Antenna

Abstract

The utility model relates to the technical field of antennas, and provides an antenna, which comprises a mounting seat and a plurality of radiation devices, the plurality of radiation devices are arranged on the mounting seat at intervals, and the plurality of radiation devices comprise a first radiation device and a second radiation device. A second radiation device is arranged in the plurality of first radiation device gaps, and the first radiation device and the second radiation device are different in emission frequency. According to the antenna provided by the embodiment of the utility model, the plurality of radiation devices with different frequencies are integrated on the mounting seat and are arranged in the array, so that coverage of different frequency bands is realized under the condition that the length of the antenna is not increased too much. The integration mode not only optimizes the use of space, shortens the length of the antenna, reduces the size of the antenna, and reduces the wind resistance of the antenna, thereby reducing the construction difficulty of the antenna during installation and maintenance.

Description

Technical Field

[0001] The utility model relates to the technical field of antennas, in particular to an antenna. Background Art

[0002] In the related technology, in order to achieve high gain in a specific transmission frequency band of the antenna (such as 700MHZ), it is necessary to stack array units on the antenna, but this will increase the length of the antenna. Currently, the high-gain antenna of 700MHZ is large in size, heavy in weight, and has high wind resistance, which makes the project implementation very difficult and the construction safety is worrying. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the related art. To this end, the utility model provides an antenna, which reduces the overall volume of the antenna, thereby improving the safety during antenna construction.

[0004] The utility model provides an antenna, comprising:

[0005] Mounting seat;

[0006] A plurality of radiation devices are arranged on the mounting seat at intervals, and the plurality of radiation devices include a first radiation device and a second radiation device.

[0007] The second radiation device is disposed in gaps between the plurality of first radiation devices, and the emission frequencies of the first radiation device and the second radiation device are different.

[0008] In one embodiment, the radiation device includes a vibrator unit and a director, the director includes a director rod and a plurality of director plates, the director rod extends along the length direction of the vibrator unit, and the plurality of director plates are arranged at intervals on the director rod.

[0009] In one embodiment, the guide plate is in an "X" shape, and each of the vibrator units includes four guide rods, and the four guide rods are connected to the ends of the "X"-shaped guide plate in a one-to-one correspondence.

[0010] In one embodiment, the number of the second radiation devices is the same as that of the first radiation devices, and both are arranged in an array, and the second radiation devices are disposed in a gap between two adjacent first radiation devices.

[0011] In one embodiment, each of the radiation devices is covered with a fixed cover.

[0012] In one embodiment, a reflective plate is further included. The reflective plates are arranged on two sides of the mounting base opposite to each other, and the reflective plates are bent toward the radiation device.

[0013] In one embodiment, the reflective plate is a bent plate having a plurality of bent surfaces.

[0014] In one embodiment, a feeding network is further included, and the feeding network is electrically connected to the radiation device.

[0015] In one embodiment, a metal cover is provided on a side of the mounting base facing away from the radiation device, the feeding network is arranged in the metal cover, and the metal cover and the mounting base are sealed.

[0016] In one embodiment, a fixing component is further included, and the fixing component is arranged on a side of the mounting base away from the radiation device.

[0017] In one embodiment, the fixing assembly comprises:

[0018] A fixed support, the fixed support is connected to the mounting seat;

[0019] A movable bracket is movably connected to the fixed support so that the movable bracket can move relative to the fixed bracket, thereby changing the installation angle of the antenna relative to the antenna installation surface.

