Antenna system, control method of antenna system, device, and storage medium

Abstract

The application discloses an antenna system, a control method of the antenna system, equipment and a storage medium, and belongs to the technical field of communication. The antenna system comprises an NTN array and a plurality of high-frequency array antennas, and the plurality of high-frequency array antennas are installed at edge positions of the NTN array; wherein the NTN array is used for realizing satellite-ground coverage communication, and each high-frequency array antenna in the plurality of high-frequency array antennas supports multi-type function mode switching and array group array configuration. Through the architecture of the center NTN array matched with the edge distributed high-frequency array antenna, the multiple requirements of communication coverage, beam regulation, in-orbit networking and space detection are considered, the disadvantages of the fixed beam pointing of the traditional satellite-borne high-frequency antenna and the poor in-orbit adjustability are improved, the complex dynamic in-orbit task can be adapted, and the communication blind area is eliminated.

Description

Technical Field

[0001] This application relates to the field of communication technology, and in particular to an antenna system, a control method for the antenna system, an apparatus, and a storage medium. Background Technology

[0002] With the rapid development of non-terrestrial network (NTN) technology, spaceborne high-frequency antennas, as the core payload of satellite communication systems, undertake key tasks such as high-speed satellite-to-ground communication, inter-satellite networking, and on-orbit telemetry and control. Their beam control capability, power adaptation capability, functional integration, and on-orbit adaptive performance directly determine the coverage, transmission capacity, and on-orbit service effectiveness of satellite communication systems.

[0003] However, the traditional high-frequency antennas used in current mainstream satellite communication systems are mostly fixed-beam reflector antennas, fixed array antennas, etc. Due to limitations in hardware architecture, control mechanisms and integrated design, they have exposed many inherent technical defects in complex space on-orbit scenarios, dynamic networking missions and multi-scenario adaptation requirements, making it difficult to meet the application requirements of next-generation intelligent, multi-tasking, and highly adaptable spaceborne communication. Summary of the Invention

[0004] This application provides an antenna system, a control method for the antenna system, a device, and a storage medium, which can solve the problems of fixed beam pointing and poor on-orbit adjustability of traditional spaceborne high-frequency antennas. The technical solution is as follows: In a first aspect, an antenna system is provided, which includes an NTN array and multiple high-frequency array antennas. The multiple high-frequency array antennas are independent active phased array subarrays. The multiple high-frequency array antennas are separately installed at the edge of the NTN array, and the multiple high-frequency array antennas are not co-located with the NTN array. The NTN array is used to achieve satellite-to-ground coverage communication. Each of the multiple high-frequency array antennas supports multiple types of functional mode switching and array group configuration. The functional mode and array group configuration of each high-frequency array antenna are adaptively switched according to the satellite's real-time on-orbit mission.

[0005] As an example of this application, the NTN array is a rectangular array, and at least two high-frequency array antennas are installed on the outer edges of each of the four sides of the NTN array. Alternatively, the NTN array may be a circular or elliptical array, and at least two high-frequency array antennas may be mounted on the outer edges of the NTN array in multiple directions.

[0006] As an example of this application, each of the multiple high-frequency array antennas is mounted on an NTN phased array antenna platform at the edge of the NTN array. The spatial arrangement attitude between different high-frequency array antennas can be adjusted, and the multiple high-frequency array antennas can work independently or collaboratively.

[0007] As an example of this application, each of the multiple high-frequency array antennas is a one-dimensional or two-dimensional active phased array. The two-dimensional active phased array supports independent electronically controlled scanning of the beam in the elevation and azimuth directions, while the one-dimensional active phased array supports electronically controlled scanning of the beam in a single direction in the elevation or azimuth direction.

[0008] As an example of this application, each of the multiple high-frequency array antennas corresponds to one or more functional modes, and each high-frequency array antenna operates in a different frequency band under different functional modes. The multiple functional modes include feed link mode, inter-satellite link mode, user link mode, space situational awareness mode and remote control link mode. Specifically, in the power supply link mode, it is used for high-speed data backhaul between the satellite and the ground gateway station; in the inter-satellite link mode, it is used for networking and interconnection between satellite nodes; in the user link mode, it is used for access of high-frequency user terminals; in the space situation awareness mode, it is used for space situation awareness; and in the remote control link mode, it is used for receiving remote control commands and transmitting telemetry data from the ground telemetry and control station.

[0009] As an example of this application, multiple high-frequency array antennas include multiple array configurations, including parallel configuration mode and vertical configuration mode. Both parallel configuration mode and vertical configuration mode indicate the relative spatial arrangement attitude between different high-frequency array antennas. In the parallel configuration mode, the array surface of the high-frequency array antenna is spatially parallel to the array surface of the NTN array. The beam pointing of the high-frequency array antenna in the parallel configuration mode is configured to be the same to achieve power superposition enhancement and long-distance communication, or to be configured differently to independently perform different functional links. In the vertical configuration mode, the array surface of the high-frequency array antenna is spatially perpendicular to the array surface of the NTN array. The beam pointing of the high-frequency array antenna in the vertical configuration mode is determined according to the current mission requirements to achieve multi-dimensional beam coverage and multi-link parallel communication.

[0010] Secondly, a control method for an antenna system is provided, for controlling the antenna system described in the first aspect above, the method comprising: Based on the current mission requirements, determine the target functional mode of the target high-frequency array antenna. The target high-frequency array antenna is a high-frequency array antenna at any azimuth edge among multiple high-frequency array antennas. Adjust the spatial arrangement and beam direction of the target high-frequency array antenna according to the target functional mode.

[0011] As an example of this application, the operation of adjusting the spatial arrangement attitude and beam direction of the target high-frequency array antenna according to the target functional mode includes: Determine the array configuration of the target high-frequency array antenna based on the target functional mode; Based on the array configuration, the spatial arrangement attitude of the target high-frequency array antenna is adjusted so that the array surface of the high-frequency array antenna in the vertical configuration mode is spatially perpendicular to the array surface of the NTN array, and the array surface of the high-frequency array antenna in the parallel configuration mode is spatially parallel to the array surface of the NTN array. The beam direction is adjusted by one-dimensional or two-dimensional active phased array electronically controlled scanning.

[0012] Thirdly, a control device for an antenna system is provided, the device comprising: The determination module is used to determine the target functional mode of the target high-frequency array antenna based on the current task requirements. The target high-frequency array antenna is a high-frequency array antenna at any azimuth edge among multiple high-frequency array antennas. The adjustment module is used to adjust the spatial arrangement attitude and beam direction of the target high-frequency array antenna according to the target functional mode.

