Security communication antenna transmitting and receiving array plane variable-pitch system and method

Abstract

The invention discloses a satellite communication antenna transmitting-receiving array plane variable-pitch system and method, and aims to solve the problems that the isolation distance between transmitting-receiving array planes of an existing phased-array antenna cannot be determined through simulation, and if the distance is designed to be unadjustable, the development progress of a whole machine and the one-time success rate of a project are influenced, and the working efficiency is reduced. And large uncertainty is brought to project progress and success. The system comprises a module shell and an antenna housing, and a plurality of heat dissipation holes are formed in the outer side of the module shell. According to the transmitting-receiving array plane, the isolation distance between the transmitting-receiving array planes can be adjusted by adjusting the positions of the array plane groups in the different first mounting holes in the module shell, meanwhile, sealing of the heat dissipation air channels and reliable heat dissipation of the system are achieved by installing the wind shielding cover plates with different widths or different numbers, and therefore the module is ingeniously designed, and the heat dissipation efficiency is improved. The isolation distance of the transmitting-receiving array plane can be adjusted, the appearance of the system is not affected, the variable-distance design of the transmitting-receiving array plane is realized, and the design is ensured to meet various performance indexes at a time.

Description

Technical Field

[0001] The invention belongs to the technical field of satellite communication antennas, and in particular relates to a variable-range system and method for a satellite communication antenna transceiver array. Background Art

[0002] With the advancement of information construction and integrated space-ground network projects, satellite communications have ushered in a new round of rapid development and play an important role in mobile communications, military, aerospace, navigation and other fields. Satellite communication antennas mainly refer to a flat-panel phased array antenna. The antenna can produce a controllable beam shape by precisely adjusting the phase difference between each antenna unit, and can quickly turn in space. The TR chip in the phased array antenna is very sensitive to temperature, and the signal phase will change with temperature. When the temperature is high or the temperature difference is large, the spatial synthesis efficiency of the beam will decrease, thereby affecting the antenna performance.

[0003] At present, FDD technology provides users with two certain frequency bands, the forward band and the reverse band. In order to minimize the mutual interference between the forward band and the reverse band on each user channel, isolation measures need to be designed between the transceiver arrays, such as a certain isolation distance, toothed isolation slots, etc. The transceiver arrays mainly use air cooling for forced heat dissipation, and the version iteration is relatively fast. Since the isolation distance between the transceiver arrays of the phased array antenna cannot be determined by simulation, if the spacing is designed to be non-adjustable, it will affect the overall development progress and the first-time success rate of the project, and bring greater uncertainty to the project progress and success. Summary of the invention

[0004] (1) Technical issues to be resolved In view of the deficiencies in the prior art, the purpose of the present invention is to provide a variable-distance system and method for satellite communication antenna transceiver arrays. The system aims to solve the technical problem that the isolation distance between the existing phased array antenna transceiver arrays cannot be determined by simulation. If the spacing is designed to be non-adjustable, it will affect the overall development progress and the first-time success rate of the project, bringing greater uncertainty to the project progress and success.

[0005] (2) Technical solution In order to solve the above technical problems, the present invention provides a satellite communication antenna transceiver array variable pitch system and method, the system includes a module shell and an antenna cover, the outer side of the module shell is provided with a plurality of heat dissipation holes, the upper surface edge of the module shell is provided with a plurality of first mounting holes, the left first mounting hole is provided with a first radiator, the right first mounting hole is provided with a second radiator, the upper surfaces of the first radiator and the second radiator are respectively provided with a transmitting array and a receiving array, the first radiator and the second radiator can move relative to each other, the antenna cover is installed on the upper surface of the module shell; a bracket, a windshield cover and two fan modules, the bracket is used to make the module shell form two independent air ducts, the first radiator is located inside the air duct on the left, the windshield cover and the second radiator are located inside the air duct on the right, and the two fan modules are installed on the left and right sides of the lower surface of the module shell and respectively discharge the heat of the first radiator and the second radiator from the heat dissipation holes.

