Radome for marine satellite communication device

Abstract

The present invention provides a radome for a marine satellite communication device, comprising a wave-transparent radome body and a wave-absorbing cylinder body. The wave-transparent radome body is located above the marine satellite communication device, and the wave-absorbing cylinder body is arranged around the marine satellite communication device. A bottom edge of the wave-transparent radome body is hermetically connected to a top edge of the wave-absorbing cylinder body. The present invention can ensure that a marine satellite communication antenna has good wave transparency in the skyward direction, and can also ensure that good wave absorption efficiency is achieved in the horizontal direction. The present invention is low in cost and has a simple structure and high technical maturity.

Description

A satellite communication equipment radome for a ship TECHNICAL FIELD

[0001] The present application belongs to the technical field of radomes, and particularly relates to a satellite communication equipment radome for a ship. BACKGROUND

[0002] Affected by wind and waves, the water surface ship will change posture on the sea. In order to ensure the efficiency of satellite communication, the satellite communication antenna of the ship needs to be able to adjust the posture at any time to align the communication satellite. Under this demand, the antenna structure with higher gain such as parabolic antenna and ring focus transmitter is more suitable for use as a satellite communication antenna for a ship. Therefore, the satellite communication system for a ship generally adopts a parabolic antenna. However, the parabolic antenna has obvious shortcomings, one of which is that it will cause obvious radar echo.

[0003] Considering that the satellite communication of the ship is greatly affected by driving power, mechanical structure weight, wind direction and speed, and inertia, the satellite communication antenna radome is generally provided. The satellite communication antenna radome can also protect the antenna equipment from being affected by these natural factors, eliminate wind load and wind moment, thereby effectively reducing the motion wear, corrosion and aging of the antenna, and prolonging the service life of the antenna.

[0004] When the radome is designed, manufactured and produced, the component size, radome wall thickness, material selection, structural details and the like must be considered for electrical properties. First of all, the uniform single wall thickness or the core thickness of the sandwich structure must be designed according to the working wavelength, so as to reduce reflection while being able to withstand the maximum expected aerodynamic load and other loads without being damaged or deformed. Secondly, the dielectric constant and loss tangent of the radome at the working frequency should be low, and the glass fiber with good transmittance should be used as the main material. SUMMARY

[0005] The technical problem to be solved by the present application is to provide a satellite communication equipment radome for a ship in view of the above-mentioned problems.

[0006] The technical scheme adopted by the present application to solve the above-mentioned technical problem is: a satellite communication equipment radome for a ship, characterized in that it comprises a wave-transparent radome body and a wave-absorbing cylinder body, the wave-transparent radome body is above the satellite communication equipment for a ship, the wave-absorbing cylinder body is arranged around the satellite communication equipment for a ship, and the bottom edge of the wave-transparent radome body is sealingly connected with the top edge of the wave-absorbing cylinder body.

[0007] According to the above scheme, the wave-transparent radome body is a hemispherical structure.

[0008] According to the above scheme, the wave-absorbing cylinder body is a conical cylinder structure with increasing diameter from bottom to top.

[0009] According to the above scheme, the wave-absorbing cylinder is a sandwich structure composed of an outer wave-transparent layer, a wave-absorbing sandwich layer and a reflecting layer.

[0010] According to the above scheme, the wave-transparent cover body and the outer wave-transparent layer are both single-layer glass fiber structures or glass fiber sandwich structures.

[0011] According to the above scheme, the wave-absorbing sandwich layer is a foam sandwich structure or a honeycomb sandwich structure.

[0012] According to the above scheme, the wave-absorbing sandwich layer is impregnated with conductive particles or metal magnetic micro-powder.

[0013] According to the above scheme, the included angle between the wave-absorbing cylinder and the deck is 70°-85°, and the vertical height of the wave-absorbing cylinder is not greater than the height of the center of the ship-borne satellite communication antenna from the deck.

[0014] According to the above scheme, the reflecting layer is made of a mixture of carbon fibers and metal paint.

[0015] According to the above scheme, the reflecting layer is made of a mixture of glass fibers and metal paint.

[0016] The ship-borne satellite communication equipment antenna cover provided by the application can ensure good wave-transparency of the ship-borne satellite communication antenna in the upward direction without changing the design of the satellite communication antenna, and can also ensure good wave-absorbing effect in the horizontal direction, and has low cost, simple structure and high technical maturity. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some of the embodiments of the application, and therefore should not be regarded as a limitation on the scope, and for those skilled in the art, other related drawings can also be obtained without creative labor.

[0018] Fig. 1 is a structural schematic diagram of an embodiment of the application. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solutions and advantages of the embodiments of the application more clear, the following will combine the drawings in the embodiments of the application to clearly and completely describe the technical solutions in the embodiments of the application. Obviously, the described embodiments are some of the embodiments of the application, not all the embodiments. The components of the embodiments of the application described and shown in the drawings here can be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the application claimed, but merely represents selected embodiments of the application. All other embodiments obtained based on the embodiments of the application by those of ordinary skill in the art without creative effort are within the scope of the application.

