UWB base station antenna for storage yard management

Abstract

The application discloses a UWB base station antenna for storage yard management, which comprises a medium rod, a straight copper rod is coaxially inserted in the medium rod, a plurality of metal connecting pipes and a plurality of isolation sheets are sequentially sleeved on the outer peripheral surface of the medium rod along the axial direction of the medium rod, and the straight copper rod and the metal connecting pipes are insulated and isolated by the isolation sheets; the medium rod is also provided with a plurality of radiation units, each radiation unit comprises four radiation bodies, and the radiation bodies are uniformly arranged around the axis of the medium rod; the included angle between any two adjacent radiators is 45 degrees along the axis direction of the dielectric rod; any two opposite radiators are orthogonally arranged along the radial direction of the dielectric rod; the straight copper rod and the metal connecting pipes are connected in series through the radiators. According to the invention, the radiation unit is split into members with single structures, and equipment assembly is realized in an assembling manner, so that the structural precision of the radiation unit is effectively ensured, high-quality circularly polarized electromagnetic waves are radiated, the influence caused by a multipath effect is suppressed, and the positioning precision is improved.

Description

Technical Field

[0001] The present application relates to the technical field of communication equipment, and in particular to a UWB base station antenna for yard management. Background Art

[0002] PC components refer to concrete products that are processed and produced in a standardized and mechanized manner in a factory. In contrast, traditional cast-in-place concrete requires on-site molding, on-site pouring, and on-site maintenance. Precast concrete parts are widely used in construction, transportation, water conservancy and other fields, and play an important role in the national economy.

[0003] Before PC components are transferred to the construction site, they are generally placed in a special yard. Since there are many PC components of various types and specifications in the yard, in order to improve the efficiency of finding PC components, UWB technology is generally used for positioning in the existing technology. However, when there are a large number of PC components in the yard and the yard environment is complex, the multipath effect of UWB technology is prominent, and the emission and refraction of electromagnetic waves seriously affect the positioning accuracy. Summary of the invention

[0004] The main purpose of this application is to provide a UWB base station antenna for yard management, aiming to solve the defect of poor positioning accuracy in the prior art.

[0005] This application achieves the above objectives through the following technical solutions:

[0006] A UWB base station antenna for yard management, comprising a dielectric rod;

[0007] A straight copper rod, the straight copper rod is inserted into the dielectric rod, and the straight copper rod is coaxial with the dielectric rod;

[0008] A plurality of metal connecting tubes, along the axial direction of the dielectric rod, each of the metal connecting tubes is sequentially sleeved on the circumference of the dielectric rod;

[0009] A plurality of isolation plates, each of which is coaxially sleeved on the circumference of the dielectric rod, and each of which insulates and isolates the straight copper rod and each of the metal connecting tubes;

[0010] A plurality of radiation units, each of which includes four radiators, which are evenly arranged around the axis of the dielectric rod; along the axial direction of the dielectric rod, the angle between any two adjacent radiators is 45°; along the radial direction of the dielectric rod, any two relatively opposite radiators are orthogonally arranged; the straight copper rod and each of the metal connecting tubes are connected in series through each of the radiators.

[0011] Optionally, the straight copper rod includes a metal rod and a metal plate, and the metal rods are spliced ​​and connected to each other in a T-shaped structure.

[0012] Optionally, the dielectric rod is provided with a plug hole coaxial therewith, the metal rod is inserted into the plug hole, and the metal plate is provided with a plurality of connection holes adapted to the radiator.

[0013] Optionally, the metal connecting pipe includes a metal pipe, both ends of which are provided with metal flange plates, and the metal pipe is integrally connected to the two metal flange plates.

[0014] Optionally, both metal flange plates are provided with connection holes for connecting the radiator.

[0015] Optionally, the height of the metal connecting tube is the propagation wavelength of the working center frequency of the base station antenna in the dielectric rod.

[0016] Optionally, the radiator includes a radiating column, both ends of which are bent to form connecting pins; and both connecting pins are provided with plug-in blocks adapted to the connecting holes.

[0017] Optionally, the radiation column is an arc-shaped or straight-line structure.

[0018] Optionally, the dielectric rod and the isolation sheet are both made of Teflon.

[0019] Optionally, the straight copper rod, the metal connecting tube and the radiator are all made of copper.

