Antenna device and electronic equipment

Abstract

The embodiment of the invention provides an antenna device and electronic equipment, and the antenna device comprises a first radiator which is grounded; a gap is formed between the second radiating body and the first radiating body, the second radiating body is electromagnetically coupled with the first radiating body through the gap, a first feeding point, a second feeding point and a grounding point are arranged on the second radiating body at intervals, the first feeding point, the second feeding point and the grounding point are sequentially far away from the first radiating body, and the grounding point is grounded; the first feeding point is used for feeding in a first excitation signal to excite the second radiator to support a 5G resonant mode; and the second feeding point is used for feeding a second excitation signal so as to excite the second radiator to support the intermediate frequency resonance mode and excite the second radiator and the first radiator to jointly support the WiFi resonance mode. According to the antenna device, the influence of a human body on the radiation performance of the antenna device can be reduced, the radiation performance of the antenna device is improved, and the stability of wireless communication is enhanced.

Description

Technical Field

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

[0002] An antenna is provided in electronic devices such as smart phones to realize wireless communication functions. For example, a 4G antenna, a 5G antenna, a WiFi antenna, etc. are generally provided in electronic devices to realize corresponding wireless communication functions.

[0003] In the related art, the antenna of the electronic device is easily affected by the external environment, such as the human body, which causes the radiation performance of the antenna to be reduced. Summary of the invention

[0004] The embodiments of the present application provide an antenna device and an electronic device, which can improve the radiation performance of the antenna device and enhance the stability of wireless communication.

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

[0006] a first radiator, wherein the first radiator is grounded;

[0007] a second radiator, wherein a gap is provided between the second radiator and the first radiator, the second radiator is electromagnetically coupled with the first radiator through the gap, a first feeding point, a second feeding point, and a grounding point are arranged on the second radiator at intervals, the first feeding point, the second feeding point, and the grounding point are respectively away from the first radiator, and the grounding point is grounded;

[0008] The first feeding point is used to feed a first excitation signal to excite the second radiator to support a 5G resonance mode;

[0009] The second feeding point is used to feed a second excitation signal to excite the second radiator to support an intermediate frequency resonance mode, and to excite the second radiator and the first radiator to jointly support a WiFi resonance mode.

[0010] The present application also provides an electronic device, including:

[0011] Main body;

[0012] An antenna device is provided on the main body, and the antenna device is the above-mentioned antenna device.

[0013] The antenna device of the embodiment of the present application sets dual feeding points, that is, sets a first feeding point and a second feeding point on the second radiator, and feeds different excitation signals into each of the dual feeding points, thereby being able to stimulate different parts of the antenna device to support different resonance modes, thereby reducing the influence of the human body on the radiation performance of the antenna device, being able to improve the radiation performance of the antenna device, and enhancing the stability of wireless communication. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] 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.

[0015] Figure 1 This is a schematic diagram of the first structure of the antenna device according to an embodiment of the present application.

[0016] Figure 2 This is a schematic diagram of a second structure of the antenna device according to an embodiment of the present application.

[0017] Figure 3 This is a schematic diagram of a third structure of the antenna device according to an embodiment of the present application.

[0018] Figure 4 This is a schematic diagram of a fourth structure of the antenna device according to an embodiment of the present application.

[0019] Figure 5 This is a schematic diagram of a first resonant current of the antenna device according to an embodiment of the present application.

[0020] Figure 6 Schematic diagram of a second resonant current of the antenna device according to an embodiment of the present application.

[0021] Figure 7 Schematic diagram of a third resonant current of the antenna device according to an embodiment of the present application.

[0022] Figure 8 This is a schematic diagram of a first S parameter of the antenna device according to an embodiment of the present application.

[0023] Fig. 9 FIG. 1 is a schematic diagram of a first type of total system efficiency of an antenna device according to an embodiment of the present application.

[0024] Fig.10 This is a schematic diagram simulating a user using the antenna device according to an embodiment of the present application.

[0025] Fig.11 This is the radiation pattern of the antenna device according to the embodiment of the present application when operating in the B3 frequency band.

[0026] Fig.12 This is the radiation pattern of the antenna device according to the embodiment of the present application when operating in the B1 frequency band.

[0027] Fig.13 This is the directional diagram of the antenna device according to the embodiment of the present application when operating in WiFi communication.

