is in an overlapping state where at least a portion of the second body overlaps the first body, or in an unfolded state where the first body and the second body are relatively unfolded;

[0008] A first antenna, arranged on the first body, comprising a first feed source, a first radiator and a ground return structure, wherein the first radiator comprises a first free end, a first feeding point and a second free end arranged in sequence, the first feed source is electrically connected to the first feeding point, one end of the ground return structure is electrically connected between the first feeding point and the first feed source, and the other end is grounded;

[0009] A second antenna is provided on the second body, the second antenna comprises a second feed source and a second radiator, the second radiator comprises a first ground terminal, a second feed point and a third free terminal arranged in sequence; wherein,

[0010] In the unfolded state, the first feed source excites the first radiator to support wireless signals of a first frequency band, and the second feed source is electrically connected to the second feed point to excite the second radiator to support wireless signals of a second frequency band;

[0011] In the overlapping state, at least a portion of the second radiator overlaps with the first radiator, and the first feed source excites the first radiator to support wireless signals in the first frequency band; the second feed source and the second feeding point are in a disconnected state, and the second radiator is electromagnetically coupled with the first radiator and supports wireless signals in a third frequency band.

[0012] In the electronic device of the present application, in the unfolded state, the first antenna and the second antenna can work independently and each support the corresponding frequency band; in the overlapping state, the second radiator can be electromagnetically coupled with the first radiator and support the wireless signal of the third frequency band, so that the first radiator and the second radiator can be multiplexed, the utilization rate of the first radiator and the second radiator in different scenarios is higher, and the application scenarios of the electronic device are wider. At the same time, the first radiator includes a first free end, a first feeding point and a second free end arranged in sequence, the first radiator has two free ends, the return structure and the first feed source are electrically connected to the first radiator through the same first feeding point, in the unfolded state and the overlapping state, the resonant current generated by the excitation of the first feed source passes through the return structure and then is fed into the first radiator, which can flow more fully toward the two free ends on the first radiator and form two radiation openings, so that the antenna efficiency of the first frequency band supported by the first radiator is higher. The second radiator includes a first grounding end, a second feeding point and a third free end arranged in sequence, the second radiator has a free end and can form a radiation opening, the second radiator has a different radiation structure from the first radiator, the second radiator has a smaller adverse effect on the frequency range of the first frequency band supported by the first radiator in the overlapping state, and the second radiator is not likely to affect the radiation performance of the first radiator. Based on this, the electronic device of the embodiment of the present application has a higher antenna efficiency of the first antenna in both the unfolded state and the overlapping state, and the first antenna can have better performance, so that the present application can take into account the antenna performance of the first antenna in both the unfolded state and the overlapping state. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0014] Figure 1 A first structural schematic diagram of an electronic device provided in an embodiment of the present application.

[0015] Figure 2 for Figure 1 A schematic diagram of the structure of the electronic device shown is in another state.

[0016] Figure 3A second structural schematic diagram of an electronic device provided in an embodiment of the present application.

[0017] Figure 4 The present invention is a structural schematic diagram of an electronic device of related technology.

[0018] Figure 5 for Figure 3 The electronic equipment shown is Figure 4 A schematic diagram showing a comparison of antenna efficiency curves of electronic devices is shown.

[0019] Figure 6 A third structural schematic diagram of the electronic device provided in an embodiment of the present application.

[0020] Figure 7 A fourth structural schematic diagram of an electronic device provided in an embodiment of the present application.

[0021] Figure 8 A fifth structural schematic diagram of an electronic device provided in an embodiment of the present application.

[0022] Fig. 9 A sixth structural schematic diagram of an electronic device provided in an embodiment of the present application.

[0023] Fig.10 A seventh structural schematic diagram of an electronic device provided in an embodiment of the present application.

[0024] Fig.11 This is a schematic diagram of the eighth structure of the electronic device provided in the embodiment of the present application. DETAILED DESCRIPTION

[0025] The following will be combined with the attached examples of the present application Figure 1 To Attachment Fig.11 , the technical solutions in the embodiments of the present application are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0026] The embodiment of the present application provides an electronic device 10, which can be a smart phone, a tablet computer, or a gaming device, an augmented reality (AR) device, an automotive device, a data storage device, an audio playback device, a video playback device, a laptop computer, a desktop computing device, etc. The electronic device 10 has a wireless communication function. For example, the electronic device 10 can transmit wireless fidelity (Wi-Fi) signals, global positioning system (GPS) signals, third-generation mobile communication technology (3rd-Generation, 3G), fourth-generation mobile communication technology (4th-Generation, 4G), fifth-generation mobile communication technology (5th-Generation, 5G), near field communication (NFC) signals, Bluetooth (BT) signals, ultra-wideband communication (UWB) signals, etc.

[0027] Please refer to Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of a first structure of an electronic device 10 provided in an embodiment of the present application. Figure 2 for Figure 1 The electronic device 10 is a schematic diagram of a structure in another state. The electronic device 10 includes a first body 100 , a second body 200 , a first antenna 310 and a second antenna 320 .

[0028] The first body 100 and the second body 200 can be unfolded away from each other so that the electronic device can be in an unfolded state; or the first body and the second body can be folded toward each other so that the electronic device 10 can be in an overlapping state. Figure 1 As shown, the electronic device 10 may be in an unfolded state where the first body 100 and the second body 200 are relatively unfolded; Figure 2As shown, the electronic device 10 may be in an overlapping state where at least part of the second body 200 and the first body 100 overlap each other. Among them, the first body 100 and the second body 200 may be a thin plate or sheet-like structure, or a hollow frame structure. The first body 100 and the second body 200 may provide support for the electronic devices in the electronic device 10 so as to install the electronic devices in the electronic device 10 together. For example, electronic devices such as a camera, a receiver, a circuit board provided with a radio frequency circuit such as a feed source (such as the circuit board 600 described below), and a power supply (such as the power supply 700 described below) in the electronic device 10 can be installed on the first body 100 and the second body 200 for fixing.

[0029] The first antenna 310 is disposed on the first body 100. The first antenna 310 includes a first radiator 311, a first feed source 312 and a ground return structure 303. The first radiator 311 includes a first free end 3111, a first feed point 3112 and a second free end 3113 arranged in sequence. The first free end 3111 and the second free end 3113 are not electrically connected to the ground system 350. One end of the ground return structure 303 is electrically connected between the first feed point 3112 and the first feed source 312, and the other end of the ground return structure 303 is grounded. The ground system 350 is a plane or structure with zero electric potential. The ground system 350 can form a common ground for electronic equipment. The ground system 350 can be formed by a conductor, a printed circuit or a metal printed layer in the electronic device 10. The first feed source 312 is electrically connected to the first feed point 3112, such as Figure 1 and Figure 2 As shown, in the unfolded state or the overlapping state, the first feed source 312 can excite the first radiator 311 to generate a first resonance mode and support wireless signals of the first frequency band. The resonance current formed by the first resonance mode on the first radiator 311 can flow through the first feeding point 3112 toward the first free end 3111 and the second free end 3113 respectively, so that the first radiator 311 can radiate signals outward in the opening area where the two free ends are located (the free ends are not connected to other conductor structures, which is equivalent to forming an opening area). The first radiator 311 can have two radiation openings, which can maximize the radiation capacity of the first radiator 311 and the two radiation openings, so that the first antenna 310 has better radiation performance when transmitting and receiving wireless signals of the first frequency band.

