Beam control method, folded transmission array antenna, communication device and program product

Abstract

The invention relates to a beam control method, a folded transmission array antenna, communication equipment and a program product. The method comprises the following steps: converting a phase compensation array of an antenna into a virtual spherical surface according to a preset sphere center angle, and determining phase compensation data corresponding to the arrangement position of each phase compensation unit in the phase compensation array according to the distance from a feed source of the antenna to each virtual arrangement position in the virtual spherical surface; the preset sphere center angle corresponds to the maximum emergent beam width of the antenna, and the virtual arrangement position is a mapping position of the arrangement position of the phase compensation unit on a virtual spherical surface; arranging the phase compensation units in the phase compensation array according to the phase compensation data corresponding to the arrangement positions of the plurality of phase compensation units; and the feed source is adjusted through a beam width adjustment strategy, so that after the phase compensation array receives the electromagnetic waves generated by the feed source, the phase compensation unit adjusts the outgoing beam width of the electromagnetic waves under the limitation of the maximum outgoing beam width, and the outgoing beams are radiated. By adopting the method, the outgoing beam width can be controlled.

Description

Technical Field

[0001] The present application relates to the field of antenna technology, and in particular to a beam control method, a folded transmission array antenna, a communication device and a program product. Background Art

[0002] Reflectarray antennas, transmissionarray antennas, and the folded reflectarray antennas, folded transmissionarray antennas, and hybrid array antennas generated based on the two all manipulate the outgoing electromagnetic waves through phase compensation to convert the spherical electromagnetic waves emitted by the feed source into planar electromagnetic waves, thereby achieving high-gain radiation of the antenna.

[0003] The traditional phase compensation method is the ray tracing principle, which determines the phase compensation value that each unit needs to provide by calculating the distance from the feed source to each unit on the phase compensation array. However, the traditional phase compensation method can only control the beam pointing of the outgoing electromagnetic wave, but cannot control the beam width of the outgoing electromagnetic wave, which limits the application of the antenna. Summary of the invention

[0004] Based on this, it is necessary to provide a beam control method, folded transmission array antenna, communication equipment and program product that can control the outgoing beam width to solve the problem that the traditional phase compensation method can only control the beam pointing of the outgoing electromagnetic wave but cannot control the beam width of the outgoing electromagnetic wave.

[0005] In a first aspect, the present application provides a beam steering method, comprising:

[0006] The phase compensation array of the antenna is converted into a virtual sphere according to a preset spherical center angle, and the phase compensation data corresponding to the arrangement position of each phase compensation unit in the phase compensation array is determined according to the distance from the antenna feed source to each virtual arrangement position in the virtual spherical surface; the preset spherical center angle corresponds to the maximum output beam width of the antenna, and the virtual arrangement position is the mapping position of the phase compensation unit arrangement position on the virtual spherical surface;

[0007] Arranging phase compensation units in a phase compensation array according to phase compensation data corresponding to arrangement positions of a plurality of phase compensation units;

[0008] The feed source is adjusted through a beam width adjustment strategy so that the phase compensation array adjusts the output beam width of the electromagnetic wave generated by the feed source under the limitation of the maximum output beam width and radiates the output beam.

[0009] In a second aspect, the present application further provides a folded transmission array antenna, the folded transmission array antenna comprising:

[0010] a bottom metasurface including a plurality of reflective units;

[0011] Feed source, integrated in the middle of the bottom metasurface;

[0012] A phase compensation array, comprising a plurality of phase compensation units, wherein the plurality of phase compensation units are arranged and formed by adopting any one of the embodiments of the beam control method of the first aspect, and the phase compensation array is arranged in the radiation direction of the feed source and is arranged parallel to and spaced from the bottom metasurface;

[0013] The feed source is used to adjust through a beam width adjustment strategy so that the phase compensation array adjusts the output beam width of the electromagnetic wave generated by the feed source within the maximum output beam range and radiates the output beam.

[0014] In a third aspect, the present application further provides a communication device, including a memory and a processor, wherein the memory stores a computer program, and when the processor executes the computer program, the beam control method of any embodiment in the first aspect is implemented.

[0015] In a fourth aspect, the present application further provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the beam control method of any embodiment in the first aspect.

[0016] In a fifth aspect, the present application also provides a computer program product, including a computer program, which, when executed by a processor, implements the beam control method of any embodiment in the first aspect.

[0017] The above-mentioned beam control method, folded transmission array antenna, communication equipment, storage medium and computer program product propose a new phase compensation method based on ray tracing method, which can convert the phase compensation array of the antenna into a virtual sphere according to a preset spherical center angle, and determine the phase compensation data corresponding to the arrangement position of each phase compensation unit in the phase compensation array according to the distance from the antenna feed source to each virtual arrangement position in the virtual sphere, so as to arrange the phase compensation units in the phase compensation array according to the phase compensation data corresponding to the arrangement position of each phase compensation unit. Since the preset spherical center angle corresponds to the width of the outgoing beam after phase compensation of the phase compensation array, the phase compensation units arranged on the virtual sphere can control the outgoing beam width and ensure that the outgoing beam width does not exceed the maximum outgoing beam width. The phase compensation method determines the metasurface of phase distribution, that is, the phase compensation units arranged on the phase compensation array according to the virtual sphere. When the output beam width needs to be adjusted, the feed source can be adjusted through the beam width adjustment strategy, so that the phase compensation array can adjust the output beam width of the electromagnetic wave within the limit of the maximum output beam width, and radiate the output beam, thereby adjusting the output beam width of the electromagnetic wave. This solves the problem that the traditional phase compensation method can only control the beam pointing of the output electromagnetic wave but cannot control the beam width of the output electromagnetic wave. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related technologies, the drawings required for use in the embodiments or the related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 is a schematic flow chart of a beam control method in an embodiment;

[0020] Figure 2 A schematic diagram of a virtual spherical surface protruding toward the feed direction in one embodiment;

[0021] Figure 3 is a schematic diagram of a virtual spherical surface that is concave toward the feed direction in one embodiment;

[0022] Figure 4 A schematic diagram of the structure of a folded transmission array antenna in one embodiment;

[0023] Figure 5 is a schematic diagram of an arrangement of sixteen transmissive units in a phase compensation array in one embodiment;

[0024] Figure 6 It is a structural schematic diagram of a folded transmission array antenna in another embodiment;

[0025] Figure 7 It is a structural schematic diagram of a folded transmission array antenna in yet another embodiment;

[0026] Figure 8 is a schematic diagram of the structure of a reflective unit in a bottom metasurface in one embodiment;

[0027] Fig. 9 is a schematic diagram of an amplitude simulation structure of a reflective unit in one embodiment;

[0028] Fig.10 is a schematic structural diagram of a dual-polarization feed in one embodiment;

[0029] Fig.11 is a schematic structural diagram of a transmissive unit in a phase compensation array in an embodiment;

[0030] Fig.12 It is a schematic diagram of the transmission amplitude simulation results of units 1 to 4 in one embodiment;

[0031] Fig.13 It is a schematic diagram of the transmission amplitude simulation results of units 5 to 8 in one embodiment;

[0032] Fig.14is a schematic diagram of the transmission amplitude simulation results of units 9 to 12 in one embodiment;

