A Luneburg lens antenna with electrically adjustable feed position and a Luneburg lens antenna assembly

Abstract

The present invention relates to a Luneburg lens antenna with electrically adjustable feed position, comprising a reflector, a feed, a Luneburg lens and a position adjustment mechanism; the position adjustment mechanism comprises a mounting plate, a motor, a guide rail, a slider, a connecting seat, a screw and a moving seat; the position of the mounting plate is relatively fixed to the position of the Luneburg lens; the guide rail is mounted on the mounting plate; both ends of the screw can be rotatably mounted on the mounting plate; the motor is fixed on the mounting plate, and the motor is used to drive the screw to rotate; a screw hole is provided on the moving seat, and the screw hole of the moving seat is threadedly connected with the screw; the reflector is arranged between the Luneburg lens and the guide rail; the slider is mounted on the reflector, and the slider is connected with the guide rail in a sliding fit; one end of the connecting seat is connected to the moving seat, and the other end is connected to the reflector; the feed is mounted on the side of the reflector facing the Luneburg lens. The present invention has the characteristics of good feed position adjustment stability, convenient assembly and low production cost. The present invention also relates to a Luneburg lens antenna group.

Description

Technical Field

[0001] The present invention relates to the technical field of communication equipment, in particular to a Luneburg lens antenna with electrically adjustable feed position. The present invention also relates to a Luneburg lens antenna group. Background Art

[0002] When the traditional Luneburg lens antenna needs to adjust its tilt angle to change the radiation angle of the feed source, it is necessary to arrange tower workers to climb the tower to adjust the pitch angle of the clamp on site to adapt to the best effect. This is labor-intensive and time-consuming. When encountering bad weather such as wind or snow, this adjustment method increases the difficulty of construction, and the manual adjustment method has large errors. In order to reduce the difficulty of the staff's work and avoid the staff having to climb the tower every time to adjust the antenna, there are now some Luneburg lens antennas on the market that can electrically adjust the feed position. This type of Luneburg lens antenna is generally like the technical solution described in the Chinese patent number 202020408992.2 applied by the applicant, named "A Luneburg Lens Electric Adjustment Antenna": including a feed source, a Luneburg lens, a mounting frame and a position adjustment mechanism; a spherical surface is formed on the Luneburg lens, and the Luneburg lens is relatively fixed to the mounting frame; the position adjustment mechanism includes a swing frame, A driving rod, a driving seat and a transmission device; the driving rod is rotatably mounted on the mounting frame; the transmission device is also mounted on the mounting frame, and the transmission device is used to drive the driving rod to rotate; the driving seat is connected to the driving rod, and the driving seat can move linearly along the driving rod through the rotation of the driving rod; the swing frame is between the mounting frame and the Luneburg lens, a swing rod is connected to the swing frame, and a rotating end that can rotate relative to the Luneburg lens is formed on the swing rod, so that the swing frame can swing relative to the center of the spherical surface of the Luneburg lens, the feed source is installed on the swing frame, and a connecting rod is hinged between the swing frame and the driving seat. This structure that realizes the feed source position adjustment by the swing of the swing frame has poor stability in adjustment, and the swing rod of the swing frame needs to be hinged and installed, which is not convenient for assembly. Based on the shortcomings of the existing Luneburg lens antenna, it is urgent to improve the structure of the existing Luneburg lens antenna. Summary of the invention

[0003] The object of the present invention is to provide a Luneburg lens antenna with electrically adjustable feed position, which has the advantages of simple structure, reasonable design, good feed position adjustment stability, easy assembly and low production cost.

[0004] The technical solution of the Luneburg lens antenna with electrically adjustable feed position is implemented as follows: a Luneburg lens antenna with electrically adjustable feed position, comprising a reflector, a feed, a Luneburg lens and a position adjustment mechanism; the characteristic is that the position adjustment mechanism comprises a mounting plate, a motor, a guide rail, a slider, a connecting seat, a screw and a moving seat; the position of the mounting plate is relatively fixed to the position of the Luneburg lens, and the side of the mounting plate facing the Luneburg lens is the mounting surface; the guide rail is mounted on the mounting plate, and the guide rail is between the mounting surface and the Luneburg lens; both ends of the screw can be rotatably mounted on the mounting plate, and the axis of the screw and the orthographic projection of the axis of the guide rail on the mounting surface are parallel to each other; the motor is fixed on the mounting plate, and the motor is used to drive the screw to rotate; a screw hole is provided on the moving seat, and the screw hole of the moving seat is threadedly connected to the screw; the reflector is arranged between the Luneburg lens and the guide rail; the slider is mounted on the reflector, and the slider is slidably connected to the guide rail; one end of the connecting seat is connected to the moving seat, and the other end of the connecting seat is connected to the reflector; the feed is mounted on the side of the reflector facing the Luneburg lens.

