An ultra-wideband antenna
By employing a stepped radiator and reflector array design in the ultra-wideband antenna, combined with a mounting post and fixing block, the problem of antenna signal direction being affected by temperature changes was solved, achieving both signal enhancement and protection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU TIANQIN WIRELESS TECHNOLOGY CO LTD
- Filing Date
- 2025-10-23
- Publication Date
- 2026-07-28
AI Technical Summary
The radiation direction of existing ultra-wideband antennas is easily affected by changes in ambient temperature, causing signal direction to deviate.
An ultra-wideband antenna was designed, which uses four sets of radiators, namely low-frequency and high-frequency antennas, to radiate in a stepped manner. It is also connected to an auxiliary reflective array by a reflector plate, and is fixed by a mounting post and a fixing block. It is protected by a radiation protection sleeve, and an insulating pad is set at the bottom of the mounting plate to achieve insulation and grounding.
It effectively avoids signal blind spots, improves horizontal omnidirectional deviation, achieves signal enhancement, and reduces the risk of radiator displacement and detachment through insulation and protection measures.
Smart Images
Figure CN224570414U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ultra-wideband antenna technology, specifically an ultra-wideband antenna. Background Technology
[0002] Ultra-wideband (UWB) antennas are a class of antennas capable of effective radiation / reception over an extremely wide frequency range, typically with a relative bandwidth ≥20% or an absolute bandwidth ≥500MHz. The FCC-defined civilian UWB band is 3.1-10.6GHz. Their core characteristics are wide bandwidth, low power consumption, and high time resolution. They are widely used in short-range high-speed communication, precise positioning (such as indoor positioning), and imaging (such as through-wall radar). Their design requires balancing multiple performance indicators, including bandwidth, gain, size, impedance matching, and radiation characteristics, making it a complex system engineering project.
[0003] In the prior art, such as the low-profile ultra-wideband omnidirectional antenna disclosed in CN210628485U, there is an antenna base plate, a metal disk, and an antenna assembly disposed between the antenna base plate and the metal disk. The antenna assembly includes at least one sheet-like or block-like antenna plate. The antenna plate includes a dielectric substrate and a radiating patch formed on the dielectric substrate between its bottom and top edges. One side of the radiating patch is disposed close to the top edge of the antenna plate, and the width of the radiating patch gradually narrows from the top edge to the bottom edge. By designing the radiating patch to be narrower as it is closer to the antenna base plate, compared to a rectangular patch, the antenna has a wider impedance bandwidth, thus providing better broadband performance.
[0004] Existing antennas, by designing the radiating patch to be as narrow as possible when it is close to the antenna base, achieve a wider impedance bandwidth compared to rectangular patches, thus providing better broadband performance. However, since the antenna's radiation direction depends entirely on the mechanical position of the radiator, even slight deformations of the radiator due to changes in ambient temperature, such as the thermal expansion and contraction of a metal rod, can cause a direct shift in signal direction. Utility Model Content
[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.
[0006] Given the defect in the existing technology that the radiation direction of the antenna depends entirely on the mechanical position of the radiator, once the ambient temperature changes and causes slight deformation of the radiator, such as thermal expansion and contraction of a metal rod, the signal direction will be directly deflected.
[0007] To solve the above problems, this utility model provides the following technical solution:
[0008] An ultra-wideband antenna includes a mounting base, a protective shell welded and fixed to the upper surface of the mounting base, fixing bolts installed inside the mounting base, a signal transmitting component for transmitting signals inside the protective shell, and a signal amplification component for amplifying signals at the upper end of the protective shell.
[0009] The signal enhancement component includes a fixing plate, a limiting bolt, a mounting post, a fixing block, a reinforcing plate, and a reflector. The fixing plate is installed on the upper surface of the protective shell, and the upper surface of the fixing plate is fitted with a limiting bolt that is threadedly connected to the protective shell. Four reinforcing plates are installed at the upper end of the protective shell, and a reflector is integrally fixed to the outer surface of each of the four reinforcing plates.
[0010] As a further improvement of this utility model: the interior of the protective shell has a through-hole mounting column, and the outer surface of the mounting column is fitted with four fixing blocks, all of which are welded to the reinforcing plate.
