LUNEBERG LENS ANTENNA WITH ELECTRICALLY POSITION-ADJUSTABLE FEED AND LUNEBERG LENS ANTENNA GROUP
A Luneberg lens antenna with a position-electrically adjustable feed includes: a reflecting plate, a feed, a Luneberg lens, and a position adjusting mechanism. The position adjusting mechanism includes a mounting plate, a motor, a guide rail, a sliding block, a connecting base, a screw and a moving base. A position of the mounting plate is relatively fixed to a position of the Luneberg lens. The guide rail is mounted on the mounting plate. Both ends of the screw are rotationally mounted on the mounting plate. The motor is fixed on the mounting plate and configured for driving the screw to rotate. The moving base is provided with a screw hole, and the screw hole of the moving base is in threaded connection with the screw. The present disclosure has characteristics of good stability in adjusting a feed position, convenient assembly and low production cost.
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This application is the National Stage of International Application No. PCT/CN2022/076807, filed on Feb. 18, 2022, which claims priority to Chinese Patent Application No. 2021208937573, filed on Apr. 28, 2021. All of the aforementioned applications are incorporated herein by reference in their entireties.
TECHNICAL FIELDThe present disclosure relates to the technical field of communication devices, and in particular to a Luneberg lens antenna with a position-electrically adjustable feed and a Luneberg lens antenna group.
BACKGROUNDFor a traditional Luneberg lens antenna, when a radiation angle of a feed is required to be changed by adjusting its tilt angle, tower operators are required to climb a tower to adjust a pitch angle of a clamp on site to match the optimal effect, which is time-consuming and labor-intensive. In bad weather like wind or snow, this adjusting way increases operation difficulty, and a manually adjusting way brings large error. In order to reduce operating difficulty of the operators and avoid climbing of a tower by the operators to adjust an antenna every time, there are also some Luneberg lens antennas commercially available for which a position of a feed can be electrically adjusted. As technical schemes in Chinese Patent Application No. 202020408992.2, applied by the applicant and entitled “Electrically Adjustable Luneberg LensAntenna”, this type of Luneberg lens antenna includes: a feed, a Luneberg lens, a mounting rack, and a position adjusting mechanism. A spherical surface is formed on the Luneberg lens, and the Luneberg lens is relatively fixed together with the mounting rack. The position adjusting mechanism includes a swinging rack, a driving rod, a driving base, and a transmission device. The driving rod is rotationally mounted on the mounting rack. The transmission device is also mounted on the mounting rack and configured for driving the driving rod to rotate. The driving base is connected with the driving rod, and can move in a straight line along the driving rod by rotation of the driving rod. The swinging rack is between the mounting rack and the Luneberg lens, a swinging rod is connected to the swinging rack, and a rotating end that can rotate relative to the Luneberg lens is formed on the swinging rod, so that the swinging rack can swing relative to a center of the spherical surface of the Luneberg lens. The feed is mounted on the swinging rack, and a connecting rod is hinged between the swinging rack and the driving base. This structure of realizing adjustment of a feed position by swinging of the swing rack is not stable, and the swinging rod of the swinging rack needs to be mounted by hinging, which is not convenient to assemble. Based on shortcomings of an existing Luneberg lens antenna, it is urgent to improve a structure of the existing Luneberg lens antenna.
SUMMARYThe present disclosure aims to provide a Luneberg lens antenna with a position-electrically adjustable feed, which has advantages of simple structure, reasonable design, good stability in adjusting a feed position, convenient assembly and low production cost.
