Satellite ground antenna array electric module, antenna array system and antenna device

Abstract

This application relates to the technical field of satellite ground antennas, and more particularly to a satellite ground antenna array electrical module, antenna array system, and antenna device. This application achieves spatial separation of the transmitting and receiving antennas by mounting the transmitting array antenna group above the antenna assembly bracket and the receiving array antenna below the antenna mainboard. The transmitting array antenna group includes multiple transmitting array antennas, each with non-parallel transmitting surfaces arranged at a preset angle, facilitating control of the transmission direction and improving the efficiency of satellite signal transmission.

Description

Technical Field

[0001] This utility model relates to the technical field of satellite ground antennas, specifically to a satellite ground antenna array electrical module, antenna array system, and antenna device. Background Technology

[0002] With the increasing demand for communication across various sectors, networking has become an indispensable part. However, many areas around the world, such as remote mountainous regions, sea areas, and airplanes, still lack stable network access, and traditional communication methods are insufficient to meet their requirements for high mobility and wide coverage. Low-Earth orbit satellite internet, with its rapid deployment capabilities and wide coverage, can provide stable and reliable communication services to these areas.

[0003] Current low-Earth orbit (LEO) satellite ground antennas primarily employ a planar array design, where the transmitting and receiving antennas are integrated on the same plane. Phased array technology is used to control the direction of the antenna beam, enabling signal transmission and reception with the LEO satellite. The receiving antenna is directly exposed to the external environment, receiving satellite signals directly through the antenna array.

[0004] However, in existing technologies, the transmitting and receiving antennas are arranged on the same plane, making the direction control of the transmitted signal relatively complex, and this situation needs further improvement. Utility Model Content

[0005] To address the complexity of existing signal transmission direction control methods, this application provides a satellite ground antenna array electrical module, antenna array system, and antenna device, employing the following technical solution:

[0006] In a first aspect, this application provides a satellite ground antenna array electrical module, comprising:

[0007] Antenna assembly bracket,

[0008] The antenna mainboard is installed below the antenna assembly bracket;

[0009] A transmit array antenna group is installed above the antenna assembly bracket and includes multiple transmit array antennas, the transmit surfaces of each transmit array antenna being non-parallel;

[0010] A receiving array antenna is mounted below the antenna mainboard;

[0011] The transmitting array antenna group and the receiving array antenna are respectively connected to the antenna main board via signal lines to realize signal transmission and reception.

[0012] As an optimization of a satellite ground antenna array electrical module, the transmit array antenna group includes a first transmit array antenna, a second transmit array antenna, a third transmit array antenna, a fourth transmit array antenna, and a fifth transmit array antenna. The fifth transmit array antenna is arranged parallel to the antenna assembly support. The first transmit array antenna, the second transmit array antenna, the third transmit array antenna, and the fourth transmit array antenna are arranged in a ring array and tilted at a preset angle to the antenna assembly support.

[0013] As an optimization of the electrical module of a satellite ground antenna array, the antenna mainboard includes:

[0014] The main control chip is used to control the signal processing of the transmitting array antenna group and the receiving array antenna;

[0015] A receiving amplifier, connected to the receiving array antenna, is used to amplify the received signal;

[0016] A signal amplifier, connected to a signal interface, is used to amplify the transmitted signal and is connected to the antenna output.

[0017] The main control chip is communicatively connected to the receiving amplifier and the signal amplifier via a PCB circuit.

[0018] As an optimization of a satellite ground antenna array electrical module, the transmitting array antenna includes:

[0019] The beamformer is electrically connected to the main control chip and is used to receive the transmitted signal content and instructions from the main control chip.

[0020] As an optimization of the satellite ground antenna array electrical module, the antenna unit of the transmitting array antenna is implemented through a PCB multilayer board design. The top layer is the antenna radiating unit layer, the second layer is the microstrip line layer, and the first phased array RF chip, the second phased array RF chip, the third phased array RF chip, and the fourth phased array RF chip are respectively connected to the microstrip line circuit of the preset area.

[0021] The beamformer is electrically connected to the first phased array RF chip, the second phased array RF chip, the third phased array RF chip, and the fourth phased array RF chip, and is used to control the beam direction of the transmitting array antenna.

[0022] As an optimization of the electrical module of a satellite ground antenna array, the antenna mainboard also includes:

[0023] A power management chip is used to manage the power supply to various circuit components.

[0024] Secondly, this application provides a satellite ground antenna array system, comprising:

[0025] Antenna assembly cover;

[0026] Such as the satellite ground antenna array electrical module mentioned above;

[0027] Antenna assembly lower cover;

[0028] The upper cover and lower cover of the antenna assembly are sealed together with the antenna array electrical module.

