A Beidou high-precision anti-jamming array antenna

Abstract

The present invention discloses a Beidou high-precision anti-jamming array antenna, which relates to the technical field of antennas and includes a metal mounting plate. Four fixing columns I are fixedly connected to the upper surfaces of the front, rear, left, and right directions of the metal mounting plate. One B-band unit antenna is clamped outside each four fixing columns I. Four fixing columns II are fixedly connected between every two of the B-band unit antennas and on the upper surface of the metal mounting plate. First, when the air extraction pump is controlled to start, it can drive the middle air extraction pipe to extract air. The air extraction of the middle air extraction pipe will first drive the middle heat dissipation cavity to extract air. The air extraction of the middle heat dissipation cavity will synchronously extract the heat generated by multiple groups of array antennas, thus greatly improving the heat dissipation effect of the array antennas and at the same time increasing the service life of the array antennas. Then, the middle heat dissipation cavity can also drive the outer expansion suction holes to perform circular air extraction, and the circular air extraction of the outer expansion suction holes can prompt the entire array antenna to have a dust-proof function negative pressure air hood.

Description

Technical Field

[0001] The present invention relates to the technical field of antennas, and specifically to a Beidou high-precision anti-jamming array antenna. Background Art

[0002] The global satellite navigation system can provide three-dimensional coordinates, speed, and time information for global users all-weather, and its applications cover civilian and special applications. Among them, the antenna, as a component of the satellite signal transceiver system, is particularly crucial, which determines whether the entire system can work properly. During communication, there will be many complex signals interfering, thus affecting the normal communication of the system. Deliberate interference usually poses a greater threat, which poses a severe challenge to the anti-jamming ability of the antenna.

[0003] Currently, there are still some defects in the existing Beidou anti-jamming array antennas. For example, the patent with the application number CN202410041101.7 discloses a Beidou high-precision anti-jamming array antenna. Although this patent realizes the anti-jamming of the array antenna through an isolation suppressor and a choke baffle, the array antennas in this patent are all distributed on the surface of the metal reflection mounting array disc. In this way, the heat generated by multiple groups of array antennas will affect each other, and the heat dissipation effect is poor. As a result, it is easy to cause high-temperature damage to the unit antennas at different positions. Moreover, the installation and disassembly of the array antennas in this patent can only be achieved through specific tools, which will cause difficulties in the subsequent maintenance and replacement of the unit antennas, thus greatly reducing the practicability of the array antenna. Summary of the Invention

[0004] To solve the defects existing in the prior art, the present invention provides a Beidou high-precision anti-jamming array antenna.

[0005] To solve the above technical problems, the present invention provides the following technical solutions:

[0006] A Beidou high-precision anti-jamming array antenna of the present invention includes a metal mounting plate. Four fixing columns I are fixedly connected to the upper surfaces of the front, rear, left, and right four directions of the metal mounting plate. A B-band unit antenna is clamped outside each four fixing columns I. Four fixing columns II are fixedly connected between every two of the B-band unit antennas and on the upper surface of the metal mounting plate. An S-band unit antenna is clamped outside each four fixing columns II. Four fixing columns III are fixedly connected to the center of the upper surface of the metal mounting plate. A circular center antenna is clamped outside each four fixing columns II;

[0007] A choke frame plate is fixedly connected to the upper surface of the metal mounting plate outside the circular center antenna. Two curved isolation suppressor plates are fixedly connected to both sides of the four corners of the choke frame plate. Uniformly distributed blocking balls are fixedly connected to the side of each two isolation suppressor plates away from each other;

[0008] Positioning components are installed on the surfaces of the B-band unit antenna, S-band unit antenna, and circular center antenna respectively for fixing and disassembling the B-band unit antenna, S-band unit antenna, and circular center antenna. A heat dissipation component is fixedly installed on the lower surface of the metal mounting plate for synchronously dissipating heat from the B-band unit antenna, S-band unit antenna, and circular center antenna.

[0009] As a preferred technical solution of the present invention, a plurality of external mounting holes are provided at the periphery of the upper surface of the metal mounting plate, and wire mounting holes are provided on the surfaces of the rear ends of the positioning components.