[0013] As an example in this application, the adjustment module is used for: Determine the array configuration of the target high-frequency array antenna based on the target functional mode; Based on the array configuration, the spatial arrangement attitude of the target high-frequency array antenna is adjusted so that the array surface of the high-frequency array antenna in the vertical configuration mode is spatially perpendicular to the array surface of the NTN array, and the array surface of the high-frequency array antenna in the parallel configuration mode is spatially parallel to the array surface of the NTN array. The beam direction is adjusted by one-dimensional or two-dimensional active phased array electronically controlled scanning.

[0014] Fourthly, a computer-readable storage medium is provided, wherein a computer program is stored therein, and when executed by a processor, the computer program implements any of the methods described in the second aspect above.

[0015] Fifthly, a device is provided, which can be a network device, such as a satellite or spaceborne communication device, the device comprising: processor; Memory used to store processor-executable instructions; Any of the antenna systems provided in the first aspect above; The processor is configured to perform the steps of any of the methods provided in the second aspect above.

[0016] In a sixth aspect, a computer program product containing instructions is provided, which, when run on a computer, causes the computer to perform the steps of any of the methods provided in the second aspect above.

[0017] It is understood that the beneficial effects of the second to sixth aspects mentioned above can be found in the relevant descriptions in the first aspect mentioned above, and will not be repeated here.

[0018] The beneficial effects of the technical solutions provided in this application are: In this embodiment, the architecture of a central NTN array paired with edge-distributed high-frequency array antennas addresses multiple needs, including communication coverage, beam control, on-orbit networking, and space exploration. This improves upon the shortcomings of traditional spaceborne high-frequency antennas, such as fixed beam pointing and poor on-orbit adjustability, and allows for adaptation to complex and dynamic on-orbit missions. Secondly, since the array configuration includes parallel and vertical configuration modes, and the two modes can be switched, bidirectional dynamic reconfiguration of antenna radiation power and spatial coverage is achieved. This overcomes the deficiencies of traditional antennas, such as fixed power and insufficient adaptability to extreme space communication scenarios, and improves the stability of space-to-ground and inter-satellite communication links. Furthermore, the multi-directional edge array layout enhances the flexibility and reliability of NTN networking. In addition, the independent configuration and collaborative operation of multiple high-frequency array antennas integrates on-orbit services such as space-to-ground access, inter-satellite networking, data backhaul, space situational awareness, and remote control and telemetry. A single hardware payload enables integrated operation of multiple services, solving the problems of fragmented functions and lack of intelligent control in traditional spaceborne antennas, and maximizing the reuse of hardware, beam, and spectrum resources. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the architecture of an antenna system according to an exemplary embodiment.

[0021] Figure 2 This is a schematic diagram illustrating a vertical array pattern according to another exemplary embodiment.

[0022] Figure 3 This is a schematic diagram illustrating a communication scenario according to another exemplary embodiment.

[0023] Figure 4 This is a flowchart illustrating a control method for an antenna system according to an exemplary embodiment.

[0024] Figure 5 This is a schematic diagram of the structure of a control device for an antenna system according to an exemplary embodiment.

[0025] Figure 6 This is a schematic diagram of the structure of a device according to an exemplary embodiment. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0027] It should be understood that "multiple" as mentioned in this application refers to two or more. In the description of this application, unless otherwise stated, " / " indicates "or," for example, A / B can mean A or B; "and / or" in this document is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Furthermore, to facilitate a clear description of the technical solutions of this application, the terms "first," "second," etc., are used to distinguish identical or similar items with essentially the same function and effect. Those skilled in the art will understand that the terms "first," "second," etc., do not limit the quantity or execution order, and that "first," "second," etc., do not necessarily imply differences.

[0028] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0029] First, a brief introduction to the application scenarios of this application will be given.

[0030] Currently, the traditional high-frequency antennas used in mainstream satellite communication systems are mostly fixed-beam reflector antennas and fixed array antennas. Due to limitations in hardware architecture, control mechanisms, and integrated design, these antennas exhibit many inherent technical defects under complex on-orbit scenarios, dynamic networking missions, and multi-scenario adaptation requirements. These defects mainly include the following issues: First, traditional high-frequency antennas mostly adopt preset beam pointing and fixed radiation parameters. During on-orbit operation, the beam shape, pointing, and coverage cannot be dynamically adjusted in real time according to changes in ground communication missions, satellite attitude disturbances, and changes in the space transmission environment. They can only achieve communication coverage in fixed areas and fixed modes. When facing diverse on-orbit mission requirements such as all-domain mobile communication, regional enhanced coverage, and blind spot filling for sudden missions, their adaptability is seriously insufficient. They are prone to problems such as communication blind spots, insufficient signal gain, and poor link stability, which greatly limits the mission adaptability and space coverage flexibility of satellite communication systems.

[0031] Secondly, traditional antennas are mostly designed with independent fixed radiating elements and lack a modular array collaborative control mechanism. They cannot achieve dynamic superposition enhancement of radiated power through multi-element collaborative arraying, making it difficult to cope with high-loss scenarios such as long-distance communication and weak signal transmission. At the same time, they cannot achieve physical separation and dynamic allocation of transmit and receive channels and radiated power, resulting in poor power utilization flexibility and weak link guarantee capability in extreme space communication scenarios.

[0032] Furthermore, current satellite networking exhibits a trend towards multi-orbit, heterogeneous, and dynamic topology development, with dynamic switching between low-Earth orbit, medium-Earth orbit, and high-Earth orbit satellites becoming the norm. However, traditional high-frequency antennas have fixed beam coverage, radiation angles, and communication parameters, making them unable to adapt to the dynamic link establishment requirements between satellites at different orbital altitudes and relative positions. This hinders the rapid completion of inter-satellite beam alignment, link switching, and network reconstruction. When the topology changes dynamically, problems such as link interruptions, large network delays, and low communication reliability easily occur, making it impossible to support the high-speed, dynamic, and large-scale inter-satellite networking communication requirements.

[0033] Furthermore, traditional antennas only possess basic communication transmission functions and lack integrated intelligent functions such as space situational awareness, dynamic task switching, and attitude adaptive optimization. During on-orbit operation, they cannot detect space obstacles and interference sources in real time and perform beam avoidance, resulting in poor on-orbit operational safety and anti-interference capabilities. Simultaneously, they cannot achieve real-time dynamic task switching and adaptive beam parameter optimization based on remaining on-orbit energy, task priority, and attitude deviation status, leading to energy waste, delayed task adaptation, and low tolerance for attitude disturbances. Overall, their on-orbit intelligent adaptability and comprehensive service performance are poor.

