A high-power microwave counterstrike device for ships

Abstract

The utility model relates to the technical field of water law enforcement equipment, concretely relates to a high -power microwave repels and strikes device for ship, including bottom plate and strike subassembly, strike subassembly includes frequency selection assembly board, L wave band striking piece, S wave band striking piece and antenna cover, L wave band striking piece produces high frequency wave emission to target ship body, is used for the shipboard radar of interference target ship body, S wave band striking piece is used for emitting the high -power microwave of S wave band high -power microwave source production to target ship body, is used for making target ship body's engine ignition system failure, through the high -power microwave repels and strikes device for ship of integration multi -frequency band interference, intelligent coupling optimization, environmental reinforcement design, solve present fast boat engine forced flameout device, integral device only aims at engine ignition system, cannot carry out multimode interference to shipboard electronic equipment, navigation system etc, and further lead to the problem that the single efficiency of interception mode is low and environmental adaptability is poor.

Description

Technical Field

[0001] This utility model relates to the field of maritime law enforcement equipment technology, and in particular to a shipborne high-power microwave denial-of-attack device. Background Technology

[0002] Speedboats, as a convenient means of water transportation, are easily exploited by criminal suspects for illegal activities such as drug trafficking and smuggling. Law enforcement agencies often encounter non-cooperation when inspecting speedboats. Therefore, a concealed and low-risk speedboat blocking device is extremely necessary.

[0003] The prior art (CN110761907B) discloses a forced shutdown device for a speedboat engine, including a low-voltage power supply, a communication control unit, a microwave signal source, a high-voltage power supply, a pulse modulator, a high-power vacuum tube, a circulating liquid cooling system, and a radiating antenna. The high-power vacuum tube can generate a transient high-power microwave signal with special parameters. This signal is coupled to the inside of the speedboat engine through the radiating antenna, which can cause the engine to shut down instantly, causing it to lose power and achieving the goal of intercepting the suspected speedboat with low damage.

[0004] However, using the above method, the entire device only targets the engine ignition system and cannot perform multi-mode interference on shipborne electronic equipment, navigation systems, etc., resulting in a single interception mode, low efficiency, and poor environmental adaptability. Utility Model Content

[0005] The purpose of this invention is to provide a high-power microwave denial-of-attack device for ships, which aims to solve the problems of existing forced engine shutdown devices for speedboats. These devices only target the engine ignition system and cannot perform multi-mode interference on shipboard electronic equipment, navigation systems, etc., resulting in a single interception mode, low efficiency, and poor environmental adaptability.

[0006] To achieve the above objectives, this utility model provides a marine high-power microwave denial-of-attack device, including a base plate and an attack assembly;

[0007] The strike assembly includes a frequency selection assembly plate, an L-band strike component, an S-band strike component, and an antenna radome.

[0008] The frequency selection assembly plate is fixedly connected to the base plate and is located on one side of the base plate; the L-band striking component is disposed on one side of the frequency selection assembly plate; the S-band striking component is disposed on one side of the frequency selection assembly plate; the radome is fixedly connected to the base plate and is located on one side of the base plate.

[0009] The L-band striking component includes two L-band horn antennas, an L-band high-power microwave source, and an L-band high-frequency signal transmission line. The two L-band horn antennas are fixedly connected to the frequency selection assembly plate and are located on one side of the frequency selection assembly plate. The L-band high-power microwave source is fixedly connected to the base plate and is located on one side of the base plate. The L-band high-frequency signal transmission line is connected to the L-band high-power microwave source and is also connected to the two L-band horn antennas and is located on one side of the L-band high-power microwave source.

[0010] The S-band striking component includes multiple S-band horn antennas, an S-band high-power microwave source, and an S-band high-frequency signal transmission line. The multiple S-band horn antennas are fixedly connected to the frequency selection assembly plate and are located on one side of the frequency selection assembly plate. The S-band high-frequency signal transmission line is connected to the S-band high-power microwave source and is also connected to the multiple S-band horn antennas and is located on one side of the S-band high-power microwave source.

[0011] The radome is made of polytetrafluoroethylene composite material with a transmittance of >90%.

[0012] The L-band high-power microwave source and the S-band high-power microwave source both use gallium nitride (GaN)-based solid-state microwave sources to generate high-power microwaves.