[0029] Thirdly, this application provides a satellite ground antenna device, comprising:

[0030] Base and base stand;

[0031] Such as the satellite ground antenna array system mentioned above;

[0032] An antenna assembly support rod, one end of which is connected to the satellite ground antenna array system;

[0033] A signal reflecting surface is located at the end of the antenna assembly support rod away from the satellite ground antenna array system;

[0034] An angle adjustment assembly, one end of which is connected to the signal reflecting surface, and the other end of which is away from the signal reflecting surface is hinged to the base bracket, for adjusting the angle of the satellite ground antenna array system relative to the base;

[0035] The antenna signal line of the antenna motherboard passes sequentially through the antenna assembly bracket and the antenna assembly support rod, and extends to the antenna outlet of the angle adjustment assembly for electrical connection with the antenna receiving port of the user terminal; the signal reflecting surface is located directly below the satellite ground antenna array system and is used to reflect and converge satellite signals to the receiving array antenna.

[0036] As an optimization of a satellite ground antenna device, the device also includes:

[0037] A reflective surface clamp is attached to the side of the signal reflective surface facing away from the angle adjustment assembly and is connected to the angle adjustment assembly by bolts, thereby fixing the signal reflective surface onto the angle adjustment assembly.

[0038] As an optimization of a satellite ground antenna device, the receiving array antenna adopts an inverted design and collects signals through the signal reflecting surface.

[0039] Compared to existing technologies, the advantages of this application are as follows:

[0040] 1. This application achieves spatial separation of the transmitting and receiving antennas by mounting the transmitting array antenna group above the antenna assembly bracket and the receiving array antenna below the antenna main board; the transmitting array antenna group includes multiple transmitting array antennas, the transmitting surfaces of each transmitting array antenna are not parallel to each other, and are arranged according to a preset angle to facilitate control of the transmitting direction;

[0041] 2. This application uses the upper and lower covers of the antenna assembly to seal with the antenna array electrical module, which avoids the antenna being directly exposed to the external environment, extends the service life of the antenna array system, and reduces environmental interference with the signal;

[0042] 3. This application adjusts the angle of the satellite ground antenna array system relative to the base by adjusting the angle adjustment assembly, thereby achieving angle adjustment of the antenna array system. At the same time, the receiving array antenna adopts an inverted design and collects signals through the signal reflection surface, further reducing the interference of rain and snow weather on the received signal. Attached Figure Description

[0043] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0044] Figure 1 This is a schematic diagram of the structure of a satellite ground antenna array electrical module according to an embodiment of this application;

[0045] Figure 2 This is a schematic diagram of the signal connection of the antenna array electrical module according to an embodiment of this application;

[0046] Figure 3 This is a schematic diagram of the power connection of the antenna array electrical module according to an embodiment of this application;

[0047] Figure 4 This is a schematic diagram of the array antenna signal processing according to an embodiment of this application;

[0048] Figure 5 This is a schematic diagram of the structure of a satellite ground antenna array system according to an embodiment of this application;

[0049] Figure 6 This is a schematic diagram of the structure of a satellite ground antenna device according to an embodiment of this application. Figure 1 ;

[0050] Figure 7 This is a schematic diagram of the structure of a satellite ground antenna device according to an embodiment of this application. Figure 2 ;

[0051] Figure 8 This is a schematic diagram of the antenna lead-out in a satellite ground antenna device according to an embodiment of this application.

[0052] In the diagram: 1. Antenna assembly bracket; 2. Antenna mainboard; 21. Main control chip; 22. Receiver amplifier; 23. Signal amplifier; 24. Signal interface; 25. Power management chip; 3. Transmitter array antenna group; 31. First transmit array antenna; 32. Second transmit array antenna; 33. Third transmit array antenna; 34. Fourth transmit array antenna; 35. Fifth transmit array antenna; 310. Beamformer; 311. First phased array RF chip; 312. Second phased array RF chip; 313. Third phased array RF chip; 314. Fourth phased array RF chip; 4. Receiver array antenna; 5. Antenna assembly top cover; 6. Antenna assembly bottom cover; 7. Base; 8. Base bracket; 9. Antenna assembly support rod; 10. Signal reflector; 11. Angle adjustment assembly; 12. Antenna outlet; 13. Reflector clamp. Detailed Implementation

[0053] To make the technical solution and advantages of this utility model clearer, the present utility model and its beneficial effects will be described in further detail below with reference to specific embodiments and accompanying drawings. However, the embodiments of this utility model are not limited thereto.