[0034] Finally, in traditional satellite platforms, functions such as wide-coverage communication, high-speed private network communication, inter-satellite networking, and on-orbit telemetry and control all rely on independent antenna equipment and hardware modules. Each functional device is independent of the others, with high hardware redundancy, occupying a large amount of satellite payload installation space and energy resources. The degree of equipment integration and unification is low. Multi-service scenarios cannot achieve the reuse and sharing of hardware resources, beam resources, and power resources, resulting in serious waste of satellite payload resources. The overall resource utilization rate and on-orbit comprehensive efficiency are low, making it difficult to adapt to the design requirements of the next generation of satellite payloads that are miniaturized, lightweight, multifunctional, and intelligent.

[0035] Based on this scenario, this application provides an antenna system and a control method for the antenna system. The antenna system employs a hierarchical architecture of NTN arrays and edge high-frequency array antennas. It utilizes a central NTN array to achieve wide-area satellite-to-ground coverage, and multiple high-frequency array antennas arranged at the edges of the NTN array enable multi-mode switching and dynamic array reconfiguration. This solves the technical shortcomings of traditional spaceborne high-frequency antennas, such as fixed beams, lack of power reconfiguration capability, poor network adaptability, limited functionality, and low equipment integration. It achieves integrated satellite-to-ground communication, inter-satellite networking, telemetry and control backhaul, and space situational awareness, significantly improving the utilization rate of satellite on-orbit resources and intelligent adaptability.

[0036] The antenna system provided in the embodiments of this application will be explained in detail below.

[0037] See Figure 1 This application provides an antenna system that includes an NTN array 1 and multiple high-frequency array antennas 2, with the multiple high-frequency array antennas 2 mounted at the edge of the NTN array 1.

[0038] Among them, the NTN array 1 is used to realize satellite-to-ground coverage communication, and each of the multiple high-frequency array antennas 2 supports multiple types of functional mode switching and array group configuration.

[0039] It should be noted that the NTN array, as the main radiating array, can be used to achieve wide-area, large-scale satellite-to-ground communication coverage, ensuring the satellite's basic communication coverage capability and meeting the needs of conventional user terminal access and wide-area signal coverage. The high-frequency array antennas arranged at the edge are functional extension arrays, capable of independently switching between multiple functional modes. They also support dynamic array configuration, allowing for flexible switching of operating functions and beam configurations according to on-orbit mission requirements, achieving dynamic mission adaptation and performance optimization. In other words, this embodiment adds multiple high-frequency array antennas 2 to the edge of the NTN array, and each of these multiple high-frequency array antennas 2 can be flexibly configured, thereby enabling each high-frequency array antenna to support multiple functional modes.

[0040] It is worth noting that by combining the NTN array with the edge high-frequency array antenna, the limitations of traditional antenna functions being fixed and beam positions being fixed are broken. By replacing multiple independent antenna devices with integrated hardware, the integration of spaceborne equipment is greatly improved, and the space and energy consumption of the payload are reduced.

[0041] In some embodiments, the NTN array supports multiple array shape layouts to adapt to the installation requirements of different satellite platforms. For example, the NTN array can be a rectangular array, a circular array, or an elliptical array. Depending on the different NTN array shape layouts, the arrangement positions of multiple high-frequency array antennas are also adjusted accordingly.

[0042] See Figure 1 In the case of a rectangular NTN array 1, at least two high-frequency array antennas 2 are installed on the outer edges of each of the four sides of the NTN array 1. The multiple high-frequency array antennas 2 on the edges of the NTN array can be used independently or in combination.

[0043] As an example, at least two high-frequency array antennas located on the same edge of an NTN array can be arranged either adjacently or spaced apart (i.e., spaced at a predetermined distance from each other). Figure 1 As shown, on the same edge, some high-frequency array antennas are arranged close together, while others are arranged at intervals (in the case of interval arrangement, if there are no other devices between two high-frequency array antennas, the two high-frequency array antennas can also be considered as adjacent).

[0044] It is worth noting that when the NTN array is a rectangular uniform planar array, the rectangular array has a standard four-sided regular structure, with at least two high-frequency array antennas arranged on the outer edges of each of the four sides of the NTN array. The four sides of the rectangular array are regular straight-line boundaries, which enables the uniform and symmetrical arrangement of high-frequency array antennas, resulting in a regular beam coverage area. It is compatible with conventional rectangular satellite payload mounting surfaces, facilitating mechanical installation, beam calibration, and on-orbit calibration. The high-frequency array with its four sides distributed arrangement can achieve full-circumferential functional reinforcement without any coverage dead zones.

[0045] As an example, the NTN array can also be a circular array or an elliptical array, with at least two high-frequency array antennas mounted on the outer edges of the NTN array in multiple directions.

[0046] As an example, when the NTN array is a circular array or an elliptical array, the multiple orientations of the NTN array can be the orientations of multiple sides of the circumscribed polygon of the NTN array, for example, the orientations of the four sides of the circumscribed rectangle of the NTN array. At least two high-frequency array antennas are installed on the outer edges of the multiple orientations of the NTN array; that is, at least two high-frequency array antennas are installed on the curved surface boundaries of the NTN array corresponding to the multiple sides of the circumscribed polygon.

[0047] It is worth noting that when the NTN array is a circular or elliptical array, since circular and elliptical arrays have no structural edges, the beam scanning symmetry is stronger, which can be adapted to satellite curved surface mounting platforms and irregularly shaped payload mounting spaces, and can be adapted to high dynamic inter-satellite networking and omnidirectional space situational awareness scenarios.

[0048] Of course, the NTN array may also be an array of other shapes. In the case of arrays of other shapes, multiple high-frequency array antennas can also be installed on the outer edge of the NTN array. This application will not describe them one by one in the embodiments.

[0049] In some embodiments, each of the multiple high-frequency array antennas is mounted on an NTN phased array antenna platform located at the edge of the NTN array. This mounting platform is part of the NTN array. The relative spatial arrangement of different high-frequency array antennas can be adjusted, thereby adjusting the array grouping relationship between the arrays (i.e., the array grouping configuration is adjustable). The multiple high-frequency array antennas can work independently or collaboratively.

