Hexagonal metasurface broadband high-gain antenna

Abstract

The utility model discloses a hexagonal metasurface broadband high-gain antenna, and relates to the technical field of antennas. A hexagonal metasurface broadband high-gain antenna comprises a high-gain antenna body, supporting frames are fixedly installed at the positions, close to the four corners, of the bottom of the high-gain antenna body, and ceramic bottom plates are fixedly installed at the bottoms of the multiple supporting frames. A first metasurface structure layer, a second metasurface structure layer, a first dielectric plate, a metal radiation patch, a coupling plate, a metal film, a feed plate and a second dielectric plate are arranged in the high-gain antenna main body; by arranging the metal film, the performance and the efficiency of the antenna can be improved through the metal film; the metal film is placed in the antenna, so that the conductivity of the antenna can be improved, and the capability of reflecting and absorbing electromagnetic waves is reduced, thereby enhancing the capability of receiving signals; in addition, the metal film can also be used for suppressing radiation noise and improving the transmission efficiency of current on the antenna.

Description

Technical Field

[0001] The utility model relates to the technical field of antennas, in particular to a hexagonal super-surface broadband high-gain antenna. Background Art

[0002] Under the condition of equal input power, the ratio of the power density of the signal generated by the actual antenna and the ideal radiating unit at the same point in space. It quantitatively describes the degree to which an antenna concentrates the input power. Gain is obviously closely related to the antenna pattern. The narrower the main lobe of the pattern, the smaller the side lobe, and the higher the gain. The physical meaning of gain can be understood in this way---to generate a signal of a certain size at a certain point at a certain distance, if an ideal non-directional point source is used as the transmitting antenna, an input power of 100W is required, and when a directional antenna with a gain of G = 13dB = 20 is used as the transmitting antenna, the input power is only 100 / 20 = 5W. In other words, the gain of an antenna, in terms of its radiation effect in the maximum radiation direction, is the multiple of the input power amplified compared with an ideal non-directional point source.

[0003] Chinese utility model patent CN113097733B discloses a hexagonal metasurface broadband high-gain antenna, comprising: a first metasurface unit structure layer (1), a second metasurface unit structure layer (2), an air dielectric layer (3) and a feeding ground layer (4); the first metasurface unit structure layer (1) and the second metasurface unit structure layer (2) are stacked together, and the second metasurface unit structure layer (2) and the feeding ground layer (4) are arranged up and down in a non-contact manner, and the air cavity formed between the two is the air dielectric layer (3); the first metasurface unit structure layer (1) and the second metasurface unit structure layer (2) are both printed with a plurality of hexagonal regular hexagonal metal radiation patch arrays, each of which includes a plurality of hexagonal regular hexagonal metal radiation patches, and the antenna is a wider broadband, high-gain, low-profile high-gain antenna.

[0004] However, existing high-gain antennas have poor signal reception capabilities and low heat dissipation and gain effects. Utility Model Content

[0005] The utility model provides a hexagonal super-surface broadband high-gain antenna to solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hexagonal metasurface broadband high-gain antenna, comprising a high-gain antenna body, wherein support frames are fixedly installed at the bottom of the high-gain antenna body near the four corners, and a ceramic base plate is fixedly installed at the bottom of multiple support frames, a feeding slot is opened at the top center of the ceramic base plate, and a feeding waveguide column is arranged at the bottom of the ceramic base plate, and the interior of the high-gain antenna body is provided with a first metasurface structure layer, a second metasurface structure layer, a first dielectric plate, a metal radiation patch, a coupling plate, a metal film, a feeding plate and a second dielectric plate.

[0007] Furthermore, a feeding plate is arranged on the top of the second dielectric plate, a metal film is arranged on the feeding plate, a coupling plate is arranged on the metal film, a metal radiation patch is arranged on the coupling plate, a first dielectric plate is arranged on the metal radiation patch, a second super-surface structure layer is arranged on the first dielectric plate, and a first super-surface structure layer is arranged on the second super-surface structure layer.

[0008] Furthermore, the interior of the feeding waveguide column is connected to the feeding slot.

[0009] Furthermore, a ceramic sheet is arranged inside the feed slot.

[0010] Furthermore, four feet at the bottom of the plurality of support frames are respectively fixedly connected to the top of the ceramic base plate near four peripheral positions.

[0011] Furthermore, the metal radiation patch and the coupling plate are both evenly provided with a plurality of holes.

[0012] Compared with the prior art, the utility model provides a hexagonal metasurface broadband high-gain antenna, which has the following beneficial effects:

[0013] 1. The hexagonal metasurface broadband high-gain antenna can improve the performance and efficiency of the antenna by setting a metal film. Placing the metal film inside the antenna can improve its conductivity, reduce the ability to reflect and absorb electromagnetic waves, thereby enhancing the ability to receive signals. In addition, the metal film can also be used to suppress radiation noise and improve the transmission efficiency of current on the antenna.

