Antenna assembly and electronic device

Abstract

Embodiments of the present application provide an antenna assembly and an electronic device. The antenna assembly comprises: a loop antenna, a polarization direction of the loop antenna being along a first direction; a slot antenna, a polarization direction of the slot antenna being along a second direction; wherein the first direction is perpendicular to the second direction, a current distribution of the loop antenna is symmetrically distributed along a symmetry axis of the loop antenna, a current distribution of the slot antenna is symmetrically distributed along a symmetry axis of the slot antenna, and the symmetry axis of the loop antenna and the symmetry axis of the slot antenna are both perpendicular to the first direction. In the antenna assembly, electromagnetic energy on the loop antenna coupled by two parts of current on both sides of the symmetry axis of the slot antenna can be or mostly be cancelled out, so that the energy coupling between the slot antenna and the loop antenna can be reduced, and the slot antenna and the loop antenna have high isolation, and thus the isolation between the two antennas of the antenna assembly can be improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of communication, in particular to an antenna assembly and an electronic device. BACKGROUND

[0002] Electronic devices such as smart phones usually have multiple antennas, for example, 4G antennas, 5G antennas, Wi-Fi antennas, Bluetooth antennas, and the like. As electronic devices such as smart phones become more and more miniaturized and lightweight, the distance between different antennas becomes smaller and smaller. Therefore, how to ensure the isolation between adjacent antennas has become a problem in antenna design. SUMMARY

[0003] The embodiments of the present application provide an antenna assembly and an electronic device, which can improve the isolation between two antennas of the antenna assembly.

[0004] The embodiments of the present application provide an antenna assembly, comprising:

[0005] a loop antenna, a polarization direction of the loop antenna being along a first direction;

[0006] a slot antenna, a polarization direction of the slot antenna being along a second direction;

[0007] wherein the first direction is perpendicular to the second direction, a current distribution of the loop antenna is symmetrically distributed along a symmetry axis of the loop antenna, a current distribution of the slot antenna is symmetrically distributed along a symmetry axis of the slot antenna, and the symmetry axis of the loop antenna and the symmetry axis of the slot antenna are both perpendicular to the first direction.

[0008] The embodiments of the present application also provide an electronic device, comprising:

[0009] a housing;

[0010] an antenna assembly, the antenna assembly being arranged in the housing, and the antenna assembly being the above-mentioned antenna assembly.

[0011] The antenna assembly provided in this application embodiment has a symmetrical current distribution along the axis of symmetry of both the loop antenna and the slot antenna. Furthermore, the axes of symmetry of both the loop antenna and the slot antenna are perpendicular to the polarization direction of the loop antenna. This results in the electromagnetic energy amplitudes of the two currents on either side of the axis of symmetry of the slot antenna being coupled to the loop antenna being the same or substantially the same, and having opposite phases. Therefore, the electromagnetic energy coupled to the loop antenna by the two currents on either side of the axis of symmetry of the slot antenna will cancel each other out or largely cancel each other out, thereby reducing the energy coupling between the slot antenna and the loop antenna and achieving high isolation between them. This improves the isolation between the two antennas in the antenna assembly. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

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

[0014] Figure 2 This is a schematic diagram of a first structure of an antenna assembly provided in an embodiment of this application.

[0015] Figure 3 for Figure 2 The diagram shows the current distribution of the antenna assembly.

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

[0017] Figure 5 This is a schematic diagram of a third structure of the antenna assembly provided in an embodiment of this application.

[0018] Figure 6 This is a schematic diagram of a fourth structure of the antenna assembly provided in an embodiment of this application.

[0019] Figure 7 This is a schematic diagram of the fifth structure of the antenna assembly provided in the embodiments of this application.

[0020] Figure 8 This is a sixth structural schematic diagram of the antenna assembly provided in the embodiments of this application.

[0021] Figure 9 This is an example diagram illustrating the application of the antenna assembly provided in the embodiments of this application.

[0022] Figure 10 For Figure 9 A local enlarged schematic view of the A region in FIG. 1.

