CN117691329B - Cylindrical single-beam lens antenna system - Google Patents
Cylindrical single-beam lens antenna system Download PDFInfo
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Abstract
The invention discloses a cylindrical single-beam lens antenna system. In the cylindrical single-beam lens antenna system, the cylindrical lens is assembled and arranged on the radiation side of the array antenna, the cambered surface is arranged on one side, close to the cylindrical antenna housing, of the cylindrical lens, and the tangential surface, parallel to the array antenna, of the cylindrical lens is arranged on one side, close to the array antenna, so that the array antenna and the cylindrical lens can be accommodated in the cylindrical antenna housing, the integral structure of the cylindrical single-beam lens antenna system is optimized, the wind resistance of the cylindrical single-beam lens antenna system is effectively reduced, the wind resistance is improved, the cylindrical lens is utilized to compress single-wide-beam electromagnetic waves radiated by the array antenna into single-narrow-beam electromagnetic waves, the narrow-beam lens antenna arranged in the cylindrical antenna housing is formed, meanwhile, the cylindrical single-beam lens antenna system can be rotated by a rotary driving piece, scanning and covering of 360 degrees in a horizontal plane are realized, and the situation of beam distortion in the scanning process is effectively prevented.
Description
Technical Field
The invention relates to the technical field of lens antennas, in particular to a cylindrical single-beam lens antenna system.
Background
In recent years, with the rapid development of technology, 5G communication has become the mainstream, and since a lens antenna system has advantages of narrow transmission beam, high gain, long transmission distance, capability of covering a space domain of a specific shape, capability of realizing low sidelobes in a combined feed mode, and the like, it is widely applied to various technical fields, and thus research on the lens antenna system is one of the popular research directions at present.
In prior art, lens in the lens antenna is generally the cylinder, array antenna then is the side that sets up at the lens that is the cylinder setting, so that the whole body of radome is irregular cylinder structure, lead to the holistic wind resistance of lens antenna relatively poor, easily receive the windage influence of external air current on the lens antenna, and take place accidents such as subassembly drops or fracture, seriously influence the life of equipment, and single lens antenna is limited by its wave beam width, can't realize scanning and the cover of horizontal plane, the wave beam distortion appears easily, often need set up a plurality of lens antennas just can satisfy scanning and the cover to the horizontal plane, lead to construction cost high.
Disclosure of Invention
In order to overcome at least one of the drawbacks of the prior art described above, the present invention provides a cylindrical single beam lens antenna system that enables 360 degree scanning and coverage in a horizontal plane.
According to an embodiment of the invention, a cylindrical single beam lens antenna system includes: the cylindrical antenna housing, two ends of the cylindrical antenna housing are provided with rotating pieces; the rotary driving piece is connected with at least one rotary piece; an array antenna, the array antenna being fitted within the cylindrical radome; the cylindrical lens is assembled in the cylindrical antenna housing and arranged on the radiation side of the array antenna, an arc surface is arranged on one side, close to the cylindrical antenna housing, of the cylindrical lens, and a tangential plane parallel to the array antenna is arranged on one side, close to the array antenna, of the cylindrical lens; the rotary driving piece is used for driving the whole cylindrical single-beam lens antenna to rotate through the rotary piece; the cylindrical lens is used for compressing the single wide beam electromagnetic wave radiated by the array antenna into the single narrow beam electromagnetic wave to form the narrow beam lens antenna arranged in the cylindrical radome, and when the rotary driving piece drives the rotary piece, the narrow beam lens antenna can scan within a horizontal range of 360 degrees, and the beam cannot be distorted.
In this cylindrical single beam lens antenna system, through will the lenticular lens assembly sets up the radiation side of array antenna, just the lenticular lens is close to one side of cylindrical radome is provided with the cambered surface, the lenticular lens is close to one side of array antenna is provided with and is on a parallel with array antenna's tangent plane, so that array antenna with lenticular lens can be held in the cylindrical radome, optimize cylindrical single beam lens antenna system's overall structure, can effectively reduce cylindrical single beam lens antenna system's windage, improve wind resistance, and utilize lenticular lens will array antenna radiating single wide beam electromagnetic wave compresses into single narrow beam electromagnetic wave, forms and arranges in narrow beam lens antenna in the cylindrical radome, cylindrical single beam lens antenna system can by rotary driving piece rotates simultaneously, realizes carrying out 360 degrees scanning and cover in the horizontal plane, effectively prevents the circumstances of beam distortion in the scanning process.
According to some embodiments of the invention, the cylindrical radome is made of a low dielectric constant material.
According to some embodiments of the invention, the cross-sectional area of the lenticular lens is less than or equal to three-quarters of the circular area.
According to some embodiments of the invention, the cross-sectional area of the lenticular lens is less than or equal to three-quarters of the cross-sectional area of the cylindrical radome.
According to some embodiments of the invention, the lenticular lens is composed of a plurality of metal hollow tubes.
According to some embodiments of the invention, the lenticular lens comprises a plurality of metallic hollow tubes and a substrate member, the metallic hollow tubes being disposed within the substrate member.
According to some embodiments of the invention, the substrate is constructed of a lightweight foam material.
According to some embodiments of the invention, the substrate member is provided with a plurality of fitting holes, and the metal hollow tube is disposed in the fitting holes.
According to some embodiments of the invention, the lens further comprises an insulating blank spacer, and the insulating blank spacer is encapsulated on two sides of the substrate piece along the axial direction of the cylindrical lens.
According to some embodiments of the invention, the horizontal plane-3 dB beamwidth of the narrow beam lens antenna is less than 55 °.
According to some embodiments of the invention, the rotating member comprises at least one rotating bearing and/or sliding bearing.
According to some embodiments of the invention, the rotary drive comprises at least one rotary electric machine.
According to some embodiments of the invention, a phase shifter is arranged on the array antenna, a transmission mechanism is connected to the phase shifter, and a remote control driving unit is connected to the transmission mechanism.
In the cylindrical single-beam lens antenna system, the cylindrical single-beam lens antenna system can be rotated by the rotary driving piece to realize 360-degree scanning and coverage in a horizontal plane, and the remote control driving unit receives a control signal transmitted from the outside to drive the transmission mechanism to execute action, drive the phase shifter to shift the phase, so that scanning in the vertical direction is realized, and the cylindrical single-beam lens antenna system can effectively meet the scanning and coverage of the horizontal plane and the vertical plane.