[0054] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0055] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0056] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail below.

[0057] In a first aspect, this application provides a satellite ground antenna array electrical module, which adopts the following technical solution:

[0058] Reference Figure 1The satellite ground antenna array electrical module includes an antenna assembly bracket 1, an antenna main board 2, a transmitting array antenna group 3, and a receiving array antenna 4. The antenna main board 2 is mounted on the lower side of the antenna assembly bracket 1, the transmitting array antenna group 3 is mounted on the upper side of the antenna assembly bracket 1, and the receiving array antenna 4 is mounted on the lower side of the antenna main board 2. The transmitting array antenna group 3 and the receiving array antenna 4 are connected to the antenna main board 2 via signal lines to achieve signal transmission and reception.

[0059] Specifically, the transmitting array antenna group 3 includes a first transmitting array antenna 31, a second transmitting array antenna 32, a third transmitting array antenna 33, a fourth transmitting array antenna 34, and a fifth transmitting array antenna 35. Each transmitting array antenna is arranged at a preset angle, and the transmitting surfaces of each transmitting array antenna are not parallel. This arrangement allows the transmitting array antenna group 3 to better cover different directions, improving the accuracy and reliability of signal transmission.

[0060] In a preferred embodiment of this application, the antenna assembly bracket is provided with grooves for accommodating each transmit array antenna. The fifth transmit array antenna 35 is arranged parallel to the antenna assembly bracket 1, and the first transmit array antenna 31, the second transmit array antenna 32, the third transmit array antenna 33, and the fourth transmit array antenna 34 are arranged in a circular array and are inclined at an angle of 5°-45° to the antenna assembly bracket 1.

[0061] Furthermore, referring to Figure 2 The antenna mainboard 2 adopts a multi-layer PCB design, including a main control chip 21, a receiving amplifier 22, and a signal amplifier 23. The main control chip 21 is used to control the signal processing of the transmitting array antenna group 3 and the receiving array antenna 4. The receiving amplifier 22 is connected to the receiving array antenna 4 to amplify the received signal. The signal amplifier 23 is connected to the transmitting signal through the signal interface 24 to amplify the transmitted signal.

[0062] Specifically, the main control chip 21 establishes a communication connection with the receiving amplifier 22 and the signal amplifier 23. Specifically, the main control chip is model OMAP-L138, and the signal amplifier is model HMC519LC4TR.

[0063] Furthermore, refer to Figure 3 The antenna mainboard may include a power management chip 25, which is connected to the transmitting array antenna group 3, the receiving amplifier 21, and the main control chip 22 to manage the power supply of each circuit component. Specifically, the power management chip is an LTM4644.

[0064] Furthermore, the main control chip is electrically connected to the first transmitting array antenna 31, the second transmitting array antenna 32, the third transmitting array antenna 33, the fourth transmitting array antenna 34, and the fifth transmitting array antenna 35, respectively.

[0065] Furthermore, based on the target satellite's location information, the main control chip calculates and selects one of the antennas in the transmitting array antenna group as the preferred antenna, and calculates the amplitude and phase parameters required by the array antenna, and transmits the signal, antenna amplitude and phase to the preferred antenna.

[0066] Furthermore, the transmit array antenna motherboard adopts a multi-layer PCB structure, with the antenna elements including an antenna radiating element layer and a microstrip line layer. The microstrip line layer is used for signal transmission. The antenna elements are partitioned at predetermined positions to transmit signal beams of different phases. Phased array RF chips 311, 312, 313, and 314 are electrically connected to the preset partitions to control the signal beams of the corresponding partitions.

[0067] Furthermore, the first transmitting array antenna 31, the second transmitting array antenna 32, the third transmitting array antenna 33, the fourth transmitting array antenna 34, and the fifth transmitting array antenna 35 are all referenced. Figure 4 Taking the first transmitting array antenna as an example, the first transmitting array antenna includes a beamformer 310 and multiple phased array radio frequency chips 311, 312, 313, and 314. The beamformer 310 receives control signals from the main control chip 21. The beamformer 310 adopts digital beamforming technology and achieves precise beam control by adjusting the amplitude and phase weights of the phased array radio frequency chips 311, 312, 313, and 314.

[0068] Furthermore, in terms of signal processing, the signals from the phased array chips on the receiving array antenna are all converged to the beamformer for comprehensive processing. Specifically, the beamformer 310 is model ADAR1000, and the phased array RF chips 311, 312, 313, and 314 are model ADAR1107.

