A small-sized ultra-wideband wall-hanging antenna with high stability

Abstract

The application provides a small-size ultra-wideband wall-hanging antenna with high stability, and specifically relates to a single-polarization directional wall-hanging antenna, which is vertically polarized and comprises a first radiating vibrator, a second radiating vibrator, a first coupling sheet, a second coupling sheet, a third coupling sheet, an antenna cover, a cable feeder and a reflecting plate. The first radiating vibrator and the second radiating vibrator form an asymmetric antenna dipole radiator, and the first coupling sheet and the leftmost part of the second radiating vibrator form an asymmetric structure. The second coupling sheet and the third coupling sheet are separately arranged on the left and right sides of the included angle formed by the first radiating vibrator and the second radiating vibrator. The technical scheme improves the feeding mode and feeding process of the existing wall-hanging antenna on the market, greatly reduces the production cost of the antenna, has the characteristics of low intermodulation, ultra-wideband, simple structure, low cost, stable electrical performance and the like, and can be perfectly applied to a mobile communication system with directional coverage requirements.

Description

Technical Field

[0001] This invention relates to the field of wireless communication technology, and in particular to a small, ultra-wideband wall-mounted antenna with high stability. Background Technology

[0002] Currently, 5G indoor signal coverage still faces many challenges: firstly, operators deploy at higher frequencies; secondly, there are multiple challenges such as insufficient maturity of the industry chain and differentiated demands. According to 5G traffic analysis data, 70% of business occurs in indoor scenarios, and high-value customers spend 80% of their working time indoors. Therefore, indoor coverage is a top priority for operators. Existing wall-mounted antenna solutions present two main challenges. One design, while low-cost and small-sized, relies on coupling plates for power supply, requiring high spacing between feed points. After simulated automotive transport or vibration testing, its electrical performance indicators are prone to deterioration (e.g., voltage standing wave ratio and third-order intermodulation cannot meet design requirements). The other design, while offering better electrical performance, is large, expensive, and complex to manufacture, lacking significant market expansion and added value potential. Summary of the Invention

[0003] In view of this, the purpose of this invention is to provide a small, ultra-wideband wall-mounted antenna with high stability, which improves the feeding method and feeding process of existing wall-mounted antennas on the market, greatly reduces the production cost of the antenna, and has the characteristics of low intermodulation, ultra-wideband, simple structure, low cost, and high electrical performance stability. It can be perfectly applied to 2G / 3G / 4G / 5G / WLAN mobile communication systems that require directional coverage.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a small, ultra-wideband wall-mounted antenna with high stability, wherein the antenna is a single-polarization directional wall-mounted antenna with vertical polarization, comprising: a first radiating element, a second radiating element, a first coupling plate, a second coupling plate, a third coupling plate, an antenna housing, a cable feed line, and a reflector; the first radiating element and the second radiating element form an asymmetric antenna dipole radiator, and the first coupling plate and the second radiating element form an asymmetric structure; the second coupling plate and the third coupling plate are located on the left and right sides of the angle formed by the first radiating element and the second radiating element, respectively; a certain gap is left between the first radiating element, the second radiating element, the first coupling plate, the second coupling plate, and the third coupling plate.

[0005] In a preferred embodiment, the lower end of the first radiating oscillator is continuously folded and bent at two 90° angles to form a wing-like bend. The lower end of the first radiating oscillator has a geometric rectangular gradient structure, forming a parallel height difference with the second radiating oscillator to form a metallic dielectric microstrip line. The coplanar portion of the first and second radiating oscillators has a triangular asymmetrical structure, which is placed opposite each other. There is a certain gap between the first and second radiating oscillators, and there is a certain height distance between the metallic dielectric microstrip line and the second radiating oscillator. The first radiating oscillator has two first rectangular upward folded edge structures, and the third coupling plate has one second rectangular upward folded edge structure.

[0006] In a preferred embodiment, the first rectangular upward-folded edge structure is perpendicular to the first radiating oscillator.

[0007] In a preferred embodiment, the second rectangular upward-folded edge structure is perpendicular to the third coupling plate.

