A phased array antenna

Abstract

This invention relates to the field of antenna technology, and more particularly to a phased array antenna, comprising: a fixed ring, a flexible mounting plate, antennas, and a mounting base. Several antennas are arranged, with the antenna array distributed on the outer end face of the flexible mounting plate. The flexible mounting plate is fixedly connected to the inner ring of the fixed ring and is elastic. The inner end of the fixed ring is fixedly connected to the mounting base via a connecting mechanism. A spherical shell is disposed between the mounting base and the flexible mounting plate. The mounting base is provided with a driving component for driving the spherical shell to move axially along the fixed ring. By the spherical shell pressing against the inner side of the flexible mounting plate, the outer end face of the flexible mounting plate bulges outward, increasing the signal reception range of the antenna. This invention provides a phased array antenna capable of increasing the signal reception range.

Description

Technical Field

[0001] This invention relates to the field of antenna technology, and more particularly to a phased array antenna. Background Technology

[0002] A phased array antenna is an antenna that changes its radiation pattern shape by controlling the feed phase of the radiating elements in the array. Controlling the phase can change the direction of the maximum value of the antenna radiation pattern, thereby achieving beam scanning.

[0003] Phased array antennas are widely used in various applications such as reconnaissance, jamming, detection, and communication. Currently, the shape of phased array antennas is often fixed. Therefore, when adapting to different scenarios, the shape needs to be customized according to the usage requirements, which increases the production cost. Moreover, the customized shape often limits the function of the phased array antenna. If it is necessary to increase the signal reception range, an additional antenna must be assembled to achieve the purpose of increasing the signal reception range. Therefore, the practicality of customized antennas is relatively limited, and they do not have the function of increasing the signal reception range at any time. Summary of the Invention

[0004] The purpose of this invention is to provide a phased array antenna to solve the technical problems existing in the background art.

[0005] To achieve the above objectives, the technical solution of the present invention is as follows:

[0006] A phased array antenna includes: a fixed ring, a flexible mounting plate, antennas, and a mounting base. Several antennas are arranged in an array distributed on the outer end face of the flexible mounting plate. The flexible mounting plate is fixedly connected to the inner ring of the fixed ring and is elastic. The inner end of the fixed ring is fixedly connected to the mounting base via a connecting mechanism. A spherical shell is disposed between the mounting base and the flexible mounting plate. The mounting base is provided with a driving component for driving the spherical shell to move axially along the fixed ring. By the spherical shell pressing against the inner side of the flexible mounting plate, the outer end face of the flexible mounting plate bulges outward, increasing the signal reception range of the antenna.

[0007] Furthermore, it also includes: an embedding ring, wherein an embedding groove is provided on the inner wall of the fixing ring, the inner wall of the embedding ring is fixedly connected to the outer wall of the flexible mounting plate, and the embedding ring is embedded and fixed in the embedding groove.

[0008] Furthermore, the connecting mechanism comprises several connecting components arranged in a circular array. Each connecting component includes: a first mounting bracket, a first hinge shaft, an L-shaped connecting rod, a second hinge shaft, and a second mounting bracket. The first mounting bracket is fixedly connected to the inner end of the fixed ring. One end of the first mounting bracket is hinged to the first L-shaped connecting rod via the first hinge shaft. The other end of the L-shaped connecting rod is hinged to the second mounting bracket via the second hinge shaft. The second mounting bracket is fixedly connected to the outer wall of the mounting base.

[0009] Furthermore, the drive assembly includes: a screw, a mounting ring, a disc, a driven gear, a drive gear, a gear shaft, a pin, and a servo motor. The mounting base has a through hole in its center and a mounting cavity inside. The screw slides through the through hole. One end of the screw is fixedly connected to one end of the disc via the mounting ring. The disc is fixedly connected to the open end of the spherical shell. Both the driven gear and the drive gear are disposed within the mounting cavity and mesh with each other. The screw passes through and is threadedly connected to the shaft of the driven gear. One end of the drive gear is fixedly connected to the gear shaft via a pin. The other end of the gear shaft movably protrudes from the mounting base and is fixedly connected to the output end of the servo motor. The servo motor is fixedly mounted on the mounting base.

