A type of mobile satellite split-type phased array satellite antenna

Abstract

This application provides a mobile phased array satellite antenna, belonging to the field of phased array satellite communication technology. It includes a base, a control system, a satellite positioning system, and an angle adjustment mechanism. The base is equipped with a phased array transmitting antenna module, a receiving antenna module, and an angle sensor. The receiving antenna module is arranged in a ring around the phased array transmitting antenna module and is movably mounted on the base via the angle adjustment mechanism. The angle adjustment mechanism fine-tunes the azimuth of the receiving antenna module using the angle sensor and the azimuth information from the satellite positioning system. The separate design of the phased array transmitting and receiving antenna modules reduces the adjustment load and improves the product's mobility when used on moving platforms such as vehicles and ships. The ring-shaped arrangement of the receiving antenna module around the phased array transmitting antenna module ensures isotropic signal reception in all directions, guaranteeing effective signal reception.

Description

Technical Field

[0001] This application belongs to the field of phased array satellite communication technology, and more specifically, it relates to a mobile satellite split-type phased array satellite antenna. Background Technology

[0002] Satellite communication technology on the move is mainly used in satellite communication systems operating in motion. In existing technologies, the acquisition and adjustment of satellite signals primarily rely on the mechanical rotation mechanism of the antenna.

[0003] Existing on-the-move satellite communication antennas integrate the transmitting and receiving antennas into the same antenna module. For example, utility model patent CN212648470U discloses a low-profile on-the-move antenna, which integrates both the transmitting and receiving antenna units on the antenna unit mounting section. This type of antenna requires synchronous movement of both the transmitting and receiving antennas during alignment with the satellite signal. However, due to the inherent characteristics of phased array technology, the transmitting antenna can maintain signal transmission without movement. Therefore, synchronously rotating the transmitting and receiving antennas in existing technologies increases rotational load, resulting in poor mobility and inflexibility of the receiving antenna. Especially when applied to vehicles and ships with complex movements, the satellite alignment efficiency of the receiving antenna is affected, making it difficult to meet the needs of frequent azimuth adjustments. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this utility model provides a mobile satellite communication split-type phased array satellite antenna. The phased array transmitting antenna module and receiving antenna module are designed separately, and satellite alignment is achieved by fine-tuning the azimuth of the receiving antenna module. This reduces the adjustment load, improves mobility, and enables stable satellite communication in mobile vehicles.

[0005] To achieve the above objectives, this application provides a mobile satellite communication split-type phased array satellite antenna, including a base, a control system, a satellite positioning system, and an angle adjustment mechanism. The base is equipped with a phased array transmitting antenna module, a receiving antenna module, and an angle sensor. The angle sensor, satellite positioning system, and angle adjustment mechanism are all signal-connected to the control system. The receiving antenna module is arranged in a ring around the phased array transmitting antenna module and is movably mounted on the base via the angle adjustment mechanism. The split design of the phased array transmitting and receiving antenna modules allows for satellite alignment only by fine-tuning the azimuth of the receiving antenna module, eliminating the need to move the phased array transmitting antenna module and reducing the adjustment load. This improves the product's mobility when used on moving vehicles and ships. Because the receiving antenna module is arranged in a ring around the phased array transmitting antenna module, signal reception in all directions remains isotropic, ensuring optimal signal reception.

[0006] Optionally, the angle adjustment mechanism includes at least three sets of lifting mechanisms fixedly connected to the base. These at least three sets of lifting mechanisms are distributed around the receiving antenna module, and the lifting ends of all lifting mechanisms are fixedly connected to the receiving antenna module. By using these at least three sets of lifting mechanisms to move the receiving antenna module up and down at different positions, the tilt angle of the receiving antenna module can be finely adjusted, enabling satellite alignment.

[0007] Optionally, the lifting mechanism includes a lead screw motor, a guide member, and a support slider. The lead screw motor is vertically mounted on the base. The guide member is fixedly connected to the lead screw motor. The support slider is screwed onto the outside of the lead screw of the lead screw motor and slidably mounted on the guide member. The top of the support slider serves as the lifting end and is fixedly connected to the bottom of the receiving antenna module. The lead screw motor is connected to the satellite positioning system signal via an angle sensor. The lead screw motor adjusts the height of the receiving antenna module by driving the support slider to rise and fall. The guide member prevents the support slider from rotating with the lead screw of the lead screw motor, ensuring azimuth.