[0020] Compared with the prior art, this application has the following beneficial effects:

[0021] The present application includes a dielectric rod, a straight copper rod is coaxially inserted in the dielectric rod, and a plurality of metal connecting tubes are sleeved in sequence on the outer peripheral surface of the dielectric rod along the axial direction of the dielectric rod, and a plurality of isolation plates are sleeved on the dielectric rod, and each isolation plate insulates and isolates the straight copper rod and each metal connecting tube; a plurality of radiation units are also arranged on the dielectric rod, and the radiation units include 4 radiators, and each radiator is evenly arranged around the axis of the dielectric rod; along the axial direction of the dielectric rod, the angle between any two adjacent radiators is 45°; along the radial direction of the dielectric rod, any two relatively radiators are orthogonally arranged; the straight copper rod and each metal connecting tube are connected in series through each radiator;

[0022] In the prior art, an integrated stamping process is generally used to manufacture radiating antennas. In the above-mentioned radiating antennas, there are a large number of eccentric structures, and their appearance and structure are complex. Limited by the processing technology, the radiating antennas actually produced have large errors in angle control. Therefore, the radiation pattern of the circularly polarized antenna is difficult to achieve horizontal radiation, and its circular polarization axis is poor. However, the present application disassembles each radiating unit into a separate component, and assembles the radiating unit through different equipment components, thereby simplifying the complex structure into multiple components. At the same time, the structure of each component is relatively simple, which not only reduces the difficulty of its molding, but also improves the molding accuracy of each component, thereby ensuring that the four radiators are evenly arranged around the axis of the dielectric rod. At the same time, along the axial direction of the dielectric rod, the angle between any two adjacent radiators is 45°; along the radial direction of the dielectric rod, any two relatively radiators are orthogonally arranged, ensuring the structural accuracy of the entire device;

[0023] In the above-mentioned radiation unit of the present application, if the two relative radiators are regarded as a dipole, the currents at their edges are perpendicular to each other and have a phase difference of 90 degrees. At the same time, the dipoles composed of the two groups of relative radiators are also perpendicular to each other and have a phase difference of 90 degrees. That is, there are mutually orthogonal line currents with a phase difference of 90 degrees in the radiators, which meet the conditions of circularly polarized radiation. Therefore, each radiation unit of the present application will radiate high-quality circularly polarized electromagnetic waves, thereby effectively suppressing the influence of the multipath effect through circularly polarized electromagnetic waves, thereby improving the positioning accuracy.

[0024] Secondly, the radiating units in the prior art are difficult to be serially fed into an array and cannot form a circularly polarized antenna with a higher gain. The general gain is only 2-3dBi. In the technical solution described in the present application, the basis of the serially fed array is constructed by vertically arranged dielectric rods, that is, the serially fed array of multiple radiating units is realized by arranging them in sequence along the axis of the dielectric rods. Therefore, the gain of the base station antenna described in the present application can reach 5-8dBi, further improving the detectable range and positioning accuracy of the base station antenna. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic structural diagram of a UWB base station antenna for yard management provided in Embodiment 1 of the present application;

[0026] Figure 2 An exploded diagram of a UWB base station antenna for yard management provided in Embodiment 1 of the present application;

[0027] Figure 3 It is a schematic diagram of the straight copper rod structure;

[0028] Figure 4 It is a schematic diagram of the metal connecting pipe structure;

[0029] Figure 5is a schematic diagram of the radiator structure;

[0030] Figure markings: 1-dielectric rod, 2-straight copper rod, 3-metal connecting tube, 4-isolating plate, 5-radiator, 6-plug hole, 7-connecting hole, 201-metal rod, 202-metal plate, 301-metal tube, 302-metal flange plate, 501-radiating column, 502-connecting foot, 503-plug block.

