Electronic device

Abstract

The embodiment of the invention provides electronic equipment. The electronic equipment comprises a floor; the first radiator comprises a first free end, and a feeding point, a first electric connection point, a second electric connection point and a third electric connection point which are sequentially far away from the first free end, the feeding point is used for feeding an excitation signal, and the first electric connection point, the second electric connection point and the third electric connection point are electrically connected with the floor through the tuning module; a gap is formed between the second radiator and the first free end, and the second radiator is electromagnetically coupled with the first radiator through the gap; the excitation signal is used for exciting the first radiator and the floor to jointly support low-frequency resonance, exciting the first radiator and the second radiator to jointly support medium-high-frequency resonance, and exciting the first radiator, the second radiator and the floor to jointly support ultrahigh-frequency resonance. According to the electronic equipment provided by the embodiment of the invention, the occupation of the antenna on the layout space of the electronic equipment can be reduced, the design of the antenna is simplified, and the cost of the antenna can be reduced.

Description

Technical Field

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

[0002] Electronic devices such as smartphones are equipped with multiple antennas to achieve wireless communication functions. For example, electronic devices are usually equipped with 4G low-frequency antennas, 4G medium- and high-frequency antennas, and 5G antennas to achieve corresponding wireless communication functions.

[0003] However, numerous antennas in electronic devices will occupy a large layout space, which is not conducive to antenna design and the use of internal layout space of electronic devices. Summary of the invention

[0004] An embodiment of the present application provides an electronic device, which can reduce the space occupied by the antenna in the layout of the electronic device and simplify the design of the antenna.

[0005] An embodiment of the present application provides an electronic device, including:

[0006] floor;

[0007] A first radiator, comprising a first free end and a feeding point, a first electrical connection point, a second electrical connection point, and a third electrical connection point which are sequentially away from the first free end, wherein the feeding point is used to feed an excitation signal, and the first electrical connection point, the second electrical connection point, and the third electrical connection point are all electrically connected to the floor through a tuning module;

[0008] a second radiator, the second radiator being electrically connected to the floor, a gap being provided between the second radiator and the first free end, and the second radiator being electromagnetically coupled to the first radiator through the gap;

[0009] The excitation signal is used to excite the first radiator and the floor to jointly support low-frequency resonance, to excite the first radiator and the second radiator to jointly support medium- and high-frequency resonance, and to excite the first radiator, the second radiator and the floor to jointly support ultra-high-frequency resonance.

[0010] The electronic device of the embodiment of the present application, by setting the structure of the first radiator and the second radiator, enables the electronic device to simultaneously support low-frequency resonance, medium-high frequency resonance and ultra-high frequency resonance, thereby expanding the communication bandwidth of the electronic device, realizing ultra-wideband characteristics, and reducing the number of required antennas, thereby reducing the occupation of the layout space of the electronic device by the antenna. In addition, the electronic device of the embodiment of the present application, when supporting low-frequency resonance, medium-high frequency resonance and ultra-high frequency resonance at the same time, does not need to switch the frequency band through a switch, thereby simplifying the design of the antenna and reducing the cost of the antenna. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] 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.

[0012] Figure 1 This is a schematic diagram of the first structure of an electronic device according to an embodiment of the present application.

[0013] Figure 2 This is a second structural schematic diagram of an electronic device according to an embodiment of the present application.

[0014] Figure 3 This is a schematic diagram of a first resonant current distribution of an electronic device according to an embodiment of the present application.

[0015] Figure 4 This is a schematic diagram of a second resonant current distribution of an electronic device according to an embodiment of the present application.

[0016] Figure 5 Schematic diagram of a third resonant current distribution of the electronic device according to an embodiment of the present application.

[0017] Figure 6 This is a schematic diagram of a fourth resonant current distribution of the electronic device according to an embodiment of the present application.

[0018] Figure 7 This is a schematic diagram of a fifth resonant current distribution of the electronic device according to an embodiment of the present application.