[0013] This invention relates to a marine high-power microwave denial-of-attack device. The frequency selection assembly plate is used to assemble the L-band and S-band attack components, which are then protected by an antenna radome. During denial-of-attack interception, the L-band attack component generates high-frequency waves and transmits them to the target ship's hull to interfere with its onboard radar. The S-band attack component transmits high-power microwaves generated by an S-band high-power microwave source to the target ship's hull to disable its engine ignition system. This marine high-power microwave denial-of-attack device, integrating multi-band interference, intelligent coupling optimization, and environmental enhancement design, solves the problems of existing speedboat engine forced shutdown devices, which only target the engine ignition system and cannot perform multi-mode interference on shipboard electronic equipment, navigation systems, etc., resulting in a single interception mode, low efficiency, and poor environmental adaptability. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2This is a schematic diagram of the structure of this utility model excluding the radome.

[0017] Figure 3 This is a side view of the present invention excluding the radome.

[0018] 101-Base plate, 102-Frequency selection assembly plate, 103-L-band striking component, 104-S-band striking component, 105-Radar radome, 106-L-band horn antenna, 107-L-band high-power microwave source, 108-L-band high-frequency signal transmission line, 109-S-band horn antenna, 110-S-band high-power microwave source, 111-S-band high-frequency signal transmission line. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0020] Please see Figures 1-3 ,in, Figure 1 This is a schematic diagram of the overall structure of this utility model. Figure 2 This is a schematic diagram of the structure of this utility model excluding the radome. Figure 3 This is a side view of the present invention excluding the radome.

[0021] This utility model provides a marine high-power microwave denial-of-attack device, comprising a base plate 101 and an attack assembly. The attack assembly includes a frequency selection mounting plate 102, an L-band attack component 103, an S-band attack component 104, and an antenna radome 105. The L-band attack component 103 includes two L-band horn antennas 106, an L-band high-power microwave source 107, and an L-band high-frequency signal transmission line 108. The S-band attack component 104 includes multiple S-band horn antennas 109, an S-band high-power microwave source 110, and an S-band high-frequency signal transmission line 111. This solution solves the problem that existing forced engine shutdown devices for speedboats only target the engine ignition system and cannot perform multi-mode interference on shipboard electronic equipment, navigation systems, etc., resulting in a single interception mode, low efficiency, and poor environmental adaptability.

[0022] In this specific embodiment, the base plate 101 is used to assemble the striking assembly.

[0023] The frequency selection assembly plate 102 is fixedly connected to the base plate 101 and located on one side of the base plate 101; the L-band strike component 103 is disposed on one side of the frequency selection assembly plate 102; the S-band strike component 104 is disposed on one side of the frequency selection assembly plate 102; the radome 105 is fixedly connected to the base plate 101 and located on one side of the base plate 101. The frequency selection assembly plate 102 is used to assemble the L-band strike component 103 and the S-band strike component 104, and then the radome 105 provides coverage and protection. During interception and denial of attacks, the L-band strike component... The striker 103 generates high-frequency waves and transmits them to the target ship's hull to interfere with the ship's onboard radar. The S-band striker 104 transmits high-power microwaves generated by the S-band high-power microwave source 110 to the target ship's hull to disable the target ship's engine ignition system. By integrating multi-band interference, intelligent coupling optimization, and environmental enhancement design, the shipborne high-power microwave denial strike device solves the problem that existing speedboat engine forced shutdown devices only target the engine ignition system and cannot perform multi-mode interference on shipboard electronic equipment, navigation systems, etc., resulting in a single interception mode, low efficiency, and poor environmental adaptability.

[0024] Secondly, the two L-band horn antennas 106 are fixedly connected to the frequency selection assembly plate 102 and are located on one side of the frequency selection assembly plate 102 respectively; the L-band high-power microwave source 107 is fixedly connected to the base plate 101 and is located on one side of the base plate 101; the L-band high-frequency signal transmission line 108 is connected to the L-band high-power microwave source 107 and is connected to the two L-band horn antennas 106 respectively and is located on one side of the L-band high-power microwave source 107. The L-band horn antennas 106 are two horn antennas placed side by side. The L-band horn antennas 106 transmit the high-power microwaves generated by the L-band high-power microwave source 107 to the target ship hull to interfere with the ship's onboard radar.

[0025] Meanwhile, multiple S-band horn antennas 109 are fixedly connected to the frequency selection assembly plate 102 and are located on one side of the frequency selection assembly plate 102 respectively; the S-band high-frequency signal transmission line 111 is connected to the S-band high-power microwave source 110 and is connected to multiple S-band horn antennas 109 respectively and is located on one side of the S-band high-power microwave source 110. The S-band horn antennas 109 consist of eight horn antennas arranged in 2 rows and 4 columns. The S-band horn antennas 109 transmit the high-power microwaves generated by the S-band high-power microwave source 110 to the target ship hull to disable the engine ignition system of the target ship hull.

