CN218940000U - Antenna assembly and electronic equipment - Google Patents

Abstract

The utility model provides an antenna assembly and electronic equipment, and relates to the technical field of antennas. The antenna assembly includes: the device comprises a first reference ground, a main radiator, a coupling radiation structure and a change-over switch; the main radiator is positioned above the first reference ground, the coupling radiation structure is positioned at one side of the main radiator, the change-over switch is electrically connected between the coupling radiation structure and the first reference ground, and the change-over switch is used for controlling the connection and disconnection of the coupling radiation structure and the first reference ground. In some embodiments, the coupling radiating structure includes a coupling radiator and a second reference ground; the first reference ground and the second reference ground are adjacently arranged at intervals and are electrically connected through a change-over switch; the coupling radiator is located above the second reference ground and is electrically connected to the second reference ground. The antenna assembly provided by the utility model can realize effective regulation and control of the radiation direction of the antenna assembly, and the coverage effect of the antenna assembly is optimized.

Description

Antenna assembly and electronic equipment

Technical Field

The present utility model relates to the field of antenna technologies, and in particular, to an antenna assembly and an electronic device.

Background

The antenna directivity refers to the field intensity of radiated electromagnetic waves of the antenna in different planes, the main expression method is the directional diagram of the antenna, and the antenna directivity is the main research direction of the antenna.

In the related art, a method for adjusting the direction of an antenna generally uses a plurality of antennas to form an antenna array, and the overall radiation pattern of the antenna array is dynamically adjusted by adjusting parameters such as the amplitude, the phase and the like of a radiation signal on each antenna.

However, there are a number of disadvantages to using this adjustment scheme, such as high hardware cost for constructing the antenna array and complex structure of the antenna array.

Disclosure of Invention

The utility model provides an antenna assembly and electronic equipment, which can solve the problems of higher cost and complex structure of the existing antenna direction adjustment scheme.

The technical scheme is as follows:

in one aspect, an antenna assembly is provided, the antenna assembly comprising: the device comprises a first reference ground, a main radiator, a coupling radiation structure and a change-over switch;

the main radiator is located above the first reference ground, the coupling radiation structure is located on one side of the main radiator, the change-over switch is electrically connected between the coupling radiation structure and the first reference ground, and the change-over switch is used for controlling the connection and disconnection of the coupling radiation structure and the first reference ground.

In some embodiments, the coupling radiation structure comprises a coupling radiator and a second reference ground;

the first reference ground and the second reference ground are adjacently arranged at intervals and are electrically connected through the change-over switch;

the coupling radiator is located above the second reference and is electrically connected to the second reference.

In some embodiments, the coupled radiator is located near an edge of the primary radiator at the second reference ground.

In some embodiments, the coupling radiator includes a first extension, a lower end of the first extension being electrically connected to the second reference ground, and an upper end of the first extension extending to a position beyond the main radiator.

In some embodiments, the coupling radiator further includes a second extension portion electrically connected to the first extension portion and extending along a side facing the main radiator.

In some embodiments, one end of the second extension is connected to an upper end of the first extension, and the other end of the second extension extends above the main radiator.

In some embodiments, the number of the coupling radiation structures is at least two, and the at least two coupling radiation structures are respectively located on at least two sides of the main radiator.

In some embodiments, the number of the switches is a plurality, and the switches respectively control the on and off of the first reference ground and the coupling radiation structure at different positions.

In some embodiments, the antenna assembly further comprises a dielectric layer, the main radiator and the first reference ground being located on an upper surface and a lower surface of the dielectric layer, respectively.

In some embodiments, the coupling radiator is located on an upper surface of the dielectric layer, the second reference ground is located on a lower surface of the dielectric layer, and the coupling radiator and the second reference ground are electrically connected through the dielectric layer.

In another aspect, an electronic device is provided, which includes the antenna assembly of the present utility model.