[0023] Figure 11 Another application example diagram of the antenna assembly provided by the embodiment of the present application.

[0024] Figure 12 For Figure 11 A local enlarged schematic view of the B region in FIG. 1.

[0025] Figure 13 A S parameter simulation result diagram of the antenna assembly provided by the 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 with reference to the 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 the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0027] The embodiment of the present application provides an electronic device. The electronic device can be a smart phone, a tablet computer and the like, and can also be a game device, an AR (Augmented Reality) device, a car, a data storage device, an audio playing device, a video playing device, a notebook computer, a desktop computing device and the like.

[0028] Reference Figure 1 , Figure 1 A structural diagram of the electronic device 100 provided by the embodiment of the present application.

[0029] The electronic device 100 includes a housing 10 and an antenna assembly 20. The antenna assembly 20 is mounted on the housing 10. The antenna assembly 20 can emit and receive wireless signals, for example, can emit and receive 4G signals, 5G signals, Wi-Fi (Wireless Fidelity) signals, Bluetooth signals, and can receive GPS (Global Positioning System) signals and the like, to realize corresponding communication functions.

[0030] In some embodiments, the shell 10 includes a metal middle frame 11 and a battery cover 12. The metal middle frame 11 forms the overall frame of the electronic device 100 and is used to arrange functional components of the electronic device, such as the camera, circuit board, sensor, and other functional components of the electronic device 100. The metal middle frame 11 can be made of materials such as aluminum alloy, magnesium alloy, etc. The battery cover 12 is connected to the metal middle frame 11. The battery cover 12 forms the back shell of the electronic device 100.

[0031] Reference Figure 2 , Figure 2 The first structure diagram of the antenna assembly 20 provided by the embodiments of the present application is shown. The antenna assembly 20 includes a loop antenna 21 and a slot antenna 22.

[0032] The loop antenna 21 can be formed by a conductor, for example, it can be formed by a magnesium alloy, an FPC (Flexible Printed Circuit), etc.

[0033] The slot antenna 22 can be formed by a conductor structure, for example, it can be formed by a conductor structure 221. The conductor structure 221 can be a conductor layer made of materials such as magnesium alloy, aluminum alloy, etc., or a copper-plated layer formed on a substrate, etc.

[0034] Figure 2 The Y direction is defined as the first direction, and the X direction is defined as the second direction. The first direction Y is perpendicular to the second direction X. The first direction can be a horizontal direction, and the second direction can be a vertical direction. It should be noted that although the Y direction is shown as pointing to the left, in other embodiments, the Y direction can also point to the right. Figure 2 The loop antenna 21 has an axis of symmetry P1, and the slot antenna 22 has an axis of symmetry P2. The axis of symmetry P1 of the loop antenna 21 and the axis of symmetry P2 of the slot antenna 22 are perpendicular to the first direction Y. It should be noted that the axis of symmetry P1 and the axis of symmetry P2 are only logical definitions, and there is no such structure as the axis of symmetry P1 and the axis of symmetry P2 on the actual antenna assembly 20.

[0035] In the embodiments of the present application, the loop antenna 21 can be configured to transmit one of 4G signals, 5G signals, Wi-Fi signals, Bluetooth signals, and GPS signals, and the slot antenna 22 can be configured to transmit another one of 4G signals, 5G signals, Wi-Fi signals, Bluetooth signals, and GPS signals. For example, the loop antenna 21 can be configured to transmit Wi-Fi signals, and the slot antenna 22 can be configured to transmit Bluetooth signals.

[0036] In some embodiments, the loop antenna 21 can operate in a single-wavelength mode, and the slot antenna 22 can operate in a half-wavelength mode.

[0037] Also refer to Figure 3 , Figure 3 for Figure 2 A schematic diagram of the current distribution of the antenna assembly 20 shown.

[0038] The current distribution of the loop antenna 21 is mainly distributed along the first direction Y, therefore the polarization direction of the loop antenna 21 is along the first direction. The current distribution of the loop antenna 21 is symmetrically distributed along the axis of symmetry P1.

