Electronic device

Abstract

The embodiment of the invention provides an electronic device which comprises a floor which comprises a first edge and a second edge, and the first edge and the second edge are connected in a bent mode to form a corner part; the first radiating body is close to the corner part, and the first radiating body is electromagnetically coupled with the floor; the feed source is electrically connected with the first radiator so as to feed an excitation signal to the first radiator, and the excitation signal is used for exciting the first radiator and the floor to jointly generate resonance of a target frequency band; the second radiator, the third radiator and the fourth radiator are used for generating resonance of a target frequency band; the target frequency band is a low frequency band, and the first radiator, the floor, the second radiator, the third radiator and the fourth radiator jointly form a low-frequency MIMO antenna. According to the electronic equipment, the space occupied by the first radiator can be reduced, the layout space of the electronic equipment can be saved, and the efficiency of transmitting the low-frequency electromagnetic wave signal can be improved, so that the communication performance of the electronic equipment can be improved.

Description

Technical Field

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

[0002] Electronic devices such as smartphones are usually equipped with multiple antennas, such as LB (Lower Band) antennas, MHB (Middle High Band) antennas, WIFI antennas, etc., to achieve corresponding communication functions.

[0003] In the related art, when designing an antenna, due to the limitations of various factors such as the miniaturization of electronic devices, high screen-to-body ratio, and the increasing number of antennas, the antenna performance is often unable to meet the requirements, resulting in difficulties in antenna design. Summary of the invention

[0004] An embodiment of the present application provides an electronic device that can save layout space of the electronic device and improve the communication performance of the electronic device.

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

[0006] A floor, the floor comprising a first side and a second side, the first side and the second side are bent and connected to form a corner;

[0007] A first radiator is spaced apart from the floor, the first radiator is close to the corner, and the first radiator includes a feeding point;

[0008] A feed source, electrically connected to the feeding point, to feed an excitation signal to the first radiator, the first radiator is electromagnetically coupled to the floor, and the excitation signal is used to excite the first radiator and the floor to jointly generate resonance in a target frequency band;

[0009] a second radiator, a third radiator, and a fourth radiator, wherein the second radiator, the third radiator, and the fourth radiator are all spaced apart from the floor, and are used to generate resonance in the target frequency band;

[0010] The target frequency band is a low frequency band, and the first radiator and the floor, the second radiator, the third radiator, and the fourth radiator together form a low frequency MIMO antenna.

[0011] The electronic device provided by the embodiment of the present application generates resonance of the target frequency band through the first radiator and the floor, thereby reducing the length of the first radiator, thereby reducing the space occupied by the first radiator, and saving the layout space of the electronic device. In addition, the first radiator and the floor, the second radiator, the third radiator, and the fourth radiator can jointly form a low-frequency MIMO antenna, thereby improving the efficiency of transmitting low-frequency electromagnetic wave signals, thereby improving the communication performance of the electronic device. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] 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.

[0013] Figure 1 This is a schematic diagram of the first structure of an electronic device according to an embodiment of the present application.

[0014] Figure 2 Schematic diagram of the relationship between the first radiator and the floor of the electronic device according to an embodiment of the present application.

[0015] Figure 3 This is a schematic structural diagram of the floor of an electronic device according to an embodiment of the present application.

[0016] Figure 4 Schematic diagram of the connection relationship of the first radiator of the electronic device according to the embodiment of the present application.

[0017] Figure 5 for Figure 4 A first example of the connection relationship of the first radiator in .

[0018] Figure 6 for Figure 4 A second example of the connection relationship of the first radiator.

[0019] Figure 7 for Figure 4 A third example of the connection relationship of the first radiator.

[0020] Figure 8 This is a second structural schematic diagram of an electronic device according to an embodiment of the present application.

[0021] Fig. 9 This is a schematic diagram of a first antenna switching of an electronic device according to an embodiment of the present application.

[0022] Fig.10 This is a schematic diagram of a second antenna switching of an electronic device according to an embodiment of the present application.

[0023] Fig.11 This is a third antenna switching schematic diagram of the electronic device according to an embodiment of the present application.

[0024] Fig.12 This is a fourth antenna switching schematic diagram of the electronic device according to an embodiment of the present application.

[0025] Fig.13 This is a third structural schematic diagram of the electronic device according to an embodiment of the present application. DETAILED DESCRIPTION

[0026] 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.

[0027] 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.

[0028] refer to Figure 1 , Figure 1 The electronic device 100 of the embodiment of the present application is a schematic diagram of a first structure. The electronic device 100 includes a housing 10, a floor 20, a feed source S, a first radiator 31, a second radiator 32, a third radiator 33 and a fourth radiator 34.

[0029] The housing 10 forms the main structure of the electronic device 100 and is used to accommodate various functional components of the electronic device 100. In some embodiments, the housing 10 may include a middle frame and a battery cover, such as a metal middle frame and a metal battery cover. Functional components such as a motherboard and a battery may be arranged inside the housing 10. In practical applications, the housing 10 may be a rounded rectangular shape as a whole.

