Single-polarized wall-mounted antenna

Abstract

The invention discloses a single-polarized wall hanging antenna which comprises a metal reflection bottom plate, a low-frequency single-polarized oscillator and a high-frequency dual-polarized oscillator, wherein the low-frequency single-polarized oscillator and the high-frequency dual-polarized oscillator are arranged on the metal reflection bottom plate. Wherein the combiner board is arranged below the low-frequency single-polarized oscillators, the low-frequency single-polarized oscillators are welded on the impedance conversion circuit board through the feed balun, the other end of the impedance conversion circuit board is connected with a low-frequency port of the combiner board, and the vertical polarized oscillators in the high-frequency dual-polarized oscillators are connected with a high-frequency port of the combiner board. A combiner port of the combiner plate is connected with an antenna main feeder cable; the two high-frequency director oscillators are arranged above the high-frequency dual-polarized oscillator, and the two corner reflecting plates with different lengths are fixedly mounted on the two sides of the high-frequency dual-polarized oscillator respectively, so that the antenna performance can be ensured, the size of the antenna can be effectively reduced, and the cost is further saved.

Description

Technical Field

[0001] The present invention relates to the technical field of communication antennas, and in particular to a single-polarized wall-mounted antenna. Background Art

[0002] Traditional single-polarized wall-mounted antennas are usually composed of multiple oscillators of different frequency bands, such as low-frequency 698-960MHz, medium-frequency 1710-2700MHz and high-frequency 3300-3800MHz single-polarized oscillators, which are formed by a three-frequency combiner. Although this design can cover a wider frequency band, it has problems such as large size, complex installation, and material waste. Especially in indoor distribution system (Room Distribution) applications, where space is limited, the design of traditional antennas is difficult to meet the requirements of miniaturization and high performance. In addition, the combination of multiple oscillators increases manufacturing costs and installation time, reducing the overall economic benefits. Summary of the invention

[0003] The purpose of the present invention is to solve at least one of the technical problems existing in the prior art and to provide a single-polarized wall-mounted antenna that can effectively reduce the size of the antenna while ensuring the antenna performance, thereby saving costs.

[0004] An embodiment of the present invention provides a single-polarization wall-mounted antenna, comprising: a metal reflective bottom plate, and a low-frequency single-polarization vibrator and a high-frequency dual-polarization vibrator arranged on the metal reflective bottom plate; wherein a combiner board is arranged below the low-frequency single-polarization vibrator, the low-frequency single-polarization vibrator is welded on an impedance transformation circuit board through a feeding balun, the other end of the impedance transformation circuit board is connected to the low-frequency port of the combiner board, the vertically polarized vibrator in the high-frequency dual-polarization vibrator is connected to the high-frequency port of the combiner board, and the combining port of the combiner board is connected to the antenna main feeder cable; two high-frequency guiding vibrators are arranged above the high-frequency dual-polarization vibrator, and two corner reflection plates of different lengths are fixedly installed on both sides of the high-frequency dual-polarization vibrator.

[0005] In some embodiments, the low-frequency single-polarization oscillator is made of a 1 mm thick brass plate and is fixed to the metal reflective bottom plate through a plurality of non-metallic support columns.

[0006] In some embodiments, the feeding balun includes a quarter-wavelength copper sheet, the low-frequency single-polarization vibrator is welded on the impedance transformation circuit board through the quarter-wavelength copper sheet, and the impedance transformation circuit board is made of F4B high-temperature resistant high-frequency board material.

[0007] In some embodiments, the high-frequency dual-polarization vibrator is made of a 1 mm thick double-sided copper foil FR4 epoxy resin board and welded on a metal feeding base. The metal feeding base also serves as a vibrator balun and a support frame and is fixed to the metal reflective base plate by screws.

[0008] In some embodiments, the high-frequency dual-polarization vibrator includes a high-frequency radiation vibrator and four excitation vibrators attached to its edge, and the distance between the excitation vibrator and the high-frequency radiation vibrator is 0.15 mm, so that the frequency bandwidth is increased to 1700-3800 MHz.