[0014] 2. The hexagonal metasurface broadband high-gain antenna can enhance electromagnetic wave absorption by setting a metal radiation patch and a coupling plate: metal materials have good electrical conductivity and can effectively convert electromagnetic wave energy into heat energy; therefore, placing a metal radiation patch or a coupling plate inside the antenna can absorb the power of the electromagnetic wave and convert it into heat to dissipate, thereby reducing the temperature of the antenna and improving its stability and reliability; improving gain and directivity: the introduction of the metal radiation patch and the coupling plate can make the electric field distribution between the antenna and the ground more uniform, increase the gain and directivity of the antenna, and by adjusting the shape and size of the metal radiation patch, the distribution of the electromagnetic field can be controlled to a certain extent, thereby optimizing the antenna performance; dividing space: the holes on the metal radiation patch and the coupling plate, the metal radiation patch and the coupling plate with a hole structure can divide the electromagnetic waves inside the antenna, so that the interference between different areas is small or they enhance each other. This helps to improve signal quality, reduce noise interference, and increase the signal-to-noise ratio; Lightning protection: Metal radiation patches and coupling plates can also play a role in lightning protection. When the antenna receives high voltage, they can quickly release the charge and conduct it into the ground, preventing the antenna from being damaged by excessive impact current. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a front view of the utility model;

[0017] Figure 3 This is a main structural diagram of the high-gain antenna of the utility model.

[0018] In the figure: 1. high-gain antenna body; 101. first supersurface structure layer; 102. second supersurface structure layer; 103. first dielectric plate; 104. metal radiation patch; 105. coupling plate; 106. metal film; 107. feeding plate; 108. second dielectric plate; 2. support frame; 3. feeding slot; 4. ceramic base plate; 5. feeding waveguide column. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-3The utility model discloses a hexagonal metasurface broadband high-gain antenna, comprising a high-gain antenna body 1, wherein support frames 2 are fixedly installed at the bottom of the high-gain antenna body 1 near four corners, a ceramic base plate 4 is fixedly installed at the bottom of multiple support frames 2, a feeding slot 3 is opened at the top center of the ceramic base plate 4, a feeding waveguide column 5 is arranged at the bottom of the ceramic base plate 4, and a first metasurface structure layer 101, a second metasurface structure layer 102, a first dielectric plate 103, a metal radiation patch 104, a coupling plate 105, a metal film 106, a feeding plate 107 and a second dielectric plate 108 are arranged inside the high-gain antenna body 1.

[0021] Specifically, a feeding plate 107 is arranged on the top of the second dielectric plate 108, a metal film 106 is arranged on the feeding plate 107, a coupling plate 105 is arranged on the metal film 106, a metal radiation patch 104 is arranged on the coupling plate 105, a first dielectric plate 103 is arranged on the metal radiation patch 104, a second super-surface structure layer 102 is arranged on the first dielectric plate 103, and a first super-surface structure layer 101 is arranged on the second super-surface structure layer 102.

[0022] In this embodiment, a complete high-gain antenna body 1 is formed.

[0023] Specifically, the interior of the feeding waveguide column 5 is communicated with the feeding slot 3 .

[0024] In this embodiment, the feeding waveguide column 5 is coupled to feed the antenna through the feeding slot.

[0025] Specifically, a ceramic sheet is disposed inside the feed slot 3 .

[0026] In this embodiment, the heat dissipation capacity is improved: since the ceramic sheet has good thermal conductivity and high heat capacity, using it inside the feed slot 3 can effectively reduce the temperature inside the feed slot 3, thereby improving the radiation efficiency and heat dissipation effect of the feed slot 3.

[0027] Specifically, four feet at the bottom of the plurality of support frames 2 are respectively fixedly connected to four peripheral positions near the top of the ceramic base plate 4 .

[0028] Specifically, a plurality of holes are evenly formed on the metal radiation patch 104 and the coupling plate 105 .