[0030] It can be understood that the absolute value of the difference between the first distance between the first feeding point 3112 and the first free end 3111 and the second distance between the first feeding point 3112 and the second free end 3113 is less than or equal to half of the length of the branch between the first free end 3111 and the second free end 3113, so that there is a certain distance between the first feeding point 3112 and both the first free end 3111 and the second free end 3113, and the first radiator 311 is more likely to form two radiation openings. For example, the absolute value of the difference between the first distance and the second distance may be less than one-fourth of the length of the branch of the first radiator 311, and the first feeding point 3112 may be located in the middle area of ​​the first radiator 311. It should be noted that the first distance is the length of the branch between the first feeding point 3112 and the first free end 3111 on the first radiator 311, and the second distance is the length of the branch between the first feeding point 3112 and the second free end 3113 on the first radiator 311. The so-called branch length is the length of the radiator in the extension direction. If the radiator has a bending area, it is the total length of the radiator in multiple extension directions.

[0031] The second antenna 320 is disposed on the second body 200. The second antenna 320 includes a second radiator 321 and a second feed source 322. The second radiator 321 includes a first grounding end 3211, a second feed point 3212 and a third free end 3213 arranged in sequence. The first grounding end 3211 is electrically connected to the ground system 350 and is grounded. The third free end 3213 is not electrically connected to the ground system 350. The second radiator 321 can form a radiation opening. Figure 1 As shown, in the unfolded state, the second feed source 322 is electrically connected to the second feed point 3212, and the second feed source 322 can excite the second radiator 321 to support wireless signals of the second frequency band. Figure 2 As shown, in the overlapping state, at least a portion of the second radiator 321 overlaps with the first radiator 311, the second feed source 322 and the second feeding point 3212 are in an electrically disconnected state, and the second feed source 322 cannot provide an excitation signal to the second radiator 321. At this time, under the excitation of the first feed source 312, the resonant current on the first radiator 311 can be electromagnetically coupled to the second radiator 321, so that the second radiator 321 can be electromagnetically coupled to the first radiator 311 and support wireless signals in the third frequency band.

[0032] It can be understood that electromagnetic coupling, also known as capacitive coupling, means that when an electric field is generated between two radiators, the signal on one radiator can be transmitted to the other radiator through the electric field, so that the two radiators can also achieve electrical signal conduction without direct contact or direct connection. In the embodiment of the present application, in the overlapping state, at least part of the second radiator 321 overlaps with the first radiator 311, and the two radiators are close to each other so that the two radiators can be electromagnetically coupled, and in the electromagnetic coupling state, the second radiator 321 with one radiation opening is different from the first radiator 311 with two radiation openings, and the second radiator 321 has less adverse effect on the frequency of the first frequency band supported by the first radiator 311, and the second radiator 321 is not easy to affect the radiation performance of the first radiator 311. Moreover, when supporting wireless signals of the same frequency band, the branch length of the second radiator 321 can be shorter than the branch length of the first radiator 311, and the second radiator 321 is easier to realize miniaturization design.

[0033] It can be understood that, in the unfolded state, the first radiator 311 is relatively unfolded with the first body 100, the second body 200, and the second radiator 321 on the second body 200, the distance between the first radiator 311 and the second radiator 321 is relatively far, and the mutual interference between the first radiator 311 and the second radiator 321 is relatively small. At this time, the frequency range of the first frequency band supported by the first radiator 311 can be separated from the frequency range of the second frequency band supported by the second radiator 321, the first radiator 311 and the second radiator 321 can support wireless signals of different frequency bands, and the electronic device 10 can support at least two wireless signals of different frequency bands under the action of the first antenna 310 and the second antenna 320, which can improve the application scenarios of the electronic device 10. Of course, the frequency range of the first frequency band may also overlap at least partially with the frequency range of the second frequency band. In the unfolded state, the first radiator 311 and the second radiator 321 may support the same or similar wireless signals. Since the distance between the two radiators is relatively far, the first radiator 311 and the second radiator 321 are not easy to interfere with each other. When the two support the same frequency band, the first antenna 310 and the second antenna 320 may form a multiple-input multiple-output transmission system (Multiple-Input Multiple-Output, referred to as MIMO) system. For example, the first frequency band and the second frequency band may both be the N28 frequency band (703MHz to 803MHz) or the B28 frequency band (703MHz to 803MHz), and the first antenna 310 and the second antenna 320 may be low-frequency N28 / B28 antennas.

[0034] It can be understood that, in the overlapping state, the frequency range of the third frequency band supported by the second radiator 321 electromagnetically coupled with the first radiator 311 can overlap with the frequency range of the first frequency band supported by the first radiator 311. At this time, the first radiator 311 and the second radiator 321 are electromagnetically coupled and support wireless signals of the same frequency. Under the action of the two radiators, the antenna performance of the electronic device 10 supporting the first frequency band (or the third frequency band) is better. Of course, in the overlapping state, the absolute value of the difference between the center frequency of the third frequency band supported by the second radiator 321 and the center frequency of the first frequency band can be between 30MHz and 50MHz. At this time, the third frequency band supported by the second radiator 321 has an improvement effect on the antenna efficiency of the first frequency band supported by the first radiator 311, and the antenna performance of the electronic device 10 supporting the first frequency band is also better.

[0035] In the electronic device 10 of the embodiment of the present application, in the unfolded state, the first antenna 310 and the second antenna 320 can work independently and each support a corresponding frequency band; in the overlapping state, the second radiator 321 can be electromagnetically coupled with the first radiator 311 and support wireless signals of the third frequency band, so that the first radiator 311 and the second radiator 321 can be reused, the utilization rate of the first radiator 311 and the second radiator 321 in different scenarios is higher, and the application scenarios of the electronic device 10 are wider. At the same time, the first radiator 311 includes a first free end 3111, a first feeding point 3112 and a second free end 3113 arranged in sequence. The first radiator 311 has two free ends. The ground return structure 303 and the first feed source 312 are electrically connected to the first radiator 311 through the same first feeding point 3112. In the unfolded state and the overlapping state, the resonant current generated on the first radiator 311 passes through the ground return structure 303 and is then fed into the first radiator 311, so that it can flow more fully toward the two free ends on the first radiator 311 and form two radiation openings, so that The antenna efficiency of the first frequency band supported by the first radiator 311 is high; the second radiator 321 includes a first grounding end 3211, a second feeding point 3212 and a third free end 3213 arranged in sequence, and the second radiator 321 has a free end and can form a radiation opening, so that the radiation structure of the second radiator 321 is different from that of the first radiator 311, and the second radiator 321 has a small adverse effect on the frequency range of the first frequency band supported by the first radiator 311 in the overlapping state, and the second radiator 321 is not easy to affect the radiation performance of the first radiator 311. Based on this, the electronic device 10 of the embodiment of the present application has a high antenna efficiency of the first antenna 310 in both the unfolded state and the overlapping state, and the first antenna 310 can have better performance, so that the present application can take into account the antenna performance of the first antenna 310 in both the unfolded state and the overlapping state.