[0033] Fig.15 is a schematic diagram of transmission amplitude simulation results of units 13 to 16 in one embodiment;

[0034] Fig.16 It is a schematic diagram of the transmission phase simulation results of units 1 to 4 in one embodiment;

[0035] Fig.17 is a schematic diagram of transmission phase simulation results of units 5 to 8 in one embodiment;

[0036] Fig.18 is a schematic diagram of transmission phase simulation results of units 9 to 12 in one embodiment;

[0037] Fig.19 Schematic diagram of transmission phase simulation results of units 13 to 16 in one embodiment;

[0038] Fig. 20 FIG. 1 is a schematic diagram of far-field simulation results of a folded transmission array antenna feed in an x-polarization mode and an operating frequency of 26 GHz in an embodiment in which the virtual spherical surface is a virtual spherical surface that is concave toward the feed direction;

[0039] Fig.21 It is a schematic diagram of the far-field simulation results of the folded transmission array antenna feed in the y-polarization mode and the operating frequency of 26 GHz in an embodiment in which the virtual spherical surface is a virtual spherical surface concave toward the feed direction;

[0040] Fig. 22 A schematic diagram of the structure of a reflective array antenna and a transmission array antenna in one embodiment;

[0041] Fig.23 A schematic diagram of the structure of a folded reflector array antenna and a hybrid array antenna in one embodiment;

[0042] Fig.24 FIG. 4 is a diagram showing the internal structure of a communication device in one embodiment.

[0043] Reference numerals:

[0044] 300, reflecting surface; 400, transmitting surface; 500, reflecting metasurface; 700, bottom metasurface; 701, first upper metal layer; 702, intermediate dielectric layer; 703, first lower metal layer; 800, feed source; 801, upper radiation metal layer; 802, first upper dielectric layer; 803, intermediate metal stratum; 804, first lower dielectric layer; 805, lower microstrip line metal layer; 806, first semi-cured sheet layer; 807, metal blind hole; 808, metal through hole; 900, phase compensation array; 901, second upper metal layer; 902, intermediate metal layer; 903, second lower metal layer; 904, second upper dielectric layer; 905, second lower dielectric layer; 906, second semi-cured sheet layer. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0046] The beam control method provided in the embodiment of the present application is as follows: Figure 1 As shown, the method is applied to a folded transmission array antenna as an example for explanation. It can be understood that the method can also be applied to a reflective array antenna, a transmission array antenna, a folded reflective array antenna or a hybrid array antenna. In this embodiment, the method includes the following steps 102 to 106. Among them:

[0047] Step 102, converting the phase compensation array of the antenna into a virtual sphere according to a preset spherical center angle, and determining the phase compensation data corresponding to the arrangement position of each phase compensation unit in the phase compensation array according to the distance from the antenna feed source to each virtual arrangement position in the virtual sphere; the preset spherical center angle corresponds to the maximum output beam width of the antenna, and the virtual arrangement position is the mapping position of the phase compensation unit arrangement position on the virtual sphere.

[0048] Among them, the phase compensation array refers to a planar array for achieving phase compensation, such as a phase compensation array can be a square array or a circular array. The phase compensation array includes a plurality of phase compensation unit arrangement positions, and the phase compensation unit arrangement position refers to the area used to place the phase compensation unit. The phase compensation unit in the phase compensation array is used to adjust the output beam width. The virtual sphere refers to the circumscribed sphere of the phase compensation array of the antenna. When the phase compensation array is a square array, the preset spherical center angle is the angle formed by the center of the virtual sphere and the line connecting the two vertices of the phase compensation array in the same direction. When the phase compensation array is a circular array, the preset spherical center angle is the angle formed by the center of the virtual sphere and the line connecting the two end points of the diameter of the phase compensation array. Since the center angle of the sphere corresponds to the width of the outgoing beam after phase compensation by the phase compensation array, in phase compensation, the width of the final outgoing beam can be controlled by controlling the center angle of the virtual sphere. The width of the outgoing beam increases when the center angle of the sphere increases, and the width of the outgoing beam decreases when the center angle of the sphere decreases. Therefore, the center angle of the sphere can be set according to the desired outgoing beam width to obtain a preset center angle of the sphere. The outgoing beam width corresponding to the preset center angle of the sphere is the maximum outgoing beam width. The radiation direction of the feed source is toward the phase compensation array. The feed source is used to generate electromagnetic waves and radiate electromagnetic waves to the phase compensation array. The virtual spherical surface includes multiple virtual arrangement positions, and the virtual arrangement positions are obtained by mapping the arrangement positions of the phase compensation units onto the virtual spherical surface. The phase compensation data corresponding to the arrangement positions of each phase compensation unit refers to the phase compensation value required to be provided for each phase compensation unit arrangement position.

[0049] Optionally, a preset spherical center angle and the size of the phase compensation array of the antenna are obtained, and the phase compensation array of the antenna is converted into a virtual sphere according to the preset spherical center angle and the size of the phase compensation array of the antenna, such as Figure 2 and 3 As shown, Figure 2 is a schematic diagram of a virtual sphere protruding toward the feed direction, Figure 3 It is a schematic diagram of a virtual sphere concave toward the feed direction. After obtaining the virtual sphere, the distance from the feed of the antenna to each virtual arrangement position in the virtual sphere is determined. According to the distance from the feed of the antenna to each virtual arrangement position in the virtual sphere, and the position coordinates of each phase compensation unit arrangement position in the phase compensation array, the phase compensation data corresponding to each phase compensation unit arrangement position is determined.

[0050] Exemplarily, when the phase compensation array is a square array, the center point of the diagonal of the phase compensation array and the center of the virtual sphere should be in the same vertical direction. According to the preset spherical center angle, the distance between the two vertices of the phase compensation array corresponding to the preset spherical center angle, and the application of the Pythagorean theorem, the radius of the virtual spherical surface is determined. According to the radius of the virtual spherical surface, the center of the virtual spherical surface is determined in the vertical direction where the center point of the diagonal is located. A spherical coordinate system is established with the center of the sphere as the coordinate origin to obtain an expression for the virtual spherical surface.

[0051] When the phase compensation array is a circular array, the center of the phase compensation array and the center of the virtual sphere should be in the same vertical direction. According to the preset spherical center angle, the distance between the two end points of the phase compensation array corresponding to the preset spherical center angle, and the application of the Pythagorean theorem, the radius of the virtual sphere is determined. According to the radius of the virtual sphere, the center of the virtual sphere is determined in the vertical direction where the center of the phase compensation array is located. A spherical coordinate system is established with the center of the sphere as the coordinate origin to obtain the expression of the virtual sphere.

[0052] Step 104 , arranging the phase compensation units in a phase compensation array according to the phase compensation data corresponding to the arrangement positions of the plurality of phase compensation units.