[0009] In some embodiments, the two high-frequency director vibrators are aluminum discs, and the distance between them and the high-frequency dual-polarization vibrator is 8 mm. The high-frequency director vibrator is fixed to the high-frequency dual-polarization vibrator by multiple non-metallic pillars.

[0010] In some embodiments, the combiner plate is placed below the low-frequency oscillator and fixed to the metal reflective bottom plate by non-metallic rivets.

[0011] In some embodiments, the short-angle reflector is located on the inner side of both sides of the high-frequency dual-polarization oscillator, and the long-angle reflector is located on the outer side of both sides of the high-frequency dual-polarization oscillator, and the distance between the two short-angle reflectors is smaller than the distance between the two long-angle reflectors.

[0012] In some embodiments, a standing wave debugging piece made of aluminum is fixed at the front lower part of the high-frequency dual-polarization oscillator.

[0013] In some embodiments, an antenna cover is disposed outside the low-frequency single-polarization vibrator and the high-frequency dual-polarization vibrator, and the cover is connected to the assembled antenna through metal self-tapping screws.

[0014] According to an embodiment of the present invention, a single-polarization wall-mounted antenna is provided, which has at least the following beneficial effects: an embodiment of the present invention provides a single-polarization wall-mounted antenna, comprising: a metal reflective bottom plate, and a low-frequency single-polarization vibrator and a high-frequency dual-polarization vibrator arranged on the metal reflective bottom plate; wherein a combiner board is arranged below the low-frequency single-polarization vibrator, the low-frequency single-polarization vibrator is welded on the impedance transformation circuit board through a feeding balun, the other end of the impedance transformation circuit board is connected to the low-frequency port of the combiner board, the vertically polarized vibrator in the high-frequency dual-polarization vibrator is connected to the high-frequency port of the combiner board, and the combining port of the combiner board is connected to the main feed of the antenna. The invention relates to a method for connecting an intermediate frequency antenna to a wireless antenna having a wavelength of 1700-3800 MHz and a single-polarized antenna having a wavelength of 698-960 MHz. ... and a single-polarized antenna having a wavelength of 698-960 MHz. The invention relates to

[0015] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the technical solution of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the technical solution of the present invention and do not constitute a limitation on the technical solution of the present invention.

[0017] The present invention is further described below in conjunction with the accompanying drawings and embodiments;

[0018] Figure 1 It is a schematic diagram of the inner wall structure of a single-polarized wall-mounted antenna provided by an embodiment of the present invention;

[0019] Figure 2 is an external schematic diagram of a single-polarized wall-mounted antenna provided by an embodiment of the present invention;

[0020] Figure 3 It is a schematic diagram of the internal structure of a single-polarized wall-mounted antenna provided by an embodiment of the present invention after perspective viewing;

[0021] Figure 4 This is a perspective view of the internal structure of a single-polarized wall-mounted antenna provided by an embodiment of the present invention;

[0022] Figure 5 It is a schematic diagram of a combiner board in a single-polarized wall-mounted antenna provided in an embodiment of the present invention;

[0023] Figure 6 It is a schematic diagram of a low-frequency single-polarized oscillator in a single-polarized wall-mounted antenna provided in an embodiment of the present invention;

[0024] Figure 7 It is a schematic diagram of a high-frequency dual-polarization oscillator in a single-polarization wall-mounted antenna provided in an embodiment of the present invention.

[0025] Reference numerals:

[0026] 1. Metal reflective bottom plate; 2. Combiner board; 3. Low-frequency single-polarization oscillator; 4. Impedance transformation circuit board; 5. Feed balun; 6. Non-metallic support column; 7. High-frequency dual-polarization oscillator; 8. High-frequency radiation oscillator; 9. Excitation oscillator; 10. First high-frequency guiding oscillator; 11. Second high-frequency guiding oscillator; 12. Metal feeding seat; 13. Standing wave debugging piece made of aluminum; 14. Long-angle reflector; 15. Short-angle reflector; 16. Antenna main feeder cable; 17. Antenna cover; 18. High-frequency port; 19. Low-frequency port; 20. Combiner port. DETAILED DESCRIPTION

[0027] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0028] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, "above", "below", "within", etc. are understood to include the number itself, "any one" means one or more, "at least one of the following" and similar expressions refer to any combination of these items, including any combination of single or plural items. If there is a description of the first and the second, it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0029] It should be noted that the terms such as setting, installing, and connecting in the embodiments of the present invention should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the embodiments of the present invention in combination with the specific content of the technical solution. For example, the term "connection" can be a mechanical connection, an electrical connection, or mutual communication; it can be directly connected or indirectly connected through an intermediate medium.