A technical solution of the Luneberg lens antenna with the position-electrically adjustable feed is realized as follows. The Luneberg lens antenna with the position-electrically adjustable feed may include a reflecting plate, a feed, a Luneberg lens, and a position adjusting mechanism. The position adjusting mechanism includes a mounting plate, a motor, a guide rail, a sliding block, a connecting base, a screw and a moving base. A position of the mounting plate is relatively fixed to A position of the Luneberg lens, and a surface, facing the Luneberg lens, of the mounting plate is a mounting surface. The guide rail is mounted on the mounting plate and between the mounting surface and the Luneberg lens. Both ends of the screw are rotationally mounted on the mounting plate, and orthographic projections, on the mounting surface, of an axis of the screw and an axis of the guide rail are parallel to each other. The motor is fixed on the mounting plate and configured for driving the screw to rotate. The moving base is provided with a screw hole, and the screw hole of the moving base is in threaded connection with the screw. The reflecting plate is arranged between the Luneberg lens and the guide rail. The sliding block is mounted on the reflecting plate and in sliding fit connection with the guide rail. One end of the connecting base is connected with the moving base, and the other end of the connecting base is connected with the reflecting plate. The feed is mounted on a surface, facing the Luneberg lens, of the reflecting plate.
Further, the position adjusting mechanism further includes a guide rod, both ends of the guide rod are mounted on the mounting plate, and an axis of the guide rod is parallel to the axis of the screw. A guide part is provided on the moving base, the guide part is provided with a guide hole, and the guide hole of the moving base is sleeved on the guide rod.
Furthermore, the guide rail includes a left guide rail and a right guide rail, and both the left guide rail and the right guide rail are provided with a guide rail groove along their axes. Both the motor and the screw are between the left guide rail and the right guide rail. The sliding block includes a left sliding block and a right sliding block. Both the left sliding block and the right sliding block are provided with a sliding part. The sliding part of the left sliding block is in sliding fit with the guide rail groove of the left guide rail, and the sliding part of the right sliding block is in sliding fit with the guide rail groove of the right guide rail.
Furthermore, the guide rail grooves on the left guide rail and the right guide rail are of a linear structure, and the sliding parts on the left sliding block and the right sliding block are also of a linear structure. One end of the connecting base is fixedly connected with the moving base, and the other end of the connecting base is fixedly connected with the reflecting plate.
Furthermore, cross sections of the guide rail grooves on the left guide rail and the right guide rail are of an inverted-T-shaped structure, and cross sections of the sliding parts on the left sliding block and the right sliding block are also of an inverted-T-shaped structure.
Beneficial effects of the Luneberg lens antenna with the position-electrically adjustable feed are as follow. The reflecting plate of the Luneberg lens antenna with a position-electrically adjustable feed can slide along the guide rail through the sliding block, so that the position of the feed on the reflecting plate can be adjusted relative to the Luneberg lens. When the position of the feed is adjusted, the screw is driven by the motor to rotate to make the moving base on the screw move in the straight line along the axis of the screw, so that the connecting base on the moving base can drive the reflecting plate to move along the guide rail. In this way, the reflecting plate can move in a direction set by a shape of the guide rail, instead of being connected by a rotating shaft to adjust the position relative to the Luneberg lens, which is with good operational stability, and convenient assembly; therefore, the Luneberg lens antenna with the position-electrically adjustable feed has advantages of simple structure, reasonable design, good stability in adjusting a feed position, convenient assembly and low production cost.
A Luneberg lens antenna group is further provided in the present disclosure, which has advantages of simple structure, reasonable design, high adjustment efficiency and convenient use.
A technical scheme of the Luneberg lens antenna group is realized as follows. The Luneberg lens antenna group includes a first Luneberg lens antenna and a number of second Luneberg lens antennas. The first Luneberg lens antenna and the number of second Luneberg lens antennas are arranged side by side in a straight line. The first Luneberg lens antenna is the Luneberg lens antenna with the position-electrically adjustable feed described in the above scheme. Difference between the second Luneberg lens antenna and each first Luneberg lens antenna is that: there is no motor, screw and moving base on the second Luneberg lens antenna. A connecting base of the first Luneberg lens antenna is fixed together with a connecting base of each second Luneberg lens antenna through a rigid component.
Beneficial effects of the Luneberg lens antenna group are as follows. During use, the motor of the first Luneberg lens antenna drives its screw to rotate to make the moving base of the first Luneberg lens antenna move along the screw, so that the connecting base fixed together with the moving base on the first Luneberg lens antenna and the connecting base of the second Luneberg lens antenna act simultaneously; the connecting bases of the first Luneberg lens antenna and the second Luneberg lens antennas are all connected with the reflecting plate, the reflecting plates of the first Luneberg lens antenna and the second Luneberg lens antennas are all provided with feeds, and then positions of the feeds of a plurality of Luneberg lens antennas can be adjusted in a linkage mode; therefore, the Luneberg lens antenna group has advantages of simple structure, reasonable design, high adjustment efficiency and convenient use.
