Dual-mode antenna device suitable for low-orbit satellites and high-orbit satellites
By designing a dual-mode antenna device including a two-antenna module, an active RF module, a two-position adjustment unit and a rotating unit, the flexibility and performance problems of traditional antenna systems when tracking satellites of different orbits are solved, and efficient communication for low-orbit and high-orbit satellites are achieved.
Patent Information
- Application Number
- CN202421917483.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2023-11-10
- Filing Date
- 2024-08-08
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-08-08
AI Technical Summary
Traditional antenna systems require tedious physical adjustments when tracking satellites in different orbits, which are difficult to meet high performance requirements and are costly to produce.
A dual-mode antenna device is designed, including a two-antenna module, an active RF module, a two-position adjustment unit and a rotary part. Through the coordinated work of the posture adjustment unit and the rotary part, flexible tracking of low-orbit and high-orbit satellites can be achieved, and efficient communication is achieved through a single transmission beamforming chip and a receiving beamforming chip.
It realizes flexible tracking of low-orbit and high-orbit satellites, reduces production costs, improves communication efficiency, and meets high-performance requirements.
Smart Images
Figure CN222980791U_ABST
Abstract
Description
Technical Field
[0001] This application relates to a dual-mode antenna device, and particularly to a dual-mode antenna device suitable for tracking low-earth orbit (LEO) satellites and geostationary orbit (GEO) satellites. Background Art
[0002] In modern communication technologies, antenna systems play a crucial role. They not only need to maintain stable communication connections in changing environments but also be able to adapt to different communication requirements and standards. However, traditional antenna systems face multiple challenges and problems.
[0003] First, for ground antenna systems, in order to maintain a communication connection with a selected satellite, its pointing beam needs to be able to quickly move from one satellite to another and continuously track its movement. This tracking action is crucial for ensuring continuous communication connections. However, when it comes to tracking and connecting satellites in different orbits, traditional antenna systems often require cumbersome physical adjustments, which are not flexible enough in rapidly changing communication environments, especially for low-earth orbit (LEO) satellites with high demand recently.
[0004] Second, with the development of communication technologies, the performance requirements for antenna systems are getting higher and higher. For example, in satellite communication, high effective isotropic radiated power (EIRP) and high gain-to-noise temperature ratio (G / T) have become important indicators for measuring antenna performance. However, in the case of simultaneously tracking LEO and GEO satellites, traditional antenna systems often struggle to meet the aforementioned high-performance requirements. Finally, although beamforming technology can improve the directivity and coverage of signals, as the number of antenna elements increases, a larger number of beamforming chips are often required, resulting in a significant increase in the overall production cost of the antenna system.
[0005] In summary, existing antenna systems have many problems and challenges in terms of flexibility, performance, and cost. The aforementioned problems limit their application and development in modern communication environments. Therefore, developing a new type of antenna system to solve these problems is an important topic of this application. Summary of the Utility Model
[0006] In order to stand out in the highly competitive market, the inventor, relying on years of rich practical experience in professional antenna design and adhering to the research spirit of excellence, finally developed a hybrid beam scanning antenna device of this application after long-term research and experiments, hoping to provide users with a better usage experience with the advent of this application.