[0006] Preferably, the first radiator and the second radiator both have a mounting surface and a heat dissipation surface, and a plurality of heat dissipation teeth are fixedly connected to the lower surface of the heat dissipation surface. The plurality of heat dissipation teeth form an air gathering port in the middle of the heat dissipation surface, and the plurality of heat dissipation teeth are arranged in a circular array from the air gathering port to the outside.

[0007] Furthermore, the lower surface of the module shell is fixedly connected to a rear cover, and two through holes corresponding to the air gathering ports are provided on the left and right sides of the lower surface of the module shell and the rear cover, and the two fan modules are respectively installed inside the two through holes.

[0008] Furthermore, the bracket includes a mounting part and a blocking part, the front and rear ends of the mounting part are fixedly connected to the first mounting hole in the middle part, a plurality of second mounting holes are provided on the left and right sides of the mounting part, one side of the blocking part is fixedly connected to the mounting part, and the other side of the blocking part contacts the inner bottom of the module shell.

[0009] Furthermore, the first radiator is fixedly connected to the first mounting hole and the second mounting hole on the left side by screws, the second radiator is fixedly connected to the first mounting hole on the right side by screws, and the wind shield cover is fixedly connected between the second radiator and the second mounting hole on the right side.

[0010] Furthermore, an auxiliary frame is fixedly connected to the multiple first mounting holes by screws, the front and rear ends of the mounting part are fixedly connected to the front and rear inner walls of the auxiliary frame, a fixed frame and a movable frame are respectively provided on the left and right sides of the upper surface of the auxiliary frame, there are two wind shield covers and they are respectively fixedly connected to the left and right sides of the movable frame, the fixed frame is fixedly connected to the auxiliary frame by the first screw, the movable frame is slidably connected to the auxiliary frame, the edges of the fixed frame and the movable frame are respectively provided with a third mounting hole and a fourth mounting hole, the first radiator is fixedly connected to the third mounting hole by screws, and the second radiator is fixedly connected to the fourth mounting hole by screws.

[0011] Furthermore, a plurality of guide blocks are fixedly connected to the upper right surface of the auxiliary frame, and the movable frame is provided with long holes corresponding to the guide blocks, and the guide blocks are slidably connected inside the long holes.

[0012] Furthermore, a rack is fixedly connected to the right side of the fixed frame, a groove corresponding to the rack is opened on the left upper surface of the windshield cover, an adjustment knob is rotatably connected to the inner bottom wall of the groove, a gear is fixedly connected to the outer surface of the adjustment knob, and the gear is meshingly connected to the rack.

[0013] Furthermore, the movable frame is fixedly connected to the auxiliary frame by a second screw, and an adjustment hole corresponding to the second screw is provided on the movable frame.

[0014] A method for variable-range transmission and reception array of a satellite communication antenna comprises the following steps: Step 1: Install the transmitting array on the first radiator and the receiving array on the second radiator. At this time, the transmitting and receiving antenna arrays are integrated with their respective radiators. When in use, the heat of the transmitting and receiving arrays is transferred to the bottom radiator through the thermal interface material. Step 2: After installing the bracket, the module housing forms two independent air ducts. The first radiator is installed on the multiple first mounting holes on the left side by screws, and the second radiator is installed on the multiple first mounting holes on the right side. The isolation distance between the transmitting and receiving arrays is adjusted by adjusting the positions of the first radiator and the second radiator on the module housing at different first mounting holes. At this time, the bracket is in contact with the first radiator, and the gap between the second radiator and the mounting bracket is closed by installing windshield covers of different widths or different numbers to achieve sealing of the heat dissipation duct and torque change between the transmitting array and the receiving array. Step 3: Install the fan module on the left and right sides of the module housing, corresponding to the positions of the first radiator and the second radiator respectively, and then use the cooling fan in the fan module to drive the air flow to take away the system heat, so that the first radiator and the second radiator can dissipate heat reliably.