In summary, the cylindrical single-beam lens antenna system provided by the invention has the following technical effects:
1) The cylindrical lens is assembled and arranged on the radiation side of the array antenna, the cambered surface is arranged on one side, close to the cylindrical antenna housing, of the cylindrical lens, and the tangent plane parallel to the array antenna is arranged on one side, close to the array antenna, of the cylindrical lens, so that the array antenna and the cylindrical lens can be accommodated in the cylindrical antenna housing, the integral structure of the cylindrical single-beam lens antenna system is optimized, the wind resistance of the cylindrical single-beam lens antenna system can be effectively reduced, the wind resistance is improved, the cylindrical lens is utilized to compress single-wide-beam electromagnetic waves radiated by the array antenna into single-narrow-beam electromagnetic waves, the narrow-beam lens antenna arranged in the cylindrical antenna housing is formed, meanwhile, the cylindrical single-beam lens antenna system can be rotated by the rotary driving piece, 360-degree scanning and coverage in the horizontal plane are realized, and the situation of beam distortion in the scanning process is effectively prevented;
2) The cylindrical single-beam lens antenna system can be rotated by the rotary driving piece to realize 360-degree scanning and coverage in a horizontal plane, and the remote control driving unit receives an external control signal to drive the transmission mechanism to execute action to drive the phase shifter to shift phase, so that scanning in a vertical direction is realized, and the cylindrical single-beam lens antenna system can effectively meet the scanning and coverage of the horizontal plane and the vertical plane.
Drawings
Fig. 1 is a schematic structural diagram of a cylindrical single beam lens antenna system according to an embodiment of the present invention;
Fig. 2 is a schematic structural diagram of a narrow beam lens antenna according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an array antenna according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a phase shifter according to an embodiment of the present invention;
FIG. 5 is a schematic view of a substrate member according to an embodiment of the present invention;
FIG. 6 is a schematic view of a metal hollow tube according to an embodiment of the present invention;
FIG. 7 is a schematic view of an insulating blank spacer according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a lenticular lens according to an embodiment of the invention.
Wherein the reference numerals have the following meanings:
1. A cylindrical radome; 11. a rotating member; 2. a rotary driving member; 3. an array antenna; 4. a lenticular lens; 41. a cambered surface; 42. cutting into sections; 5. a metal hollow tube; 6. a substrate member; 61. a fitting hole; 62. insulating blank separators; 7. a phase shifter; 71. a transmission mechanism.
Detailed Description
For a better understanding and implementation, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements to be referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
Embodiment one:
Referring to fig. 1,2 and 3, the invention discloses a cylindrical single beam lens antenna system, which comprises a cylindrical radome 1, a rotary driving member 2, an array antenna 3 and a cylindrical lens 4, wherein, optionally, two ends of the cylindrical radome 1 are provided with rotary members 11; the rotary drive element 2 is connected to at least one of the rotary elements 11; the array antenna 3 is assembled in the cylindrical radome 1; the cylindrical lens 4 is assembled in the cylindrical radome 1 and is arranged on the radiation side of the array antenna 3, a cambered surface 41 is arranged on one side, close to the cylindrical radome 1, of the cylindrical lens 4, and a tangential surface 42 parallel to the array antenna 3 is arranged on one side, close to the array antenna 3, of the cylindrical lens 4; further, the rotation driving piece 2 is configured to drive the whole cylindrical single beam lens antenna to rotate through the rotation piece 11; the cylindrical lens 4 is used for compressing the single wide beam electromagnetic wave radiated by the array antenna 3 into a single narrow beam electromagnetic wave to form a narrow beam lens antenna arranged in the cylindrical radome 1, and when the rotary driving piece 2 drives the rotary piece 11, the narrow beam lens antenna can scan within a horizontal range of 360 degrees, and the beam cannot be distorted. Preferably, the cylindrical lens 4 is assembled and arranged on the radiation side of the array antenna 3, and the cambered surface 41 is arranged on the side, close to the cylindrical radome 1, of the cylindrical lens 4, and the tangential surface 42 parallel to the array antenna 3 is arranged on the side, close to the array antenna 3, of the cylindrical lens 4, so that the array antenna 3 and the cylindrical lens 4 can be accommodated in the cylindrical radome 1, the overall structure of the cylindrical single-beam lens antenna system is optimized, the wind resistance of the cylindrical single-beam lens antenna system can be effectively reduced, the wind resistance is improved, the cylindrical lens 4 is utilized to compress the single-beam electromagnetic waves radiated by the array antenna 3 into single-narrow-beam electromagnetic waves, the narrow-beam lens antenna arranged in the cylindrical radome 1 is formed, meanwhile, the cylindrical single-beam lens antenna system can be rotated by the rotary driving piece 2, and 360-degree scanning and coverage in a horizontal plane are realized, and the situation of beam distortion in the scanning process is effectively prevented.
Referring to fig. 2 and 8, optionally, the whole of the lenticular lens 4 is a cylinder-like body, preferably, the structure of the lenticular lens 4 is a cylinder with a straight section arranged along the axial direction, optionally, the lenticular lens 4 is provided with a plane parallel to the array antenna 3, one side of the plane away from the array antenna 3 is provided with an arc surface 41, wherein the arc surface 41 and the plane enclose a cylindrical body structure, so that the array antenna 3 and the lenticular lens 4 can be accommodated in the cylindrical radome 1, the whole structure of the cylindrical single-beam lens antenna system is optimized, the wind resistance of the cylindrical single-beam lens antenna system can be effectively reduced, and the wind resistance performance is improved.
Referring to fig. 2 and 3, alternatively, the radiation side of the array antenna 3 is the side of the array antenna 3 where the radiation unit is disposed. Preferably, the array antenna 3 includes a radiation unit and a reflection plate, the radiation unit is disposed on an end surface of one side of the reflection plate, the lenticular lens 4 is disposed opposite to the radiation unit, that is, the lenticular lens 4-the radiation unit of the array antenna 3-the reflection plate of the array antenna 3 are sequentially disposed along a radial direction of the cylindrical radome, and the lenticular lens 4, the radiation unit and the reflection plate are all disposed in the cylindrical radome 1, and the single wide beam electromagnetic wave radiated by the radiation unit of the array antenna 3 is compressed into a single narrow beam electromagnetic wave by using the lenticular lens 4, so as to form a narrow beam lens antenna disposed in the cylindrical radome 1.
Alternatively, the cylindrical radome 1 is made of a low dielectric constant material. Optionally, the low dielectric constant material may be PP, PE, PC or a modified material thereof, and optionally, the cylindrical radome 1 is made of the low dielectric constant material, so that the cylindrical radome 1 has a low permittivity, energy loss and signal distortion of signal transmission can be reduced, electrical performance and working stability of a narrow beam lens antenna disposed in the cylindrical radome 1 are improved, and dielectric constant of the material is inversely proportional to propagation speed of electromagnetic waves in the material, so that the cylindrical radome 1 made of the low dielectric constant material can reduce signal transmission delay, improve signal transmission speed and efficiency, and has important significance in fields such as communication and data transmission.
Optionally, the cross-sectional area of the lenticular lens 4 is less than or equal to three-quarters of the circular area. Optionally, the circle is concentric with the cross section of the cylindrical lens 4 and has equal radius, and by limiting the cross section area of the cylindrical lens 4 to be less than or equal to three quarters of the area of the circle, the cylindrical lens 4 is prevented from overcompression of the single wide beam electromagnetic wave radiated by the array antenna 3, so that the horizontal plane-3 dB beam width of the narrow beam lens antenna placed in the cylindrical radome 1 is too small, and the wide beam of the lens is realized. Preferably, the horizontal plane-3 dB beamwidth of the narrow beam lens antenna is less than 55 °.