[0036] Among them, please refer to Figure 3 , Figure 3 The second structural diagram of the electronic device 10 provided in the embodiment of the present application is as follows: The ground return structure 303 includes a first tuning circuit 313 , and the first antenna 310 may further include a first tuning circuit 313 .

[0037] One end of the first tuning circuit 313 is electrically connected between the first feed source 312 and the first feeding point 3112, and the other end of the first tuning circuit 313 is electrically connected to the ground system 350 to achieve grounding. At this time, the first tuning circuit 313 and the first feed source 312 can be electrically connected to the first radiator 311 through the same first feeding point 3112. The resonant current generated by the excitation of the first feed source 312 can be fully fed to the first free end 3111 and the second free end 3113 to form two radiation openings after being fed into the first radiator 311 through the first tuning circuit 313, so as to better exert the radiation performance of the first radiator 311 and the two radiation openings. For comparison, please refer to Figure 4 , Figure 4 is a structural schematic diagram of an electronic device 20 of the related art, Figure 4 One end of the first tuning circuit 23 is electrically connected between the first feeding point and the first free end of the first radiator 21 but not electrically connected between the first feeding point and the first feed source 22. At this time, the resonant current generated by the excitation of the first feed source 22 can flow back to the ground through the first tuning circuit 23 during the process of flowing toward the first free end, so that the resonant current cannot fully flow to the first free end. Therefore, the radiation capacity of the first radiator 21 in the related technology is lower than the radiation performance of the first radiator 311 of the present application, and the radiation performance of the first radiator 311 of the embodiment of the present application is better.

[0038] For example, see Figure 5 , Figure 5 for Figure 3 The electronic device 10 shown is Figure 4 The antenna efficiency curve comparison diagram of the electronic device 20 is shown. Figure 5The curves S1 and S2 shown are respectively the radiation efficiency curve and the system efficiency curve of the first antenna 310 of the present application, wherein the first tuning circuit 313 and the first feed source 312 of the first antenna 310 are electrically connected to the first radiator 311 through the same first feed point 3112; the curves S3 and S4 are respectively the radiation efficiency curve and the system efficiency curve of the first antenna of the electronic device 20 of the related art, wherein one end of the first tuning circuit 23 of the first antenna is electrically connected between the first feed point and the first free end but not electrically connected between the first feed point and the first feed source 22. By comparing the curves S1 to S4, it can be seen that the radiation efficiency of the first antenna 310 of the present application is higher than that of the first antenna of the related art. For example, the antenna efficiency of the first antenna 310 of the present application supporting the B28 frequency band is improved by about 0.7dB compared with the antenna efficiency of the first antenna of the related art supporting the B28 frequency band. At the same time, it can be seen from curves S1 to S4 that the bandwidth of the first frequency band supported by the first antenna 310 of the present application is faster than the bandwidth of the first antenna of the related technology, and thus the bandwidth performance of the first antenna 310 of the present application is also better.

[0039] It is understandable that the first tuning circuit 313 of the present application can adjust the frequency range of the first frequency band. For example, when the electronic device 10 switches from the unfolded state to the overlapped state, the first frequency band supported by the first radiator 311 under the stimulation of the first feed source 312 may produce a small frequency deviation due to the change of the antenna environment. At this time, the first tuning circuit 313 can adjust the frequency after the frequency deviation so that the first radiator 311 still supports the first frequency band in the overlapped state, so that the first tuning circuit 313 can ensure that the frequency band of the wireless signal supported by the first radiator 311 remains the same in the unfolded state and the overlapped state.

[0040] It is understandable that the first tuning circuit 313 can also adjust the electrical length of the first radiator 311 so that the first radiator 311 can support the preset first frequency band in the unfolded state. The so-called electrical length refers to the equivalent length of the radiator when radiating a signal, or the equivalent length required for electromagnetic wave transmission in the radiation structure. The electrical length of the radiator can be greater than, less than or equal to its branch length. The radiator can change its electrical length by electrically connecting the first tuning circuit 313 with different impedances so that the first radiator 311 can support the first frequency band.

[0041] It is understandable that the first tuning circuit 313 can also adjust the impedance matching of the first excitation signal provided by the first feed source 312. When the first antenna 310 is in an impedance matching state, the first antenna 310 can be in a resonant state and support wireless signals.

[0042] It is understandable that the first tuning circuit 313 may include, but is not limited to, an indefinite number of inductors, capacitors, resistors, switches, or even zero-ohm inductors. For example, when the first frequency band is a low-frequency band (frequency is less than 1000 MHz) so that the first antenna 310 is a low-frequency antenna, the first tuning circuit 313 may be an inductor element with an inductance value less than or equal to 3 nanohenries.

[0043] It should be noted that, in addition to the first tuning circuit 313, the ground return structure 303 of the present application may also be other structures or may also include other structures (such as other structures formed by an indefinite number of inductors, capacitors, resistors, switches, or even zero-ohm inductors), and the present application does not limit this.

[0044] The first antenna 310 of the embodiment of the present application is provided with a first tuning circuit 313, and the first tuning circuit 313 and the first feed source 312 are electrically connected to the first radiator 311 through the same first feeding point 3112, so that under the action of the first feed source 312 and the first tuning circuit 313, the antenna efficiency of the first radiator 311 supporting the wireless signal of the first frequency band is higher and the bandwidth is wider. At the same time, the first tuning circuit 313 can also adjust the frequency range of the wireless signal supported by the first radiator 311, so that the first radiator 311 can support the first frequency band in both the overlapping state and the unfolded state, and the antenna performance of the first radiator 311 supporting the wireless signal of the first frequency band is better.

[0045] Please refer again to Figure 3 , the second antenna 320 may include a second tuning circuit 323. One end of the second tuning circuit 323 is electrically connected between the second feeding point 3212 and the second feed source 322, and the other end of the second tuning circuit 323 is grounded. In the unfolded state, the second tuning circuit 323 is used to conduct the second feed source 322 and the second feeding point 3212, so that the second feed source 322 and the second feeding point 3212 are in an electrically connected state, at which time the second feed source 322 can excite the second radiator 321 to support wireless signals in the second frequency band. In the overlapping state, the second tuning circuit 323 is used to disconnect the second feed source 322 from the second feeding point 3212, the second feed source 322 and the second feeding point 3212 are in a disconnected state, the second feed source 322 cannot excite the second radiator 321, and the second radiator 321 can be electromagnetically coupled with the first radiator 311 under the action of the first feed source 312 and support wireless signals in the third frequency band.

[0046] It is understandable that the second tuning circuit 323 may include, but is not limited to, an indefinite number of inductors, capacitors, resistors, switches, and other components. For example, the second tuning circuit 323 may include a switching switch, one port of the switching switch is electrically connected to the second feeding point 3212, and the other port of the switching switch is electrically connected to the second feed source 322. The switching switch can connect the two ports to achieve a conductive connection between the second feed source 322 and the second feeding point 3212, or disconnect the two ports to achieve a disconnection between the second feed source 322 and the second feeding point 3212.