[0015] Beneficial Effects Compared with the prior art, the present invention has the following beneficial effects: The present invention forms a modular design for the transceiver array by integrally assembling the transceiver antenna array with their respective heat sinks. At this time, the heat of the transceiver array is transferred to the bottom heat sink through the thermal interface material. Suitable heat dissipation teeth are designed on the heat sink, and then the heat dissipation fan on the bottom fan module drives the air flow to take away the heat of the radiator, which will not affect the heat dissipation system of the whole machine, can meet the isolation requirements between the transceiver arrays, and also does not affect the appearance, heat dissipation and reliability of the system.

[0016] In the above scheme, the isolation distance between the transceiver arrays can be adjusted by adjusting the positions of different first mounting holes of the array group on the module shell. At the same time, by installing wind shield covers of different widths or different numbers, the sealing of the heat dissipation duct and reliable heat dissipation of the system can be achieved. The module is cleverly designed to make the isolation distance of the transceiver arrays adjustable without affecting the appearance of the system, thereby realizing the variable distance design of the transceiver arrays and ensuring that the design meets various performance indicators at one time.

[0017] In the above scheme, an auxiliary frame, a fixed frame and a movable frame are set, and the first radiator is installed on the fixed frame, and the second radiator is installed on the movable frame. When changing the torque, the adjusting knob is turned to drive the gear to rotate. During the rotation process, the gear cooperates with the rack to move the windshield cover and the movable frame, and then the second screw is tightened to fix the movable frame and the auxiliary frame together, so that the torque change between the transmitting array and the receiving array is more convenient, and the distance adjustment is more precise. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the variable-pitch system for the transceiver array of a satellite communication antenna; Figure 2 This is a schematic diagram of the exploded structure of the variable pitch system of the satellite communication antenna transceiver array; Figure 3 This is a schematic diagram of the upward structure of the variable-pitch system of the satellite communication antenna receiving and transmitting array; Figure 4 This is a schematic diagram of the structure of the open antenna cover of the variable pitch system of the satellite communication antenna receiving and transmitting array; Figure 5 It is a schematic diagram of the three-dimensional structure of the module housing of the variable pitch system of the satellite communication antenna transceiver array; Figure 6 This is a three-dimensional structural diagram of the radiator of the variable pitch system of the satellite communication antenna transceiver array; Figure 7 Schematic diagram of the exploded structure of adding auxiliary frame to the variable pitch system of the satellite communication antenna transceiver array; Figure 8 It is a three-dimensional structural diagram of the auxiliary frame of the variable pitch system of the satellite communication antenna receiving and transmitting array; Fig. 9 For satellite communication antenna transceiver array variable distance system Figure 7 A schematic diagram of the enlarged structure at A in the middle; Fig.10 This is a schematic diagram of the installation structure of the movable frame of the variable-pitch system for the transceiver array of a satellite communication antenna.

[0019] The markings in the accompanying drawings are: 1. module housing; 2. antenna cover; 3. heat dissipation hole; 4. first mounting hole; 5. first radiator; 6. second radiator; 7. transmitting array surface; 8. receiving array surface; 9. bracket; 10. fan module; 11. mounting surface; 12. heat dissipation surface; 13. heat dissipation teeth; 14. air gathering port; 15. back cover; 16. through hole; 901. mounting part; 902. blocking part; 903. second mounting hole; 17. wind shield cover; 18. auxiliary frame; 19. fixed frame; 20. movable frame; 21. third mounting hole; 22. fourth mounting hole; 23. guide block; 24. long hole; 25. rack; 26. groove; 27. adjustment knob; 28. gear; 29. ​​second screw; 30. adjustment hole; 31. first screw. DETAILED DESCRIPTION