[0010] As a preferred technical solution of the present invention, the positioning component includes four antenna fixing frames I. The outer ends of the four antenna fixing frames I away from each other are respectively clamped outside the upper ends of every four fixing columns I. A middle connecting plate is fixedly connected to the front surface of each of the four antenna fixing frames I close to each other. An antenna fixing frame II is clamped outside the upper ends of every four fixing columns II. An angular connecting plate is fixedly connected to the upper surface of each antenna fixing frame II close to the choke frame plate. Four middle-position angular brackets are clamped outside the upper ends of the four fixing columns III, and the outer ends of the four middle-position angular brackets away from each other are respectively fixedly connected to the upper ends of each angular connecting plate.

[0011] As a preferred technical solution of the present invention, a middle connecting plate is fixedly connected between every two angular connecting plates and one middle connecting plate therebetween.

[0012] As a preferred technical solution of the present invention, a right driving plate is fixedly connected to the right side surface of the lower end of the middle connecting plate on the right side. An auxiliary hole is provided on the upper surface of the metal mounting plate directly below the right end hole of the right driving plate. A right driving screw is threadedly connected to the inner cavity of the right end of the right driving plate. A lower protective shell is fixedly connected to the periphery of the lower surface of the metal mounting plate. A motor is fixedly installed on the bottom surface of the inner cavity of the lower protective shell, and the upper end of the motor is fixedly connected to the lower end of the right driving screw.

[0013] As a preferred technical solution of the present invention, a left fixing plate is fixedly connected to the left side surface of the lower end of the middle connecting plate on the left side. A left fixing column is inserted into the inner cavity of the left end of the left fixing plate, and the lower end of the left fixing column is fixedly connected to the upper surface of the metal mounting plate.

[0014] As a preferred technical solution of the present invention, the heat dissipation component includes a middle heat dissipation cavity, which is provided inside the metal mounting plate and is spiral. An external ring cavity is provided inside the periphery of the metal mounting plate, and the external ring cavity is communicated with the outer end of the middle heat dissipation cavity. A plurality of inclined outward suction holes are provided at the periphery of the upper surface of the metal mounting plate, and the lower end of each outward suction hole is communicated with the inner cavity of the external ring cavity.

[0015] As a preferred technical solution of the present invention, an air extraction pump is fixedly installed on the left side of the lower surface of the middle part of the metal mounting plate. The air extraction port at the right end of the air extraction pump and the starting end inside the middle heat dissipation cavity are both communicated with a middle extraction pipe. Sealing partitions are fixedly connected to the left sides of the opposite surfaces of the metal mounting plate and the lower protective shell.

[0016] As a preferred technical solution of the present invention, an air outlet is provided on the surface of the left end of the lower protective shell. Trajectory grooves are provided on the front and rear inner walls of the air outlet. An inner adjustment filter plate is inserted into the inner cavity of the trajectory groove. The left side of the front end of the inner adjustment filter plate is fixedly connected to a metal handle. A magnet is fixedly connected in front of the metal handle and on the surface of the left end of the lower protective shell.

[0017] As a preferred technical solution of the present invention, a secondary extraction pipe is communicated with the surface of the right end of the middle extraction pipe, and the left end of the secondary extraction pipe is in a horn shape. An air delivery pipe is communicated with the exhaust port at the left end of the air extraction pump and the right side surface of the sealing partition.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. For this Beidou high-precision anti-interference array antenna, through the arranged choke frame plate, isolation and suppression plate, and blocking ball, first of all, the choke frame plate can respectively isolate the interference caused by the B3-band unit antenna and the S-band unit antenna to the circular center antenna, thus greatly improving the anti-interference performance of the circular center antenna. Then, the isolation and suppression plate is in a curved shape, which can better isolate the mutual interference between the B3-band unit antenna and the S-band unit antenna. Compared with a straight isolation and suppression plate, it isolates signals better and further improves the anti-interference performance of the entire array antenna. Finally, the blocking ball can effectively absorb the interfering signals, so that the stability of the B3-band unit antenna and the S-band unit antenna during operation is greatly improved.