[0021] It should be noted that similar reference numbers and letters refer to similar items in the following drawings, and therefore, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings.

[0022] In the description of the application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the product of the application is used, and are only for the convenience of describing the application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0023] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the component must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0024] In the description of the application, it should also be noted that unless otherwise explicitly specified and limited, the terms "provided", "mounted", "connected", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements inside. For those of ordinary skill in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0025] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature can include that the first and second features are in direct contact, or can include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "over" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher in horizontal height than the second feature. The first feature "under", "below" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the first feature is lower in horizontal height than the second feature.

[0026] The features and performances of the present application are further described in detail below in combination with embodiments.

[0027] As shown in Fig. 1, a ship satellite communication device radome comprises a wave-transparent cover body 1 and a wave-absorbing cylinder body, the wave-transparent cover body is above a ship satellite communication device 2, the wave-absorbing cylinder body is arranged around the ship satellite communication device, and the bottom edge of the wave-transparent cover body is sealingly connected with the top edge of the wave-absorbing cylinder body.

[0028] The wave-transparent cover body is a hemispherical structure, and the wave-absorbing cylinder body is a conical cylinder structure with increasing diameter from bottom to top.

[0029] The wave-absorbing cylinder body is a sandwich structure composed of an outer wave-transparent layer 3, a wave-absorbing sandwich layer 4 and a reflecting layer 5.

[0030] The wave-transparent cover body and the outer wave-transparent layer are both single-layer glass fiber structures or glass fiber sandwich structures, which are main force-bearing structures and simultaneously realize good wave-transparent function, so that the ship satellite communication device antenna is completely isolated from the outside world, and the corrosion of seawater, sea salt and hot and humid air on the antenna is eliminated.

[0031] The wave-absorbing sandwich layer is a foam sandwich structure or a honeycomb sandwich structure, which realizes radar wave absorbing function. The wave-absorbing sandwich layer is impregnated with conductive particles or metal magnetic micro powder.

[0032] The included angle θ between the wave-absorbing cylinder body and the deck is an acute angle, generally 70°-85°, and the vertical height h of the wave-absorbing cylinder body is not greater than the height H of the center of the ship satellite communication antenna from the deck.

[0033] The reflecting layer is made of a mixture of carbon fiber and metal paint or a mixture of glass fiber and metal paint. The reflecting layer can reflect horizontal direction radar waves, and simultaneously structure supports the wave-absorbing sandwich layer.

[0034] The present application can ensure that the ship satellite communication antenna has good wave-transparent performance in the sky direction, and can ensure that good wave-absorbing efficiency is realized in the horizontal direction, so that the horizontal direction stealth performance is greatly improved without changing the design of the satellite communication antenna.

[0035] The above merely provides the preferred embodiments of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art, according to the technical solution of the present application and the improved concept thereof, makes equivalent replacement or change within the technical range disclosed by the present application, and should be covered within the protection scope of the present application.

Claims

1. A radome for a marine satellite communication device, characterized in that, The application relates to a wave-transparent cover body and a wave-absorbing cylinder body, wherein the wave-transparent cover body is arranged above a satellite communication device of a ship, the wave-absorbing cylinder body is arranged around the satellite communication device, and the bottom edge of the wave-transparent cover body is sealingly connected with the top edge of the wave-absorbing cylinder body.

2. A radome for a marine satellite communication device according to claim 1, characterised in that The wave-transparent cover body is a hemispherical structure.

3. A radome for a marine satellite communication device according to claim 2, characterised in that, The wave-absorbing cylinder body is a conical cylinder structure with increasing diameter from bottom to top.

4. A radome for a marine satellite communication device according to claim 4, characterised in that, The wave-absorbing cylinder body is a sandwich structure composed of an outer wave-transparent layer, a wave-absorbing sandwich layer and a reflecting layer.

5. A radome for a marine satellite communication device according to claim 4, characterised in that, The wave-transparent cover body and the outer wave-transparent layer are both single-layer glass fiber structures or glass fiber sandwich structures.

6. A radome for a marine satellite communication device according to claim 4 or 5, characterised in that, The wave-absorbing sandwich layer is a foam sandwich structure or a honeycomb sandwich structure.

7. A radome for a marine satellite communication device according to claim 6, characterised in that, The wave-absorbing sandwich layer is impregnated with conductive particles or metal magnetic micro-powder.

8. A radome for a marine satellite communication device according to claim 1 or 7, characterised in that, The included angle between the wave-absorbing cylinder body and the deck is 70-85 degrees, and the vertical height of the wave-absorbing cylinder body is not greater than the height of the center of the satellite communication antenna of the ship from the deck.

9. A radome for a marine satellite communication device according to claim 7, wherein The reflecting layer is made of carbon fiber mixture.

10. A radome for a marine satellite communication device according to claim 7, wherein The reflecting layer is made of glass fiber and metal paint mixture.

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