[0020] This specific implementation is a satellite communication antenna transceiver array variable pitch system and method, and its structural schematic diagram is as follows Figure 1-Figure 10 As shown, the system includes a module housing 1 and a radome 2, a plurality of heat dissipation holes 3 are provided on the outer side of the module housing 1, a plurality of first mounting holes 4 are provided on the upper surface edge of the module housing 1, a first radiator 5 is provided on the left first mounting hole 4, a second radiator 6 is provided on the right first mounting hole 4, a transmitting array surface 7 and a receiving array surface 8 are respectively provided on the upper surfaces of the first radiator 5 and the second radiator 6, the first radiator 5 and the second radiator 6 can move relative to each other, and the radome 2 is installed on the upper surface of the module housing 1; The bracket 9, the wind shield cover 17 and the two fan modules 10, the bracket 9 is used to form two independent air ducts in the module housing 1, the first radiator 5 is located inside the air duct on the left, the wind shield cover 17 and the second radiator 6 are located inside the air duct on the right, and the wind shield cover 17 is used to maintain a certain isolation distance between the emitting array surface 7 and the receiving array surface 8. The two fan modules 10 are installed on the left and right sides of the lower surface of the module housing 1 and discharge the heat of the first radiator 5 and the second radiator 6 from the heat dissipation holes 3 respectively.

[0021] like Figure 2-6 As shown, in this embodiment, the first radiator 5 and the second radiator 6 both have a mounting surface 11 and a heat dissipation surface 12, a plurality of heat dissipation teeth 13 are fixedly connected to the lower surface of the heat dissipation surface 12, the plurality of heat dissipation teeth 13 form an air gathering port 14 in the middle of the heat dissipation surface 12, the plurality of heat dissipation teeth 13 are arranged in a circular array from the air gathering port 14 to the outside, a rear cover 15 is fixedly connected to the lower surface of the module shell 1, two through holes 16 corresponding to the air gathering port 14 are provided on the left and right sides of the lower surfaces of the module shell 1 and the rear cover 15, and the two fan modules 10 are respectively installed inside the two through holes 16.

[0022] The fan module 10 is arranged in this way to blow the cold water toward the air gathering port 14 , and then flows along the gaps between the plurality of heat dissipation teeth 13 and is discharged from the heat dissipation holes 3 , thereby accelerating the heat dissipation performance of the first radiator 5 and the second radiator 6 .

[0023] like Figure 2 and Figure 4 As shown, in this embodiment, the bracket 9 includes a mounting portion 901 and a blocking portion 902, the front and rear ends of the mounting portion 901 are fixedly connected to the first mounting hole 4 in the middle, and a plurality of second mounting holes 903 are provided on the left and right sides of the mounting portion 901, one side of the blocking portion 902 is fixedly connected to the mounting portion 901, and the other side of the blocking portion 902 is in contact with the inner bottom of the module shell 1.

[0024] In this way, no gap will appear between the blocking portion 902 and the module housing 1, and the cavities on the left and right sides will not be connected, so that the module housing 1 is formed into two independent air ducts through the bracket 9.

[0025] like Figure 1-5 As shown, in this embodiment, the first radiator 5 is fixedly connected to the first mounting hole 4 and the second mounting hole 903 on the left side by screws, the second radiator 6 is fixedly connected to the first mounting hole 4 on the right side by screws, and the wind shield cover 17 is fixedly connected between the second radiator 6 and the second mounting hole 903 on the right side.

[0026] This arrangement can adjust the isolation distance between the transmitting and receiving arrays by adjusting the positions of the different first mounting holes 4 of the first radiator 5 and the second radiator 6 on the module housing 1. At this time, the bracket 9 is in contact with the first radiator 5, and the gap between the second radiator 6 and the mounting bracket 9 is achieved by installing wind shield covers 17 of different widths or different numbers to achieve sealing of the heat dissipation duct and torque change between the transmitting array 7 and the receiving array 8.