[0020] 2. The Beidou high-precision anti-jamming array antenna, through the set positioning component, first controls the motor to rotate forward, which can drive the right driving screw to rotate forward. The forward rotation of the right driving screw can drive the right driving plate to move downward. The downward movement of the right driving plate can drive the middle follower plate and the middle connecting plate on the right side to move downward simultaneously. The downward movement of the middle connecting plate can drive multiple middle follower plates and corner follower plates to move downward simultaneously. The simultaneous downward movement of multiple middle follower plates and corner follower plates can drive multiple antenna fixing frames one, antenna fixing frames two, and the middle-positioned corner frame to move downward simultaneously. When the bottoms of the antenna fixing frames one, antenna fixing frames two, and the middle-positioned corner frame are in full contact with the upper surfaces of the B3-band unit antenna, S-band unit antenna, and circular center antenna respectively, the clamping and fixing of multiple groups of array antennas are quickly completed at this time, and the installation of the array antennas is thus quickly completed. Then, controlling the motor to rotate in reverse can drive the antenna fixing frames one, antenna fixing frames two, and the middle-positioned corner frame to move upward simultaneously. When the antenna fixing frames one, antenna fixing frames two, and the middle-positioned corner frame are separated from the surfaces of the first fixing column, the second fixing column, and the third fixing column respectively, the disassembly of multiple groups of array antennas can be quickly completed at this time, which facilitates the staff to quickly complete the repair and replacement of the corresponding array antennas. Moreover, this replacement method saves time and effort and greatly improves the practicability of the array antennas.

[0021] 3. The Beidou high-precision anti-jamming array antenna, through the set heat dissipation component, first controls the air extraction pump to start, which can drive the middle air extraction pipe to extract air. The air extraction of the middle air extraction pipe will first drive the middle-positioned heat dissipation cavity to extract air. The air extraction of the middle-positioned heat dissipation cavity will synchronously extract the heat generated by multiple groups of array antennas, thus greatly improving the heat dissipation effect of the array antennas and simultaneously increasing the service life of the array antennas. Then, the middle-positioned heat dissipation cavity can also drive the outward-expanded suction holes to perform annular air extraction. The annular air extraction of the outward-expanded suction holes can enable the entire array antenna to have a dust-proof negative pressure air hood. The dust extracted by the outward-expanded suction holes will be transmitted to the inside of the air transmission pipe through the external annular cavity and the middle-positioned heat dissipation cavity. The air transmission pipe will then transmit the dust to the chamber isolated by the sealing partition plate, and then the dust can be filtered into the chamber isolated by the sealing partition plate through the internal adjustment filter plate, and finally clean gas is discharged from the air outlet. In this way, the entire array antenna is enabled to have a dust-proof function, and at the same time, the environmental protection of the entire array antenna is further improved, so that the use experience of the entire array antenna is greatly improved. Description of the Drawings

[0022] The drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention. In the drawings:

[0023] Figure 1 is a schematic structural diagram of a Beidou high-precision anti-jamming array antenna of the present invention;

[0024] Figure 2It is the top view of a Beidou high-precision anti-jamming array antenna of the present invention;

[0025] Figure 3 It is the schematic structural diagram of a Beidou high-precision anti-jamming array antenna from the right side view of the present invention;

[0026] Figure 4 It is the front cross-sectional view of a Beidou high-precision anti-jamming array antenna of the present invention;

[0027] Figure 5 It is a Beidou high-precision anti-jamming array antenna of the present invention Figure 4 of the three-dimensional view;

[0028] Figure 6 It is a Beidou high-precision anti-jamming array antenna of the present invention Figure 5 of the schematic structural diagram from the bottom view;

[0029] Figure 7 It is the side cross-sectional view of a Beidou high-precision anti-jamming array antenna of the present invention;

[0030] Figure 8 It is the horizontal cross-sectional view of the metal mounting plate of a Beidou high-precision anti-jamming array antenna of the present invention;

[0031] Figure 9 It is a Beidou high-precision anti-jamming array antenna of the present invention Figure 8 of the three-dimensional view;

[0032] Figure 10 It is the horizontal cross-sectional view of the internal tuning filter plate of a Beidou high-precision anti-jamming array antenna of the present invention;