[0005] Furthermore, the position adjustment mechanism also includes a guide rod, both ends of which are mounted on the mounting plate, and the axis of the guide rod is parallel to the axis of the screw; the movable seat is provided with a guide portion, and the guide portion is provided with a guide hole, and the guide hole of the movable seat is mounted on the guide rod.

[0006] Furthermore, the guide rail includes a left guide rail and a right guide rail, and the left guide rail and the right guide rail are both provided with guide rail grooves along their axial directions; the motor and the screw are both located between the left guide rail and the right guide rail; the slider includes a left slider and a right slider, and the left slider and the right slider are both provided with sliding parts, the sliding part of the left slider is slidably matched with the guide rail groove of the left guide rail, and the sliding part of the right slider is slidably matched with the guide rail groove of the right guide rail.

[0007] Furthermore, the guide rail grooves on the left guide rail and the right guide rail are both linear structures, and the sliding parts on the left slider and the right slider are also linear structures; one end of the connecting seat is fixedly connected to the moving seat, and the other end of the connecting seat is fixedly connected to the reflective plate.

[0008] Furthermore, the cross-sections of the guide rail grooves on the left guide rail and the right guide rail are both inverted T-shaped structures, and the cross-sections of the sliding parts on the left slider and the right slider are also inverted T-shaped structures.

[0009] The beneficial effects of the Luneburg lens antenna with electrically adjustable feed position are as follows: the reflector of the Luneburg lens antenna with electrically adjustable feed position is slidable along the guide rail by a slider, so that the feed on the reflector can be adjusted relative to the Luneburg lens; when adjusting the position of the feed, the motor drives the screw to rotate, so that the moving seat on the screw moves linearly along the axis of the screw, so that the connecting seat on the moving seat can drive the reflector to move along the guide rail, so that the reflector can be displaced in a predetermined direction set by the shape of the guide rail, and the reflector is not adjusted relative to the Luneburg lens by a rotating shaft connection, so the operation stability is good and it is also very convenient to assemble, so that the Luneburg lens antenna with electrically adjustable feed position has the advantages of simple structure, reasonable design, good feed position adjustment stability, convenient assembly and low production cost.

[0010] The present invention also provides a Luneburg lens antenna group, which has the advantages of simple structure, reasonable design, high adjustment efficiency and easy use.

[0011] The technical solution of the present Luneburg lens antenna group is implemented as follows: a Luneburg lens antenna group includes a first Luneburg lens antenna and a plurality of second Luneburg lens antennas, the first Luneburg lens antenna and the plurality of second Luneburg lens antennas are arranged side by side in a straight line; its characteristic is that the first Luneburg lens antenna is the Luneburg lens antenna with electrically adjustable feed position as described in the aforementioned solution; the difference between each second Luneburg lens antenna and the first Luneburg lens antenna is that the second Luneburg lens antenna lacks a motor, a screw and a movable seat; the connecting seat of the first Luneburg lens antenna and the connecting seats of each second Luneburg lens antenna are fixed together by a rigid part.

[0012] The beneficial effects of the present Luneburg lens antenna group are as follows: when in use, the motor of the first Luneburg lens antenna drives its screw to rotate, so that the moving seat of the first Luneburg lens antenna moves along the screw, causing the connecting seat fixed to the moving seat on the first Luneburg lens antenna and the connecting seats of each second Luneburg lens antenna to move simultaneously, and the connecting seats of the first Luneburg lens antenna and the second Luneburg lens antenna are respectively connected to the reflecting plate, and the reflecting plates of the first Luneburg lens antenna and the second Luneburg lens antenna are respectively equipped with feed sources, thereby achieving the feed sources of multiple Luneburg lens antennas can be linked to adjust their positions, so that the present Luneburg lens antenna group has the advantages of simple structure, reasonable design, high adjustment efficiency and easy use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of Example 1.