[0031] The purpose, features and advantages of this application will be further described in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0034] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in the field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0036] Implementation Method 1

[0037] Reference Figures 1 to 5 This embodiment is an optional embodiment of the present application, which discloses a UWB base station antenna for yard management, including a dielectric rod 1, the dielectric rod 1 is a cylindrical structure, the dielectric rod 1 is made of Teflon or other dielectrics with stable dielectric constant and low loss, and a plug hole 6 is provided in the middle of the dielectric rod 1, and the plug hole 6 is coaxial with the dielectric rod 1;

[0038] The base station antenna also includes a straight copper rod 2, which includes a metal rod 201 and a metal plate 202. The metal plate 202 is arranged on the top of the metal rod 201. The appearance of the metal rod 201 is the same as that of the plug hole 6. When installing, the metal rod 201 is inserted into the plug hole 6. The metal rod 201 and the metal plate 202 are connected in a T-shaped structure. The metal rod 201 and the metal plate 202 are coaxial. The metal rod 201 and the metal plate 202 are an integrally formed structure or are connected by welding or the like. After installation, the bottom surface of the metal plate 202 and the top surface of the dielectric rod 1 are in contact with each other.

[0039] The base station antenna also includes a plurality of metal connecting tubes 3, wherein the metal connecting tubes 3 include a metal tube 301, both ends of the metal tube 301 are provided with metal flange plates 302, the metal tube 301 is integrally connected with the two metal flange plates 302, and the metal tube 301 and the two metal flange plates 302 are coaxially arranged;

[0040] The base station antenna further comprises a plurality of isolation plates 4, each of which is a circular ring structure, and the inner wall thereof is in contact with the outer peripheral surface of the dielectric rod 1;

[0041] During assembly, firstly, the first-level metal connecting tube 3 is sleeved on the dielectric rod 1, the inner wall of the metal connecting tube 3 is fitted with the peripheral surface of the dielectric rod 1, and the metal connecting tube 3 is coaxial with the dielectric rod 1; then, the first-level isolation plate 4 is sleeved on the dielectric rod 1, and the bottom surface of the isolation plate 4 is fitted with the metal flange plate 302 of the metal connecting tube 3; then, all isolation plates of all metal connecting tubes 3 are sleeved alternately in sequence along the axial direction of the dielectric rod 1, and finally, the straight copper rod 2 is inserted into the dielectric rod 1, and the isolation plate 4 at the top isolates the metal plate 202 of the straight copper rod 2 from the metal flange plate 302 of the metal connecting tube 3;

[0042] The metal plate 202 and each of the metal flange plates 302 are provided with a connection hole 7;

[0043] By setting the isolation sheet 4, a plurality of mutually insulated metal connecting tubes 3 can be set on the dielectric rod 1, thereby forming a plurality of series-fed antenna units;

[0044] It should also be pointed out that the height of the metal connecting tube 3 is the propagation wavelength of the working center frequency of the base station antenna in the dielectric rod 1. The above-mentioned structural setting can make the phase of the current at each isolation plate 4 position the same, so as to ensure that the electromagnetic waves radiated by each radiation unit are in the same phase.

[0045] The base station antenna also includes a plurality of radiation units, each of which has the same structure and includes four radiators 5. Each of the radiators 5 includes a radiation column 501. The radiation column 501 is in an arc or linear structure. Both ends of the radiation column 501 are bent on the same side, and the bent ends are connecting pins 502. At the same time, plug-in blocks 503 are provided on the two connecting pins 502.

[0046] Around the axis of the dielectric rod 1, the radiators 5 are evenly arranged, that is, around the axis of the radiator 5, the rotation angle between any two adjacent radiators 5 is 90°; along the axis direction of the dielectric rod 1, the angle between any two adjacent radiators 5 is 45°; along the radial direction of the dielectric rod 1, any two relatively opposite radiators 5 are orthogonally arranged;

[0047] When the straight copper rod 2 and each metal connecting tube 3 are installed in series through each radiator 5, the two plug-in blocks 503 on the same radiator 5 are respectively inserted into the connecting holes 7 on two adjacent metal connecting tubes 3, so that the two adjacent metal connecting tubes 3 are connected in series through the radiating unit, and the metal connecting tube 3 at the top and the straight copper rod 2 are also connected in series through the radiating unit;

[0048] The straight copper rod 2, the metal connecting tube 3 and the radiator 5 are all made of copper.