[0007] The object of the present application is to provide a dual-mode antenna device applicable to low-earth orbit satellites and geostationary orbit satellites, including two antenna modules, an active radio frequency module, two posture adjustment parts, and a rotating part. Among them, each of the antenna modules can be arranged adjacent to each other along the horizontal axis or the vertical axis, and at least one transmitting beam or at least one receiving beam can be generated by one antenna surface of each of the antenna modules; the active radio frequency module is electrically connected to each of the antenna modules, and it at least includes a transmitting beamforming chip for transmission and a receiving beamforming chip for reception. Among them, the transmitting beamforming chip for transmission can enable each of the antenna modules to generate a transmitting beam for transmitting radio frequency signals; the receiving beamforming chip for reception can enable each of the antenna modules to generate a receiving beam for receiving external radio frequency signals; each of the posture adjustment parts is respectively connected to each of the antenna modules. Among them, the posture adjustment part can drive the antenna module to tilt, so that the transmitting beam or the receiving beam of the antenna surface can respectively form an angle with the vertical axis, and the angle can be more than 0 degrees to supplement the scanning ability of the antenna module in one-dimensional direction; the rotating part carries a plurality of the posture adjustment parts and can drive the plurality of the posture adjustment parts, so that the plurality of antenna surfaces of the plurality of antenna modules rotate around the vertical axis, thereby supplementing the scanning ability of the antenna module in the other one-dimensional direction. When the dual-mode antenna device is in the first mode, each of the posture adjustment parts can respectively drive the corresponding antenna module, so that each of the antenna modules can track a low-earth orbit satellite independently; when the dual-mode antenna device is in the second mode, each of the posture adjustment parts can synchronously drive each of the antenna modules, so that each of the antenna modules can jointly track the same geostationary orbit satellite. In this way, through the overall architecture of the dual-mode antenna device, it is possible to make each of the antenna modules operate independently or cooperatively according to the type of satellite to be tracked (such as low-earth orbit satellite, geostationary orbit satellite, etc.) with only a single transmitting beamforming chip for transmission and a receiving beamforming chip for reception, and optimize the communication efficiency.
[0008] Optionally, the posture adjustment part includes a support frame and a tilting motor device. Among them, one end of the support frame can be pivotally connected to the corresponding antenna module, and the tilting motor device is fixed to the support frame and can drive the corresponding antenna module to tilt.
[0009] Optionally, the rotating part includes a base and a rotating motor device. Among them, the base is used to carry the plurality of support frames of the plurality of posture adjustment parts, and the rotating motor device is fixed to the base and can drive the plurality of posture adjustment parts to rotate, thereby rotating the plurality of antenna modules.
[0010] Optionally, the rotating part rotates the plurality of antenna modules in a single direction of clockwise or counterclockwise, or rotates in an alternating manner of clockwise and counterclockwise.
[0011] Optionally, the antenna module is in the form of an array antenna.
[0012] Optionally, the antenna module includes at least one horizontally polarized antenna element and / or at least one vertically polarized antenna element.
[0013] Optionally, the active RF module further includes a plurality of power amplifiers, each of the power amplifiers is electrically connected to the transmission beamforming chip and each corresponding antenna module respectively. Each power amplifier can receive an active RF signal transmitted from the transmission beamforming chip, and after amplifying the active RF signal, transmit the amplified active RF signal to each corresponding antenna module, so that each antenna module generates a corresponding transmission beam.
[0014] Optionally, the active RF module further includes a plurality of low-noise amplifiers, each of the low-noise amplifiers is electrically connected to the receiving beamforming chip and each corresponding antenna module respectively. Each noise amplifier can receive an external RF signal transmitted from each antenna module, and after amplifying the external RF signal, transmit the amplified external RF signal to the receiving beamforming chip.
[0015] Optionally, the active RF module further includes an upconverter, a downconverter, a communication control module, and a microcontroller. The upconverter is electrically connected to the transmission beamforming chip; the downconverter is electrically connected to the receiving beamforming chip; the communication control module is electrically connected to the upconverter and the downconverter; the microcontroller is electrically connected to the communication control module, the transmission beamforming chip, the receiving beamforming chip, each of the posture adjustment parts, and the rotating part.
[0016] Optionally, the communication control module further includes a software-defined radio modulator-demodulator and an antenna control unit.
[0017] To further illustrate the purpose, technical features, and effects of the present application, specific embodiments are now given in conjunction with the accompanying drawings and described in detail as follows. However, the provided drawings are only for reference and illustration, and are not used to limit the present application. Description of the Drawings
[0018] To more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.