[0027] like Figure 7-10 As shown, in the present embodiment, an auxiliary frame 18 is fixedly connected to a plurality of first mounting holes 4 by screws, the front and rear ends of the mounting portion 901 are fixedly connected to the front and rear inner walls of the auxiliary frame 18, a fixed frame 19 and a movable frame 20 are respectively arranged on the left and right sides of the upper surface of the auxiliary frame 18, two wind shield covers 17 are respectively fixedly connected to the left and right sides of the movable frame 20, the fixed frame 19 is fixedly connected to the auxiliary frame 18 by a first screw 31, the movable frame 20 is slidably connected to the auxiliary frame 18, a third mounting hole 21 and a fourth mounting hole 22 are respectively provided at the edges of the fixed frame 19 and the movable frame 20, the first radiator 5 is fixedly connected to the third mounting hole 21 by screws, the second radiator 6 is fixedly connected to the fourth mounting hole 22 by screws, a plurality of guide blocks 23 are fixedly connected to the upper right surface of the auxiliary frame 18, a long hole 24 corresponding to the guide block 23 is provided on the movable frame 20, and the guide block 23 is slidably connected inside the long hole 24.

[0028] This arrangement enables the movable frame 20 to slide left and right through the cooperation of the guide block 23 and the long hole 24. At this time, the wind shield cover 17 on both sides is in contact with the auxiliary frame 18 and the mounting portion 901 to avoid air leakage, thereby adjusting the isolation distance between the transmitting and receiving array surfaces, realizing the sealing of the heat dissipation air duct and the torque change between the transmitting array surface 7 and the receiving array surface 8, and the adjustment distance is more precise.

[0029] like Fig. 9 and Fig.10 As shown, in this embodiment, a rack 25 is fixedly connected to the right side of the fixed frame 19, a groove 26 corresponding to the rack 25 is provided on the left upper surface of the windshield cover 17, an adjusting knob 27 is rotatably connected to the inner bottom wall of the groove 26, a gear 28 is fixedly connected to the outer surface of the adjusting knob 27, and the gear 28 is meshed with the rack 25, the movable frame 20 is fixedly connected to the auxiliary frame 18 by a second screw 29, and an adjusting hole 30 corresponding to the second screw 29 is provided on the movable frame 20.

[0030] In this way, the second screw 29 is loosened to separate the movable frame 20 from the auxiliary frame 18, and then the adjusting knob 27 is turned with a tool to drive the gear 28 to rotate. During the rotation, the gear 28 cooperates with the rack 25 to move the windshield cover 17 and the movable frame 20. At this time, the second screw 29 moves in the adjusting hole 30, and then the second screw 29 is tightened to fix the movable frame 20 and the auxiliary frame 18 together, thereby making the torque change between the transmitting array surface 7 and the receiving array surface 8 more convenient.

[0031] A method for variable-range transmission and reception array of a satellite communication antenna comprises the following steps: Step 1: Install the transmitting array 7 on the first radiator 5, and the receiving array 8 on the second radiator 6. At this time, the transmitting and receiving antenna arrays are integrated with their respective radiators. When in use, the heat of the transmitting and receiving arrays is transferred to the bottom radiator through the thermal interface material. The transmitting and receiving arrays refer to the millimeter wave receiving array 8 and the transmitting array 7, which are used to receive and transmit signals. Step 2: After the bracket 9 is installed, the module housing 1 forms two independent air ducts. The first radiator 5 is installed on the multiple first mounting holes 4 on the left side by screws, and the second radiator 6 is installed on the multiple first mounting holes 4 on the right side. The isolation distance between the transmitting and receiving arrays is adjusted by adjusting the positions of the first radiator 5 and the second radiator 6 on the different first mounting holes 4 on the module housing 1. At this time, the bracket 9 is in contact with the first radiator 5, and the gap between the second radiator 6 and the mounting bracket 9 is achieved by installing windshield covers 17 of different widths or different numbers to achieve sealing of the heat dissipation air duct and torque change between the transmitting array 7 and the receiving array 8; Step three, install the fan module 10 on the left and right sides of the module housing 1, and respectively correspond to the positions of the first radiator 5 and the second radiator 6, and then drive the air flow through the heat dissipation fan in the fan module 10 to take away the system heat, so that the first radiator 5 and the second radiator 6 can dissipate heat reliably.