[0019] Figure 8 This is a schematic diagram of a sixth resonant current distribution of the electronic device according to an embodiment of the present application.

[0020] Fig. 9 A schematic diagram of the antenna S parameters of the electronic device according to an embodiment of the present application.

[0021] Fig.10 Schematic diagram of antenna radiation efficiency of an electronic device according to an embodiment of the present application.

[0022] Fig.11 This is a third structural schematic diagram of the electronic device according to an embodiment of the present application. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than 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.

[0024] An embodiment of the present application provides an electronic device, which may be, for example, a smart phone, a tablet computer, a gaming device, an AR (Augmented Reality) device, a laptop computer, a desktop computing device, or other device with a wireless communication function.

[0025] refer to Figure 1 , Figure 1 1 is a schematic diagram of a first structure of an electronic device 100 according to an embodiment of the present application. The electronic device 100 includes a first radiator 10, a second radiator 20 and a floor 40. The first radiator 10 and the second radiator 20 are spaced apart from the floor 40. The floor 40 can form a reference ground.

[0026] The first radiator 10 and the second radiator 20 can be antenna radiators in the form of FPC (Flexible Printed Circuit), LDS (Laser Direct Structure), PDS (Printing Direct Structure), etc., or they can be antenna radiators in the form of MDA (in-mold molding), or they can be antenna radiators formed by structures such as conductor structures of electronic equipment and metal traces on circuit boards. In practical applications, the first radiator 10 and the second radiator 20 can be antenna radiators of different forms or antenna radiators of the same form. The shapes and sizes of the first radiator 10 and the second radiator 20 can be set according to actual needs. For example, in a practical application example, the first radiator 10 can be in an "L" shape, and the second radiator 20 can be in a long strip shape.

[0027] The first radiator 10 includes a first free end 11 and a feeding point 12 , a first electrical connection point 13 , a second electrical connection point 14 , a third electrical connection point 15 , and a second free end 16 which are sequentially away from the first free end 11 .

[0028] The first free end 11 and the second free end 16 are two opposite ends of the first radiator 10, the first free end 11 is far away from the feeding point 12, and the second free end 16 is far away from the third electrical connection point 15. The feeding point 12 is used to feed the excitation signal. The first electrical connection point 13, the second electrical connection point 14, and the third electrical connection point 15 are all electrically connected to the floor 40 through the tuning module to achieve grounding.

[0029] In some embodiments, the floor 40 can be formed on a main board of the electronic device, or formed on an independent circuit board, or formed on a metal structure such as a metal middle frame, a metal shell, etc. This application does not specifically limit the formation method of the floor 40. In practical applications, the floor 40 can be in a rectangular shape, a rounded rectangular shape, etc. as a whole.

[0030] In some embodiments, the electronic device 100 further includes a feed source 50 and a first tuning module 61 , a second tuning module 62 , and a third tuning module 63 .

[0031] The feed source 50 may be disposed on a circuit board of the electronic device, for example, on a main board, or on a separate small board. The feed source 50 is electrically connected to the feed point 12. The feed source 50 is used to provide the above-mentioned excitation signal, and feed the excitation signal to the first radiator 10 through the feed point 12. The excitation signal may be, for example, a 4G excitation signal, a 5G excitation signal, etc., and the excitation signal may be used to excite the first radiator 10 to radiate a wireless signal to the outside world.

[0032] The first tuning module 61, the second tuning module 62, and the third tuning module 63 can be arranged on a circuit board of the electronic device, for example, on a main board. The first tuning module 61, the second tuning module 62, and the third tuning module 63 can all include impedance elements such as capacitors, inductors, resistors, and the like. Among them, the first electrical connection point 13 is electrically connected to the floor 40 through the first tuning module 61, and the first tuning module 61 can be represented as M1. The second electrical connection point 14 is electrically connected to the floor 40 through the second tuning module 62, and the second tuning module 62 can be represented as M2. The third electrical connection point 15 is electrically connected to the floor 40 through the third tuning module 63, and the third tuning module 63 can be represented as M3.