[0030] In some embodiments, the housing 10 includes a first side 11, a second side 12, a third side 13, and a fourth side 14 connected end to end in sequence. In practical applications, the first side 11 and the third side 13 may be short sides, the second side 12 and the fourth side 14 may be long sides, the lengths of the first side 11 and the third side 13 are both shorter than the length of the second side 12, and the lengths of the first side 11 and the third side 13 are also shorter than the length of the fourth side 14.

[0031] The floor 20 is disposed in the housing 10. The floor 20 may form a reference ground. In some embodiments, the floor 20 may be formed on a main board of the electronic device 100, or on an independent circuit board, or on a middle frame. The present application does not specifically limit the formation of the floor 20. In practical applications, the floor 20 may also be a rounded rectangular shape as a whole.

[0032] In some embodiments, the floor 20 includes a first side 21 and a second side 22. The first side 11 of the housing 10 is located outside the first side 21, and the second side 12 is located outside the second side 22. The outside can be understood as a side facing the outside of the electronic device 100, or a side facing the edge of the electronic device 100. In practical applications, the first side 21 can be parallel to the first side 11, and the second side 22 can be parallel to the second side 12. The first side 21 is bent and connected to the second side 22 to form a corner 23, and the corner 23 can be rounded.

[0033] The feed source S is disposed in the housing 10. For example, the feed source S may be disposed on a mainboard in the housing 10, or on an independent circuit board. The feed source S is used to provide an excitation signal. The excitation signal may be an excitation signal for 4G communication or an excitation signal for 5G communication.

[0034] The first radiator 31, the second radiator 32, the third radiator 33, and the fourth radiator 34 are all spaced apart from the floor 20. The first radiator 31, the second radiator 32, the third radiator 33, and the fourth radiator 34 can all be disposed on the housing 10. In practical applications, the first radiator 31, the second radiator 32, the third radiator 33, and the fourth radiator 34 can all be antenna radiators in the form of FPC (Flexible Printed Circuit), LDS (Laser Direct Structure), PDS (Printing Direct Structure), etc., or antenna radiators in the form of MDA (Mechanical Design Antenna), for example, antenna radiators formed by structures such as conductor structures inside the electronic device 100, metal middle frames, and metal traces on circuit boards. In practical applications, the first radiator 31, the second radiator 32, the third radiator 33, and the fourth radiator 34 can be antenna radiators of different forms, or antenna radiators of the same form. The shapes, sizes, etc. of the first radiator 31 , the second radiator 32 , the third radiator 33 , and the fourth radiator 34 can be set according to actual needs.

[0035] Among them, the first radiator 31 is arranged near the corner 23. The first radiator 31 includes a feeding point 311, for example, the feeding point 311 can be arranged at one end of the first radiator 31. The feed source S is electrically connected to the feeding point 311 of the first radiator 31 to feed the above-mentioned excitation signal to the first radiator 31. In the embodiment of the present application, the first radiator 31 is electromagnetically coupled with the floor 20. The excitation signal is used to excite the first radiator 31 and the floor 20 to jointly generate resonance in the target frequency band, thereby radiating electromagnetic wave signals in the target frequency band to the outside world. It can be understood that in the electromagnetic coupling between the first radiator 31 and the floor 20, the first radiator 31 acts as a capacitive coupling element. Therefore, when the first radiator 31 is arranged near the corner 23, it can fully excite the floor 20 to generate a longitudinal current, wherein the longitudinal direction is a direction parallel to the second side 22.

[0036] In the embodiment of the present application, the target frequency band is a low frequency band (Low Band, LB), and the frequency range of the low frequency band is 690MHz to 960MHz. In some embodiments, the target frequency band may include the B5, B8, B20, B28 and other frequency bands of 4G communication, and may also include the N5, N8, N20, N28 and other frequency bands of 5G communication.

[0037] In some embodiments, the first radiator 31 and the floor 20 together form a dipole antenna. The first radiator 31 can form one radiating arm of the dipole antenna, and the floor 20 can form another radiating arm of the dipole antenna. When the feed source S feeds an excitation signal to the first radiator 31, the first radiator 31 and the floor 20 form a dipole antenna, and together generate resonance in the above target frequency band.

[0038] It is understandable that, since the target frequency band is a low frequency band, the length of the radiator required for the low frequency band in the traditional antenna design is very long. In the embodiment of the present application, the resonance of the target frequency band is generated by the first radiator 31 and the floor 20, and the length of the first radiator 31 can be reduced while ensuring the wireless communication performance. Therefore, in the case of tight layout space of the electronic device 100, the space occupied by the first radiator 31 can be reduced, saving the layout space of the electronic device 100.

