CN115911827A - Antenna components and electronics - Google Patents

Abstract

An embodiment of the present application provides an antenna assembly and an electronic device. The antenna assembly includes: a loop antenna, the polarization direction of the loop antenna is along a first direction; a slot antenna, and the polarization direction of the slot antenna is along a second direction; wherein , the first direction is perpendicular to the second direction, the current distribution of the loop antenna is symmetrical along the symmetry axis of the loop antenna, and the current distribution of the slot antenna is symmetric along the symmetry axis of the slot antenna distribution, 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, the electromagnetic energy that is coupled to the loop antenna by the two parts of the current on both sides of the symmetry axis of the slot antenna will cancel each other or mostly cancel each other, thereby reducing the energy coupling between the slot antenna and the loop antenna. The slot antenna has high isolation from the loop antenna, so the isolation between the two antennas of the antenna assembly can be improved.

Description

Antenna components and electronics

technical field

The present application relates to the technical field of communications, and in particular to an antenna assembly and electronic equipment.

Background technique

Electronic devices such as smart phones are usually provided with multiple antennas, such as 4G antennas, 5G antennas, Wi-Fi (Wireless Fidelity, wireless fidelity) antennas, Bluetooth antennas, and the like. As electronic devices such as smartphones become smaller and thinner, the distance between different antennas becomes smaller and smaller. Therefore, how to ensure the isolation between adjacent antennas becomes a difficult problem in antenna design.

Contents of the invention

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.

An embodiment of the present application provides an antenna assembly, including:

a loop antenna, the polarization direction of the loop antenna is along the first direction;

a slot antenna, the polarization direction of the slot antenna is along the second direction;

Wherein, the first direction is perpendicular to the second direction, the current distribution of the loop antenna is symmetrical along the symmetry axis of the loop antenna, and the current distribution of the slot antenna is symmetric along the symmetry axis of the slot antenna. Symmetrical distribution, the symmetry axis of the loop antenna and the symmetry axis of the slot antenna are both perpendicular to the first direction.

The embodiment of the present application also provides an electronic device, including:

case;

An antenna assembly, the antenna assembly is disposed on the casing, and the antenna assembly is the above-mentioned antenna assembly.

In the antenna assembly provided by the embodiment of the present application, since the current distribution of the loop antenna is symmetrically distributed along the symmetry axis of the loop antenna, the current distribution of the slot antenna is also symmetrically distributed along the symmetry axis of the slot antenna, and the symmetry axis of the loop antenna, the slot antenna The symmetry axis of the slot antenna is perpendicular to the polarization direction of the loop antenna, so that the two parts of the slot antenna located on both sides of the symmetry axis are coupled to the electromagnetic energy amplitude of the loop antenna with the same or basically the same amplitude, and the phase is opposite, so the symmetry axis of the slot antenna is two The electromagnetic energy coupled to the loop antenna by the two parts of the current on the side will cancel each other or most of them will cancel each other, so that the energy coupling between the slot antenna and the loop antenna can be reduced, so that the slot antenna and the loop antenna have high isolation. Therefore, the degree of isolation between the two antennas of the antenna assembly can be improved.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings that need to be used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of an electronic device provided by an embodiment of the present application.

FIG. 2 is a schematic diagram of a first structure of an antenna assembly provided by an embodiment of the present application.

FIG. 3 is a schematic diagram of current distribution of the antenna assembly shown in FIG. 2 .

FIG. 4 is a schematic diagram of a second structure of an antenna assembly provided by an embodiment of the present application.

FIG. 5 is a schematic diagram of a third structure of an antenna assembly provided by an embodiment of the present application.

FIG. 6 is a schematic diagram of a fourth structure of an antenna assembly provided by an embodiment of the present application.

FIG. 7 is a schematic diagram of a fifth structure of an antenna assembly provided by an embodiment of the present application.

FIG. 8 is a schematic diagram of a sixth structure of an antenna assembly provided by an embodiment of the present application.

FIG. 9 is a diagram of an application example of the antenna assembly provided by the embodiment of the present application.

FIG. 10 is a partially enlarged schematic diagram of area A in FIG. 9 .

FIG. 11 is an application example diagram of another perspective of the antenna assembly provided by the embodiment of the present application.