[0047] It is understandable that the second tuning circuit 323 can also use the passband and stopband characteristics to achieve the connection or disconnection between the second feed source 322 and the second feeding point 3212. For example, the second tuning circuit 323 can be equivalent to a path for the resonant current corresponding to the wireless signal of the second frequency band, and equivalent to an open circuit for the resonant current corresponding to the wireless signal of the third frequency band. The embodiment of the present application does not limit the specific structure of the second tuning circuit 323.

[0048] It is understandable that the second tuning circuit 323 can adjust the frequency range of at least one of the second frequency band and the third frequency band, so that the second radiator 321 can support the second frequency band or the third frequency band. The second tuning circuit 323 can also perform impedance matching adjustment on the excitation signal provided by the second feed source 322. The embodiment of the present application does not limit the function of the second tuning circuit 323.

[0049] The second tuning circuit 323 of the embodiment of the present application can control the connection or disconnection between the second feed source 322 and the second feeding point 3212, so that the second radiator 321 can support wireless signals of the second frequency band in the unfolded state and support wireless signals of the third frequency band in the overlapping state. The second tuning circuit 323 can improve the utilization rate of the second radiator 321 in different scenarios.

[0050] Among them, please refer to Figure 6 , Figure 6 This is a third structural diagram of the electronic device 10 provided in an embodiment of the present application. The first antenna 310 may further include a switching circuit 314 .

[0051] One end of the switching circuit 314 is electrically connected between the first feeding point 3112 and the first free end 3111, or one end of the switching circuit 314 is electrically connected between the first feeding point 3112 and the second free end 3113, and the other end of the switching circuit 314 is used for grounding, so that the first feed source 312 excites the first radiator 311 to support wireless signals in the fourth frequency band. The frequency range of the fourth frequency band is not completely the same as the frequency range of the first frequency band.

[0052] It can be understood that when the other end of the switching circuit 314 is electrically connected to the ground system 350 and grounded, the switching circuit 314 can change the electrical length of the first radiator 311 and thus change the frequency band of the wireless signal supported by the first radiator 311. For example, when the other end of the switching circuit 314 is disconnected from the electrical connection with the ground system 350, under the action of the first feed source 312 and the first tuning circuit 313, the first radiator 311 can support the wireless signal of the first frequency band; when the other end of the switching circuit 314 is electrically connected to the ground system 350, under the action of the first feed source 312, the first tuning circuit 313 and the switching circuit 314, the first radiator 311 can support the wireless signal of the fourth frequency band. The first radiator 311 of the present application can be applied to more scenarios. It should be noted that the connection or disconnection between the other end of the switching circuit 314 and the ground system 350 can be achieved by a switch or by a passband or stopband method, which will not be described in detail here.

[0053] It is understandable that the switching circuit 314 may include, but is not limited to, an indefinite number of capacitors, inductors, switches, etc. The switching circuit 314 may also include one or more switching branches, so that when the switching circuit 314 switches between different switching branches, the first radiator 311 can support wireless signals of the fourth frequency band in different frequency ranges.

[0054] The first antenna 310 of the embodiment of the present application includes a switching circuit 314. The switching circuit 314 can further expand the application scenarios of the first antenna 310, thereby further improving the utilization rate of the first radiator 311 in different scenarios.

[0055] Among them, please refer to Figure 7 , Figure 7 This is a fourth structural diagram of the electronic device 10 provided in the embodiment of the present application. The electronic device 10 may further include a third antenna 330 .

[0056] The third antenna 330 is disposed on the first body 100, and includes an electrically connected third radiator 331 and a third feed source 332. In the unfolded state or the overlapped state, the third feed source 332 can excite the third radiator 331 to support wireless signals of the fifth frequency band.

[0057] It can be understood that the third radiator 331 may include a second grounding end 3311, a third feeding point 3312 and a fourth free end 3313 arranged in sequence, the second grounding end 3311 is spaced apart from the first radiator 311 (e.g., the first free end 3111) and is electrically connected to the ground system 350 to achieve grounding, the fourth free end 3313 extends in a direction away from the second grounding end 3311 and the first radiator 311, the third feed source 332 is electrically connected to the third feeding point 3312, and the third radiator 331 may form a radiation opening. At this time, the third antenna 330 with a radiation opening located on the same first body 100 is different from the first antenna 310 with two radiation openings, and the fourth free end 3313 of the third radiator 331 is arranged away from the first radiator 311, so that it is not easy for the first radiator 311 and the third radiator 331 to interfere with each other. It should be noted that the third radiator 331 may also be in other radiation structure forms.

[0058] It can be understood that the frequency range of the fifth frequency band supported by the third antenna 330 can be the same as the frequency range of the first frequency band, or at least partially overlap, so that the third antenna 330 can support the same or similar wireless signals as the first antenna 310. The frequency range of the fifth frequency band can also be completely separated from the frequency range of the first frequency band, so that the third antenna 330 and the first antenna 310 support different wireless signals.

[0059] It can be understood that, in some embodiments, the third antenna 330 may also include a third tuning circuit, one end of the third tuning circuit is electrically connected between the third feed source 332 and the third feeding point 3312, and the other end of the third tuning circuit is grounded. The third tuning circuit can adjust the frequency range of the fifth frequency band supported by the third radiator 331, and the third tuning circuit can also perform impedance matching adjustment on the excitation signal provided by the third feed source 332.

[0060] Among them, please refer to Figure 8 , Figure 8 The fifth structural diagram of the electronic device 10 provided in the embodiment of the present application, the electronic device 10 may include a fourth antenna 340, and the fourth antenna 340 may include a fourth radiator 341 (excluding the fourth feed source 342 described below). The fourth radiator 341 is disposed on the second body 200 and forms a coupling gap with the second radiator 321.

[0061] In the unfolded state, the second feed source 322 is in an electrically connected state with the second radiator 321. The resonant current generated by the second feed source 322 exciting the second radiator 321 can be electromagnetically coupled to the fourth radiator 341 through the coupling gap. The fourth radiator 341 is electromagnetically coupled with the second radiator 321 so that the fourth radiator 341 can support wireless signals in the sixth frequency band. At this time, the fourth radiator 341 can serve as a parasitic branch of the second radiator 321, and the fourth radiator 341 can improve the antenna performance of the second radiator 321. Thus, in the unfolded state, the first antenna 310 can support wireless signals in the first frequency band (or the fourth frequency band), the second antenna 320 can support wireless signals in the second frequency band and can be electromagnetically coupled with the fourth radiator 341 so that the fourth radiator 341 can support wireless signals in the sixth frequency band, and the third antenna 330 can support wireless signals in the fifth frequency band.