[0020] The antenna provided in the embodiment of the present application can significantly reduce the size of the antenna by placing the high-frequency oscillator in the gap between the low-frequency oscillator. In addition, multiple radiation devices with different frequencies are integrated on the mounting base and arranged in an array, so as to achieve coverage of different frequency bands without increasing the length of the antenna too much. This integration method not only optimizes the use of space, shortens the length of the antenna, reduces the size of the antenna, and reduces the wind resistance of the antenna itself, thereby reducing the construction difficulty of the antenna during installation and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the present application or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 It is a schematic diagram of the antenna structure provided by the utility model;

[0023] Figure 2 yes Figure 1 A local enlarged view of point A;

[0024] Figure 3 yes Figure 1 A partial enlarged view of point B;

[0025] Figure 4This is another structural schematic diagram of the antenna provided by the utility model;

[0026] Reference numerals:

[0027] 100, mounting seat; 110, metal cover;

[0028] 200, radiation device; 201, first radiation device; 202, second radiation device; 210, first array unit; 220, second array unit; 230, director; 231, director rod; 232, director sheet;

[0029] 300, fixed cover;

[0030] 400, reflecting plate; 410, bending surface;

[0031] 500, fixed component; 510, fixed bracket; 520, movable bracket. DETAILED DESCRIPTION

[0032] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0033] In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0034] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it 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 directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0035] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0036] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model embodiment. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0037] In related technologies, in order to achieve high gain in a specific transmission frequency band of an antenna, for example, in order to achieve high gain in a 700 MHz antenna, it is necessary to stack array units on the antenna, but this will increase the length of the antenna. Currently, the 700 MHz high-gain antenna is large in size, heavy in weight, and has high wind resistance, making it very difficult to implement and the construction safety is worrying.

[0038] like Figure 1-Figure 4 As shown, the utility model provides an antenna, including a mounting base 100 and a plurality of radiation devices 200, wherein the radiation devices 200 are arranged at intervals on the mounting base 100, and the radiation devices 200 are arranged in an array on the mounting base 100, and the transmission frequencies of at least two adjacent radiation devices 200 are different. The radiation device 200 may include a first radiation device 201 and a second radiation device 202, wherein the transmission frequency of the first radiation device 201 may be 700MHZ, and the transmission frequency of the second radiation device 202 may be 2.6GHZ, the first radiation device 201 is arranged in an array on the mounting base 100, and the second radiation device 202 is arranged between the gaps of the first radiation device 201. In this way, the radiation performance of the antenna can be optimized, and the gain effect of the antenna can be increased while reducing the difficulty of antenna installation.

[0039] For example, a 700 MHz frequency requires a longer antenna element to achieve high gain, while a 2.6 GHz frequency requires a shorter antenna element. By staggering these radiation devices 200 of different frequencies, space can be effectively utilized while reducing the space occupied by the antenna and the overall wind resistance.

[0040] Among them, the low-frequency radiation device 200 (such as 700MHz) can be set as a longer unit, and the high-frequency radiation device 200 (such as 2.6GHz) can be arranged in the gap between them, so that different frequency bands can be covered without increasing too much length. This integration method not only optimizes the use of space, but also reduces the weight of the antenna and reduces the risk during installation and maintenance, because reducing the weight of the antenna structure can make the installation safer.

[0041] According to the antenna of the embodiment of the utility model, multiple radiation devices 200 with different frequencies are integrated and arranged in an array on the mounting base 100, so as to achieve coverage of different frequency bands without increasing the length of the antenna too much. This integration method not only optimizes the use of space, shortens the length of the antenna, reduces the size of the antenna, and reduces the wind resistance of the antenna itself, thereby reducing the construction difficulty of the antenna during installation and maintenance.

[0042] like Figure 1 As shown, in one embodiment of the utility model, the radiation device 200 includes a vibrator unit and a director 230. The vibrator unit includes a first array unit 210 and a second array unit 220. The first array unit 210 is arranged in an array on the mounting base 100. There is a gap between any two adjacent first array units 210, and the second array unit 220 is arranged in the gap. The vibrator unit is the basic radiation element of the antenna, which is responsible for converting radio frequency electrical energy into electromagnetic waves and emitting them into space, or conversely receiving electromagnetic waves and converting them into radio frequency electrical energy. The design of the vibrator unit determines the basic radiation characteristics of the antenna, including the operating frequency, gain, bandwidth and radiation pattern.