The technical scheme provided by the utility model has the beneficial effects that at least:

the antenna component is characterized in that a coupling radiation structure is arranged on one side of a first reference ground corresponding to a main radiator, and a change-over switch is arranged to control the electric connection between the coupling radiation structure and the first reference ground.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a scene diagram of a transmitting antenna dynamically switching antenna directions according to the location of a target handset;

fig. 2 is a schematic structural diagram of an antenna assembly according to an embodiment of the present utility model;

fig. 3 is a schematic structural diagram of an antenna assembly according to another embodiment of the present utility model;

FIG. 4 is a side view of a coupling radiation structure according to a first embodiment of the present utility model;

FIG. 5 is a side view of a coupling radiation structure according to a second embodiment of the present utility model;

FIG. 6 is a side view of a coupling radiation structure according to a third embodiment of the present utility model;

fig. 7 is a diagram of an antenna assembly in an initial state according to an embodiment of the present utility model;

fig. 8 is a diagram of an antenna assembly in a first switching state according to an embodiment of the present utility model;

fig. 9 is a diagram of an antenna assembly in a second switching state according to an embodiment of the present utility model;

fig. 10 is a diagram of an antenna assembly in a third switching state according to an embodiment of the present utility model.

Reference numerals in the drawings are respectively expressed as:

100. a transmitting antenna; 200. a target mobile phone;

1. a main radiator;

2. a first reference ground;

3. a coupling radiation structure;

31. coupling a radiator; 311. a first extension; 312. a second extension; 32. a second reference ground;

4. a change-over switch;

5. a dielectric layer.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the utility model. Rather, they are merely examples of apparatus and methods consistent with aspects of the utility model as detailed in the accompanying claims.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in fig. 2 are merely for convenience in describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Unless defined otherwise, all technical terms used in the embodiments of the present utility model have the same meaning as commonly understood by one of ordinary skill in the art.

Wherein, antenna pattern: also called radiation pattern, refers to a pattern of the relative field strength (normalized modulus) of the antenna radiation field as a function of direction at a distance from the antenna, usually represented by two mutually perpendicular planar patterns passing through the antenna's maximum radiation direction.

The antenna pattern typically has a plurality of radiation beams. The radiation beam with the highest radiation intensity is called a main lobe, and the rest radiation beams are called side lobes or side lobes. Among the side lobes, the side lobe in the opposite direction to the main lobe is also called the back lobe.

Antenna gain: for characterizing the extent to which the antenna radiates the input power in a concentrated manner. In general, the narrower the main lobe of the antenna pattern, the smaller the side lobe, and the higher the antenna gain.

In antenna design, it is desirable to dynamically adjust the antenna pattern for optimal signal coverage in certain scenarios. As shown in the following scenario of fig. 1, the transmitting antenna 100 needs to dynamically switch the antenna pattern according to the location of the target handset 200 to achieve the best coverage of the target handset 200.

In the related art, an antenna array is generally formed by using a plurality of antennas, and the radiation pattern of the whole antenna array is dynamically adjusted by adjusting parameters such as the amplitude, the phase and the like of a radiation signal on each antenna. However, the scheme has a plurality of defects, namely, the antenna array has high hardware cost and complex structure, and is not beneficial to miniaturization and miniaturization of the antenna; and secondly, the signal system has large processing difficulty and lower reliability.

Therefore, the utility model provides the antenna assembly, which can effectively regulate and control the radiation direction of the independent antenna assembly through controlling the change-over switch and has the advantages of simple structure, low hardware cost, small difficulty in signal control and processing, high reliability and the like.

The electronic device of the utility model may be provided with a radio circuit comprising an antenna assembly. The antenna assembly may be used to transmit and/or receive wireless radio frequency signals. If desired, the electronic device may also include an antenna for processing satellite navigation system signals, cellular telephone signals, wireless local area network signals, near field communications, light-based wireless communications, or other wireless communications.

The electronic device may be a portable electronic device or other suitable electronic device. For example, a laptop computer, tablet computer, smaller device (such as a wristwatch device, a hanging device, a headset device, an earpiece device, or other wearable or miniature device), a handheld device (such as a cellular phone), a media player, or other small portable device. The electronic device may also be a set top box, a desktop computer, a display with integrated computer or other processing circuitry, a display without integrated computer, a wireless access point, a wireless base station, an electronic device incorporated into a kiosk, building, or vehicle, or other suitable electronic equipment.