[0008] In a preferred embodiment, the first radiating element, the second radiating element, the first coupling plate, the second coupling plate, and the third coupling plate are fixed inside the antenna housing with mounting posts by screws, forming a coplanar structure.

[0009] In a preferred embodiment, the cable feed line passes through a hole in the antenna housing, wherein the cable feed line shielding mesh is welded to the second radiating element, and the cable feed line core wire is fed to the first radiating element, thereby forming an integral asymmetric dipole antenna radiator.

[0010] In a preferred embodiment, the reflector is tightly fitted with the antenna cover, and other components are enclosed inside the cover to form a whole, resulting in a small, ultra-wideband wall-mounted antenna with high stability.

[0011] In a preferred embodiment, the first radiating oscillator, the second radiating oscillator, the first coupling plate, the second coupling plate, and the third coupling plate are integrally stamped metal radiators or made by electroplating metal with other dielectrics.

[0012] In a preferred embodiment, the cable feeder shield is welded to the second radiating element, and the core wire is welded to the first radiating element's metallic dielectric microstrip line feeder, thereby forming a coaxial cable feeder.

[0013] In a preferred embodiment, the reflector is tightly fitted with the antenna housing, enclosing other components inside the housing to form a directional wall-mounted antenna characteristic; the reflector is a metal reflector, which can be a flat plane or an uneven metal plane, or a metal reflector with a flanged structure.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. Ultra-wideband, supporting frequencies from 698 to 3700 MHz; compatible with various communication systems such as 2G / 3G / 4G / 5G / WLAN;

[0016] 2. Coaxial cable feeding improves the feeding method (coupled feeding) and feeding process of existing wall-mounted antennas on the market, further enhancing the stability of the product.

[0017] 3. High gain (≥6dBi@698-960MHz; ≥8dBi@1710-3700MHz); low VSWR (VSWR<1.45); low intermodulation (IM3≤-107dBm@33dBm); concentrated directivity.

[0018] 4. Simple structure, easy assembly, and low cost;

[0019] 5. Truly achieve the goals of ultra-wideband, multi-purpose functionality, and resource conservation. Attached Figure Description

[0020] Figure 1 This is a radiation oscillator diagram of a preferred embodiment of the present invention;

[0021] Figure 2 This is a diagram of the internal structure of the antenna and a side view of a preferred embodiment of the present invention;

[0022] Figure 3 This is an exploded view of the antenna structure according to a preferred embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the antenna cover and reflector of a preferred embodiment of the present invention. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of this application. Unless otherwise specified, 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 application pertains.