[0053] Optionally, in the process of determining the phase compensation data, there is no phase compensation unit in the phase compensation array. The distance from the antenna feed to each virtual arrangement position in the virtual sphere is calculated, and the phase compensation data corresponding to each arrangement position of the phase compensation unit in the phase compensation array is determined according to the distance. The phase compensation data corresponding to the arrangement position of each phase compensation unit is compared with the phase response range of multiple phase compensation units respectively, and the phase response range of the phase compensation data corresponding to the arrangement position of each phase compensation unit is determined, so as to obtain the phase compensation unit corresponding to the arrangement position of each phase compensation unit, and the phase compensation unit corresponding to the arrangement position of each phase compensation unit is placed in the corresponding array arrangement position to complete the arrangement of the phase compensation unit in the phase compensation array. The arranged phase compensation unit is a phase-distributed metasurface. The arranged metasurface can control the outgoing beam width of the electromagnetic wave and ensure that the outgoing beam width of the electromagnetic wave is adjusted within the maximum outgoing beam width.

[0054] Step 106, adjusting the feed source through a beam width adjustment strategy, so that the phase compensation array adjusts the output beam width of the electromagnetic wave generated by the feed source under the limitation of the maximum output beam width, and radiates the output beam.

[0055] Optionally, after the phase compensation unit is arranged, when the output beam width needs to be adjusted, the feed source can be adjusted through the beam width adjustment strategy to adjust the width of the output beam of the electromagnetic wave. After the feed source generates the electromagnetic wave, it sends the electromagnetic wave to the phase compensation array. Since the feed source is a feed source adjusted by the beam width adjustment strategy, the phase gradient generated by the electromagnetic wave generated by the feed source after passing through the phase compensation array can be adjusted, so that the metasurface adjusts the output beam width of the electromagnetic wave and radiates the adjusted output beam.

[0056] Further, adjusting the feed source through the beam width adjustment strategy may include adjusting the distance between the feed source and the phase compensation array and switching the feeding port of the feed source.

[0057] Furthermore, adjusting the output beam width of the electromagnetic wave refers to adjusting the main beam width of the output beam of the electromagnetic wave.

[0058] In the above-mentioned beam control method, a novel phase compensation method based on ray tracing is proposed, which can convert the phase compensation array of the antenna into a virtual sphere according to a preset spherical center angle, and determine the phase compensation data corresponding to the arrangement position of each phase compensation unit in the phase compensation array according to the distance from the antenna feed source to each virtual arrangement position in the virtual sphere, so as to arrange the phase compensation units in the phase compensation array according to the phase compensation data corresponding to the arrangement position of each phase compensation unit. Since the preset spherical center angle corresponds to the width of the outgoing beam after phase compensation of the phase compensation array, the phase compensation units arranged on the virtual sphere can control the outgoing beam width and ensure that the outgoing beam width does not exceed the maximum outgoing beam width. The phase compensation method determines the metasurface of phase distribution, that is, the phase compensation units arranged on the phase compensation array according to the virtual sphere. When the output beam width needs to be adjusted, the feed source can be adjusted through the beam width adjustment strategy, so that after the phase compensation array receives the electromagnetic wave generated by the feed source, the output beam width of the electromagnetic wave is adjusted by the phase compensation unit within the limit of the maximum output beam width, and the output beam is radiated to adjust the output beam width of the electromagnetic wave, thereby solving the problem that the traditional phase compensation method can only control the beam pointing of the output electromagnetic wave but cannot control the beam width of the output electromagnetic wave.

[0059] In addition, this method can obtain the metasurface of the phase distribution required for the desired beam width only by calculation, thereby controlling the final beam width of the antenna, without the need to use artificial intelligence and other auxiliary means for multiple iterative optimizations, thereby greatly reducing the design time, and the control of the output beam width is completely based on phase control without any amplitude control, which greatly reduces the requirements for the phase compensation unit and avoids the introduction of losses caused by amplitude control. This method is applicable to all types of phase-modulated phase compensation units and antenna feeds.

[0060] In an exemplary embodiment, in step 102, the phase compensation data corresponding to the arrangement position of each phase compensation unit in the phase compensation array is determined according to the distance from the feed source of the antenna to each virtual arrangement position in the virtual sphere, including: determining the distance from the feed source to each virtual arrangement position according to the position coordinates of the feed source in the antenna and the position coordinates of each virtual arrangement position in the virtual sphere; determining the phase compensation data corresponding to the arrangement position of each phase compensation unit according to the distance from the feed source to each virtual arrangement position, the arrangement position of each phase compensation unit in the phase compensation array, the preset beam pointing and the wave number corresponding to the operating frequency.

[0061] Optionally, the arrangement positions of the phase compensation units in the phase compensation array are mapped onto a virtual sphere to obtain the position coordinates of each virtual arrangement position in the virtual sphere. The distance from the feed source to each virtual arrangement position is determined based on the position coordinates of the feed source in the antenna and the position coordinates of each virtual arrangement position in the virtual sphere.

[0062] According to the distance from the feed source to each virtual arrangement position, the arrangement position of each phase compensation unit in the phase compensation array, the preset beam pointing and the wave number corresponding to the operating frequency, the phase compensation data corresponding to each phase compensation unit arrangement position in the phase compensation array is determined. Among them, the preset beam pointing includes the azimuth and elevation angle of the beam. The wave number corresponding to the operating frequency refers to the number of complete waves contained in a unit length. The relationship between the phase compensation data corresponding to the arrangement position of each phase compensation unit and the distance from the feed source to each virtual arrangement position in the virtual sphere can be expressed as:

[0063]

[0064] in, It represents the phase compensation data corresponding to the arrangement position (x, y) of the phase compensation unit, k0 represents the wave number corresponding to the operating frequency, (θ, φ) represents the preset beam pointing, where θ represents the elevation angle of the beam, φ represents the azimuth angle of the beam, which is the parameter of the far-field performance index of the antenna, and L represents the distance between the feed source and the virtual arrangement position corresponding to the arrangement position (x, y) of the phase compensation unit.

[0065] In this embodiment, the phase compensation data corresponding to the arrangement position of each phase compensation unit in the phase compensation array is determined by the distance from the feed source to each virtual arrangement position of the virtual sphere, the arrangement position of each phase compensation unit in the phase compensation array, the preset beam pointing and the wave number corresponding to the operating frequency, and the phase compensation value required to be provided by the arrangement position of each phase compensation unit can be accurately calculated.

[0066] In an exemplary embodiment, the beam width adjustment strategy includes at least one of a position adjustment strategy and a polarization switching strategy. The position adjustment strategy refers to adjusting the distance between the feed source and the phase compensation array. The polarization switching strategy refers to performing polarization switching on the feed source when the feed source is a dual-polarization feed source. A dual-polarization feed source refers to a feed source that can generate two polarized waves, an x-polarized wave and a y-polarized wave.

[0067] In an optional manner of the above embodiment, when the beam width adjustment strategy includes a position adjustment strategy, step 106, adjusting the feed source through the beam width adjustment strategy so that the phase compensation array adjusts the exit beam width of the electromagnetic wave generated by the feed source within the limit of the maximum exit beam width includes: adjusting the distance between the feed source and the phase compensation array through the position adjustment strategy so that the phase compensation array adjusts the exit beam width of the electromagnetic wave generated by the feed source within the limit of the maximum exit beam width.

[0068] The phase gradient refers to the ratio of the phase difference between the phase compensation units to the distance between the phase compensation unit and the center of the metasurface. The distance between the phase compensation unit and the center of the metasurface refers to the straight-line distance from the phase compensation unit to the center of the metasurface.

