Antenna assembly and electronic equipment

Abstract

The utility model provides an antenna assembly and electronic equipment, and belongs to the technical field of antennas. The antenna assembly comprises a first radiator, a second radiator and a phase shift unit. The first radiator and the second radiator are arranged at intervals, and the polarization directions of the first radiator and the second radiator are perpendicular to each other; the phase shift unit is connected with the first radiator and the second radiator and is used for realizing a 90-degree phase difference between the first radiator and the second radiator. According to the antenna assembly provided by the utility model, the first radiator and the second radiator are arranged at intervals and are connected through the phase shift unit, the polarization directions of the two radiators are perpendicular to each other, and the phase shift unit is used for realizing a 90-degree phase difference between the first radiator and the second radiator. The first radiator and the second radiator can realize circular polarization or elliptical polarization radiation, so that the circular polarization performance of the antenna assembly can be improved, the satellite communication performance is improved, and application and popularization of a satellite communication technology in electronic equipment are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of antennas, and particularly relates to an antenna assembly and an electronic device. Background Art

[0002] In recent years, satellite communication technology has become a new product hotspot for electronic devices such as mobile phones. The satellite communication technology enables the communication of electronic devices to be no longer restricted, breaks through the coverage limitation of ground base stations, and can ensure stable communication in remote areas, emergency situations or special scenarios.

[0003] In the related art, for an electronic device, the satellite communication antenna is arranged on the top frame, and the circular polarization performance of the satellite communication antenna is poor, which hinders the application and popularization of satellite communication technology in electronic devices. Summary of the Utility Model

[0004] The utility model provides an antenna assembly and an electronic device, which can solve the problem of poor circular polarization performance of the satellite communication antenna.

[0005] The technical solution is as follows:

[0006] On the one hand, an antenna assembly is provided. The antenna assembly includes: a first radiator, a second radiator and a phase shifter unit;

[0007] The first radiator and the second radiator are arranged at intervals, and the polarization directions of the first radiator and the second radiator are perpendicular to each other;

[0008] The phase shifter unit is respectively connected to the first radiator and the second radiator, and the phase shifter unit is used to achieve a 90-degree phase difference between the first radiator and the second radiator.

[0009] In some embodiments, the first radiator is located on the frame of the electronic device, the second radiator is located inside the frame where the first radiator is located, and the antenna assembly is used to achieve satellite communication of the electronic device.

[0010] In some embodiments, the second radiator is a metal sheet, and the second radiator includes at least one grounding point and at least one first feeding point;

[0011] The at least one grounding point is located on at least one edge of the second radiator, so that the second radiator is formed into a cavity antenna.

[0012] In some embodiments, the second radiator is quadrilateral, the first edge of the second radiator faces the first radiator, and the grounding point is located on at least two of the three edges of the second radiator except the first edge.

[0013] In some embodiments, the first feeding point is located on the first edge, and the phase shifter unit is electrically connected to the first feeding point.

[0014] In some embodiments, the grounding point is located on two adjacent edges of the second radiator except the first edge.

[0015] In some embodiments, the grounding point is located on three edges of the second radiator except the first edge.

[0016] In some embodiments, a slot structure is provided on the second radiator;

[0017] The grounding point is located on three edges of the second radiator except the first edge, and on one edge of the slot structure facing away from the first edge.

[0018] In some embodiments, the antenna assembly further includes a high-dielectric-constant filler, and the high-dielectric-constant filler is located between the second radiator and the floor.

[0019] In some embodiments, the phase shifter unit includes a directional coupler and a circuit board trace structure. One end of the directional coupler is connected to the feed source, and the other end of the directional coupler is connected to the first radiator and the second radiator respectively through the circuit board trace structure.

[0020] In some embodiments, the antenna assembly further includes at least one parasitic radiator, and the at least one parasitic radiator is arranged head-to-head or back-to-back with the first radiator.

[0021] On the other hand, an electronic device is provided, and the electronic device includes the antenna assembly of the present utility model.

[0022] In some embodiments, the electronic device further includes a main board side body, a secondary screen side body and a rotating shaft structure;

[0023] The main board side body and the secondary screen side body are rotationally connected through the rotating shaft structure, and the antenna assembly is located on at least one of the main board side body and the secondary screen side body.

[0024] In some embodiments, the antenna assembly is located on the main board side body; a decorative cover plate is provided on the main board side body, the second radiator is located inside the decorative cover plate, or at least part of the decorative cover plate forms the second radiator.