[0028] Fig.14 Schematic diagram comparing the directional patterns of the antenna device according to the embodiment of the present application and the antenna in the related art when operating in the B3 frequency band.

[0029] Fig.15 It is a schematic diagram comparing the directional patterns of the antenna device according to the embodiment of the present application and the antenna in the related art when working in WiFi communication.

[0030] Fig.16 It is a schematic diagram of a second S parameter of the antenna device according to an embodiment of the present application.

[0031] Fig.17 FIG. 1 is a schematic diagram of a second system total efficiency of the antenna device according to an embodiment of the present application.

[0032] Fig.18 Schematic diagram comparing the total system efficiency of the antenna device according to the embodiment of the present application and the antenna in the related art.

[0033] Fig.19 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0034] 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.

[0035] The present application provides an antenna device, which can be applied to electronic devices, such as smart phones, tablet computers, gaming devices, AR (Augmented Reality) devices, laptop computers, desktop computing devices, and other devices with wireless communication functions.

[0036] refer to Figure 1 , Figure 1 1 is a schematic diagram of a first structure of an antenna device 100 according to an embodiment of the present application. The antenna device 100 includes a first radiator 10 and a second radiator 20. The first radiator 10 and the second radiator 20 are arranged at an interval.

[0037] 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 practical applications, the shapes of the first radiator 10 and the second radiator 20 can be long strips or "L" shapes.

[0038] The first radiator 10 is grounded. In some embodiments, the first radiator 10 includes a first end 11 and a second end 12. The first end 11 faces the second radiator 20. The second end 12 is grounded. For example, in practical applications, the second end 12 can be electrically connected to the system ground of the electronic device to achieve grounding.

[0039] There is a gap 30 between the second radiator 20 and the first radiator 10. The second radiator 20 is electromagnetically coupled with the first radiator 10 through the gap 30. The second radiator 20 is provided with a first feeding point 201, a second feeding point 202, and a grounding point 203 at intervals. The first feeding point 201, the second feeding point 202, and the grounding point 203 are successively away from the first radiator 10, that is, the distance between the first feeding point 201 and the first radiator 10 is smaller than the distance between the second feeding point 202 and the first radiator 10, and the distance between the second feeding point 202 and the first radiator 10 is smaller than the distance between the grounding point 203 and the first radiator 10. The grounding point 203 is grounded. For example, in practical applications, the grounding point 203 can be electrically connected to the system ground of the electronic device to achieve grounding.

[0040] In some embodiments, the second radiator 20 includes a third end 21 and a fourth end 22. The third end 21 faces the first radiator 10, for example, the first end 11 of the first radiator 10. The gap 30 is located between the third end 21 and the first end 11. The grounding point 203 is located at the fourth end 22.

[0041] Among them, the first feeding point 201 is used to feed the first excitation signal to excite the second radiator 20 to support the 5G (5th Generation Mobile Communication Technology) resonance mode, thereby radiating 5G wireless signals to the outside world and realizing 5G communication functions.

[0042] The second feeding point 202 is used to feed the second excitation signal to excite the second radiator 20 to support the intermediate frequency (MiddleBand, MB) resonance mode, and to excite the second radiator 20 and the first radiator 10 to jointly support the WiFi (Wireless-Fidelity) resonance mode. Among them, the intermediate frequency resonance mode is the 4G (4th Generation Mobile Communication Technology) resonance mode. Therefore, the second excitation signal can excite the second radiator 20 and the first radiator 10 to radiate 4G wireless signals and WiFi wireless signals to the outside world, and realize the 4G communication function and the WiFi communication function.

[0043] In some embodiments, the antenna device 100 further includes a first feed source 31 and a second feed source 32. In practical applications, the first feed source 31 and the second feed source 32 can be disposed on a circuit board of the electronic device, for example, on a main board, or on a separate small board.

[0044] The first feed source 31 is electrically connected to the first feeding point 201. The first feed source 31 is used to provide the first excitation signal and feed the first excitation signal to the second radiator 20 through the first feeding point 201. In practical applications, the first excitation signal may be a 5G excitation signal.

[0045] The second feed source 32 is electrically connected to the second feeding point 202. The second feed source 32 is used to provide the second excitation signal and feed the second excitation signal to the second radiator 20 through the second feeding point 202. In practical applications, the second excitation signal may include a 4G excitation signal and a WiFi excitation signal, for example, an LTE (Long Term Evolution) excitation signal and a WiFi excitation signal.