[0039] In the embodiment of the present application, the second radiator 32, the third radiator 33, and the fourth radiator 34 are all used to generate resonance in the above-mentioned target frequency band. Therefore, the first radiator 31 and the floor 20, the second radiator 32, the third radiator 33, and the fourth radiator 34 can jointly form a low-frequency MIMO (multiple input multiple output) antenna. By forming a low-frequency MIMO antenna, the efficiency of transmitting low-frequency electromagnetic wave signals can be improved, thereby improving the communication performance of the electronic device 100.

[0040] In some embodiments, the third radiator 33 forms an IFA antenna (Inverted-F antenna).

[0041] In some embodiments, the electronic device 100 further includes a camera module 50, which is mounted on the housing 10. The camera module 50 includes a camera 51 and a metal decorative member 52 mounted on the periphery of the camera 51. The camera 51 may be one or multiple cameras arranged at intervals, for example Figure 1 As shown, there may be two cameras 51, and the two cameras 51 are arranged at an interval. The material of the metal decorative part 52 may be metal or alloy, such as aluminum alloy, magnesium alloy, etc. The metal decorative part 52 can cover the gap between the camera 51 and the housing 10, thereby playing a decorative role and making the appearance of the electronic device 100 more beautiful.

[0042] The fourth radiator 34 may be formed by the metal decoration 52. It is understandable that the fourth radiator 34 may be formed by the metal decoration 52, and the metal decoration 52 may be reused without separately setting the fourth radiator 34, thereby saving the layout space inside the electronic device 100.

[0043] In some embodiments, the first radiator 31, the second radiator 32, the third radiator 33, and the fourth radiator 34 may be arranged in a surrounding manner. Figure 1 As shown, the first radiator 31 can be arranged at the corner formed by the connection of the first side 11 and the second side 12, the second radiator 32 can be arranged at the corner formed by the connection of the third side 13 and the fourth side 14, the third radiator 33 can be arranged at an end of the second side 12 close to the third side 13, and the fourth radiator 34 can be arranged close to the connection between the fourth side 14 and the first side 11.

[0044] It is understandable that, when the user actually uses the electronic device 100, some parts of the electronic device 100 may be held tightly by the user, while the probability that the first radiator 31, the second radiator 32, the third radiator 33, and the fourth radiator 34 are held tightly by the user at the same time is very small. Therefore, through the surround layout, the stability of the electromagnetic wave signal in the target frequency band can be guaranteed, thereby improving the wireless communication stability of the electronic device 100.

[0045] In some embodiments, reference Figure 2 , Figure 2 Schematic diagram of the relationship between the first radiator 31 and the floor 20 of the electronic device according to the embodiment of the present application.

[0046] The floor 20 has a current weak point region P1 of a characteristic mode current. The orthographic projection of the feeding point 311 on the floor 20 is located in the current weak point region P1.

[0047] In some embodiments, reference Figure 3 , Figure 3 It is a schematic structural diagram of a floor 20 of an electronic device according to an embodiment of the present application.

[0048] An area P2 is formed with the intersection O of the extension lines of the first side 21 and the second side 22 of the floor 20 as the center and 1 / 16 of the wavelength of the target frequency band as the radius r, and the weak area P1 is located in the area P2.

[0049] In some embodiments, reference Figure 4 , Figure 4 Schematic diagram of the connection relationship of the first radiator 31 of the electronic device according to the embodiment of the present application.

[0050] The electronic device 100 further includes an inductive device 61 , which has an inductive characteristic. One end of the inductive device 61 is electrically connected to the first radiator 31 , and the other end of the inductive device 61 is electrically connected to the feed source S.

[0051] It is understandable that the inductive device can replace the radiator in size, thereby compensating for the length of the radiator. Therefore, by providing the inductive device 61, the length of the first radiator 31 can be compensated, thereby further reducing the length of the first radiator 31 and saving the layout space of the electronic device 100.

[0052] In some embodiments, reference Figure 5 , Figure 5 for Figure 4 A first example of the connection relationship of the first radiator 31.

[0053] The inductive device 61 includes an inductor L0. In a feasible example, the inductance value of the inductor L0 may be fixed, and the inductance value may be set according to actual conditions, in which case the frequency range of the target frequency band is also determined. In another feasible example, the inductor L0 may be an adjustable inductor, and the inductance value of the inductor L0 may be adjusted, thereby adjusting the frequency range of the target frequency band.

[0054] In some embodiments, the electronic device 100 further includes a switch unit. The switch unit has a common terminal and N ports, and the common terminal can connect or disconnect any one or more ports. Wherein, N is a positive integer, for example, N can be 2, 3, 4, etc.

[0055] The inductive device 61 includes N+1 inductors. The N+1 inductors are connected in series between the first radiator 31 and the feed source S. One end of the N+1 inductors is electrically connected to the first radiator 31, and the other end of the N+1 inductors is electrically connected to the feed source S. The connection point of two adjacent inductors is electrically connected to one of the above-mentioned ports, and different connection points are electrically connected to different ports.