[0030] It should be noted that the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0031] At present, traditional single-polarized wall-mounted antennas are usually composed of multiple oscillators of different frequency bands, such as low-frequency 698-960MHz, medium-frequency 1710-2700MHz and high-frequency 3300-3800MHz single-polarized oscillators, which are formed by a three-frequency combiner. Although this design can cover a wider frequency band, it has problems such as large size, complex installation, and material waste. Especially in indoor distribution system (Room Distribution) applications, where space is limited, the design of traditional antennas is difficult to meet the requirements of miniaturization and high performance. In addition, the combination of multiple oscillators increases manufacturing costs and installation time, reducing the overall economic benefits.

[0032] Based on this, an embodiment of the present invention provides a single-polarization wall-mounted antenna, including: a metal reflective bottom plate, and a low-frequency single-polarization vibrator and a high-frequency dual-polarization vibrator arranged on the metal reflective bottom plate; wherein a combiner board is arranged below the low-frequency single-polarization vibrator, the low-frequency single-polarization vibrator is welded on an impedance transformation circuit board through a feeding balun, the other end of the impedance transformation circuit board is connected to the low-frequency port of the combiner board, the vertically polarized vibrator in the high-frequency dual-polarization vibrator is connected to the high-frequency port of the combiner board, and the combining port of the combiner board is connected to the main feeder cable of the antenna; two high-frequency guiding vibrators are arranged above the high-frequency dual-polarization vibrator, and two corner reflection plates of different lengths are fixedly installed on both sides of the high-frequency dual-polarization vibrator.

[0033] The embodiments of the present invention are further described below in conjunction with the accompanying drawings:

[0034] refer to Figures 1 to 7 , Figure 1 It is a schematic diagram of the inner wall structure of a single-polarized wall-mounted antenna provided by an embodiment of the present invention; Figure 2 is an external schematic diagram of a single-polarized wall-mounted antenna provided by an embodiment of the present invention; Figure 3 Schematic diagram of the internal structure of a single-polarized wall-mounted antenna provided by an embodiment of the present invention; Figures 4 to 7 , Figure 4 This is a perspective view of the internal structure of a single-polarized wall-mounted antenna provided by an embodiment of the present invention; Figure 5 It is a schematic diagram of a combiner board in a single-polarized wall-mounted antenna provided in an embodiment of the present invention; Figure 6 It is a schematic diagram of a low-frequency single-polarized oscillator in a single-polarized wall-mounted antenna provided in an embodiment of the present invention; Figure 7 It is a schematic diagram of a high-frequency dual-polarization oscillator in a single-polarization wall-mounted antenna provided in an embodiment of the present invention.

[0035] The embodiment of the present invention provides a single-polarization wall-mounted antenna, comprising: a metal reflective bottom plate 1, and a low-frequency single-polarization vibrator 3 and a high-frequency dual-polarization vibrator 7 arranged on the metal reflective bottom plate 1; wherein a combiner board 2 is arranged below the low-frequency single-polarization vibrator 3, the low-frequency single-polarization vibrator 3 is welded on an impedance transformation circuit board 4 through a feeding balun 5, the other end of the impedance transformation circuit board 4 is connected to a low-frequency port 19 of the combiner board 2, the vertically polarized vibrator in the high-frequency dual-polarization vibrator 7 is connected to a high-frequency port 18 of the combiner board 2, and the combining port 20 of the combiner board 2 is connected to an antenna main feeder cable 16; two high-frequency guiding vibrators are arranged above the high-frequency dual-polarization vibrator 7, and two corner reflection plates of different lengths are fixedly installed on both sides of the high-frequency dual-polarization vibrator 7.