[0010] Furthermore, it also includes: telescopic rods, two of which are symmetrically arranged, with the fixed end and telescopic end of the telescopic rods respectively fixedly connected to the mounting base and the disc, and the telescopic length of the telescopic rods being greater than or equal to the stroke of the disc.

[0011] Furthermore, it also includes a limiting block, which is fixedly connected to the other end of the screw.

[0012] Furthermore, it also includes: a sleeve, an I-shaped connecting plate, an outer cylinder, and a cylinder cover. The sleeve is fixedly connected to the mounting base on the side away from the spherical shell. Several T-shaped slots are evenly distributed on the outer wall of the sleeve. Several T-shaped slots are evenly distributed on one side of the inner wall of the outer cylinder. Several I-shaped connecting plates are provided, and each of the I-shaped connecting plates corresponds one-to-one with several T-shaped slots and several T-shaped slots. The two ends of the I-shaped connecting plates are slidably engaged in the T-shaped slots and T-shaped slots at their corresponding positions. The inner wall of the other end of the outer cylinder is pressed against the outer wall of the fixing ring. A cylinder cover is also threadedly connected to the outer wall of the outer cylinder on the side of the outer cylinder near the I-shaped connecting plate.

[0013] Furthermore, a pitch adjustment mechanism is connected to the outer cylinder. The pitch adjustment mechanism includes: a connecting lug, a connecting shaft, a bearing, a bracket, a bearing cap, a pitch motor, and a transition bracket. Two connecting lugs, a connecting shaft, a bearing, and a bracket are provided. The two connecting lugs are symmetrically fixedly connected to both sides of the outer wall of the outer cylinder. A connecting shaft is fixedly connected to the outer end of the connecting lug. The connecting shaft is rotatably connected to the bracket through the bearing. One connecting shaft is fixedly connected to the output end of the pitch motor. The pitch motor is fixedly installed on the bracket on the same side through the transition bracket. A bearing cap is fixedly connected to the upper outer end of the other bracket.

[0014] Furthermore, the two supports are equipped with orientation adjustment mechanisms at their bottom ends. The orientation adjustment mechanisms include a turntable, a fixed plate, an orientation motor, and a base. The turntable is fixedly connected to the bottom ends of the two supports. The fixed plate is fixedly connected to the bottom end of the turntable. The output end of the orientation motor is fixedly connected to the bottom end of the fixed plate. The orientation motor is fixedly mounted on the top center of the base.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. The drive component drives the disk to move the spherical shell along the fixed ring axis. When it is necessary to increase the signal receiving range of the phased array antenna, the spherical shell can be used to squeeze the inner side of the flexible mounting plate, thereby causing the outer end face of the flexible mounting plate to bulge outward and deform. This allows several array-distributed phased array antennas to be attached to the bulging surface, thus increasing the signal receiving range of the antenna.

[0017] 2. The pitch adjustment mechanism can control the orientation of the entire phased array antenna in the vertical plane, which is convenient for adjustment according to the direction of the signal and is beneficial for signal reception; the azimuth adjustment mechanism can control the orientation of the entire phased array antenna in the horizontal plane, which is convenient for adjustment according to the direction of the signal. Attached Figure Description

[0018] Figure 1 This is an external structural view of the present invention after the pitch adjustment mechanism and azimuth adjustment mechanism are installed;

[0019] Figure 2 This is a structural view of the present invention;

[0020] Figure 3 This is an isometric view of the present invention;

[0021] Figure 4 This is a transverse longitudinal sectional view of the invention at the telescopic rod;