[0025] The beneficial effects brought by the technical solution provided by the present utility model at least include:

[0026] The antenna assembly of the present utility model has a first radiator and a second radiator arranged at intervals and connected by a phase shifter unit. The polarization directions of the two radiators are perpendicular to each other. The phase shifter unit is used to achieve a 90-degree phase difference between the first radiator and the second radiator. The first radiator and the second radiator can achieve circular polarization or elliptical polarization radiation, thereby improving the circular polarization performance of the antenna assembly, enhancing satellite communication performance, and facilitating the application and popularization of satellite communication technology in electronic devices. Description of the Drawings

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0028] Figure 1 It is a schematic diagram of the satellite communication antenna structure in an electronic device provided by the related art;

[0029] Figure 2 It is a schematic diagram of the antenna assembly and the electronic device provided by the embodiment of the present utility model;

[0030] Figure 3 It is a schematic diagram of the second radiator provided by the embodiment of the present utility model;

[0031] Figure 4 It is a schematic diagram of the second radiator provided by another embodiment of the present utility model;

[0032] Figure 5 It is a schematic diagram of the second radiator provided by another embodiment of the present utility model;

[0033] Figure 6 It is a schematic diagram of the radiation direction of the antenna assembly provided by the embodiment of the present utility model;

[0034] Figure 7 It is a plan view of the far-field direction of the antenna assembly provided by the embodiment of the present utility model;

[0035] Figure 8 It is a schematic diagram of the main wave direction of the antenna assembly in the xoz plane provided by the embodiment of the present utility model;

[0036] Figure 9 It is a schematic diagram of the main wave direction of the antenna assembly in the yoz plane provided by the embodiment of the present utility model;

[0037] Figure 10 It is a schematic diagram of the gain effect of the antenna assembly provided by the embodiment of the present utility model;

[0038] Figure 11 It is a schematic structural diagram of an electronic device provided by an embodiment of the present utility model;

[0039] Figure 12 It is a schematic structural diagram of an electronic device provided by another embodiment of the present utility model;

[0040] Figure 13 It is a schematic structural diagram of an electronic device provided by another embodiment of the present utility model;

[0041] Figure 14 It is a top view of the structure of the main board side body provided by an embodiment of the present utility model.

[0042] The reference numerals in the figure are respectively represented as:

[0043] 100, antenna assembly; 200, main board side body; 300, secondary screen side body; 400, rotating shaft structure;

[0044] 01, frame; 02, middle plate;

[0045] 1, first radiator;

[0046] 2, second radiator;

[0047] 201, first edge;

[0048] 21, grounding point; 22, first feeding point; 23, slot structure;

[0049] 3, phase shifter unit;

[0050] 4, high dielectric constant filling body;

[0051] 5, parasitic radiator;

[0052] 6, decorative cover plate. Detailed implementation manners

[0053] Here, the exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation manners described in the following exemplary embodiments do not represent all the implementation manners consistent with the present utility model. On the contrary, they are only examples of devices and methods consistent with some aspects of the present utility model as detailed in the appended claims.

[0054] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the Figure 2 orientation or positional relationship shown, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0055] It should be understood that in the present utility model, "electrically connected" can be understood as physical contact and electrical conduction between components; it can also be understood as a form of connection between different components in a circuit structure through physical lines such as copper foils or wires of a printed circuit board (PCB) that can transmit electrical signals. "Communication connection" can refer to electrical signal transmission, including wireless communication connection and wired communication connection. Wireless communication connection does not require a physical medium and does not belong to the connection relationship that limits the product structure. "Connection" and "connected" can both refer to a mechanical connection relationship or a physical connection relationship, that is, A is connected to B or A is connected with B can mean that there are fastening components (such as screws, bolts, rivets, etc.) between A and B, or A and B are in contact with each other and it is difficult to separate A and B.

[0056] Unless otherwise defined, all technical terms used in the embodiments of the present utility model have the same meaning as commonly understood by those of ordinary skill in the art.

[0057] In the related art, for the satellite communication antenna solution of a foldable electronic device, as Figure 1 shown, the main radiator A of the satellite communication antenna is on the main board side fuselage of the folding machine. At the same time, the head-to-head electric parasitic stub B and the back-to-back magnetic parasitic stub C are used to tune and improve the antenna efficiency, and the higher linear polarization gain is used to make up for the polarization loss of the circular polarization wave of satellite communication; at the same time, the surrounding antenna stubs D, E, and F are further tuned to finely adjust the antenna pattern, so that the main radiation direction of the pattern is in the upward part.