[0050] It should be noted that this NTN phased array antenna platform is used to mount high-frequency array antennas, and this NTN phased array antenna platform can also be referred to as a coplanar mounting substrate.

[0051] It is worth noting that by making the spatial arrangement of different high-frequency array antennas adjustable, the relative spatial relationship of the high-frequency array antennas can be flexibly configured according to the needs of on-orbit missions, thereby adapting to different coverage scenarios and link pointing requirements. At the same time, multiple high-frequency array antennas support independent or collaborative operation. They can be configured independently to execute different on-orbit services, achieving multi-task parallel processing; or they can work collaboratively to achieve beam pointing matching and power superposition enhancement, improving long-distance transmission capabilities and link reliability.

[0052] In some embodiments, each of the multiple high-frequency array antennas is a one-dimensional or two-dimensional active phased array. The two-dimensional active phased array supports independent electronically controlled scanning of the beam in the elevation and azimuth directions, while the one-dimensional active phased array supports electronically controlled scanning of the beam in a single direction in the elevation or azimuth direction.

[0053] It should be noted that active phased arrays can achieve electrically controlled beam deflection in the spatial dimension by adjusting the phase and amplitude of each array element without mechanical rotation. One-dimensional phased arrays can achieve single-dimensional beam scanning, meeting the needs of conventional directional communication and telemetry links; two-dimensional phased arrays can simultaneously complete flexible scanning of azimuth and elevation beams, adapting to dynamic networking, rapid beam alignment, and multi-area coverage scenarios.

[0054] It is worth noting that each high-frequency array antenna, employing a two-dimensional active phased array structure, possesses independent electronically controlled scanning capabilities, enabling independent beam control in both elevation and azimuth dimensions. Furthermore, the edge high-frequency array antennas can dynamically adjust their spatial deployment attitude in real time, overcoming the shortcomings of traditional antennas such as fixed beam positions, poor on-orbit adjustability, and inability to adapt to dynamic tasks, thus significantly improving the antenna's on-orbit dynamic adaptability.

[0055] It should be noted that each high-frequency array antenna can be configured with a variety of differentiated functional modes. Different functional modes correspond to different operating frequency bands and operating mechanisms, realizing the integrated integration of multiple service functions.

[0056] As an example, each of the multiple high-frequency array antennas corresponds to one or more functional modes, and each high-frequency array antenna operates in a different frequency band under different functional modes. The multiple functional modes include feed link mode, inter-satellite link mode, user link mode, space situational awareness mode, and remote control link mode.

[0057] As an example, in feed link mode, the high-frequency array antenna is used for high-speed data backhaul between the satellite and the ground gateway station. Specifically, in feed link mode, the high-frequency array antenna primarily enables high-capacity, high-speed data backhaul between the satellite and the ground gateway station, undertaking downlink transmission tasks for satellite on-orbit service data, payload monitoring data, and mission log data, thus meeting the requirements for high-speed data backhaul. In feed link mode, the high-frequency array antenna operates in a dedicated high-speed backhaul frequency band, such as the K-band, Ka-band, or Ku-band.

[0058] As an example, high-frequency array antennas in inter-satellite link mode are used for networking and interconnection between satellite nodes. Specifically, in inter-satellite link mode, high-frequency array antennas enable dynamic networking and interconnection between satellites in different orbits and at different nodes. This allows for rapid inter-satellite beam alignment, link establishment, and data exchange, adapting to scenarios with dynamically changing satellite topologies and solving the problems of weak adaptability and unstable links in traditional antenna inter-satellite networking. In inter-satellite link mode, the high-frequency array antenna operates in a dedicated frequency band for inter-satellite networking, such as the Ku band, K band, Ka band, or V band.

[0059] As an example, high-frequency array antennas are used for high-frequency user terminal access in user link mode. That is, in user link mode, the high-frequency array antenna, in conjunction with the wide coverage capability of the central NTN array, enables access communication for ground-based high-frequency user terminals in remote areas, oceans, and airspace, enhancing communication gain in edge areas and improving overall communication coverage quality and system capacity. In user link mode, the high-frequency array antenna operates in the user access communication frequency band, such as the Ku band, K band, or Ka band.

[0060] As an example, high-frequency array antennas are used for space situational awareness in space situational awareness mode. That is, high-frequency array antennas possess space situational awareness capabilities in space situational awareness mode, monitoring the surrounding space environment in real time through high-frequency beam scanning, thereby improving the safety of satellite operation in orbit. In space situational awareness mode, the high-frequency array antenna operates in a space sensing detection frequency band, such as the Ku band, K band, Ka band, or W band.

[0061] As an example, in remote control link mode, the high-frequency array antenna is used for receiving remote control commands and transmitting telemetry data from the ground control station. In this mode, the high-frequency array antenna can receive remote control commands from the ground control station and simultaneously transmit satellite telemetry status data back, ensuring the stability and reliability of the on-orbit control link and enabling full-process ground control of the satellite. In remote control link mode, the high-frequency array antenna operates in a dedicated control frequency band, such as the Ku, K, or Ka band.

[0062] It is worth noting that by configuring and cooperating multiple arrays independently, hardware reuse and frequency band differentiation can be achieved, which improves the technical defects of traditional satellites, such as the independence of various functional devices, low integration, and waste of resources.

[0063] In some embodiments, the multiple high-frequency array antennas include various array configurations; wherein, the multiple array configurations include a parallel configuration mode and a vertical configuration mode, both of which refer to the relative spatial arrangement of different high-frequency array antennas. In the parallel configuration mode, the high-frequency array antennas are arranged parallel to each other in space, and their outward beam pointing can be adjusted to coincide, achieving power superposition enhancement and long-distance communication. They can also maintain parallel arrangement, split beam pointing, and perform independent communication services such as feed transmission and inter-satellite networking. In the vertical configuration mode, the high-frequency array antennas are arranged perpendicular to the NTN array in space, used to achieve multi-dimensional beam coverage and multi-link parallel communication.

[0064] It should be noted that the beam pointing of the high-frequency array antennas in parallel configuration mode remains consistent. Multiple array beams are spatially superimposed and power combined to improve the overall radiated power and equivalent radiated power (EIRP). For long-distance communication, weak signal transmission, and high-loss space link scenarios, power superposition compensates for space transmission loss, improves link stability and communication distance, and enables dynamic on-orbit power reconfiguration.