[0022] Figure 5 This is a transverse longitudinal sectional view of the present invention after the pitch adjustment mechanism and azimuth adjustment mechanism are installed;

[0023] Figure 6 This invention is in Figure 5 A magnified view of a portion of point A in the middle;

[0024] Figure 7 This is a cross-sectional view of the drive gear after the pitch adjustment mechanism and azimuth adjustment mechanism of the present invention are installed;

[0025] Figure 8 This invention is in Figure 7 A magnified view of a portion of point B in the middle;

[0026] Figure 9 This is a connection view of the sleeve and the outer cylinder in this invention;

[0027] Figure 10 This is a longitudinal sectional view of the present invention after the pitch adjustment mechanism and azimuth adjustment mechanism are installed;

[0028] Figure 11 This is a rear-view view of the present invention after the pitch adjustment mechanism and azimuth adjustment mechanism are installed.

[0029] The labels in the attached diagram are as follows: 1-Fixing ring, 2-Embedded ring, 3-Flexible mounting plate, 4-Antenna, 5-Mounting bracket one, 6-Hinge shaft one, 7-L-shaped connecting rod, 8-Hinge shaft two, 9-Mounting bracket two, 10-Mounting seat, 11-Screw, 12-Mounting ring, 13-Disc, 14-Spherical shell, 15-Telescopic rod, 16-Limit stop, 17-Driven gear, 18-Drive gear, 19-Gear shaft, 20-Shaft pin, 21-Servo motor, 22-Sleeve, 23-I-shaped connecting plate, 24-Outer cylinder, 25-Cylinder cover, 26-Connecting ear, 27-Connecting shaft, 28-Bearing, 29-Bracket, 30-Bearing cover, 31-Pitch motor, 32-Transition bracket, 33-Turntable, 34-Fixing disc, 35-Azimuth motor, 36-Base. Detailed Implementation

[0030] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0031] See Figures 1-11 As shown, a phased array antenna includes: a fixed ring 1, a flexible mounting plate 3, antennas 4, and a mounting base 10. Several antennas 4 are arranged, and the antenna array is distributed on the outer end face of the flexible mounting plate 3. The flexible mounting plate 3 is fixedly connected to the inner ring of the fixed ring 1. The flexible mounting plate 3 is elastic. The inner end of the fixed ring 1 is fixedly connected to the mounting base 10 via a connecting mechanism. A spherical shell 14 is provided between the mounting base 10 and the flexible mounting plate 3. The mounting base 10 is provided with a driving component for driving the spherical shell 14 to move axially along the fixed ring 1. The spherical shell 14 presses against the inner side of the flexible mounting plate 3, thereby causing the outer end face of the flexible mounting plate 3 to bulge outwards, increasing the signal receiving range of the antenna 4.

[0032] In this embodiment, the phased array antenna further includes: an embedding ring 2, an embedding groove is provided on the inner wall of the fixing ring 1, the inner wall of the embedding ring 2 is fixedly connected to the outer wall of the flexible mounting plate 3, and the embedding ring 2 is embedded and fixed in the embedding groove.

[0033] In this embodiment, the connecting mechanism consists of several connecting components arranged in a circular array. The connecting components include: mounting bracket 5, hinge shaft 6, L-shaped connecting rod 7, hinge shaft 8, and mounting bracket 9. Mounting bracket 5 is fixedly connected to the inner end of the fixing ring 1. One end of the L-shaped connecting rod 7 is hinged to mounting bracket 5 via hinge shaft 6. The other end of the L-shaped connecting rod 7 is hinged to mounting bracket 9 via hinge shaft 8. Mounting bracket 9 is fixedly connected to the outer wall of the mounting base 10. The connecting mechanism can connect the fixing ring 1 and the mounting base 10 while maintaining sufficient space between them for the spherical shell 14 to move.