[0058] However, since multiple antenna branches such as B, C, D, E, and F are all directly related to the radiation pattern, tuning needs to be reserved for the satellite communication antenna, which will sacrifice certain radiation performance of the communication antennas for cellular communication + WiFi (Wireless Fidelity) communication technology. The main manifestation is that for antennas without a tuner (antenna tuner) (such as WIFI antennas and single-band antennas (N78)), in order to provide a tuning effect in the satellite communication state, the feeding position of the antenna must be close to the end, and at the same time, the RF links of some antennas are separated by a tuner, which will introduce relatively large losses and cause a reduction in the radiation performance of the antennas without a tuner.

[0059] Therefore, the present utility model provides an antenna assembly, which can improve the circular polarization performance of the antenna assembly, improve the satellite communication performance, and is conducive to the application and popularization of satellite communication technology in electronic devices.

[0060] To make the objectives, technical solutions, and advantages of the present utility model clearer, the embodiments of the present utility model will be described in further detail below in conjunction with the accompanying drawings.

[0061] On the one hand, as shown in Figure 2 This embodiment provides an antenna assembly 100, and the antenna assembly 100 includes: a first radiator 1, a second radiator 2, and a phase shift unit 3.

[0062] The first radiator 1 and the second radiator 2 are arranged at intervals, and the polarization directions of the first radiator 1 and the second radiator 2 are perpendicular to each other; the phase shift unit 3 is respectively connected to the first radiator 1 and the second radiator 2, and the phase shift unit 3 is used to achieve a 90-degree phase difference between the first radiator 1 and the second radiator 2.

[0063] In the antenna assembly 100 of this embodiment, the first radiator 1 and the second radiator 2 are arranged at intervals and connected by the phase shift unit 3. The polarization directions of the two radiators are perpendicular to each other. The phase shift unit 3 is used to achieve a 90-degree phase difference between the first radiator 1 and the second radiator 2. The first radiator 1 and the second radiator 2 can achieve circular polarization or elliptical polarization radiation, thereby improving the circular polarization performance of the antenna assembly 100, improving the satellite communication performance, and being conducive to the application and popularization of satellite communication technology in electronic devices.

[0064] Exemplarily, the polarization direction of the first radiator 1 is the X direction, and the polarization direction of the second radiator 2 is the Y direction. The X direction and the Y direction are perpendicular to each other. In cooperation with the phase shift unit 3, while keeping the electromagnetic wave vector spaces of the first radiator 1 and the second radiator 2 pointing at a 90-degree phase difference, the polarization planes rotate periodically with time respectively, so as to realize the radiation and reception of circular polarization signals.

[0065] Optionally, the circularly polarized signal of the antenna assembly 100 is a left-handed circularly polarized signal. The axial ratio of the circularly polarized signal of the antenna assembly 100 is less than 3, so that it can have better circular polarization performance.

[0066] As shown in combination with Figure 2 In some embodiments, the first radiator 1 is located on the frame 01 of the electronic device, and the second radiator 2 is located inside the frame 01 where the first radiator 1 is located. The antenna assembly 100 is used to implement satellite communication of the electronic device.

[0067] With the above arrangement, the first radiator 1 is integrated on the frame 01 of the electronic device, making full use of the space of the frame 01 of the electronic device and having a better clearance environment. The second radiator 2 is located inside the frame 01, and the circularly polarized signal formed by the two can radiate from the inside out, meeting the working requirements of satellite communication technology.

[0068] Exemplarily, with reference to Figure 6 As shown, the first radiator 1 is located on the frame 01, and the second radiator 2 is located inside the frame 01. During operation, the circularly polarized signal formed by the first radiator 1 and the second radiator 2 radiates from the inside out. Moreover, by controlling the phase shift unit 3 to adjust the phase between the two radiators, the radiation direction can be adjusted, so that the antenna assembly 100 can radiate circularly polarized signals within the target range.

[0069] In some possible implementation manners, the first radiator 1 is located on the top frame 01 of the electronic device, and the second radiator 2 is located inside the top frame 01, so that the antenna assembly 100 can radiate circularly polarized signals outward from the top of the electronic device to achieve a communication connection with an on-orbit satellite.

[0070] In some possible implementation manners, as shown in reference to Figure 2 The electronic device further includes a middle plate 02. The middle plate 02 is located inside the frame 01, can provide internal support for the electronic device, and can be used as a reference ground for the antenna assembly 100.