[0039] As is understandable, the overall structure of the loop antenna 21 is loop-shaped, so the two parts of the loop antenna 21 located on both sides of the axis of symmetry P1 can be arranged in a centrally symmetrical manner. At this time, the loop antenna 21 forms a centrally symmetrical antenna structure.

[0040] The current in the slot antenna 22 is mainly distributed around the slot 222, and the current distribution of the slot antenna 22 is symmetrically distributed along the axis of symmetry P2. Specifically, the current distribution at the two ends furthest from the axis of symmetry P2 is in the same direction, both along the second direction X, and symmetrically distributed about the axis of symmetry P2. The current distribution in the Y direction on both sides of the slot 222 is divided into two parts along the axis of symmetry P2, and the current distribution of the two parts is symmetrically distributed about the axis of symmetry P2, and both are either towards or away from the axis of symmetry P2, that is, the current directions on both sides of the axis of symmetry P2 are opposite. For example, as... Figure 3 As shown, the current distribution on both sides of the symmetry axis P2 on one side of slot 222 is oriented towards symmetry axis P2, while the current distribution on both sides of the symmetry axis P2 on the other side of slot 222 is oriented away from symmetry axis P2. Therefore, the current distributions of the slot antenna 22 along the Y direction cancel each other out, and the overall current distribution is along the X direction. Consequently, the polarization direction of the slot antenna 22 is along the X direction.

[0041] Therefore, the electromagnetic energy amplitudes of the two current components of the slot antenna 22 coupled to the loop antenna 21 on both sides of the axis of symmetry P2 are the same or substantially the same, and their phases differ by 180°, i.e., they are opposite in phase. Consequently, the electromagnetic energy coupled to the loop antenna 21 by the two current components of the slot antenna 22 on both sides of the axis of symmetry P2 will cancel each other out or largely cancel each other out, thereby reducing the energy coupling between the slot antenna 22 and the loop antenna 21 and achieving high isolation between them. This, in turn, improves the isolation between the two antennas of the antenna assembly 20.

[0042] It can be understood that the slot antenna 22 is formed by opening the slot 222 on the conductor structure 221, and the overall structure of the slot antenna 22 is also annular, so the two parts of the slot antenna 22 located on both sides of the symmetry axis P2 can also be centrally symmetric. At this time, the slot antenna 22 is also formed as a centrally symmetric antenna structure.

[0043] In actual application, when the frequency bands of the wireless signals transmitted by the annular antenna 21 and the wireless signals transmitted by the slot antenna 22 are close or there is frequency overlap, for example, when the annular antenna 21 transmits Wi-Fi signals and the slot antenna 22 transmits Bluetooth signals, improving the isolation between the annular antenna 21 and the slot antenna 22 can reduce the interference between the two antennas, thereby significantly improving the performance of the two antennas and improving the stability of the transmitted wireless signals.

[0044] In some embodiments, with reference to Figure 4 , Figure 4 A second structural schematic diagram of the antenna assembly 20 provided by the embodiments of the present application is provided.

[0045] The slot 222 provided on the slot antenna 22 includes a first sub-slot 2221, a second sub-slot 2222, and a third sub-slot 2223 that are sequentially connected. The width of the second sub-slot 2222 along the second direction X is smaller than the width of the first sub-slot 2221 along the second direction X and the width of the third sub-slot 2223 along the second direction X. That is, the overall shape of the slot 222 is narrow in the middle and wide at both ends.

[0046] It can be understood that by setting the slot 222 to be narrow in the middle and wide at both ends, the distance between the conductor structures on both sides of the middle part (i.e., the second sub-slot 2222) of the slot 222 can be smaller, so that the conductor structures on both sides of the second sub-slot 2222 can better form a current loop, which is conducive to the slot antenna 22 forming one current loop on each side of the symmetry axis P2, so that the current directions of the two parts of the slot antenna 22 distributed on both sides of the symmetry axis P2 are opposite.