[0034] In this embodiment, the drive assembly includes: a screw 11, a mounting ring 12, a disc 13, a telescopic rod 15, a driven gear 17, a drive gear 18, a gear shaft 19, a pin 20, and a servo motor 21. A through hole is provided in the center of the mounting base 10, and a mounting cavity is provided inside the mounting base 10. The screw 11 slides through the through hole. One end of the screw 11 is fixedly connected to one end of the disc 13 via the mounting ring 12. The disc 13 is fixedly connected to the open end of the spherical shell 14. Both the driven gear 17 and the drive gear 18 are disposed within the mounting cavity and mesh with each other. The screw 11 passes through and is threadedly connected to the shaft of the driven gear 17. The drive gear 18 is fixedly connected to one end of the gear shaft 19 via the pin 20. The other end of the gear shaft 19 extends through the mounting base 10 and is fixedly connected to the output end of the servo motor 21. The servo motor 21 is fixedly mounted on the mounting base 10. Two telescopic rods 15 are symmetrically arranged. The fixed end and telescopic end of the telescopic rod 15 are fixedly connected to the mounting base 10 and the disc 13, respectively. The telescopic length of the telescopic rod 15 is greater than or equal to the stroke of the disc 13. The servo motor 21 drives the drive gear 18 to rotate, which in turn drives the driven gear 17 to rotate. The driven gear 17 drives the screw 11 to move axially, which in turn drives the spherical shell 14 to move axially along the fixed ring 1 through the disc 13. The spherical shell 14 presses the inner side of the flexible mounting plate 3, thereby causing the outer end face of the flexible mounting plate 3 to bulge outward and deform, increasing the signal receiving range of the antenna 4.

[0035] In this embodiment, the phased array antenna further includes a limiting block 16, which is fixedly connected to the other end of the screw 11. The limiting block 16 can limit the displacement of the end of the screw 11 away from the spherical shell 14 toward the mounting base 10.

[0036] In this embodiment, the phased array antenna further includes: a sleeve 22, an I-shaped connecting plate 23, an outer cylinder 24, and a cap 25. The sleeve 22 is fixedly connected to the mounting base 10 on the side away from the spherical shell 14. A plurality of T-shaped slots are evenly provided on the outer wall of the sleeve 22, and a plurality of T-shaped slots are evenly provided on one side of the inner wall of the outer cylinder 24. A plurality of I-shaped connecting plates 23 are provided, and the plurality of I-shaped connecting plates 23 correspond one-to-one with the plurality of T-shaped slots 1 and the plurality of T-shaped slots 22. The two ends of the I-shaped connecting plates 23 are respectively... The outer cylinder 24 is not slidably engaged in the T-shaped slot 1 and T-shaped slot 2 at the corresponding positions. The inner wall of the other end of the outer cylinder 24 is pressed against the outer wall of the fixing ring 1. The outer wall of the outer cylinder 24 near the I-shaped connecting plate 23 is also threaded with a cylinder cover 25. The outer cylinder 24 can effectively protect the spherical shell, the connecting mechanism and the drive assembly. At the same time, several I-shaped connecting plates 23 connect the sleeve 22 and the outer cylinder 24, so that the entire internal components of the sleeve can be supported by the outer cylinder 24 and the force is evenly distributed.