[0019] Figure 1 A perspective three-dimensional view of the dual-mode antenna device of the present application;
[0020] Figure 2 Another perspective three-dimensional view of the dual-mode antenna device of the present application;
[0021] Figure 3 The hardware architecture diagram of the dual-mode antenna device of the present application;
[0022] Figure 4 A schematic diagram of the state after the rotation part of the dual-mode antenna device of the present application rotates;
[0023] Figure 5 A three-dimensional schematic diagram of the dual-mode antenna device of the present application in the first mode;
[0024] Figure 6 A side view schematic diagram of the dual-mode antenna device of the present application in the first mode;
[0025] Figure 7 A three-dimensional schematic diagram of the dual-mode antenna device of the present application in the second mode; and
[0026] Figure 8 A side view schematic diagram of the dual-mode antenna device of the present application in the second mode. Detailed implementation manners
[0027] To make the objectives, technical solutions and advantages of the present application clearer and more understandable, the following further details the implementation manners of the present application regarding the "dual-mode antenna device applicable to low-earth orbit satellites and geostationary orbit satellites" in conjunction with specific implementation manners and with reference to the accompanying drawings. Those skilled in the art can understand the advantages and effects of the present application from the content disclosed in this specification. The present application can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of the present application. Additionally, it is stated in advance that the drawings of the present application are only simple schematic illustrations and are not drawn according to actual sizes. Although this document can provide examples including parameters with specific values, it should be understood that the parameters do not necessarily exactly equal the corresponding values, but can be approximated to the corresponding values within an acceptable error tolerance or design constraints. Furthermore, unless clearly indicated or defined in the context, the meanings of "a", "the", and "said" in the present application include plural forms.
[0028] It should be understood that although terms such as first and second may be used herein to describe various components or signals, each of the said components or signals should not be limited by the foregoing terms, which are mainly used to distinguish one component from another or one signal from another. Furthermore, the directional terms mentioned in the subsequent embodiments, such as "up", "down", "front", "back", "left", "right", etc., are only with reference to the directions in the drawings. Therefore, the directional terms used are for illustration and not for limiting the protection scope of this application. In addition, the term "or" used herein may, depending on the actual situation, include any one or a combination of more of the associated listed items.
[0029] Furthermore, terms such as "substantially" or "approximately" used herein may refer to a value within a deviation range for a certain specific value or the average value of a plurality of values that can be recognized or determined by those skilled in the art, including certain specific errors that may occur when measuring the specific value considering the limitations of the measurement system or device. For example, the value substantially mentioned can include ±5%, ±3%, ±1%, ±0.5%, ±0.1% of the specific value or a range of one or more standard deviations.
[0030] This application is a dual-mode antenna device applicable to low-earth orbit satellites and geostationary orbit satellites. For the convenience of description, the spatial form of this application is defined according to three mutually orthogonal axes, namely the horizontal axis (X-axis), the longitudinal axis (Y-axis), and the vertical axis (Z-axis). Please refer to Figures 1 to 3 As shown, the dual-mode antenna device A includes two antenna modules 1, an active radio frequency module 2, two posture adjustment parts 4, and a rotating part 5. Among them, each of the said antenna modules 1 is arranged adjacent to each other along the same axis (such as the horizontal axis (X-axis) or the longitudinal axis (Y-axis)), and each of the said antenna modules 1 can be electrically connected to the active radio frequency module 2 so that its antenna surface can respectively generate at least one beam (such as a transmitting beam, a receiving beam, etc.) to transmit radio frequency signals to the outside and receive external radio frequency signals. In some embodiments, the form of the antenna module 1 can be an array antenna and has the ability of electronic scanning. For example, when the array antenna adopts a one-dimensional layout, it can perform electronic scanning in the polar angle direction (theta, θ); when the array antenna adopts a two-dimensional layout, it can perform electronic scanning in the polar angle direction and the azimuth angle direction (phi, φ), but not limited thereto. In other embodiments of this application, the antenna module 1 can adopt other antenna forms as long as it is sufficient to generate a beam in a predetermined direction.