[0047] In some embodiments, with reference to Figure 5 , Figure 5 A third structural schematic diagram of the antenna assembly 20 provided by the embodiments of the present application is provided.

[0048] The annular antenna 21 includes a first feeding point 211 and a second feeding point 212, both of which are configured to feed the annular antenna 21. In some embodiments, the first feeding point 211 and the second feeding point 212 can be distributed at the two ends of the annular antenna 21 along the first direction Y, as Figure 5 shown.

[0049] The antenna assembly 20 further comprises a first feeding structure 23 configured to feed the loop antenna 21. The first feeding structure 23 comprises a first feeding branch 231 outputting a first excitation signal and a second feeding branch 232 outputting a second excitation signal. The first excitation signal and the second excitation signal are of the same signal type, for example, both are Wi-Fi excitation signals or both are Bluetooth excitation signals, etc. The first excitation signal and the second excitation signal are opposite in phase, for example, the first excitation signal is 0° in phase and the second excitation signal is 180° in phase.

[0050] The first feeding branch 231 is electrically connected with the first feeding point 211 to feed the first excitation signal to the first feeding point 211. The second feeding branch 232 is electrically connected with the second feeding point 212 to feed the second excitation signal to the second feeding point 212. Thus, the loop antenna 21 can emit and receive wireless signals.

[0051] It can be understood that in actual application, the first feeding branch 231 and the first feeding point 211 can be electrically connected through abutment or electromagnetic coupling. For example, the first feeding branch 231 can be directly welded on the first feeding point 211 to realize electrical connection. For another example, the first feeding branch 231 can be arranged apart from the first feeding point 211 to realize electromagnetic coupling between the first feeding branch 231 and the first feeding point 211, thereby realizing electrical connection.

[0052] Similarly, the second feeding branch 232 and the second feeding point 212 can also be electrically connected through abutment or electromagnetic coupling.

[0053] In some embodiments, continuing to refer to Figure 5 The antenna assembly 20 further comprises a first feeding source 241 configured to generate an excitation signal, for example, a Wi-Fi excitation signal, a Bluetooth excitation signal, etc. The first feeding source 241 is connected with the first feeding branch 231 and the second feeding branch 232 through the phase shift power divider 25, so that the first excitation signal and the second excitation signal are generated through the phase shift power divider 25.

[0054] It can be understood that the first feeding source 241 can be arranged on a circuit board of the electronic device 100, or can also be arranged on a separate small board.

[0055] In some embodiments, referring to Figure 6 , Figure 6 A fourth structural schematic diagram of the antenna assembly 20 provided by the embodiments of the present application is shown.

[0056] Figure 6 The antenna assembly 20 shown in the figure is the same as the antenna assembly 20 shown in the first structural schematic diagram. Figure 5The difference of the shown antenna assembly 20 is that the antenna assembly 20 comprises a second feed source 242 and a third feed source 243. The second feed source 242 and the third feed source 243 are both configured to generate an excitation signal, for example, a Wi-Fi excitation signal, a Bluetooth excitation signal, etc.

[0057] The second feed source 242 is electrically connected with the first feeding branch 231 to provide the first excitation signal to the first feeding branch 231. The third feed source 243 is electrically connected with the second feeding branch 232 to provide the second excitation signal to the second feeding branch 232.

[0058] It can be understood that the second feed source 242 and the third feed source 243 can be arranged on the circuit board of the electronic device 100, or can also be arranged on a separate small board.

[0059] In some embodiments, continuing to refer to Figure 5 , the antenna assembly 20 further comprises a second feeding structure 26. The second feeding structure 26 is electrically connected with the slot antenna 22, so that the second feeding structure 26 can be configured to feed the excitation signal to the slot antenna 22, for example, feed the Wi-Fi excitation signal or the Bluetooth excitation signal to the slot antenna 22.

[0060] It can be understood that the second feeding structure 26 can be electrically connected with the slot antenna 22 by abutting or electromagnetic coupling. For example, the second feeding structure 26 can be directly welded on the conductor structure 221 close to the slot 222 to realize electrical connection. For another example, the second feeding structure 26 can be arranged in a spaced manner with the conductor structure 221 and arranged opposite to the symmetry axis P2 of the slot antenna 22 to realize electromagnetic coupling between the second feeding structure 26 and the slot antenna 22, so as to realize electrical connection.