FIG. 12 is a partially enlarged schematic diagram of area B in FIG. 11 .

Fig. 13 is a schematic diagram of the S-parameter simulation results of the antenna assembly provided by the embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Apparently, the described embodiments are only some of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of this application.

An embodiment of the present application provides an electronic device. The electronic device may be a device such as a smart phone or a tablet computer, and may also be a game device, an AR (Augmented Reality, augmented reality) device, a car, a data storage device, an audio playback device, a video playback device, a notebook computer, a desktop computing device, etc. .

Referring to FIG. 1 , FIG. 1 is a schematic structural diagram of an electronic device 100 provided by an embodiment of the present application.

The electronic device 100 includes a casing 10 and an antenna assembly 20 . The antenna assembly 20 is mounted on the casing 10 . Wherein, the antenna assembly 20 can transmit and receive wireless signals, for example, can transmit and receive 4G signals, 5G signals, Wi-Fi (Wireless Fidelity, wireless fidelity) signals, Bluetooth signals, and can receive GPS (Global Positioning System, Global Positioning System) Signals, etc., to achieve the corresponding communication functions.

In some embodiments, the casing 10 includes a metal middle frame 11 and a battery cover 12 . Among them, the metal middle frame 11 forms the overall frame of the electronic device 100 and is used to set functional components of the electronic device, for example, functional components such as a camera, a circuit board, and a sensor of the electronic device 100 can be set on the metal middle frame 11 . The material of the metal middle frame 11 can be, for example, aluminum alloy, magnesium alloy and the like. The battery cover 12 is connected to the metal middle frame 11 . The battery cover 12 forms a rear case of the electronic device 100 .

Referring to FIG. 2 , FIG. 2 is a schematic diagram of a first structure of an antenna assembly 20 provided in an embodiment of the present application. The antenna assembly 20 includes a loop antenna 21 and a slot antenna 22 .

Wherein, the loop antenna 21 can be formed into a ring by surrounding a conductor, for example, a magnesium alloy can be used to form a ring, an FPC (Flexible Printed Circuit, flexible circuit board) can be used to form a ring, and so on.

The slot antenna 22 can be formed by opening a slot on the conductor structure, for example, it can be formed by opening a slot 222 on the conductor structure 221 . Wherein, the conductor structure 221 may be a conductor layer formed of materials such as magnesium alloy and aluminum alloy, or may be a copper plating layer formed on a substrate, and so on.

The Y direction shown in FIG. 2 is defined as a first direction, and the X direction is defined as a second direction. The first direction Y and the second direction X are perpendicular to each other. Wherein, the first direction may be, for example, a horizontal direction, and the second direction may be, for example, a vertical direction. It should be noted that although the Y direction shown in FIG. 2 points to the left, in other embodiments, the Y direction may also point to the right. The loop antenna 21 has a symmetry axis P1, and the slot antenna 22 has a symmetry axis P2. Wherein, the symmetry axis P1 of the loop antenna 21 and the symmetry axis P2 of the slot antenna 22 are both perpendicular to the first direction Y. It should be noted that the symmetry axis P1 and the symmetry axis P2 are only logical definitions, and such structures as the symmetry axis P1 and the symmetry axis P2 do not exist on the actual antenna assembly 20 .

In the embodiment 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 4G signals, 5G signals, Wi-Fi signals, or Wi-Fi signals. -Another of Fi signal, Bluetooth signal, GPS signal. For example, loop antenna 21 may be configured to transmit Wi-Fi signals, and slot antenna 22 may be configured to transmit Bluetooth signals.

In some embodiments, the loop antenna 21 can work in a one-wavelength mode, and the slot antenna 22 can work in a half-wavelength mode.

Referring to FIG. 3 at the same time, FIG. 3 is a schematic diagram of current distribution of the antenna assembly 20 shown in FIG. 2 .

Wherein, the current distribution of the loop antenna 21 is mainly distributed along the first direction Y, so 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.

It can be understood that the overall structure of the loop antenna 21 is a loop, so the two parts of the loop antenna 21 located on both sides of the symmetry axis P1 can be centrally symmetrically arranged. At this time, the loop antenna 21 is formed into a center-symmetrical antenna structure.