[0031] Continuing from the above, please refer to again Figures 1 to 3As shown, according to actual requirements, the antenna module 1 can include at least one horizontally polarized antenna element 11 and at least one vertically polarized antenna element 12. Among them, the antenna element 11 is used to receive and transmit horizontally polarized electromagnetic waves, and the antenna element 12 is used to receive and transmit vertically polarized electromagnetic waves. By combining the above polarization methods, the antenna module 1 can more flexibly cope with different communication requirements and environmental conditions. Also, since the antenna elements 11 and 12 can be electrically connected to the transmission beamforming chip 21 and the receiving beamforming chip 22 in the active radio frequency module 2, therefore, the transmission beamforming chip 21 and the receiving beamforming chip 22 can precisely control the direction and shape of the radiation beams emitted and received by the antenna elements 11 and 12. In addition, the transmission beamforming chip 21 and the receiving beamforming chip 22 can also dynamically adjust the polarization mode of the antenna module 1 (such as: linear polarization, circular polarization, elliptical polarization, etc.) according to the signal quality and strength received by the antenna module 1, so as to maximize communication efficiency and reliability. However, in other embodiments of the present application, the antenna module 1 can only have a horizontally polarized antenna element 11, or only have a vertically polarized antenna element 12, or antenna elements of other polarization types, so that the dual-mode antenna device A can adapt to the changing communication environment.
[0032] The architecture of the active radio frequency module 2 will be described below, but not limited thereto. According to actual product requirements, the electronic components and even the connection relationships included in the active radio frequency module 2 can be adjusted and changed, as long as the active radio frequency module 2 at least includes the transmission beamforming chip 21 and the receiving beamforming chip 22, and can make each of the antenna modules 1 generate the required beams. Also, please refer to Figures 1 to 3 As shown, the transmission beamforming chip 21 and the receiving beamforming chip 22 respectively control the phase and amplitude of the antenna elements 11 and 12 in each of the antenna modules 1 to form or optimize the beam in a specific direction. Specifically, the transmission beamforming chip 21 can generate an active radio frequency signal and transmit it to the corresponding antenna module 1, and then control and adjust the phase and amplitude of each of the antenna elements 11 and 12 in the antenna module 1, so that the antenna module 1 can form a transmission beam pointing in a specific direction; the receiving beamforming chip 22 can receive external radio frequency signals from each of the antenna modules 1, and by controlling and adjusting the phase and amplitude of the antenna elements 11 and 12 in the antenna module 1, enhance the signal in a specific direction, suppress interference, and improve the overall reception quality of the signal, thereby optimizing the reception ability of the external radio frequency signal.
[0033] Continuing from the above, please refer to Figures 1 to 3As shown, in this embodiment, the active RF module 2 further includes a plurality of power amplifiers (Power Amplifier) 23 and a plurality of low-noise amplifiers (Low-noise Amplifier) 24. Among them, the power amplifier 23 can be electrically connected to the transmission beamforming chip 21 and the antenna elements 11 and 12 in the corresponding antenna module 1. It can receive the active RF signal transmitted from the transmission beamforming chip 21 and can amplify the power of the active RF signal. Also, the power amplifier 23 can transmit the amplified active RF signal to the corresponding antenna module 1 so that the antenna module 1 can generate a corresponding transmission beam. Also, the low-noise amplifier 24 can be electrically connected to the receiving beamforming chip 22 and the antenna elements 11 and 12 in the corresponding antenna module 1. It can receive the external RF signal transmitted from each of the antenna modules 1 and can amplify the external RF signal to a sufficient power level without significantly increasing the noise of the external RF signal to improve the signal-to-noise ratio, and then transmit the amplified external RF signal to the receiving beamforming chip 22.