[0065] It should also be noted that the high-frequency array antenna in vertical configuration mode has its array surface perpendicular to that of the NTN array, and the beam direction is determined by the current mission requirements. It can simultaneously achieve multi-directional and multi-region parallel beam coverage, support parallel operation of multiple links such as satellite-to-ground communication, inter-satellite networking, and telemetry and sensing, greatly improve the parallel operation capability and spatial coverage of the antenna system, and adapt to multi-task parallel on-orbit scenarios.

[0066] It should be noted that, in order to ensure the balance of the device housing the NTN array, the multiple high-frequency array antennas are typically symmetrically distributed at the edges of the NTN array; however, they can also be asymmetrically distributed. For example, when the multiple high-frequency array antennas are not symmetrically distributed, the array configuration of the multiple high-frequency array antennas can be adjusted accordingly to balance the device housing the NTN array.

[0067] In some embodiments, to ensure the balance of the device (such as a satellite) housing the NTN array, the array configuration of the multiple high-frequency array antennas is typically adjusted accordingly. For example, see [link to relevant documentation]. Figure 2 High-frequency array antennas A1 and A2 are perpendicular to each other, with the array surface of high-frequency array antenna A1 perpendicular to the array surface of the NTN array, and the array surface of high-frequency array antenna A2 parallel to the array surface of the NTN array. High-frequency array antennas A3 and A4, diagonally opposite to high-frequency array antennas A1 and A2, are also arranged in a vertical configuration, with the array surface of high-frequency array antenna A4 perpendicular to the array surface of the NTN array, and the array surface of high-frequency array antenna A3 parallel to the array surface of the NTN array.

[0068] For example, satellite P1 includes an NTN array and multiple high-frequency array antennas, and the array configuration of the multiple high-frequency array antennas can be as follows: Figure 2 As shown, in this case, see Figure 3 Satellite P1 can establish a feed link with the ground gateway station via high-frequency array antennas (such as high-frequency array antennas A2 and A3) with their array surfaces parallel to the NTN array, or conduct telemetry and control communication with the ground telemetry and control station, or establish a communication link with the high-frequency user terminal, or be used as a space sensing radar to improve the satellite's security; and can also connect with other satellites (such as...) via high-frequency array antennas (such as high-frequency array antennas A1 and A4) with their array surfaces perpendicular to the NTN array. Figure 3It can establish a communication connection with satellite P2 to realize inter-satellite network data forwarding, form an inter-satellite transmission link to form a starlink, and can also be used as a lateral space sensing radar system between satellite and NTN array antenna to improve the space security of satellite.

[0069] It is worth noting that multiple high-frequency array antennas support dynamic array configuration, and can switch between parallel configuration mode and vertical configuration mode according to mission requirements, thereby realizing power reconfiguration and coverage reconfiguration, solving the problems of traditional antennas having no power reconfiguration capability and a single coverage mode from the hardware level.

[0070] This application also provides a control method adapted to the above-described antenna system, enabling intelligent adaptive adjustment of antenna function and beam. The control method for the antenna system provided in this application will be explained below. (See also...) Figure 4 This method is applied to network devices, which can be satellites or devices within satellites (such as processors, chips, or chip systems). The method includes the following steps: Step 401: Determine the target functional mode of the target high-frequency array antenna based on the current mission requirements.

[0071] It should be noted that the target high-frequency array antenna is a high-frequency array antenna at any azimuth edge among multiple high-frequency array antennas.

[0072] Because multiple high-frequency array antennas are installed around the edge of the NTN array, due to installation layout constraints, all high-frequency array antennas deployed around the NTN array are simultaneously powered on and ready for use, but not all of them participate in a single on-orbit mission. That is, some high-frequency array antennas need to be used to meet the current mission requirements, while others do not need to be used in the current mission requirements. The high-frequency array antennas used to meet the current mission requirements are identified as the target high-frequency array antennas.

[0073] As an example, during satellite operation, network equipment can identify the current on-orbit mission requirements in real time, and determine the target high-frequency array antenna to be controlled and its corresponding target functional mode based on one or more of the following: mission type, mission priority, communication link status, space environment status, satellite orbital attitude, and available operating frequency bands.

[0074] It should be noted that each individual task requirement uniquely matches one type of functional mode. Currently, there may be multiple task requirements, in which case multiple task requirements will match multiple types of functional modes. For example, if the current task is a high-capacity satellite-to-ground data downlink backhaul task, the target functional mode will include the feeder link mode; if the current task is a task involving dynamic networking of satellites in different orbits and inter-satellite data interaction, the target functional mode will include the inter-satellite link mode; if the current task is a task involving ground-distributed terminals and airspace terminal access communication, the target functional mode will include the user link mode; if the current task is a task involving space debris monitoring and space situational awareness, the target functional mode will include the space situational awareness mode; and if the current task is a task involving ground uplink command reception and satellite telemetry status backhaul, the target functional mode will include the remote control link mode.

[0075] As an example, during satellite operation, network equipment can collect on-orbit operating conditions and analyze current mission requirements in real time. These current mission requirements include, but are not limited to, satellite-to-ground data transmission missions, inter-satellite networking communication missions, ground user access missions, space situational awareness missions, and on-orbit remote control and telemetry missions.

[0076] In some embodiments, the network device can screen all edge high-frequency array antennas based on task spatial orientation, operating frequency band requirements, and beam coverage angle: High-frequency array antennas that match the task spatial orientation, meet frequency band requirements, and achieve beam visibility standards are identified as target high-frequency array antennas. Alternatively, high-frequency array antennas that cannot cover the task area, have frequency band conflicts, or are subject to beam obstruction are identified as idle high-frequency array antennas, which do not participate in the execution of the current task requirements; the high-frequency array antennas other than the idle ones are identified as target high-frequency array antennas. Alternatively, the high-frequency array antennas other than the idle ones are identified, and the high-frequency array antenna to be called is selected from these identified antennas and designated as the target high-frequency array antenna.

[0077] Currently, network devices can also identify target high-frequency array antennas through other means.

[0078] It should be noted that there is no limit to the number of target high-frequency array antennas for a single mission. It can be a single high-frequency array antenna or multiple high-frequency array antennas deployed on the same edge or different edges. Multiple high-frequency array antennas located on the same edge of the NTN array can be selected individually or collaboratively as target high-frequency array antennas, regardless of whether they are arranged in close proximity or at a preset distance.

[0079] For example, when a satellite passes over a communication airspace in low Earth orbit, the satellite identifies a task with a high demand for access from a remote ground terminal, determines the task to be of the highest priority, and selects a high-frequency array antenna located on the ground-facing edge of the NTN array as the target high-frequency array antenna, and simultaneously binds it to the user link mode. If space debris is detected ahead of the orbit during on-orbit synchronous monitoring, a high-frequency array antenna on the lateral edge is additionally selected as a new target high-frequency array antenna, and the space situational awareness mode is activated in parallel to realize the multi-antenna distributed collaborative control task.