[0069] Optionally, the distance between the feed source and the phase compensation array is adjusted through a position adjustment strategy, so that the phase gradient generated by the electromagnetic wave generated by the feed source after passing through the phase compensation array can be adjusted, so that after receiving the electromagnetic wave, the phase compensation array can adjust the output beam width of the electromagnetic wave accordingly. The adjustment of the output beam width is limited within the maximum output beam width and cannot exceed the maximum output beam width.

[0070] In this embodiment, the distance between the feed source and the phase compensation array is adjusted to adjust the phase gradient of the electromagnetic wave generated by the feed source after passing through the phase compensation array, so that the phase compensation array can adjust the output beam width of the electromagnetic wave within the limit of the maximum output beam width, thereby realizing continuous transformation and control of the output beam width, thereby increasing the flexibility of application.

[0071] In the above optional method, adjusting the distance between the feed source and the phase compensation array through a position adjustment strategy so that the phase compensation array adjusts the output beam width of the electromagnetic wave generated by the feed source within the limit of the maximum output beam width includes: when there is one feed source, moving the feed source in a direction close to or away from the phase compensation array through a position adjustment strategy to adjust the distance between the feed source and the phase compensation array so that the phase compensation array adjusts the output beam width of the electromagnetic wave generated by the feed source within the limit of the maximum output beam width.

[0072] In the case of a feed source, the feed source is moved in a direction close to or away from the phase compensation array through a position adjustment strategy to reduce or increase the distance between the feed source and the phase compensation array, thereby adjusting the phase gradient generated by the electromagnetic wave generated by the feed source after passing through the phase compensation array, so that the phase compensation array adjusts the output beam width of the electromagnetic wave accordingly, and the adjustment of the output beam width is limited within the maximum output beam width.

[0073] In the above optional method, adjusting the distance between the feed source and the phase compensation array through a position adjustment strategy so that the phase compensation array adjusts the output beam width of the electromagnetic wave generated by the feed source within the limit of the maximum output beam width includes: in the case where there are multiple feed sources, the distances between the multiple feed sources and the phase compensation array are different, switching between the multiple feed sources through a position adjustment strategy to adjust the distance between the feed source and the phase compensation array, so that the phase compensation array adjusts the output beam width of the electromagnetic wave within the limit of the maximum output beam width.

[0074] In the case where multiple feed sources are provided, the distances between the multiple feed sources and the phase compensation array are different. The phase compensation data corresponding to the arrangement position of each phase compensation unit in the phase compensation array can be determined according to the distance from any feed source of the antenna to each virtual arrangement position in the virtual sphere, and the phase compensation units can be arranged in the phase compensation array according to the phase compensation data corresponding to the arrangement positions of the multiple phase compensation units.

[0075] By switching between multiple feed sources through a position adjustment strategy, the feed source for generating electromagnetic waves is switched, and the distance between the feed source for generating electromagnetic waves and the phase compensation array is adjusted to adjust the phase gradient generated by the electromagnetic waves generated by the feed source after passing through the phase compensation array, so that the phase compensation array can adjust the output beam width of the electromagnetic wave accordingly within the maximum output beam width range.

[0076] Furthermore, multiple feed sources are all arranged on one side of the phase compensation array. Furthermore, multiple feed sources can also be arranged in the same vertical direction, which can avoid the target feed sources arranged on different sides of the phase compensation array and in a non-working state from affecting the outgoing beam, thereby more stably controlling the outgoing beam width.

[0077] Optionally, the feed sources may be arranged at equal intervals.

[0078] In this embodiment, multiple feed sources are set and switched between the multiple feed sources to adjust the phase gradient generated by the electromagnetic waves generated by the feed sources after passing through the phase compensation array, so that the phase compensation array can adjust the output beam width of the electromagnetic wave within the limit of the maximum output beam width, and can realize continuous transformation and control of the output beam width, thereby increasing the flexibility of application.

[0079] In the above optional manner, the virtual spherical surface includes two types, a virtual spherical surface convex toward the feed direction and a virtual spherical surface concave toward the feed direction. Different types of virtual spherical surfaces correspond to different output beam width adjustment methods.

[0080] The distance between the feed source and the phase compensation array is adjusted by a position adjustment strategy so that the phase compensation array can adjust the output beam width of the electromagnetic wave generated by the feed source under the limitation of the maximum output beam width. The method includes:

[0081] In the case where the virtual spherical surface is a virtual spherical surface convex toward the feed source, the distance between the feed source and the phase compensation array is reduced or increased through a position adjustment strategy, so that the phase compensation array reduces or increases the output beam width of the electromagnetic wave generated by the feed source under the limitation of the maximum output beam width. In the case where the virtual spherical surface is a virtual spherical surface concave toward the feed source, the distance between the feed source and the phase compensation array is reduced or increased through a position adjustment strategy, so that the phase compensation array increases or decreases the output beam width of the electromagnetic wave generated by the feed source under the limitation of the maximum output beam width.

[0082] Optionally, in the case where the virtual spherical surface is a virtual spherical surface convex toward the feed source, the distance between the feed source and the phase compensation array is reduced or increased through a position adjustment strategy to increase or decrease the phase gradient generated by the electromagnetic wave generated by the feed source after passing through the phase compensation array, so that the phase compensation unit reduces or increases the exit beam width of the electromagnetic wave under the limitation of the maximum exit beam width. In the case where the virtual spherical surface is a virtual spherical surface concave toward the feed source, the distance between the feed source and the phase compensation array is reduced or increased through a position adjustment strategy to increase or decrease the phase gradient generated by the electromagnetic wave generated by the feed source after passing through the phase compensation array, so that the phase compensation unit increases or decreases the exit beam width of the electromagnetic wave under the limitation of the maximum exit beam width.

[0083] Furthermore, when the distance between the feed source and the phase compensation array is reduced by the position adjustment strategy, in order to generate a high-gain beam, it is necessary to increase the phase gradient generated by the electromagnetic wave generated by the feed source after passing through the phase compensation array. For the virtual spherical surface protruding toward the feed source, its phase gradient increases relative to the phase compensation array that has not undergone virtual spherical surface conversion, which meets the need to generate a high-gain beam, and the output beam width decreases. For the virtual spherical surface concave toward the feed source, its phase gradient decreases relative to the phase compensation array that has not undergone virtual spherical surface conversion, which does not meet the need to generate a high-gain beam, and the output beam width increases.

[0084] When the distance between the feed source and the phase compensation array is increased through the position adjustment strategy, in order to generate a high-gain beam, it is necessary to reduce the phase gradient generated by the electromagnetic wave generated by the feed source after passing through the phase compensation array. For the virtual spherical surface protruding toward the feed source, its phase gradient increases relative to the phase compensation array that has not undergone virtual spherical transformation, which does not meet the needs of generating a high-gain beam, and the output beam width increases. For the virtual spherical surface concave toward the feed source, its phase gradient decreases relative to the phase compensation array that has not undergone virtual spherical transformation, which meets the needs of generating a high-gain beam, and the output beam width decreases.