[0056] When the common end is connected to different ports, or the common end is disconnected from the N ports, the target frequency band can be switched.

[0057] The following uses N=2 as an example to illustrate the embodiment of the present application, but it is understandable that in actual applications, N can also be other values. Figure 6 , Figure 6 for Figure 4 A second example of the connection relationship of the first radiator 31.

[0058] The switch unit is, for example, a switch unit 62. The switch unit 62 has a common terminal, such as a common terminal RFC. The N ports of the switch unit 62 include a first port a and a second port b. The common terminal RFC can connect or disconnect the first port a and the second port b.

[0059] The N+1 inductors of the inductive device 61 include a first inductor L1, a second inductor L2 and a third inductor L3. The first inductor L1, the second inductor L2 and the third inductor L3 are connected in series in sequence. The inductance values ​​of the first inductor L1, the second inductor L2 and the third inductor L3 can be set according to actual needs. Among them, the first inductor L1 is electrically connected to the first radiator 31. The third inductor L3 is electrically connected to the feed source S. The connection point between the first inductor L1 and the second inductor L2 is electrically connected to the first port a. The connection point between the second inductor L2 and the third inductor L3 is electrically connected to the second port b. The connection point between the third inductor L3 and the feed source S is electrically connected to the common terminal RFC.

[0060] When the common end RFC connects different ports of the first port a and the second port b, or when the common end RFC disconnects the first port a and the second port b, the target frequency band can be switched.

[0061] Specifically, when the common terminal RFC is connected to the first port a, the first inductor L1 is connected to the circuit, the second inductor L2 and the third inductor L3 are short-circuited, and the inductance value of the first inductor L1 is presented as a whole. At this time, the target frequency band is the first frequency band. When the common terminal RFC is connected to the second port b, the first inductor L1 and the second inductor L2 are connected to the circuit in series, and the third inductor L3 is short-circuited, and the inductance value of the first inductor L1 and the second inductor L2 in series is presented as a whole. At this time, the target frequency band is the second frequency band. When the common terminal RFC disconnects the first port a and the second port b, the first inductor L1, the second inductor L2, and the third inductor L3 are all connected to the circuit, and the inductance value of the first inductor L1, the second inductor L2, and the third inductor L3 in series is presented as a whole. At this time, the target frequency band is the third frequency band.

[0062] Among them, the center frequencies of the first frequency band, the second frequency band, and the third frequency band decrease in sequence.

[0063] For example, in some embodiments, the first frequency band is the B8 frequency band of 4G communication, the second frequency band is the B20 frequency band of 4G communication, and the third frequency band is the B28 frequency band of 4G communication. In other embodiments, the first frequency band is the N8 frequency band of 5G communication, the second frequency band is the N20 frequency band of 5G communication, and the third frequency band is the N28 frequency band of 5G communication.

[0064] In some embodiments, reference Figure 7 , Figure 7 for Figure 4 A third example of the connection relationship of the first radiator 31.

[0065] The switch unit 62 further includes a third port c. The common terminal RFC can connect or disconnect the third port c. The inductive device 61 further includes a fourth inductor L4. One end of the fourth inductor L4 is electrically connected to the third port c, and the other end of the fourth inductor L4 is grounded.

[0066] When the common terminal RFC connects the second port b and the third port c, the third inductor L3 is short-circuited, which is equivalent to the first inductor L1 and the second inductor L2 being connected in series and then connected in parallel with the fourth inductor L4. At this time, the target frequency band is the fourth frequency band. The center frequency of the fourth frequency band is less than the center frequency of the second frequency band.

[0067] For example, in some implementations, the fourth frequency band is the B5 frequency band of 4G communication, or the fourth frequency band is the N5 frequency band of 5G communication.

[0068] In some embodiments, the switch unit 62 further includes a fourth port d. The common terminal RFC can connect or disconnect the fourth port d. The inductive device 61 further includes a fifth inductor L5. One end of the fifth inductor L5 is electrically connected to the fourth port d, and the other end of the fifth inductor L5 is grounded.

[0069] When the common terminal RFC connects the first port a, or connects the second port b, or disconnects the first port a and the second port b, the common terminal RFC connects or disconnects the fourth port d to switch the transmission frequency band and the reception frequency band of the target frequency band.

[0070] For example, when the public end RFC is connected to the first port a, the public end RFC is simultaneously connected to the fourth port d, and the frequency band supported at this time is the transmit frequency band of the first frequency band; when the public end RFC is connected to the first port a, the public end RFC is disconnected from the fourth port d, and the frequency band supported at this time is the receive frequency band of the first frequency band. The second frequency band, the third frequency band, and the fourth frequency band mentioned above are also the same, and will not be described in detail here.