[0033] In some embodiments, reference Figure 2 , Figure 2 A second structural diagram of the electronic device 100 according to an embodiment of the present application

[0034] The first tuning module 61 includes a first inductor or a zero-ohm resistor, for example, a first inductor L1. The first inductor L1 or the zero-ohm resistor is grounded, for example, it can be electrically connected to the floor 40 to achieve grounding. The first electrical connection point 13 is electrically connected to the first inductor L1 or the zero-ohm resistor to achieve grounding of the first electrical connection point 13.

[0035] The second tuning module 62 includes a first capacitor, for example, a first capacitor C1, and the first capacitor C1 is grounded, for example, it can be electrically connected to the floor 40 to achieve grounding; or, the second tuning module 62 can be an open circuit module, and the open circuit module can be understood as an impedance module with infinite resistance. The second electrical connection point 14 is electrically connected to the first capacitor C1 to achieve grounding of the second electrical connection point 14. When the second tuning module 62 is an open circuit module, an open circuit is formed between the second electrical connection point 14 and the ground.

[0036] The third tuning module 63 is a band-stop circuit. The band-stop circuit 63 includes a second capacitor C2 and a second inductor L2 connected in parallel. The band-stop circuit 63 is grounded, that is, the second capacitor C2 and the second inductor L2 are both grounded, for example, they can be electrically connected to the floor 40 to achieve grounding. The third electrical connection point 15 is electrically connected to the band-stop circuit 63 to achieve grounding of the third electrical connection point 15.

[0037] In practical applications, the first tuning module 61 , the second tuning module 62 , and the third tuning module 63 can all be used to match the impedance of the first radiator 10 to adjust the frequency band of the wireless signal radiated by the first radiator 10 .

[0038] The second radiator 20 is spaced apart from the first radiator 10. The second radiator 20 faces the first free end 11 of the first radiator 10, and there is a gap 30 between the second radiator 20 and the first free end 11. The second radiator 20 is electromagnetically coupled with the first radiator 10 through the gap 30, so when an excitation signal is fed to the first radiator 10 through the feeding point 12, the excitation signal can be transmitted to the second radiator 20 through electromagnetic coupling, thereby also being able to excite the second radiator 20 to radiate wireless signals to the outside world. In practical applications, the first tuning module 61, the second tuning module 62, and the third tuning module 63 can also be used to adjust the frequency band of the wireless signal radiated by the second radiator 20.

[0039] The second radiator 20 is grounded. For example, in some embodiments, the second radiator 20 includes a grounding point 21, and the grounding point 21 can be electrically connected to the floor 40 to achieve grounding. In practical applications, the grounding point 21 can be set at a position away from the gap 30, for example, it can be set at an end of the second radiator 20 away from the gap 30.

[0040] In the embodiment of the present application, the above excitation signal is used to excite the first radiator 10 and the floor 40 to jointly support low-frequency resonance and radiate low-frequency wireless signals to the outside world; and to excite the first radiator 10 and the second radiator 20 to jointly support medium-high frequency resonance and radiate medium-high frequency wireless signals to the outside world; and to excite the first radiator 10, the second radiator 20 and the floor 40 to jointly support ultra-high frequency resonance and radiate ultra-high frequency wireless signals to the outside world. Among them, the frequency range of low-frequency resonance includes 0.7GHz~0.96GHz, the frequency range of medium-high frequency resonance includes 1.71GHz~2.69GHz, and the frequency range of ultra-high frequency resonance includes 3.3GHz~3.8GHz.

[0041] In some embodiments, the low frequency resonance includes a first resonance mode and a second resonance mode. Figure 3 and Figure 4 , Figure 3 Schematic diagram of a first resonant current distribution of the electronic device 100 of the embodiment of the present application, Figure 4 Schematic diagram of a second resonant current distribution of the electronic device 100 according to an embodiment of the present application.