[0036] Among them, the present application optimizes the oscillator structure and combiner design, integrates the intermediate frequency and high frequency oscillators into a 1700-3800MHz high-frequency dual-polarization oscillator 7, and forms an array with a 698-960MHz low-frequency single-polarization oscillator 3. While ensuring good matching and stable electrical performance of the antenna within a wide bandwidth, it can effectively reduce the number of oscillators, simplify the antenna structure, and reduce the size of the antenna to save material and installation costs.

[0037] It is understandable that a conventional single-polarization wall-mounted antenna usually requires three oscillators of different frequency bands (low frequency 698-960MHz, medium frequency 1710-2700MHz, high frequency 3300-3800MHz), and is arrayed through a three-frequency combiner. Multiple oscillators and combiners increase the overall size of the antenna, making the antenna occupy a large space and not suitable for indoor applications with limited space. In the present application, the high-frequency dual-polarization oscillator 7 further expands the bandwidth by adding four excitation oscillators 9 to the edge of the high-frequency radiation oscillator 8, so that it can cover a wide frequency band from 1700MHz to 3800MHz, and can thus work efficiently in multiple frequency bands, reducing the need for multiple The antenna needs to be connected with the combiner board 2 to ensure good impedance matching of the antenna in the entire frequency band; at the same time, the operating frequency range of the low-frequency single-polarization vibrator 3 is 698-960MHz. Normally, the size of the low-frequency vibrator is large, and it is difficult to achieve good electrical performance in a limited space. In this application, by using a quarter-wavelength copper sheet as a feeding balun 5 and welding it on the impedance transformation circuit board 4, there is no need for complex circuit design or additional components. While ensuring the performance of the low-frequency vibrator, the overall complexity of the antenna can be effectively reduced, and the occupied space can be reduced, and then the antenna design can be realized by networking with the high-frequency dual-polarization vibrator 7 through the combiner board 2.

[0038] The explanation of each component in the embodiment of the present application is as follows:

[0039] In some embodiments, the metal reflective base plate 1 is used to shield electromagnetic waves inside the antenna, prevent external electromagnetic interference from entering the antenna system, and reduce the antenna's radiation to the rear, thereby improving the antenna's directivity and gain. As the main supporting structure of the antenna, the metal reflective base plate 1 provides a stable installation platform for components such as the low-frequency single-polarization vibrator 3, the high-frequency dual-polarization vibrator 7, and the combiner board 2, thereby ensuring the overall mechanical strength and stability of the antenna.

[0040] In some embodiments, the combiner board 2 is responsible for combining the low-frequency (698-960MHz) and high-frequency (1700-3800MHz) signals into one output signal. It connects the low-frequency oscillator and the high-frequency oscillator through two ports respectively, and finally transmits the combined signal to the antenna main feeder cable 16 to ensure that the low-frequency and high-frequency signals do not produce significant reflection losses during the merging process, thereby ensuring the high efficiency of signal transmission; in some embodiments, the combiner board 2 is fixed to the metal reflective base plate 1 by non-metallic rivets, avoiding electromagnetic coupling that may be caused by metal rivets and maintaining the stability of the electrical performance of the antenna.

[0041] In some embodiments, the low-frequency single-polarization vibrator 3 is responsible for covering the 698-960 MHz frequency band, and is used for transmitting and receiving low-frequency wireless signal tasks. The low-frequency single-polarization vibrator 3 can use a quarter-wavelength copper sheet as a feeding balun 5 to achieve optimal radiation performance in a limited space, improve the gain and efficiency of the antenna, and is fixed to the metal reflective base plate 1 through a non-metallic support column 6, ensuring the stability of the vibrator and optimal electrical performance.

[0042] In some embodiments, the low-frequency single-polarization vibrator 3 is made of a 1 mm thick brass plate and is slotted for shunt operation. It can be understood that by slotting the low-frequency single-polarization vibrator 3, not only the height of the vibrator is reduced, but also the bandwidth of the low-frequency vibrator is increased, thereby ensuring the good performance of the antenna in the 698-960 MHz frequency band. Specifically, the height of the low-frequency single-polarization vibrator 3 is reduced a lot by slotting for shunt operation, reaching 48 mm, which is about 35 mm lower than the traditional design. This enables the low-frequency vibrator to achieve good radiation performance in a limited space without affecting the operation of the high-frequency dual-polarization vibrator.