[0043] The first array unit 210 and the second array unit 220 have different transmission frequencies. For example, the first array unit 210 may be for a lower transmission frequency (such as 700 MHz), while the second array unit 220 may be for a higher transmission frequency (such as 2.6 GHz). Since the antenna units of the lower frequency are usually larger in size, there is a gap between them, which provides space for the layout of the smaller high-frequency antenna units.

[0044] In this configuration, the first array unit 210 can be arranged in a 2×2 layout, that is, forming a 4-unit array, and the second array unit 220 can be placed in the gaps between these units. For example, the number of the second array unit 220 can also be 4. In this way, compared with an antenna with only 4 700MHZ array units, the combined antenna of 4 700MHZ array units and 4 2.6GHZ array units can achieve a gain greater than 19dBi. Compared with traditional base station antennas with the same gain level, when the antenna width size is similar, the length of the antenna provided by the utility model can be shortened from 2.5 meters to 0.7 meters, the overall size of the antenna is greatly reduced, the windward area is reduced by 60%, and the weight of the antenna is reduced by 50%.

[0045] Similarly, in other embodiments, the first array units 210 may also adopt a 3×3 layout scheme, that is, forming a 9-unit array. The number of the second array units 220 may be adjusted according to actual conditions and design requirements, and may be less than, equal to, or greater than the number of gaps between the first array units 210.

[0046] This provides higher spectrum utilization and better antenna performance while still maintaining a relatively compact antenna size. Integrating array elements of different frequencies allows operators to support multiple frequency bands with a single antenna, which is a significant advantage for applications such as mobile communications. Through intelligent design and optimized array configuration, the required gain and coverage can be achieved within limited space and weight requirements, which is particularly valuable for antenna systems installed in limited spaces such as urban blocks or existing network structures.

[0047] like Figure 1-Figure 3 As shown, in one embodiment of the present invention, the director 230 includes a director rod 231 and a director sheet 232. The director rod 231 is provided on the vibrator unit, and extends along the axis direction of the vibrator unit. The director sheets 232 are arranged at intervals on the director rod 231. The director rod 231 is a rod-shaped structure installed on the vibrator unit and extending along the axis direction of the vibrator unit.

[0048] The purpose of the guide rod 231 is to guide the electromagnetic energy to radiate in a predetermined direction, thereby helping to improve the directivity of the antenna. By concentrating energy in a specific direction, the gain of the antenna in that direction can be increased, while possibly reducing unnecessary radiation in other directions, which helps to improve signal transmission efficiency and reduce interference.

[0049] The guide plates 232 are a series of sheet structures arranged on the guide rod 231, which are arranged at intervals and have a certain distance between each other. The function of the guide plates 232 is to form a guiding structure together with the vibrator unit and the guide rod 231, which can affect the propagation direction and intensity distribution of electromagnetic waves. By arranging the guide plates 232 on the guide rod 231, the radiation pattern of the antenna can be more finely controlled, thereby obtaining the expected radiation characteristics, such as a narrower beam width or a higher forward gain.

[0050] For example, Figure 1 As shown, in some embodiments of the present invention, the first array unit 210 can be for a lower transmission frequency (such as 700MHz), while the second array unit 220 can be for a higher transmission frequency (such as 2.6GHz). Due to the high frequency and short wavelength of 2.6GHz, more steering units can be arranged above the 2.6GHz oscillator unit compared to the 700MHz oscillator unit, thereby obtaining a higher gain than the 700MHz oscillator unit. For example, 11 steering units can be designed above. From the simulation results, the gain of a single 2.6GHz oscillator unit reaches 14.9dBi, and the gain of the entire antenna array reaches 21dBi.

[0051] like Figure 1 and Figure 4 As shown, in some embodiments of the present invention, each radiation device 200 is covered with a fixed cover 300, and the array unit, the guide rod 231 and the guide plate 232 are all arranged in the fixed cover 300. The fixed cover 300 provides physical protection for the internal antenna elements, and can prevent damage caused by environmental factors such as wind, rain, hail, dust and the like. In addition, the fixed cover 300 can achieve environmental isolation of the internal elements, such as protecting the antenna from moisture and salt spray, thereby extending the service life of the antenna.