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the embodiments of the present utility model will be described in further detail with reference to the accompanying drawings.

In one aspect, as shown in fig. 2, the present embodiment provides an antenna assembly, including: a first reference ground 2, a main radiator 1, a coupling radiating structure 3 and a switch 4.

The main radiator 1 is located above the first reference ground 2, the coupling radiation structure 3 is located at one side of the main radiator 1, the switch 4 is electrically connected between the coupling radiation structure 3 and the first reference ground 2, and the switch 4 is used for controlling the connection and disconnection of the coupling radiation structure 3 and the first reference ground 2.

According to the antenna assembly, the coupling radiation structure 3 is arranged on one side of the first reference ground 2 corresponding to the main radiator 1, the change-over switch 4 is arranged to control the electric connection between the coupling radiation structure 3 and the first reference ground 2, the coupling radiation structure 3 is in a conducting state of the first reference ground 2, and the coupling radiation structure 3 generates surface current, so that a part of the main radiator 1 is formed, the antenna assembly obtains extra gain on the side of the coupling radiation structure 3, the effective regulation and control of the radiation direction of the antenna assembly can be realized through controlling the change-over switch 4, the coverage effect of the antenna assembly is optimized, and the antenna assembly has the advantages of being simple in structure, low in hardware cost, small in signal control processing difficulty, high in reliability and the like.

In some possible implementations, the main radiator 1 is a thin metal layer, the planar shape of which includes, but is not limited to, square, rectangle, circle, oval, diamond, and the like.

In other possible implementations, the main radiator 1 and the first reference ground 2 are implemented as microstrip antennas (Microstrip Antenna); microstrip antenna has advantages of low profile, low cost, easy integration, etc., and is widely used in wireless communication field.

The antenna assembly also comprises, illustratively, a feed structure located below the main radiator 1, feeding the main radiator 1 through the first reference ground 2. Wherein the position of the feed point can be reasonably selected according to the desired resonant frequency of the antenna assembly.

Optionally, the feeding structure includes a coaxial cable, wherein an inner conductor of the coaxial cable is electrically connected with the main radiator 1 to feed power to the main radiator 1, and an outer conductor of the coaxial cable is electrically connected with the first reference ground 2 to realize electrical grounding of the first reference ground 2.

When the radiating element is implemented in the form of a radiating patch, such an antenna is also referred to as a microstrip patch antenna (Microstrip Patch Antenna, MPA).

In some possible implementations, the first reference ground 2, which may also be referred to as a floor, may be formed by a circuit board. The circuit board may be a printed circuit board, for example 8, 10, 12, 13 or 14 layers of conductive material, 8, 10 or 12 to 14 laminates, or elements separated and electrically insulated by dielectric or insulating layers such as fiberglass, polymers, etc.

The circuit board typically includes a dielectric substrate, a floor, and trace layers, which are electrically connected by metal vias and may integrally form the floor. Components such as displays, touch screens, input buttons, transmitters, processors, memory, batteries, charging circuits, system on Chip (SoC) structures, etc. may be mounted on or connected to the circuit board; or electrically connected to trace/conductive layers in the circuit board. For example, the radio frequency source is disposed on the trace layer.

In addition, the floor is made of an electrically conductive material. The conductive material may be any of the following materials: copper, aluminum, stainless steel, brass, and alloys thereof, copper foil on an insulating substrate, aluminum foil on an insulating substrate, gold foil on an insulating substrate, silver plated copper foil on an insulating substrate, silver foil and tin plated copper on an insulating substrate, cloth impregnated with graphite powder, graphite coated substrate, copper plated substrate, brass plated substrate, and aluminized substrate.

Those skilled in the art will appreciate that the floor may also be made of other conductive materials. The floor may also be a metallic film under the screen of an electronic device such as a cell phone.