[0042] The portion between the feeding point 12 and the second electrical connection point 14 of the first radiator 10 and the floor 40 are used to jointly support the first resonance mode. The first resonance mode resonates in the first frequency band, and the first resonance mode is a high-order mode resonance mode.

[0043] The first resonant mode forms a first resonant current I1 between the feeding point 12 and the first electrical connection point 13, and forms a second resonant current I2 between the second electrical connection point 14 and the first electrical connection point 13. Figure 3 As shown. The first resonant current I1 is opposite to the second resonant current I2, and the first electrical connection point 13 is a current reversal point. In practical applications, the first resonant current I1 and the second resonant current I2 are distributed on the inner wall of the first radiator 10, that is, the side of the first radiator 10 facing the floor 40.

[0044] The portion between the first electrical connection point 13 and the second free end 16 is used to support the second resonance mode. The second resonance mode is a quarter-wavelength resonance mode of the second frequency band. The second resonance mode forms a third resonance current I3 between the first electrical connection point 13 and the second free end 16, such as Figure 4 shown.

[0045] In some embodiments, the center frequency of the first frequency band is 0.7 GHz, and the center frequency of the second frequency band is 0.97 GHz. Therefore, the first frequency band and the second frequency band can jointly cover low-frequency bands such as B28 (frequency range 703 MHz to 803 MHz), B5 (frequency range 824 MHz to 894 MHz), and B8 (frequency range 880 MHz to 960 MHz) of 4G communication, and can expand the bandwidth of low-frequency communication.

[0046] In some embodiments, the above-mentioned mid-high frequency resonance includes a third resonance mode and a fourth resonance mode. Figure 5 and Figure 6 , Figure 5 Schematic diagram of a third resonant current distribution of the electronic device 100 according to an embodiment of the present application. Figure 6 Schematic diagram of a fourth resonant current distribution of the electronic device 100 according to an embodiment of the present application.

[0047] The third resonance mode is mainly generated by the first radiator 10. The portion between the first free end 11 and the second free end 16 of the first radiator 10 is used to support the third resonance mode. The third resonance mode resonates in the third frequency band, and the third resonance mode is a high-order mode resonance mode. The third resonance mode forms a fourth resonance current I4 between the first free end 11 and the second free end 16, such as Figure 5 shown.

[0048] The fourth resonance mode is mainly generated by the second radiator 20. The second radiator 20 is used to support the fourth resonance mode. The fourth resonance mode is a quarter-wavelength resonance mode of the fourth frequency band. The fourth resonance mode forms a fifth resonance current I5 on the second radiator 20, such as Figure 6 shown.

[0049] In some embodiments, the center frequency of the third frequency band is 2 GHz, and the center frequency of the fourth frequency band is 2.62 GHz. Therefore, the third frequency band and the fourth frequency band can jointly cover medium and high frequency bands such as B3 (frequency range 1710 MHz to 1880 MHz), B1 (frequency range 1920 MHz to 2170 MHz), B40 (frequency range 2300 MHz to 2400 MHz), and B41 (frequency range 2496 MHz to 2690 MHz), which can expand the bandwidth of medium and high frequency communications.

[0050] In some embodiments, the ultra-high frequency resonance includes a fifth resonance mode and a sixth resonance mode. Figure 7 and Figure 8 , Figure 7 Schematic diagram of a fifth resonant current distribution of the electronic device 100 according to an embodiment of the present application. Figure 8 Schematic diagram of a sixth resonant current distribution of the electronic device 100 according to an embodiment of the present application.

[0051] The fifth resonant mode is mainly generated by the first radiator 10. The portion between the feeding point 12 and the first free end 11 of the first radiator 10 is used to support the fifth resonant mode. The fifth resonant mode is a quarter-wavelength mode of the fifth frequency band. The fifth resonance forms a sixth resonant current I6 between the feeding point 12 and the first free end 11, as shown in FIG. Figure 7 shown.