[0033] Figure 11 It is a Beidou high-precision anti-jamming array antenna of the present invention Figure 10 of the three-dimensional view;

[0034] Figure 12 It is a Beidou high-precision anti-jamming array antenna of the present invention Figure 3 of the enlarged view at A;

[0035] Figure 13 It is a Beidou high-precision anti-jamming array antenna of the present invention Figure 4 of the enlarged view at B;

[0036] Figure 14 It is a Beidou high-precision anti-jamming array antenna of the present invention Figure 5 of the enlarged view at C;

[0037] Figure 15 It is a Beidou high-precision anti-jamming array antenna of the present invention Figure 7 of the enlarged view at D;

[0038] Figure 16 is an enlarged view of the E position in a Beidou high-precision anti-jamming array antenna of the present invention Figure 8 ;

[0039] Figure 17 is an enlarged view of the F position in a Beidou high-precision anti-jamming array antenna of the present invention Figure 10 ;

[0040] In the figure: 1, metal mounting plate; 2, fixing column 1; 3, B3-band unit antenna; 4, fixing column 2; 5, S-band unit antenna; 6, fixing column 3; 7, circular center antenna; 8, choke frame plate; 9, isolation suppression plate; 10, blocking ball; 11, positioning component; 1101, antenna fixing frame 1; 1102, middle slave plate; 1103, antenna fixing frame 2; 1104, corner slave plate; 1105, middle-position angle bracket; 1106, middle connecting plate; 1107, right driving plate; 1108, auxiliary hole; 1109, right driving screw; 1110, lower protective shell; 1111, motor; 1112, left fixing plate; 1113, left fixing column; 12, heat dissipation component; 1201, middle-position heat dissipation cavity; 1202, external ring cavity; 1203, outward-expanded suction hole; 1204, air extraction pump; 1205, middle extraction pipe; 1206, sealing partition plate; 1207, air outlet; 1208, track groove; 1209, internal adjustment filter plate; 1210, metal hand plate; 1211, magnetic block; 1212, auxiliary extraction pipe; 1213, air delivery pipe; 13, external mounting hole; 14, wire mounting hole. Specific embodiments

[0041] The following is a description of the preferred embodiments of the present invention with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only for the purpose of illustrating and explaining the present invention, and are not used to limit the present invention.

[0042] Embodiment: As Figure 1-17As shown in the figure, a Beidou high-precision anti-jamming array antenna of the present invention includes a metal mounting plate 1. Four fixing columns 1 are fixedly connected to the upper surfaces of the front, rear, left, and right sides of the metal mounting plate 1. A B3-band unit antenna 3 is clamped outside each four fixing columns 1. Four fixing columns 2 are fixedly connected between every two B3-band unit antennas 3 and on the upper surface of the metal mounting plate 1. An S-band unit antenna 5 is clamped outside each four fixing columns 2. Four fixing columns 3 are fixedly connected to the center of the upper surface of the metal mounting plate 1. A circular center antenna 7 is clamped outside each four fixing columns 3. A choke frame 8 is fixedly connected to the upper surface of the metal mounting plate 1 outside the circular center antenna 7. Two curved isolation and suppression plates 9 are fixedly connected to both sides of the four corners of the choke frame 8. Uniformly distributed blocking balls 10 are fixedly connected to the side of each two isolation and suppression plates 9 away from each other. Positioning components 11 are installed on the surfaces of the B3-band unit antenna 3, S-band unit antenna 5, and circular center antenna 7 for respectively fixing and disassembling the B3-band unit antenna 3, S-band unit antenna 5, and circular center antenna 7. A heat dissipation component 12 is fixedly installed on the lower surface of the metal mounting plate 1 for synchronously dissipating heat from the B3-band unit antenna 3, S-band unit antenna 5, and circular center antenna 7.

[0043] Among them, through the arranged choke frame 8, isolation and suppression plates 9, and blocking balls 10, first, the choke frame 8 can isolate the interference caused by the B3-band unit antenna 3 and S-band unit antenna 5 to the circular center antenna 7 respectively, thus greatly improving the anti-jamming performance of the circular center antenna 7. Then, the isolation and suppression plates 9 are curved, which can better isolate the mutual interference between the B3-band unit antenna 3 and S-band unit antenna 5. Compared with the straight isolation and suppression plates 9, the isolation of signals is better, and the anti-jamming performance of the entire array antenna is improved again. Finally, the blocking balls 10 can effectively absorb the interfering signals, so that the stability of the B3-band unit antenna 3 and S-band unit antenna 5 during operation is greatly improved.