[0062] In the overlapping state, at least part of the fourth radiator 341 overlaps with the third radiator 331, and the resonant current generated by the third feed source 332 exciting the third radiator 331 can be electromagnetically coupled to the fourth radiator 341. The fourth radiator 341 can be electromagnetically coupled to the third radiator 331 so that the fourth radiator 341 can support wireless signals in the seventh frequency band. At this time, the fourth radiator 341 can serve as a parasitic branch of the third radiator 331, and the fourth radiator 341 can improve the antenna performance of the third radiator 331. Thus, in the overlapping state, the first antenna 310 can support wireless signals in the first frequency band and can be electromagnetically coupled to the second radiator 321 so that the second radiator 321 supports wireless signals in the third frequency band, and the third antenna 330 can support wireless signals in the fifth frequency band and can be electromagnetically coupled to the fourth radiator 341 so that the fourth radiator 341 supports wireless signals in the seventh frequency band. It should be noted that, in the overlapping state, the second feed 322 and the second radiator 321 are disconnected, and the second radiator 321 is a parasitic branch of the first radiator 311. At this time, although the fourth radiator 341 is close to the second radiator 321, the second radiator 321, as a parasitic branch, is not easy to be electromagnetically coupled with the fourth radiator 341 again, so that in the overlapping state, compared with the electromagnetic coupling with the second radiator 321, the fourth radiator 341 is more easily electromagnetically coupled with the third radiator 331 to improve the antenna performance of the third radiator 331.

[0063] It can be understood that, in the unfolded state, the frequency range of the sixth frequency band supported by the electromagnetic coupling between the fourth radiator 341 and the second radiator 321 may at least partially overlap with the frequency range of the second frequency band supported by the second radiator 321, for example, the absolute value of the difference between the center frequency of the sixth frequency band and the center frequency of the second frequency band is between 30MHz and 50MHz. At this time, the fourth radiator 341 may support the same or similar frequency band as the second radiator 321, and the fourth radiator 341 may improve the antenna efficiency of the second radiator 321. Of course, the sixth frequency band may also be completely separated from the second frequency band, so that the fourth radiator 341 and the second radiator 321 can support wireless signals of different frequency bands, and the electronic device 10 can support wireless signals of more frequency bands. Similarly, in the overlapping state, the frequency range of the seventh frequency band supported by the electromagnetic coupling between the fourth radiator 341 and the third radiator 331 may at least partially overlap with the frequency range of the fifth frequency band supported by the third radiator 331, for example, the absolute value of the difference between the two may be between 30MHz and 50MHz. Alternatively, the seventh frequency band may be completely separated from the fifth frequency band.

[0064] It is understandable that, in the unfolded state, the frequency ranges of the first frequency band supported by the first antenna 310, the second frequency band supported by the second antenna 320, and the fifth frequency band supported by the third antenna 330 may be the same, so that the first antenna 310, the second antenna 320, and the third antenna 330 may form three MIMO antennas. For example, the first frequency band, the second frequency band, and the fifth frequency band are all N28 frequency bands or B28 frequency bands, and the first antenna 310, the second antenna 320, and the third antenna 330 may form three N28 antennas or B28 antennas. It should be noted that the above-mentioned first antenna 310 to the third antenna 330 may also support other frequency bands, such as but not limited to other low frequency bands, medium and high frequency bands, high frequency bands, or ultra-high frequency bands. In the overlapping state, when the frequency range of the third frequency band at least partially overlaps with the frequency range of the first frequency band, and the frequency range of the seventh frequency band at least partially overlaps with the frequency range of the fifth frequency band, the antenna system formed by the first antenna 310 and the second radiator 321 and the antenna system formed by the third antenna 330 and the fourth radiator 341 can also form or approximately form two MIMO antennas.

[0065] It can be understood that the fourth radiator 341 may include a third grounding end 3411 and a fifth free end 3412, the third grounding end 3411 and the second radiator 321 (for example, the third free end 3213) are spaced apart to form a coupling gap, the third grounding end 3411 is electrically connected to the ground system 350 to achieve grounding, and the fifth free end 3412 extends in a direction away from the third grounding end 3411 and the second radiator 321. It should be noted that the fourth radiator 341, the third radiator 331, and the second radiator 321 may also be other radiating structures, which are not limited here.

[0066] It can be understood that the minimum distance between the second ground end 3311 of the third radiator 331 and the first radiator 311 (for example, the first free end 3111) is greater than the minimum distance between the third ground end 3411 of the fourth radiator 341 and the second radiator 321 (for example, the third free end 3213), so that the distance between the third radiator 331 and the first radiator 311, both located on the first body 100, is farther, making it less likely for the first antenna 310 and the third antenna 330 to interfere with each other when working at the same time; the distance between the fourth radiator 341 and the second radiator 321, both located on the second body 200, is closer, and in the unfolded state, the fourth radiator 341 can be electromagnetically coupled with the second radiator 321 under the action of the second feed source 322, thereby improving the antenna performance of the second radiator 321.

[0067] The electronic device 10 of the embodiment of the present application includes a first antenna 310 to a fourth antenna 340. In the unfolded state, the fourth radiator 341 of the fourth antenna 340 can be electromagnetically coupled with the second radiator 321. In the overlapping state, the fourth radiator 341 can be electromagnetically coupled with the third radiator 331. The fourth radiator 341 has different antenna shapes in different scenarios of the electronic device 10, and the utilization rate of the fourth radiator 341 in different scenarios of the electronic device 10 is higher.

[0068] Please combine Figure 8 Please also refer to Fig. 9 , Fig. 9 This is a sixth structural diagram of the electronic device 10 provided in an embodiment of the present application. The fourth antenna 340 may further include a fourth feed source 342. The fourth feed source 342 may be electrically connected to or disconnected from the fourth radiator 341.

[0069] The fourth radiator 341 further includes a fourth feeding point 3413 disposed between the third ground end 3411 and the fifth free end 3412 , and the fourth feed source 342 may be electrically connected to the fourth feeding point 3413 , or the fourth feed source 342 may be disconnected from the fourth feeding point 3413 .

[0070] In the unfolded state, the fourth feed source 342 is electrically connected to the fourth feed point 3413 and excites the fourth radiator 341 to support wireless signals in the eighth frequency band. At this time, the first antenna 310 can support wireless signals in the first frequency band (or the fourth frequency band), the second antenna 320 can support wireless signals in the second frequency band, the third antenna 330 can support wireless signals in the fifth frequency band, and the fourth antenna 340 can support wireless signals in the eighth frequency band. If the frequency ranges of the first frequency band, the second frequency band, the fifth frequency band, and the eighth frequency band are the same, the first antenna 310 to the fourth antenna 340 can form four MIMO antennas. Of course, the frequency range of at least one of the first frequency band, the second frequency band, the fifth frequency band, and the eighth frequency band may not be completely the same as the frequency ranges of the other frequencies.

[0071] In the overlapping state, the fourth feed source 342 is disconnected from the fourth feed point 3413, at least part of the fourth radiator 341 overlaps with the third radiator 331, and the fourth radiator 341 is electromagnetically coupled to the third radiator 331 and supports wireless signals in the seventh frequency band. At this time, the second feed source 322 is also disconnected from the second radiator 321, and the second radiator 321 is electromagnetically coupled to the first radiator 311 and supports wireless signals in the third frequency band.

