An integrated cloaked water column antenna

Abstract

The utility model provides a kind of integrated stealth water column antenna, through the integration design of shell, water pump assembly, ground net plate and signal transmission component, significantly reduce antenna volume and promote stealth performance, shell columnar structure inlaying injection channel and isolation magnetic ring, realize the physical isolation of radio frequency signal and seawater, avoid the radar scattering problem caused by exposed metal parts of traditional shipborne antenna;Water pump assembly is directly connected with the lower side of shell, and forms radiator by injecting seawater, and after communication, pump can be stopped to realize antenna invisibility, signal transmission component and ground net plate are horizontally arranged on the upper end surface of shell, form compact plane layout, ground net plate arranged on the upper end surface of shell floats in sea level during use, only makes nozzle part above sea level, greatly enhances stealth performance, avoids the technical problem that water column antenna in the prior art is only applicable to ship platform use, use scene has great limitation, cannot meet the stealth demand.

Description

Technical Field

[0001] This utility model belongs to the field of water column antenna technology, specifically relating to an integrated stealth water column antenna. Background Technology

[0002] In the field of wireless communication, although traditional solid metal antennas are widely used, they have significant limitations in scenarios such as submarines and small ships. They are bulky, have prominent outlines that make them easy to destroy, and have a large radar cross section, which is not conducive to stealth. The contradiction between antenna size and efficiency is particularly prominent in shortwave / longwave communication.

[0003] Water column antennas were developed to address these pain points: they utilize the conductivity of seawater or salt solutions, using a high-pressure water pump to form a stable water column as a radiator. During communication, the water column forms a shape to transmit and receive signals; during non-communication periods, the water pump is turned off to make the antenna invisible. This avoids the vulnerability of traditional antennas to destruction and significantly improves radiation efficiency due to the much larger size of the water column compared to conventional antennas. More importantly, its structural flexibility is extremely high—by controlling the height of the liquid column, the dielectric properties of the filling liquid, or using water-dielectric resonance, patch designs, etc., flexible reconfiguration of radiation patterns, frequencies, and polarization can be achieved. Combined with technologies such as water-electricity separators to solve the problem of short circuits between electrical signals and the ocean, it demonstrates unique advantages such as high efficiency, low profile, and stealth resistance in naval ship and submarine communications and disaster emergency scenarios, becoming an important alternative to traditional solid-state antennas.

[0004] For example, patent application CN201811420753.2 discloses a shipborne seawater stealth antenna. This patent achieves the effect of a water column antenna by combining a jet control system, a jet sleeve, and some electrical components. In some special scenarios, such as secret ocean operations, relay communication is often used to improve security. However, the shipborne seawater stealth antenna in this patent is large in size, requires many supporting facilities, and is only suitable for use on ship platforms. Its stealth performance is still poor, and it has significant limitations in application scenarios, failing to meet the technical problems of stealth requirements. Utility Model Content

[0005] To address the technical problem that existing water column antennas are only suitable for use on ship platforms, have limited application scenarios, and cannot meet stealth requirements, this invention provides an integrated stealth water column antenna.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An integrated stealth water column antenna includes: a housing, a water pump assembly, a grounding grid, and a signal transmission assembly;

[0008] The housing is cylindrical and has an injection channel arranged along the axis inside. An isolation magnetic ring is sleeved around the injection channel, and the upper end of the injection channel extends out of the upper end face of the housing to form a nozzle.

[0009] The water pump assembly is connected to the lower side of the housing, and the outlet of the water pump assembly is connected to the lower end of the spray channel.

[0010] The signal transmission component and the grounding grid are horizontally arranged on the upper surface of the housing;

[0011] The signal transmission component is arranged around the nozzle, and the grounding plate is arranged around the signal transmission component.

[0012] Optionally, the housing includes an inner housing and an outer housing fixedly connected at the bottom end.

[0013] There is a receiving gap between the inner shell and the outer shell;

[0014] The inner shell encloses and forms the injection channel;

[0015] The isolation magnetic ring is disposed in the receiving gap;

[0016] The signal transmission component is installed between the inner housing and the outer housing;

[0017] The grounding grid is installed on the upper surface of the outer casing.

[0018] Optionally, the inner diameter of the injection channel gradually decreases near the nozzle.

[0019] Optionally, the height of the nozzle is at least ten times the inner diameter of the nozzle.

[0020] Optionally, the upper end of the outer shell is provided with a connecting structure, which extends radially outward and forms a mounting position with the inner shell;

[0021] The signal transmission component is fixedly installed in the mounting position;

[0022] The grounding grid is fixedly installed on the connection structure and surrounds the signal transmission component.

[0023] Optionally, it also includes a signal cable that passes through the connection structure and is electrically connected to the signal transmission component.