[0014] Figure 2 This is a schematic diagram of the structure of Example 1 after the outer shell is removed.

[0015] Figure 3This is a schematic diagram of the disassembly and assembly structure of the reflector and position adjustment mechanism of Example 1.

[0016] Figure 4 Schematic diagram of the disassembly and assembly structure of the cover and Luneburg lens of Example 1.

[0017] Figure 5 This is a schematic diagram of the structure of the reflector and position adjustment mechanism of Example 2 after being assembled.

[0018] Figure 6 This is a schematic diagram of the disassembly and assembly structure of the reflector and position adjustment mechanism of Example 2.

[0019] Figure 7 This is a schematic structural diagram of the connecting socket of Example 3.

[0020] Figure 8 This is a schematic diagram of the structure of Example 4.

[0021] Fig. 9 This is a schematic diagram of the structure of Example 5.

[0022] Description of reference numerals: 1-reflector; 2-feed source; 3-Luneburg lens; 4-position adjustment mechanism; 41-mounting plate; 411-mounting surface; 42-motor; 43-guide rail; 431-left guide rail; 432-right guide rail; 433-guide rail groove; 44-slider; 441-left slider; 442-right slider; 443-sliding part; 45-connecting seat; 46-screw rod; 47-moving seat; 471-guide part; 48-guide rod; 5-cover; 51-upper half shell; 511-upper fixing ring; 52-lower half shell; 521-lower fixing ring; 6-bracket; 61-fixing ear; 7-housing;

[0023] 8-left guide rail; 9-right guide rail; 10-left slider; 20-right slider; 30-sliding part; 40-connecting seat; 401-pushing long hole; 50-moving seat; 60-screw; 70-reflecting plate; 701-movable hole; 702-pushing rod;

[0024] 80-connecting seat; 90-upper mounting seat; 901-upper recess; 100-lower mounting seat; 1001-lower recess; 200-pushing long hole;

[0025] 300-first type Luneburg lens antenna; 3001-motor; 3002-screw; 3003-moving seat; 400-second type Luneburg lens antenna; 500-connecting seat; 600-rigid part; 700-reflector; 800-feed source;

[0026] 900-the first type of Luneburg lens antenna; 9001-motor; 9002-screw; 1000-the second type of Luneburg lens antenna; 2000-moving seat; 3000-connecting seat; 4000-reflecting plate; 5000-feed source. DETAILED DESCRIPTION

[0027] Example 1

[0028] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, a Luneburg lens antenna with electrically adjustable feed position of the present embodiment comprises a reflector 1, a feed 2, a Luneburg lens 3 and a position adjustment mechanism 4; the position adjustment mechanism 4 comprises a mounting plate 41, a motor 42, a guide rail 43, a slider 44, a connecting seat 45, a screw 46 and a moving seat 47; the position of the mounting plate 41 is relatively fixed to the position of the Luneburg lens 3, the side of the mounting plate 41 facing the Luneburg lens 3 is a mounting surface 411, the Luneburg lens 3 is a spherical Luneburg lens, and the mounting surface 411 is a plane; the guide rail 43 is mounted on the mounting plate 41, and the guide rail 43 is between the mounting surface 411 and the Luneburg lens 3; both ends of the screw 46 are rotatably mounted on the mounting plate 4 1, and the axis of the screw 46 and the axis of the guide rail 43 are parallel to each other in their orthographic projections on the mounting surface 411; the motor 42 is fixed on the mounting plate 41, and the motor 42 is used to drive the screw 46 to rotate; the movable seat 47 is provided with a screw hole, and the screw hole of the movable seat 47 is threadedly connected with the screw 46; the reflecting plate 1 is arranged between the Luneburg lens 3 and the guide rail 43; the slider 44 is installed on the reflecting plate 1, and the slider 44 is slidably connected with the guide rail 43; one end of the connecting seat 45 is connected to the moving seat 47, and the other end of the connecting seat 45 is connected to the reflecting plate 1; the feed source 2 is installed on the side of the reflecting plate 1 facing the Luneburg lens 3, and the side of the reflecting plate 1 facing the Luneburg lens 3 is the reflecting surface. The reflector 1 of the Luneburg lens antenna with electrically adjustable feed position is slidable along the guide rail 43 by means of a slider 44, so that the feed 2 on the reflector 1 can be adjusted relative to the Luneburg lens 3; when adjusting the position of the feed 2, the motor 42 drives the screw 46 to rotate, so that the moving seat 47 on the screw 46 moves linearly along the axis of the screw 46, so that the connecting seat 45 on the moving seat 47 can drive the reflector 1 to move along the guide rail 43, so that the reflector 1 can be displaced in a predetermined direction set by the shape of the guide rail 43, and the reflector 1 is not adjusted relative to the Luneburg lens 3 by means of a rotating shaft connection, so the operation stability is good and it is also very convenient to assemble, so that the Luneburg lens antenna with electrically adjustable feed position has the advantages of simple structure, reasonable design, good feed position adjustment stability, convenient assembly and low production cost.