[0072] It can be understood that in the embodiment of the present application, considering that the second antenna 320 and the fourth antenna 340 work independently in the unfolded state, the fourth radiator 341 does not need to be electromagnetically coupled to the second radiator 321. At this time, the distance between the third ground end 3411 of the fourth radiator 341 and the third free end 3213 of the second radiator 321 can be larger, for example Fig. 9 The distance between the third grounding end 3411 and the third free end 3213 is greater than Figure 8 The distance between the third grounding end 3411 and the third free end 3213 (it should be noted that, Fig. 9 , it is indicated that there is a branch on the side of the third ground end 3411 facing the second radiator 321, and the branch is used to indicate that there is a certain distance between the fourth radiator 341 and the second radiator 321; similarly, Figures 6 to 9 In the figure, there is a branch on the side of the second ground end 3311 of the third radiator 331 facing the first radiator 311, which is also used to indicate that there is a certain distance between the third radiator 331 and the first radiator 311. No coupling gap may be formed between the fourth radiator 341 and the second radiator 321 to avoid electromagnetic coupling between the two radiators when they are in the unfolded state.

[0073] It should be noted that the electronic device 10 of the embodiment of the present application can also take into account Figure 8 and Fig. 9For example, the fourth antenna 340 includes a fourth radiator 341 and a fourth feed source 342, and a coupling gap is formed between the fourth radiator 341 and the second radiator 321. In the overlapping state, at least part of the fourth radiator 341 overlaps with the third radiator 331; at this time, in the unfolded state, if the fourth antenna 340 is required to support wireless signals in the eighth frequency band, the fourth feed source 342 and the fourth radiator 341 can be controlled to be in an electrically connected state and stimulate the fourth radiator 341 to support wireless signals in the eighth frequency band; if the fourth antenna 340 is required to support wireless signals in the sixth frequency band, the fourth feed source 342 and the fourth radiator 341 can be controlled to be in an electrically disconnected state, and the fourth radiator 341 can be electromagnetically coupled with the second radiator 321 and support wireless signals in the sixth frequency band.

[0074] The fourth antenna 340 of the embodiment of the present application includes a fourth feed source 342 and a fourth radiator 341. In the unfolded state, the electronic device 10 can form four MIMO antennas, and the antenna performance of the electronic device 10 is relatively good; in the overlapping state, the electronic device 10 can form two MIMO antennas and the second radiator 321 can be used as a parasitic branch of the first radiator 311, and the fourth radiator 341 can be used as a parasitic branch of the third radiator 331 to improve the antenna efficiency of the two MIMO antennas; based on this, the electronic device 10 of the present application can take into account the antenna performance in the unfolded state and the folded state. At the same time, the four antennas can enable the electronic device 10 to be suitable for different scenarios, and the application range of the electronic device 10 is wider.

[0075] Among them, Figure 8 and Fig. 9 As shown, the fourth antenna 340 may further include a fourth tuning circuit 343, one end of the fourth tuning circuit 343 is electrically connected to the fourth radiator 341, and the other end of the fourth tuning circuit 343 is grounded. When the fourth antenna 340 includes a fourth feed source 342, one end of the fourth tuning circuit 343 may be electrically connected between the fourth feed source 342 and the fourth feeding point 3413. The fourth tuning circuit 343 can frequency adjust the frequency band of the wireless signal supported by the fourth radiator 341; the fourth tuning circuit 343 can also perform impedance matching adjustment on the excitation signal provided by the fourth feed source 342; the fourth tuning circuit 343 can also conduct the electrical connection between the fourth feed source 342 and the fourth feeding point 3413 so that the fourth feed source 342 and the fourth feeding point 3413 are in an electrically connected state, or the fourth tuning circuit 343 can also disconnect the electrical connection between the fourth feed source 342 and the fourth feeding point 3413 so that the fourth feed source 342 and the fourth feeding point 3413 are in a disconnected state.

[0076] Based on the structure of the electronic device 10, please refer to Fig.10 , Fig.10The seventh structural diagram of the electronic device 10 provided in the embodiment of the present application is as follows: The first body 100 may further include a first frame 110 and a second frame 120 connected by bending, and the second body 200 may include a third frame 210 and a fourth frame 220 connected by bending.

[0077] The first frame 110 to the fourth frame 220 can be made of a conductive material and have a certain rigidity to provide support for the electronic devices in the electronic device 10. Of course, the first frame 110 to the fourth frame 220 can also be made of other non-conductive materials. Among them, the first frame 110 and the second frame 120 are the outer frames of the first body 100, and the third frame 210 and the fourth frame 220 are the outer frames of the second body 200. The first frame 110 and the third frame 210 are arranged opposite to each other, and the second frame 120 and the fourth frame 220 can be located on the same side of the center of the electronic device 10, and the length of the first frame 110 and the third frame 210 is greater than the length of the second frame 120 or the fourth frame 220. For example, the electronic device 10 is in a vertical posture (such as Fig.10 ), the first frame 110 and the third frame 210 are both long side frames of the electronic device 10, and the second frame 120 and the fourth frame 220 are both bottom frames of the electronic device 10. In the overlapping state, at least a portion of the third frame 210 overlaps with the first frame 110, and at least a portion of the fourth frame 220 overlaps with the second frame 120.

[0078] It should be noted that the first body 100 and the second body 200 may also include other frame structures. For example, when the first body 100 and the second body 200 are rectangular structures, Fig.10 As shown, the first body 100 may further include a fifth frame 130 disposed opposite to the second frame 120 , and the second body 200 may further include a sixth frame 230 disposed opposite to the fourth frame 220 .

[0079] It is understandable that if Fig.10As shown, part of the first radiator 311 is arranged on the first frame 110, and another part of the first radiator 311 is arranged on the second frame 120, and the first radiator 311 is a bent structure. Part of the second radiator 321 is arranged on the third frame 210, and another part of the second radiator 321 is arranged on the fourth frame 220, and the second radiator 321 is also a bent structure. The third radiator 331 is arranged on the first frame 110, and the third radiator 331 can be arranged on the first frame 110 together with part of the first radiator 311. The fourth radiator 341 is arranged on the third frame 210, and the fourth radiator 341 can be arranged on the third frame 210 together with part of the second radiator 321. It should be noted that "arranged on" here can mean that the radiator is connected to the corresponding frame and the orthographic projection of the radiator on the display surface of the electronic device 10 is located on the orthographic projection of the frame on the display surface, or it can mean that the radiator is part of the corresponding frame. For example, when the first frame 110 to the fourth frame 220 are made of a conductive material, a gap can be opened on the corresponding frame to form one or more metal branches, so that at least one radiator among the first radiator 311 to the fourth radiator 341 can include at least one metal branch and be formed on the frame, so that the electronic device 10 reuses the frame as a radiation structure, and the electronic device 10 can achieve a miniaturized design. At this time, the gap on the frame can be filled with a non-conductive material to increase the structural strength of the frame. Of course, at least one of the first radiator 311 to the fourth radiator 341 can also be, but not limited to, a flexible circuit board radiator, a printed circuit board radiator, a laser direct forming radiator, a silver paste spraying radiator and other structures, and the embodiment of the present application does not limit the specific structure of the four radiators.

[0080] It is understandable that the first free end 3111 of the first radiator 311 may be disposed on the first frame 110 and the second free end 3113 may be disposed on the second frame 120, or the second free end 3113 may be disposed on the first frame 110 and the first free end 3111 may be disposed on the second frame 120. Furthermore, when the first frame 110 is a long side frame of the electronic device 10, the length of the branch of the first radiator 311 disposed on the first frame 110 may be greater than the length of the branch disposed on the second frame 120.