[0071] In some embodiments, the electronic device 100 further includes a sixth inductor L6. One end of the sixth inductor L6 is electrically connected between the inductive device 61 and the feed source S, for example, electrically connected between the third inductor L3 and the feed source S; the other end of the sixth inductor L6 is grounded. The sixth inductor L6 is equivalent to being connected in parallel with the first inductor L1, the second inductor L2, and the third inductor L3 in series. Therefore, the sixth inductor L6 can improve the impedance matching state between the first radiator 31 and the feed source S, and enhance the performance of wireless communication.

[0072] In some embodiments, reference Figure 8 , Figure 8 This is a second structural diagram of the electronic device 100 according to an embodiment of the present application.

[0073] The electronic device 100 further includes a fifth radiator 35, a sixth radiator 36, a seventh radiator 37, and an eighth radiator 38. The fifth radiator 35, the sixth radiator 36, the seventh radiator 37, and the eighth radiator 38 are all spaced apart from the floor 20. In practical applications, the fifth radiator 35, the sixth radiator 36, the seventh radiator 37, and the eighth radiator 38 can all be disposed on the housing 10. The fifth radiator 35, the sixth radiator 36, the seventh radiator 37, and the eighth radiator 38 can also be antenna radiators in various forms such as FPC, LDS, PDS, and MDA. In practical applications, the sixth radiator 36 can be formed as a whole with the third radiator 33, and the electrical isolation of the sixth radiator 36 and the third radiator 33 can be achieved by grounding at a suitable position of the integrated structure.

[0074] Among them, the fifth radiator 35, the sixth radiator 36, the seventh radiator 37, and the eighth radiator 38 are all used to generate resonance in the middle and high frequency band (Middle High Band, MHB) to jointly form a middle and high frequency MIMO antenna. The frequency range of the middle and high frequency band is 1710MHz to 2690MHz. By forming a middle and high frequency MIMO antenna, the efficiency of transmitting middle and high frequency electromagnetic wave signals can be improved, thereby also improving the communication performance of the electronic device 100.

[0075] In some embodiments, the fifth radiator 35, the sixth radiator 36, the seventh radiator 37, and the eighth radiator 38 are also used to generate resonance in the N41 frequency band to jointly form a MIMO antenna in the N41 frequency band, thereby improving the electromagnetic wave signal transmission efficiency in the N41 frequency band and improving communication performance. The frequency range of the N41 frequency band includes 2515MHz to 2675MHz and 4800MHz to 4900MHz.

[0076] In some embodiments, the fifth radiator 35, the sixth radiator 36, the seventh radiator 37, and the eighth radiator 38 may also be arranged in a surrounding manner. Figure 8 As shown, the fifth radiator 35 can be arranged at one end of the first side 11 close to the second side 12, the sixth radiator 36 can be arranged at one end of the third side 13 close to the second side 12, the seventh radiator 37 can be arranged at the fourth side 14, and the eighth radiator 38 can be arranged at the second side 12.

[0077] It can be understood that the fifth radiator 35, the sixth radiator 36, the seventh radiator 37, and the eighth radiator 38 are arranged in a surrounding manner, which can reduce the probability that the fifth radiator 35, the sixth radiator 36, the seventh radiator 37, and the eighth radiator 38 are simultaneously held by the user. Therefore, the stability of the medium and high frequency electromagnetic wave signals can be guaranteed, thereby improving the wireless communication stability of the electronic device 100.

[0078] In some embodiments, the electronic device 100 further includes a ninth radiator 39 and a tenth radiator 40. The ninth radiator 39 and the tenth radiator 40 are both spaced apart from the floor 20. In practical applications, the ninth radiator 39 and the tenth radiator 40 can be disposed on the housing 10. For example, the ninth radiator 39 can be disposed at a corner formed by connecting the first side 11 and the fourth side 14, and the tenth radiator 40 can be disposed at the fourth side 14. The ninth radiator 39 and the tenth radiator 40 can also be antenna radiators in various forms such as FPC, LDS, PDS, and MDA.

[0079] The ninth radiator 39 and the tenth radiator 40 are both used to generate WIFI resonance in the first sub-frequency band to radiate WIFI signals to the outside. In some embodiments, the first sub-frequency band is the WIFI 2.4 GHz frequency band.

[0080] In some embodiments, the electronic device 100 further includes an eleventh radiator 41. The eleventh radiator 41 is spaced apart from the floor 20. For example, in some embodiments, the eleventh radiator 41 can be disposed on the mainboard bracket. The eleventh radiator 41 can be an antenna radiator in the form of FPC, LDS, PDS, etc.