[0071] As shown in combination with Figure 3 、 Figure 4 and Figure 5 In some embodiments, the second radiator 2 is a metal sheet, and the second radiator 2 includes at least one grounding point 21 and at least one first feeding point 22.

[0072] At least one grounding point 21 is located on at least one edge of the second radiator 2, so that the second radiator 2 is formed into a cavity antenna.

[0073] In this embodiment, at least one edge of the second radiator 2 is grounded through at least one ground point 21. For example, the second radiator 2 is connected to the middle plate 02 through the ground point 21. Thus, a cavity structure can be formed between the second radiator 2 and the middle plate 02. Furthermore, electromagnetic waves can be generated and radiated by exciting an electric field or a magnetic field inside the cavity, thereby realizing satellite communication. This cavity antenna has high radiation efficiency and radiation directivity, and is suitable for application scenarios that require high gain and precise directional transmission, especially satellite communication scenarios.

[0074] Exemplarily, the second radiator 2 is formed as an open cavity antenna, that is, at least one edge of the second radiator 2 is not provided with a ground point 21. The edge without grounding can serve as the opening of the cavity antenna, so that the second radiator 2 will radiate towards the direction where the opening is located.

[0075] Combined with Figure 3 、 Figure 4 and Figure 5 As shown in, in some embodiments, the second radiator 2 is quadrilateral, the first edge 201 of the second radiator 2 faces the first radiator 1, and the ground point 21 is located on at least two of the three edges of the second radiator 2 except the first edge 201.

[0076] Through the above arrangement, the cavity antenna formed by the second radiator 2 can use the first edge 201 as the opening and radiate in the Y - direction polarization towards the direction where the first radiator 1 is located. The Y - direction polarization radiation is combined with the X - direction polarization radiation of the first radiator 1, thereby forming a circularly polarized signal.

[0077] Combined with Figure 3 、 Figure 4 and Figure 5 As shown in, in some embodiments, the first feeding point 22 is located on the first edge 201, and the phase - shifting unit 3 is electrically connected to the first feeding point 22.

[0078] By arranging the first feeding point 22 on the first edge 201, the second radiator 2 can use the first edge 201 to perform Y - direction polarization radiation.

[0079] Exemplarily, the first feeding point 22 can also be arranged in the inner area of the second radiator 2 close to the first edge 201.

[0080] In some possible implementation manners, the first radiator 1 is provided with a second feeding point (not marked in the figure), and the phase - shifting unit 3 is electrically connected to the second feeding point.

[0081] Combined with Figure 3 As shown in, in some embodiments, the ground point 21 is located on two adjacent edges of the second radiator 2 except the first edge 201, and the second radiator 2 operates in a quarter - wavelength monopole mode.

[0082] By arranging grounding points 21 on two adjacent edges of the second radiator 2 except for the first edge 201, the opening of the second radiator 2 is the first edge 201 and another edge, and the opening of the cavity antenna is increased, which is beneficial to increasing the electrical length of the cavity antenna. The second radiator 2 with a relatively small overall volume can be used to meet the signal radiation requirements of the target frequency band, which is beneficial to reducing the volume of the second radiator 2, reducing the space occupied by the second radiator 2 in the electronic device, and reducing the stacking difficulty of the electronic device.

[0083] Combined with Figure 4 As shown, in some embodiments, the grounding points 21 are located on three edges of the second radiator 2 except for the first edge 201, and the second radiator 2 operates in a half-wavelength monopole mode.

[0084] Through the above arrangement, the second radiator 2 can arrange grounding points 21 on three edges except for the first edge 201, and the second radiator 2 can use the first edge 201 for signal radiation in the target frequency band, having better radiation directivity.

[0085] Combined with Figure 5 As shown, in some embodiments, a slot structure 23 is provided on the second radiator 2; the grounding points 21 are located on three edges of the second radiator 2 except for the first edge 201 and on one edge of the slot structure 23 facing away from the first edge 201, and the slot structure 23 operates in a half-wavelength monopole mode.

[0086] In this embodiment, the slot structure 23 on the second radiator 2 can be used to form a cavity antenna to meet the circular polarization radiation requirements of the antenna assembly 100.

[0087] Exemplarily, the slot structure 23 can also be used to assemble, accommodate, or avoid other components of the electronic device.