[0061] In some embodiments, continuing to refer to Figure 5 , the antenna assembly 20 further comprises a fourth feed source 271. The fourth feed source 271 is configured to generate the third excitation signal described above. The fourth feed source 271 is connected with the second feeding structure 26, so that the third excitation signal can be fed to the slot antenna 22 through the second feeding structure 26.

[0062] In some embodiments, referring to Figure 7 , Figure 7 A fifth structure schematic diagram of the antenna assembly 20 provided by the embodiments of the present application is shown.

[0063] The slot antenna 22 includes a third feeding point 223 and a fourth feeding point 224, both of which are configured to feed the slot antenna 22. In some embodiments, the third feeding point 223 and the fourth feeding point 224 can be distributed along the first direction Y at both ends of the slot antenna 22, for example, on the conductor structure 221 at both ends of the slot 222, as shown in Figure 7 .

[0064] The second feeding structure 26 includes a third feeding branch 261 and a fourth feeding branch 262, the third feeding branch 261 outputs a third excitation signal, and the fourth feeding branch 262 outputs a fourth excitation signal. The signal types of the third excitation signal and the fourth excitation signal are the same, for example, both are Wi-Fi excitation signals or both are Bluetooth excitation signals, etc. The third excitation signal and the fourth excitation signal have the same phase, for example, both have a phase of 0°.

[0065] The third feeding branch 261 is electrically connected to the third feeding point 223 to feed the third feeding point 223 with the third excitation signal. The fourth feeding branch 262 is electrically connected to the fourth feeding point 224 to feed the fourth feeding point 224 with the fourth excitation signal. Thus, the slot antenna 22 can transmit and receive wireless signals.

[0066] It can be understood that in actual applications, the third feeding branch 261 and the third feeding point 223 can be electrically connected through abutment or electromagnetic coupling, and the fourth feeding branch 262 and the fourth feeding point 224 can also be electrically connected through abutment or electromagnetic coupling, which will not be described here.

[0067] In some embodiments, the fourth feed source 271 is connected to the third feeding branch 261 and the fourth feeding branch 262 through the in-phase power divider 28, generates the third excitation signal and the fourth excitation signal through the in-phase power divider 28, feeds the third feeding point 223 with the third excitation signal through the third feeding branch 261, and feeds the fourth feeding point 224 with the fourth excitation signal through the fourth feeding branch 262.

[0068] It can be understood that the fourth feed source 271 can be arranged on the circuit board of the electronic device 100, or can also be arranged on a separate small board.

[0069] In some embodiments, referring to Figure 8 , Figure 8 a sixth structural schematic diagram of the antenna assembly 20 provided by the embodiments of the present application.

[0070] Figure 8 the antenna assembly 20 shown in Figure 7The antenna assembly 20 shown differs in that the antenna assembly 20 comprises a fifth feed 272 and a sixth feed 273. The fifth feed 272 and the sixth feed 273 are both configured to generate an excitation signal, for example a Wi-Fi excitation signal, a Bluetooth excitation signal, etc.

[0071] The fifth feed 272 is electrically connected to the third feeding branch 261 to provide the third excitation signal to the third feeding branch 261. The sixth feed 273 is electrically connected to the fourth feeding branch 262 to provide the fourth excitation signal to the fourth feeding branch 262.

[0072] It can be understood that the fifth feed 272 and the sixth feed 273 can be provided on a circuit board of the electronic device 100, or can also be provided on a separate small board.

