Transportable low-orbit satellite communication antenna

Abstract

The utility model discloses a transportable low-orbit satellite communication antenna, and belongs to the technical field of antennas. The antenna is composed of a base, an X-Y-shaped seat frame, a reflecting surface, a feed source network, a radio frequency assembly and the like, the base is formed by combining an annular base plate and a stand column and stably supports the antenna, the X-Y-shaped seat frame achieves tracking and pointing of the antenna and has the top-crossing tracking capacity, the reflecting surface is designed in a split mode and is convenient to store and transport, and the antenna is arranged on the X-Y-shaped seat frame. The feed source network is composed of a feed source assembly and a ring focus type auxiliary face, the auxiliary face has the adjusting capacity and can adjust the phase center of a feed source, the radio frequency assembly is integrally designed, and transceiving processing of radio frequency signals is achieved. According to the utility model, based on the development of low-orbit Internet constellations, the low-orbit satellite communication system has a transportable function and a top-crossing tracking communication capability, and can realize continuous tracking communication of low-orbit satellites.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of antenna, and is developed based on the application demand of low orbit internet constellation, especially refers to a portable low orbit satellite communication antenna, which can realize low orbit satellite communication function. BACKGROUND

[0002] The existing low orbit internet constellation puts forward higher requirements for ground terminal antennas, and the existing ground terminal antennas have the following shortcomings:

[0003] 1. The existing low orbit internet constellation ground terminal antenna is mostly fixed station or relatively heavy, and lacks flexible deployment capability;

[0004] 2. The existing low orbit internet constellation ground terminal antenna is mostly A-E type, and the antenna has a tracking blind area and does not have over-the-top tracking capability. INVENTION CONTENTS

[0005] Therefore, the utility model realizes the portable function, can be quickly erected and withdrawn, and has high flexible deployment, and on the other hand, the utility model designs the X-Y type antenna seat frame, so that the antenna has over-the-top tracking capability, and the antenna no longer has a tracking blind area, and can continuously track and communicate with the low orbit satellite.

[0006] In order to achieve the above purpose, the technical scheme adopted by the present application is as follows:

[0007] A portable low orbit satellite communication antenna, comprising a base (1), a support column (2), an X-Y type seat frame (3), a reflecting surface (4) and a feed network (5); the support column (2) is installed on the top of the base, the X-Y type seat frame (3) is arranged on the top of the support column, the reflecting surface is installed on the X-Y type seat frame (3), and the reflecting surface is driven to move by the X-Y type seat frame (3); the feed network is installed at the center of the reflecting surface, a radio frequency assembly is arranged on one side of the X-Y type seat frame (3), and the radio frequency assembly (6) is connected with the feed network;

[0008] The base comprises a base (8) and a ring beam (7), wherein the ring beam is installed on the top of the base; the base is a cross-shaped structure, and the ring beam (7) is a ring-shaped planar structure;

[0009] The X-Y type seat frame (3) comprises an X-axis drive assembly (11) and a Y-axis drive assembly (13); the output end of the X-axis drive assembly (11) is connected with an X-axis rotating seat and drives the X-axis rotating seat to rotate; the Y-axis drive assembly (13) is installed on the X-axis rotating seat; the output end of the Y-axis drive assembly is connected with an integrated reflecting surface connecting plate and a radio frequency assembly connecting plate.

[0010] Further, the reflecting surface is a split structure, comprising a center disc (18), a panel (19) and a lock buckle;

[0011] The panel has a plurality of inner ends, which are inserted into the center disc and arranged along the circumference of the center disc; adjacent panels are connected by the lock buckle structure.

[0012] Further, the X-axis drive assembly (11) has two output shafts located on the same straight line, and the X-axis rotating seat is an n-shaped structure, the two ends of which are connected to the two output shafts respectively; the X-axis drive assembly (11) drives the X-axis rotating seat to rotate along the central axis of the output shaft.

[0013] Further, the feed network (5) comprises a network (21), a feed (22), a sub-panel (23), a sub-panel adjusting plate (24) and a sub-panel support rod (25);

[0014] The network (21) is installed at the center of the center disc (18) and penetrates the mounting disc, and is connected with the radio frequency assembly (6) mounted on the X-Y type seat frame (3); the feed (22) is installed on the top of the network (21); the sub-panel is located above the feed (22) and is supported on the network (21) through the sub-panel support rod and the sub-panel adjusting plate.