[0088] In some embodiments, the antenna assembly 100 further includes a high-dielectric-constant filler located between the second radiator 2 and the floor. The floor can be the middle plate 02 of the electronic device. By filling a high-dielectric-constant filler between the second radiator 2 and the floor, the radiation performance of the second radiator 2 can be effectively improved.

[0089] In some embodiments, the phase shifter unit 3 includes a directional coupler and a circuit board trace structure. One end of the directional coupler is connected to the feed source, and the other end of the directional coupler is respectively connected to the first radiator 1 and the second radiator 2 through the circuit board trace structure. Thus, in this embodiment, the phase shifter unit 3 can perform phase processing on the feed source signal and then send it to the first radiator 1 and the second radiator 2 through the circuit board trace structure respectively to ensure that the first radiator 1 and the second radiator 2 achieve circular polarization.

[0090] Combined withFigure 1 As shown, in some embodiments, the antenna assembly 100 further includes at least one parasitic radiator 5, and the at least one parasitic radiator 5 is arranged head-to-head or back-to-back with the first radiator 1. By using the parasitic radiator 5 arranged head-to-head or back-to-back, the operating performance of the first radiator 1 can be improved.

[0091] Figure 7 is a plan view of the far-field direction of the antenna assembly 100 provided by an embodiment of the present invention. In the figure, the Theta angle represents the angle of the antenna pattern relative to the vertical direction of the main axis of the antenna. Theta = 0 corresponds to the pointing direction of the main axis of the antenna. The Phi angle represents the angle of the antenna pattern relative to the horizontal direction of the main axis of the antenna. Phi = 0 corresponds to the pointing direction of the main axis of the antenna. As can be seen from the figure, within the range of 0 - 60 degrees of the Theta angle and within the range of 0 - 360 degrees of the Phi angle, that is Figure 7 in the upper half region, the electric field distribution is balanced, indicating that the antenna radiation performance in this direction is balanced and the circular polarization effect is better.

[0092] Figure 8 is a schematic diagram of the main wave direction of the antenna assembly 100 provided by an embodiment of the present invention in the xoz plane, Figure 9 is a schematic diagram of the main wave direction of the antenna assembly 100 provided by an embodiment of the present invention in the yoz plane. The figure Prop.Dir represents the main wave direction. The main wave direction refers to the direction pointed by the main lobe in the antenna pattern, that is, the direction in which the radiation power or receiving sensitivity is the largest. Thus, the radiation power and receiving sensitivity of the antenna assembly 100 in the top direction are the best.

[0093] Figure 10 is a schematic diagram of the gain effect of the antenna assembly 100 provided by an embodiment of the present invention. As can be seen from the figure, within the range of 0 - 60 degrees of the Theta angle and within the range of 0 - 360 degrees of the Phi angle, that is Figure 10 in the upper half region, the gain of the antenna assembly 100 reaches a peak value of 3.11 dB.

[0094] On the other hand, this embodiment provides an electronic device, and the electronic device includes the antenna assembly 100 of the present invention.

[0095] The electronic device of this embodiment adopts the antenna assembly 100 of the present invention and has all the beneficial technical effects of all the embodiments herein.

[0096] In this embodiment, the electronic device may be referred to as a user equipment (UE) or a terminal, etc. For example, the electronic device may be a portable android device (PAD), a personal digital assistant (PDA), a handheld device with wireless communication function, a computing device, a vehicle-mounted device, a wearable device, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, etc., either a mobile terminal or a fixed terminal. In the embodiments of the present utility model, the form of the electronic device is not specifically limited.

[0097] Combined with Figure 11 、 Figure 12 and Figure 13 As shown in, in some embodiments, the electronic device further includes a main board side body 200, a secondary screen side body 300, and a rotating shaft structure 400; the main board side body 200 and the secondary screen side body 300 are rotatably connected through the rotating shaft structure 400, and the antenna assembly 100 is located on at least one of the main board side body 200 and the secondary screen side body 300.

[0098] With the above arrangement, the electronic device is configured as a foldable electronic device, thereby improving the portability of the electronic device. The antenna assembly 100 is arranged on the main board side body 200 or the secondary screen side body 300, which can realize the application of satellite communication technology in the foldable electronic device.

[0099] Combined with Figure 12 、 Figure 13 and Figure 14 As shown in, in some embodiments, the antenna assembly 100 is located on the main board side body 200; the antenna assembly 100 is located on the main board side body 200; a decorative cover plate 6 is provided on the main board side body 200, and the second radiator 2 is located inside the decorative cover plate 6, or at least part of the decorative cover plate 6 forms the second radiator 2.