The current of 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. Wherein, the current distribution directions at the two ends away from the symmetry axis P2 are the same, both are along the second direction X, and are symmetrically distributed with respect to the symmetry axis P2. The current distribution on both sides of the gap 222 in the Y direction 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 towards the axis of symmetry P2 or away from the axis of symmetry P2, that is, symmetrical The current directions on both sides of the axis P2 are opposite. For example, as shown in FIG. 3 , the current distribution on one side of the slit 222 on both sides of the symmetry axis P2 faces the symmetry axis P2 , and the current distribution on the other side of the slit 222 on both sides of the symmetry axis P2 deviates from the symmetry axis P2 . Therefore, the current distribution of the slot antenna 22 along the Y direction cancels each other, and the overall current distribution is along the X direction. Thus, the polarization direction of the slot antenna 22 is along the X direction.

Therefore, the amplitudes of the electromagnetic energy coupled to the loop antenna 21 by the two parts of the slot antenna 22 located on both sides of the symmetry axis P2 are the same or substantially the same, and the phases are 180° different, that is, the phases are opposite. Therefore, the electromagnetic energy coupled to the loop antenna 21 by the two parts of the current on both sides of the symmetry axis P2 of the slot antenna 22 will cancel each other or mostly cancel each other, thereby reducing the energy coupling between the slot antenna 22 and the loop antenna 21, The isolation between the slot antenna 22 and the loop antenna 21 is high, so the isolation between the two antennas of the antenna assembly 20 can be improved.

It can be understood that since the slot antenna 22 is formed by opening the slot 222 on the conductor structure 221, the overall structure of the slot antenna 22 is also circular, so the two parts of the slot antenna 22 located on both sides of the symmetry axis P2 can also be centrally symmetrically arranged. At this time, the slot antenna 22 also has a centrosymmetric antenna structure.

In practical applications, when the frequency band between the wireless signal transmitted by the loop antenna 21 and the wireless signal transmitted by the slot antenna 22 is close to or there is frequency overlap, for example, when the loop antenna 21 transmits a Wi-Fi signal and the slot antenna 22 transmits a Bluetooth signal, the improvement The isolation between the loop 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 wireless signal transmission.

In some embodiments, refer to FIG. 4 , which is a second schematic structural diagram of the antenna assembly 20 provided in the embodiment of the present application.

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 connected in sequence. Wherein, 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 slit 222 overall presents a shape that is narrow in the middle and wide at both ends.

It can be understood that setting the slit 222 to be narrow in the middle and wide at both ends can make the distance between the conductor structures on both sides of the middle part of the slit 222 (that is, the second sub-slit 2222 ) smaller, so the second sub-slit 2222 The current loops can be better formed between the conductor structures on both sides, which is beneficial for the slot antenna 22 to form a current loop on both sides of the symmetry axis P2, so that the slot antenna 22 is distributed in two parts on both sides of the symmetry axis P2 in the Y direction The current flows in the opposite direction.

In some embodiments, refer to FIG. 5 , which is a schematic diagram of a third structure of the antenna assembly 20 provided in the embodiment of the present application.

Wherein, the loop antenna 21 includes a first feeding point 211 and a second feeding point 212 , and both the first feeding point 211 and the second feeding point 212 are configured to feed the loop antenna 21 . In some embodiments, the first feeding point 211 and the second feeding point 212 may be distributed at both ends of the loop antenna 21 along the first direction Y, as shown in FIG. 5 .

The antenna assembly 20 also includes a first feed structure 23 configured to feed the loop antenna 21 . The first feed structure 23 includes a first feed branch 231 and a second feed branch 232, the first feed branch 231 outputs a first excitation signal, and the second feed branch 232 outputs a second excitation signal. Wherein, the signal types of the first excitation signal and the second excitation signal are the same, for example, both are Wi-Fi excitation signals or both are Bluetooth excitation signals. The phases of the first excitation signal and the second excitation signal are opposite, for example, the phase of the first excitation signal is 0°, and the phase of the second excitation signal is 180°.

Wherein, the first feed branch 231 is electrically connected to the first feed point 211 to feed the first excitation signal to the first feed point 211 . The second feeding branch 232 is electrically connected to the second feeding point 212 to feed the second excitation signal to the second feeding point 212 . Thereby, the loop antenna 21 is enabled to transmit and receive wireless signals.