[0011] As a further embodiment of this utility model: the signal transmitting assembly includes a mounting plate, connectors, radiators, a radiation protection sleeve, limiting components, limiting holes, fixing screws, connecting seats, insulating gaskets, and a grounding base. The mounting plate is disposed inside the protective shell, and four sets of connectors are fixed at equal intervals on the upper surface of the mounting plate.
[0012] As a further improvement of this utility model: the upper surfaces of the four sets of connectors are all threaded with radiators, and the outer surfaces of the radiators are fitted with radiation protection sleeves.
[0013] As a further improvement of this utility model: the external connection of the radiation protection sleeve has a limiting member, and the upper surface of the limiting member has a limiting hole corresponding to the radiation protection sleeve.
[0014] As a further improvement of this utility model: a fixing screw is installed at the upper end of the limiting member, and the end of the fixing screw is threadedly connected to a connecting seat that is welded to the mounting plate.
[0015] As a further improvement of this utility model: an insulating gasket is installed on the lower surface of the mounting plate, and the insulating gasket is bonded to the mounting plate.
[0016] As a further embodiment of this utility model: a grounding base that is fixedly connected to the mounting base is adhered to the lower surface of the insulating gasket, and the grounding base is electrically connected to the mounting plate.
[0017] Compared with the prior art, the beneficial effects of this utility model are:
[0018] 1. In this utility model, the four radiators are low-frequency antennas and high-frequency antennas, which radiate in a stepped manner, corresponding to frequency bands from low to high. No circuit coupling is required. The reflector is fixed by a fixing block set on the mounting column. The four reflectors form an auxiliary reflection array, which can avoid the signal blind zone of a single reflector, improve the omnidirectional deviation of the horizontal plane, and thus achieve the effect of signal enhancement.
[0019] 2. This utility model protects the radiator by placing a radiation protection sleeve over it, and then fixing the mounting plate by tightening the limiting bolts on the mounting plate. The insulating gasket at the bottom of the mounting plate provides insulation. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of an ultra-wideband antenna;
[0021] Figure 2 This is a three-dimensional structural diagram of a mounting base in an ultra-wideband antenna;
[0022] Figure 3 A three-dimensional structural diagram of a limiting component in an ultra-wideband antenna;
[0023] Figure 4 This is a three-dimensional structural diagram of a mounting plate in an ultra-wideband antenna.
[0024] Figure 5 This is a side view of the mounting base in an ultra-wideband antenna.
[0025] In the diagram: 1. Mounting base; 2. Protective shell; 3. Fixing bolt; 4. Mounting plate; 41. Connector; 42. Radiator; 43. Radiation protection sleeve; 44. Limiting component; 45. Limiting hole; 46. Fixing screw; 47. Connecting seat; 48. Insulating gasket; 49. Grounding base; 5. Fixing plate; 51. Limiting bolt; 52. Mounting column; 53. Fixing clip; 54. Reinforcing plate; 55. Reflector. Detailed Implementation
[0026] To make the above-mentioned objectives, features and advantages of this utility model more readily understood, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0028] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.
[0029] Please see Figures 1-5 This embodiment provides an ultra-wideband antenna, which includes a mounting base 1, a protective shell 2 welded and fixed to the upper surface of the mounting base 1, a fixing bolt 3 installed inside the mounting base 1, a signal transmitting component for transmitting signals inside the protective shell 2, and a signal amplification component for amplifying signals at the upper end of the protective shell 2.
[0030] The signal enhancement assembly includes a fixing plate 5, a limiting bolt 51, a mounting post 52, a fixing block 53, a reinforcing plate 54, and a reflector 55. The fixing plate 5 is installed on the upper surface of the protective shell 2. The upper surface of the fixing plate 5 is fitted with a limiting bolt 51 that is threadedly connected to the protective shell 2. Four reinforcing plates 54 are installed at the upper end of the protective shell 2. The outer surfaces of the four reinforcing plates 54 are integrally fixed with reflectors 55.
[0031] Specifically, the protective shell 2 has a mounting post 52 running through its interior, and four fixing blocks 53 are snapped onto the outer surface of the mounting post 52. All four fixing blocks 53 are welded to the reinforcing plate 54.