[0029] In order to make the Luneburg lens antenna with electrically adjustable feed position more stable when the position of feed source 2 is adjusted, as shown in FIG. Figure 2 , Figure 3 As shown, the position adjustment mechanism 4 also includes a guide rod 48, both ends of which are mounted on the mounting plate 41, and the axis of the guide rod 48 is parallel to the axis of the screw 46; the movable seat 47 is provided with a guide portion 471, and the guide portion 471 is provided with a guide hole, and the guide hole of the movable seat 47 is mounted on the guide rod 48.

[0030] In order to make the structure of the Luneburg lens antenna with electrically adjustable feed position more reasonable and further improve the operational stability when the position of the feed 2 is adjusted, as shown in FIG. Figure 2 , Figure 3 As shown, the guide rail 43 includes a left guide rail 431 and a right guide rail 432, and the left guide rail 431 and the right guide rail 432 are both provided with guide rail grooves 433 along their axial directions; the motor 42, the screw rod 46, and the guide rod 48 are all located between the left guide rail 431 and the right guide rail 432; the slider 44 includes a left slider 441 and a right slider 442, and the left slider 441 and the right slider 442 are both provided with sliding parts 443, the sliding part 443 of the left slider 441 is slidably matched with the guide rail groove 433 of the left guide rail 431, and the sliding part 443 of the right slider 442 is slidably matched with the guide rail groove 433 of the right guide rail 432.

[0031] In order to make the feed source 2 of the Luneburg lens antenna with electrically adjustable feed source position be able to achieve linear movement for position adjustment, such as Figure 2 , Figure 3 As shown, the guide rail grooves 433 on the left guide rail 431 and the right guide rail 432 are both linear structures, and the sliding parts 443 on the left slider 441 and the right slider 442 are also linear structures; one end of the connecting seat 45 is fixedly connected to the moving seat 47, and the other end of the connecting seat 45 is fixedly connected to the reflective plate 1.

[0032] In order to make the assembly structure of the left guide rail 431 and the right guide rail 432 corresponding to the left slider 441 and the right slider 442 more reasonable, as shown in FIG. Figure 2 , Figure 3 As shown, the cross-sections of the guide grooves 433 on the left guide rail 431 and the right guide rail 432 are both inverted T-shaped structures, and the cross-sections of the sliding parts 443 on the left slider 441 and the right slider 442 are also inverted T-shaped structures. The sliding part 443 of the inverted T-shaped structure and the guide groove 433 of the inverted T-shaped structure have good sliding stability, and there is no danger of derailment when the Luneburg lens antenna with electrically adjustable feed position is installed at an angle.

[0033] In order to make the installation structure of the Luneburg lens more reasonable, such as Figure 1 , Figure 2 , Figure 4As shown, the Luneburg lens antenna with electrically adjustable feed position also includes a cover 5 and a bracket 6, the cover 5 includes an upper half shell 51 and a lower half shell 52, the upper half shell 51 forms an upper fixing ring 511 along the edge of its shell opening, the lower half shell 52 forms a lower fixing ring 521 along the edge of its shell opening, the upper half shell 51 and the lower half shell 52 are assembled to form an installation cavity; the Luneburg lens 3 is installed in the installation cavity; two fixing ears 61 are provided on the bracket 6, the upper fixing ring 511 of the upper half shell 51 and the lower fixing ring 521 of the lower half shell 52 are fixedly connected to the two fixing ears 61 on the bracket 6; the mounting plate 41 is fixed on the bracket 6.