Optionally, the cross-sectional area of the lenticular lens 4 is less than or equal to three-quarters of the cross-sectional area of the cylindrical radome 1. Optionally, the cross-sectional area of the lenticular lens 4 is limited to be smaller than or equal to three quarters of the cross-sectional area of the cylindrical radome 1, so that the cylindrical radome 1 can leave enough space for assembling the array antenna 3, the problem that the assembling difficulty of the array antenna 3 becomes large due to too small assembling space is avoided, or interference between the cylindrical lens 4 and the array antenna 3 assembled in the cylindrical radome 1 is avoided when the cylindrical lens 4 is assembled, and the cylindrical lens 4 and the array antenna 3 can be arranged in the cylindrical radome 1, so that the overall structure of the cylindrical single-beam lens antenna system is optimized, wind resistance of the cylindrical single-beam lens antenna system can be effectively reduced, and wind resistance performance is improved.
Optionally, the lenticular lens 4 is composed of a plurality of metal hollow tubes 5. Optionally, the axis of the metal hollow tube 5 is perpendicular to the plane where the array antenna 3 is located, preferably, the cylindrical lens 4 formed by a plurality of metal hollow tubes 5 forms a one-dimensional photonic crystal, so that the cylindrical single-beam lens antenna system is applied to a linear scene, the array antenna 3 can only transmit and receive beams parallel to the axis of the metal hollow tube 5 through the cylindrical lens 4, and the electromagnetic wave radiated by the array antenna 3 is compressed into a single narrow-beam electromagnetic wave by using the cylindrical lens 4, and meanwhile, interference of beams in other directions can be avoided. Further, when the rotation driving member 2 drives the cylindrical single beam lens antenna system to rotate in the horizontal plane through the rotation member 11, the array antenna 3 can only transmit and receive the beam parallel to the axis of the metal hollow tube 5 through the cylindrical lens 4, so that the array antenna 3 can accurately scan and cover the beam at a corresponding angle, and the situation of beam distortion in the scanning process is effectively prevented.
Optionally, the rotating member 11 comprises at least one rotating bearing and/or sliding bearing. Optionally, at least one end of the cylindrical radome 1 is assembled to a corresponding fixed bracket through the rotating member 11, so that the cylindrical radome 1 can rotate relative to the fixed bracket, optionally, the end of the cylindrical radome 1 can be rotatably connected with the fixed bracket through any one of a rotating bearing and a sliding bearing, optionally, the rotating driving member 2 can drive the cylindrical radome 1 and a narrow beam lens antenna arranged in the cylindrical radome 1 to rotate in a horizontal plane through the rotating member 11, thereby realizing 360-degree scanning.
Optionally, the rotary driving member 2 comprises at least one rotary electric machine. Optionally, a rotating motor is used to drive the rotating member 11 to drive the narrow beam lens antenna disposed in the cylindrical radome 1 to rotate in a horizontal plane through the cylindrical radome 1, so as to realize 360-degree scanning. Optionally, the two ends of the cylindrical radome 1 are rotatably connected with the corresponding fixed brackets through the rotating members 11, and each rotating member 11 is connected with at least one rotating motor, so that the rotating motors positioned outside the two ends of the cylindrical radome 1 simultaneously drive the cylindrical single-beam lens antenna system to rotate in a horizontal plane, thereby realizing 360-degree scanning. Optionally, because the cylindrical radome 1 is the cylinder setting, can effectively reduce cylindrical single beam lens antenna system's windage, improve wind-resistance, reduce the energy consumption of rotating the in-process to even carry out the rotation of arbitrary angle and all can keep whole windage that receives even, avoid taking place windage inhomogeneous because of rotating, lead to the emergence of accidents such as partial subassembly is blown off or fracture.
In this embodiment, the end of the cylindrical radome 1 is connected with the rotating electrical machine through a rotating member 11 composed of a rotating bearing or a sliding bearing, so that the rotating electrical machine can rotate the cylindrical radome 1 in 360 ° on a plane, preferably, the cylindrical radome 1 is assembled with the array antenna 3 and the cylindrical lens 4, preferably, the array antenna 3 includes a radiation unit and a reflecting plate, the radiation unit is disposed on one side end surface of the reflecting plate, the cylindrical lens 4 is disposed opposite to the radiation unit, a cambered surface 41 is disposed on one side of the cylindrical radome 1, which is close to the cylindrical radome 3, a section 42 parallel to the radiation unit is disposed on one side of the cylindrical lens 4, which is preferably, of the cylindrical lens 4, the cylindrical radome 4 is in a flat cylindrical shape with a section disposed along an axial direction, or the cylindrical lens 4 is surrounded by a plane and the cambered surface 41, which is parallel to the plane on which the array antenna 3 is disposed, the cambered surface 41 is disposed on one side of the reflecting plate, and the cylindrical lens 4 is narrower than the cylindrical radome 3, and the cylindrical lens 4 is narrower than the cylindrical lens 4, which is narrower than the cylindrical lens 3, and the cylindrical lens is narrower than the cylindrical lens 3 is narrower than the cylindrical lens 3, and the cylindrical lens is narrower than the antenna 3. Preferably, the horizontal plane-3 dB beam width of the narrow beam lens antenna is smaller than 55 °, and optionally, the cross-sectional area of the lenticular lens 4 is smaller than or equal to three quarters of the cross-sectional area of the cylindrical radome 1, so that the cylindrical radome 1 can leave enough space for assembling the array antenna 3, and the problem that the assembling difficulty of the array antenna 3 or the lenticular lens 4 becomes large due to too small assembling space is avoided. Optionally, the lenticular lens 4 is composed of a plurality of metal hollow tubes 5, preferably, the lenticular lens 4 composed of a plurality of metal hollow tubes 5 forms a one-dimensional photonic crystal, so that the cylindrical single-beam lens antenna system is applied to a linear scene, the array antenna 3 can only transmit and receive beams parallel to the axis of the metal hollow tubes 5 through the lenticular lens 4, and the electromagnetic waves radiated by the array antenna 3 are compressed into single-narrow-beam electromagnetic waves by using the lenticular lens 4, and meanwhile, interference of beams in other directions can be avoided. Further, when the rotation driving member 2 drives the cylindrical single beam lens antenna system to rotate in the horizontal plane through the rotation member 11, the array antenna 3 can only transmit and receive the beam parallel to the axis of the metal hollow tube 5 through the cylindrical lens 4, so that the array antenna 3 can accurately scan and cover the beam at a corresponding angle, and the situation of beam distortion in the scanning process is effectively prevented.