[0032] Furthermore, the four sets of radiators 42 are low-frequency antennas and high-frequency antennas, respectively, and radiate in a stepped manner, with the corresponding frequency bands from low to high, without the need for circuit coupling. The reflector 55 set on the reinforcing plate 54 is made of brass or aluminum alloy. The reinforcing plate 54 is positioned by the fixing block 53 set on the machine mounting column 52, so that the radiator 42 guides the reflected signal to the target direction.
[0033] In use, the mounting base 1 is placed in a suitable position. The fixing bolts 3 on the mounting base 1 can be tightened into the appropriate position using a tool to fix the device. The four sets of radiators 42 are low-frequency antennas and high-frequency antennas, which radiate in a stepped manner, corresponding to frequency bands from low to high, without the need for circuit coupling. The reflector 55 on the reinforcing plate 54 is made of brass or aluminum alloy. The fixing block 53 on the mounting post 52 limits the reinforcing plate 54, so that the radiator 42 guides the reflected signal to the target direction. The four reflectors 55 form an auxiliary reflection array, which can avoid the signal blind zone of a single reflector 55, improve the horizontal omnidirectional deviation, and thus achieve the effect of signal enhancement.
[0034] In summary, when this ultra-wideband antenna is in use, the four radiators 42 are low-frequency and high-frequency antennas, respectively, and radiate in a stepped manner, corresponding to frequency bands from low to high. No circuit coupling is required. The reflector 55 is fixed by the fixing block 53 set on the mounting post 52. The four reflectors 55 form an auxiliary reflection array, which can avoid the signal blind zone of a single reflector 55, improve the horizontal omnidirectional deviation, and thus achieve the effect of signal enhancement.
[0035] The signal transmitting assembly includes a mounting plate 4, connectors 41, radiators 42, radiation protection sleeves 43, limiting members 44, limiting holes 45, fixing screws 46, connecting seats 47, insulating gaskets 48, and grounding bases 49. The mounting plate 4 is located inside the protective shell 2. Four sets of connectors 41 are fixed at equal intervals on the upper surface of the mounting plate 4. The upper surfaces of the four sets of connectors 41 are threaded with radiators 42. The outer surface of the radiators 42 is covered with radiation protection sleeves 43.
[0036] Furthermore, the four sets of radiators 42 are passed through the limiting holes 45 into the limiting member 44, and the lower surface of the radiators 42 is threadedly connected to the connecting seat 47, while the limiting member 44 can limit the four sets of radiators 42.
[0037] Specifically, the external connection of the radiation protection sleeve 43 is a limiting member 44. The upper surface of the limiting member 44 is provided with a limiting hole 45 corresponding to the radiation protection sleeve 43. A fixing screw 46 is installed at the upper end of the limiting member 44. The end of the fixing screw 46 is threadedly connected to a connecting seat 47 that is welded to the mounting plate 4.
[0038] Furthermore, a radiation protection sleeve 43 is placed over the outside of the radiator 42 to protect the radiator 42.
[0039] Specifically, an insulating gasket 48 is installed on the lower surface of the mounting plate 4. The insulating gasket 48 is bonded to the mounting plate 4. A grounding base 49, which is fixedly connected to the mounting base 1, is bonded to the lower surface of the insulating gasket 48. The grounding base 49 is electrically connected to the mounting plate 4.
[0040] Furthermore, by tightening the fixing screws 46 on the limiting member 44, the limiting member 44 is fixed, effectively reducing the possibility of the limiting member 44 falling off. Then, the fixing plate 5 is placed on the protective shell 2, and the limiting bolts 51 on the fixing plate 5 are tightened to fix the fixing plate 5. The insulating gasket 48 set at the bottom of the mounting plate 4 can play an insulating role.