[0073] In some embodiments, reference is made to Figures 9 to 12 wherein Figure 9 An application example diagram of the antenna assembly 20 provided by the embodiments of the present application is shown in Figure 10 is Figure 9 A partial enlarged view of the A area in Figure 11 Another application example diagram of the antenna assembly 20 provided by the embodiments of the present application is shown in Figure 12 is Figure 11 A partial enlarged view of the B area in

[0074] It can be understood that the antenna assembly 20 is mounted to the shell of the electronic device 100. Therefore, in actual application, in order to facilitate the installation of the antenna assembly 20, the loop antenna 21 and the slot antenna 22 can not be provided on the same plane, but can be at an angle, or can be perpendicular to each other.

[0075] The antenna assembly 20 further comprises a first substrate 29 and a second substrate 31. The first substrate 29 and the second substrate 31 can both be FR4 epoxy resin substrates. The loop antenna 21 is provided on the first substrate 29, and the slot antenna 22 is provided on the second substrate 31.

[0076] In some embodiments, the first substrate 29 and the second substrate 31 are perpendicular, so that the plane in which the loop antenna 21 is located is also perpendicular to the plane in which the slot antenna 22 is located.

[0077] It can be understood that the first feeding structure 23 can be provided on the second substrate 31, for example, the first feeding structure 23 can comprise a printed circuit formed on the surface of the second substrate 31. In some embodiments, the slot antenna 22 and the first feeding structure 23 can be formed on two opposite surfaces of the second substrate 31, as shown in Figure 11 , Figure 12 .

[0078] The second power supply structure 26 may also be disposed on the second substrate 31. For example, the second power supply structure 26 may include printed lines formed on the surface of the second substrate 31, or include an FPC disposed on the surface of the second substrate 31. In some embodiments, the second power supply structure 26 may be disposed on the same surface of the second substrate 31 as the first power supply structure 23. For example, the first power supply structure 23 may be formed around the second power supply structure 26. Figure 11 , Figure 12 As shown.

[0079] refer to Figure 13 , Figure 13 This is a schematic diagram of the S-parameter simulation results of the antenna assembly 20 provided in this embodiment. The schematic diagram includes curves showing the variation of parameters S1.1, S1.2, S2.1, and S2.2 with frequency. As can be seen from the schematic diagram, the antenna assembly 20 has an isolation of 40dB in the 2.4GHz to 2.5GHz frequency band, thus providing good isolation between the loop antenna 21 and the slot antenna 22.

[0080] Therefore, in the antenna assembly 20 provided in this application embodiment, since the current distribution of the loop antenna 21 is symmetrically distributed along the axis of symmetry P1 of the loop antenna 21, and the current distribution of the slot antenna 22 is also symmetrically distributed along the axis of symmetry P2 of the slot antenna 22, and the axes of symmetry P1 of the loop antenna 21 and the axis of symmetry P2 of the slot antenna 22 are both perpendicular to the polarization direction of the loop antenna 21, the electromagnetic energy amplitudes of the two parts of the current of the slot antenna 22 on both sides of the axis of symmetry P2 coupled to the loop antenna 21 are the same or basically the same, and the phases are opposite. Therefore, the electromagnetic energy of the two parts of the current of the slot antenna 22 on both sides of the axis of symmetry P2 coupled to the loop antenna 21 will cancel each other out or mostly cancel each other out, thereby reducing the energy coupling between the slot antenna 22 and the loop antenna 21, and making the slot antenna 22 and the loop antenna 21 have high isolation, thus improving the isolation between the two antennas of the antenna assembly 20.

[0081] In the description of this application, it should be understood that terms such as “first” and “second” are used only to distinguish similar objects and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.

[0082] The antenna components and electronic devices provided in the embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application, and the descriptions of the embodiments above are only for the purpose of helping to understand this application. Furthermore, those skilled in the art will recognize that, based on the ideas of this application, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. An antenna assembly, characterized by Comprise: a loop antenna, a polarization direction of the loop antenna is along a first direction, the loop antenna has a first symmetry axis; a slot antenna, a polarization direction of the slot antenna is along a second direction, the slot antenna has a second symmetry axis; Wherein, the first direction is perpendicular to the second direction, the current distribution of the loop antenna is symmetrically distributed along the first direction and the first symmetry axis of the loop antenna, the current distribution of the slot antenna is symmetrically distributed along the second symmetry axis of the slot antenna, the current distribution directions of the two end parts away from the second symmetry axis are the same and along the second direction, the current distribution of the slot on one side of the slot and on both sides of the second symmetry axis is towards the second symmetry axis, and the current distribution of the slot on the other side of the slot and on both sides of the second symmetry axis is away from the second symmetry axis; the first symmetry axis of the loop antenna and the second symmetry axis of the slot antenna are both perpendicular to the first direction.