[0044] A plurality of external mounting holes 13 are opened at the periphery of the upper surface of the metal mounting plate 1. A wire mounting hole 14 is opened on the surface of the rear end of the positioning component 11.

[0045] Among them, through the arranged external mounting holes 13 and wire mounting holes 14, first, the external mounting holes 13 can mount the metal mounting plate 1 to the mounting position of the Beidou antenna, and then the wire mounting holes 14 can facilitate the installation of wires.

[0046] The positioning component 11 includes four antenna fixing frames I 1101. One end of each of the four antenna fixing frames I 1101, which is away from each other, is respectively clamped to the outside of the upper ends of every four fixing columns I 2. A middle slave plate 1102 is fixedly connected to the front surface of each end of the four antenna fixing frames I 1101 that are close to each other. An antenna fixing frame II 1103 is clamped to the outside of the upper ends of every four fixing columns II 4. An angle slave plate 1104 is fixedly connected to the upper surface of each antenna fixing frame II 1103 near one end of the choke frame plate 8. Four middle-position angle brackets 1105 are clamped to the outside of the upper ends of four fixing columns III 6, and one end of each of the four middle-position angle brackets 1105, which is away from each other, is fixedly connected to the upper end of each angle slave plate 1104 respectively; A middle connecting plate 1106 is fixedly connected to each two angle slave plates 1104 and a middle slave plate 1102 therebetween; The right side of the lower end of the right middle slave plate 1102 is fixedly connected to a right driving plate 1107. An auxiliary hole 1108 is opened on the upper surface of the metal mounting plate 1 directly below the right end hole of the right driving plate 1107. A right driving screw 1109 is threadedly connected to the inner cavity of the right end of the right driving plate 1107. A lower housing 1110 is fixedly connected to the periphery of the lower surface of the metal mounting plate 1. A motor 1111 is fixedly installed on the bottom surface of the inner cavity of the lower housing 1110 at the right side, and the upper end of the motor 1111 is fixedly connected to the lower end of the right driving screw 1109; The left side of the lower end of the left middle slave plate 1102 is fixedly connected to a left fixing plate 1112. A left fixing column 1113 is inserted into the inner cavity of the left end of the left fixing plate 1112, and the lower end of the left fixing column 1113 is fixedly connected to the upper surface of the metal mounting plate 1.

[0047] Among them, through the set positioning component 11, first controlling the forward rotation of the motor 1111 can drive the right driving screw 1109 to rotate forward. The forward rotation of the right driving screw 1109 can drive the right driving plate 1107 to move downward. The downward movement of the right driving plate 1107 can drive the middle secondary plate 1102 and the middle connecting plate 1106 on the right side to move downward simultaneously. The downward movement of the middle connecting plate 1106 can drive multiple middle secondary plates 1102 and corner secondary plates 1104 to move downward simultaneously. The simultaneous downward movement of multiple middle secondary plates 1102 and corner secondary plates 1104 can drive multiple antenna fixing frames one 1101, antenna fixing frames two 1103, and middle-positioned corner brackets 1105 to move downward simultaneously. When the bottoms of the antenna fixing frames one 1101, antenna fixing frames two 1103, and middle-positioned corner brackets 1105 are in full contact with the upper surfaces of the B3-band unit antenna 3, S-band unit antenna 5, and circular center antenna 7 respectively, at this time, the clamping and fixing of multiple groups of array antennas are quickly completed, and thus the installation of the array antennas is quickly completed. Then, controlling the reverse rotation of the motor 1111 can drive the antenna fixing frames one 1101, antenna fixing frames two 1103, and middle-positioned corner brackets 1105 to move upward simultaneously. When the antenna fixing frames one 1101, antenna fixing frames two 1103, and middle-positioned corner brackets 1105 are separated from the surfaces of the first fixing column 2, the second fixing column 4, and the third fixing column 6 respectively, at this time, the disassembly of multiple groups of array antennas can be quickly completed, so as to facilitate the staff to quickly complete the repair and replacement of the corresponding array antennas. Moreover, this replacement method saves time and effort and greatly improves the practicability of the array antennas.