Embodiment two:
Referring to fig. 1,2 and 3, the invention discloses a cylindrical single beam lens antenna system, which comprises a cylindrical radome 1, a rotary driving member 2, an array antenna 3 and a cylindrical lens 4, wherein, optionally, two ends of the cylindrical radome 1 are provided with rotary members 11; the rotary drive element 2 is connected to at least one of the rotary elements 11; the array antenna 3 is assembled in the cylindrical radome 1; the cylindrical lens 4 is assembled in the cylindrical radome 1 and is arranged on the radiation side of the array antenna 3, a cambered surface 41 is arranged on one side, close to the cylindrical radome 1, of the cylindrical lens 4, and a tangential surface 42 parallel to the array antenna 3 is arranged on one side, close to the array antenna 3, of the cylindrical lens 4; further, the rotation driving piece 2 is configured to drive the whole cylindrical single beam lens antenna to rotate through the rotation piece 11; the cylindrical lens 4 is used for compressing the single wide beam electromagnetic wave radiated by the array antenna 3 into a single narrow beam electromagnetic wave to form a narrow beam lens antenna arranged in the cylindrical radome 1, and when the rotary driving piece 2 drives the rotary piece 11, the narrow beam lens antenna can scan within a horizontal range of 360 degrees, and the beam cannot be distorted. Preferably, the cylindrical lens 4 is assembled and arranged on the radiation side of the array antenna 3, and the cambered surface 41 is arranged on the side, close to the cylindrical radome 1, of the cylindrical lens 4, and the tangential surface 42 parallel to the array antenna 3 is arranged on the side, close to the array antenna 3, of the cylindrical lens 4, so that the array antenna 3 and the cylindrical lens 4 can be accommodated in the cylindrical radome 1, the overall structure of the cylindrical single-beam lens antenna system is optimized, the wind resistance of the cylindrical single-beam lens antenna system can be effectively reduced, the wind resistance is improved, the cylindrical lens 4 is utilized to compress the single-beam electromagnetic waves radiated by the array antenna 3 into single-narrow-beam electromagnetic waves, the narrow-beam lens antenna arranged in the cylindrical radome 1 is formed, meanwhile, the cylindrical single-beam lens antenna system can be rotated by the rotary driving piece 2, and 360-degree scanning and coverage in a horizontal plane are realized, and the situation of beam distortion in the scanning process is effectively prevented.
Referring to fig. 2 and 8, optionally, the whole of the lenticular lens 4 is a cylinder, preferably, the structure of the lenticular lens 4 is a cylinder with a straight section arranged along an axial direction, optionally, the lenticular lens 4 is surrounded by a plane and an arc surface 41, specifically, the plane is parallel to the plane where the array antenna 3 is located, the arc surface 41 is arranged on the plane and surrounds the plane to form a cylindrical structure, so that the array antenna 3 and the lenticular lens 4 can be accommodated in the cylindrical radome 1, the whole structure of the cylindrical single beam lens antenna system is optimized, the wind resistance of the cylindrical single beam lens antenna system can be effectively reduced, and the wind resistance performance is improved.
Referring to fig. 2 and 3, alternatively, the radiation side of the array antenna 3 is the side of the array antenna 3 where the radiation unit is disposed. Preferably, the array antenna 3 includes a radiation unit and a reflection plate, the radiation unit is disposed on an end surface of one side of the reflection plate, the lenticular lens 4 is disposed opposite to the radiation unit, that is, the lenticular lens 4-the radiation unit of the array antenna 3-the reflection plate of the array antenna 3 are sequentially disposed along a radial direction of the cylindrical radome, and the lenticular lens 4, the radiation unit and the reflection plate are all disposed in the cylindrical radome 1, and the single wide beam electromagnetic wave radiated by the radiation unit of the array antenna 3 is compressed into a single narrow beam electromagnetic wave by using the lenticular lens 4, so as to form a narrow beam lens antenna disposed in the cylindrical radome 1.
Alternatively, the cylindrical radome 1 is made of a low dielectric constant material. Optionally, the low dielectric constant material may be PP, PE, PC or a modified material thereof, and optionally, the cylindrical radome 1 is made of the low dielectric constant material, so that the cylindrical radome 1 has a low permittivity, energy loss and signal distortion of signal transmission can be reduced, electrical performance and working stability of a narrow beam lens antenna disposed in the cylindrical radome 1 are improved, and dielectric constant of the material is inversely proportional to propagation speed of electromagnetic waves in the material, so that the cylindrical radome 1 made of the low dielectric constant material can reduce signal transmission delay, improve signal transmission speed and efficiency, and has important significance in fields such as communication and data transmission.
Optionally, the cross-sectional area of the lenticular lens 4 is less than or equal to three-quarters of the circular area. Optionally, the circle is concentric with the cross section of the lenticular lens 4 and has a radius equal to that of the cross section. Alternatively, by defining the cross-sectional area of the lenticular lens 4 to be less than or equal to three quarters of the circular area, the lenticular lens 4 is prevented from overcompression of the single wide beam electromagnetic wave radiated from the array antenna 3, resulting in an excessively small-3 dB beam width of the narrow beam lens antenna horizontal plane placed in the cylindrical radome 1, and a wide beam of the lens is realized. Preferably, the horizontal plane-3 dB beamwidth of the narrow beam lens antenna is less than 55 °.
Optionally, the cross-sectional area of the lenticular lens 4 is less than or equal to three-quarters of the cross-sectional area of the cylindrical radome 1. Optionally, the cross-sectional area of the lenticular lens 4 is limited to be smaller than or equal to three quarters of the cross-sectional area of the cylindrical radome 1, so that the cylindrical radome 1 can leave enough space for assembling the array antenna 3, the problem that the assembling difficulty of the array antenna 3 becomes large due to too small assembling space is avoided, or interference between the cylindrical lens 4 and the array antenna 3 assembled in the cylindrical radome 1 is avoided when the cylindrical lens 4 is assembled, and the cylindrical lens 4 and the array antenna 3 can be arranged in the cylindrical radome 1, so that the overall structure of the cylindrical single-beam lens antenna system is optimized, wind resistance of the cylindrical single-beam lens antenna system can be effectively reduced, and wind resistance performance is improved.
Optionally, the rotating member 11 comprises at least one rotating bearing and/or sliding bearing. Optionally, at least one end of the cylindrical radome 1 is assembled to a corresponding fixed bracket through the rotating member 11, so that the cylindrical radome 1 can rotate relative to the fixed bracket, optionally, the end of the cylindrical radome 1 can be rotatably connected with the fixed bracket through any one of a rotating bearing and a sliding bearing, optionally, the rotating driving member 2 can drive the cylindrical radome 1 and a narrow beam lens antenna arranged in the cylindrical radome 1 to rotate in a horizontal plane through the rotating member 11, thereby realizing 360-degree scanning.