It can be understood that, in practical applications, the first feed branch 231 and the first feed point 211 may be electrically connected through contact or electromagnetic coupling. For example, the first feed branch 231 can be directly welded on the first feed point 211 to realize electrical connection. For another example, the first feed branch 231 may also be spaced apart from the first feed point 211 to realize electromagnetic coupling between the first feed branch 231 and the first feed point 211 , thereby realizing electrical connection.

Similarly, the second feed branch 232 and the second feed point 212 can also be electrically connected through contact or electromagnetic coupling.

In some embodiments, referring to FIG. 5 , the antenna assembly 20 further includes a first feed 241 configured to generate an excitation signal, for example, generate a Wi-Fi excitation signal, a Bluetooth excitation signal, and the like. Wherein, the first feed source 241 is connected to the first feed branch 231 and the second feed branch 232 through the phase-shift power divider 25 , so that the above-mentioned first excitation signal and the second excitation signal are generated through the phase-shift power divider 25 .

It can be understood that the first feed source 241 may be disposed on the circuit board of the electronic device 100, or may also be disposed on a separate small board.

In some embodiments, refer to FIG. 6 , which is a schematic diagram of a fourth structure of the antenna assembly 20 provided in the embodiment of the present application.

The antenna assembly 20 shown in FIG. 6 is different from the antenna assembly 20 shown in FIG. 5 in that: the antenna assembly 20 includes a second feed source 242 and a third feed source 243 . Both the second feed source 242 and the third feed source 243 are configured to generate an excitation signal, for example, generate a Wi-Fi excitation signal, a Bluetooth excitation signal, and the like.

Wherein, the second feed source 242 is electrically connected to the first feed branch 231 to provide the first excitation signal to the first feed branch 231 . The third feed source 243 is electrically connected to the second feed branch 232 to provide the second excitation signal to the second feed branch 232 .

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

In some embodiments, with continued reference to FIG. 5 , the antenna assembly 20 further includes a second feed structure 26 . The second feeding structure 26 is electrically connected to the slot antenna 22 , so that the second feeding structure 26 can be configured to feed an excitation signal to the slot antenna 22 , for example, feed a Wi-Fi excitation signal or a Bluetooth excitation signal to the slot antenna 22 .

It can be understood that the second feeding structure 26 can be electrically connected to the slot antenna 22 through contact or electromagnetic coupling. For example, the second feed structure 26 can be directly welded on the conductor structure 221 near the gap 222 to realize electrical connection. For another example, the second feed structure 26 may be spaced apart from the conductor structure 221 and directly opposite to the symmetry axis P2 of the slot antenna 22 to achieve electromagnetic coupling between the second feed structure 26 and the slot antenna 22 for electrical connection.

In some embodiments, with continued reference to FIG. 5 , the antenna assembly 20 further includes a fourth feed 271 . The fourth feed source 271 is configured to generate the aforementioned third excitation signal. Wherein, the fourth feed source 271 is connected to the second feed structure 26 , so that the third excitation signal can be fed into the slot antenna 22 through the second feed structure 26 .

In some embodiments, refer to FIG. 7 , which is a schematic diagram of a fifth structure of the antenna assembly 20 provided in the embodiment of the present application.

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

The second feed structure 26 includes a third feed branch 261 and a fourth feed branch 262, the third feed branch 261 outputs a third excitation signal, and the fourth feed branch 262 outputs a fourth excitation signal. Wherein, 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. The phases of the third excitation signal and the fourth excitation signal are the same, for example, the phases are both 0°.

The third feeding branch 261 is electrically connected to the third feeding point 223 to feed the third excitation signal into the third feeding point 223 . The fourth feed branch 262 is electrically connected to the fourth feed point 224 to feed the fourth excitation signal to the fourth feed point 224 . Thereby, the slot antenna 22 is enabled to transmit and receive wireless signals.

It can be understood that in practical applications, the third feed branch 261 and the third feed point 223 can be electrically connected through abutment or electromagnetic coupling, and the fourth feed branch 262 and the fourth feed point 224 can also be connected through abutment or electromagnetic coupling to achieve electrical connection, which will not be described in detail here.