[0052] In some embodiments, the center frequency of the fifth frequency band is 3.6 GHz. Therefore, the fifth frequency band can cover the N78 (frequency range 3300 MHz to 3800 MHz) frequency band of 5G communication, so that the electronic device 100 can support more diverse communication modes.

[0053] A gap 41 is formed between the second radiator 20 and the floor 40. The second radiator 20 and the floor 40 are used to jointly support the sixth resonance mode. The sixth resonance mode is a slot radiation mode generated by the slot 41. The sixth resonance mode forms a seventh resonance current I7 around the slot 41. The seventh resonance current I7 is a circular current. Figure 8 shown.

[0054] In some embodiments, the center frequency of the sixth resonance mode is 3.85 GHz. The sixth resonance mode can also cover the N78 frequency band of 5G communication. Therefore, by jointly covering the N78 frequency band by the fifth resonance mode and the sixth resonance mode, the communication stability and communication performance of the N78 frequency band can be improved.

[0055] refer to Fig. 9 , Fig. 9 FIG. 1 is a schematic diagram of antenna S parameters of the electronic device 100 according to an embodiment of the present application. Fig. 9 It can be seen that the electronic device 100 can generate multiple resonances. Among them, marked points 1 and 2 are low-frequency resonances. Marked point 1 can be the center frequency of the first resonance mode, which is about 0.7 GHz; marked point 2 can be the center frequency of the second resonance mode, which is about 0.97 GHz. Marked points 3 and 5 are medium and high frequency resonances. Marked point 3 can be the center frequency of the third resonance mode, which is about 2 GHz; marked point 5 can be the center frequency of the fourth resonance mode, which is about 2.62 GHz. Marked point 4 is the resonance of the above-mentioned band-stop circuit 63, and the resonance center frequency is about 2.3 GHz. Marked points 6 and 7 are ultra-high frequency resonances. Marked point 6 can be the center frequency of the fifth resonance mode, which is about 3.59 GHz; marked point 7 can be the center frequency of the sixth resonance mode, which is about 3.85 GHz.

[0056] refer to Fig.10 , Fig.10Schematic diagram of antenna radiation efficiency of the electronic device 100 of the embodiment of the present application. S1 represents the theoretical radiation efficiency curve of the antenna, and S2 represents the total radiation efficiency curve of the antenna. Among them, marked points 1 and 2 are low-frequency resonances. The resonant center frequency of marked point 1 is about 0.7 GHz, and the radiation efficiency is about -9.9 dB; the resonant center frequency of marked point 2 is about 0.96 GHz, and the radiation efficiency is about -8.72 dB. Marked points 3, 4, and 6 are medium- and high-frequency resonances. The resonant center frequency of marked point 3 is about 1.71 GHz, and the radiation efficiency is about -6.45 dB; the resonant center frequency of marked point 4 is about 2.17 GHz, and the radiation efficiency is about -3.6 dB; the resonant center frequency of marked point 6 is about 2.69 GHz, and the radiation efficiency is about -4.48 dB. Marked point 5 is the resonance of the above-mentioned band-stop circuit 63, and the resonant center frequency is about 2.3 GHz. Marked points 7 and 8 are ultra-high frequency resonances. The resonant center frequency of the marked point 7 is about 3.3GHz, and the radiation efficiency is about -3.48dB; the resonant center frequency of the marked point 8 is about 3.8GHz, and the radiation efficiency is about -3.87dB. Fig.10 It can be seen that each resonant mode of the antenna has good radiation efficiency.