[0081] Among them, the first radiator 31, the ninth radiator 39, the tenth radiator 40, and the eleventh radiator 41 are all used to generate the N78 frequency band resonance of 5G communication to jointly form a MIMO antenna of the N78 frequency band. By forming a MIMO antenna of the N78 frequency band, the transmission efficiency of the electromagnetic wave signal of the N78 frequency band can be improved, and the communication performance can be improved. Among them, the frequency range of the N78 frequency band includes 3400MHz~3500MHz, 3500MHz~3600MHz.

[0082] In some embodiments, the electronic device 100 further includes a twelfth radiator 42. The twelfth radiator 42 is spaced apart from the floor 20. In practical applications, the twelfth radiator 42 can be disposed on the housing 10. For example, the twelfth radiator 42 can be disposed on the first side 11. The twelfth radiator 42 can be an antenna radiator in various forms such as FPC, LDS, PDS, MDA, etc.

[0083] The eleventh radiator 41 and the twelfth radiator 42 are both used to generate WIFI resonance in the second sub-frequency band to radiate WIFI signals to the outside. In some embodiments, the second sub-frequency band is the WIFI 5 GHz frequency band.

[0084] In some embodiments, the twelfth radiator 42 is further used to generate resonance in the GPS L1 frequency band to form a GPS L1 antenna, thereby enabling the electronic device 100 to support communications in the GPS L1 frequency band.

[0085] In some embodiments, the electronic device 100 further includes a thirteenth radiator 43. The thirteenth radiator 43 is spaced apart from the floor 20. For example, in some embodiments, the thirteenth radiator 43 can be disposed on the mainboard bracket. The thirteenth radiator 43 can be an antenna radiator in the form of FPC, LDS, PDS, etc.

[0086] The thirteenth radiator 43 is used to generate resonance in the GPS L5 frequency band to form a GPS L5 antenna, so that the electronic device 100 can support communication in the GPS L5 frequency band.

[0087] It can be understood that the GPS L1 antenna is formed by the twelfth radiator 42, and the GPS L5 antenna is formed by the thirteenth radiator 43, so the electronic device 100 can support dual-frequency GPS communication, thereby improving the efficiency and stability of GPS communication.

[0088] In practical applications, the first radiator 31 to the thirteenth radiator 43 can sequentially form antennas ANT-1, ANT-2, ANT-3, ANT-4, ANT-5, ANT-6, ANT-7, ANT-8, ANT-9, ANT-10, ANT-11, ANT-12, and ANT-13. In an application example, the communication frequency bands supported by each antenna are as follows:

[0089] ANT-1: LB DRX, N78 PRX MIMO

[0090] ANT-2: LB PRX

[0091] ANT-3: N8&N28 PRX MIMO, BT

[0092] ANT-4: N8&N28 DRX MIMO

[0093] ANT-5: MHB PRX MIMO (CA), N41 PRX MIMO

[0094] ANT-6: MHB PRX(CA), N41 PRX

[0095] ANT-7: MHB DRX(CA), N41 DRX

[0096] ANT-8: MHB DRX MIMO, N41 DRX MIMO

[0097] ANT-9: 2.4G WIFI-CH0, N78 PRX

[0098] ANT-10: 2.4G WIFI-CH1, N78 DRX

[0099] ANT-11: N78 DRX MIMO, 5G WIFI-CH1

[0100] ANT-12: GPS L1, 5G WIFI-CH0

[0101] ANT-13: GPS L5

[0102] Among them, DRX represents diversity receiving antenna, PRX represents main receiving antenna, BT represents Bluetooth communication, CA represents carrier aggregation, CH0 represents a WIFI channel, and CH1 represents another WIFI channel. When ANT-1 supports the LB frequency band, it is achieved by the joint resonance of the first radiator 31 and the floor 20; when ANT-1 supports the N78 frequency band, it can be achieved by the independent resonance of the first radiator 31. ANT-3 can also support Bluetooth (BT) communication.

[0103] In addition, in practical applications, some of the above multiple antennas can also be reused as SAR (Specific Absorption Ratio) sensors to detect the SAR value of the electronic device 100. For example, ANT-1, ANT-7, and ANT-9 can be reused as SAR sensors.

[0104] It can be understood that in the embodiments of the present application, the above-mentioned multiple antennas can form multiple MIMO antennas, so in actual applications, intelligent switching can be performed between multiple MIMO antennas to ensure wireless communication performance.

[0105] refer to Fig. 9 , Fig. 9 This is a schematic diagram of the first antenna switching of the electronic device 100 of the embodiment of the present application. Among them, ANT-1, ANT-2, ANT-3, and ANT-4 can form a 4*4 MIMO antenna of a low frequency band such as N8 and N28, and the electronic device 100 can switch among ANT-1, ANT-2, ANT-3, and ANT-4 to ensure the communication performance of the low frequency band such as N8 and N28.

[0106] refer to Fig.10 , Fig.10 The second antenna switching schematic diagram of the electronic device 100 of the embodiment of the present application is shown in FIG. ANT-1, ANT-9, ANT-10, and ANT-11 can form a 4*4 MIMO antenna of the N78 frequency band, and the electronic device 100 can switch among ANT-1, ANT-9, ANT-10, and ANT-11 to ensure the communication performance of the N78 frequency band.