Optionally, the rotary driving member 2 comprises at least one rotary electric machine. Optionally, a rotating motor is used to drive the rotating member 11 to drive the narrow beam lens antenna disposed in the cylindrical radome 1 to rotate in a horizontal plane through the cylindrical radome 1, so as to realize 360-degree scanning. Optionally, the two ends of the cylindrical radome 1 are rotatably connected with the corresponding fixed brackets through the rotating members 11, and each rotating member 11 is connected with at least one rotating motor, so that the rotating motors located outside the two ends of the cylindrical radome 1 simultaneously drive the cylindrical radome 1 and the narrow beam lens antenna placed in the cylindrical radome 1 to rotate in a horizontal plane, thereby realizing 360-degree scanning. Optionally, because the cylindrical radome 1 is the cylinder setting, can effectively reduce cylindrical single beam lens antenna system's windage, improve wind-resistance, reduce the energy consumption of rotating the in-process to even carry out the rotation of arbitrary angle and all can keep whole windage that receives even, avoid taking place windage inhomogeneous because of rotating, lead to the emergence of accidents such as partial subassembly is blown off or fracture.
Referring to fig. 5, 6, 7 and 8, optionally, the lenticular lens 4 includes a plurality of metal hollow tubes 5 and a substrate member 6, the metal hollow tubes 5 being disposed within the substrate member 6. Optionally, the substrate member 6 is used for limiting and fixing the plurality of metal hollow tubes 5, and preferably, the substrate member 6 is provided with a plurality of assembly holes 61, and the metal hollow tubes 5 are arranged in the assembly holes 61. That is, each of the mounting holes 61 is provided with one metal hollow tube 5, so that the metal hollow tube 5 is limited and fixed, so that the axis of the metal hollow tube 5 is perpendicular to the plane where the array antenna 3 is located, optionally, a plurality of substrate pieces 6 are arranged along the axis direction of the cylindrical radome 1, each of the substrate pieces 6 is provided with a plurality of mounting holes 61, each of the mounting holes 61 is provided with the metal hollow tube 5, wherein the substrate piece 6 is in a columnar structure, optionally, the columnar structure is provided with a plane parallel to the array antenna 3, and one side of the plane away from the array antenna 3 is provided with an arc surface 41, wherein the arc surface 41 and the plane enclose a columnar structure. Optionally, an insulating blank spacer 62 is further included, and the insulating blank spacer 62 is encapsulated on both sides of the substrate member 6 along the axial direction of the lenticular lens 4. That is, two insulating blank partitions 62 and the cambered surfaces 41 and the planes of the two insulating blank partitions 62 enclose a columnar structure, and the metal hollow tube 5 in the assembly hole 61 formed in the substrate member 6 is further limited and fixed by the insulating blank partitions 62, so that the metal hollow tube 5 is prevented from leaving the assembly hole 61, and optionally, one insulating blank partition 62 can be shared between two axially adjacent substrate members 6 of the columnar lens 4, that is, the metal hollow tube 5 assembled in the two substrate members 6 is limited and fixed simultaneously by one insulating blank partition 62 formed between the two adjacent substrate members 6. When assembling, the insulating blank partition plates 62 can be firstly encapsulated at two sides of the first substrate piece 6 along the axial direction, so that the metal hollow tube 5 is encapsulated in the assembling hole 61 of the first substrate piece 6, then the second substrate piece 6 is connected with the insulating blank partition plates 62 of the first substrate piece 6, then the insulating blank partition plates 62 are assembled at one side of the second substrate piece 6 far away from the first substrate piece 6, so that the metal hollow tube 5 is encapsulated in the assembling hole 61 of the second substrate piece 6, then the third substrate piece 6 is assembled, and the steps are circulated, so that a plurality of substrate pieces 6 and the metal hollow tube 5 are assembled into the cylindrical lens 4; or the insulating blank partition plates 62 are adopted to encapsulate two sides of a plurality of substrate pieces 6 to form a plurality of independent modules, and then the plurality of independent modules are arranged and combined along the axial direction of the cylindrical lens 4 to assemble the cylindrical lens 4. Alternatively, the substrate member 6 is made of a lightweight foam material, preferably, PP, PS, PE, or the like.
Preferably, a plurality of the metal hollow tubes 5 are encapsulated in the cylindrical lens 4 through the substrate 6, so that the cylindrical lens 4 forms a one-dimensional photonic crystal, and the cylindrical single-beam lens antenna system is applied to a linear scene, the array antenna 3 can only transmit and receive beams parallel to the axis of the metal hollow tubes 5 through the cylindrical lens 4, and the electromagnetic waves radiated by the array antenna 3 are compressed into single-narrow-beam electromagnetic waves by utilizing the cylindrical lens 4, and meanwhile, the interference of beams in other directions can be avoided. Further, when the rotation driving member 2 drives the cylindrical single beam lens antenna system to rotate in the horizontal plane through the rotation member 11, the array antenna 3 can only transmit and receive the beam parallel to the axis of the metal hollow tube 5 through the cylindrical lens 4, so that the array antenna 3 can accurately scan and cover the beam at a corresponding angle, and the situation of beam distortion in the scanning process is effectively prevented.
In this embodiment, the end of the cylindrical radome 1 is connected to the rotating motor through a rotating member 11 composed of a rotating bearing or a sliding bearing, so that the rotating motor can rotate the cylindrical radome 1 in 360 ° on a plane, preferably, the cylindrical radome 1 is assembled with the array antenna 3 and the cylindrical lens 4, preferably, the array antenna 3 includes a radiation unit and a reflecting plate, the radiation unit is disposed on one side end surface of the reflecting plate, the cylindrical lens 4 is disposed opposite to the radiation unit, optionally, the cross-sectional area of the cylindrical lens 4 is less than or equal to three quarters of the area, so that the cylindrical lens 4 is prevented from excessively compressing the single wide beam electromagnetic wave radiated by the array antenna 3, resulting in that the narrow beam lens antenna horizontal plane-3 dB beam width disposed in the cylindrical radome 1 is too small, and a wide beam of the lens is realized. Optionally, the lenticular lens 4 is assembled by a plurality of substrate pieces 6 and the metal hollow tube 5, wherein the plurality of substrate pieces 6 are arranged along the axial direction of the cylindrical radome 1, and a plurality of assembly holes 61 are formed in the substrate pieces 6, the metal hollow tube 5 is arranged in the assembly holes 61, so that the metal hollow tube 5 is limited and fixed, optionally, the substrate pieces 6 are in a cylindrical structure, optionally, the cylindrical structure is provided with a plane parallel to the radiating unit, one side of the plane away from the radiating unit is provided with an arc surface 41, namely, the arc surface 41 and the plane enclose a cylindrical structure, and optionally, the cylindrical lens further comprises an insulating blank baffle 62, and the insulating blank baffle 62 is packaged on two sides of the substrate pieces 6 along the axial direction of the cylindrical lens 4, so that the metal hollow tube 5 is packaged in the assembly holes 61 of the substrate pieces 6. Preferably, the metal hollow tube 5 is disposed in a cylindrical structure formed by enclosing the two insulating blank partitions 62 and the cambered surfaces 41 and the planes of the two insulating blank partitions 62, so that the cylindrical lens 4 forms a one-dimensional photonic crystal, and the cylindrical single-beam lens antenna system is applied to a linear scene, and the array antenna 3 can only transmit and receive beams parallel to the axis of the metal hollow tube 5 through the cylindrical lens 4, so that electromagnetic waves radiated by the array antenna 3 are compressed into single-narrow-beam electromagnetic waves by using the cylindrical lens 4, and meanwhile, interference of beams in other directions can be avoided. Further, when the rotation driving member 2 drives the cylindrical single beam lens antenna system to rotate in the horizontal plane through the rotation member 11, the array antenna 3 can only transmit and receive the beam parallel to the axis of the metal hollow tube 5 through the cylindrical lens 4, so that the array antenna 3 can accurately scan and cover the beam at a corresponding angle, and the situation of beam distortion in the scanning process is effectively prevented.