[0043] In some embodiments, the impedance transformation circuit board 4 is used to convert the impedance of the low-frequency single-polarization oscillator 3 into an impedance that matches the feed line, thereby ensuring the reflection loss of the low-frequency signal during transmission and improving the efficiency of the antenna. One end of the impedance transformation circuit board 4 is welded to the feeding balun 5 of the low-frequency oscillator, and the other end is connected to the low-frequency port 19 of the combiner board 2 through a cable to realize the transmission of the low-frequency signal.

[0044] In some embodiments, the feed balun 5 is used to convert the feed signal to ensure good impedance matching between the low-frequency oscillator and the feed line to reduce reflection loss and improve the efficiency of the antenna.

[0045] In some embodiments, the high-frequency dual-polarization vibrator 7 is responsible for covering a wide frequency band of 1700-3800 MHz, supporting multiple communication frequency bands, and meeting the needs of modern communication systems. The vertically polarized vibrator in the high-frequency dual-polarization vibrator 7 is connected to the high-frequency port 18 of the combiner board 2, and is responsible for processing the vertically polarized high-frequency signal; the horizontally polarized vibrator in the high-frequency dual-polarization vibrator 7 is not used and is not connected to any port, that is, the horizontally polarized signal is idle to simplify the antenna structure.

[0046] In some embodiments, the high-frequency dual-polarization vibrator 7 covers the frequency band of 1700-3800MHz, and is made of a 1mm thick double-sided copper foil FR4 epoxy resin board, which is welded on a metal feed base 12, and the metal feed base 12 serves as a vibrator balun and a support frame at the same time; wherein, the high-frequency dual-polarization vibrator includes a high-frequency radiation vibrator 8 and four excitation vibrators 9 attached to its edge, and the distance gap between these excitation vibrators 9 and the high-frequency radiation vibrator 8 is 0.15mm, which can effectively expand the bandwidth of the high-frequency dual-polarization vibrator, so that the high-frequency dual-polarization vibrator can cover a wide frequency band from 1700MHz to 3800MHz. It is understandable that the high-frequency vibrator in the traditional method can only reach 1700-2700 (MHZ). In this way, the bandwidth is increased by 1000MHZ; in addition, two guiding vibrators (with dimensions of Ф34×1 and Ф32×1, respectively) are arranged above the high-frequency radiation vibrator 8, and the spacing is 8mm, which further improves the gain and directivity of the antenna.

[0047] Among them, the metal feeding base 12 is used to weld the high-frequency dual-polarization vibrator 7 on it, and also serves as the balun and support frame of the vibrator, responsible for feeding the high-frequency signal, and is fixed to the metal reflective base plate 1 by screws, providing stable mechanical support for the high-frequency radiation vibrator 8.

[0048] Among them, the two guiding vibrators include a first high-frequency guiding vibrator 10 and a second high-frequency guiding vibrator 11. The first high-frequency guiding vibrator 10 is located in front of the high-frequency dual-polarization vibrator 7, with a size of Ф34×1 and a distance of 8mm from the high-frequency dual-polarization vibrator 7. The design of the guiding vibrator can effectively enhance the gain and directivity of the antenna, thereby significantly improving the forward radiation performance of the antenna in the high frequency band (1700-3800MHz). In addition, the presence of the guiding vibrator can also reduce sidelobe interference, optimize the radiation characteristics of the antenna, and improve the quality and coverage of signal transmission.

[0049] Furthermore, the second high-frequency director 11 is located in front of the first high-frequency director 10, has a size of Ф32×1, and is 8 mm away from the first high-frequency director 10. The design of the second director further enhances the gain and directivity of the antenna, especially in the high-frequency band, significantly improving the forward radiation performance of the antenna. It can be understood that the second director works in conjunction with the first director to more effectively optimize the radiation pattern of the antenna.