[0034] In order to prevent dust and moisture, the service life of the Luneburg lens antenna with electrically adjustable feed position is extended. Figure 1 As shown, the Luneburg lens antenna with electrically adjustable feed position also includes a shell 7, which is fixed on a bracket 6, and the position adjustment mechanism 4, the reflector 1 and the feed 2 are all in the shell 7, and the shell opening edge of the shell 7 is fixed to the outer surface of the lower half shell 52.

[0035] Example 2

[0036] The difference between this embodiment and embodiment 1 is that: Figure 5 , Figure 6 As shown, the left guide rail 8 and the right guide rail 9 are both of arc-shaped long strip structure, and the center of the left guide rail 8, the center of the right guide rail 9, and the center of the Luneburg lens are collinear; the sliding parts 30 of the left slider 10 and the right slider 20 are also of arc-shaped long strip structure; one end of the connecting seat 40 is fixedly connected to the moving seat 50, and a push long hole 401 is formed at the other end of the connecting seat 40, and the length direction of the push long hole 401 is perpendicular to the axis of the screw 60; a movable hole 701 is formed on the reflecting plate 70 for the end of the connecting seat 40 formed with the push long hole 401 to pass through, and a push rod 702 is also fixed on the reflecting plate 70, and the push rod 702 passes through the push long hole 401 of the connecting seat 40, and the axis of the push rod 702 is perpendicular to the projection of the axis of the screw 60 on the mounting surface of the mounting plate. Through such a structural design, this embodiment allows the feed source to move along the arc-shaped left guide rail 8 and right guide rail 9 to adjust its position, so that no matter which position the feed source is adjusted to, it can always point to the center of the Luneburg lens, thereby making the feed source better in receiving and transmitting signals.

[0037] Example 3

[0038] The difference between this embodiment and embodiment 2 is that the structure of the connection base is different. The connection base in embodiment 2 is produced in one piece. Figure 7As shown, the connection seat 80 of this embodiment is composed of an upper mounting seat 90 and a lower mounting seat 100, the lower mounting seat 100 is fixed on the moving seat, a lower recess 1001 with a notch facing upward is formed on the lower mounting seat 100, the upper mounting seat 90 is fixedly connected to the lower mounting seat 100, an upper recess 901 with a notch facing downward is formed on the upper mounting seat 90, and the upper recess 901 and the lower recess 1001 are assembled to form the pushing long hole 200. This embodiment uses this assembly structure to form the design of the pushing long hole 200, so that when it is necessary to change the feed source from the Luneburg lens antenna that moves along an arc track to the Luneburg lens antenna that moves along a straight track, it is only necessary to replace the reflector plate, guide rail and slider described in Example 1 with the reflector plate, guide rail and slider in Example 2, and remove the upper mounting seat 90, so that the lower mounting seat 100 can connect the moving seat and the reflector plate. This method can greatly improve the speed of improvement and further reduce the improvement cost of the product.

[0039] Example 4

[0040] like Figure 8 As shown, this embodiment is a Luneburg lens antenna group, including a first Luneburg lens antenna 300 and a plurality of second Luneburg lens antennas 400, the first Luneburg lens antenna 300 and the plurality of second Luneburg lens antennas 400 are arranged side by side in a straight line; the first Luneburg lens antenna 300 is the structure of the Luneburg lens antenna with electrically adjustable feed position described in Example 1 after the outer shell is removed; the difference between each second Luneburg lens antenna 400 and the first Luneburg lens antenna 300 is that the second Luneburg lens antenna 400 lacks a motor, a screw and a moving seat, and correspondingly, the second Luneburg lens antenna 400 also lacks some related components connected to the motor, the screw and the moving seat relative to the first Luneburg lens antenna 300, such as a guide rod; the connecting seat 500 of the first Luneburg lens antenna 300 and the connecting seat 500 of each second Luneburg lens antenna 400 are fixed together by a rigid member 600. It should be noted here that, in implementation, the first Luneburg lens antenna 300 and each of the second Luneburg lens antennas 400 can share a mounting plate to mount the guide rail. When in use, the motor 3001 of the first Luneburg lens antenna 300 drives its screw 3002 to rotate, so that the moving seat 3003 of the first Luneburg lens antenna 300 moves along the screw 3002, causing the connecting seat 500 fixed to the moving seat 3003 on the first Luneburg lens antenna 300 and the connecting seats 500 of each of the second Luneburg lens antennas 400 to move simultaneously, and the connecting seats 500 of the first Luneburg lens antenna 300 and the second Luneburg lens antenna 400 are connected to the reflector 700, and the reflector 700 of the first Luneburg lens antenna 300 and the second Luneburg lens antenna 400 are installed with feed sources 800, thereby realizing that the feed sources of multiple Luneburg lens antennas can be linked to adjust the position, with high work efficiency and convenient use.