Embodiment III:
Referring to fig. 1,2 and 3, the invention discloses a cylindrical single beam lens antenna system, which comprises a cylindrical radome 1, a rotary driving member 2, an array antenna 3 and a cylindrical lens 4, wherein, optionally, two ends of the cylindrical radome 1 are provided with rotary members 11; the rotary drive element 2 is connected to at least one of the rotary elements 11; the array antenna 3 is assembled in the cylindrical radome 1; the cylindrical lens 4 is assembled in the cylindrical radome 1 and is arranged on the radiation side of the array antenna 3, a cambered surface 41 is arranged on one side, close to the cylindrical radome 1, of the cylindrical lens 4, and a tangential surface 42 parallel to the array antenna 3 is arranged on one side, close to the array antenna 3, of the cylindrical lens 4; further, the rotation driving piece 2 is configured to drive the whole cylindrical single beam lens antenna to rotate through the rotation piece 11; the cylindrical lens 4 is used for compressing the single wide beam electromagnetic wave radiated by the array antenna 3 into a single narrow beam electromagnetic wave to form a narrow beam lens antenna arranged in the cylindrical radome 1, and when the rotary driving piece 2 drives the rotary piece 11, the narrow beam lens antenna can scan within a horizontal range of 360 degrees, and the beam cannot be distorted. Preferably, the cylindrical lens 4 is assembled and arranged on the radiation side of the array antenna 3, and the cambered surface 41 is arranged on the side, close to the cylindrical radome 1, of the cylindrical lens 4, and the tangential surface 42 parallel to the array antenna 3 is arranged on the side, close to the array antenna 3, of the cylindrical lens 4, so that the array antenna 3 and the cylindrical lens 4 can be accommodated in the cylindrical radome 1, the overall structure of the cylindrical single-beam lens antenna system is optimized, the wind resistance of the cylindrical single-beam lens antenna system can be effectively reduced, the wind resistance is improved, the cylindrical lens 4 is utilized to compress the single-beam electromagnetic waves radiated by the array antenna 3 into single-narrow-beam electromagnetic waves, the narrow-beam lens antenna arranged in the cylindrical radome 1 is formed, meanwhile, the cylindrical single-beam lens antenna system can be rotated by the rotary driving piece 2, and 360-degree scanning and coverage in a horizontal plane are realized, and the situation of beam distortion in the scanning process is effectively prevented.
Referring to fig. 2 and 8, optionally, the whole of the lenticular lens 4 is a cylinder, preferably, the structure of the lenticular lens 4 is a cylinder with a straight section arranged along an axial direction, optionally, the lenticular lens 4 is surrounded by a plane and an arc surface 41, specifically, the plane is parallel to the plane where the array antenna 3 is located, the arc surface 41 is arranged on the plane and surrounds the plane to form a cylindrical structure, so that the array antenna 3 and the lenticular lens 4 can be accommodated in the cylindrical radome 1, the whole structure of the cylindrical single beam lens antenna system is optimized, the wind resistance of the cylindrical single beam lens antenna system can be effectively reduced, and the wind resistance performance is improved.
Referring to fig. 2 and 3, alternatively, the radiation side of the array antenna 3 is the side of the array antenna 3 where the radiation unit is disposed. Preferably, the array antenna 3 includes a radiation unit and a reflection plate, the radiation unit is disposed on an end surface of one side of the reflection plate, the lenticular lens 4 is disposed opposite to the radiation unit, that is, the lenticular lens 4-the radiation unit of the array antenna 3-the reflection plate of the array antenna 3 are sequentially disposed along a radial direction of the cylindrical radome, and the lenticular lens 4, the radiation unit and the reflection plate are all disposed in the cylindrical radome 1, and the single wide beam electromagnetic wave radiated by the radiation unit of the array antenna 3 is compressed into a single narrow beam electromagnetic wave by using the lenticular lens 4, so as to form a narrow beam lens antenna disposed in the cylindrical radome 1.
Alternatively, the cylindrical radome 1 is made of a low dielectric constant material. Optionally, the low dielectric constant material may be PP, PE, PC or a modified material thereof, and optionally, the cylindrical radome 1 is made of the low dielectric constant material, so that the cylindrical radome 1 has a low permittivity, energy loss and signal distortion of signal transmission can be reduced, electrical performance and working stability of a narrow beam lens antenna disposed in the cylindrical radome 1 are improved, and dielectric constant of the material is inversely proportional to propagation speed of electromagnetic waves in the material, so that the cylindrical radome 1 made of the low dielectric constant material can reduce signal transmission delay, improve signal transmission speed and efficiency, and has important significance in fields such as communication and data transmission.
Optionally, the cross-sectional area of the lenticular lens 4 is less than or equal to three-quarters of the circular area. Optionally, the circle is concentric with the cross section of the lenticular lens 4 and has a radius equal to that of the cross section. Alternatively, by defining the cross-sectional area of the lenticular lens 4 to be less than or equal to three quarters of the circular area, the lenticular lens 4 is prevented from overcompression of the single wide beam electromagnetic wave radiated from the array antenna 3, resulting in an excessively small-3 dB beam width of the narrow beam lens antenna horizontal plane placed in the cylindrical radome 1, and a wide beam of the lens is realized. Preferably, the horizontal plane-3 dB beamwidth of the narrow beam lens antenna is less than 55 °.
Optionally, the cross-sectional area of the lenticular lens 4 is less than or equal to three-quarters of the cross-sectional area of the cylindrical radome 1. Optionally, the cross-sectional area of the lenticular lens 4 is limited to be smaller than or equal to three quarters of the cross-sectional area of the cylindrical radome 1, so that the cylindrical radome 1 can leave enough space for assembling the array antenna 3, the problem that the assembling difficulty of the array antenna 3 becomes large due to too small assembling space is avoided, or interference between the cylindrical lens 4 and the array antenna 3 assembled in the cylindrical radome 1 is avoided when the cylindrical lens 4 is assembled, and the cylindrical lens 4 and the array antenna 3 can be arranged in the cylindrical radome 1, so that the overall structure of the cylindrical single-beam lens antenna system is optimized, wind resistance of the cylindrical single-beam lens antenna system can be effectively reduced, and wind resistance performance is improved.