As shown in
For better operational stability of the Luneberg lens antenna with a position-electrically adjustable feed when the position of the feed 2 is adjusted, as shown in
In order to make the structure of the Luneberg lens antenna with a position-electrically adjustable feed more reasonable and further improve the operational stability when the position of the feed 2 is adjusted, as shown in
In order to enable the feed 2 of the Luneberg lens antenna with a position-electrically adjustable feed to move in the straight line to adjust the position, as shown in
In order to make a structure of assembling the left guide rail 431 and the right guide rail 432 correspondingly with the left sliding block 441 and the right sliding block 442 more reasonable, as shown in
In order to make a mounting structure of the Luneberg lens more reasonable, as shown in
In order to prevent dust and moisture and prolong service life of the Luneberg lens antenna with the position-electrically adjustable feed, as shown in
Difference between this embodiment and embodiment 1 is that: as shown in
Difference between this embodiment and Embodiment 2 is that the structures of the connecting bases are different. The connecting base in Embodiment 2 is produced in one piece. As shown in
As shown in
As shown in
Claims
1. A Luneberg lens antenna with a position-electrically adjustable feed, comprising: a reflecting plate, a feed, a Luneberg lens, and a position adjusting mechanism; wherein, the position adjusting mechanism comprises a mounting plate, a motor, a guide rail, a sliding block, a connecting base, a screw and a moving base; a position of the mounting plate is relatively fixed to a position of the Luneberg lens, and a surface, facing the Luneberg lens, of the mounting plate is a mounting surface; the guide rail is mounted on the mounting plate and between the mounting surface and the Luneberg lens; both ends of the screw are rotationally mounted on the mounting plate, and orthographic projections, on the mounting surface, of an axis of the screw and an axis of the guide rail are parallel to each other; the motor is fixed on the mounting plate and configured for driving the screw to rotate; the moving base is provided with a screw hole, and the screw hole of the moving base is in threaded connection with the screw; the reflecting plate is arranged between the Luneberg lens and the guide rail; the sliding block is mounted on the reflecting plate and in sliding fit connection with the guide rail; one end of the connecting base is connected with the moving base, and the other end of the connecting base is connected with the reflecting plate;
- and the feed is mounted on a surface, facing the Luneberg lens, of the reflecting plate.
2. The Luneberg lens antenna with the position-electrically adjustable feed according to claim 1, wherein the position adjusting mechanism further comprises a guide rod, both ends of the guide rod are mounted on the mounting plate, and an axis of the guide rod is parallel to the axis of the screw; a guide part is provided on the moving base, the guide part is provided with a guide hole, and the guide hole of the moving base is sleeved on the guide rod.
3. The Luneberg lens antenna with the position-electrically adjustable feed according to claim 2, wherein the guide rail comprises a left guide rail and a right guide rail, both the left guide rail and the right guide rail are provided with a guide rail groove along their axes;
- both the motor and the screw are between the left guide rail and the right guide rail; and the sliding block comprises a left sliding block and a right sliding block, both the left sliding block and the right sliding block are provided with a sliding part, the sliding part of the left sliding block is in sliding fit with the guide rail groove of the left guide rail, and the sliding part of the right sliding block is in sliding fit with the guide rail groove of the right guide rail.
4. The Luneberg lens antenna with the position-electrically adjustable feed according to claim 3, wherein the guide rail grooves on the left guide rail and the right guide rail are of a linear structure, and the sliding parts on the left sliding block and the right sliding block are also of a linear structure; one end of the connecting base is fixedly connected with the moving base, and the other end of the connecting base is fixedly connected with the reflecting plate.