[0041] Example 5

[0042] like Fig. 9 As shown, this embodiment is also a Luneburg lens antenna group, including a first Luneburg lens antenna 900 and a plurality of second Luneburg lens antennas 1000, the first Luneburg lens antenna 900 and the plurality of second Luneburg lens antennas 1000 are arranged side by side in a straight line; the first Luneburg lens antenna 900 is the structure of the Luneburg lens antenna with electrically adjustable feed position described in Example 2 after the shell is removed; the difference between each second Luneburg lens antenna 1000 and the first Luneburg lens antenna 900 is that the second Luneburg lens antenna There is a lack of motor and screw on the line 1000, and correspondingly, the second Luneburg lens antenna 1000 also lacks some related components connected to the motor and screw, such as a guide rod, compared with the first Luneburg lens antenna 900; the screw 9002 of the first Luneburg lens antenna 900 is also threadedly connected to the screw hole of the movable seat 2000 of each second Luneburg lens antenna 1000, and the guide hole on the movable seat 2000 of the second Luneburg lens antenna 1000 is mounted on the guide rod of the first Luneburg lens antenna 900. During implementation, the first Luneburg lens antenna 900 and each of the second Luneburg lens antennas 1000 can share a mounting plate to install the guide rail; during implementation, the motor 9001 of the first Luneburg lens antenna 900 drives its screw 9002 to rotate, so that the moving seat 2000 of the first Luneburg lens antenna 900 and the moving seats 2000 of each of the second Luneburg lens antennas 1000 can move along the screw 9002, and the moving seats 2000 of the first Luneburg lens antenna 900 and the second Luneburg lens antenna 1000 are respectively connected to the reflector 4000 through a connecting seat 3000, and the reflector 4000 of the first Luneburg lens antenna 900 and the second Luneburg lens antenna 1000 are respectively installed with a feed source 5000, thereby realizing that the feed sources of multiple Luneburg lens antennas can be linked to adjust the position, with high working efficiency and easy use.

Claims

1. A Luneburg lens antenna with electrically adjustable feed position, comprising a reflector, a feed, a Luneburg lens and a position adjustment mechanism; characterized in that: The position adjustment mechanism includes a mounting plate, a motor, a guide rail, a slider, a connecting seat, a screw and a moving seat; the position of the mounting plate is relatively fixed to the position of the Luneburg lens, and the side of the mounting plate facing the Luneburg lens is the mounting surface; the guide rail is mounted on the mounting plate, and the guide rail is between the mounting surface and the Luneburg lens; both ends of the screw can be rotatably mounted on the mounting plate, and the axis of the screw and the orthographic projection of the axis of the guide rail on the mounting surface are parallel to each other; the motor is fixed on the mounting plate, and the motor is used to drive the screw to rotate; a screw hole is provided on the moving seat, and the screw hole of the moving seat is threadedly connected to the screw; the reflector is arranged between the Luneburg lens and the guide rail; the slider is mounted on the reflector, and the slider is slidably connected to the guide rail; one end of the connecting seat is connected to the moving seat, and the other end of the connecting seat is connected to the reflector; the feed source is mounted on the side of the reflector facing the Luneburg lens.

2. The Luneburg lens antenna with electrically adjustable feed position according to claim 1, characterized in that: The position adjustment mechanism also includes a guide rod, both ends of which are mounted on the mounting plate, and the axis of the guide rod is parallel to the axis of the screw; the movable seat is provided with a guide portion, and the guide portion is provided with a guide hole, and the guide hole of the movable seat is sleeved on the guide rod.