[0057] The electronic device 100 of the embodiment of the present application, by setting the structure of the first radiator 10 and the second radiator 20, enables the electronic device 100 to simultaneously support low-frequency resonance, medium-high frequency resonance and ultra-high frequency resonance, thereby expanding the communication bandwidth of the electronic device 100, realizing ultra-wideband characteristics, and reducing the number of required antennas, thereby reducing the occupation of the layout space of the electronic device by the antenna. In addition, the electronic device 100 of the embodiment of the present application, when supporting low-frequency resonance, medium-high frequency resonance and ultra-high frequency resonance at the same time, does not need to switch the frequency band through a switch, thereby simplifying the design of the antenna and reducing the cost of the antenna.

[0058] In some embodiments, reference Fig.11 , Fig.11 This is a third structural diagram of the electronic device 100 according to an embodiment of the present application.

[0059] The electronic device 100 also includes a housing 200. The housing 200 includes a metal middle frame 210 and a metal frame 220, and the metal frame 220 is arranged at the periphery of the metal middle frame 210. The metal middle frame 210 and the metal frame 220 can be made of metal or alloy materials such as aluminum alloy and magnesium alloy. The metal middle frame 210 can form the main structure of the electronic device, and is used to carry functional modules such as a motherboard, a camera module, and a battery. The metal frame 220 can form the side frame of the electronic device.

[0060] The metal frame 220 includes a first metal branch 201 and a second metal branch 202. In practical applications, the first metal branch 201 and the second metal branch 202 can be formed by slits in the metal frame 220. The first metal branch 201 forms the first radiator 10, and the second metal branch 202 forms the second radiator 20.

[0061] In some embodiments, the metal frame 220 includes a first side 221 and a second side 222 connected to each other. The length of the first side 221 is greater than the length of the second side 222, that is, the first side 221 can be understood as a long side, and the second side 222 can be understood as a short side.

[0062] The first metal branch 201 includes a first portion 201a and a second portion 201b connected to each other. The first portion 201a is located at the first side 221, and the second portion 201b is located at the second side 222. The second metal branch 202 is located at the second side 222. The second metal branch 202 is spaced apart from the second portion 201b of the first metal branch 201.

[0063] In a feasible example, the length of the first part 201a can be about 30 mm. It is understandable that in the related art, the low-frequency antenna on the side of the electronic device usually has a size of 40 mm to 50 mm. In the embodiment of the present application, the length of the first part 201a is about 30 mm to meet the antenna performance requirements, thereby reducing the layout space occupied by the electronic device, which is conducive to the layout of other electronic components or structural parts.

[0064] In the description of this application, it should be understood that terms such as "first" and "second" are only used to distinguish similar objects and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0065] It should be noted that in the embodiments of the present application, "electrical connection" can be achieved by direct connection between two electrical components to achieve electrical connection, or it can be achieved by indirect connection to achieve electrical connection. For example, A and B are electrically connected, which can be achieved by direct connection between A and B, or it can be achieved by indirect connection between A and B through one or more other electrical components.

[0066] 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: floor; A first radiator, comprising a first free end and a feeding point, a first electrical connection point, a second electrical connection point, and a third electrical connection point which are sequentially away from the first free end, wherein the feeding point is used to feed an excitation signal, and the first electrical connection point, the second electrical connection point, and the third electrical connection point are all electrically connected to the floor through a tuning module; a second radiator, the second radiator being electrically connected to the floor, a gap being provided between the second radiator and the first free end, and the second radiator being electromagnetically coupled to the first radiator through the gap; The excitation signal is used to excite the first radiator and the floor to jointly support low-frequency resonance, to excite the first radiator and the second radiator to jointly support medium- and high-frequency resonance, and to excite the first radiator, the second radiator and the floor to jointly support ultra-high-frequency resonance.

2. The electronic device according to claim 1, characterized in that: The low-frequency resonance includes a first resonance mode and a second resonance mode; The portion between the feeding point and the second electrical connection point and the floor are used to jointly support the first resonance mode, the first resonance mode resonates in a first frequency band, and the first resonance mode is a high-order mode resonance mode; The first radiator also includes a second free end away from the third electrical connection point, and a portion between the first electrical connection point and the second free end is used to support the second resonance mode, and the second resonance mode is a quarter-wavelength resonance mode of the second frequency band.