[0008] Optionally, the guide includes a vertical support plate and a horizontal support plate located on top of the vertical support plate. The vertical support plate is connected to the lead screw motor, and a groove is formed on the horizontal connecting plate. The support slider includes a top support plate, a bottom connecting plate, and a vertical connecting plate. The top support plate is connected to the bottom connecting plate via the vertical connecting plate. The bottom connecting plate is screwed onto the outside of the lead screw of the lead screw motor. The vertical connecting plate is slidably disposed in the groove. The top support plate is fixedly connected to the bottom of the receiving antenna module as a lifting end. The vertical connecting plate slides vertically through the groove on the guide to ensure that the support slider can only move vertically and will not rotate with the lead screw motor. At the same time, the support slider is mutually limited by the lead screw of the lead screw motor via the bottom connecting plate and by the guide, making it difficult for the support slider to deviate and ensuring azimuth accuracy.

[0009] Optionally, the bottom connecting plate has rollers along its edge that roll against the vertical support plate. These rollers provide additional support points between the support slider and the guide, improving the stability of the support slider's orientation. Simultaneously, the rollers effectively reduce sliding resistance.

[0010] Optionally, an elastic pad is fixedly clamped between the lifting end and the bottom of the receiving antenna module. When the orientation of the receiving antenna module tilts due to fine-tuning, the deformation of the elastic pad can offset the offset caused by the angle change between the receiving antenna module and the lifting end, ensuring that the connection between the two will not jam. At the same time, the elastic pad can also provide a certain amount of cushioning to ensure the stability of the receiving antenna module on the moving platform.

[0011] Optionally, the receiving antenna module includes several arc-shaped module units, each corresponding to a lifting mechanism. The bottom wall of each arc-shaped module unit is fixedly connected to the lifting end of the corresponding lifting mechanism, and a sliding compensation structure is provided between any two adjacent arc-shaped module units. When the lifting mechanism drives the receiving antenna module to adjust its orientation, the arc-shaped module units can adapt their dimensions to the tilt angle through the sliding compensation structure, thus avoiding rotational jamming caused by rigid tilting.

[0012] Optionally, the sliding compensation structure includes a groove and a protrusion, which are located at the abutting ends of two adjacent arc-shaped module units. The height of the protrusion is the same as the height of the groove, and the protrusion is movably inserted into the groove. When the orientation of the receiving antenna module changes, the protrusion can slide along the groove without separating, thus achieving dimensional compensation adjustment.

[0013] The advantages of the technical solution in this application compared to the prior art are as follows:

[0014] This application employs a separate design for the phased array transmitting antenna module and the receiving antenna module. Satellite aiming is achieved only by fine-tuning the azimuth of the receiving antenna module, eliminating the need to move the phased array transmitting antenna module. This reduces the adjustment load and improves the product's mobility when used on moving platforms such as vehicles and ships. The receiving antenna module, arranged in a ring around the phased array transmitting antenna module, ensures isotropic signal reception in all directions, guaranteeing optimal signal reception. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A schematic diagram of the overall structure of a modular phased array satellite antenna for mobile communication satellites.

[0017] Figure 2 This is a schematic diagram of the lifting mechanism.

[0018] Icons: 1. Base; 2. Phased array transmitting antenna module; 3. Receiving antenna module; 4. Lifting mechanism; 301. Arc-shaped module unit; 302. Groove; 303. Protrusion; 401. Lead screw motor; 402. Guide component; 403. Support slider; 404. Vertical support plate; 405. Horizontal support plate; 406. Slide groove; 407. Top support plate; 408. Bottom connecting plate; 409. Vertical connecting plate; 410. Roller; 411. Elastic pad. Detailed Implementation

[0019] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0020] Example:

[0021] This embodiment provides a mobile satellite communication satellite split-type phased array satellite antenna, based on... Figure 1 As shown, the system includes a base 1, a control system, a satellite positioning system, and an angle adjustment mechanism. The base 1 is equipped with a phased array transmitting antenna module 2, a receiving antenna module 3, and an angle sensor (the control system, satellite positioning system, and angle sensor are not shown in the attached diagram). The angle sensor, satellite positioning system, and angle adjustment mechanism are all signal-connected to the control system. In this embodiment, based on phased array technology, the phased array transmitting antenna module 2 consists of 25 transmitting points. The satellite positioning system is either the BeiDou Navigation Satellite System or the GPS Global Positioning System, used to sense the real-time geographical location of the carrier. The angle sensor is a common sensor used in existing mobile communication technologies to sense the angle information of a moving carrier. The control system is a common hardware and system used in existing mobile communication technologies to control the antenna angle; both are existing technologies and will not be described further.