[0046] In some embodiments, reference Figure 2 , Figure 2 This is a schematic diagram of a second structure of the antenna device 100 according to an embodiment of the present application.

[0047] The first radiator 10 has a first length L1, which can be understood as the length between the first end 11 and the second end 12. A second length L2 is provided between the third end 21 of the second radiator 20 and the first feeding point 201, a third length L3 is provided between the first feeding point 201 and the second feeding point 202, and a fourth length L4 is provided between the second feeding point 202 and the grounding point 203.

[0048] In practical applications, the resonant frequency band of the 5G resonant mode can be adjusted by adjusting the first length L1 and the second length L2. The resonant frequency band of the intermediate frequency resonant mode can be adjusted by adjusting the first length L1, the second length L2, the third length L3, and the fourth length L4. Therefore, the first length L1, the second length L2, the third length L3, and the fourth length L4 can be set to appropriate sizes, so that the resonant frequency band of the 5G resonant mode and the resonant frequency band of the intermediate frequency resonant mode can be adjusted to the desired frequency band.

[0049] In some embodiments, reference Figure 3 , Figure 3 1 is a third structural schematic diagram of the antenna device 100 of the embodiment of the present application. The antenna device 100 further includes a first feeder 41 and a second feeder 42. In practical applications, the first feeder 41 and the second feeder 42 can be conductor structures such as metal springs, metal conductive columns, metal ejector pins, etc.

[0050] One end of the first feeding element 41 is connected to the first feeding point 201, for example, abutting the first feeding point 201, and the other end is electrically connected to the first feed source 31. Therefore, the first feed source 31 can be electrically connected to the first feeding point 201 through the first feeding element 41, so as to feed the first excitation signal to the second radiator 20 through the first feeding point 201.

[0051] One end of the second feeding element 42 is connected to the second feeding point 202, for example, abutting the second feeding point 202, and the other end is electrically connected to the second feed source 32. Therefore, the second feed source 32 can be electrically connected to the second feeding point 202 through the second feeding element 42, so as to feed the second excitation signal to the second radiator 20 through the second feeding point 202.

[0052] In some embodiments, reference Figure 4 , Figure 4 This is a fourth structural diagram of the antenna device 100 according to an embodiment of the present application. The antenna device 100 further includes a frequency band switching circuit 50 , and the frequency band switching circuit 50 includes a plurality of tuning paths and a switch 51 .

[0053] In some embodiments, the plurality of tuning paths may include four tuning paths, for example Figure 4The tuning paths a, b, c, and d are shown. It is understandable that in other embodiments, the number of tuning paths may be other numbers, such as 2, 3, 6, etc. Each tuning path is electrically connected to the second feeding point 202. In practical applications, each tuning path may include one or more impedance elements such as an inductor, a capacitor, and a resistor, and one tuning path among the multiple tuning paths may not include any impedance element. Different tuning paths have different impedances, for example, the impedances of the tuning paths a, b, c, and d are different from each other.

[0054] One end of the switching switch 51 is electrically connected to the second feed source 32. The other end of the switching switch 51 can connect any one of the tuning paths, for example, any one of the tuning paths a, b, c, and d, so that different impedances exist between the second feed source 32 and the second feeding point 202, so that the second radiator 20 supports different sub-bands of the intermediate frequency resonance mode. In practical applications, the switching switch 51 can be a switch with a single-pole multi-throw function formed by components such as transistors and switch tubes.

[0055] The various resonance modes of the antenna device 100 according to the embodiment of the present application are described in detail below.

[0056] refer to Figure 5 , Figure 5 Schematic diagram of a first resonant current of the antenna device 100 according to an embodiment of the present application.

[0057] When the first feed source 31 feeds the first excitation signal to the second radiator 20 through the first feeding point 201, the first excitation signal is used to excite the portion between the first feeding point 201 and the third end 21 of the second radiator 20 to support the 5G resonance mode. The 5G resonance mode generates a resonance current I1 on the second radiator 20, and the resonance current I1 is from the first feeding point 201 to the third end 21.

[0058] In some embodiments, the 5G resonance mode covers the N78 frequency band, wherein the frequency range of the N78 frequency band includes 3300 MHz to 3800 MHz.

[0059] refer to Figure 6 , Figure 6 Schematic diagram of a second resonant current of the antenna device 100 according to an embodiment of the present application.