[0050] In some embodiments, two corner reflectors of different lengths are fixedly installed on both sides of the high-frequency dual-polarization vibrator 7, and the long corner reflectors 14 are located on the outside of both sides of the high-frequency dual-polarization vibrator 7, and the spacing between the two long corner reflectors 14 is 118mm. Their function is to control the radiation angle range of the high-frequency dual-polarization vibrator 7, and enhance the directivity and gain of the antenna; specifically, the short corner reflectors 15 are spaced 84mm apart, and the long corner reflectors 14 are spaced 118mm apart. The design of the corner reflectors effectively controls the radiation angle range of the high-frequency dual-polarization vibrator 7, enhances the directivity and gain of the antenna, and reduces sidelobe interference, thereby improving the overall performance of the antenna.

[0051] It can be understood that, by reasonably arranging the corner reflectors, the present application can make the radiation energy of the high-frequency dual-polarization vibrator 7 more concentrated, improve the gain of the antenna in the main radiation direction, effectively shield external electromagnetic interference, enhance the anti-interference ability of the antenna, and ensure that the antenna can work stably in a complex electromagnetic environment.

[0052] In some embodiments, the combiner board 2 is made of F4B material, placed under the low-frequency oscillator, and fixed to the metal reflective bottom plate 1 by non-metallic rivets. The low-frequency port 19 of the combiner board 2 is connected to the impedance transformation circuit board 4 through a 141-1.5 cable, and the high-frequency port 18 is directly connected to the vertically polarized oscillator in the high-frequency dual-polarization oscillator 7. The combining port 20 of the combiner board 2 is connected to the antenna main feeder cable 16, realizing the effective combination of low-frequency and high-frequency signals.

[0053] It is understandable that traditional single-polarization wall-mounted antennas usually require three oscillators of different frequency bands (low frequency, medium frequency, and high frequency) and are arrayed through a three-frequency combiner. The present invention reduces the number of oscillators and simplifies the antenna structure by integrating the medium frequency and high frequency oscillators into a 1700-3800MHz high-frequency dual-polarization oscillator 7, which not only reduces the manufacturing cost, but also reduces the installation time and space occupancy, making the antenna more compact and easy to install.

[0054] It is worth noting that, in the present application, the impedance transformation circuit board 4 and the feeding balun 5 are used to enable the low-frequency oscillator and the high-frequency oscillator to achieve good standing wave ratio and gain in their respective frequency bands. The four excitation oscillators 9 and two guiding oscillators attached to the edge of the high-frequency radiation oscillator 8 further optimize the bandwidth and gain of the antenna, ensuring the stable performance of the antenna in the entire wide frequency band; further, the design of the metal reflective base plate 1 and the corner reflector effectively shields external electromagnetic interference and enhances the anti-interference ability of the antenna; at the same time, the standing wave debugging piece 13 made of aluminum material fixed at the front lower part of the high-frequency radiation oscillator 8 takes into account the balance of low-end and mid-to-high-end standing waves, further improving the overall performance of the antenna.

[0055] In some embodiments, the PCB circuit on the impedance transformation circuit board 4 can use a microstrip line structure to achieve impedance transformation. The width and length of the microstrip line can be calculated according to the required impedance value to ensure good matching of the antenna within the entire frequency band; in addition, the PCB circuit on the impedance transformation circuit board 4 can also include a gradient impedance transformer to achieve smoother impedance matching through gradually changing impedance values ​​to further reduce reflection losses.

[0056] In some embodiments, a standing wave adjustment piece 13 made of aluminum is fixed at the front lower part of the high-frequency dual-polarization vibrator 7, with a size of 90mm×14mm×1mm, and is used to adjust the standing wave ratio of the high-frequency dual-polarization vibrator 7 to ensure that the standing wave ratio of the antenna is maintained at a low level in the entire frequency band (1700-3800MHz). It can be imagined that the design of the standing wave adjustment piece can achieve good standing wave balance between the various frequency bands of the high-frequency dual-polarization vibrator 7, ensuring the stable performance of the antenna in different frequency bands.

[0057] In some embodiments, the present application can effectively reduce the overall size of the antenna to 282mm×180mm×60mm by reducing the number of oscillators and simplifying the design of the combiner, as well as optimizing the oscillator structure and the combiner design, thereby being suitable for various indoor application scenarios, especially environments with limited space. The above compact design makes installation easier, reduces installation time and labor costs, and saves material and space costs.