[0085] In this embodiment, for the virtual spherical surface convex toward the feed direction and the virtual spherical surface concave toward the feed direction, the corresponding feed adjustment method is used to change the phase gradient generated by the electromagnetic wave generated by the feed source after passing through the phase compensation array, so as to adjust the beam focusing ability of the metasurface, so that the phase compensation unit can effectively adjust the output beam width.

[0086] In an optional manner of the above embodiment, when the beam width adjustment strategy includes a polarization switching strategy, the feed source is a dual-polarization feed source; adjusting the feed source through the beam width adjustment strategy so that the phase compensation array adjusts the output beam width of the electromagnetic wave generated by the feed source within the limit of the maximum output beam width includes: switching the feeding port of the feed source through the polarization switching strategy to change the distance traveled by the electromagnetic wave generated by the feed source to radiate the output beam through the phase compensation array, so that the phase compensation array switches the output beam width of the electromagnetic wave.

[0087] Optionally, the dual-polarization feed has two feeding ports. By switching the feeding ports of the feed using a polarization switching strategy, the feed will emit electromagnetic waves of different polarizations. Electromagnetic waves of different polarizations radiate outgoing beams through different distances through the phase compensation array, so the phase compensation unit can switch the outgoing beam width of the electromagnetic wave.

[0088] In this embodiment, the output beam width of the electromagnetic wave is switched by switching the feeding port of the dual-polarization feed source, so that the output beam width can be switched quickly.

[0089] In the above optional manner, the feeding port of the feed source is switched by a polarization switching strategy to change the distance that the electromagnetic wave generated by the feed source radiates the outgoing beam through the phase compensation array, so that the outgoing beam width of the electromagnetic wave switched by the phase compensation array includes:

[0090] In the case where the virtual spherical surface is a virtual spherical surface protruding toward the feed source, the feed source is switched from the first feeding port to the second feeding port through a polarization switching strategy to reduce the distance that the electromagnetic wave generated by the feed source passes through the phase compensation array to radiate an output beam, so that the phase compensation array switches the output beam width of the electromagnetic wave to a narrow beam width; the feed source is switched from the second feeding port to the first feeding port through a polarization switching strategy to increase the distance that the electromagnetic wave generated by the feed source passes through the phase compensation array to radiate an output beam, so that the phase compensation array switches the output beam width of the electromagnetic wave to a wide beam width.

[0091] In the case where the virtual spherical surface is a virtual spherical surface that is concave toward the feed source, the feed source is switched from the first feeding port to the second feeding port through a polarization switching strategy to reduce the distance that the electromagnetic wave generated by the feed source passes through the phase compensation array to radiate an output beam, so that the phase compensation array switches the output beam width of the electromagnetic wave to a wide beam width; the feed source is switched from the second feeding port to the first feeding port through a polarization switching strategy to increase the distance that the electromagnetic wave generated by the feed source passes through the phase compensation array to radiate an output beam, so that the phase compensation array switches the output beam width of the electromagnetic wave to a narrow beam width.

[0092] Optionally, the feed source includes a first feeding port and a second feeding port, the first feeding port is used to output an x-polarized wave, and the second feeding port is used to output a y-polarized wave.

[0093] When the feed source is switched from the first feed port to the second feed port, the distance that the electromagnetic wave generated by the feed source radiates the outgoing beam through the phase compensation array is reduced. In order to generate a high-gain beam, it is necessary to increase the phase gradient generated by the electromagnetic wave generated by the feed source after passing through the phase compensation array. For the virtual spherical surface protruding toward the feed source, the phase gradient is increased relative to the phase compensation array that has not undergone virtual spherical surface conversion, so it meets the needs of generating a high-gain beam, and the outgoing beam width is switched to a narrow beam width. For the virtual spherical surface concave toward the feed source, the phase gradient is reduced relative to the phase compensation array that has not undergone virtual spherical surface conversion, which does not meet the needs of generating a high-gain beam, and the outgoing beam width is switched to a wide beam width.

[0094] When the feed source is switched from the second feed port to the first feed port, the distance that the electromagnetic wave generated by the feed source radiates the outgoing beam through the phase compensation array increases. In order to generate a high-gain beam, it is necessary to reduce the phase gradient generated by the electromagnetic wave generated by the feed source after passing through the phase compensation array. For the virtual spherical surface protruding toward the feed source, its phase gradient increases relative to the phase compensation array that has not undergone virtual spherical conversion, which does not meet the needs of generating a high-gain beam, and the outgoing beam width is switched to a wide beam width. For the virtual spherical surface concave toward the feed source, its phase gradient generated by the electromagnetic wave generated by the feed source after passing through the phase compensation array is reduced relative to the phase compensation array that has not undergone virtual spherical conversion, which meets the needs of generating a high-gain beam, and the outgoing beam width is switched to a narrow beam width.

[0095] In this embodiment, for the virtual spherical surface that is concave toward the feed source and the virtual spherical surface that is concave and convex toward the feed source, the switching of the dual-polarized waves can be realized by simply switching the feeding port, thereby realizing the rapid switching of the output beam width.

[0096] Based on the same inventive concept, the embodiment of the present application also provides a folded transmission array antenna for implementing the beam control method involved above. The implementation solution provided by the folded transmission array antenna is similar to the implementation solution recorded in the above method, so the specific limitations in one or more folded transmission array antenna embodiments provided below can refer to the limitations of the beam control method above, and will not be repeated here.

[0097] In an exemplary embodiment, Figure 4 As shown, a folded transmission array antenna is provided, comprising: a bottom metasurface 700, a feed source 800 and a phase compensation array 900, wherein: the bottom metasurface 700 comprises a plurality of reflective units; the feed source 800 is integrated in the middle position of the bottom metasurface 700; the phase compensation array 900 comprises a plurality of phase compensation units, and the plurality of phase compensation units are arranged and formed by any of the above-mentioned beam control method embodiments, and the phase compensation array 900 is arranged in the radiation direction of the feed source 800 and is arranged parallel to and spaced from the bottom metasurface 700. The feed source 800 is used to adjust through a beam width adjustment strategy, so that the phase compensation array 900 adjusts the output beam width of the electromagnetic wave generated by the feed source within the maximum output beam range, and radiates the output beam.

[0098] Optionally, the radiation direction of the feed source 800 is toward the phase compensation array 900. The phase compensation units in the phase compensation array 900 include multiple phase compensation units. Since the phase responses between the multiple phase compensation units are different, the phases of electromagnetic waves at different positions on the phase compensation array can be changed to achieve phase compensation. The bottom metasurface 700 and the phase compensation array 900 are arranged in parallel at a set distance interval. Furthermore, the phase compensation unit is a transmission unit, which can specifically include sixteen types, namely the first phase compensation unit to the sixteenth phase compensation unit. The schematic diagram of the arrangement of the sixteen phase compensation units in the phase compensation array 900 is shown in FIG. Figure 5 As shown, the various phase compensation units can be distinguished by color. By calculation, it can be known that 360° / 16=22.5°, and the difference in phase response between adjacent serial numbered transmission units is close to 22.5°. The arrangement of the sixteen phase compensation units on the phase compensation array 900 uses any of the above-mentioned beam control methods that can control the output beam width. Therefore, the phase compensation unit can adjust the output beam width of the electromagnetic wave accordingly after adjusting the feed source, and radiate the adjusted output beam.