[0060] When the second feed source 32 feeds the second excitation signal to the second radiator 20 through the second feeding point 202, the second excitation signal is used to excite the second radiator 20 between the second feeding point 202 and the grounding point 203 to support the intermediate frequency resonance mode. Among them, the intermediate frequency resonance mode generates a resonant current I2 on the second radiator 20, and the resonant current I2 is from the second feeding point 202 to the grounding point 203. In some embodiments, the frequency range covered by the intermediate frequency resonance mode includes 1710MHz~2170MHz. In practical applications, the intermediate frequency resonance mode can cover frequency bands such as B3 (uplink frequency 1710MHz~1785MHz, downlink frequency 1805MHz~1880MHz), B1 (uplink frequency 1920MHz~1980MHz, downlink frequency 2110MHz~2170MHz).

[0061] refer to Figure 7 , Figure 7 FIG. 1 is a schematic diagram of a third resonance current of the antenna device 100 according to an embodiment of the present application.

[0062] When the second feed source 32 feeds the second excitation signal to the second radiator 20 through the second feeding point 202, the second excitation signal is also used to excite the portion between the second feeding point 202 and the third end 21 and the first radiator 10 to jointly support the WiFi resonance mode. In the WiFi resonance mode, the portion between the second feeding point 202 and the third end 21 of the second radiator 20 generates a resonance current I3, and the first radiator 10 generates a resonance current I4. Among them, the resonance current I3 is recorded as the first resonance current, and the resonance current I4 is recorded as the second resonance current. The direction of the first resonance current I3 is the same as the direction of the second resonance current I4.

[0063] In some embodiments, the WiFi communication function implemented by the WiFi resonance mode complies with the 802.11b (wireless local area network standard) communication protocol. The frequency range covered by the WiFi resonance mode may include 2400 MHz to 2485 MHz.

[0064] refer to Figure 8 and Fig. 9 , Figure 8 Schematic diagram of a first S parameter of the antenna device 100 according to an embodiment of the present application. Fig. 9 It is a schematic diagram of a first system total efficiency of the antenna device 100 according to an embodiment of the present application.

[0065] like Figure 8As shown, curve S1 represents the S parameter curve of the 5G resonance mode under the excitation of the first excitation signal, and curve S2 represents the S parameter curve of the intermediate frequency resonance mode and the WiFi resonance mode under the excitation of the second excitation signal. Among them, marked point 1 and marked point 2 are both the resonance frequency points of the 5G resonance mode, the resonance frequency point corresponding to marked point 1 is about 3.3GHz, and the resonance frequency point corresponding to marked point 2 is about 3.8GHz. Marked point 3 and marked point 4 are both the resonance frequency points of the intermediate frequency resonance mode, the resonance frequency point corresponding to marked point 3 is about 1.71GHz, and the resonance frequency point corresponding to marked point 4 is about 1.88GHz. Marked point 5 and marked point 6 are both the resonance frequency points of the WiFi resonance mode, the resonance frequency point corresponding to marked point 5 is about 2.4GHz, and the resonance frequency point corresponding to marked point 6 is about 2.5GHz.

[0066] like Fig. 9 As shown, curve S3 represents the system total efficiency curve of the 5G resonance mode under the excitation of the first excitation signal, and curve S4 represents the system total efficiency curve of the intermediate frequency resonance mode and the WiFi resonance mode under the excitation of the second excitation signal.

[0067] Among them, mark point 1, mark point 2, and mark point 3 are all the resonant frequencies of the 5G resonant mode. The resonant frequency corresponding to mark point 1 is about 3.4GHz, and the total system efficiency is about -2.6434dB. The resonant frequency corresponding to mark point 2 is about 3.4877GHz, and the total system efficiency is about -2.0462dB. The resonant frequency corresponding to mark point 3 is about 3.6GHz, and the total system efficiency is about -2.8709dB.

[0068] Marking points 4, 5, and 6 are all resonant frequencies of the intermediate frequency resonant mode. The resonant frequency corresponding to marking point 4 is about 1.71 GHz, and the total system efficiency is about -4.3521 dB; the resonant frequency corresponding to marking point 5 is about 1.78 GHz, and the total system efficiency is about -2.0857 dB; the resonant frequency corresponding to marking point 6 is about 1.88 GHz, and the total system efficiency is about -4.4882 dB.