In other possible implementations, the switch 4 is a single pole single throw switch, which has two states of on and off, and when the switch 4 is in the on state, the first reference ground 2 is electrically connected to the coupling radiation structure 3, and the coupling radiation structure 3 generates a surface current, so that the radiation direction of the antenna assembly is adjusted towards the target direction (for example, the side on which the coupling radiation structure 3 is located). When the switch 4 is in the off state, the first reference ground 2 is electrically disconnected from the coupling radiating structure 3, the coupling radiating structure 3 does not generate a surface current, and the radiating direction of the antenna assembly depends on the initial direction of the radiating performance of the main radiator 1. Thereby enabling the radiation direction of the antenna assembly to be effectively regulated between the initial direction and the target direction by controlling the state of the change-over switch 4.

The switch 4 is used for controlling the connection and disconnection of the electrical connection of the first reference ground 2 and the second reference ground 32.

As shown in connection with fig. 2, in some embodiments, the coupling radiation structure 3 comprises a coupling radiator 31 and a second reference ground 32; the first reference ground 2 and the second reference ground 32 are adjacently arranged at intervals, and the first reference ground 2 and the second reference ground 32 are electrically connected through the change-over switch 4; the coupling radiator 31 is located above the second reference ground 32 and is electrically connected to the second reference ground 32.

The coupling radiation structure 3 of the present embodiment uses the second reference ground 32 adjacent to the first reference ground 2 and the coupling radiator 31 electrically connected to the second reference ground 32, and forms a coupling current with the rear surface electrically connected to the first reference ground 2, so as to generate a corresponding coupling radiation field, and couple with the main radiation field of the main radiator 1, thereby playing a role in regulating the radiation direction of the antenna assembly.

As shown in connection with fig. 2, in some embodiments, the coupling radiator 31 is located near the edge of the main radiator 1 at the second reference ground 32. Thereby, it is advantageous to improve the coupling effect of the coupling radiator 31 to the main radiator 1, and to control the planar size of the antenna assembly as much as possible, thereby facilitating the miniaturization and microminiaturization development of the antenna assembly.

As shown in connection with fig. 3-6, in some embodiments, the coupling radiator 31 includes a first extension 311, a lower end of the first extension 311 is electrically connected to the second reference ground 32, and an upper end of the first extension 311 extends to a position beyond the main radiator 1.

Considering that the radiation range of the main radiator 1 is located substantially above the plane of the main radiator 1, it is utilized to extend the upper end of the first extension 311 above the main radiator 1, i.e. to have the upper end of the first extension 311 located within the radiation range of the main radiator 1. Therefore, after the first extension portion 311 has the radiation capability, coupling with the main radiator 1 can be generated, so as to realize the regulation and control of the radiation direction of the antenna assembly.

In some possible implementations, the first extension 311 is a rod, a plate, or the like that extends in a vertical direction. The shape, size, etc. of the first extension 311 may be reasonably selected according to factors such as the shape of the main radiator 1, the position of the coupling radiation structure 3, and the regulation and control requirement of the radiation angle, which is not limited in the present utility model.

As shown in connection with fig. 3 and 6, in some embodiments, the coupling radiator 31 further includes a second extension 312, where the second extension 312 is electrically connected to the first extension 311 and extends along a side facing the main radiator 1.

On the basis of the first extension part 311, the effective electrical length of the coupling radiator 31 is increased by using the second extension part 312, and the radiation capacity of the coupling radiator 31 is improved, so that the radiation direction of the main radiator 1 is greatly influenced, and the radiation direction regulating capacity of the antenna assembly is improved.

In some possible ways, the second extension 312 is a rod, plate, or the like that extends in a vertical direction. The shape, size, etc. of the second extension 312 may be reasonably selected according to factors such as the shape of the main radiator 1, the position of the coupling radiation structure 3, the regulation and control requirement of the radiation angle, etc., which is not limited in the present utility model.

Illustratively, the first extension 311 and the second extension 312 form an inverted L shape as shown in fig. 3, 6, or form a T shape as shown in fig. 5. The shape of the coupling radiator 31 formed by the first extension 311 and the second extension 312 is not limited to the above example, and the present utility model is not limited thereto.

As shown in connection with fig. 3, in some embodiments, one end of the second extension 312 is connected to the upper end of the first extension 311, and the other end of the second extension 312 extends above the main radiator 1.