[0107] refer to Fig.11 , Fig.11 This is a third antenna switching schematic diagram of the electronic device 100 of the embodiment of the present application. Among them, ANT-5, ANT-6, ANT-7, and ANT-8 can form a 4*4 MIMO antenna in the MHB band, and the electronic device 100 can switch among ANT-5, ANT-6, ANT-7, and ANT-8 to ensure the communication performance of the MHB band.

[0108] refer to Fig.12, Fig.12 This is a fourth antenna switching schematic diagram of the electronic device 100 of the embodiment of the present application. Among them, ANT-1 and ANT-2 can form a 2*2 MIMO antenna in the LB band, and the electronic device 100 can switch between ANT-1 and ANT-2 to ensure the communication performance of the LB band.

[0109] In some embodiments, reference Fig.13 , Fig.13 This is a third structural diagram of the electronic device 100 according to an embodiment of the present application.

[0110] The electronic device 100 further includes a mute key 70. The mute key 70 may be a push-button or a paddle-type key. The user may operate the mute key 70 to enable the mute mode of the electronic device 100 or cancel the mute mode.

[0111] The mute key 70 is disposed on the housing 10 . For example, in some embodiments, the mute key 70 may be located on the second side 12 of the housing 10 .

[0112] In some embodiments, Fig.13 As shown, the first radiator 31 is located at the corner formed by the connection of the first side 11 and the second side 12, and the eighth radiator 38 is located at the second side. The mute key 70 is located between the first radiator 31 and the eighth radiator 38. It can be understood that since the first radiator 31 and the floor 20 jointly generate resonance of the target frequency band, the length of the first radiator 31 is reduced, the first radiator 31 is miniaturized, and the space occupied by the first radiator 31 can be reduced. Therefore, the mute key 70 can be set between the first radiator 31 and the eighth radiator 38. The mute key 70 is set at this position, which can facilitate user operation on the one hand, and improve the overall aesthetics of the electronic device 100 on the other hand.

[0113] 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.

[0114] 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.

[0115] The electronic device provided by the embodiment of the present application is described in detail above. The principle and implementation method of the present application are described in detail using specific examples herein, and the description of the above embodiments is only used to help understand the present application. At the same time, for those skilled in the art, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as limiting the present application.

Claims

1. An electronic device, characterized in that: include: A floor, the floor comprising a first side and a second side, the first side and the second side are bent and connected to form a corner; A first radiator is spaced apart from the floor, the first radiator is close to the corner, and the first radiator includes a feeding point; A feed source, electrically connected to the feeding point, to feed an excitation signal to the first radiator, the first radiator is electromagnetically coupled to the floor, and the excitation signal is used to excite the first radiator and the floor to jointly generate resonance in a target frequency band; a second radiator, a third radiator, and a fourth radiator, wherein the second radiator, the third radiator, and the fourth radiator are all spaced apart from the floor, and are used to generate resonance in the target frequency band; The target frequency band is a low frequency band, and the first radiator and the floor, the second radiator, the third radiator, and the fourth radiator together form a low frequency MIMO antenna.

2. The electronic device according to claim 1, characterized in that: The orthographic projection of the feeding point on the floor is located at a current weak point area of ​​the characteristic mode current of the floor.

3. The electronic device according to claim 2, characterized in that: An area is formed with the intersection of the extension line of the first side and the extension line of the second side as the center and 1 / 16 of the wavelength of the target frequency band as the radius, and the current weak point area is located in the area.

4. The electronic device according to any one of claims 1 to 3, characterized in that: Also includes: An inductive device, one end of which is electrically connected to the first radiator, and the other end of which is electrically connected to the feed source.

5. The electronic device according to claim 4, characterized in that: Also included is a switch unit, the switch unit having a common terminal and N ports, the common terminal being capable of connecting or disconnecting any one or more of the ports, wherein N is a positive integer; The inductive device includes N+1 inductors, one end of the N+1 inductors is electrically connected to the first radiator, the other end of the N+1 inductors is electrically connected to the feed source, the connection point of two adjacent inductors is electrically connected to one port, and different connection points are electrically connected to different ports, and the connection point between the N+1 inductors and the feed source is electrically connected to the common end; When the common end is connected to different ports, or when the common end is disconnected from the N ports, the target frequency band can be switched.

6. The electronic device according to claim 5, characterized in that: The N ports include a first port and a second port; The N+1 inductors include a first inductor, a second inductor, and a third inductor connected in series in sequence, the first inductor is electrically connected to the first radiator, the third inductor is electrically connected to the feed source, a connection point between the first inductor and the second inductor is electrically connected to the first port, and a connection point between the second inductor and the third inductor is electrically connected to the second port; When the common terminal is connected to the first port, the target frequency band is the first frequency band; when the common terminal is connected to the second port, the target frequency band is the second frequency band; when the common terminal is disconnected from the first port and the second port, the target frequency band is the third frequency band; The center frequencies of the first frequency band, the second frequency band, and the third frequency band decrease in sequence.