[0032] In this embodiment, a sufficiently large liquid cooling plate is used, and mounting positions at different distances are designed on the liquid cooling plate, which can also replace the above solution.

[0033] The technical solution provided by the present invention is to set an auxiliary frame 18, a fixed frame 19 and a movable frame 20, and install the first radiator 5 on the fixed frame 19, and the second radiator 6 on the movable frame 20. When changing the torque, the adjusting knob 27 is turned to drive the gear 28 to rotate. During the rotation, the gear 28 cooperates with the rack 25 to move the windshield cover 17 and the movable frame 20, and then tighten the second screw 29 to fix the movable frame 20 and the auxiliary frame 18 together, so that the torque change between the transmitting array surface 7 and the receiving array surface 8 is more convenient, and the distance adjustment is more precise.

[0034] All technical features in this embodiment can be freely combined according to actual needs.

[0035] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention may also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. A satellite communication antenna transceiver array variable pitch system, characterized by: The system comprises a module shell (1) and an antenna cover (2); the outer side of the module shell (1) is provided with a plurality of heat dissipation holes (3); the upper surface edge of the module shell (1) is provided with a plurality of first mounting holes (4); a first radiator (5) is arranged on the first mounting hole (4) on the left side; a second radiator (6) is arranged on the first mounting hole (4) on the right side; a transmitting array surface (7) and a receiving array surface (8) are respectively arranged on the upper surfaces of the first radiator (5) and the second radiator (6); the first radiator (5) and the second radiator (6) are movable relative to each other; and the antenna cover (2) is mounted on the upper surface of the module shell (1); A bracket (9), a windshield cover (17) and two fan modules (10), wherein the bracket (9) is used to enable the module housing (1) to form two independent air ducts, the first radiator (5) is located inside the air duct on the left side, the windshield cover (17) and the second radiator (6) are located inside the air duct on the right side, and the two fan modules (10) are installed on the left and right sides of the lower surface of the module housing (1) and respectively discharge the heat of the first radiator (5) and the second radiator (6) from the heat dissipation holes (3).

2. The satellite communication antenna transceiver array variable pitch system according to claim 1, characterized in that: The first heat sink (5) and the second heat sink (6) both have a mounting surface (11) and a heat dissipation surface (12); a plurality of heat dissipation teeth (13) are fixedly connected to the lower surface of the heat dissipation surface (12); the plurality of heat dissipation teeth (13) form an air gathering port (14) in the middle of the heat dissipation surface (12); and the plurality of heat dissipation teeth (13) are arranged in a circular array from the air gathering port (14) to the outside.

3. The satellite communication antenna transceiver array variable pitch system according to claim 2, characterized in that: The lower surface of the module shell (1) is fixedly connected to a rear cover (15); two through holes (16) corresponding to the air gathering port (14) are provided on the left and right sides of the lower surfaces of the module shell (1) and the rear cover (15); and the two fan modules (10) are respectively mounted inside the two through holes (16).

4. The satellite communication antenna transceiver array variable pitch system according to claim 3, characterized in that: The bracket (9) comprises a mounting portion (901) and a blocking portion (902); the front and rear ends of the mounting portion (901) are fixedly connected to a first mounting hole (4) in the middle; a plurality of second mounting holes (903) are provided on both left and right sides of the mounting portion (901); one side of the blocking portion (902) is fixedly connected to the mounting portion (901); and the other side of the blocking portion (902) is in contact with the inner bottom of the module housing (1).