The coupling area of the coupling radiation structure 3 and the main radiator 1 is increased through the second extension part 312, and when the second extension part 312 extends to the upper part of the main radiator 1, the radiation range of the main radiator 1, which can participate in coupling, of the second extension part 312 is larger, so that better radiation direction regulation and control can be achieved.

In other possible implementations, at least part of the primary radiator 1 is not covered by the second extension 312.

As shown in connection with fig. 3, in some embodiments the number of coupling radiation structures 3 is at least two, at least two coupling radiation structures 3 being located on at least two sides of the main radiator 1, respectively.

In this embodiment, at least two coupling radiation structures 3 are respectively disposed on at least two sides of the main radiator 1, so that the directional adjustment and control of the antenna assembly in at least two directions can be achieved by controlling the on/off of the at least two coupling radiation structures 3 and the first reference ground 2.

The number of coupling radiation structures 3 is illustratively one, two, three or four, etc.

In some embodiments, as shown in connection with fig. 3, the number of switches 4 is plural, and the plurality of switches 4 control the on and off of the first reference ground 2 and the coupling radiation structure 3 at different positions, respectively.

In this embodiment, a plurality of switches 4 are adopted, so that the conducting position of the first reference ground 2 and the coupling radiation structure 3 can be controlled, and the change of the conducting position can bring about the differential distribution of the surface currents of the coupling radiation structure 3, so that the radiation performance of the coupling radiation structure 3 is different, and then the radiation direction of the antenna assembly can be regulated and controlled to different degrees.

The number of the change-over switches 4 is exemplified by one, two, three or four, or the like.

As shown in connection with fig. 4-6, in some embodiments the antenna assembly further comprises a dielectric layer, the main radiator 1 and the first reference ground 2 being located on an upper surface and a lower surface of the dielectric layer, respectively.

Therefore, the main radiator 1, the dielectric layer and the first reference ground 2 of the embodiment are constructed as microstrip antennas, and the advantages of low profile, low cost, easy integration and the like are fully utilized.

In some possible implementations, the dielectric layer may be a transparent film layer and can withstand the corresponding printing, etching, etc. processes. For example: the dielectric layer may be a PET Film (Polyester Film), a COP Film (Cyclo Olefin Polymer Film, cyclic olefin polymer Film), a COC Film (Copolymers of Cycloolefin Film, cyclic olefin copolymer Film), or a CPI Film (Colorless and Transparent Polyimide Film, colorless transparent polyimide Film), etc., which is not limited in this application. The dielectric layer may also be air.

Referring to fig. 4-6, in some embodiments, the coupling radiator 31 is located on an upper surface of the dielectric layer, and the second reference ground 32 is located on a lower surface of the dielectric layer, and the coupling radiator 31 and the second reference ground 32 are electrically connected through the dielectric layer.

The structural characteristics of the microstrip antenna are fully utilized, and the coupling radiator 31 and the second reference ground 32 are arranged on the upper surface and the lower surface of the dielectric layer, so that the structural complexity of the antenna assembly is reduced.

Taking the antenna assembly provided in the third embodiment (fig. 6) as an example, the technical effects of the present utility model will be described in detail with reference to the directional diagrams of the antenna assembly shown in fig. 7-10:

the antenna assembly has two coupling radiation structures 33 located on the left and right sides of the main radiator 11, respectively, which are named left and right coupling radiation structures for convenience of distinction.

Referring to fig. 7, in the initial state of the antenna assembly according to the present embodiment, it can be seen that the pattern of the antenna assembly is substantially symmetrical left and right with respect to the main radiator 11, and the main radiation direction of the antenna assembly is vertically upward, but significant recesses appear in the upper left and upper right positions.

Referring to fig. 8, in the first state of the antenna assembly according to the present embodiment, the left side coupling radiation structure is connected and turned on, the right side coupling radiation structure is kept turned off, and the direction diagram of the antenna assembly is obviously inclined towards the left side, which illustrates that the left side coupling radiation structure 3 has the effect of adjusting and controlling the radiation direction.