[0034] However, please refer to again Figures 1 to 3As shown, according to the actual requirements of the product, in addition to adjusting the number and installation positions of the power amplifier 23 and the low-noise amplifier 24, in some embodiments, the active radio frequency module 2 can further include an up converter 25, a down converter 26, a communication control module 27, and a microcontroller (abbreviated as MCU) 28. Among them, the up converter 25 is electrically connected to the transmit beamforming chip 21 and can up-convert an intermediate frequency (IF) signal to a radio frequency signal; the down converter 26 is electrically connected to the receive beamforming chip 22 and can down-convert a radio frequency signal to an intermediate frequency signal; the communication control module 27 is electrically connected to the up converter 25 and the down converter 26 respectively, and it can further include a software defined radio modem (abbreviated as SDR Modem) and an antenna control unit (abbreviated as ACU). For example, components such as AD9361 and Zynq7000 can be used to support different communication protocols and frequency bands, and control the direction and positioning of the antenna module 1; the microcontroller 28 can be electrically connected to the communication control module 27, the transmit beamforming chip 21, the receive beamforming chip 22, the posture adjustment unit 4, and the rotation unit 5. It can control the specific actions of the plurality of posture adjustment units 4 and the rotation unit 5 according to the control instructions of the communication control module 27 to achieve precise positioning and direction adjustment of the antenna module 1, and control the polarization state and power state of the antenna module 1, but not limited thereto.
[0035] Furthermore, please refer to Figures 1 to 3 As shown, in this embodiment, the posture adjustment unit 4 can be connected to the corresponding antenna module 1. Among them, one end of the posture adjustment unit 4 can be connected to the antenna module 1 and can drive the antenna module 1 to tilt, so that the beam (transmit beam or receive beam) generated by the antenna surface can form an angle with the vertical axis (Z axis), and the angle can be more than 0 degrees to supplement the scanning ability of the antenna module 1 in one dimension (such as the polar angle direction), and thus can locate and track the target satellite. Specifically, the posture adjustment unit 4 includes a support frame 41 and a tilt motor device 43. Among them, one end (such as Figure 2 the top) of the support frame 41 can be pivotally connected to the antenna module 1. The tilt motor device 43 is fixed to the support frame 41, which is electrically connected to the microcontroller 28 and can drive the antenna module 1 to tilt according to the instructions of the microcontroller 28. Also, each posture adjustment unit 4 can independently drive the corresponding antenna module 1. Therefore, the tilt directions and angles of each antenna module 1 can be different or the same.
[0036] Please refer to again Figures 1 to 3 As shown, in this embodiment, the rotating part 5 can carry a plurality of the posture adjusting parts 4 and drive the plurality of the posture adjusting parts 4 to rotate, so that the antenna surfaces of the plurality of the antenna modules 1 can rotate around the vertical axis (Z-axis). According to actual requirements, the rotating part 5 can make the plurality of the antenna modules 1 rotate only in the clockwise direction, or only in the counterclockwise direction, or can rotate alternately in the clockwise and counterclockwise directions to supplement the scanning ability of the antenna module 1 in another dimension (such as the azimuth direction). Specifically, the rotating part 5 includes a base body 51 and a rotating motor device 53. Among them, the top surface of the base body 51 can be connected to the other end (such as Figure 2 the bottom end) of the support frames 41 of the plurality of the posture adjusting parts 4. The rotating motor device 53 is fixed to the base body 51, is electrically connected to the microcontroller 28, and can drive the base body 51 to rotate 360 degrees around its own axis in the XY plane according to the instruction of the microcontroller 28, and then synchronously drive the plurality of the posture adjusting parts 4 to rotate. At this time, the antenna modules 1 on the plurality of the posture adjusting parts 4 will rotate accordingly (such as Figure 5 shown).
[0037] Continuing from the above, please refer to again Figures 1 to 3 As shown, the base body 51 can rotate around the driving shaft of the rotating motor device 53. When the extending position of the driving shaft is between two antenna modules 1, the antenna surface of each of the antenna modules 1 will revolve around the extending position of the driving shaft; when the extending position of the driving shaft passes through one of the antenna modules 1, the antenna surface of the aforementioned penetrated antenna module 1 will rotate around the extending position of the driving shaft, and the antenna surface of the other non-penetrated antenna module 1 will revolve around the extending position of the driving shaft. Therefore, as long as the rotating part 5 is sufficient to drive the antenna surfaces of the plurality of the antenna modules 1 to rotate around the vertical axis (Z-axis) (including rotation or revolution), it is the rotating part 5 referred to in this application.