[0026] It should be noted that the terminology used herein is for the purpose of describing particular implementations only and is not intended to limit the exemplary implementations according to this application; as used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise; furthermore, it should be understood that when the terms “comprising” and / or “including” are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0027] A highly stable, small, ultra-wideband wall-mounted antenna, reference Figure 1-4The specific antenna type is a single-polarization directional wall-mounted antenna with vertical polarization. It includes: a first radiating element 1, a second radiating element 2, a first coupling plate 3, a second coupling plate 4, a third coupling plate 5, an antenna housing 6, a cable feed line 7, and a reflector 8. The first radiating element 1, the second radiating element 2, the first coupling plate 3, the second coupling plate 4, and the third coupling plate 5 are fixed to the antenna housing 6, which has mounting posts, by screws, forming a coplanar structure. The first radiating element 1 and the second radiating element 2 form an asymmetrical antenna dipole radiator. The first coupling plate 3 and the second radiating element 2 form an asymmetrical structure on the left side. The second coupling plate 4 and the third coupling plate 5 are located on the left and right sides of the angle formed by the first radiating element 1 and the second radiating element 2, respectively, mainly serving to couple the frequency and adjust the voltage standing wave ratio (VSWR). The lower end of the first radiating element 1 is continuously folded and flanged at two 90° angles, forming a wing-like bend. The lower end has a geometrically rectangular gradient structure, creating a parallel height difference with the second radiating element 2 to form a metallic dielectric microstrip line. The first radiating element 1 has two rectangular upward-folded flanges (perpendicular to the first radiating element 1), and the third coupling plate 5 has one rectangular upward-folded flange (perpendicular to the third coupling plate 5). The antenna shroud 6 is made of ABS, PS, or ASA plastic. The cable feed 7 passes through the holes in the antenna shroud 6. The cable feed 7's shielding mesh is welded to the second radiating element 2, and the cable feed 7's core wire is fed and welded to the first radiating element 1, thus forming a unified asymmetric dipole antenna radiator. To make the antenna form a directional antenna, a reflector 8 is introduced. The reflector is a metal reflector, which can be a flat plane, an uneven metal plane, or a metal reflector with a flanged structure. The reflector 8 fits tightly with the antenna housing 6, enclosing other components (first radiating element 1, second radiating element 2, first coupling plate 3, second coupling plate 4, and third coupling plate 5) within the housing, forming a highly stable, small, ultra-wideband wall-mounted antenna. It achieves ultra-wideband (698-3700MHz), single-channel output, and is compatible with various communication systems such as 2G / 3G / 4G / 5G / WLAN. It boasts excellent radiation parameters, superior directivity, and stable radiation / circuit parameters. This single-polarized wall-mounted antenna improves upon existing wall-mounted antenna feeding methods and processes, significantly reducing production costs. It features low intermodulation, ultra-wideband performance, simple structure, low cost, and high electrical stability, making it perfectly suited for 2G / 3G / 4G / 5G / WLAN mobile communication systems requiring directional coverage. Excellent radiation characteristics are obtained by adjusting the spacing between the first radiating oscillator 1, the second radiating oscillator 2, the first coupling plate 3, the second coupling plate 4, and the third coupling plate 5, as well as the height of the upward folded edge structure of the first radiating oscillator 1 and the third coupling plate 5, thereby meeting the design requirements.

[0028] In one embodiment of the present invention, the first radiating element 1, the second radiating element 2, the first coupling plate 3, the second coupling plate 4, and the third coupling plate 5 are fixed inside the antenna cover 6 with mounting posts by screws, forming a coplanar structure.

[0029] Furthermore, the lower end of the first radiating oscillator 1 is continuously folded and flanged at two 90° angles to form a wing-like bend, with a length of 10-300mm. The lower end has a geometrically rectangular gradient structure, forming a parallel height difference with the second radiating oscillator 2 to form a metallic dielectric microstrip line. The coplanar portion of the first radiating oscillator 1 and the second radiating oscillator 2 has a triangular asymmetrical structure, placed opposite each other, with a certain gap between the two radiating oscillators, which can be 1-50mm. The folded portion (metallic dielectric microstrip line) has a certain height distance from the second radiating oscillator.

[0030] Furthermore, the first radiating oscillator 1, the second radiating oscillator 2, the first coupling plate 3, the second coupling plate 4, and the third coupling plate 5 are metal radiators, integrally stamped, or can be electroplated with other media (and can be welded).

[0031] Furthermore, the first radiating oscillator 1 has two rectangular upward-folded edge structures (perpendicular to the first radiating oscillator 1), and the third coupling plate 5 has one rectangular upward-folded edge structure (perpendicular to the third coupling plate 5), or multiple upward-folded edge structures, mainly to adjust the voltage standing wave ratio. The height of the upward-folded edge can be set to 10-250mm.

[0032] To achieve better radiation and broadband characteristics, a first coupling plate 3, a second coupling plate 4, and a third coupling plate 5 are introduced. The second coupling plate 4 and the third coupling plate 5 are positioned on either side of the angle formed by the first radiating element 1 and the second radiating element 2, respectively, primarily serving to couple the frequency and adjust the voltage standing wave ratio (VSWR). The first coupling plate 3 is positioned to the right of the first radiating element 1 / second radiating element 2 / third coupling plate 5, with a certain gap between the first radiating element 1, second radiating element 2, first coupling plate 3, second coupling plate 4, and third coupling plate 5.