Optionally, the rotating member 11 comprises at least one rotating bearing and/or sliding bearing. Optionally, at least one end of the cylindrical radome 1 is assembled to a corresponding fixed bracket through the rotating member 11, so that the cylindrical radome 1 can rotate relative to the fixed bracket, optionally, the end of the cylindrical radome 1 can be rotatably connected with the fixed bracket through any one of a rotating bearing and a sliding bearing, optionally, the rotating driving member 2 can drive the cylindrical radome 1 and a narrow beam lens antenna arranged in the cylindrical radome 1 to rotate in a horizontal plane through the rotating member 11, thereby realizing 360-degree scanning.
Optionally, the rotary driving member 2 comprises at least one rotary electric machine. Optionally, a rotating motor is used to drive the rotating member 11 to drive the narrow beam lens antenna disposed in the cylindrical radome 1 to rotate in a horizontal plane through the cylindrical radome 1, so as to realize 360-degree scanning. Optionally, the two ends of the cylindrical radome 1 are rotatably connected with the corresponding fixed brackets through the rotating members 11, and each rotating member 11 is connected with at least one rotating motor, so that the rotating motors located outside the two ends of the cylindrical radome 1 simultaneously drive the cylindrical radome 1 and the narrow beam lens antenna placed in the cylindrical radome 1 to rotate in a horizontal plane, thereby realizing 360-degree scanning. Optionally, because the cylindrical radome 1 is the cylinder setting, can effectively reduce cylindrical single beam lens antenna system's windage, improve wind-resistance, reduce the energy consumption of rotating the in-process to even carry out the rotation of arbitrary angle and all can keep whole windage that receives even, avoid taking place windage inhomogeneous because of rotating, lead to the emergence of accidents such as partial subassembly is blown off or fracture.
Referring to fig. 5, 6, 7 and 8, optionally, the lenticular lens 4 includes a plurality of metal hollow tubes 5 and a substrate member 6, the metal hollow tubes 5 being disposed within the substrate member 6. Optionally, the substrate member 6 is used for limiting and fixing the plurality of metal hollow tubes 5, and preferably, the substrate member 6 is provided with a plurality of assembly holes 61, and the metal hollow tubes 5 are arranged in the assembly holes 61. That is, each of the mounting holes 61 is provided with one metal hollow tube 5, so that the metal hollow tube 5 is limited and fixed, so that the axis of the metal hollow tube 5 is perpendicular to the plane where the array antenna 3 is located, optionally, a plurality of substrate pieces 6 are arranged along the axis direction of the cylindrical radome 1, each of the substrate pieces 6 is provided with a plurality of mounting holes 61, each of the mounting holes 61 is provided with the metal hollow tube 5, wherein the substrate piece 6 is in a columnar structure, optionally, the columnar structure is provided with a plane parallel to the array antenna 3, and one side of the plane away from the array antenna 3 is provided with an arc surface 41, wherein the arc surface 41 and the plane enclose a columnar structure. Optionally, an insulating blank spacer 62 is further included, and the insulating blank spacer 62 is encapsulated on both sides of the substrate member 6 along the axial direction of the lenticular lens 4. That is, two insulating blank partitions 62 and the cambered surfaces 41 and the planes of the two insulating blank partitions 62 enclose a columnar structure, and the metal hollow tube 5 in the assembly hole 61 formed in the substrate member 6 is further limited and fixed by the insulating blank partitions 62, so that the metal hollow tube 5 is prevented from leaving the assembly hole 61, and optionally, one insulating blank partition 62 can be shared between two axially adjacent substrate members 6 of the columnar lens 4, that is, the metal hollow tube 5 assembled in the two substrate members 6 is limited and fixed simultaneously by one insulating blank partition 62 formed between the two adjacent substrate members 6. When assembling, the insulating blank partition plates 62 can be firstly encapsulated at two sides of the first substrate piece 6 along the axial direction, so that the metal hollow tube 5 is encapsulated in the assembling hole 61 of the first substrate piece 6, then the second substrate piece 6 is connected with the insulating blank partition plates 62 of the first substrate piece 6, then the insulating blank partition plates 62 are assembled at one side of the second substrate piece 6 far away from the first substrate piece 6, so that the metal hollow tube 5 is encapsulated in the assembling hole 61 of the second substrate piece 6, then the third substrate piece 6 is assembled, and the steps are circulated, so that a plurality of substrate pieces 6 and the metal hollow tube 5 are assembled into the cylindrical lens 4; or the insulating blank partition plates 62 are adopted to encapsulate two sides of a plurality of substrate pieces 6 to form a plurality of independent modules, and then the plurality of independent modules are arranged and combined along the axial direction of the cylindrical lens 4 to assemble the cylindrical lens 4. Alternatively, the substrate member 6 is made of a lightweight foam material, preferably, PP, PS, PE, or the like.
Preferably, a plurality of the metal hollow tubes 5 are encapsulated in the cylindrical lens 4 through the substrate 6, so that the cylindrical lens 4 forms a one-dimensional photonic crystal, and the cylindrical single-beam lens antenna system is applied to a linear scene, the array antenna 3 can only transmit and receive beams parallel to the axis of the metal hollow tubes 5 through the cylindrical lens 4, and the electromagnetic waves radiated by the array antenna 3 are compressed into single-narrow-beam electromagnetic waves by utilizing the cylindrical lens 4, and meanwhile, the interference of beams in other directions can be avoided. Further, when the rotation driving member 2 drives the cylindrical single beam lens antenna system to rotate in the horizontal plane through the rotation member 11, the array antenna 3 can only transmit and receive the beam parallel to the axis of the metal hollow tube 5 through the cylindrical lens 4, so that the array antenna 3 can accurately scan and cover the beam at a corresponding angle, and the situation of beam distortion in the scanning process is effectively prevented.
Referring to fig. 4, optionally, the array antenna 3 is provided with a phase shifter 7, a transmission mechanism 71 is connected to the phase shifter 7, and a remote control driving unit is connected to the transmission mechanism 71. Alternatively, the array antenna 3 includes a radiation unit and a reflection plate, and the phase shifter 7 may be disposed on the same side of the reflection plate as the radiation unit, or the phase shifter 7 and the radiation unit may be disposed on both sides of the reflection plate, respectively. Optionally, the transmission mechanism 71 is a motor, and the motor can drive the phase shifter 7 to shift phase through a transmission rod, and optionally, the remote control driving unit may be an RCU remote control driving unit, and may receive a control signal transmitted from the outside, so as to drive the transmission mechanism 71 to perform an action, drive the phase shifter 7 to shift phase, and realize scanning in a vertical direction.