[0015] Further, the sub-panel support rod is provided with four sub-panel support rods; one end of the sub-panel support rod is installed on the network, and the other end is connected with the sub-panel adjusting plate; the sub-panel is installed on the sub-panel adjusting plate.

[0016] The technical scheme has the following beneficial effects:

[0017] The base of the utility model is the combination of annular bottom disc and stand, which stably supports the antenna, the X-Y type seat frame realizes the tracking and pointing of the antenna, has the overtop tracking ability, the reflecting surface is split design, which is convenient for storage and transportation, the feed network is composed of feed assembly and ring focus type sub-panel, the sub-panel has the adjusting ability, can adjust the feed phase center, the radio frequency assembly is integrated design, realizes the receiving and transmitting processing of radio frequency signal.

[0018] The utility model is portable antenna, realized the flexibility of low orbit internet constellation ground end antenna deployment;

[0019] The utility model designs X-Y type antenna seat frame, makes the antenna have the overtop tracking ability, and the antenna no longer has the tracking blind area. DETAILED DESCRIPTION

[0020] Figure 1 Antenna working state diagram;

[0021] Figure 2 Antenna exploded view;

[0022] Figure 3 Antenna base diagram;

[0023] Figure 4 Antenna XY type bracket diagram;

[0024] Figure 5 Antenna reflector;

[0025] Figure 6 Feed network diagram;

[0026] The meanings of the labels in the diagram are as follows:

[0027] 1. Base, 2. Support column, 3. XY type bracket, 4. Reflector, 5. Feed network, 6. RF component, 7. Ring beam, 8. Base, 9. Support column, 10. Top plate, 11. X-axis drive assembly, 12. X-axis limit sensor, 13. Y-axis drive assembly, 14. Y-axis limit sensor, 15. RF component connecting plate, 16. Reflector connecting plate, 17. X-axis rotating seat, 18. Center plate, 19. Panel, 20. Lock, 21. Network, 22. Feed, 23. Sub-face, 24. Sub-face adjustment plate, 25. Sub-face support rod. Detailed Implementation

[0028] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0029] A portable low-Earth orbit satellite communication antenna is composed of a base, an XY-type bracket, a reflector, a feed network, and radio frequency components. The antenna is portable and has over-the-top tracking communication capability, enabling continuous tracking and communication with low-Earth orbit satellites.

[0030] The base is a combination of a ring-shaped chassis and a column, providing stable support for the antenna. The base is a movable part and can be moved. In operation, counterweight blocks are applied to the base for reinforcement.

[0031] The XY type mount enables antenna tracking and pointing. The XY type mount consists of joint module motors, drivers, limit sensors, etc., and can achieve over-the-top tracking function.

[0032] The reflector is designed in a segmented manner for easy storage and transportation. The feed network consists of a feed assembly and a ring-shaped sub-face. The sub-face has adjustment capabilities, which can adjust the feed phase center.

[0033] The integrated design of the radio frequency components enables the transmission and reception of radio frequency signals.

[0034] like Figure 1 The diagram shown is a diagram illustrating the antenna's operational status. Figure 2 The image shows an exploded view of the antenna, which consists of a base 1, a support 2, an XY-type bracket 3, a reflector 4, a feed network 5, and an RF component 6.

[0035] likeFigure 3 As shown, the base consists of a ring beam 7 and a base 8. The base has a grid-like structure, increasing the contact area with the ground. The ring beam 7 has a ring-shaped planar structure, with a reserved connection plane for the radome. When the radome needs to be installed, it is fixed to the upper side of the ring beam. The support column consists of a support column 9 and a top plate 10. The lower end of the support column is connected to the base 8, and the upper end is the top plate 10, which serves as the mounting surface for the XY-type bracket.

[0036] like Figure 4 The diagram shows a schematic of an XY-type mounting bracket. The lower side houses the X-axis drive assembly 11, which controls the X-axis movement of the antenna. An X-axis limit sensor 12 is located on its side to limit and protect the X-axis movement. Similarly, the upper side houses the Y-axis drive assembly 13, and a Y-axis limit sensor 14 is located on its side to limit and protect the Y-axis movement. An RF component connection plate 15 is located on the side of the XY-type mounting bracket, providing a connection structure for the RF components. A reflective surface is located on the top of the XY-type mounting bracket. Figure 4 Connecting plate 16 provides a connection structure for the reflective surface.