[0037] In this embodiment, a pitch adjustment mechanism is connected to the outer cylinder 24. The pitch adjustment mechanism includes: a connecting lug 26, a connecting shaft 27, a second bearing 28, a bracket 29, a bearing cap 30, a pitch motor 31, and a transition bracket 32. Two connecting lugs 26, two connecting shafts 27, two bearings 28, and two brackets 29 are provided. The two connecting lugs 26 are symmetrically fixedly connected to both sides of the outer wall of the outer cylinder 24. A connecting shaft 27 is fixedly connected to the outer end of the connecting lug 26. The connecting shaft 27 is rotatably connected to the bracket 29 via the second bearing 28. One connecting shaft 27 is fixedly connected to the output end of the pitch motor 31. The pitch motor 31 is fixedly mounted on the bracket 29 on the same side via the transition bracket 32. The upper outer end of the other bracket 29 is fixedly connected to... The system includes a bearing cap 30; two brackets 29 are equipped with azimuth adjustment mechanisms at their bottom ends, each comprising a turntable 33, a fixed plate 34, an azimuth motor 35, and a base 36. The turntable 33 is fixedly connected to the bottom ends of the two brackets 29, and the fixed plate 34 is fixedly connected to the bottom end of the turntable 33. The output end of the azimuth motor 35 is fixedly connected to the bottom end of the fixed plate 34, and the azimuth motor 35 is fixedly mounted on the top center of the base 36. The pitch adjustment mechanism allows control of the orientation of the entire phased array antenna in the vertical plane, facilitating adjustment based on the signal direction and improving signal reception. The azimuth adjustment mechanism also allows control of the orientation of the entire phased array antenna in the horizontal plane, facilitating adjustment based on the signal direction.

[0038] When using this phased array antenna, the entire phased array antenna is installed at the location where signal reception is required. Then, according to the direction of the signal, the azimuth adjustment mechanism and the elevation adjustment mechanism are adjusted respectively so that several antennas 4 face the direction of the signal. When it is necessary to increase the signal reception range, the servo motor 21 drives the drive gear 18 to rotate, which in turn drives the driven gear 17 to rotate. The driven gear 17 drives the screw 11 to move axially, which in turn drives the spherical shell 14 to move axially along the fixed ring 1 through the disc 13. The spherical shell 14 presses the inner side of the flexible mounting plate 3, thereby causing the outer end face of the flexible mounting plate 3 to bulge outward and deform, thus increasing the signal reception range of the antenna 4.

[0039] In the description of this invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", "top / bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0040] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any simple modifications, equivalent substitutions, and improvements made by those skilled in the art to the above embodiments without departing from the scope of the technical solution of the present invention, based on the technical essence of the present invention, shall still fall within the protection scope of the technical solution of the present invention.

Claims

1. A phased array antenna, characterized in that, include: The system comprises a fixed ring (1), a flexible mounting plate (3), an antenna (4), and a mounting base (10). The antenna (4) is provided in several units, and the antenna array is distributed on the outer end face of the flexible mounting plate (3). The flexible mounting plate (3) is fixedly connected to the inner ring of the fixed ring (1). The flexible mounting plate (3) is elastic. The inner end of the fixed ring (1) is fixedly connected to the mounting base (10) through a connecting mechanism. A spherical shell (14) is provided between the mounting base (10) and the flexible mounting plate (3). The mounting base (10) is provided with a driving component for driving the spherical shell (14) to move along the axial direction of the fixed ring (1). The spherical shell (14) squeezes the inner side of the flexible mounting plate (3), thereby causing the outer end face of the flexible mounting plate (3) to bulge outward and deform, thereby increasing the signal receiving range of the antenna (4). The connecting mechanism consists of several connecting components arranged in a circular array. The connecting components include: mounting bracket one (5), hinge shaft one (6), L-shaped connecting rod (7), hinge shaft two (8), and mounting bracket two (9). Mounting bracket one (5) is fixedly connected to the inner end of the fixing ring (1). Mounting bracket one (5) is hinged to one end of L-shaped connecting rod (7) through hinge shaft one (6). The other end of L-shaped connecting rod (7) is hinged to mounting bracket two (9) through hinge shaft two (8). Mounting bracket two (9) is fixedly connected to the outer wall of the mounting base (10). The drive assembly includes: a screw (11), a mounting ring (12), a disc (13), a driven gear (17), a drive gear (18), a gear shaft (19), a pin (20), and a servo motor (21). A through hole is provided in the center of the mounting base (10), and a mounting cavity is provided inside the mounting base (10). The screw (11) slides through the through hole. One end of the screw (11) is fixedly connected to one end of the disc (13) via the mounting ring (12). The disc (13) is fixedly connected to the opening of the spherical shell (14). At the end, the driven gear (17) and the driving gear (18) are both set in the mounting cavity. The driven gear (17) and the driving gear (18) mesh with each other. The screw (11) passes through and is threaded to the shaft of the driven gear (17). The driving gear (18) is fixedly connected to one end of the gear shaft (19) by the shaft pin (20). The other end of the gear shaft (19) moves out of the mounting base (10) and is fixedly connected to the output end of the servo motor (21). The servo motor (21) is fixedly mounted on the mounting base (10).