[0022] Based on the above structure, the receiving antenna module 3 is arranged in a ring around the phased array transmitting antenna module 2, and is movably mounted on the base 1 via an angle adjustment mechanism. The system acquires real-time geographical location data through a satellite positioning system and obtains real-time angle information of the base 1 on the moving carrier (such as a ship or vehicle) through an angle sensor. The control system combines the angle information of the carrier and the relative position of the target satellite to perform simulation calculations, and dynamically adjusts the angle and direction of the receiving antenna module 3 through the angle adjustment mechanism. The system adjusts the strength and direction of the transmitted signal through the phased array transmitting antenna module 2, and achieves precise satellite alignment through fine-tuning the angle of the receiving antenna module 3. Because the phased array transmitting antenna module 2 and the receiving antenna module 3 are designed separately, satellite alignment is achieved only by fine-tuning the azimuth of the receiving antenna module 3, without moving the phased array transmitting antenna module 2, reducing the adjustment load and improving the product's mobility when applied to complex moving carriers such as vehicles and ships. Even during high-speed movement, it can maintain continuous and stable reception of satellite signals. Meanwhile, since the receiving antenna module 3 is arranged in a ring around the phased array transmitting antenna module 2, the signal reception effect in all directions remains isotropic, ensuring the signal reception effect.

[0023] Furthermore, the angle adjustment mechanism includes at least three sets of lifting mechanisms 4 fixedly connected to the base 1, with the at least three sets of lifting mechanisms 4 distributed around the receiving antenna module 3. Since the receiving antenna module 3 needs to be able to tilt and adjust in various directions, at least three sets of lifting mechanisms 4 are required to cooperate with each other. In this embodiment, based on... Figure 1 As shown, there are four sets of adjustment mechanisms, but it can also be set to three or five sets, etc. The lifting ends of all lifting mechanisms 4 are fixedly connected to the receiving antenna module 3. By coordinating the lifting mechanisms 4, the height position of the receiving antenna module 3 is adjusted at various points to achieve fine adjustment of the tilt angle of the receiving antenna module 3, thus enabling satellite alignment.

[0024] In detail, based on Figure 2 As shown, the lifting mechanism 4 includes a lead screw motor 401, a guide member 402, and a support slider 403. The lead screw motor 401 is vertically mounted on the base 1, and the guide member 402 is fixedly connected to the lead screw motor 401. The guide member 402 can be directly fixed to the lead screw motor 401, or it can be indirectly fixed to the lead screw motor 401 by being directly mounted on the base 1, requiring only that both remain in a fixed position. The support slider 403 is screwed onto the outside of the lead screw of the lead screw motor 401 and slidably mounted on the guide member 402. The top of the support slider 403 serves as the lifting end and is fixedly connected to the bottom of the receiving antenna module 3. The lead screw motor 401 is connected to the satellite positioning system signal via an angle sensor. In use, the angle sensor controls the movement of the lead screw motors of each lifting mechanism 4 through the position signal received from the satellite positioning system. The lead screw motor 401 drives the support slider 403 to move up and down, thereby adjusting the height of the receiving antenna module 3. The guide 402 is used to prevent the support slider 403 from rotating with the lead screw of the lead screw motor 401, thus ensuring its orientation.

[0025] Furthermore, based on Figure 2As shown, the guide member 402 includes a vertical support plate 404 and a horizontal support plate 405 located on top of the vertical support plate 404. The vertical support plate 404 is connected to the lead screw motor 401, and a groove 406 is provided on the horizontal connecting plate. The support slider 403 includes a top support plate 407, a bottom connecting plate 408, and a vertical connecting plate 409. The top support plate 407 is connected to the bottom connecting plate 408 through the vertical connecting plate 409. The bottom connecting plate 408 is screwed onto the outside of the lead screw of the lead screw motor 401. The vertical connecting plate 409 is slidably disposed in the groove 406. The top support plate 407 is fixedly connected to the bottom of the receiving antenna module 3 as a lifting end. The vertical connecting plate 409 slides vertically through the groove 406 on the guide member 402 to ensure that the support slider 403 can only move vertically and will not rotate with the lead screw motor 401. Meanwhile, the support slider 403 is mutually limited by the bottom connecting plate 408 and the lead screw of the lead screw motor 401, and is limited by the vertical connecting plate 409 and the guide 402, so that the support slider 403 is not easy to deviate and the orientation accuracy is guaranteed.

[0026] Preferably, the bottom connecting plate 408 has a roller 410 on its edge that rolls against the vertical support plate 404. The roller 410 adds an extra support point between the support slider 403 and the guide member 402, improving the stability of the support slider 403's orientation. At the same time, the roller 410 can also effectively reduce sliding resistance.

[0027] Furthermore, based on Figure 2 As shown, an elastic pad 411 is fixedly clamped between the lifting end and the bottom of the receiving antenna module 3. When the orientation of the receiving antenna module 3 tilts due to fine adjustment, the deformation of the elastic pad 411 can offset the offset caused by the angle change between the receiving antenna module 3 and the lifting end, ensuring that the connection between the two will not jam. At the same time, the elastic pad 411 can also provide a certain amount of cushioning to ensure the stability of the receiving antenna module 3 on the moving carrier.