[0024] Optionally, it also includes an inlet filter and a power supply cable;

[0025] The inlet filter is disposed on the lower side of the water pump assembly and is connected to the inlet of the water pump assembly.

[0026] The power supply cable is electrically connected to the water pump assembly.

[0027] Optionally, it also includes a float box disposed below the inlet filter.

[0028] Optionally, both the signal transmission component and the grounding plate are coated with a waterproof coating.

[0029] Optionally, the grounding plate is detachably connected to the upper end face of the housing.

[0030] The beneficial effects of this utility model are:

[0031] This invention provides an integrated stealth water column antenna. Through the integrated design of the shell, water pump assembly, grounding plate, and signal transmission assembly, the antenna size is significantly reduced and stealth performance is improved. The cylindrical structure of the shell embeds a jet channel and an isolation magnetic ring, achieving physical isolation between the radio frequency signal and seawater, avoiding the radar scattering problem caused by exposed metal parts in traditional shipborne antennas. The water pump assembly is directly connected to the lower side of the shell, forming a radiator by jetting seawater. Once communication ends, stopping the pump achieves antenna stealth, solving the problem of dependence on the ship platform. The grounding plate surrounding the signal transmission assembly enhances the integrity of the radiation loop, suppresses electromagnetic interference, and improves impedance matching. The signal transmission assembly and grounding plate are horizontally arranged on the upper surface of the shell, forming a compact planar layout. During use, the grounding plate on the upper surface of the shell floats above the sea level, with only the nozzle portion above the sea surface, greatly enhancing stealth performance. This integrated stealth water column antenna avoids the technical problem of existing water column antennas being only suitable for use on ship platforms, with limited application scenarios and unable to meet stealth requirements. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the integrated stealth water column antenna in this utility model;

[0033] Figure 2 This is a schematic diagram of the shell portion of this utility model;

[0034] Figure 3 This is a schematic diagram of the mounting position in this utility model;

[0035] Figure 4 This is a schematic diagram of the water pump assembly in this utility model.

[0036] The components include: 1. Housing; 11. Injection channel; 12. Nozzle; 13. Inner housing; 14. Outer housing; 141. Connection structure; 15. Mounting position; 2. Water pump assembly; 21. Inlet filter; 22. Power supply cable; 3. Grounding plate; 4. Signal transmission assembly; 5. Isolation magnetic ring; 6. Radiator; 7. Signal cable; 8. Float box. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this utility model or its application or use. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0038] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0039] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0040] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0041] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0042] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0043] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0044] See Figures 1 to 4 The diagram shows an integrated stealth water column antenna provided by this utility model, including: a housing 1, a water pump assembly 2, a grounding plate 3, and a signal transmission assembly 4; the housing 1 is columnar, and has a spray channel 11 arranged along the axis inside, with an isolation magnetic ring 5 sleeved around the spray channel 11, and the upper end of the spray channel 11 extends out of the upper end surface of the housing 1 to form a nozzle 12; the water pump assembly 2 is connected to the lower side of the housing 1, and the outlet of the water pump assembly 2 is connected to the lower end of the spray channel 11; the signal transmission assembly 4 and the grounding plate 3 are horizontally arranged on the upper end surface of the housing 1; the signal transmission assembly 4 surrounds the nozzle 12, and the grounding plate 3 surrounds the signal transmission assembly 4.

[0045] In this embodiment, an integrated stealth water column antenna is provided. Through the integrated design of the housing 1, water pump assembly 2, ground grid plate 3, and signal transmission assembly 4, the antenna size is significantly reduced and the stealth performance is improved. The columnar structure of the housing 1 embeds the jet channel 11 and the isolation magnetic ring 5 to achieve physical isolation between the radio frequency signal and the seawater, avoiding the radar scattering problem caused by the exposed metal parts of traditional shipborne antennas. The water pump assembly 2 is directly connected to the lower side of the housing 1. During use, it forms a radiator 6 by jetting seawater. After communication ends, the pump is stopped to achieve antenna stealth, solving the problem of dependence on the ship platform. The design of the ground grid plate 3 surrounding the signal transmission assembly 4 enhances the integrity of the radiation loop, suppresses electromagnetic interference, and improves impedance matching. The signal transmission assembly 4 and the ground grid plate 3 are horizontally arranged on the upper surface of the housing 1 to form a compact planar layout. During use, the ground grid plate 3 set on the upper surface of the housing 1 floats on the sea surface, with only the nozzle 12 part above the sea surface, which greatly enhances the stealth performance. The integrated stealth water column antenna of this invention avoids the technical problem that existing water column antennas are only applicable to ship platforms, have limited application scenarios, and cannot meet stealth requirements.

[0046] Furthermore, in this embodiment, the housing 1 is a metal housing.