3. The Luneburg lens antenna with electrically adjustable feed position according to claim 2, characterized in that: The guide rails include a left guide rail and a right guide rail, and the left guide rail and the right guide rail are both provided with guide rail grooves along their axial directions; the motor and the screw are both located between the left guide rail and the right guide rail; the sliders include a left slider and a right slider, and the left slider and the right slider are both provided with sliding parts, the sliding part of the left slider is slidably matched with the guide rail groove of the left guide rail, and the sliding part of the right slider is slidably matched with the guide rail groove of the right guide rail.

4. The Luneburg lens antenna with electrically adjustable feed position according to claim 3, characterized in that: The guide rail grooves on the left guide rail and the right guide rail are both linear structures, and the sliding parts on the left slider and the right slider are also linear structures; one end of the connecting seat is fixedly connected to the moving seat, and the other end of the connecting seat is fixedly connected to the reflecting plate.

5. The Luneburg lens antenna with electrically adjustable feed position according to claim 3, characterized in that: The left guide rail and the right guide rail are both of arc-shaped long strip structure; the sliding parts of the left slider and the right slider are also of arc-shaped long strip structure; one end of the connecting seat is fixedly connected to the movable seat, and a long pushing hole is formed at the other end of the connecting seat, and the length direction of the long pushing hole is perpendicular to the axis of the screw; a movable hole is formed on the reflecting plate for the end of the connecting seat with the long pushing hole to pass through, and a pushing rod is also fixed on the reflecting plate, which passes through the long pushing hole of the connecting seat, and the axis of the pushing rod is perpendicular to the projection of the axis of the screw on the mounting surface of the mounting plate.

6. The Luneburg lens antenna with electrically adjustable feed position according to claim 5, characterized in that: The connecting seat is composed of an upper mounting seat and a lower mounting seat, the lower mounting seat is fixed on the moving seat, a lower concave position with a notch facing upward is formed on the lower mounting seat, the upper mounting seat is fixedly connected to the lower mounting seat, an upper concave position with a notch facing downward is formed on the upper mounting seat, and the upper concave position and the lower concave position are assembled to form the pushing long hole.

7. The Luneburg lens antenna with electrically adjustable feed position according to claim 4 or 5, characterized in that: The cross sections of the guide rail grooves on the left guide rail and the right guide rail are both inverted T-shaped structures, and the cross sections of the sliding parts on the left slider and the right slider are also inverted T-shaped structures.

8. The Luneburg lens antenna with electrically adjustable feed position according to claim 1, characterized in that: It also includes a cover shell and a bracket, the cover shell includes an upper half shell and a lower half shell, the upper half shell forms an upper fixing ring along the edge of its shell opening, the lower half shell forms a lower fixing ring along the edge of its shell opening, the upper half shell and the lower half shell are assembled to form an installation cavity; the Luneburg lens is installed in the installation cavity; the bracket is provided with two fixing ears, the upper fixing ring of the upper half shell and the lower fixing ring of the lower half shell are fixedly connected to the two fixing ears on the bracket; the mounting plate is fixed on the bracket.

9. A Luneburg lens antenna assembly, comprising a first Luneburg lens antenna and a plurality of second Luneburg lens antennas, wherein the first Luneburg lens antenna and the plurality of second Luneburg lens antennas are arranged side by side in a straight line; characterized in that: The first Luneburg lens antenna is the Luneburg lens antenna with electrically adjustable feed position as described in claim 1; the difference between each second Luneburg lens antenna and the first Luneburg lens antenna is that the second Luneburg lens antenna lacks a motor, a screw and a movable seat; the connecting seat of the first Luneburg lens antenna and the connecting seat of each second Luneburg lens antenna are fixed together by a rigid part.

10. A Luneburg lens antenna assembly, comprising a first Luneburg lens antenna and a plurality of second Luneburg lens antennas, wherein the first Luneburg lens antenna and the plurality of second Luneburg lens antennas are arranged side by side in a straight line; characterized in that: The first Luneburg lens antenna is the Luneburg lens antenna with electrically adjustable feed position as described in claim 1; the difference between each second Luneburg lens antenna and the first Luneburg lens antenna is that the second Luneburg lens antenna lacks a motor and a screw; the screw of the first Luneburg lens antenna is also threadedly connected to the screw hole of the movable seat of each second Luneburg lens antenna.

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