[0080] Step 402: Adjust the spatial arrangement attitude and beam direction of the target high-frequency array antenna according to the target functional mode.

[0081] In some embodiments, the operation of adjusting the spatial arrangement attitude and beam direction of the target high-frequency array antenna according to the target functional mode includes: determining the array configuration of the target high-frequency array antenna according to the target functional mode; adjusting the spatial arrangement attitude of the target high-frequency array antenna according to the array configuration, so that the array surface of the high-frequency array antenna in the vertical configuration mode is spatially perpendicular to the array surface of the NTN array, and the array surface of the high-frequency array antenna in the parallel configuration mode is spatially parallel to the array surface of the NTN array, and scanning is performed by one-dimensional or two-dimensional active phased array electronic control.

[0082] As an example, the network device determines the array configuration of the target high-frequency array antenna according to the target functional mode, including: matching the parallel configuration mode for long-distance high-speed communication and weak link protection tasks; and matching the vertical configuration mode for multi-task parallel, multi-area coverage, and satellite-to-ground-to-satellite collaborative communication tasks to achieve multi-dimensional beam coverage.

[0083] As an example, if the target functional mode includes the power supply link mode, it can be determined that the array configuration includes the parallel configuration mode.

[0084] Since the feed link primarily handles high-capacity data transmission between the satellite and the ground gateway station, with long communication distances and high transmission path losses, it places high demands on the antenna's transmit EIRP (Electronic Intensity Reduction Ratio). There is no requirement for multi-directional beam concurrency; therefore, the array configuration can be determined to include a parallel configuration mode. In this case, the RF phase, beam elevation angle, and azimuth angle of the first part of the target high-frequency array antenna can be uniformly calibrated to ensure complete beam pointing of the first part of the high-frequency array antenna. This allows for beam superposition to achieve radiated power synthesis, increasing the overall equivalent radiated EIRP, compensating for long-distance transmission losses, and ensuring the signal-to-noise ratio of the high-speed backhaul link. This first part of the high-frequency array antenna is the high-frequency array antenna in the target high-frequency array antenna with a parallel configuration mode.

[0085] As an example, if the target functional mode includes inter-satellite link mode, it can be determined that the array configuration includes vertical configuration mode.

[0086] For example, a high-speed inter-satellite link is established with a neighboring satellite. The target high-frequency array antenna includes high-frequency array antenna A and high-frequency array antenna B. The network device determines that the current array configuration is in vertical configuration mode. In this case, high-frequency array antenna A is used to transmit signals and high-frequency array antenna B is used to receive signals, thereby achieving high-speed data transmission and reception and improving throughput.

[0087] Of course, in some cases, the array configuration can be determined to include parallel configuration mode and / or vertical configuration mode. In conventional heterogeneous satellite networking scenarios, the inter-satellite transmission links are long and the spatial attenuation is large. The vertical configuration mode is preferred. Multiple vertically configured arrays are parallel to each other, and the beams are superimposed in the same direction to enhance communication gain and realize long-distance inter-satellite communication.

[0088] As an example, when the target functional mode includes the user link mode, it can be determined that the array configuration includes a parallel configuration mode. For instance, ground user terminals are scattered and their coverage is dispersed, with a need for parallel access in multiple areas. There is no requirement for ultra-high EIRP power for ground communication, but there is a strong need for beam isolation and wide-area segmented coverage. The network equipment directly calls the parallel configuration mode and configures the high-frequency array antennas in the parallel configuration mode with different beam directions to cover different areas on the ground, thereby achieving segmented wide-area access, while avoiding self-interference from multiple beams to the ground and improving the overall user access capacity.

[0089] As an example, when the target functional mode includes a space situational awareness mode, it can be determined that the array configuration includes a vertical configuration mode. In space situational awareness mode, network devices need to complete the tasks of forward orbit detection and lateral airspace scanning. A single beam cannot achieve full-domain space monitoring. The network devices can split the detection beam dimension by using the vertical configuration mode of the second part of the high-frequency array antenna in the target high-frequency array antenna. One beam detects obstacles in the forward orbit along the satellite's flight path, while the other beam scans the surrounding space environment laterally, achieving full-dimensional airspace situational awareness while balancing detection accuracy and scanning range. This second part of the high-frequency array antenna is the high-frequency array antenna in the target high-frequency array antenna with the array configuration set to vertical configuration mode.

[0090] For example, when the target functional mode includes a space situational awareness mode, multiple high-frequency array antennas installed on the edge of the NTN array (rectangular array) are combined to control the array surface of at least one high-frequency array antenna on each side to be perpendicular to the NTN array array surface, and to make the radiating surface of the at least one high-frequency array antenna perpendicular to the NTN array array surface. At the same time, the array surface of at least one other high-frequency array antenna on each side is controlled to be parallel to the NTN array array surface, and the radiating surface of the at least one other high-frequency array antenna is parallel to the NTN array array surface. By using bidirectional orthogonal beams in the vertical and parallel directions, a global detection beam is synthesized to form a radar signal coverage range greater than the hemispherical airspace, eliminating orbital lateral and rearward detection blind spots, realizing full-space space debris monitoring, and enhancing the satellite's on-orbit survivability.

[0091] As an example, when the target functional mode includes the remote control link mode, it can be determined that the array configuration includes a parallel configuration mode. Conventional on-orbit remote control and telemetry missions require separate uplink remote control beams and downlink telemetry beams. The parallel configuration mode allows one part of the high-frequency array antennas to receive signals while the other part transmits signals, ensuring the reliability of telemetry and control command transmission. Furthermore, if there are telemetry and control blind spots or telemetry and control link attenuation during satellite transit, the beam radiation power can be aggregated to enhance the telemetry and control link gain, ensuring reliable command transmission and reception under extreme conditions.

[0092] It should be noted that since the target functional mode may include multiple functional modes at the same time, in this case, the target high-frequency array antenna can realize multiple functions.

[0093] For example, when the target functional modes include inter-satellite link mode and feed link mode, at least one high-frequency array antenna operates in feed link mode for service data transmission between the satellite and the ground gateway station; at least one other high-frequency array antenna operates in inter-satellite link mode to complete neighboring satellite beam handshake and data interaction; multiple satellites equipped with this antenna system interact to form a network, relying on the distributed edge high-frequency array to achieve inter-satellite beam collaborative coverage, build a space-based regional communication network, fill the coverage blind spots of low-orbit satellites, and improve the NTN network capacity.