3. The electronic device according to claim 2, characterized in that: The first resonant mode forms a first resonant current between the feeding point and the first electrical connection point, and a second resonant current between the second electrical connection point and the first electrical connection point, the first resonant current is opposite to the second resonant current, and the first resonant current and the second resonant current are distributed on the side of the first radiator facing the floor.

4. The electronic device according to claim 2, characterized in that: The center frequency of the first frequency band is 0.7 GHz; The center frequency of the second frequency band is 0.97 GHz.

5. The electronic device according to claim 1, characterized in that: The medium and high frequency resonance includes a third resonance mode and a fourth resonance mode; The first radiator further comprises a second free end away from the third electrical connection point, and a portion between the first free end and the second free end is used to support the third resonance mode, the third resonance mode resonates in a third frequency band, and the third resonance mode is a high-order mode resonance mode; The second radiator is used to support the fourth resonance mode, and the fourth resonance mode is a quarter-wavelength resonance mode of a fourth frequency band.

6. The electronic device according to claim 5, characterized in that: The center frequency of the third frequency band is 2 GHz; The center frequency of the fourth frequency band is 2.62 GHz.

7. The electronic device according to claim 1, characterized in that: The ultra-high frequency resonance includes a fifth resonance mode and a sixth resonance mode; The portion between the feeding point and the first free end is used to support the fifth resonance mode, and the fifth resonance mode is a quarter-wavelength mode of the fifth frequency band; A gap is formed between the second radiator and the floor. The second radiator and the floor are used to jointly support the sixth resonance mode. The sixth resonance mode is a gap radiation mode generated by the gap.

8. The electronic device according to claim 7, characterized in that: The center frequency of the fifth frequency band is 3.6 GHz; The center frequency of the sixth resonance mode is 3.85 GHz.

9. The electronic device according to any one of claims 1 to 8, characterized in that: Also includes: A first tuning module, wherein the first tuning module comprises a first inductor or a zero-ohm resistor, and the first inductor or the zero-ohm resistor is grounded; The first electrical connection point is electrically connected to the first inductor or the zero-ohm resistor.

10. The electronic device according to any one of claims 1 to 8, characterized in that: Also includes: A second tuning module, wherein the second tuning module includes a first capacitor or the second tuning module is an open circuit module; The second electrical connection point is electrically connected to the first capacitor or an open circuit is formed between the second electrical connection point and the ground.

11. The electronic device according to any one of claims 1 to 8, characterized in that: Also includes: A third tuning module, wherein the third tuning module is a band-stop circuit, wherein the band-stop circuit includes a second capacitor and a second inductor connected in parallel, and the band-stop circuit is grounded; The third electrical connection point is electrically connected to the band-stop circuit.

12. The electronic device according to any one of claims 1 to 8, characterized in that: The frequency range of the low-frequency resonance includes 0.7 GHz to 0.96 GHz; The frequency range of the medium and high frequency resonance includes 1.71 GHz to 2.69 GHz; The frequency range of the ultra-high frequency resonance includes 3.3 GHz to 3.8 GHz.

13. The electronic device according to any one of claims 1 to 8, characterized in that: Also includes: The shell comprises a metal frame, the metal frame comprises a first metal branch and a second metal branch spaced apart from each other, the first metal branch forms the first radiator, and the second metal branch forms the second radiator.

14. The electronic device according to claim 13, characterized in that: The metal frame comprises a first side and a second side connected to each other, wherein the length of the first side is greater than the length of the second side; The first metal branch comprises a first portion and a second portion connected to each other, the first portion is located at the first side, and the second portion is located at the second side; The second metal branch is located at the second side, and the second metal branch is spaced apart from the second portion of the first metal branch.

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