[0081] It can be understood that the second grounding end 3311 of the third radiator 331 is spaced apart from and grounded to the first radiator 311 (the first radiator 311 is arranged at one end of the first frame 110), and the fourth free end 3313 of the third radiator 331 extends in a direction away from the second grounding end 3311 and the first radiator 311. Compared with the fourth free end 3313, the second grounding end 3311 is closer to the first radiator 311, so that the interference between the third radiator 331 and the first radiator 311 is smaller.

[0082] It can be understood that the third ground end 3411 of the fourth radiator 341 is spaced apart from the second radiator 321 and is grounded, and the fifth free end 3412 extends in a direction away from the third ground end 3411 and the second radiator 321 .

[0083] It is understandable that if Fig.10 As shown, the first ground end 3211 of the second radiator 321 can be arranged on the fourth frame 220 and the third free end 3213 can be arranged on the third frame 210, so that the opening direction of the second radiator 321 (the extension direction of the third free end 3213) of the electronic device 10 in the vertical posture can be oriented toward the sky (i.e. Fig.10 At this time, the second radiator 321 can fully excite the longitudinal mode (the mode in which the resonant current flows along the extension direction of the long side frame of the electronic device 10) under the excitation of the second feed source 322, and the antenna efficiency of the second antenna 320 is relatively high. At this time, the third grounding end 3411 of the fourth radiator 341 is adjacent to the third free end 3213 and is arranged at intervals.

[0084] It is understandable that, combined with Fig.10 Please refer to Fig.11 , Fig.11 The eighth structural diagram of the electronic device 10 provided in the embodiment of the present application. The first grounding end 3211 of the second radiator 321 can also be arranged on the third frame 210 and the third free end 3213 is arranged on the fourth frame 220, so that the opening direction of the second radiator 321 (the extension direction of the third free end 3213) of the electronic device 10 in the vertical posture can be away from the sky side (i.e. Fig.10 The opening shown is facing downwards). At this time, the third free end 3213 of the second radiator 321 is located at the bottom frame of the second body 200, which is not easy to be held by a human hand, so that the second radiator 321 is less affected by the holding state of a human hand. It can be understood that at this time, the third grounding end 3411 of the fourth radiator 341 is adjacent to the first grounding end 3211 of the second radiator 321, and the coupling strength between the two is greater than that of Fig.10 The scheme shown is relatively weak, but the fourth radiator 341 can also be electromagnetically coupled with the second radiator 321; of course, at this time, the fourth feed source 342 can be controlled to be electrically connected to the fourth radiator 341 in the unfolded state and stimulate the fourth radiator 341 to support the wireless signal of the eighth frequency band; or, the third grounding end 3411 and the fifth free end 3412 of the fourth radiator 341 can be swapped so that the fifth free end 3412 is close to the first grounding end 3211 to ensure the electromagnetic coupling strength between the fourth radiator 341 and the second radiator 321.

[0085] Please refer again to Fig.10 and Fig.11The first body 100 may further include a first middle plate 140, and the second body 200 may further include a second middle plate 240. The first middle plate 140 and the second middle plate 240 may be thin plates or thin sheet-like structures to provide support for electronic devices or functional components in the electronic device 10. The first frame 110, the second frame 120, and the fifth frame 130 may be arranged around the edge of the first middle plate 140, and the third frame 210, the fourth frame 220, and the sixth frame 230 may be arranged around the edge of the second middle plate 240.

[0086] It can be understood that at least one of the first middle plate 140 and the second middle plate 240 can be provided with a ground system 350, so that the first radiator 311 and the third radiator 331 arranged on the first body 100 can be electrically connected to the ground system 350 on the first body 100 to achieve grounding, and the second radiator 321 and the fourth radiator 341 arranged on the second body 200 can be electrically connected to the ground system 350 on the second body 200 to achieve grounding.

[0087] Please refer again Figure 10 to Figure 11 The electronic device 10 may further include a hinge structure 400 , a flexible display screen 500 , a circuit board 600 , and a power supply 700 .

[0088] One end of the hinge structure 400 is connected to the first body 100, and the other end of the hinge is connected to the second body 200. The hinge structure 400 can drive the first body 100 and the second body 200 to move so that the first body 100 and the second body 200 are close to each other to be in an overlapping state, or drive the first body 100 and the second body 200 away from each other to be in an unfolded state.

[0089] The flexible display screen 500 can form a display surface of the electronic device 10 for displaying information such as images and texts. The flexible display screen 500 can include a display screen of a type such as a liquid crystal display (LCD) or an organic light-emitting diode (OLED) display screen. The flexible display screen 500 can be connected to the first body 100 and the second body 200, and can be folded as the first body 100 and the second body 200 are folded. For example, one end of the flexible display screen 500 can be connected to the first body 100, and the other end of the flexible display screen 500 can be connected to the second body 200. When the first body 100 and the second body 200 are in an unfolded state, the flexible display screen 500 can be unfolded with the first body 100 and the second body 200 so that the two ends of the flexible display screen 500 can be in the same plane. When the first body 100 and the second body 200 are in an overlapping state, the flexible display screen 500 can be folded as the first body 100 and the second body 200 are folded, so that the two ends of the flexible display screen 500 can be close to each other or completely close to each other and folded together.

[0090] The circuit board 600 can be mounted on the first body 100 or the second body 200, and the circuit board 600 can be the main board of the electronic device 10. A processor can be integrated on the circuit board 600, and one or more functional components such as an earphone interface, an acceleration sensor, a gyroscope, and a motor can also be integrated. Among them, the flexible display screen 500 and the first feed source 312 to the fourth feed source 342 can be set on the circuit board 600 to be controlled by the processor on the circuit board 600.

[0091] The power supply 700 may be mounted on the first body 100 or the second body 200. At the same time, the power supply 700 may be electrically connected to the circuit board 600 so that the power supply 700 supplies power to the electronic device 10. A power management circuit may be provided on the circuit board 600. The power management circuit is used to distribute the voltage provided by the power supply 700 to various electronic devices in the electronic device 10.

[0092] It can be understood that the above is only an illustrative example of the electronic device 10. The electronic device 10 of the embodiment of the present application may also include components such as a camera, a sensor, and an acoustic-to-electric conversion device. These components can be found in the description of the relevant technology and will not be repeated here.

[0093] It should be understood that in the description of this application, terms such as "first", "second", "third", "fourth", etc. are only used to distinguish similar objects and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated.

[0094] The electronic device provided by the embodiment of the present application is described in detail above. The principle and implementation method of the present application are described in detail using specific examples herein, and the description of the above embodiments is only used to help understand the present application. At the same time, for those skilled in the art, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as limiting the present application.