[0038] Please refer to again Figures 1 to 3As shown, when the dual-mode antenna device A needs to be applied to satellites in different orbits, for example, geostationary orbit (GEO) satellites or low Earth orbit (LEO) satellites, since satellites in various orbits have their specific characteristics. For example, for a GEO satellite relative to the antenna system on the Earth's surface, it is almost stationary. Therefore, the antenna system hardly needs to track the satellite, and its main requirements are high effective isotropic radiated power (EIPR(TX)) for transmission and high gain-to-noise temperature ratio (G / T(RX)) for reception. For an LEO satellite, due to its high speed, fast tracking is required, but the EIPR(TX) and G / T(RX) it needs are lower. Therefore, the dual-mode antenna device A of the present application can be switched to at least a first mode and a second mode.
[0039] The following describes the process of the dual-mode antenna device A tracking the LEO satellites S1 and S2 and the GEO satellite S3. Please refer to Figures 1 to 6 As shown, when the dual-mode antenna device A is in the first mode dedicated to tracking LEO satellites, each posture adjustment unit 4 can independently control the corresponding antenna module 1. For example, an antenna module 1 can be driven by its corresponding posture adjustment unit 4 to accurately track and connect to a specific LEO satellite S1. During this period, the transmission beamforming chip 21 and the reception beamforming chip 22 will specifically transmit active RF signals and external RF signals with the aforementioned antenna module 1. At the same time, another antenna module 1 can remain stationary or be controlled by another posture adjustment unit 4 to search for and prepare to connect to the next upcoming LEO satellite S2. In the aforementioned case, the transmission beamforming chip 21 and the reception beamforming chip 22 will not exchange active RF signals and external RF signals with another antenna module 1.
[0040] Continuing from the above, please refer to Figures 1 to 3 、 Figures 7 to 8As shown, when the dual-mode antenna device A is in the second mode dedicated to tracking the geostationary satellite S3, its respective posture adjustment units 4 will work together, enabling the two antenna modules 1 to be aligned and operated in cooperation, and achieving beam synthesis through precise control of phase and amplitude, thereby simulating a larger antenna module 1. In the foregoing case, the transmission beamforming chip 21 and the reception beamforming chip 22 will specifically exchange active RF signals and external RF signals with the plurality of antenna modules 1, enabling the plurality of antenna modules 1 to jointly track the same geostationary satellite S3. Moreover, the foregoing cooperative operation enables the plurality of antenna modules 1 to jointly form a transmission beam with high EIPR and a reception beam with high G / T, so as to improve the strength of the signals transmitted by the dual-mode antenna device A and the sensitivity of the received signals, thereby ensuring that the dual-mode antenna device A can achieve good communication as expected with the geostationary satellite.
[0041] It can be seen therefrom that, please refer again to Figures 1 to 3 As shown, through the dual-mode antenna device A of the present application, only a single transmission beamforming chip 21 and a single reception beamforming chip 22 are required to achieve tracking of low-earth orbit satellites and geostationary satellites, which can not only reduce the overall production cost, but also reduce the complexity of the circuit design. In addition, by the functions of the posture adjustment unit 4 and the rotation unit 5, the dual-mode antenna device A can achieve the effect of mechanical tracking, and further control the antenna module 1 to optimize the communication performance.
[0042] The above is only the preferred and feasible embodiment of the present application, and does not limit the protection scope of the claims of the present application. Therefore, all equivalent changes that can be thought of by those skilled in the art without creative labor based on the technical content disclosed in the present application should be included in the protection scope of the claims of the present application.