[0041] In use, the four sets of radiators 42 are passed through the limiting holes 45 and the limiting parts 44 respectively through the connectors 41 on the mounting plate 4. The lower surface of the radiators 42 is then threaded to the connecting seat 47. The limiting parts 44 can limit the four sets of radiators 42, thereby effectively reducing the possibility of the radiators 42 shifting. Then, the radiation protection sleeve 43 is put on the outside of the radiators 42 to protect them. The limiting parts 44 are then fixed by tightening the fixing screws 46 on the limiting parts 44, effectively reducing the possibility of the limiting parts 44 falling off. Then, the fixing plate 5 is placed on the protective shell 2, and the limiting bolts 51 on the fixing plate 5 are tightened to fix the fixing plate 5. The insulating gasket 48 at the bottom of the mounting plate 4 can play an insulating role, and the grounding base 49 is electrically connected to the mounting plate 4 through the wire. The mounting plate 4 is then connected to the external ground wire to achieve the grounding function.
[0042] In summary, when this ultra-wideband antenna is in use, the four radiators 42 are low-frequency and high-frequency antennas, respectively, and radiate in a stepped manner, corresponding to frequency bands from low to high. No circuit coupling is required. The reflector 55 is fixed by the fixing block 53 set on the mounting post 52. The four reflectors 55 form an auxiliary reflection array, which can avoid the signal blind zone of a single reflector 55, improve the horizontal omnidirectional deviation, and thus achieve the effect of signal enhancement. Furthermore, by putting the radiation protection sleeve 43 on the outside of the radiator 42, the radiator 42 is protected. Tightening the limiting bolt 51 on the fixing plate 5 fixes the fixing plate 5. The insulating gasket 48 set at the bottom of the mounting plate 4 can play an insulating role.
[0043] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.
[0044] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.
[0045] It should be understood that numerous specific implementation decisions can be made during the development of any actual implementation method, and in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.
[0046] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. An ultra-wideband antenna, comprising a mounting base (1), characterized in that: The upper surface of the mounting base (1) is welded and fixed with a protective shell (2). The mounting base (1) is equipped with a fixing bolt (3). The protective shell (2) is provided with a signal transmitting component for transmitting signals. The upper end of the protective shell (2) is provided with a signal amplification component for amplifying signals. The signal enhancement assembly includes a fixing plate (5), a limiting bolt (51), a mounting post (52), a fixing block (53), a reinforcing plate (54), and a reflector (55). The fixing plate (5) is installed on the upper surface of the protective shell (2). The upper surface of the fixing plate (5) is fitted with a limiting bolt (51) that is threadedly connected to the protective shell (2). Four reinforcing plates (54) are installed at the upper end of the protective shell (2). The outer surfaces of the four reinforcing plates (54) are all integrally fixed with reflectors (55).
2. The ultra-wideband antenna according to claim 1, characterized in that: The protective shell (2) has a mounting post (52) running through its interior. The outer surface of the mounting post (52) is fitted with four fixing blocks (53), and the four fixing blocks (53) are welded to the reinforcing plate (54).
3. The ultra-wideband antenna according to claim 2, characterized in that: The signal transmitting assembly includes a mounting plate (4), connectors (41), radiators (42), radiation protection sleeves (43), limiting components (44), limiting holes (45), fixing screws (46), connecting seats (47), insulating gaskets (48), and grounding bases (49). The mounting plate (4) is located inside the protective shell (2), and four sets of connectors (41) are fixed at equal intervals on the upper surface of the mounting plate (4).
4. An ultra-wideband antenna according to claim 3, characterized in that: The upper surfaces of the four sets of connectors (41) are all threaded with radiators (42), and the outer surfaces of the radiators (42) are fitted with radiation protection sleeves (43).
5. An ultra-wideband antenna according to claim 4, characterized in that: The radiation protection sleeve (43) is externally connected to a limiting member (44), and the upper surface of the limiting member (44) is provided with a limiting hole (45) corresponding to the radiation protection sleeve (43).
6. An ultra-wideband antenna according to claim 5, characterized in that: The upper end of the limiting member (44) is equipped with a fixing screw (46), and the end of the fixing screw (46) is threadedly connected to a connecting seat (47) that is welded to the mounting plate (4).
7. An ultra-wideband antenna according to claim 6, characterized in that: An insulating gasket (48) is installed on the lower surface of the mounting plate (4), and the insulating gasket (48) is bonded to the mounting plate (4).
8. An ultra-wideband antenna according to claim 7, characterized in that: The lower surface of the insulating pad (48) is bonded with a grounding base (49) which is fixedly connected to the mounting base (1), and the grounding base (49) is electrically connected to the mounting plate (4).