[0048] The heat dissipation component 12 includes a central heat dissipation cavity 1201, which is arranged in a spiral shape inside the metal mounting plate 1. An external annular cavity 1202 is formed inside the periphery of the metal mounting plate 1, and the external annular cavity 1202 is communicated with the end of the outer side of the central heat dissipation cavity 1201. A plurality of inclined outwardly expanding suction holes 1203 are formed at the periphery of the upper surface of the metal mounting plate 1, and the lower end of each outwardly expanding suction hole 1203 is communicated with the inner cavity of the external annular cavity 1202. A suction pump 1204 is fixedly installed on the left side of the lower surface of the middle part of the metal mounting plate 1. The suction port at the right end of the suction pump 1204 and the starting end of the inner side of the central heat dissipation cavity 1201 are both communicated with a middle suction pipe 1205. Sealing partitions 1206 are fixedly connected to the left sides of the opposite surfaces of the metal mounting plate 1 and the lower housing 1110. An air outlet 1207 is formed on the surface of the left end of the lower housing 1110. Trajectory grooves 1208 are formed on the front and rear inner walls of the air outlet 1207. An internal adjustment filter plate 1209 is inserted into the inner cavity of the trajectory groove 1208. A metal handle 1210 is fixedly connected to the left side surface of the front end of the internal adjustment filter plate 1209. A magnet 1211 is fixedly connected in front of the metal handle 1210 and on the surface of the left end of the lower housing 1110. A secondary suction pipe 1212 is communicated with the surface of the right end of the middle suction pipe 1205, and the left end of the secondary suction pipe 1212 is in a horn shape. An air delivery pipe 1213 is communicated with the exhaust port at the left end of the suction pump 1204 and the right side surface of the sealing partition 1206.

[0049] Among them, through the set heat dissipation component 12, first, controlling the start of the suction pump 1204 can drive the middle suction pipe 1205 to pump air. The air pumping of the middle suction pipe 1205 will first drive the central heat dissipation cavity 1201 to pump air. The air pumping of the central heat dissipation cavity 1201 will synchronously extract the heat generated by multiple groups of array antennas, thus greatly improving the heat dissipation effect of the array antennas and at the same time increasing the service life of the array antennas. Then, the central heat dissipation cavity 1201 can also drive the outwardly expanding suction holes 1203 to perform annular air pumping. The annular air pumping of the outwardly expanding suction holes 1203 can enable the entire array antenna to have a negative pressure air hood with a dust-proof function. The dust extracted by the outwardly expanding suction holes 1203 will be transmitted to the inside of the air delivery pipe 1213 through the external annular cavity 1202 and the central heat dissipation cavity 1201. The air delivery pipe 1213 will then transmit the dust to the chamber isolated by the sealing partition 1206, and then the internal adjustment filter plate 1209 can filter the dust into the chamber isolated by the sealing partition 1206, and finally clean gas is discharged from the air outlet 1207. At the same time, it also further improves the environmental protection of the entire array antenna, so that the use experience of the entire array antenna is greatly improved.

[0050] During operation, first controlling the forward rotation of the motor 1111 can drive the right drive screw 1109 to rotate forward. The forward rotation of the right drive screw 1109 can drive the right drive plate 1107 to move downward. The downward movement of the right drive plate 1107 can drive the middle follower plate 1102 and the middle connecting plate 1106 on the right side to move downward simultaneously. The downward movement of the middle connecting plate 1106 can drive multiple middle follower plates 1102 and corner follower plates 1104 to move downward simultaneously. The simultaneous downward movement of multiple middle follower plates 1102 and corner follower plates 1104 can drive multiple antenna fixing frames one 1101, antenna fixing frames two 1103, and middle-positioned corner brackets 1105 to move downward simultaneously. When the bottoms of the antenna fixing frames one 1101, antenna fixing frames two 1103, and middle-positioned corner brackets 1105 are in full contact with the upper surfaces of the B3-band unit antenna 3, S-band unit antenna 5, and circular center antenna 7 respectively, at this time, the clamping and fixing of multiple groups of array antennas are quickly completed, and thus the installation of the array antennas is quickly completed. Then, controlling the reverse rotation of the motor 1111 can drive the antenna fixing frames one 1101, antenna fixing frames two 1103, and middle-positioned corner brackets 1105 to move upward simultaneously. When the antenna fixing frames one 1101, antenna fixing frames two 1103, and middle-positioned corner brackets 1105 are separated from the surfaces of the first fixing column 2, the second fixing column 4, and the third fixing column 6 respectively, at this time, the disassembly of multiple groups of array antennas can be quickly completed, so as to facilitate the staff to quickly complete the repair and replacement of the corresponding array antennas;