In some embodiments, the fourth feed source 271 is connected to the third feed branch 261 and the fourth feed branch 262 through the in-phase power divider 28, and the third excitation signal and the fourth excitation signal are generated through the in-phase power divider 28, The third excitation signal is fed into the third feed point 223 through the third feed branch 261 , and the fourth excitation signal is fed into the fourth feed point 224 through the fourth feed branch 262 .

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

In some embodiments, refer to FIG. 8 , which is a schematic diagram of a sixth structure of the antenna assembly 20 provided by the embodiment of the present application.

The antenna assembly 20 shown in FIG. 8 is different from the antenna assembly 20 shown in FIG. 7 in that: the antenna assembly 20 includes a fifth feed source 272 and a sixth feed source 273 . Both the fifth feed source 272 and the sixth feed source 273 are configured to generate an excitation signal, for example, generate a Wi-Fi excitation signal, a Bluetooth excitation signal, and the like.

Wherein, the fifth feed source 272 is electrically connected to the third feed branch 261 to provide the third excitation signal to the third feed branch 261 . The sixth feed source 273 is electrically connected to the fourth feed branch 262 to provide the fourth excitation signal to the fourth feed branch 262 .

It can be understood that the fifth feed source 272 and the sixth feed source 273 may be disposed on the circuit board of the electronic device 100, or may also be disposed on a separate small board.

In some embodiments, refer to FIG. 9 to FIG. 12 at the same time, wherein FIG. 9 is an application example diagram of the antenna assembly 20 provided by the embodiment of the present application, FIG. 10 is a partially enlarged schematic diagram of area A in FIG. 9 , and FIG. 11 is a schematic diagram of the application An application example diagram of another viewing angle of the antenna assembly 20 provided by the embodiment, FIG. 12 is a partially enlarged schematic diagram of area B in FIG. 11 .

It can be understood that the antenna assembly 20 is mounted on the casing of the electronic device 100 . Therefore, in practical applications, in order to facilitate the installation of the antenna assembly 20, the loop antenna 21 and the slot antenna 22 may not be arranged on the same plane, but may be at a certain angle, or may be perpendicular to each other.

The antenna assembly 20 also includes a first substrate 29 and a second substrate 31 . Both the first substrate 29 and the second substrate 31 can be made of FR4 epoxy resin. Wherein, the loop antenna 21 is disposed on the first substrate 29 , and the slot antenna 22 is disposed on the second substrate 31 .

In some embodiments, the first substrate 29 is perpendicular to the second substrate 31 , so that the plane where the loop antenna 21 is located is also perpendicular to the plane where the slot antenna 22 is located.

It can be understood that the first feed structure 23 may be disposed on the second substrate 31 , for example, the first feed structure 23 may include 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 may be respectively formed on two opposite surfaces of the second substrate 31 , as shown in FIG. 11 and FIG. 12 .

The second feed structure 26 may also be disposed on the second substrate 31 , for example, the second feed structure 26 may also include a printed circuit 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 feed structure 26 and the first feed structure 23 may be disposed on the same surface of the second substrate 31, for example, the first feed structure 23 is formed on the periphery of the second feed structure 26, as shown in FIG. 11. As shown in Figure 12.

Referring to FIG. 13 , FIG. 13 is a schematic diagram of the S-parameter simulation results of the antenna assembly 20 provided by the embodiment of the present application. Among them, the schematic diagram of the S-parameter simulation results includes the variation curves of parameters such as S1.1, S1.2, S2.1, and S2.2 with frequency. From the schematic diagram of the S-parameter simulation results, it can be seen that the antenna assembly 20 has an isolation of 40 dB in the 2.4GHz-2.5GHz frequency band, so the loop antenna 21 and the slot antenna 22 have a relatively good isolation.