2. The antenna assembly of claim 1, wherein, The slot antenna comprises a conductor structure, and a slot is formed on the conductor structure, the slot comprises a first sub-slot, a second sub-slot and a third sub-slot connected in sequence, and the width of the second sub-slot along the second direction is smaller than the width of the first sub-slot along the second direction and the width of the third sub-slot along the second direction.

3. The antenna assembly according to claim 1 or 2, characterized in that: The loop antenna comprises a first feeding point and a second feeding point; The antenna assembly further comprises a first feeding structure, the first feeding structure comprises a first feeding branch and a second feeding branch, and a first excitation signal output by the first feeding branch is opposite in phase to a second excitation signal output by the second feeding branch; Wherein, the first feeding branch is electrically connected with the first feeding point to feed in the first excitation signal, and the second feeding branch is electrically connected with the second feeding point to feed in the second excitation signal.

4. The antenna assembly according to claim 3, characterized in that: The first feeding branch is in abutment or electromagnetic coupling with the first feeding point to realize electrical connection; The second feeding branch is in abutment or electromagnetic coupling with the second feeding point to realize electrical connection.

5. The antenna assembly of claim 3, wherein, The first feeding point and the second feeding point are distributed at two ends of the loop antenna along the first direction.

6. The antenna assembly of claim 3, wherein, Further comprise: A first feed source, the first feed source is connected with the first feeding branch and the second feeding branch through a phase shift power divider to provide the first excitation signal to the first feeding branch and the second excitation signal to the second feeding branch.

7. The antenna assembly of claim 3, wherein, Further comprise: A second feed source, electrically connected with the first feeding branch to provide the first excitation signal to the first feeding branch; A third feed source, electrically connected with the second feeding branch to provide the second excitation signal to the second feeding branch.

8. The antenna assembly according to claim 1 or 2, characterized in that: The slot antenna comprises a third feeding point and a fourth feeding point; The antenna assembly further comprises a second feeding structure, the second feeding structure comprising a third feeding branch and a fourth feeding branch, a third excitation signal outputted by the third feeding branch having a same phase as a fourth excitation signal outputted by the fourth feeding branch; wherein the third feeding branch is electrically connected with the third feeding point to feed the third excitation signal, and the fourth feeding branch is electrically connected with the fourth feeding point to feed the fourth excitation signal.

9. The antenna assembly of claim 8, wherein, Further comprising: a fourth feeding source, the fourth feeding source being connected with the third feeding branch and the fourth feeding branch through an in-phase power divider.

10. The antenna assembly of claim 8, wherein, Further comprising: a fifth feeding source, the fifth feeding source being electrically connected with the third feeding branch to provide the third excitation signal to the third feeding branch; a sixth feeding source, the sixth feeding source being electrically connected with the fourth feeding branch to provide the fourth excitation signal to the fourth feeding branch.

11. The antenna assembly of claim 1 or 2, wherein, The loop antenna operates in a one-wavelength mode, and the slot antenna operates in a one-half wavelength mode.

12. The antenna assembly of claim 1 or 2, wherein, Further comprising: a first substrate, the loop antenna being disposed on the first substrate; a second substrate, the slot antenna being disposed on the second substrate.

13. The antenna assembly of claim 12, wherein, The first substrate is perpendicular to the second substrate, and a plane in which the loop antenna is located is perpendicular to a plane in which the slot antenna is located.

14. An electronic device, comprising: Comprising: a housing; an antenna assembly, the antenna assembly being disposed in the housing, the antenna assembly being any one of the antenna assemblies according to claims 1 to 13.

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