7. The electronic device according to claim 6, characterized in that: The first frequency band is the B8 frequency band of 4G communication, the second frequency band is the B20 frequency band of 4G communication, and the third frequency band is the B28 frequency band of 4G communication; or The first frequency band is the N8 frequency band of 5G communication, the second frequency band is the N20 frequency band of 5G communication, and the third frequency band is the N28 frequency band of 5G communication.

8. The electronic device according to claim 6, characterized in that: The switch unit further includes a third port, and the common terminal can connect or disconnect the third port; The inductive device further includes a fourth inductor, one end of the fourth inductor is electrically connected to the third port, and the other end of the fourth inductor is grounded; When the common end is connected to the second port and the third port, the target frequency band is a fourth frequency band, and a center frequency of the fourth frequency band is smaller than a center frequency of the second frequency band.

9. The electronic device according to claim 8, characterized in that: The fourth frequency band is the B5 frequency band of 4G communication, or the fourth frequency band is the N5 frequency band of 5G communication.

10. The electronic device according to claim 6, characterized in that: The switch unit further includes a fourth port, and the common terminal can connect or disconnect the fourth port; The inductive device further includes a fifth inductor, one end of the fifth inductor is electrically connected to the fourth port, and the other end of the fifth inductor is grounded; When the common terminal connects the first port, or connects the second port, or disconnects the first port and the second port, the common terminal connects or disconnects the fourth port to switch the transmitting frequency band and the receiving frequency band of the target frequency band.

11. The electronic device according to claim 4, characterized in that: Also includes: A sixth inductor, one end of the sixth inductor is electrically connected between the inductive device and the feed source, and the other end of the sixth inductor is grounded.

12. The electronic device according to any one of claims 1 to 3, characterized in that: The third radiator forms an IFA antenna.

13. The electronic device according to any one of claims 1 to 3, characterized in that: Also includes: A camera module, the camera module comprising a camera and a metal decorative piece mounted on the periphery of the camera, the metal decorative piece forming the fourth radiator.

14. The electronic device according to any one of claims 1 to 3, characterized in that: Also includes: The fifth radiator, the sixth radiator, the seventh radiator, and the eighth radiator are all spaced apart from the floor, and are used to generate resonance in the medium and high frequency bands to jointly form a medium and high frequency MIMO antenna.

15. The electronic device according to claim 14, characterized in that: The fifth radiator, the sixth radiator, the seventh radiator, and the eighth radiator are also used to generate resonance in the N41 frequency band to jointly form a MIMO antenna in the N41 frequency band.

16. The electronic device according to any one of claims 1 to 3, characterized in that: Also includes: The ninth radiator and the tenth radiator are both spaced apart from the floor and are used to generate WIFI resonance in the first sub-frequency band.

17. The electronic device according to claim 16, characterized in that: The first sub-frequency band is the WIFI 2.4 GHz frequency band.

18. The electronic device according to claim 16, characterized in that: Also includes: an eleventh radiator, the eleventh radiator being spaced apart from the floor; The first radiator, the ninth radiator, the tenth radiator, and the eleventh radiator are all used to generate N78 frequency band resonance of 5G communication to jointly form a MIMO antenna of the N78 frequency band.

19. The electronic device according to claim 18, characterized in that: Also includes: a twelfth radiator, the twelfth radiator being spaced apart from the floor; The eleventh radiator and the twelfth radiator are both used to generate WIFI resonance in the second sub-frequency band.

20. The electronic device according to claim 19, characterized in that The second sub-frequency band is the WIFI 5 GHz frequency band.

21. The electronic device according to claim 19, characterized in that: The twelfth radiator is also used to generate resonance in the GPS L1 frequency band to form a GPS L1 antenna.

22. The electronic device according to any one of claims 1 to 3, characterized in that: Also includes: A thirteenth radiator, the thirteenth radiator is spaced apart from the floor, and the thirteenth radiator is used to generate resonance in the GPS L5 frequency band to form a GPS L5 antenna.

23. The electronic device according to claim 14, characterized in that: Also includes: A shell, wherein the floor is arranged in the shell, the shell comprises a first side and a second side connected to the first side, the first side is located outside the first side, and the second side is located outside the second side; A mute key is arranged on the housing, and the mute key is located on the second side.

24. The electronic device according to claim 23, characterized in that: The first radiator and the eighth radiator are both disposed on the housing, the first radiator is located at a corner formed by the first side and the second side, and the eighth radiator is located at the second side; The mute key is located between the first radiator and the eighth radiator.

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