[0037] like Figure 5 The diagram shows a schematic of the antenna reflector. The antenna reflector is designed in a segmented assembly form, which facilitates the storage and transportation of the antenna. The antenna reflector consists of a central plate 18, a panel 19, and a latch 20. The panel and the central plate are connected by a latch. The panel and the central plate are made of carbon fiber composite material.

[0038] like Figure 6 The diagram shows the antenna feed network. The lower part of the feed network is the network component 21, which connects to the center disk 18 of the reflector. The middle part of the feed network is the feed 22, which performs the function of transmitting and receiving radio frequency signals. The upper part of the feed network is the sub-surface 23, and the top of the sub-surface is the sub-surface adjustment plate 24, which adjusts the installation posture of the sub-surface to achieve optimal electrical performance. The sub-surface adjustment plate is connected to the network component via the sub-surface support rod 25.

[0039] The parts of this invention not described in detail are techniques that belong to those skilled in the art.

[0040] The above description is merely a preferred embodiment of the present invention, intended to further illustrate the invention, and not to limit it. Any simple substitutions made based on the content disclosed in the above text and drawings are within the scope of protection of this patent.

Claims

1. A transportable low earth orbit satellite communication antenna, characterized by, The application relates to a satellite antenna, which comprises a base (1), a support column (2), an X-Y type seat frame (3), a reflecting surface (4) and a feed network (5); the support column (2) is arranged on the top of the base, the X-Y type seat frame (3) is arranged on the top of the support column, the reflecting surface is arranged on the X-Y type seat frame (3) and is driven to move by the X-Y type seat frame (3); the feed network is arranged at the center of the reflecting surface, a radio frequency assembly is arranged on one side of the X-Y type seat frame (3), and the radio frequency assembly (6) is connected with the feed network. The base comprises a base plate (8) and a ring beam (7), wherein the ring beam is arranged on the top of the base plate; the base plate is in a well type structure, and the ring beam (7) is in a ring type plane structure. The X-Y type seat frame (3) comprises an X-axis driving assembly (11) and a Y-axis driving assembly (13); the output end of the X-axis driving assembly (11) is connected with an X-axis rotating seat and drives the X-axis rotating seat to rotate; the Y-axis driving assembly (13) is arranged on the X-axis rotating seat; the output end of the Y-axis driving assembly is connected with an integrated reflecting surface connecting plate and a radio frequency assembly connecting plate.

2. The transportable low earth orbit satellite communication antenna of claim 1, wherein, The reflecting surface is in a split type structure and comprises a center disc (18), a panel (19) and a lock buckle; The panel has a plurality of inner ends, which are inserted into the center disc and are arranged in an array along the circumference of the center disc; adjacent panels are connected through the lock buckle structure.

3. The transportable low earth orbit satellite communication antenna of claim 1, wherein, The X-axis driving assembly (11) has two output shafts located on the same straight line, the X-axis rotating seat is in an n type structure, and two ends of the X-axis rotating seat are connected with the two output shafts respectively; the X-axis driving assembly (11) drives the X-axis rotating seat to rotate along the central axis of the output shaft.

4. The transportable low earth orbit satellite communication antenna of claim 2, wherein, The feed network (5) comprises a network (21), a feed (22), a sub surface (23), a sub surface adjusting plate (24) and a sub surface supporting rod (25); The network (21) is arranged at the center of the center disc (18) and penetrates the mounting disc, and is connected with the radio frequency assembly (6) arranged on the X-Y type seat frame (3); the feed (22) is arranged on the top of the network (21); the sub surface is arranged above the feed (22) and is supported on the network (21) through the sub surface supporting rod and the sub surface adjusting plate.

5. The transportable low earth orbit satellite communication antenna of claim 4, wherein, The sub surface supporting rod has four sub surface supporting rods; one end of the sub surface supporting rod is arranged on the network, and the other end is connected with the sub surface adjusting plate; the sub surface is arranged on the sub surface adjusting plate.

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