[0099] In this embodiment, the folded transmission array antenna arranges phase compensation units on the phase compensation array 900 through any of the above-mentioned beam control method embodiments, and when the outgoing beam width needs to be adjusted, the feed source can be adjusted through the beam width adjustment strategy, so that the phase compensation array 900 can adjust the outgoing beam width of the electromagnetic wave within the limit of the maximum outgoing beam width after receiving the electromagnetic wave generated by the feed source. In addition, the folded transmission array antenna can be processed and implemented using mature PCB (Printed Circuit Board) technology, which has low processing difficulty and low cost. In summary, the folded transmission array antenna with controllable beam width has technical effects such as low cost and low complexity, and solves the problem that the traditional antenna using ray tracing method for phase compensation can only control the beam pointing but not the beam width.

[0100] In an exemplary embodiment, the beam width adjustment strategy includes a position adjustment strategy; the bottom metasurface 700 is also used to adjust the distance between the bottom metasurface 700 and the phase compensation array 900 through the position adjustment strategy to adjust the distance between the feed source 800 and the phase compensation array 900, so that the phase compensation array 900 can regulate the output beam width of the electromagnetic wave under the limitation of the maximum output beam width. In this embodiment, the distance between the feed source 800 and the phase compensation array 900 can be adjusted by moving the bottom metasurface 700.

[0101] In an exemplary embodiment, Figure 6As shown, the feed source 800 is a dual-polarization feed source, and the beam width adjustment strategy includes a polarization switching strategy; the feed source 800 is also used to switch the feeding port of the feed source 800 through the polarization switching strategy to change the distance that the electromagnetic wave generated by the feed source 800 passes through the phase compensation array 900 to radiate the outgoing beam, so that the phase compensation array 900 switches the outgoing beam width of the electromagnetic wave. When the virtual sphere is a concave virtual sphere, the x-polarized wave generated by the feed source 800 is reflected by the phase compensation array 900, converted to y-polarized by the bottom metasurface 700 and reflected again, and finally radiates a pencil-shaped beam with a narrow beam width after being transmitted through the phase compensation array 900. The y-polarized wave generated by the feed source 800 radiates a flat-top beam with a wide beam width after being transmitted through the phase compensation array 900.

[0102] For example, see Figure 4 and Figure 6 , the side length of the bottom metasurface 700 is D1, which is set to 80 mm here. The side length of the phase compensation array 900 is D3, which is set to 80 mm here. The vertical distance H between the dual-polarization feed and the phase compensation array 900 is set to 30 mm. At this time, due to the folding of the electromagnetic wave propagation path, the actual distance between the feed 800 in the x-polarization state and the phase compensation array 900 is 90 mm, while the actual distance between the feed 800 in the y-polarization state and the phase compensation array 900 is 30 mm. A phase compensation method in which a virtual sphere is recessed into the feed 800 is used, and the spherical center angle used in the phase compensation method is set to 75°.

[0103] In an exemplary embodiment, Figure 7 As shown, a folded transmission array antenna is provided, including a plurality of feed sources 800. The bottom metasurface 700 is also used to switch between the plurality of feed sources 800 through a position adjustment strategy to adjust the distance between the feed source 800 and the phase compensation array 900, so that the phase compensation array 900 adjusts the output beam width of the electromagnetic wave under the limitation of the maximum output beam width. Optionally, the feed sources 800 can be arranged at equal intervals.

[0104] In an exemplary embodiment, Figure 8 As shown, it is a schematic diagram of the structure of the reflective unit in the bottom metasurface 700, and the reflective unit includes a first upper metal layer 701, an intermediate dielectric layer 702 and a first lower metal layer 703. The first upper metal layer 701 is a polarization conversion structure, and the first lower metal layer 703 is a metal bottom layer. Fig. 9 As shown in the figure, it is a schematic diagram of the amplitude simulation structure of the reflective unit, R y-x It means that the reflective unit converts the x-polarized wave into the y-polarized wave, and the polarization conversion amplitude is greater than -0.3dB at the operating frequency of 26GHz, which can achieve polarization conversion with low loss.

[0105] In an exemplary embodiment, Fig.10 As shown, it is a schematic diagram of the structure of a dual-polarization feed source, which is a magnetoelectric dipole antenna array. The dual-polarization feed source includes an upper radiating metal layer 801, a first upper dielectric layer 802, an intermediate metal layer 803, a first lower dielectric layer 804 and a lower microstrip metal layer 805. The first upper dielectric layer 802 and the first lower dielectric layer 804 are connected by a first semi-cured sheet layer 806, and the upper radiating metal layer 801 and the intermediate metal layer 803 are connected by a metal blind hole 807. The lower microstrip metal layer 805 feeds the upper radiating metal layer 801 through a metal through hole 808. The intermediate metal layer 803 is opened so that the metal through hole 808 can pass through. The lower microstrip metal layer 805 is the feeding structure of the antenna. By switching the feeding port, the polarization can be switched, so that the antenna radiates different polarizations. The metal through hole 808 is a feeding hole.

[0106] The thickness and material of the intermediate dielectric layer 702 and the first upper dielectric layer 802 are exactly the same, so as to realize the integrated processing of the dual-polarization feed source and the bottom metasurface 700.

[0107] In an exemplary embodiment, Fig.11 As shown, it is a schematic diagram of the structure of the phase compensation unit in the phase compensation array 900, and the phase compensation unit includes a second upper metal layer 901, an intermediate metal layer 902, a second lower metal layer 903, a second upper dielectric layer 904 and a second lower dielectric layer 905, and the second upper dielectric layer 904 and the second lower dielectric layer 905 are bonded by a second semi-cured sheet layer 906.

[0108] The second upper metal layer 901 and the second lower metal layer 903 are orthogonal metal bars, which can only transmit electromagnetic waves whose polarization direction is perpendicular to the direction of the bars. The intermediate metal layer 902 is a polarization conversion unit, which can convert the polarization of the electromagnetic wave, and by changing the structure and size of the intermediate metal layer 902, the phase response of the phase compensation unit can be changed. The phase response refers to the controllable range of the phase that can be provided. The incident electromagnetic wave passes through different phase compensation units, and the outgoing phase will be different. The adjustment of the phase gradient between the phase compensation units depends on the phase response. Exemplarily, the intermediate metal layer 902 is in the shape of a double-headed arrow, and the phase response of the phase compensation unit can be changed by changing the geometric size and direction of the arrow.

[0109] The schematic diagram of the transmission amplitude simulation results of the phase compensation unit is shown in Figures 12 to 15 The schematic diagram of the transmission phase simulation result of the phase compensation unit is shown in Figures 16 to 19 As shown, the phase compensation unit includes sixteen types, which are represented as unit 1 to unit 16, T x-yIt means converting the y-polarized wave into the x-polarized wave. It can be seen that the phase response of the sixteen units covers a 360° phase range, achieving 4-bit (four-bit binary) phase compensation, and the polarization transmission amplitude of each unit is greater than -0.3dB at the operating frequency of 26GHz.