[0058] In some embodiments, the low-frequency single-polarization vibrator 3 is made of a 1 mm thick brass plate and is fixed on the metal reflective base plate 1 through a plurality of non-metallic support columns 6. Specifically, the low-frequency single-polarization vibrator 3 covers a frequency band of 698-960 MHz and is made of a 1 mm thick brass plate. A quarter-wavelength copper sheet is used as a feeding balun 5 and is welded on the impedance transformation section PCB circuit board. The impedance transformation circuit board 4 uses F4B high-temperature resistant high-frequency board material to ensure good impedance matching of the low-frequency vibrator within a wide band. The low-frequency vibrator is fixed on the metal reflective base plate 1 through five Ф10×48 non-metallic support columns 6, which are 48 mm high from the metal reflective plate. This design enables the low-frequency vibrator to maintain good radiation performance in a limited space.

[0059] It can be understood that the quarter-wavelength copper sheet, as a simple and effective feeding balun 5 structure, does not require complex circuit design or additional components. It can achieve impedance matching and signal conversion functions by directly soldering it on the impedance transformation circuit board 4. The design of the quarter-wavelength copper sheet is suitable for a wider frequency band. For the low-frequency single-polarization oscillator 3 (698-960MHz), the quarter-wavelength copper sheet can provide stable impedance transformation throughout its entire frequency band, ensuring the performance consistency of the antenna at different frequencies.

[0060] In some embodiments, an antenna cover 17 is provided outside the low-frequency single-polarization vibrator 3 and the high-frequency dual-polarization vibrator 7, and the cover is connected to the assembled antenna through metal self-tapping screws; wherein, the antenna cover 17 can effectively protect the internal vibrator, circuit board and other components, prevent the influence of the external environment (such as dust, moisture, ultraviolet rays, etc.) on the antenna, and extend the service life of the antenna; the cover can be made of weather-resistant plastic material with good anti-aging and anti-corrosion properties to ensure the long-term and stable operation of the antenna in various environments.

[0061] In some embodiments, the low-frequency single-polarized vibrator is installed at the rear end of the metal reflective bottom plate. By installing the connecting combiner board below the low-frequency single-polarized vibrator and fixing it on the metal reflective bottom plate, the influence on the radiation effect of the high-frequency dual-polarized vibrator can be avoided. The high-frequency dual-polarized vibrator is fixed on the metal reflective bottom plate 144.5 mm in front of the low-frequency vibrator. Based on the antenna design in the above embodiment, the electrical performance parameters of the single-polarized wall-mounted antenna in this application can meet the following requirements:

[0062] Frequency range(MHz) 698～960 / 1710～2700 / 3300～3800 ESWR ≤1.5 Input impedance(Ω) 50 Average gain (dBi) ≥5 / ≥7 / ≥7.5 Horizontal beam width (°) 90 / 75 / 65 / 60 Vertical lobe width (°) 85 / 65 / 55 / 50 Front to back ratio (dB) ≥10 / ≥15 / ≥15 Three-to-three intermodulation (dBm) ≤-107(2×33dBm). Polarization form vertical Maximum power(W) 50

[0063] In some embodiments, the installation steps of the single-polarization wall-mounted antenna provided in the present application may include: installing a combiner board and two corner reflectors of different lengths on a metal reflective base plate using non-metallic rivets; fixing the vertically polarized end of the assembled high-frequency dual-polarization vibrator (vertical polarization vibrator) on the anti-metal reflective base plate perpendicular to the ground using metal screws, and then welding the feeding cable of the high-frequency dual-polarization vibrator to the high-frequency port of the combiner board; fixing the low-frequency single-polarization vibrator on the metal reflective base plate using non-metallic screws, and then welding the feeding port of the low-frequency single-polarization vibrator to the upper port of the feeding balun, and welding the lower port of the feeding balun to one end of the impedance transformation circuit board, and connecting the other port of the impedance transformation circuit board to the low-frequency port of the combiner board using a 141-1.5 cable; welding the main feeder cable of the antenna exposed outside the outer cover to the combining port of the combiner board; connecting the antenna cover to the assembled antenna with metal self-tapping screws.