[0051] Heat dissipation of the array antenna: First, controlling the start of the air extraction pump 1204 can drive the middle air extraction pipe 1205 to extract air. The air extraction of the middle air extraction pipe 1205 will first drive the middle-positioned heat dissipation cavity 1201 to extract air. The air extraction of the middle-positioned heat dissipation cavity 1201 will synchronously extract the heat generated by multiple groups of array antennas, which greatly improves the heat dissipation effect of the array antenna and at the same time improves the service life of the array antenna. Then, the middle-positioned heat dissipation cavity 1201 can also drive the outward-expanded suction holes 1203 to perform annular air extraction. The annular air extraction of the outward-expanded suction holes 1203 will form an intersection upward, so that a negative pressure air hood with dust-proof function can be formed for the entire array antenna. The dust extracted by the outward-expanded suction holes 1203 will be transmitted to the inside of the air transmission pipe 1213 through the external annular cavity 1202 and the middle-positioned heat dissipation cavity 1201. The air transmission pipe 1213 will then transmit the dust to the chamber isolated by the sealing partition plate 1206, and the dust can be filtered into the chamber isolated by the sealing partition plate 1206 through the internal adjustment filter plate 1209. Finally, clean gas is discharged from the air outlet 1207. Then, pulling the metal hand plate 1210 backward can drive the internal adjustment filter plate 1209 to be in an open state. At this time, the air outlet 1207 can clean out the dust in the left chamber of the sealing partition plate 1206. Then, close the internal adjustment filter plate 1209 again and make the metal hand plate 1210 adsorb on the surface of the magnet 1211 again. At this time, the dust collection structure can be continuously used.

[0052] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A Beidou high-precision anti-interference array antenna, comprising a metal plate (1), characterized in that: Four fixed columns (2) are fixedly connected to the upper surface of the metal plate (1) in the four directions of front, back, left and right. A B3 frequency band unit antenna (3) is clamped to the outside of each of the four fixed columns (2). Four fixed columns (4) are fixedly connected between each two of the B3 frequency band unit antennas (3) and located on the upper surface of the metal plate (1). An S frequency band unit antenna (5) is clamped to the outside of each of the four fixed columns (2). Four fixed columns (6) are fixedly connected at the center of the upper surface of the metal plate (1). A circular central antenna (7) is clamped to the outside of each of the four fixed columns (6). A choke frame plate (8) is fixedly connected to the outer side of the circular center antenna (7) and located on the upper surface of the metal mounting plate (1); two curved isolation and suppression plates (9) are fixedly connected to both sides at the four corners of the choke frame plate (8); and evenly distributed obstruction balls (10) are fixedly connected to the sides of each of the two isolation and suppression plates (9) that are away from each other; The surfaces of the B3 frequency band unit antenna (3), the S frequency band unit antenna (5) and the circular center antenna (7) are all installed with positioning components (11) for respectively fixing and removing the B3 frequency band unit antenna (3), the S frequency band unit antenna (5) and the circular center antenna (7); the lower surface of the metal mounting plate (1) is fixedly installed with a heat dissipation component (12) for synchronously dissipating heat from the B3 frequency band unit antenna (3), the S frequency band unit antenna (5) and the circular center antenna (7); The positioning assembly (11) comprises four antenna fixing frames (1101), the ends of the four antenna fixing frames (1101) being away from each other are respectively clamped to the outside of the upper end of each of the four fixed columns (2), the front faces of the ends of the four antenna fixing frames (1101) being close to each other are fixedly connected to a middle follower plate (1102), the outer surfaces of the upper ends of each of the four fixed columns (4) are clamped to an antenna fixing frame (1103), the upper surface of each of the ends of the antenna fixing frames (1103) close to the choke frame plate (8) is fixedly connected to an angle follower plate (1104), the outer surfaces of the upper ends of the four fixed columns (6) are clamped to four central angle brackets (1105), and the ends of the four central angle brackets (1105) being away from each other are respectively fixedly connected to the upper end of each angle follower plate (1104); A right drive plate (1107) is fixedly connected to the right side surface of the lower end of the right middle follower plate (1102); an auxiliary hole (1108) is provided directly below the right end hole of the right drive plate (1107) and on the upper surface of the metal plate (1); a right drive screw (1109) is threadedly connected to the inner cavity of the right end of the right drive plate (1107); a lower protective shell (1110) is fixedly connected to the periphery of the lower surface of the metal plate (1); a motor (1111) is fixedly installed on the right side of the bottom surface of the inner cavity of the lower protective shell (1110), and the upper end of the motor (1111) is fixedly connected to the lower end of the right drive screw (1109).