Claims

1. An electronic device, characterized in that: include: first ontology; a second body, movable relative to the first body, so that the electronic device is in an overlapping state where at least a portion of the second body overlaps the first body, or in an unfolded state where the first body and the second body are relatively unfolded; A first antenna is provided on the first body, the first antenna comprises a first feed source, a first radiator and a ground return structure, the first radiator comprises a first free end, a first feeding point and a second free end arranged in sequence, the first feed source is electrically connected to the first feeding point, one end of the ground return structure is electrically connected between the first feeding point and the first feed source, and the other end is grounded; a second antenna is provided on the second body, the second antenna comprises a second feed source and a second radiator, the second radiator comprises a first ground end, a second feeding point and a third free end arranged in sequence; wherein, In the unfolded state, the first feed source excites the first radiator to support wireless signals of a first frequency band, and the second feed source is electrically connected to the second feed point to excite the second radiator to support wireless signals of a second frequency band; In the overlapping state, at least a portion of the second radiator overlaps with the first radiator, the first feed source excites the first radiator to support wireless signals in the first frequency band, the second feed source and the second feeding point are in a disconnected state, and the second radiator is electromagnetically coupled to the first radiator and supports wireless signals in a third frequency band.

2. The electronic device according to claim 1, characterized in that: The frequency range of the third frequency band overlaps with the frequency range of the first frequency band; or, the absolute value of the difference between the center frequency of the third frequency band and the center frequency of the first frequency band is between 30 MHz and 50 MHz.

3. The electronic device according to claim 1, characterized in that: The ground return structure comprises: A first tuning circuit, one end of the first tuning circuit is electrically connected between the first feed source and the first feeding point, the other end of the first tuning circuit is grounded, and the first tuning circuit is used to adjust the frequency range of the first frequency band.

4. The electronic device according to claim 1, characterized in that: The second antenna further includes: A second tuning circuit, one end of the second tuning circuit is electrically connected between the second feeding point and the second feed source, and the other end of the second tuning circuit is grounded; wherein, In the unfolded state, the second tuning circuit is used to conduct the second feed source and the second feeding point, so that the second feed source and the second feeding point are in the electrically connected state; In the overlapping state, the second tuning circuit is used to disconnect the second feed source from the second feeding point so that the second feed source and the second feeding point are in the disconnected state.

5. The electronic device according to claim 3, characterized in that: The first antenna also includes: A switching circuit, one end of which is electrically connected between the first feeding point and the first free end or between the first feeding point and the second free end, and the other end of which is grounded, so that the first feed source excites the first radiator to support wireless signals in a fourth frequency band, which is different from the first frequency band.

6. The electronic device according to any one of claims 1 to 5, characterized in that: An absolute value of a difference between a distance between the first feeding point and the first free end and a distance between the first feeding point and the second free end is less than or equal to half of a branch length between the first free end and the second free end.

7. The electronic device according to any one of claims 1 to 5, characterized in that: The frequency range of the first frequency band is spaced from the frequency range of the second frequency band; or, the frequency range of the first frequency band is at least partially overlapped with the frequency range of the second frequency band.

8. The electronic device according to any one of claims 1 to 5, characterized in that: The first body includes a first frame and a second frame that are bent and connected, the second body includes a third frame and a fourth frame that are bent and connected, the first frame and the third frame are arranged opposite to each other and at least partially overlap in the overlapping state, the second frame and the fourth frame at least partially overlap in the overlapping state, and the length of the first frame and the third frame is greater than the length of the second frame or the fourth frame; wherein A portion of the first radiator is disposed on the first frame, and another portion of the first radiator is disposed on the second frame; The first grounding end is disposed on the fourth frame and the third free end is disposed on the third frame; or, the first grounding end is disposed on the third frame and the third free end is disposed on the fourth frame.

9. The electronic device according to any one of claims 1 to 5, characterized in that: The electronic device further comprises: A third antenna is disposed on the first body, the third antenna comprises a third feed source and a third radiator which are electrically connected, and in the unfolded state or the overlapping state, the third feed source excites the third radiator to support wireless signals of a fifth frequency band; and The fourth radiator is disposed on the second body, and in the overlapping state, at least a portion of the fourth radiator overlaps with the third radiator.

10. The electronic device according to claim 9, characterized in that: The electronic device further comprises: The fourth antenna comprises the fourth radiator, wherein a coupling gap is formed between the fourth radiator and the second radiator; wherein: In the unfolded state, the fourth radiator is electromagnetically coupled to the second radiator and supports wireless signals in a sixth frequency band; In the overlapping state, the fourth radiator is electromagnetically coupled to the third radiator and supports wireless signals in the seventh frequency band.

11. The electronic device according to claim 10, characterized in that: The frequency ranges of the first frequency band, the second frequency band and the fifth frequency band are the same, and the frequency ranges of the sixth frequency band and the second frequency band at least partially overlap; The frequency range of the third frequency band at least partially overlaps with that of the first frequency band, and the frequency range of the seventh frequency band at least partially overlaps with that of the fifth frequency band.

12. The electronic device according to claim 10, characterized in that: The first frequency band, the second frequency band and the fifth frequency band are all N28 frequency band or B28 frequency band.

13. The electronic device according to claim 10, characterized in that: The third radiator comprises a second grounding end, a third feeding point and a fourth free end arranged in sequence, the second grounding end is spaced apart from the first radiator and grounded, the fourth free end extends in a direction away from the second grounding end and the first radiator, and the third feed source is electrically connected to the third feeding point; The fourth radiator includes a third ground end and a fifth free end, the third ground end is spaced apart from the second radiator and is grounded, and the fifth free end extends in a direction away from the third ground end and the second radiator; wherein, A minimum distance between the second ground terminal and the first radiator is greater than a minimum distance between the third ground terminal and the second radiator.

14. The electronic device according to claim 9, characterized in that: The electronic device further comprises: A fourth antenna is arranged on the second body, and the fourth antenna comprises the fourth radiator and a fourth feed source; wherein, In the unfolded state, the fourth feed source is in electrical connection with the fourth radiator and stimulates the fourth radiator to support wireless signals in the eighth frequency band; In the overlapping state, the fourth feed source is disconnected from the fourth radiator, and the fourth radiator is electromagnetically coupled to the third radiator and supports wireless signals in the seventh frequency band.

15. The electronic device according to claim 14, characterized in that: The frequency ranges of the first frequency band, the second frequency band, the fifth frequency band and the eighth frequency band are the same; The frequency range of the third frequency band at least partially overlaps with that of the first frequency band, and the frequency range of the seventh frequency band at least partially overlaps with that of the fifth frequency band.

16. The electronic device according to claim 9, characterized in that: The first body includes a first frame and a second frame that are bent and connected, the second body includes a third frame and a fourth frame that are bent and connected, the first frame and the third frame are arranged opposite to each other and at least partially overlap in the overlapping state, the second frame and the fourth frame at least partially overlap in the overlapping state, and the length of the first frame and the third frame is greater than the length of the second frame or the fourth frame; wherein The first free end is arranged on the first frame and the second free end is arranged on the second frame, or the second free end is arranged on the first frame and the first free end is arranged on the second frame; The third radiator is arranged on the first frame, the third radiator comprises a second grounding end and a fourth free end, the second grounding end is spaced apart from the first radiator and is grounded, and the fourth free end extends in a direction away from the second grounding end and the first radiator; The first grounding end is arranged on the fourth frame and the third free end is arranged on the third frame; or, the first grounding end is arranged on the third frame and the third free end is arranged on the fourth frame; The fourth radiator is arranged on the third frame, and includes a third grounding end and a fifth free end. The third grounding end is spaced apart from the second radiator and grounded, and the fifth free end extends in a direction away from the third grounding end and the second radiator.

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