Referring to fig. 9, in a second state of the antenna assembly according to the present embodiment, at this time, the right side coupling radiation structure is connected and turned on, and the left side coupling radiation structure is kept turned off, so that the directional diagram of the antenna assembly is obviously inclined towards the right side, which illustrates that the right side coupling radiation structure has the effect of adjusting and controlling the radiation direction.

Referring to fig. 10, in the second state of the antenna assembly according to the present embodiment, at this time, the left side coupling radiation structure and the right side coupling radiation structure are connected and conducted simultaneously, so that the recesses on the upper left and the upper right of the directional diagram of the antenna assembly are filled, and the left side coupling radiation structure and the right side coupling radiation structure achieve the effect of adjusting and controlling the radiation direction simultaneously.

In another aspect, the present embodiment provides an electronic device including the antenna assembly of the present utility model.

The electronic device of the embodiment adopts the antenna assembly of the utility model, and has all the beneficial technical effects of all the embodiments.

It is noted that in the present utility model, unless explicitly specified and limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but rather being in contact with each other by way of further features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present specification, reference to the terms "certain embodiments," "one embodiment," "some embodiments," "an exemplary embodiment," "an example," "a particular example," or "some examples" means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model.

The foregoing description of the embodiments of the utility model is not intended to limit the utility model, but rather, the utility model is to be construed as limited to the embodiments disclosed.

Claims (11)

1. An antenna assembly, the antenna assembly comprising: the device comprises a main radiator (1), a first reference ground (2), a coupling radiation structure (3) and a change-over switch (4);

the main radiator (1) is located above the first reference ground (2), the coupling radiation structure (3) is located on one side of the main radiator (1), the change-over switch (4) is electrically connected between the coupling radiation structure (3) and the first reference ground (2), and the change-over switch (4) is used for controlling connection and disconnection of the coupling radiation structure (3) and the first reference ground (2).

2. The antenna assembly according to claim 1, characterized in that the coupling radiation structure (3) comprises a coupling radiator (31) and a second reference ground (32);

the first reference ground (2) and the second reference ground (32) are adjacently arranged at intervals, and the first reference ground (2) and the second reference ground (32) are electrically connected through the change-over switch (4);

the coupling radiator (31) is located above the second reference ground (32) and is electrically connected with the second reference ground (32).

3. An antenna assembly according to claim 2, characterized in that the coupling radiator (31) is located near the edge of the main radiator (1) at the second reference ground (32).

4. The antenna assembly according to claim 2, characterized in that the coupling radiator (31) comprises a first extension (311), the lower end of the first extension (311) being electrically connected to the second reference ground (32), the upper end of the first extension (311) extending to a position beyond the main radiator (1).

5. The antenna assembly according to claim 4, characterized in that the coupling radiator (31) further comprises a second extension (312), the second extension (312) being electrically connected to the first extension (311) and extending along a side facing the main radiator (1).

6. The antenna assembly according to claim 5, characterized in that one end of the second extension (312) is connected to the upper end of the first extension (311), the other end of the second extension (312) extending above the main radiator (1).

7. The antenna assembly according to claim 1, characterized in that the number of the coupling radiation structures (3) is at least two, at least two coupling radiation structures (3) being located at least two sides of the main radiator (1), respectively.

8. The antenna assembly according to claim 1, characterized in that the number of the change-over switches (4) is plural, the plural change-over switches (4) controlling the on and off of the first reference ground (2) and the coupling radiation structure (3) in different positions, respectively.

9. The antenna assembly according to claim 2, characterized in that the antenna assembly further comprises a dielectric layer (5), the main radiator (1) and the first reference ground (2) being located on an upper surface and a lower surface of the dielectric layer (5), respectively.

10. The antenna assembly according to claim 9, characterized in that the coupling radiator (31) is located on the upper surface of the dielectric layer (5), the second reference ground (32) is located on the lower surface of the dielectric layer (5), and the coupling radiator (31) and the second reference ground (32) are electrically connected through the dielectric layer (5).

11. An electronic device, characterized in that it comprises an antenna assembly according to any of claims 1-10.

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