2. A Beidou high-precision anti-interference array antenna according to claim 1, characterized in that: A plurality of external mounting holes (13) are provided at the periphery of the upper surface of the metal mounting plate (1), and a wire mounting hole (14) is provided on the surface of the rear end of the positioning component (11).

3. The Beidou high-precision anti-interference array antenna according to claim 1, characterized in that: Each of the two corner follower plates (1104) and a middle follower plate (1102) therebetween is fixedly connected to a middle connecting plate (1106).

4. The Beidou high-precision anti-interference array antenna according to claim 3, characterized in that: A left fixing plate (1112) is fixedly connected to the left side surface of the lower end of the left middle follower plate (1102), a left fixing column (1113) is inserted into the inner cavity of the left end of the left fixing plate (1112), and the lower end of the left fixing column (1113) is fixedly connected to the upper surface of the metal tray (1).

5. A Beidou high-precision anti-interference array antenna according to claim 4, characterized in that: The heat dissipation component (12) comprises a central heat dissipation cavity (1201), the central heat dissipation cavity (1201) being arranged inside the metal plate (1) and being spiral-shaped, an external annular cavity (1202) being arranged inside the periphery of the metal plate (1), and the external annular cavity (1202) being connected to the end of the outer side of the central heat dissipation cavity (1201), a plurality of inclined external expansion suction holes (1203) being arranged on the periphery of the upper surface of the metal plate (1), and the lower end of each external expansion suction hole (1203) being connected to the inner cavity of the external annular cavity (1202).

6. A Beidou high-precision anti-interference array antenna according to claim 5, characterized in that: An air pump (1204) is fixedly mounted on the left side of the lower surface of the middle part of the metal tray (1), and the air outlet at the right end of the air pump (1204) and the starting end of the inner side of the central heat dissipation cavity (1201) are both connected to a central air extraction pipe (1205), and a sealing baffle (1206) is fixedly connected to the left side of the metal tray (1) opposite to the lower protective shell (1110).

7. The Beidou high-precision anti-interference array antenna according to claim 6, characterized in that: An air outlet (1207) is provided on the surface of the left end of the lower protective shell (1110), and a track groove (1208) is provided on the front and rear inner walls of the air outlet (1207). An inner adjustment filter plate (1209) is inserted into the inner cavity of the track groove (1208), and a metal hand plate (1210) is fixedly connected to the left side surface of the front end of the inner adjustment filter plate (1209), and a magnetic block (1211) is fixedly connected to the surface in front of the metal hand plate (1210) and located at the left end of the lower protective shell (1110).

8. The Beidou high-precision anti-interference array antenna according to claim 7, characterized in that: The surface of the right end of the middle suction tube (1205) is connected to the auxiliary suction tube (1212), and the left end of the auxiliary suction tube (1212) is trumpet-shaped. The exhaust port at the left end of the suction pump (1204) and the right side surface of the sealing partition (1206) are both connected to the air supply pipe (1213).

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