[0069] In one possible embodiment, the phase of a portion of the transmit array antenna is adjusted by the phased array RF chip 310, while one directly controlled transmit array antenna is retained. This ensures the beam control accuracy of the system, simplifies some signal paths, and improves system efficiency.

[0070] It is understood that the specific chip models mentioned above do not constitute a limitation on the technical solution of this application, and those skilled in the art can select the appropriate chip model according to actual needs.

[0071] Secondly, referring to Figure 5This application provides a satellite ground antenna array system, including an antenna assembly upper cover 5, an antenna assembly lower cover 6, and the aforementioned satellite ground antenna array electrical module. The antenna assembly upper cover 5 and the antenna assembly lower cover 6 are sealed together with the antenna array electrical module to form a complete protective shell. The top of the antenna assembly upper cover 5 is designed with an arc shape to facilitate rainwater drainage and reduce wind resistance. The antenna assembly lower cover 6 is fixedly connected to the antenna assembly upper cover 5 with screws, and a sealing ring can be provided at the connection point to ensure overall waterproof performance. The sealed space formed by the antenna assembly upper cover 5, the antenna assembly lower cover 6, and the antenna array electrical module effectively protects the internal electronic components from environmental factors such as rainwater and dust, extending the system's service life. Simultaneously, this sealed design also improves the system's electromagnetic compatibility and reduces the impact of external electromagnetic interference on system performance.

[0072] Thirdly, referring to Figure 6 and Figure 7 This application provides a satellite ground antenna device, including a base 7, a base bracket 8, an antenna assembly support rod 9, a signal reflector 10, an angle adjustment assembly 11, and the aforementioned satellite ground antenna array system.

[0073] Specifically, one end of the antenna assembly support rod 9 is connected to the satellite ground antenna array system. The signal reflector 10 is located at the end of the antenna assembly support rod 9 away from the satellite ground antenna array system. One end of the angle adjustment assembly 11 is connected to the signal reflector 10, and the other end is hinged to the base bracket 8, used to adjust the angle of the satellite ground antenna array system relative to the base 7.

[0074] Reference Figure 8 An antenna outlet 12 is provided on the side of the angle adjustment assembly 11. The antenna signal line of the antenna main board 2 passes through the antenna assembly bracket 1 and the antenna assembly support rod 9 in sequence, and extends to the antenna outlet 12 of the angle adjustment assembly 11 for electrical connection with the antenna receiving port of the user terminal. The signal reflecting surface 10 is located directly below the satellite ground antenna array system and is used to reflect and converge satellite signals to the receiving array antenna 4.

[0075] In this embodiment, refer to Figure 6 The device also includes a reflector clamp 13, which is connected to the side of the signal reflector 10 facing away from the angle adjustment assembly 11. It is connected to the angle adjustment assembly 11 by bolts, which firmly fixes the signal reflector 10 to the angle adjustment assembly 11, ensuring the stability of the signal reflector 10 under various weather conditions.

[0076] Specifically, the receiving array antenna 4 adopts an inverted design, collecting signals through the signal reflecting surface 10. This allows the receiving array antenna 4 to better receive satellite signals reflected by the signal reflecting surface 10, and also facilitates the installation and maintenance of the entire system.

[0077] The experimental principle of this embodiment is as follows: The satellite ground antenna array electrical module achieves bidirectional signal transmission through the transmitting array antenna group 3 and the receiving array antenna 4. After receiving the satellite downlink signal, the receiving array antenna 4 amplifies it through the receiving amplifier 22, and then the main control chip 21 processes the signal. The transmitting signal is generated by the main control chip 21, amplified by the signal amplifier 23, and transmitted to the satellite through the transmitting array antenna group 3. The transmitting array antenna group 3 adopts a unique spatial arrangement. The fifth transmitting array antenna 35 is set parallel to the antenna assembly support, and the first to fourth transmitting array antennas (31-34) are arranged in a ring array, tilted at an angle of 5°-45° to the antenna assembly support. The transmitting surfaces of each transmitting antenna are not parallel to each other, ensuring maximum signal coverage. The beamformer 36 controls the antenna beam direction through digital beamforming technology, receives the control signal from the main control chip 21 and calculates the amplitude and phase parameters required by each transmitting array antenna, and achieves precise phase adjustment through the phased array RF chip 37.

[0078] Based on the disclosure and teachings of the foregoing specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this application is not limited to the specific embodiments described above, and any obvious improvements, substitutions, or modifications made by those skilled in the art based on this application are within the scope of protection of this application. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this application.