[0110] In an exemplary embodiment, Fig. 20 As shown in the figure, it is the far-field simulation result of the folded transmission array antenna feed in the x-polarization mode and the working frequency of 26GHz when the virtual sphere is concave toward the feed direction. At this time, the final emitted electromagnetic wave is a pencil-shaped beam with a narrow beam width. Fig.21 As shown, it is the far-field simulation result of the folded transmission array antenna feed in the y-polarization mode and the operating frequency of 26 GHz when the virtual sphere is a virtual sphere concave toward the feed direction. At this time, the final emitted electromagnetic wave is a flat-top beam with a wide beam width. theta represents the pitch angle, and phi represents the azimuth angle.

[0111] In an exemplary embodiment, Fig. 22 As shown, it is a schematic diagram of the structure of a reflective array antenna, which includes a reflective metasurface 500 and multiple feed sources 800 arranged in the same vertical direction. The reflective metasurface 500 includes multiple reflective units, and the multiple reflective units are arranged and formed using any of the above-mentioned beam control method embodiments, and the reflective metasurface 500 is arranged in the radiation direction of the feed source 800. The reflective metasurface 500 is a phase compensation array, and the reflective unit in the reflective metasurface 500 is a phase compensation unit. Among them, the feed source 800 is used to adjust through a beam width adjustment strategy, so that after the reflective metasurface 500 receives the electromagnetic wave generated by the feed source 800, the reflective unit in the reflective metasurface 500 adjusts the output beam width of the electromagnetic wave within the maximum output beam range, and radiates the output beam.

[0112] The structural schematic diagram of the transmission array antenna is the same as that of the reflection array antenna, except that the transmission array antenna includes a transmission metasurface, and a plurality of array-arranged transmission units in the transmission metasurface are arranged and formed by any of the above-mentioned beam control method embodiments, and the transmission metasurface is arranged in the radiation direction of the feed source 800. The transmission metasurface is a phase compensation array, and the transmission unit in the transmission metasurface is a phase compensation unit. The feed source 800 is used to adjust through a beam width adjustment strategy, so that after receiving the electromagnetic wave generated by the feed source 800, the transmission metasurface adjusts the output beam width of the electromagnetic wave within the maximum output beam range through the transmission unit in the transmission metasurface, and radiates the output beam.

[0113] like Fig.23As shown, it is a schematic diagram of the structure of the folded reflector array antenna, which includes a reflective surface 300, a transmission surface 400, and a plurality of feed sources 800 arranged in the same vertical direction. The transmission surface 400 includes a plurality of transmission units. The feed source 800 is integrated in the middle of the transmission surface 400. The plurality of reflection units in the reflective surface 300 are arranged and formed by any of the above-mentioned embodiments of the beam control method, and the reflective surface 300 is arranged in the radiation direction of the feed source 800 and is arranged parallel to and spaced from the transmission surface 400. The reflective surface 300 is a phase compensation array, and the reflection unit in the reflective surface 300 is a phase compensation unit. Among them, the feed source 800 is used to adjust through a beam width adjustment strategy, so that after the reflective surface 300 receives the electromagnetic wave generated by the feed source 800, the reflective unit in the reflective surface 300 adjusts the output beam width of the electromagnetic wave within the maximum output beam range through the reflection unit, and radiates the output beam.

[0114] The combination of any two of the folded transmission array antenna, the reflect array antenna, the transmission array antenna, and the folded reflect array antenna can be called a hybrid array antenna. The structural schematic diagram of the hybrid array antenna is the same as the structural schematic diagram of the folded reflect array antenna or the folded transmission array antenna. Among them, for the hybrid array antenna obtained by combining the folded reflect array antenna and the reflect array antenna, Fig.23 Taking the example of the phase compensation array, the reflective surface 300 is used for adjusting the beam width through the beam width adjustment strategy, so that after receiving the electromagnetic wave generated by the feed source 800, the reflective surface 300 adjusts the output beam width of the electromagnetic wave within the maximum output beam range through the reflective unit in the reflective surface 300, and radiates the output beam.

[0115] For the hybrid array antenna obtained by combining the folded transmission array antenna and the transmission array antenna, Figure 7 For example, the phase compensation array 900 is a phase compensation array. The feed source 800 is used to adjust the beam width through the beam width adjustment strategy, so that after receiving the electromagnetic wave generated by the feed source 800, the phase compensation array 900 adjusts the output beam width of the electromagnetic wave within the maximum output beam range through the transmission unit in the phase compensation array 900, and radiates the output beam.

[0116] For a hybrid array antenna obtained by combining a folded transmission array antenna with a folded reflection array antenna or a reflection array antenna, a hybrid array antenna obtained by combining a reflection array antenna with a transmission array antenna, or a hybrid array antenna obtained by combining a folded reflection array antenna with a transmission array antenna, its structural schematic diagram can be as follows: Fig.23As shown, the reflective surface 300 and the transmission surface 400 in the hybrid array antenna can both be used as phase compensation arrays. The multiple array-arranged reflective units in the reflective surface 300 and the multiple array-arranged transmission units in the transmission surface 400 are arranged and formed by any of the above-mentioned beam control method embodiments. The reflective surface 300 and the transmission surface 400 can operate at different frequencies, or respond to different polarizations of electromagnetic waves, that is, respond to different feeding ports, to achieve functions such as dual-frequency radiation and dual-polarization radiation. Exemplarily, the feed source 800 is used to adjust through a beam width adjustment strategy so that after the reflective surface 300 or the transmission surface 400 receives the electromagnetic wave generated by the feed source 800, the reflective unit in the reflective surface 300 or the transmission unit in the transmission surface 400 adjusts the output beam width of the electromagnetic wave within the maximum output beam range, and radiates the output beam. Further, the reflective surface 300 operates at a first frequency and is used to respond to the first feeding port, and the transmission surface 400 operates at a second frequency and is used to respond to the second feeding port.

[0117] In an exemplary embodiment, a communication device is provided. The communication device may be a server, and its internal structure diagram may be as shown in FIG. Fig.24 As shown. The computer device includes a processor, a memory, an input / output interface (Input / Output, referred to as I / O) and a communication interface. The memory includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The database of the computer device is used to store an expression of a virtual sphere, phase compensation data corresponding to the arrangement position of each phase compensation unit in a phase compensation array, etc. When the computer program is executed by the processor, a beam control method is implemented.

[0118] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the steps in the above-mentioned method embodiments are implemented.

[0119] In one embodiment, a computer program product is provided, including a computer program, which implements the steps in the above method embodiments when executed by a processor.

[0120] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of protection of the present application. For those of ordinary skill in the art, several variations and improvements may be made without departing from the concept of the present application, and these all belong to the scope of protection of the present application. Therefore, the scope of protection of the present application shall be subject to the attached claims.

Claims

1. A beam steering method, characterized in that: The method comprises: The phase compensation array of the antenna is converted into a virtual sphere according to a preset spherical center angle, and the phase compensation data corresponding to the arrangement position of each phase compensation unit in the phase compensation array is determined according to the distance from the feed source of the antenna to each virtual arrangement position in the virtual spherical surface; the preset spherical center angle corresponds to the maximum output beam width of the antenna, and the virtual arrangement position is the mapping position of the arrangement position of the phase compensation unit on the virtual spherical surface; Arranging phase compensation units in the phase compensation array according to phase compensation data corresponding to arrangement positions of a plurality of phase compensation units; The feed source is adjusted by a beam width adjustment strategy so that the phase compensation array adjusts the output beam width of the electromagnetic wave generated by the feed source under the limitation of the maximum output beam width and radiates the output beam.