In this embodiment, the end of the cylindrical radome 1 is connected to the rotating motor through a rotating member 11 composed of a rotating bearing or a sliding bearing, so that the rotating motor can rotate the cylindrical radome 1 in 360 ° on a plane, preferably, the cylindrical radome 1 is assembled with the array antenna 3 and the cylindrical lens 4, preferably, the array antenna 3 includes a radiation unit and a reflecting plate, the radiation unit is disposed on one side end surface of the reflecting plate, the cylindrical lens 4 is disposed opposite to the radiation unit, optionally, the cross-sectional area of the cylindrical lens 4 is less than or equal to three quarters of the area, so that the cylindrical lens 4 is prevented from excessively compressing the single wide beam electromagnetic wave radiated by the array antenna 3, resulting in that the narrow beam lens antenna horizontal plane-3 dB beam width disposed in the cylindrical radome 1 is too small, and a wide beam of the lens is realized. Optionally, the lenticular lens 4 is assembled by a plurality of substrate pieces 6 and the metal hollow tube 5, wherein the plurality of substrate pieces 6 are arranged along the axial direction of the cylindrical radome 1, and a plurality of assembly holes 61 are formed in the substrate pieces 6, the metal hollow tube 5 is arranged in the assembly holes 61, so that the metal hollow tube 5 is limited and fixed, optionally, the substrate pieces 6 are in a cylindrical structure, optionally, the cylindrical structure is provided with a plane parallel to the radiating unit, one side of the plane away from the radiating unit is provided with an arc surface 41, namely, the arc surface 41 and the plane enclose a cylindrical structure, and optionally, the cylindrical lens further comprises an insulating blank baffle 62, and the insulating blank baffle 62 is packaged on two sides of the substrate pieces 6 along the axial direction of the cylindrical lens 4, so that the metal hollow tube 5 is packaged in the assembly holes 61 of the substrate pieces 6. Preferably, the metal hollow tube 5 is disposed in a cylindrical structure formed by enclosing the cambered surfaces 41 and the planes of the two insulating hollow tube 62 and the two insulating hollow tube 62, so that the cylindrical lens 4 forms a one-dimensional photonic crystal, the cylindrical single-beam lens antenna system is applied to a linear scene, the array antenna 3 can only transmit and receive beams parallel to the axis of the metal hollow tube 5 through the cylindrical lens 4, the single wide-beam electromagnetic wave radiated by the array antenna 3 is compressed into a single narrow-beam electromagnetic wave by using the cylindrical lens 4, meanwhile, the interference of beams in other directions can be avoided, and meanwhile, when the rotary driving member 2 drives the narrow-beam lens antenna to rotate in a horizontal plane through the rotary member 11, the array antenna 3 can only transmit and receive beams parallel to the axis of the metal hollow tube 5 through the cylindrical lens 4, so that the array antenna 3 can accurately scan and cover the beams at corresponding angles, the situation that the beams appear in the scanning process is effectively prevented, and the vertical plane can also be driven by the remote control unit to drive the signal to perform the scanning system, and the vertical plane can be driven by the remote control unit to perform the vertical plane, and the vertical plane can be satisfied, and the vertical plane is scanned by the vertical plane is effectively and the vertical plane is covered by the scanning system.
The technical means disclosed by the scheme of the invention is not limited to the technical means disclosed by the embodiment, and also comprises the technical scheme formed by any combination of the technical features. It should be noted that modifications and adaptations to the invention may occur to one skilled in the art without departing from the principles of the present invention and are intended to be within the scope of the present invention.
Claims (13)
1. A cylindrical single beam lens antenna system, comprising:
The antenna comprises a cylindrical antenna housing (1), wherein rotating pieces (11) are arranged at two ends of the cylindrical antenna housing (1);
A rotary drive (2), the rotary drive (2) being connected to at least one of the rotary members (11);
-an array antenna (3), the array antenna (3) being fitted within the cylindrical radome (1);
the cylindrical lens (4) is assembled in the cylindrical antenna housing (1) and is arranged on the radiation side of the array antenna (3), one side, close to the cylindrical antenna housing (1), of the cylindrical lens (4) is provided with a cambered surface (41), and one side, close to the array antenna (3), of the cylindrical lens (4) is provided with a tangential surface (42) parallel to the array antenna (3);
The rotary driving piece (2) is used for driving the whole cylindrical single-beam lens antenna to rotate through the rotary piece (11);
The cylindrical lens (4) is used for compressing the single wide beam electromagnetic wave radiated by the array antenna (3) into the single narrow beam electromagnetic wave to form the narrow beam lens antenna arranged in the cylindrical antenna housing (1), and when the rotary driving piece (2) drives the rotary piece (11), the narrow beam lens antenna can scan within a horizontal range of 360 degrees, and the beam cannot be distorted.
2. The cylindrical single beam lens antenna system of claim 1, wherein: the cylindrical radome (1) is made of a low dielectric constant material.
3. The cylindrical single beam lens antenna system of claim 1, wherein: the cross-sectional area of the lenticular lens (4) is less than or equal to three-quarters of the circular area.
4. The cylindrical single beam lens antenna system of claim 1, wherein: the cross-sectional area of the lenticular lens (4) is less than or equal to three-quarters of the cross-sectional area of the cylindrical radome (1).
5. The cylindrical single beam lens antenna system of claim 1, wherein: the cylindrical lens (4) is composed of a plurality of metal hollow tubes (5).
6. The cylindrical single beam lens antenna system of claim 1, wherein: the cylindrical lens (4) comprises a plurality of metal hollow tubes (5) and a substrate piece (6), wherein the metal hollow tubes (5) are arranged in the substrate piece (6).
7. The cylindrical single beam lens antenna system of claim 6, wherein: the substrate (6) is made of a lightweight foam material.
8. The cylindrical single beam lens antenna system of claim 6, wherein: the substrate (6) is provided with a plurality of assembly holes (61), and the metal hollow tube (5) is arranged in the assembly holes (61).
9. The cylindrical single beam lens antenna system of claim 6, wherein: the lens further comprises an insulating blank partition board (62), wherein the insulating blank partition board (62) is packaged on two sides of the substrate piece (6) along the axial direction of the cylindrical lens (4).
10. The cylindrical single beam lens antenna system of claim 1, wherein: the horizontal plane-3 dB beamwidth of the narrow beam lens antenna is less than 55 °.
11. The cylindrical single beam lens antenna system of claim 1, wherein: the rotor (11) comprises at least one rotor bearing and/or a sliding bearing.
12. The cylindrical single beam lens antenna system of claim 1, wherein: the rotary drive (2) comprises at least one rotary electric machine.
13. The cylindrical single beam lens antenna system of claim 1, wherein: the array antenna (3) is provided with a phase shifter (7), the phase shifter (7) is connected with a transmission mechanism (71), and the transmission mechanism (71) is connected with a remote control driving unit.
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| CN202410146879.4A CN117691329B (en) | 2024-02-02 | 2024-02-02 | Cylindrical single-beam lens antenna system |
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| CN202410146879.4A CN117691329B (en) | 2024-02-02 | 2024-02-02 | Cylindrical single-beam lens antenna system |
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| CN117691329B true CN117691329B (en) | 2024-05-03 |
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| CN117691329A (en) | 2024-03-12 |
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