Therefore, in the antenna assembly 20 provided in the embodiment of the present application, since the current distribution of the loop antenna 21 is symmetrically distributed along the symmetry axis P1 of the loop antenna 21, the current distribution of the slot antenna 22 is also symmetrically distributed along the symmetry axis P2 of the slot antenna 22, And the symmetry axis P1 of the loop antenna 21 and the symmetry axis P2 of the slot antenna 22 are all perpendicular to the polarization direction of the loop antenna 21, so that the two parts of the slot antenna 22 located on both sides of the symmetry axis P2 are electrically coupled to the electromagnetic energy on the loop antenna 21 The magnitudes are the same or substantially the same, and the phases are opposite. Therefore, the electromagnetic energy coupled to the loop antenna 21 by the two parts of the current on both sides of the symmetry axis P2 of the slot antenna 22 will cancel each other or mostly cancel each other, thereby reducing the gap between the slot antenna 22 and the loop antenna 21. The energy coupling between the loop antennas 21 enables a high isolation between the slot antenna 22 and the loop antenna 21 , thus improving the isolation between the two antennas of the antenna assembly 20 .

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 interpreted as indicating or implying relative importance or implicitly indicating the indicated technology number of features.

The antenna assembly and the electronic device provided by the embodiments of the present application have been introduced in detail above. In this paper, specific examples are used to illustrate the principles and implementation methods of the present application, and the descriptions of the above embodiments are only used to help understand the present application. At the same time, for those skilled in the art, based on the idea of this application, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be construed as limiting the application.

Claims (14)

1. An antenna assembly, comprising:

a loop antenna having a polarization direction along a first direction;

a slot antenna having a polarization direction along a second direction;

the first direction is perpendicular to the second direction, the current distribution of the loop antenna is symmetrically distributed along the symmetry axis of the loop antenna, the current distribution of the slot antenna is symmetrically distributed along the symmetry axis of the slot antenna, and the symmetry axis of the loop antenna and the symmetry axis of the slot antenna are perpendicular to the first direction.

2. The antenna assembly of claim 1, wherein the slot antenna comprises a conductor structure having a slot formed therein, the slot comprising a first sub-slot, a second sub-slot, and a third sub-slot connected in series, a width of the second sub-slot in the second direction being smaller than a width of the first sub-slot in the second direction and a width of the third sub-slot in the second direction.

3. The antenna assembly of claim 1 or 2, characterized in that:

the loop antenna comprises a first feed point and a second feed point;

the antenna assembly further comprises a first feed structure comprising a first feed branch and a second feed branch, a first driving signal output by the first feed branch being in opposite phase to a second driving signal output by the second feed branch;

wherein the first feeding branch is electrically connected with the first feeding point to feed the first driving signal, and the second feeding branch is electrically connected with the second feeding point to feed the second driving signal.

4. The antenna assembly of claim 3, wherein:

the first feeding branch is abutted or electromagnetically coupled with the first feeding point to realize electrical connection;

the second feeding branch is abutted or electromagnetically coupled with the second feeding point to realize electrical connection.

5. The antenna assembly of claim 3, wherein the first feed point and the second feed point are distributed across the loop antenna along the first direction.

6. The antenna assembly of claim 3, further comprising:

a first feed connected to the first and second feed branches through a phase-shifting power divider to provide the first driving signal to the first feed branch and the second driving signal to the second feed branch.

7. The antenna assembly of claim 3, further comprising:

a second feed electrically connected to the first feed branch to provide the first excitation signal to the first feed branch;

a third feed electrically connected to the second feed branch to provide the second excitation signal to the second feed branch.

8. The antenna assembly of 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 feed structure, wherein the second feed structure comprises a third feed branch and a fourth feed branch, and a third excitation signal output by the third feed branch is in the same phase as a fourth excitation signal output by the fourth feed branch;

wherein the third feeding branch is electrically connected with the third feeding point to feed in the third driving signal, and the fourth feeding branch is electrically connected with the fourth feeding point to feed in the fourth driving signal.

9. The antenna assembly of claim 8, further comprising:

and the fourth feed source is connected with the third feed branch and the fourth feed branch through an in-phase power divider.

10. The antenna assembly of claim 8, further comprising:

a fifth feed electrically connected to the third feed branch to provide the third excitation signal to the third feed branch;

a sixth feed electrically connected to the fourth feed branch to provide the fourth driving signal to the fourth feed branch.

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

12. The antenna assembly of claim 1 or 2, further comprising:

a first substrate on which the loop antenna is disposed;

a second substrate on which the slot antenna is disposed.

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

14. An electronic device, comprising:

a housing;

an antenna assembly disposed in the housing, the antenna assembly being the antenna assembly of any one of claims 1 to 13.

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