[0052] In some embodiments of the utility model, the material of the fixed cover 300 is ABS material. ABS has good weather resistance and can resist ultraviolet rays and temperature changes when exposed to outdoor environments, so it is suitable for protecting antenna elements from bad weather. ABS has little effect on radio frequency signals and has good electromagnetic wave transmittance, which means that it will not significantly hinder the antenna from transmitting or receiving electromagnetic waves, thereby maintaining the performance of the antenna. ABS has good strength and toughness and can withstand impact and distortion, which is very important for applications such as antenna covers that may encounter physical collisions. Compared with other materials such as metal, ABS is light in weight, which helps to reduce the weight of the entire antenna system and facilitates installation and maintenance.

[0053] like Figure 1-Figure 3As shown, in some embodiments of the utility model, the director 232 is "X" shaped, and the spacing distance between any two adjacent director plates 232 is equal. The "X"-shaped director plate 232 can effectively control the radiation pattern of electromagnetic waves. By accurately calculating the angle and arrangement of the director plate 232, the directivity of the antenna can be enhanced and the gain in a specific direction can be improved. The design and layout of the director plate 232 can affect the input impedance of the antenna. By adjusting the spacing distance between the director plates 232, better impedance matching can be achieved, thereby optimizing the performance of the antenna. The "X"-shaped director plate 232 helps to maintain the symmetry of the antenna radiation pattern, which is beneficial for achieving uniform coverage and reducing blind spots. The "X"-shaped structure is usually physically stable, which can improve the mechanical stability of the entire antenna structure and resist the influence of the external environment.

[0054] like Figure 1 and Figure 4 As shown, in some embodiments of the utility model, the antenna also includes a reflection plate 400, which is relatively arranged on both sides of the mounting base 100, and the reflection plate 400 is bent toward the direction of the radiation device 200. By setting the reflection surface, the electromagnetic waves emitted by the antenna can be reflected, so that the reflected waves are superimposed on the electromagnetic waves, thereby making the radiation of the antenna gain.

[0055] like Figure 1 As shown, in some embodiments of the present invention, the reflector 400 is a bent plate, and the bent plate has a plurality of bent surfaces 410, and the planes where the plurality of bent surfaces 410 are located are parallel to each other. In this way, the reflector 400 can reflect electromagnetic waves on the plurality of bent surfaces 410, thereby enhancing the radiation capability of the antenna in a specific direction, thereby improving the directivity of the electromagnetic waves. Through the bent design, the reflector 400 can more effectively prevent or reduce the radiation of electromagnetic waves in unnecessary directions, which helps to reduce interference with other communication systems.

[0056] In some embodiments of the utility model, the antenna further includes a feed network, which is electrically connected to the radiating device 200. A properly designed feed network can ensure impedance matching between the antenna and the transmission line, thereby minimizing reflection and power loss. In an array antenna, the feed network is responsible for distributing the RF power to each radiating element equally or in a specific proportion. In order to achieve a specific radiation pattern or beamforming, the feed network can adjust the phase of each radiating element so that they radiate in a coordinated manner.

[0057] like Figure 4As shown, in some embodiments of the present invention, a metal cover 110 is provided on the side of the mounting base 100 facing away from the radiation device 200, the feeding network is arranged in the metal cover 110, and the metal cover 110 and the mounting base 100 are sealed. The metal cover 110 can be made of a metal material with good electromagnetic shielding properties, which can effectively protect the feeding network part of the antenna from external electromagnetic interference, and can also protect the feeding network from physical damage. The sealing design between the metal cover 110 and the mounting base 100 is intended to prevent moisture, dust and other substances that may damage electronic components from entering the area where the feeding network is located. This seal can be in the form of a rubber gasket, a sealant, a special caulking, etc. The antenna provided by the utility model has a short feeding network, which can ensure that the antenna obtains a higher gain at the cost of extremely low insertion loss.