2. The phased array antenna according to claim 1, characterized in that: Also includes: An embedding ring (2) is provided on the inner wall of the fixing ring (1). The inner wall of the embedding ring (2) is fixedly connected to the outer wall of the flexible mounting plate (3). The embedding ring (2) is embedded and fixed in the embedding groove.

3. The phased array antenna according to claim 1, characterized in that: Also includes: Telescopic rod (15), two telescopic rods (15) are symmetrically arranged. The fixed end and telescopic end of the telescopic rod (15) are respectively fixedly connected to the mounting base (10) and the disc (13). The telescopic length of the telescopic rod (15) is greater than or equal to the stroke of the disc (13).

4. A phased array antenna according to claim 1, characterized in that: Also includes: A limiting block (16) is fixedly connected to the other end of the screw (11).

5. A phased array antenna according to claim 1, characterized in that: Also includes: The sleeve (22), the I-shaped connecting plate (23), the outer cylinder (24) and the cylinder cover (25) are fixedly connected to the mounting base (10) on the side away from the spherical shell (14). Several T-shaped slots are evenly opened on the outer wall of the sleeve (22). Several T-shaped slots are evenly opened on one side of the inner wall of the outer cylinder (24). Several I-shaped connecting plates (23) are provided. Several I-shaped connecting plates (23) correspond one-to-one with several T-shaped slots and several T-shaped slots. The two ends of the I-shaped connecting plates (23) are slidably engaged in the T-shaped slots and T-shaped slots at their corresponding positions. The inner wall of the other end of the outer cylinder (24) is pressed against the outer wall of the fixing ring (1). The cylinder cover (25) is also threadedly connected to the outer wall of the outer cylinder (24) on the side near the I-shaped connecting plate (23).

6. A phased array antenna according to claim 5, characterized in that: The outer cylinder (24) is connected to a pitch adjustment mechanism, which includes: a connecting lug (26), a connecting shaft (27), a bearing (28), a bracket (29), a bearing cap (30), a pitch motor (31), and a transition bracket (32). There are two connecting lugs (26), two connecting shafts (27), two bearings (28), and two brackets (29). The two connecting lugs (26) are symmetrically fixedly connected to both sides of the outer wall of the outer cylinder (24). The connecting shaft (27) is fixedly connected to the outer end of the connecting lug (26). The connecting shaft (27) is rotatably connected to the bracket (29) through the bearing (28). One of the connecting shafts (27) is fixedly connected to the output end of the pitch motor (31). The pitch motor (31) is fixedly installed on the bracket (29) on the same side through the transition bracket (32). The bearing cap (30) is fixedly connected to the upper outer end of the other bracket (29).

7. A phased array antenna according to claim 6, characterized in that: Two supports (29) are provided with orientation adjustment mechanisms at their bottom ends. The orientation adjustment mechanisms include a turntable (33), a fixed plate (34), an orientation motor (35), and a base (36). The turntable (33) is fixedly connected to the bottom ends of the two supports (29). The fixed plate (34) is fixedly connected to the bottom end of the turntable (33). The output end of the orientation motor (35) is fixedly connected to the bottom end of the fixed plate (34). The orientation motor (35) is fixedly mounted on the top center of the base (36).

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