Claims
1. A dual-mode antenna device suitable for low-orbit satellites and high-orbit satellites, characterized in that: The dual-mode antenna device comprises: Two antenna modules are arranged adjacent to each other along the horizontal axis or the vertical axis, and an antenna surface of each antenna module can generate at least one transmitting beam or at least one receiving beam respectively; an active radio frequency module, electrically connected to each of the antenna modules, comprising at least a transmission beamforming chip and a reception beamforming chip, wherein the transmission beamforming chip enables each of the antenna modules to generate each of the transmission beams for transmitting radio frequency signals; and the reception beamforming chip enables each of the antenna modules to generate each of the reception beams for receiving external radio frequency signals; two posture adjustment parts, connected to each of the antenna modules respectively, wherein the posture adjustment parts can drive the antenna modules to tilt so that the transmitting beam or the receiving beam of the antenna surface can form an angle with the vertical axis respectively, and the angle can be greater than 0 degrees to supplement the scanning capability of the antenna module in one-dimensional direction; and A rotating part carries the plurality of posture adjustment parts and can drive the plurality of posture adjustment parts so that the plurality of antenna surfaces of the plurality of antenna modules rotate around the vertical axis, thereby supplementing the scanning capability of the antenna module in another dimension. When the dual-mode antenna device is in the first mode, each posture adjustment part can respectively drive the corresponding antenna module so that each antenna module can track a low-orbit satellite respectively; when the dual-mode antenna device is in the second mode, each posture adjustment part can synchronously drive each antenna module so that each antenna module can jointly track the same high-orbit satellite.
2. The dual-mode antenna device according to claim 1, characterized in that: The posture adjustment unit includes a support frame and a tilting motor device, wherein one end of the support frame can be pivotally connected to the corresponding antenna module, and the tilting motor device is fixed to the support frame and can drive the corresponding antenna module to tilt.
3. The dual-mode antenna device according to claim 2, characterized in that: The rotating part includes a seat and a rotating motor device, wherein the seat is used to carry multiple supporting frames of multiple posture adjustment parts, and the rotating motor device is fixed to the seat and can drive the multiple posture adjustment parts to rotate, thereby rotating the multiple antenna modules.
4. The dual-mode antenna device according to claim 3, characterized in that: The rotating unit causes the plurality of antenna modules to rotate in a single direction of a clockwise direction or a counterclockwise direction, or to rotate in a staggered manner in the clockwise direction and the counterclockwise direction.
5. The dual-mode antenna device according to any one of claims 1 to 4, characterized in that: The antenna module is in the form of an array antenna.
6. The dual-mode antenna device according to claim 5, characterized in that: The antenna module includes at least one horizontally polarized antenna unit and / or at least one vertically polarized antenna unit.
7. The dual-mode antenna device according to any one of claims 1 to 4, characterized in that: The active RF module also includes multiple power amplifiers, each of which is electrically connected to the transmission beamforming chip and each corresponding antenna module. Each power amplifier can receive an active RF signal from the transmission beamforming chip, amplify the active RF signal, and then transmit the amplified active RF signal to each corresponding antenna module, so that each antenna module generates a corresponding transmission beam.
8. The dual-mode antenna device according to claim 7, characterized in that: The active RF module also includes a plurality of low-noise amplifiers, each of which is electrically connected to the receiving beamforming chip and each corresponding antenna module. Each of the low-noise amplifiers can receive an external RF signal transmitted from each antenna module, amplify the external RF signal, and then transmit the amplified external RF signal to the receiving beamforming chip.
9. The dual-mode antenna device according to claim 8, characterized in that: The active radio frequency module also includes: an uplink converter electrically connected to the transmission beamforming chip; a downlink converter electrically connected to the receiving beamforming chip; a communication control module, electrically connected to the uplink converter and the downlink converter; and A microcontroller is electrically connected to the communication control module, the transmission beamforming chip, the reception beamforming chip, each of the posture adjustment units and the rotation unit.
10. The dual-mode antenna device according to claim 9, characterized in that: The communication control module further includes a software defined radio modem and an antenna control unit.