[0049] Compared with the prior art, the present application disassembles each radiation unit into a separate component, and obtains the radiation unit by assembling different equipment components, thereby simplifying the complex structure into multiple components. At the same time, the structure of each component is relatively simple, which not only reduces the difficulty of its molding, but also improves the molding accuracy of each component, thereby ensuring that the four radiators are evenly arranged around the axis of the dielectric rod. At the same time, along the axial direction of the dielectric rod, the angle between any two adjacent radiators is 45°; along the radial direction of the dielectric rod, any two relatively opposite radiators are orthogonally arranged, thereby ensuring the structural accuracy of the entire device;

[0050] In the above-mentioned radiation unit of the present application, if the two relative radiators are regarded as a dipole, the currents at their edges are perpendicular to each other and have a phase difference of 90 degrees. At the same time, the dipoles composed of the two groups of relative radiators are also perpendicular to each other and have a phase difference of 90 degrees. That is, there are mutually orthogonal line currents with a phase difference of 90 degrees in the radiators, which meet the conditions of circularly polarized radiation. Therefore, each radiation unit of the present application will radiate high-quality circularly polarized electromagnetic waves, thereby effectively suppressing the influence of the multipath effect through circularly polarized electromagnetic waves, thereby improving the positioning accuracy.

[0051] Secondly, the radiating units in the prior art are difficult to be serially fed into an array and cannot form a circularly polarized antenna with a higher gain. The general gain is only 2-3dBi. In the technical solution described in the present application, the basis of the serially fed array is constructed by vertically arranged dielectric rods, that is, the serially fed array of multiple radiating units is realized by arranging them in sequence along the axis of the dielectric rods. Therefore, the gain of the base station antenna described in the present application can reach 5-8dBi, further improving the detectable range and positioning accuracy of the base station antenna.

[0052] The above are only preferred embodiments of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A UWB base station antenna for yard management, characterized in that: It comprises a dielectric rod (1); A straight copper rod (2), the straight copper rod (2) being inserted into the dielectric rod (1), the straight copper rod (2) being coaxial with the dielectric rod (1); A plurality of metal connecting tubes (3), each of which is sequentially sleeved on the circumference of the dielectric rod (1) along the axial direction of the dielectric rod (1); A plurality of isolation plates (4), each of the isolation plates (4) being coaxially sleeved on the circumferential surface of the dielectric rod (1), and each of the isolation plates (4) insulating and isolating the straight copper rod (2) and each of the metal connecting tubes (3); A plurality of radiation units, each of which comprises four radiation bodies (5), each of which is evenly arranged around the axis of the dielectric rod (1); along the axis direction of the dielectric rod (1), the angle between any two adjacent radiation bodies (5) is 45°; along the radial direction of the dielectric rod (1), any two relatively connected radiation bodies (5) are orthogonally arranged; and the straight copper rod (2) and each of the metal connecting tubes (3) are connected in series via each of the radiation bodies (5).

2. The UWB base station antenna for yard management according to claim 1, characterized in that: The straight copper rod (2) comprises a metal rod (201) and a metal plate (202), and the metal rods (201) are spliced ​​and connected to each other in a T-shaped structure.

3. The UWB base station antenna for yard management according to claim 2, characterized in that: The dielectric rod (1) is provided with a coaxial plug hole (6), the metal rod (201) is inserted into the plug hole (6), and the metal plate (202) is provided with a plurality of connection holes (7) adapted to the radiator (5).

4. The UWB base station antenna for yard management according to claim 1, characterized in that: The metal connecting pipe (3) comprises a metal pipe (301), both ends of the metal pipe (301) are provided with metal flange plates (302), and the metal pipe (301) and the two metal flange plates (302) are integrally connected.

5. The UWB base station antenna for yard management according to claim 4, characterized in that: The two metal flange plates (302) are both provided with connection holes (7) for connecting the radiator (5).

6. The UWB base station antenna for yard management according to claim 4, characterized in that: The height of the metal connecting tube (3) is the propagation wavelength of the working center frequency of the base station antenna in the dielectric rod (1).

7. The UWB base station antenna for yard management according to claim 3, characterized in that: The radiator (5) comprises a radiating column (501), both ends of which are bent to form connecting pins (502); and both connecting pins (502) are provided with plug-in blocks (503) adapted to the connecting holes (7).

8. The UWB base station antenna for storage yard management according to claim 7, characterized in that: The radiation column (501) is an arc-shaped or linear structure.

9. The UWB base station antenna for yard management according to claim 1, characterized in that: The dielectric rod (1) and the isolation plate (4) are both made of Teflon.

10. The UWB base station antenna for yard management according to claim 1, characterized in that: The straight copper rod (2), the metal connecting tube (3) and the radiator (5) are all made of copper.

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