[0069] Marked points 7, 8, and 9 are all resonant frequencies of the WiFi resonant mode. The resonant frequency corresponding to marked point 7 is about 2.4GHz, and the total system efficiency is about -3.319dB; the resonant frequency corresponding to marked point 8 is about 2.4495GHz, and the total system efficiency is about -2.8907dB; the resonant frequency corresponding to marked point 9 is about 2.5GHz, and the total system efficiency is about -3.4931dB.

[0070] Depend on Figure 8 and Fig. 9 It can be seen that the antenna device 100 of the embodiment of the present application has good radiation efficiency in the 5G resonance mode, the intermediate frequency resonance mode, and the WiFi resonance mode.

[0071] In actual applications, when a user uses an electronic device, the user's hands and body will have an impact on the antenna device 100. Fig.10 , Fig.10 This is a schematic diagram of simulating a user using the antenna device 100 of an embodiment of the present application. In which, reference numeral 1 represents a simulated human torso, and reference numeral 2 represents a simulated human hand. The entire device can simulate the influence of the human torso and human hand on the antenna device 100 when the user uses the electronic device.

[0072] refer to Figures 11 to 13 , Fig.11 This is a directional diagram of the antenna device 100 according to an embodiment of the present application when operating in the B3 frequency band, where curve S5 represents a directivity curve; Fig.12 This is a directional diagram of the antenna device 100 according to the embodiment of the present application when operating in the B1 frequency band, where curve S6 represents a directivity curve; Fig.13 This is a directional diagram of the antenna device 100 according to the embodiment of the present application when working in WiFi communication. The curve S7 in the figure represents the directivity curve.

[0073] It can be seen from the directivity curves S5, S6 and S7 that when the antenna device 100 works in the B3 frequency band, the B1 frequency band or WiFi communication, it has good directivity in the range of 90 degrees to 270 degrees (ie, the direction the user is facing).

[0074] refer to Fig.14 , Fig.14 Schematic diagram comparing the directional patterns of the antenna device 100 according to the embodiment of the present application and the antenna in the related art when operating in the B3 frequency band.

[0075] Among them, curve S8 represents the directivity curve of the antenna device 100 of the embodiment of the present application when working in the B3 frequency band, and curve S9 represents the directivity curve of the antenna in the related art when working in the B3 frequency band. By comparing curve S8 with curve S9, it can be seen that in the B3 frequency band, the antenna device 100 of the embodiment of the present application has better radiation performance in the direction away from the human body, that is, 270 degrees to 330 degrees.

[0076] refer to Fig.15 , Fig.15 It is a schematic diagram comparing the directional patterns of the antenna device 100 according to the embodiment of the present application and the antenna in the related art when working in WiFi communication.

[0077] Among them, curve S10 represents the directivity curve of the antenna device 100 of the embodiment of the present application when working in WiFi communication, and curve S11 represents the directivity curve of the antenna in the related art when working in WiFi communication. By comparing curve S10 and curve S11, it can be seen that for WiFi communication, the antenna device 100 of the embodiment of the present application has better radiation performance in the direction away from the human body, that is, 270 degrees to 0 degrees.

[0078] refer to Fig.16 , Fig.16 Schematic diagram of the second S parameter of the antenna device 100 of the embodiment of the present application. When the antenna device 100 supports the intermediate frequency resonance mode under the excitation of the second excitation signal, the intermediate frequency resonance mode can cover the B3 band and the B1 band. In practical applications, the antenna device 100 can switch between the B3 band and the B1 band.

[0079] like Fig.16 As shown, curve S12 represents the S parameter curve of the 5G resonance mode under the excitation of the first excitation signal, curve S13 represents the S parameter curve of the B1 frequency band and the WiFi resonance mode under the excitation of the second excitation signal, and curve S14 represents the S parameter curve of the B3 frequency band and the WiFi resonance mode under the excitation of the second excitation signal. Fig.16 It can be seen that the antenna device 100 has good resonance characteristics in the B1 frequency band and the B3 frequency band of the intermediate frequency resonance mode, as well as the 5G resonance mode and the WiFi resonance mode.