[0100] With the above arrangement, the electronic device can reuse the decorative cover plate 6 of the electronic device, use the decorative cover plate 6 to support the second radiator 2, or directly use a part of the structure of the decorative cover plate 6 as the second radiator 2, thereby improving the reuse rate of the components of the electronic device and also solving the problem of reducing the stacking difficulty of the second radiator 2.

[0101] In some possible implementation manners, the decorative cover plate 6 is a rear camera cover plate. The decorative cover plate 6 is made of a metal material, and the decorative cover plate 6 is provided with slot structures for avoiding the camera, and these slot structures serve as the slot structures 23 of the second radiator 2.

[0102] It should be noted that in the present utility model, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through other features therebetween. Moreover, the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.

[0103] In the description of this specification, the description with reference to the terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiments or examples are included in at least one embodiment or example of the present utility model.

[0104] The above are only the embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. An antenna assembly, characterized in that, The antenna assembly (100) includes: a first radiator (1), a second radiator (2), and a phase shifter unit (3); The first radiator (1) and the second radiator (2) are arranged at intervals, and the polarization directions of the first radiator (1) and the second radiator (2) are perpendicular to each other; The phase shifter unit (3) is respectively connected to the first radiator (1) and the second radiator (2), and the phase shifter unit (3) is used to achieve a 90-degree phase difference between the first radiator (1) and the second radiator (2).

2. The antenna assembly according to claim 1, wherein The first radiator (1) is located on the frame (01) of the electronic device, and the second radiator (2) is located inside the frame (01) where the first radiator (1) is located. The antenna assembly is used to achieve satellite communication of the electronic device.

3. The antenna assembly according to claim 1 or 2, characterized in that, The second radiator (2) is a metal sheet, and the second radiator (2) includes at least one grounding point (21) and at least one first feeding point (22); The at least one grounding point (21) is located on at least one edge of the second radiator (2), so that the second radiator (2) is formed into a cavity antenna.

4. The antenna assembly according to claim 3, characterized in that, The second radiator (2) is quadrilateral, a first edge (201) of the second radiator (2) faces the first radiator (1), and the grounding point (21) is located on at least two of the three edges of the second radiator (2) except the first edge (201).

5. The antenna assembly according to claim 4, wherein The first feeding point (22) is located on the first edge (201), and the phase shifter unit (3) is electrically connected to the first feeding point (22).

6. The antenna assembly according to claim 4, wherein The grounding point (21) is located on two adjacent edges of the second radiator (2) except the first edge (201).

7. The antenna assembly according to claim 4, characterized in that, The grounding point (21) is located on the three edges of the second radiator (2) except the first edge (201), and the second radiator (2) operates in a half-wavelength monopole mode.

8. The antenna assembly according to claim 4, wherein A slot structure (23) is provided on the second radiator (2); The grounding point (21) is located on the three edges of the second radiator (2) except the first edge (201), and on one edge of the slot structure (23) facing away from the first edge (201).

9. The antenna assembly according to claim 3, wherein The antenna assembly (100) further includes a high-dielectric-constant filler, and the high-dielectric-constant filler is located between the second radiator (2) and the ground plane.

10. The antenna assembly according to claim 1, characterized in that, The phase shifter unit (3) includes a directional coupler and a circuit board trace structure. One end of the directional coupler is connected to a feed source, and the other end of the directional coupler is respectively connected to the first radiator (1) and the second radiator (2) through the circuit board trace structure.

11. The antenna assembly according to claim 1, wherein, The antenna assembly (100) further includes at least one parasitic radiator (5), and the at least one parasitic radiator (5) is arranged head-to-head or back-to-back with the first radiator (1).

12. An electronic device, characterized in that, The electronic device includes the antenna assembly (100) according to any one of claims 1 to 11.

13. The electronic device according to claim 12, wherein The electronic device further includes a main board side body (200), a secondary screen side body (300), and a rotating shaft structure (400); The main board side body (200) and the secondary screen side body (300) are rotatably connected through the rotating shaft structure (400), and the antenna assembly (100) is located on at least one of the main board side body (200) and the secondary screen side body (300).

14. The electronic device according to claim 13, wherein The antenna assembly (100) is located on the main board side body (200); a decorative cover plate (6) is provided on the main board side body (200), the second radiator (2) is located within the decorative cover plate (6), or at least a part of the decorative cover plate (6) forms the second radiator (2).

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