[0029] When in use, by setting the metal film 106, the performance and efficiency of the antenna can be improved; placing the metal film 106 inside the antenna can improve its conductivity, reduce the ability to reflect and absorb electromagnetic waves, thereby enhancing the ability to receive signals; in addition, the metal film 106 can also be used to suppress radiation noise and improve the transmission efficiency of current on the antenna; by setting the metal radiation patch 104 and the coupling plate 105, the electromagnetic wave absorption can be enhanced by the metal radiation patch 104 and the coupling plate 105: metal materials have good electrical conductivity and can effectively convert electromagnetic wave energy into heat energy; therefore, placing the metal radiation patch 104 or the coupling plate 105 inside the antenna can The power of electromagnetic waves can be absorbed and converted into heat to be dissipated, thereby reducing the temperature of the antenna and improving its stability and reliability; improving gain and directivity: the introduction of the metal radiation patch 104 and the coupling plate 105 can make the electric field distribution between the antenna and the ground more uniform, increase the gain and directivity of the antenna, and by adjusting the shape and size of the metal radiation patch 104, the distribution of the electromagnetic field can be controlled to a certain extent, thereby optimizing the antenna performance; dividing space: the holes on the metal radiation patch 104 and the coupling plate 105, the metal radiation patch 104 and the coupling plate 105 with hole structures can divide the electromagnetic waves inside the antenna, so that they have less mutual interference or enhance each other between different areas. This helps to improve signal quality, reduce noise interference, and improve signal-to-noise ratio; lightning protection: the metal radiation patch 104 and the coupling plate 105 can also play a role in lightning protection. When the antenna receives high voltage, they can quickly release the charge and conduct it into the ground to prevent the antenna from being damaged by excessive impact current.

[0030] In summary, the hexagonal metasurface broadband high-gain antenna can improve the performance and efficiency of the antenna by setting the metal film 106; placing the metal film 106 inside the antenna can improve its conductivity, reduce the ability to reflect and absorb electromagnetic waves, thereby enhancing the ability to receive signals; in addition, the metal film 106 can also be used to suppress radiation noise and improve the transmission efficiency of current on the antenna; by setting the metal radiation patch 104 and the coupling plate 105, the metal radiation patch 104 and the coupling plate 105 can enhance the absorption of electromagnetic waves: metal materials have good electrical conductivity and can effectively convert electromagnetic wave energy into heat energy; therefore, placing the metal radiation patch 104 or the coupling plate 105 Inside the antenna, the power of electromagnetic waves can be absorbed and converted into heat to be dissipated, thereby reducing the temperature of the antenna and improving its stability and reliability; Improving gain and directivity: The introduction of the metal radiation patch 104 and the coupling plate 105 can make the electric field distribution between the antenna and the ground more uniform, increase the gain and directivity of the antenna, and by adjusting the shape and size of the metal radiation patch 104, the distribution of the electromagnetic field can be controlled to a certain extent, thereby optimizing the antenna performance; Dividing space: The holes on the metal radiation patch 104 and the coupling plate 105, the metal radiation patch 104 and the coupling plate 105 with hole structures can divide the electromagnetic waves inside the antenna, so that they interfere less or enhance each other between different areas. This helps to improve signal quality, reduce noise interference, and improve signal-to-noise ratio; Lightning protection: The metal radiation patch 104 and the coupling plate 105 can also play a role in lightning protection. When the antenna receives high voltage, they can quickly release the charge and conduct it into the ground to prevent the antenna from being damaged by excessive impact current.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hexagonal metasurface broadband high-gain antenna, comprising a high-gain antenna body (1), characterized in that: Support frames (2) are fixedly installed at the bottom of the high-gain antenna body (1) near four corners, and ceramic base plates (4) are fixedly installed at the bottom of multiple support frames (2). A feeding slot (3) is opened at the top center of the ceramic base plate (4), and a feeding waveguide column (5) is arranged at the bottom of the ceramic base plate (4). The interior of the high-gain antenna body (1) is provided with a first super-surface structure layer (101), a second super-surface structure layer (102), a first dielectric plate (103), a metal radiation patch (104), a coupling plate (105), a metal film (106), a feeding plate (107) and a second dielectric plate (108).

2. The hexagonal metasurface broadband high-gain antenna according to claim 1, characterized in that: A feeding plate (107) is arranged on the top of the second dielectric plate (108), a metal film (106) is arranged on the feeding plate (107), a coupling plate (105) is arranged on the metal film (106), a metal radiation patch (104) is arranged on the coupling plate (105), a first dielectric plate (103) is arranged on the metal radiation patch (104), a second super-surface structure layer (102) is arranged on the first dielectric plate (103), and a first super-surface structure layer (101) is arranged on the second super-surface structure layer (102).

3. The hexagonal metasurface broadband high-gain antenna according to claim 1, characterized in that: The interior of the feeding waveguide column (5) is connected to the feeding slot (3).

4. The hexagonal metasurface broadband high-gain antenna according to claim 1, characterized in that: A ceramic sheet is arranged inside the feed slot (3).

5. The hexagonal metasurface broadband high-gain antenna according to claim 1, characterized in that: The four bottom feet of the plurality of support frames (2) are respectively fixedly connected to the top of the ceramic bottom plate (4) near four peripheral positions.

6. The hexagonal metasurface broadband high-gain antenna according to claim 1, characterized in that: The metal radiation patch (104) and the coupling plate (105) are both evenly provided with a plurality of holes.

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