Claims

1. A satellite ground antenna array electrical module, characterized in that, include: Antenna assembly bracket (1), Antenna main board (2) is installed below the antenna assembly bracket (1); A transmit array antenna group (3) is installed above the antenna assembly bracket (1) and includes multiple transmit array antennas, the transmit surfaces of each transmit array antenna being non-parallel; The receiving array antenna (4) is installed below the antenna mainboard (2); The transmitting array antenna group (3) and the receiving array antenna (4) are respectively connected to the antenna motherboard (2) via signal lines to realize signal transmission and reception.

2. The satellite ground antenna array electrical module according to claim 1, characterized in that, The transmitting array antenna group (3) includes a first transmitting array antenna (31), a second transmitting array antenna (32), a third transmitting array antenna (33), a fourth transmitting array antenna (34), and a fifth transmitting array antenna (35). The fifth transmitting array antenna (35) is arranged parallel to the antenna assembly bracket (1). The first transmitting array antenna (31), the second transmitting array antenna (32), the third transmitting array antenna (33), and the fourth transmitting array antenna (34) are arranged in a ring array and are tilted at a preset angle to the antenna assembly bracket (1).

3. The satellite ground antenna array electrical module according to claim 1, characterized in that, The antenna mainboard (2) includes: The main control chip (21) is used to control the signal processing of the transmitting array antenna group (3) and the receiving array antenna (4); A receiving amplifier (22) is connected to the receiving array antenna (4) and is used to amplify the received signal; A signal amplifier (23) is connected to a signal interface to amplify the transmitted signal and is connected to an antenna outlet (12). The main control chip (21) is connected to the receiving amplifier (22) and the signal amplifier (23) via a PCB circuit.

4. The satellite ground antenna array electrical module according to claim 3, characterized in that, The transmitting array antenna includes: Beamformer (310) is electrically connected to the main control chip (21) and is used to receive the transmitted signal content and instructions from the main control chip (21).

5. The satellite ground antenna array electrical module according to claim 4, characterized in that, The antenna unit of the transmitting array antenna is implemented by a PCB multilayer board design. The top layer is the antenna radiating unit layer, the second layer is the microstrip line layer, and the first phased array RF chip (311), the second phased array RF chip (312), the third phased array RF chip (313), and the fourth phased array RF chip (314) are respectively connected to the microstrip line circuit of the preset area. The beamformer (310) is electrically connected to the first phased array RF chip (311), the second phased array RF chip (312), the third phased array RF chip (313), and the fourth phased array RF chip (314) and is used to control the beam direction of the transmitting array antenna.

6. The satellite ground antenna array electrical module according to claim 1, characterized in that, The antenna mainboard (2) also includes: The power management chip (25) is used to manage the power supply of each circuit component.

7. A satellite ground antenna array system, characterized in that, include: Antenna assembly cover (5); Satellite ground antenna array electrical module as described in any one of claims 1-5; Antenna assembly lower cover (6); The upper cover (5) and the lower cover (6) of the antenna assembly are sealed together with the antenna array electrical module.

8. A satellite ground antenna device, characterized in that, include: Base (7) and base (7) support; The satellite ground antenna array system as described in claim 7; Antenna assembly support rod (9), one end of which is connected to the satellite ground antenna array system; The signal reflecting surface (10) is disposed at the end of the antenna assembly support rod (9) away from the satellite ground antenna array system; An angle adjustment assembly (11) is provided, with one end connected to the signal reflecting surface (10) and the other end of the angle adjustment assembly (11) away from the signal reflecting surface (10) hinged to the base (7) bracket, for adjusting the angle of the satellite ground antenna array system relative to the base (7); The antenna signal line of the antenna motherboard (2) passes through the antenna assembly bracket (1) and the antenna assembly support rod (9) in sequence, and extends to the antenna outlet (12) of the angle adjustment assembly (11) for electrical connection with the antenna receiving port of the user terminal; the signal reflecting surface (10) is located directly below the satellite ground antenna array system for reflecting and converging satellite signals to the receiving array antenna (4).

9. The satellite ground antenna device according to claim 8, characterized in that, The device also includes: A reflective surface clamp (13) is connected to the side of the signal reflective surface (10) facing away from the angle adjustment assembly (11) by bolts, thereby fixing the signal reflective surface (10) onto the angle adjustment assembly (11).

10. The satellite ground antenna device according to claim 8, characterized in that, The receiving array antenna (4) adopts an inverted design and collects signals through the signal reflecting surface (10).

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