[0047] Optionally, refer to Figure 2 The housing 1 of this utility model includes an inner housing 13 and an outer housing 14 fixedly connected at the bottom end, with a receiving gap between the inner housing 13 and the outer housing 14; the inner housing 13 encloses and forms a spray channel 11; an isolation magnetic ring 5 is disposed in the receiving gap; a signal transmission component 4 is installed between the inner housing 13 and the outer housing 14; and a grounding plate 3 is installed on the upper end face of the outer housing 14.

[0048] In this embodiment, the inner shell 13 and the outer shell 14 are fixed at the bottom to form a receiving gap, providing a precise installation space for the isolation magnetic ring 5; the physical isolation of the double shell effectively reduces the risk of radio frequency signal leakage and improves the electromagnetic shielding performance; the inner shell 13 directly surrounds the injection channel 11, and the isolation magnetic ring 5 is set in the receiving gap and sleeved on the inner shell 13, providing shock protection for the isolation magnetic ring 5, ensuring the stable performance of the magnetic ring in the ocean environment, and extending the service life of the core components.

[0049] Optionally, refer to Figure 2 In this invention, the inner diameter of the injection channel 11 near the nozzle 12 gradually decreases.

[0050] In this embodiment, the flow channel design with a smaller inner diameter at the upper end of the jet channel 11 than at the lower end and a tapering shape near the nozzle 12 uses the tapering structure to accelerate the seawater flow, making the water column at the nozzle 12 outlet thinner and more stable in shape, significantly reducing the impact of strong wind interference on the integrity of the radiator.

[0051] Optionally, the height of the nozzle 12 in this invention is at least ten times the inner diameter of the nozzle 12.

[0052] In this embodiment, the height of the nozzle 12 is limited to a ratio of at least ten times its inner diameter, and the stability of the water column is ensured through geometric parameter optimization.

[0053] Optionally, refer to Figure 3 In this utility model, the upper end of the outer shell 14 is provided with a connecting structure 141, which extends radially outward and forms a mounting position 15 with the inner shell 13; the signal transmission component 4 is fixedly installed in the mounting position 15; the grounding plate 3 is fixedly installed on the connecting structure 141 and surrounds the signal transmission component 4.

[0054] In this embodiment, a radially extending connecting structure 141 is provided at the upper end of the outer shell 14 to construct a layered installation platform. The connecting structure 141 carries the signal transmission component 4 and forms an electromagnetic shielding cavity to suppress high-frequency signal leakage. The outward expansion layout increases the effective working area of ​​the grounding grid 3, and at the same time, the signal transmission component 4 and the grounding grid 3 are connected through the connecting structure 141 to realize the communication function.

[0055] Furthermore, in this embodiment, the signal transmission component 4 is a PCB board, with its component mounting surface located on the lower side.

[0056] Optionally, refer to Figure 3 The integrated stealth water column antenna in this utility model also includes a signal cable 7, which passes through the connection structure 141 and is electrically connected to the signal transmission component 4.

[0057] In this embodiment, the signal cable 7 passes through the connection structure 141 and is electrically connected to the signal transmission component 4 inside the housing 1, avoiding poor contact caused by salt spray corrosion and improving reliability in the ocean environment. At the same time, in use, especially in secret long-distance voyages, the integrated stealth water column antenna of this utility model can be used as a relay antenna. Specifically, the integrated stealth water column antenna is deployed in the ocean and electrically connected to the signal transmission component 4 through the signal cable 7. The signal cable 7 is used to transmit the received and received communication signals between the signal transmission component 4 and the ship, realizing relay communication and further improving the stealth performance and safety of the ship itself.

[0058] Optionally, refer to Figure 4 The integrated stealth water column antenna of this utility model also includes a water inlet filter 21 and a power supply cable 22; the water inlet filter 21 is disposed on the lower side of the water pump assembly 2 and is connected to the water inlet of the water pump assembly 2; the power supply cable 22 is electrically connected to the water pump assembly 2.

[0059] In this embodiment, the inlet filter 21 effectively intercepts suspended marine impurities, preventing blockage of the water pump assembly 2. The power supply cable 22 supplies power to the water pump assembly 2, and an anti-corrosion layer is installed on the power supply cable 22 to resist seawater penetration, ensuring stable power supply in floating scenarios. These two components work together to enhance the antenna's continuous operating capability in complex seawater environments, meeting the needs of emergency communication scenarios. The inlet filter 21 is detachably installed on the underside of the water pump assembly 2 to support repeated cleaning and use, reducing maintenance costs and making it particularly suitable for long-term deployment missions in the open ocean.

[0060] Optionally, refer to Figure 4 The integrated stealth water column antenna in this utility model also includes a float box 8, which is located on the lower side of the water inlet filter 21.