[0028] Furthermore, based on Figure 1 As shown, the receiving antenna module 3 includes several arc-shaped module units 301, each corresponding to a lifting mechanism 4. In this embodiment, there are four arc-shaped module units 301, corresponding to four sets of lifting mechanisms 4. The bottom wall of each arc-shaped module unit 301 is fixedly connected to the lifting end of the corresponding lifting mechanism 4, and a sliding compensation structure is provided between any two adjacent arc-shaped module units 301. When the lifting mechanism 4 drives the receiving antenna module 3 to adjust its orientation, the arc-shaped module units 301 can adapt their size to the tilt angle through the sliding compensation structure to avoid rotation jamming caused by rigid tilting.

[0029] In detail, based on Figure 1As shown, the sliding compensation structure includes a groove 302 and a protrusion 303. The groove 302 and the protrusion 303 are located at the ends of two adjacent arc-shaped module units 301 that abut against each other. The height of the protrusion 303 is the same as the height of the groove 302, and the protrusion 303 is movably inserted into the groove 302. When the orientation of the receiving antenna module 3 changes, the protrusion 303 can slide along the groove 302 without separating, thus achieving dimensional compensation adjustment.

[0030] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A mobile satellite split-type phased array satellite antenna, comprising a base (1), a control system, a satellite positioning system and an angle adjustment mechanism, wherein the base (1) is equipped with a phased array transmitting antenna module (2), a receiving antenna module (3) and an angle sensor, and the angle sensor, the satellite positioning system and the angle adjustment mechanism are all signal connected to the control system; Its features are: The receiving antenna module (3) is arranged in a ring around the phased array transmitting antenna module (2), and the receiving antenna module (3) is movably mounted on the base (1) through the angle adjustment mechanism. The angle adjustment mechanism includes at least three sets of lifting mechanisms (4) fixedly connected to the base (1). The at least three sets of lifting mechanisms (4) are distributed around the receiving antenna module (3). The lifting ends of all the lifting mechanisms (4) are fixedly connected to the receiving antenna module (3). The receiving antenna module (3) includes several arc-shaped module units (301) that correspond one-to-one with the lifting mechanism (4). The bottom wall of each arc-shaped module unit (301) is fixedly connected to the lifting end of the corresponding lifting mechanism (4). A sliding compensation structure is provided between any two adjacent arc-shaped module units (301). The sliding compensation structure includes a groove (302) and a protrusion (303). The groove (302) and the protrusion (303) are respectively located at the ends of the two adjacent arc-shaped module units (301) that are connected to each other. The height of the protrusion (303) is the same as the height of the groove (302). The protrusion (303) is movably inserted into the groove (302).

2. The mobile satellite communication split-type phased array satellite antenna as described in claim 1, characterized in that: The lifting mechanism (4) includes a lead screw motor (401), a guide (402), and a support slider (403). The lead screw motor (401) is vertically mounted on the base (1). The guide (402) is fixedly connected to the lead screw motor (401). The support slider (403) is screwed onto the outside of the lead screw of the lead screw motor (401) and slidably disposed on the guide (402). The top of the support slider (403) serves as the lifting end and is fixedly connected to the bottom of the receiving antenna module (3). The lead screw motor (401) is connected to the satellite positioning system signal through the angle sensor.

3. The mobile satellite communication split-type phased array satellite antenna as described in claim 2, characterized in that: The guide (402) includes a vertical support plate (404) and a horizontal support plate (405) located on top of the vertical support plate (404). The vertical support plate (404) is connected to the lead screw motor (401), and a sliding groove (406) is provided on the horizontal support plate. The support slider (403) includes a top support plate (407), a bottom connecting plate (408), and a vertical connecting plate (409). The top support plate (407) is connected to the bottom connecting plate (408) through the vertical connecting plate (409). The bottom connecting plate (408) is screwed onto the outside of the lead screw of the lead screw motor (401). The vertical connecting plate (409) is slidably disposed in the slide groove (406). The top support plate (407) is fixedly connected to the bottom of the receiving antenna module (3) as the lifting end.

4. The mobile satellite communication split-type phased array satellite antenna as described in claim 3, characterized in that: The bottom connecting plate (408) is provided with a roller (410) that rolls against the vertical support plate (404) along its edge.

5. The mobile satellite communication split-type phased array satellite antenna as described in claim 1, 2, 3, or 4, characterized in that: An elastic pad (411) is fixedly clamped between the lifting end and the bottom of the receiving antenna module (3).

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