2. The method according to claim 1, characterized in that Determining the phase compensation data corresponding to the arrangement position of each phase compensation unit in the phase compensation array according to the distance from the feed source of the antenna to each virtual arrangement position in the virtual sphere includes: Determine the distance from the feed source to each virtual arrangement position according to the position coordinates of the feed source in the antenna and the position coordinates of each virtual arrangement position in the virtual spherical surface; The phase compensation data corresponding to the arrangement position of each phase compensation unit is determined according to the distance from the feed source to each virtual arrangement position, the arrangement position of each phase compensation unit in the phase compensation array, the preset beam pointing and the wave number corresponding to the operating frequency.

3. The method according to claim 1, characterized in that The beam width adjustment strategy includes a position adjustment strategy; the step of adjusting the feed source by the beam width adjustment strategy so that the phase compensation array adjusts the output beam width of the electromagnetic wave generated by the feed source under the limitation of the maximum output beam width includes: The distance between the feed source and the phase compensation array is adjusted through a position adjustment strategy, so that the phase compensation array can adjust the output beam width of the electromagnetic wave generated by the feed source under the limitation of the maximum output beam width.

4. The method according to claim 3, characterized in that: The step of adjusting the distance between the feed source and the phase compensation array by a position adjustment strategy so that the phase compensation array adjusts the output beam width of the electromagnetic wave generated by the feed source under the limitation of the maximum output beam width comprises: In the case where there is only one feed source, the feed source is moved in a direction close to or away from the phase compensation array through a position adjustment strategy to adjust the distance between the feed source and the phase compensation array, so that the phase compensation array can adjust the output beam width of the electromagnetic wave generated by the feed source within the limit of the maximum output beam width.

5. The method according to claim 3, characterized in that: The step of adjusting the distance between the feed source and the phase compensation array by a position adjustment strategy so that the phase compensation array adjusts the output beam width of the electromagnetic wave generated by the feed source under the limitation of the maximum output beam width comprises: In the case where there are multiple feed sources, the distances between the multiple feed sources and the phase compensation array are different. Switching between the multiple feed sources is performed through a position adjustment strategy to adjust the distance between the feed sources and the phase compensation array, so that the phase compensation array can adjust the output beam width of the electromagnetic wave within the limit of the maximum output beam width.

6. The method according to claim 3, characterized in that The step of adjusting the distance between the feed source and the phase compensation array by a position adjustment strategy so that the phase compensation array adjusts the output beam width of the electromagnetic wave generated by the feed source under the limitation of the maximum output beam width comprises: In the case where the virtual spherical surface is a virtual spherical surface protruding toward the feed source, the distance between the feed source and the phase compensation array is reduced or increased through a position adjustment strategy, so that the phase compensation array reduces or increases the output beam width of the electromagnetic wave generated by the feed source under the limitation of the maximum output beam width; In the case where the virtual spherical surface is a virtual spherical surface that is concave toward the feed source, the distance between the feed source and the phase compensation array is reduced or increased through a position adjustment strategy so that the phase compensation array increases or decreases the output beam width of the electromagnetic wave generated by the feed source under the limitation of the maximum output beam width.

7. The method according to claim 1, characterized in that The feed source is a dual-polarization feed source; the beam width adjustment strategy includes a polarization switching strategy; the step of adjusting the feed source by the beam width adjustment strategy so that the phase compensation array adjusts the output beam width of the electromagnetic wave generated by the feed source under the limitation of the maximum output beam width includes: The feeding port of the feed source is switched through a polarization switching strategy to change the distance that the electromagnetic wave generated by the feed source radiates an outgoing beam through the phase compensation array, so that the phase compensation array switches the outgoing beam width of the electromagnetic wave.

8. The method according to claim 7, characterized in that The step of switching the feeding port of the feed source by a polarization switching strategy to change the distance traveled by the electromagnetic wave generated by the feed source through the phase compensation array to radiate the output beam, so that the phase compensation array switches the output beam width of the electromagnetic wave comprises: In the case where the virtual spherical surface is a virtual spherical surface protruding toward the feed source, the feed source is switched from the first feeding port to the second feeding port through a polarization switching strategy to reduce the distance that the electromagnetic wave generated by the feed source passes through the phase compensation array to radiate the output beam, so that the phase compensation array switches the output beam width of the electromagnetic wave to a narrow beam width; the feed source is switched from the second feeding port to the first feeding port through the polarization switching strategy to increase the distance that the electromagnetic wave generated by the feed source passes through the phase compensation array to radiate the output beam, so that the phase compensation array switches the output beam width of the electromagnetic wave to a wide beam width; In the case where the virtual spherical surface is a virtual spherical surface that is concave toward the feed source, the feed source is switched from the first feeding port to the second feeding port through a polarization switching strategy to reduce the distance that the electromagnetic wave generated by the feed source passes through the phase compensation array to radiate an output beam, so that the phase compensation array switches the output beam width of the electromagnetic wave to a wide beam width; the feed source is switched from the second feeding port to the first feeding port through the polarization switching strategy to increase the distance that the electromagnetic wave generated by the feed source passes through the phase compensation array to radiate an output beam, so that the phase compensation array switches the output beam width of the electromagnetic wave to a narrow beam width.

9. A folded transmission array antenna, characterized in that: The folded transmission array antenna comprises: a bottom metasurface including a plurality of reflective units; A feed source, integrated in the middle of the bottom metasurface; A phase compensation array, comprising a plurality of phase compensation units, wherein the plurality of phase compensation units are arranged and formed by the beam control method according to any one of claims 1 to 8, wherein the phase compensation array is arranged in the radiation direction of the feed source and is arranged parallel to and spaced from the bottom metasurface; The feed source is used to be adjusted through a beam width adjustment strategy so that the phase compensation array adjusts the output beam width of the electromagnetic wave generated by the feed source within the maximum output beam range and radiates the output beam.

10. The folded transmission array antenna according to claim 9, characterized in that: The beam width adjustment strategy includes a position adjustment strategy; the bottom metasurface is also used to adjust the distance between the bottom metasurface and the phase compensation array through the position adjustment strategy to adjust the distance between the feed source and the phase compensation array, so that the phase compensation array can adjust the output beam width of the electromagnetic wave generated by the feed source under the limitation of the maximum output beam width.

11. The folded transmission array antenna according to claim 9, characterized in that: The feed source is a dual-polarization feed source; the beam width adjustment strategy includes a polarization switching strategy; The feed source is also used to switch the feeding port of the feed source through a polarization switching strategy to change the distance that the electromagnetic wave generated by the feed source travels through the phase compensation array to radiate an output beam, so that the phase compensation array switches the output beam width of the electromagnetic wave.

12. A communication device, comprising a memory and a processor, wherein the memory stores a computer program, characterized in that: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 8 are implemented.

13. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 8 are implemented.

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