[0061] In this embodiment, the layout of the float box 8 located below the water inlet filter 21 enables dynamic attitude adjustment. The buoyancy provided by the float box 8 offsets the weight of the water pump assembly 2, maintaining the vertical attitude of the antenna in wind and waves. The submerged design lowers the system's center of gravity and enhances its anti-overturning capability. The material of the float box 8 can be a lightweight metal with pressure-resistant properties or an airbag to support deep-water deployment and expand communication application scenarios in submarine submerged environments.

[0062] Optionally, the signal transmission component 4 and the grounding plate 3 in this invention are coated with a waterproof coating.

[0063] In this embodiment, both the signal transmission component 4 and the grounding plate 3 are coated with a waterproof coating to form an electrochemical dual protection system. The waterproof coating effectively blocks the penetration of salt spray ions, delays the corrosion of electrical and metal components, and extends the service life of electronic devices.

[0064] Optionally, the ground grid plate 3 in this utility model is detachably connected to the upper end face of the shell 1.

[0065] In this embodiment, the grounding grid 3 is detachably connected to the upper surface of the housing 1 to achieve scene adaptive reconstruction, thereby greatly reducing the transportation volume and meeting the deployment requirements in narrow spaces. During application, different specifications of grounding grid 3 can also be replaced to quickly adapt to multi-band communication such as shortwave / ultra-shortwave, improve the antenna's environmental adaptability, and reduce the equipment cost of multi-band communication.

[0066] Specifically, the ground grid plate 3 is bolted to the upper end face of the shell 1.

[0067] When it is necessary to replace the grounding grid plate 3, remove the fasteners such as bolts of the original grounding grid plate 3, and then replace it with a grounding grid plate 3 that corresponds to the target communication frequency band. Install it using fasteners to achieve a quick replacement of the grounding grid plate 3.

[0068] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0069] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An integrated cloaked water column antenna, characterized by, include: The housing (1), the water pump assembly (2), the grounding grid (3), and the signal transmission assembly (4); The housing (1) is cylindrical and has an injection channel (11) arranged along the axis inside. An isolation magnetic ring (5) is sleeved around the injection channel (11). The upper end of the injection channel (11) extends out of the upper end face of the housing (1) to form a nozzle (12). The water pump assembly (2) is connected to the lower side of the housing (1), and the outlet of the water pump assembly (2) is connected to the lower end of the jet channel (11); The signal transmission component (4) and the grounding plate (3) are horizontally arranged on the upper surface of the housing (1); The signal transmission component (4) is arranged around the nozzle (12), and the ground grid plate (3) is arranged around the signal transmission component (4).

2. The integrated cloaked water column antenna of claim 1, wherein, The housing (1) includes an inner housing (13) and an outer housing (14) fixedly connected at the bottom end. There is an accommodating gap between the inner shell (13) and the outer shell (14); The inner shell (13) encloses and forms the injection channel (11); The isolation magnetic ring (5) is disposed in the receiving gap; The signal transmission component (4) is installed between the inner housing (13) and the outer housing (14); The grounding grid plate (3) is installed on the upper surface of the outer shell (14).

3. The integrated cloaked water column antenna of claim 2, wherein, The inner diameter of the injection channel (11) near the nozzle (12) gradually decreases.

4. The integrated cloaked water column antenna of claim 3, wherein, The height of the nozzle (12) is at least ten times the inner diameter of the nozzle (12).

5. The integrated cloaked water column antenna of claim 2, wherein, The upper end of the outer shell (14) is provided with a connecting structure (141), which extends radially outward and forms a mounting position (15) with the inner shell (13); The signal transmission component (4) is fixedly disposed in the mounting position (15); The grounding grid plate (3) is fixedly installed on the connection structure (141) and surrounds the signal transmission component (4).

6. The integrated cloaked water column antenna of claim 5, wherein, It also includes a signal cable (7) that passes through the connection structure (141) and is electrically connected to the signal transmission component (4).

7. The integrated cloaked water column antenna of claim 1, wherein, It also includes an inlet filter (21) and a power supply cable (22); The inlet filter (21) is disposed on the lower side of the water pump assembly (2) and is connected to the inlet of the water pump assembly (2); The power supply cable (22) is electrically connected to the water pump assembly (2).

8. The integrated stealth water column antenna according to claim 7, characterized in that, It also includes a float box (8), which is disposed on the lower side of the inlet filter (21).

9. The integrated stealth water column antenna according to claim 1, characterized in that, Both the signal transmission component (4) and the grounding plate (3) are coated with a waterproof coating.

10. The integrated stealth water column antenna according to claim 1, characterized in that, The ground grid plate (3) is detachably connected to the upper end face of the shell (1).

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