5. The Luneberg lens antenna with the position-electrically adjustable feed according to claim 3, wherein both the left guide rail and the right guide rail are of an arc-shaped strip structure; the sliding parts of the left sliding block and the right sliding block are also of an arc-shaped strip structure; one end of the connecting base is fixedly connected with the moving base, and the other end of the connecting base is formed with a pushing-type long hole, and a length direction of the pushing long hole is vertical to the axis of the screw; there is a movable hole formed on the reflecting plate for an end, formed with the pushing long hole, of the connecting base to pass through; there is also a pushing rod fixed on the reflecting plate, the pushing rod passing through the pushing-type long hole of the connecting base, and projections, on the mounting surface of the mounting plate, of an axis of the pushing rod and the axis of the screw are vertical to each other.
6. The Luneberg lens antenna with the position-electrically adjustable feed according to claim 5, wherein the connecting base is composed of an upper mounting base and a lower mounting base, the lower mounting base is fixed on the moving base a down recessed part with a notch facing up is formed on the lower mounting base, and the upper mounting base is fixedly connected with the lower mounting base, an up recessed part with a notch facing down is formed on the upper mounting base; the up recessed part is assembled with the down recessed part to form the pushing-type long hole.
7. The Luneberg lens antenna with the position-electrically adjustable feed according to claim 4, wherein cross sections of the guide rail grooves on the left guide rail and the right guide rail are of an inverted-T-shaped structure, and cross sections of the sliding parts on the left sliding block and the right sliding block are also of an inverted-T-shaped structure.
8. The Luneberg lens antenna with the position-electrically adjustable feed according to claim 1, further comprising: a cover shell and a support, wherein the cover shell comprises an upper half shell and a lower half shell, the upper half shell is formed with an upper fixing ring along an edge of its shell opening, the lower half shell is formed with a lower fixing ring along an edge of its shell opening, and the upper half shell is assembled with the lower half shell to form a mounting chamber, the Luneberg lens is mounted in the mounting chamber; and there are two fixing lugs arranged on the support, both the upper fixing ring of the upper half shell and the lower fixing ring of the lower half shell are fixedly connected with the two fixing lugs on the support; and the mounting plate is fixed on the support.
9. A Luneberg lens antenna group, comprising a first Luneberg lens antenna and a number of second Luneberg lens antennas the first Luneberg lens antenna and a number of second Luneberg lens antennas being arranged side by side in a straight line, wherein the first Luneberg lens antenna is the Luneberg lens antenna with the position-electrically adjustable feed according to claim 1, difference between each second Luneberg lens antenna and the first Luneberg lens antenna is that: there is no motor, screw and moving base on the second Luneberg lens antenna, and a connecting base of the first Luneberg lens antenna is fixed together with a connecting base of each second Luneberg lens antenna through a rigid component.
10. A Luneberg lens antenna group, comprising a first Luneberg lens antenna and a number of second Luneberg lens antennas; the first Luneberg lens antenna and a number of second Luneberg lens antennas being arranged side by side in a straight line, wherein the first Luneberg lens antenna is the Luneberg lens antenna with the position-electrically adjustable feed according to claim 1, difference between the second Luneberg lens antenna and the first Luneberg lens antenna is that: there is no motor and screw on the second Luneberg lens antenna, and a screw of the first Luneberg lens antenna is also in threaded connection with a screw hole of a connecting base of each second Luneberg lens antenna.
11. The Luneberg lens antenna with the position-electrically adjustable feed according to claim 5, wherein cross sections of the guide rail grooves on the left guide rail and the right guide rail are of an inverted-T-shaped structure, and cross sections of the sliding parts on the left sliding block and the right sliding block are also of an inverted-T-shaped structure.
Type: Application
Filed: Feb 18, 2022
Publication Date: Feb 1, 2024
Applicant: FOSHAN EAHISON COMMUNICATION CO., LTD. (Foshan)
Inventors: Chongxuan DENG (Foshan), Qiang ZHU (Foshan), Chunhui SHANG (Foshan), Liming GAO (Foshan), Youjun KANG (Foshan), Haibo YANG (Foshan), Zhibin LIANG (Foshan)
Application Number: 18/546,232