[0033] Furthermore, the cable feeder 7 shielding mesh is welded to the second radiating element 2, and the core wire is welded to the first radiating element 1 with a metallic dielectric microstrip line for power feeding, thereby forming a coaxial cable feed. The reflector 8 is tightly fitted to the antenna housing 6, enclosing other components inside the housing, forming a directional wall-mounted antenna characteristic. The reflector is a metal reflector, which can be a flat plane or an uneven metal plane, or a metal reflector with a flanged structure.

[0034] The above description is only a preferred embodiment of the present invention. All equivalent changes and modifications made within the scope of the claims of the present invention should be included in the scope of the present invention.

Claims

1. A small size ultra-wideband wall-hanging antenna with high stability, the antenna is in the form of a single-polarized directional wall-hanging antenna, the polarization mode is vertical polarization, characterized in that The application relates to a small-sized super-wideband wall-hanging antenna, which comprises a first radiation oscillator, a second radiation oscillator, a first coupling sheet, a second coupling sheet, a third coupling sheet, an antenna cover, a cable feeder and a reflecting plate; the first radiation oscillator and the second radiation oscillator form an asymmetric antenna dipole radiator, the first coupling sheet and the second radiation oscillator form an asymmetric structure, the second coupling sheet and the third coupling sheet are separately arranged on the left and right sides of the included angle formed by the first radiation oscillator and the second radiation oscillator, and the first radiation oscillator, the second radiation oscillator, the first coupling sheet, the second coupling sheet and the third coupling sheet are mutually spaced apart. The lower end of the first radiation oscillator is continuously folded and flanged by two 90-degree wing-shaped bending, the lower end of the first radiation oscillator is gradually changed into a geometric rectangular structure, and a parallel high-low difference is formed with the second radiation oscillator to form a metal medium microstrip line; the coplanar part of the first radiation oscillator and the second radiation oscillator is a triangular asymmetric structure, and the first radiation oscillator and the second radiation oscillator are oppositely arranged; the first radiation oscillator and the second radiation oscillator are spaced apart by a certain distance, and the metal medium microstrip line and the second radiation oscillator are spaced apart by a certain height distance; the first radiation oscillator is provided with two first rectangular upward flange structures, and the third coupling sheet is provided with a second rectangular upward flange structure. The first rectangular upward flange structure is perpendicular to the first radiation oscillator. The second rectangular upward flange structure is perpendicular to the third coupling sheet. The first radiation oscillator, the second radiation oscillator, the first coupling sheet, the second coupling sheet and the third coupling sheet are fixed in the antenna cover provided with a mounting column by screws to form a coplanar structure.

2. The compact ultra-wideband wall-mount antenna with high stability according to claim 1, characterized in that, The cable feeder passes through the hole of the antenna cover, the cable feeder shielding net is welded with the second radiation oscillator, and the cable feeder core wire is welded with the first radiation oscillator feeding wire, so as to form an integrated asymmetric dipole antenna radiator.

3. The compact ultra-wideband wall-mount antenna with high stability according to claim 1, characterized in that, The reflecting plate is tightly matched with the antenna cover, and other components are covered in the cover to form an integrated small-sized super-wideband wall-hanging antenna with high stability.

4. The compact ultra-wideband wall-mount antenna with high stability according to claim 1, characterized in that, The first radiation oscillator, the second radiation oscillator, the first coupling sheet, the second coupling sheet and the third coupling sheet are formed by metal stamping process or other medium electroplating metal process.

5. The compact ultra-wideband wall-mount antenna with high stability according to claim 1, characterized in that, The cable feeder shielding net is welded with the second radiation oscillator, and the core wire is welded with the first radiation oscillator metal medium microstrip line feeding wire, so as to form a coaxial cable feeder.

6. The compact ultra-wideband wall-mount antenna with high stability according to claim 1, characterized in that, The reflecting plate is tightly matched with the antenna cover, and other components are covered in the cover to form an integrated small-sized super-wideband wall-hanging antenna with high stability.

7. The compact ultra-wideband wall-mount antenna with high stability according to claim 1, characterized in that, The reflecting plate is a metal reflecting plate, which is a flat plane or an uneven metal plane, or a metal reflecting plate with a flange structure.

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