[0094] For example, when the target functional modes include feeder link mode and user link mode, at least one high-frequency array antenna operates in feeder link mode for service data transmission between the satellite and the ground gateway station; at least one other high-frequency array antenna operates in user link mode, oriented towards the ground terminal and the airspace terminal, to establish an end-to-end D2D high-speed direct link, eliminating the ground base station forwarding link, compressing transmission delay, and realizing high-speed communication between the satellite and the ground.

[0095] In some embodiments, network devices can perform beam electrical control through the two-dimensional active phased array phase shifting component and amplitude modulation component of the target high-frequency array antenna. Of course, under some operating conditions, for a high-frequency array antenna configured as a one-dimensional active phased array, single-dimensional beam electrical control can also be achieved through the one-dimensional active phased array phase shifting component.

[0096] As an example, when the array is configured in a parallel configuration mode, the spatial arrangement of the target high-frequency array antenna is adjusted so that its array surface is parallel to that of the NTN array in space. The target high-frequency array antenna is controlled to have the same phase offset and the azimuth and elevation scanning angles are aligned to cancel the beam phase difference caused by the antenna installation spacing and achieve beam superposition in the same direction.

[0097] It is worth noting that, based on the matched array configuration, the network equipment uses the one-dimensional or two-dimensional active phased array electronically controlled scanning capability of the high-frequency array antenna to adaptively and with high precision adjust the beam pointing, beam coverage, and radiation parameters of the target high-frequency array antenna, thereby completing on-orbit dynamic control and achieving real-time matching between mission requirements and antenna operating status.

[0098] In this embodiment, the architecture of a central NTN array paired with edge-distributed high-frequency array antennas addresses multiple needs, including communication coverage, beam control, on-orbit networking, and space exploration. This improves upon the shortcomings of traditional spaceborne high-frequency antennas, such as fixed beam pointing and poor on-orbit adjustability, enabling adaptation to complex and dynamic on-orbit missions and eliminating communication blind spots. Secondly, since the array configuration includes parallel and vertical configuration modes, and the two modes can be switched, bidirectional dynamic reconfiguration of antenna radiation power and spatial coverage is achieved. This overcomes the deficiencies of traditional antennas, such as fixed power and insufficient adaptability to extreme space communication scenarios, thus improving the stability of space-to-ground and inter-satellite communication links. Furthermore, the multi-directional edge array layout enhances the flexibility and reliability of NTN networking. In addition, the independent configuration and collaborative operation of multiple high-frequency array antennas integrates on-orbit services such as space-to-ground access, inter-satellite networking, data backhaul, space situational awareness, and remote control and telemetry. A single hardware payload enables integrated operation of multiple services, solving the problems of fragmented functions and lack of intelligent control in traditional spaceborne antennas, and maximizing the reuse of hardware, beam, and spectrum resources.

[0099] It should be understood that the sequence number of each step in the above embodiments does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0100] All of the above-mentioned optional technical solutions can be combined in any way to form optional embodiments of this application, and the embodiments of this application will not be described in detail one by one.

[0101] After explaining the control method of the antenna system provided in the embodiments of this application, the control device of the antenna system provided in the embodiments of this application will be introduced next.

[0102] Figure 5 This is a schematic diagram illustrating the structure of a control device for an antenna system according to an exemplary embodiment. The device can be implemented by software, hardware, or a combination of both. The control device for the antenna system includes a determining module 501 and an adjusting module 502.

[0103] The determination module 501 is used to determine the target functional mode of the target high-frequency array antenna according to the current task requirements. The target high-frequency array antenna is a high-frequency array antenna at any azimuth edge among multiple high-frequency array antennas. The target functional mode includes one or more functional modes corresponding to each high-frequency array antenna. The adjustment module 502 is used to adjust the spatial arrangement attitude and beam direction of the target high-frequency array antenna according to the target functional mode.

[0104] As an example of this application, adjustment module 502 is used for: Determine the array configuration of the target high-frequency array antenna based on the target functional mode; Based on the array configuration, the spatial arrangement attitude of the target high-frequency array antenna is adjusted so that the array surface of the high-frequency array antenna in the vertical configuration mode is spatially perpendicular to the array surface of the NTN array, and the array surface of the high-frequency array antenna in the parallel configuration mode is spatially parallel to the array surface of the NTN array. The beam direction is adjusted by one-dimensional or two-dimensional active phased array electronically controlled scanning.

[0105] In this embodiment, the architecture of a central NTN array paired with edge-distributed high-frequency array antennas addresses multiple needs, including communication coverage, beam control, on-orbit networking, and space exploration. This improves upon the shortcomings of traditional spaceborne high-frequency antennas, such as fixed beam pointing and poor on-orbit adjustability, enabling adaptation to complex and dynamic on-orbit missions and eliminating communication blind spots. Secondly, since the array configuration includes parallel and vertical configuration modes, and the two modes can be switched, bidirectional dynamic reconfiguration of antenna radiation power and spatial coverage is achieved. This overcomes the deficiencies of traditional antennas, such as fixed power and insufficient adaptability to extreme space communication scenarios, thus improving the stability of space-to-ground and inter-satellite communication links. Furthermore, the multi-directional edge array layout enhances the flexibility and reliability of NTN networking. In addition, the independent configuration and collaborative operation of multiple high-frequency array antennas integrates on-orbit services such as space-to-ground access, inter-satellite networking, data backhaul, space situational awareness, and remote control and telemetry. A single hardware payload enables integrated operation of multiple services, solving the problems of fragmented functions and lack of intelligent control in traditional spaceborne antennas, and maximizing the reuse of hardware, beam, and spectrum resources.

[0106] It should be noted that the communication device provided in the above embodiments is only illustrated by the division of the above functional modules. In practical applications, the above functions can be assigned to different functional modules as needed. That is, the internal structure of the terminal equipment (including high-orbit satellites, ground control stations, and / or low-orbit satellites) can be divided into different functional modules to complete all or part of the functions described above. In addition, the communication device and communication method embodiments provided in the above embodiments belong to the same concept, and their specific implementation process can be found in the method embodiments, which will not be repeated here.