[0058] In some embodiments of the present invention, the metal cover 110 and the reflector 400 can be made of six-series aluminum, which usually contains magnesium and silicon as its main alloying elements. This alloy design provides high tensile strength and good fatigue resistance. These aluminum materials can be easily processed by cutting, drilling and forming, which is very beneficial for manufacturing complex shapes of the reflector 400 and the metal cover 110. In addition, the six-series aluminum has good corrosion resistance and can maintain its corrosion resistance even when exposed to humid air for a long time in outdoor environments, which is a characteristic particularly required for antenna components.

[0059] like Figure 1 and Figure 4 As shown, in some embodiments of the present invention, the antenna further includes a fixing assembly 500, which is disposed on a side of the mounting base 100 away from the radiation device 200. The fixing assembly 500 can provide structural support for the antenna, so that the antenna can be securely mounted at a specific location, such as a wall of a building, a telecommunication tower, or other structures.

[0060] like Figure 4 As shown, in some embodiments of the utility model, the fixing assembly 500 includes a fixed support and a movable bracket 520, the fixed support is connected to the mounting base 100, and the movable bracket 520 is movably connected to the fixed support so that the movable bracket 520 can move relative to the fixed bracket 510, thereby changing the installation angle of the antenna relative to the antenna installation surface.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An antenna, characterized in that: include: Mounting seat (100); A plurality of radiation devices are arranged at intervals on the mounting seat (100), the plurality of radiation devices comprising a first radiation device (201) and a second radiation device (202), The second radiation device (202) is arranged in the gaps between the plurality of the first radiation devices (201), and the emission frequencies of the first radiation device (201) and the second radiation device (202) are different.

2. The antenna according to claim 1, characterized in that The radiation device comprises a vibrator unit and a director (230), wherein the director (230) comprises a director rod (231) and a plurality of director plates (232), wherein the director rod (231) extends along the length direction of the vibrator unit, and the plurality of director plates (232) are arranged at intervals on the director rod (231).

3. The antenna according to claim 2, characterized in that: The guide piece (232) is in an "X" shape, and each of the vibrator units comprises four guide rods, which are connected to the ends of the "X"-shaped guide piece (232) in a one-to-one correspondence.

4. The antenna according to claim 1, characterized in that: The number of the second radiation devices is the same as that of the first radiation devices, and both are arranged in an array, and the second radiation devices are arranged in a gap between two adjacent first radiation devices.

5. The antenna according to claim 2, characterized in that: Each of the radiation devices (200) is covered with a fixed cover (300).

6. The antenna according to claim 1, characterized in that It also comprises a reflection plate (400), wherein the reflection plate (400) is arranged on two sides of the mounting seat (100) opposite to each other, and the reflection plate (400) is bent towards the direction of the radiation device (200).

7. The antenna according to claim 6, characterized in that The reflection plate (400) is a bent plate having a plurality of bent surfaces (410).

8. The antenna according to claim 1, characterized in that: It also includes a feeding network, which is electrically connected to the radiation device (200).

9. The antenna according to claim 8, characterized in that A metal cover (110) is provided on a side of the mounting seat (100) facing away from the radiation device (200); the feed network is arranged in the metal cover (110); and the metal cover (110) and the mounting seat (100) are sealed.

10. The antenna according to claim 1, characterized in that: It also comprises a fixing assembly (500), wherein the fixing assembly (500) is arranged on a side of the mounting seat (100) facing away from the radiation device (200).

11. The antenna according to claim 10, characterized in that: The fixing assembly (500) comprises: A fixed support, the fixed support being connected to the mounting seat (100); A movable bracket (520) is movably connected to the fixed bracket so that the movable bracket (520) can move relative to the fixed bracket (510), thereby changing the installation angle of the antenna relative to the antenna installation surface.

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