[0064] In summary, the present invention can integrate the intermediate frequency and high frequency vibrators into a high frequency dual polarization vibrator by optimizing the vibrator structure and combiner design. The high frequency dual polarization vibrator can achieve a frequency band of 1700-3800 MHZ by adding four excitation vibrators, and form an array with a low frequency single polarization vibrator of 698-960 MHz. This design not only ensures that the antenna has good matching and stable electrical performance in a wide frequency band, covering all frequency bands of mobile communications 2G, 3G, 4G, and 5G, but also can effectively reduce the number of vibrators, simplify the antenna structure, and reduce the volume of the antenna (282*180*60) (mm), thereby saving material and installation costs.

[0065] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A single-polarized wall-mounted antenna, characterized in that: include: A metal reflective bottom plate, and a low-frequency single-polarization vibrator and a high-frequency dual-polarization vibrator arranged on the metal reflective bottom plate; Wherein, a combiner board is arranged below the low-frequency single-polarization vibrator, the low-frequency single-polarization vibrator is welded on the impedance transformation circuit board through a feeding balun, the other end of the impedance transformation circuit board is connected to the low-frequency port of the combiner board, the vertically polarized vibrator in the high-frequency dual-polarization vibrator is connected to the high-frequency port of the combiner board, and the combining port of the combiner board is connected to the antenna main feeder cable; Two high-frequency guiding vibrators are arranged above the high-frequency dual-polarization vibrator, and two corner reflection plates of different lengths are fixedly installed on both sides of the high-frequency dual-polarization vibrator.

2. The single-polarized wall-mounted antenna according to claim 1, characterized in that: The low-frequency single-polarization oscillator is made of a 1mm thick brass plate and is fixed on the metal reflective bottom plate through a plurality of non-metallic support columns.

3. The single-polarized wall-mounted antenna according to claim 1, characterized in that: The feeding balun includes a quarter-wavelength copper sheet, and the low-frequency single-polarization vibrator is welded to the impedance transformation circuit board through the quarter-wavelength copper sheet. The impedance transformation circuit board is made of F4B high-temperature resistant high-frequency plate material.

4. The single-polarized wall-mounted antenna according to claim 1, characterized in that: The high-frequency dual-polarization vibrator is made of 1mm thick double-sided copper foil FR4 epoxy resin board and welded on a metal feed base. The metal feed base serves as a vibrator balun and a support frame and is fixed to the metal reflective bottom plate by screws.

5. The single-polarized wall-mounted antenna according to claim 1, characterized in that: The high-frequency dual-polarization vibrator includes a high-frequency radiation vibrator and four excitation vibrators attached to its edge. The distance between the excitation vibrator and the high-frequency radiation vibrator is 0.15 mm, so that the frequency bandwidth is increased to 1700-3800 MHz.

6. The single-polarized wall-mounted antenna according to claim 1, characterized in that: The two high-frequency director vibrators are aluminum discs, and the distance between them and the high-frequency dual-polarization vibrator is 8 mm. The high-frequency director vibrator is fixed on the high-frequency dual-polarization vibrator through a plurality of non-metallic pillars.

7. The single-polarized wall-mounted antenna according to claim 1, characterized in that: The combiner plate is placed below the low-frequency vibrator and is fixed on the metal reflective bottom plate by non-metallic rivets.

8. The single-polarized wall-mounted antenna according to claim 1, characterized in that: The short-angle reflector is located on the inner side of both sides of the high-frequency dual-polarization vibrator, and the long-angle reflector is located on the outer side of both sides of the high-frequency dual-polarization vibrator. The distance between the two short-angle reflectors is smaller than the distance between the two long-angle reflectors.

9. The single-polarized wall-mounted antenna according to claim 1, characterized in that: A standing wave debugging piece made of aluminum is fixed at the front lower part of the high-frequency dual-polarization vibrator.

10. The single-polarized wall-mounted antenna according to claim 1, characterized in that: Antenna covers are arranged outside the low-frequency single-polarization vibrator and the high-frequency dual-polarization vibrator, and the covers are connected to the assembled antennas through metal self-tapping screws.

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