[0107] Figure 6 This is a schematic diagram of the structure of a device provided in one embodiment of this application. Figure 6 As shown, the device 600 of this embodiment includes: at least one processor 61 ( Figure 6 (Only one is shown in the diagram), memory 62, and computer program 63 stored in said memory 62 and executable on said at least one processor 61, which, when executed by said processor 61, implements the steps in any of the above method embodiments.

[0108] The device 600 may be a high-orbit satellite, a medium-orbit satellite, and / or a low-orbit satellite. This device may include, but is not limited to, a processor 61 and a memory 62. Those skilled in the art will understand that... Figure 6 This is merely an example of device 600 and does not constitute a limitation on device 600. It may include more or fewer components than shown in the figure, or combine certain components, or different components. For example, it may also include input / output devices, network access devices, etc.

[0109] The processor 61 can be a CPU (Central Processing Unit), but it can also be other general-purpose processors, DSPs (Digital Signal Processors), ASICs (Application Specific Integrated Circuits), FPGAs (Field-Programmable Gate Arrays), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor or any conventional processor.

[0110] In some embodiments, the memory 62 may be an internal storage unit of the device 600, such as a hard disk or memory of the device 600. In other embodiments, the memory 62 may be an external storage device of the device 600, such as a plug-in hard disk, SMC (Smart Media Card), SD (Secure Digital) card, flash card, etc., equipped on the device 600. Furthermore, the memory 62 may include both internal and external storage units of the device 600. The memory 62 is used to store the operating system, applications, bootloader, data, and other programs, such as the program code of the computer program. The memory 62 can also be used to temporarily store data that has been output or will be output.

[0111] It should be noted that the information interaction and execution process between the above-mentioned devices / units are based on the same concept as the method embodiments of this application. For details on their specific functions and technical effects, please refer to the method embodiments section, and they will not be repeated here.

[0112] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional units and modules is merely an example. In practical applications, the above functions can be assigned to different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above. The functional units and modules in the embodiments can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit. Furthermore, the specific names of the functional units and modules are only for easy differentiation and are not intended to limit the scope of protection of this application. The specific working process of the units and modules in the above system can be referred to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0113] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be included within the protection scope of this application.

Claims

1. An antenna system, characterized in that, The antenna system includes a non-terrestrial network (NTN) array and multiple high-frequency array antennas. The multiple high-frequency array antennas are independent active phased array subarrays, and the multiple high-frequency array antennas are separately installed at the edge of the NTN array. The multiple high-frequency array antennas do not share the same array surface with the NTN array. The NTN array is used to realize satellite-to-ground coverage communication. Each of the multiple high-frequency array antennas supports multiple types of functional mode switching and array configuration. The functional mode and array configuration of each high-frequency array antenna are adaptively switched according to the satellite's real-time on-orbit mission. The various functional modes include power supply link mode, inter-satellite link mode, user link mode, space situational awareness mode, and remote control link mode. The plurality of high-frequency array antennas include a parallel configuration mode and a vertical configuration mode. In the parallel configuration mode, the array surface of the high-frequency array antenna is spatially parallel to the array surface of the NTN array, and in the vertical configuration mode, the array surface of the high-frequency array antenna is spatially perpendicular to the array surface of the NTN array.

2. The system as described in claim 1, characterized in that, The NTN array is a rectangular array, and at least two high-frequency array antennas are installed on the outer edges of each of the four sides of the NTN array. Alternatively, the NTN array may be a circular or elliptical array, and at least two high-frequency array antennas may be mounted on the outer edges of the NTN array in multiple directions.

3. The system as described in claim 1, characterized in that, Each of the multiple high-frequency array antennas is mounted on an NTN phased array antenna platform at the edge of the NTN array. The spatial arrangement of the different high-frequency array antennas can be adjusted. The multiple high-frequency array antennas can work independently or collaboratively.

4. The system as described in claim 1, characterized in that, Each of the multiple high-frequency array antennas is a one-dimensional or two-dimensional active phased array. The two-dimensional active phased array supports independent electronically controlled scanning of the beam in the elevation and azimuth directions, while the one-dimensional active phased array supports electronically controlled scanning of the beam in a single direction in either the elevation or azimuth direction.

5. The system as described in any one of claims 1-4, characterized in that, Each of the plurality of high-frequency array antennas corresponds to one or more functional modes, and each high-frequency array antenna operates in a different frequency band under different functional modes; Specifically, in the power supply link mode, it is used for high-speed data backhaul between the satellite and the ground gateway station; in the inter-satellite link mode, it is used for networking and interconnection between satellite nodes; in the user link mode, it is used for access of high-frequency user terminals; in the space situation awareness mode, it is used for space situation awareness; and in the remote control link mode, it is used for receiving remote control commands and transmitting telemetry data from the ground telemetry and control station.

6. The system as described in any one of claims 1-4, characterized in that, In the parallel configuration mode, the beam pointing of the high-frequency array antenna is configured to be the same to achieve power superposition enhancement and long-distance communication, or to be configured differently to independently perform different functional links; in the vertical configuration mode, the beam pointing of the high-frequency array antenna is determined according to the current task requirements to achieve beam coverage with different spatial directions and multi-link parallel communication.

7. A control method for an antenna system, characterized in that, The method for controlling the antenna system according to any one of claims 1-6, the method comprising: Based on the current mission requirements, the target functional mode of the target high-frequency array antenna is determined. The target high-frequency array antenna is a high-frequency array antenna at any azimuth edge among multiple high-frequency array antennas. The target functional mode includes one or more functional modes corresponding to each high-frequency array antenna. According to the target functional mode, adjust the spatial arrangement attitude and beam direction of the target high-frequency array antenna.

8. The method as described in claim 7, characterized in that, The step of adjusting the spatial arrangement attitude and beam direction of the target high-frequency array antenna according to the target functional mode includes: Based on the target functional mode, determine the array configuration of the target high-frequency array antenna; According to the array configuration, the spatial arrangement attitude of the target high-frequency array antenna is adjusted so that the array surface of the high-frequency array antenna in the vertical configuration mode is spatially perpendicular to the array surface of the NTN array, and the array surface of the high-frequency array antenna in the parallel configuration mode is spatially parallel to the array surface of the NTN array. The beam direction is adjusted by one-dimensional or two-dimensional active phased array electronically controlled scanning.

9. A spaceborne communication device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, The spaceborne communication device further includes the antenna system of any one of claims 1-6, wherein the processor implements the method of claim 7 or 8 when executing the computer program.

10. A computer-readable storage medium storing instructions thereon, characterized in that, When the instructions are executed by the processor, they implement the method of claim 7 or 8.

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