[0080] refer to Fig.17 , Fig.17 Schematic diagram of the second system total efficiency of the antenna device 100 of the embodiment of the present application. Curve S15 represents the system total efficiency curve of the 5G resonance mode under the excitation of the first excitation signal, curve S16 represents the system total efficiency curve of the B1 frequency band and the WiFi resonance mode under the excitation of the second excitation signal, and curve S17 represents the system total efficiency curve of the B3 frequency band and the WiFi resonance mode under the excitation of the second excitation signal. Fig.17 It can be seen that the antenna device 100 has good overall system efficiency in the B1 band and the B3 band of the intermediate frequency resonance mode, as well as the 5G resonance mode and the WiFi resonance mode.

[0081] refer to Fig.18 , Fig.18The figure is a schematic diagram comparing the total system efficiency of the antenna device 100 of the embodiment of the present application with the antenna in the related art. Among them, curve S18 represents the total system efficiency of the antenna device 100 of the embodiment of the present application, and curve S19 represents the total system efficiency of the antenna in the related art. By comparing curve S18 and curve S19, it can be seen that in the B3 (1710MHz~1880MHz) frequency band of the intermediate frequency resonance mode and WiFi (2400MHz~2485MHz) communication, the antenna device 100 of the embodiment of the present application has better performance in terms of total system efficiency compared with the antenna in the related art, and the average efficiency improvement is about 2dB.

[0082] The antenna device 100 of the embodiment of the present application sets dual feeding points, that is, sets a first feeding point 201 and a second feeding point 202 on the second radiator 20, and feeds different excitation signals into each of the dual feeding points, thereby being able to stimulate different parts of the antenna device 100 to support different resonance modes, thereby reducing the influence of the human body on the radiation performance of the antenna device 100, being able to improve the radiation performance of the antenna device 100, and enhancing the stability of wireless communication.

[0083] The embodiment of the present application also provides an electronic device. The electronic device 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.

[0084] refer to Fig.19 , Fig.19 The electronic device includes an antenna device 100 , a main body 300 and a camera module 500 .

[0085] The main body 300 can form the overall outline of the electronic device and set various functional components of the electronic device. For example, the motherboard, battery and other functional components of the electronic device can be set inside the main body 300, and the display module, camera module and other functional components can be set on the main body 300.

[0086] The antenna device 100 is disposed in the main body 300, and the antenna device 100 is the antenna device of any of the above embodiments. The electronic device can realize wireless communication functions through the antenna device 100, such as 4G communication, 5G communication, WiFi communication and other functions.

[0087] The camera module 500 is disposed in the main body 300. For example, the lens of the camera module 500 may protrude from the main body 300, and the other parts may be disposed inside the main body 300. The camera module 500 may be used to realize functions such as taking pictures and recording videos. In some embodiments, the camera module 500 may be a rear camera module, and the rear camera module may be disposed in the upper left corner of the main body 300. In this case, Fig.19 The schematic diagram shown can be understood as a rear view schematic diagram of the electronic device.

[0088] In some embodiments, the main body 300 includes a first side 301, a second side 302, a third side 303, and a fourth side 304 connected end to end. The length of the first side 301 and the length of the third side 303 are both less than the length of the second side 302 and the length of the fourth side 304. Therefore, the first side 301 and the third side 303 can be understood as short sides, and the second side 302 and the fourth side 304 can be understood as long sides.

[0089] When the user holds the electronic device vertically, the first side 301 is usually located at the upper part, the third side 303 is located at the lower part, and the second side 302 and the fourth side 304 are located at the left and right sides. In this case, the user usually holds the lower part and the left and right sides close to the lower part, that is, the third side 303 is held by the user, and the second side 302 and the fourth side 304 close to the third side 303 are held by the user.

[0090] When the user holds the electronic device horizontally, such as playing games or watching TV shows horizontally, usually one of the second side 302 and the fourth side 304 is located at the upper part, the other is located at the lower part, and the first side 301 and the third side 303 are located at the left and right sides. In this case, the user usually holds the electronic device horizontally with both hands, and the user's hands are held at both ends, that is, the first side 301 and the third side 303 are held by the user's hands.

[0091] In the embodiment of the present application, the antenna device 100 is disposed on the second side 302 or the fourth side 304. Therefore, when the user holds the electronic device horizontally with both hands, since the antenna device 100 is disposed on the second side 302 or the fourth side 304, the antenna device 100 will not be held by the user's hands, which can ensure that the antenna device 100 has good radiation efficiency, improve the communication stability of the antenna device 100, and thus improve the communication stability of the electronic device.