5. The satellite communication antenna transceiver array variable pitch system according to claim 4, characterized in that: The first radiator (5) is fixedly connected to the first mounting hole (4) and the second mounting hole (903) on the left side by means of screws, the second radiator (6) is fixedly connected to the first mounting hole (4) on the right side by means of screws, and the windshield cover (17) is fixedly connected between the second radiator (6) and the second mounting hole (903) on the right side.

6. The satellite communication antenna transceiver array variable pitch system according to claim 4, characterized in that: An auxiliary frame (18) is fixedly connected to the plurality of first mounting holes (4) by means of screws, the front and rear ends of the mounting portion (901) are fixedly connected to the front and rear inner walls of the auxiliary frame (18), a fixed frame (19) and a movable frame (20) are respectively provided on the left and right sides of the upper surface of the auxiliary frame (18), the number of the windshield cover plates (17) is two and they are respectively fixedly connected to the left and right sides of the movable frame (20), the fixed frame (19) is fixedly connected to the auxiliary frame (18) by means of first screws (31), the movable frame (20) is slidably connected to the auxiliary frame (18), the edges of the fixed frame (19) and the movable frame (20) are respectively provided with a third mounting hole (21) and a fourth mounting hole (22), the first radiator (5) is fixedly connected to the third mounting hole (21) by means of screws, and the second radiator (6) is fixedly connected to the fourth mounting hole (22) by means of screws.

7. The satellite communication antenna transceiver array variable pitch system according to claim 6, characterized in that: A plurality of guide blocks (23) are fixedly connected to the upper right surface of the auxiliary frame (18); a long hole (24) corresponding to the guide block (23) is provided on the movable frame (20); and the guide block (23) is slidably connected inside the long hole (24).

8. The satellite communication antenna transceiver array variable pitch system according to claim 7, characterized in that: A rack (25) is fixedly connected to the right side of the fixed frame (19); a groove (26) corresponding to the rack (25) is provided on the left upper surface of the windshield cover (17); an adjusting knob (27) is rotatably connected to the inner bottom wall of the groove (26); a gear (28) is fixedly connected to the outer surface of the adjusting knob (27); and the gear (28) is meshingly connected to the rack (25).

9. The satellite communication antenna transceiver array variable pitch system according to claim 8, characterized in that: The movable frame (20) is fixedly connected to the auxiliary frame (18) via a second screw (29), and an adjustment hole (30) corresponding to the second screw (29) is provided on the movable frame (20).

10. A method for variable-range transmission and reception of a satellite communication antenna, characterized in that: The satellite communication antenna transceiver array variable pitch system comprising any one of claims 1 to 9 further comprises the following steps: Step 1: Install the transmitting array (7) on the first radiator (5), and install the receiving array (8) on the second radiator (6). At this time, the transmitting and receiving antenna arrays are assembled with their respective radiators. When in use, the heat of the transmitting and receiving arrays is transferred to the bottom radiator through the thermal interface material. Step 2: After the bracket (9) is installed, the module housing (1) forms two independent air ducts. The first radiator (5) is installed on the plurality of first mounting holes (4) on the left side by means of screws, and the second radiator (6) is installed on the plurality of first mounting holes (4) on the right side. The isolation distance between the transmitting and receiving arrays is adjusted by adjusting the positions of the first radiator (5) and the second radiator (6) on the different first mounting holes (4) on the module housing (1). At this time, the bracket (9) is in contact with the first radiator (5), and the gap between the second radiator (6) and the mounting bracket (9) is closed by installing windshield covers (17) of different widths or different numbers, so as to achieve sealing of the heat dissipation air duct and torque change between the transmitting array (7) and the receiving array (8); Step 3: Install the fan module (10) on the left and right sides of the module housing (1) so as to correspond to the positions of the first radiator (5) and the second radiator (6) respectively, and then drive the air flow through the heat dissipation fan in the fan module (10) to remove the system heat, so that the first radiator (5) and the second radiator (6) can dissipate heat reliably.

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