[0092] In practical applications, such as Fig.19As shown, the rear camera module 500 can be arranged close to the fourth side 304. In this case, the antenna device 100 can be arranged on the fourth side 304. It can be understood that when the user actually uses the electronic device, when holding the electronic device horizontally with both hands, in order to improve the comfort of use, the side close to the rear camera module 500 is usually made to face outward or upward, that is, the side 304 close to the rear camera module 500 is far away from the user's body, and the antenna device 100 is also far away from the user's body, so that the influence of the human body trunk on the antenna device 100 can be reduced, and the communication stability of the antenna device 100 can be improved.

[0093] 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.

[0094] 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.

[0095] The antenna device and electronic device provided in the embodiments of the present application are described in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present application. 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 methods and application scope. In summary, the content of this specification should not be understood as limiting the present application.

Claims

1. An antenna device, characterized in that: include: a first radiator, wherein the first radiator is grounded; a second radiator, wherein a gap is provided between the second radiator and the first radiator, the second radiator is electromagnetically coupled with the first radiator through the gap, a first feeding point, a second feeding point, and a grounding point are arranged on the second radiator at intervals, the first feeding point, the second feeding point, and the grounding point are respectively away from the first radiator, and the grounding point is grounded; The first feeding point is used to feed a first excitation signal to excite the second radiator to support a 5G resonance mode; The second feeding point is used to feed a second excitation signal to excite the second radiator to support an intermediate frequency resonance mode, and to excite the second radiator and the first radiator to jointly support a WiFi resonance mode.

2. The antenna device according to claim 1, characterized in that: The first radiator comprises a first end and a second end, the first end faces the second radiator, and the second end is grounded; The second radiator includes a third end and a fourth end, the third end faces the first radiator, the gap is located between the third end and the first end, and the grounding point is located at the fourth end.

3. The antenna device according to claim 2, characterized in that The first excitation signal is used to excite the portion between the first feeding point and the third end to support the 5G resonance mode.

4. The antenna device according to claim 3, characterized in that: The 5G resonance mode covers the N78 frequency band, and the frequency range of the N78 frequency band includes 3300MHz to 3800MHz.

5. The antenna device according to claim 2, characterized in that: The second excitation signal is used to excite the portion between the second feeding point and the grounding point to support the intermediate frequency resonance mode, and the frequency range covered by the intermediate frequency resonance mode includes 1710 MHz to 2170 MHz.

6. The antenna device according to claim 2, characterized in that: The second excitation signal is used to excite the portion between the second feeding point and the third end and the first radiator to jointly support the WiFi resonance mode, and the frequency range covered by the WiFi resonance mode includes 2400 MHz to 2485 MHz.

7. The antenna device according to claim 6, characterized in that: In the WiFi resonance mode, a portion between the second feeding point and the third end generates a first resonance current, and the first radiator generates a second resonance current, and a direction of the first resonance current is the same as a direction of the second resonance current.

8. The antenna device according to any one of claims 1 to 7, characterized in that: Also includes: a first feed source, electrically connected to the first feeding point, the first feed source being used to provide the first excitation signal and feed the first excitation signal through the first feeding point; A second feed source is electrically connected to the second feeding point, and is used to provide the second excitation signal and feed the second excitation signal through the second feeding point.

9. The antenna device according to claim 8, characterized in that: It also includes a frequency band switching circuit, the frequency band switching circuit including: A plurality of tuning paths, each of the tuning paths being electrically connected to the second feeding point, and different tuning paths having different impedances; A switching switch, one end of which is electrically connected to the second feed source, and the other end of which is capable of connecting to any one of the tuning paths, so that the second radiator supports different sub-bands of the intermediate frequency resonance mode.

10. An electronic device, characterized in that: include: Main body; An antenna device, wherein the antenna device is arranged in the main body, and the antenna device is the antenna device according to any one of claims 1 to 9.

11. The electronic device according to claim 10, characterized in that: The main body comprises a first side, a second side, a third side, and a fourth side connected end to end in sequence, wherein the length of the first side and the length of the third side are both smaller than the length of the second side and the length of the fourth side; The antenna device is disposed on the second side or the fourth side.

12. The electronic device according to claim 11, characterized in that: Also includes: A rear camera module, wherein the rear camera module is disposed on the main body and is close to the fourth side; The antenna device is disposed on the fourth side.

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