[0026] In addition, the radome 105 is a polytetrafluoroethylene composite material with a transmittance of >90%.

[0027] Furthermore, both the L-band high-power microwave source 107 and the S-band high-power microwave source 110 use gallium nitride (GaN)-based solid-state microwave sources to generate high-power microwaves.

[0028] When using this utility model, the frequency selection assembly plate 102 is used to assemble the L-band strike component 103 and the S-band strike component 104, and then the antenna cover 105 provides coverage and protection. During interception and denial, the L-band horn antenna 106 consists of two horn antennas placed side-by-side. The L-band horn antenna 106 transmits high-power microwaves generated by the L-band high-power microwave source 107 to the target ship's hull to interfere with the target ship's onboard radar. The S-band horn antenna 109 consists of eight horn antennas arranged in a 2x4 grid. The S-band horn antenna 109 transmits high-power microwaves generated by the S-band high-power microwave source 110 to the target ship's hull to disable the target ship's engine ignition system. The microwave source is a gallium nitride (GaN) based solid-state microwave source, integrating L-band (1-2GHz) and S-band (2-4GHz) dual-band high-power microwave sources, supporting pulse modulation single-wave and continuous wave mode switching. Formula derivation:

[0029] Interference energy density threshold:

[0030]

[0031] (In the formula, Pt is the transmit power, Gt is the antenna gain, σ is the target radar cross-section, R is the effective range, Lsys is the system loss, and SEO is the electronic equipment failure threshold.)

[0032] By working in tandem with dual frequency bands, it can cover the multi-target jamming needs of both the engine ignition system (sensitive to the S-band) and the shipborne radar (sensitive to the L-band).

[0033] The intelligent coupled antenna system employs a horn antenna structure with an external frequency selective surface (FSS) at the antenna front end to suppress out-of-band harmonics.

[0034] Formula derivation:

[0035] Improvement in coupling efficiency:

[0036]

[0037] (Verified through HFSS simulation, the coupling efficiency of the composite antenna is 47% higher than that of the single-band antenna in the scenario where the metal shell is penetrated.) By integrating multi-band interference, intelligent coupling optimization, and environmental enhancement design, the marine high-power microwave denial-of-attack device solves the problem that the existing forced engine shutdown device for speedboats only targets the engine ignition system and cannot perform multi-mode interference on shipborne electronic equipment, navigation systems, etc., which leads to the problem of single interception mode, low efficiency and poor environmental adaptability.

[0038] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that implementing all or part of the above embodiments and making equivalent changes in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A marine high-power microwave denial-of-attack device, comprising a base plate, characterized in that, It also includes strike components; The strike assembly includes a frequency selection assembly plate, an L-band strike component, an S-band strike component, and an antenna radome. The frequency selection assembly plate is fixedly connected to the base plate and is located on one side of the base plate; the L-band striking component is disposed on one side of the frequency selection assembly plate. The S-band striking component is disposed on one side of the frequency selection assembly plate; the radome is fixedly connected to the base plate and is located on one side of the base plate.

2. The marine high-power microwave denial-of-attack device as described in claim 1, characterized in that, The L-band striking component includes two L-band horn antennas, an L-band high-power microwave source, and an L-band high-frequency signal transmission line. The two L-band horn antennas are fixedly connected to the frequency selection assembly plate and are located on one side of the frequency selection assembly plate. The L-band high-power microwave source is fixedly connected to the base plate and is located on one side of the base plate. The L-band high-frequency signal transmission line is connected to the L-band high-power microwave source and is also connected to the two L-band horn antennas and is located on one side of the L-band high-power microwave source.

3. A marine high-power microwave denial-of-attack device as described in claim 2, characterized in that, The S-band striking device includes multiple S-band horn antennas, an S-band high-power microwave source, and an S-band high-frequency signal transmission line. The multiple S-band horn antennas are fixedly connected to the frequency selection assembly plate and are located on one side of the frequency selection assembly plate. The S-band high-frequency signal transmission line is connected to the S-band high-power microwave source and is also connected to the multiple S-band horn antennas and is located on one side of the S-band high-power microwave source.

4. A marine high-power microwave denial-of-attack device as described in claim 3, characterized in that, The radome is made of polytetrafluoroethylene composite material with a transmittance of >90%.

5. A marine high-power microwave denial-of-attack device as described in claim 4, characterized in that, Both the L-band high-power microwave source and the S-band high-power microwave source use gallium nitride (GaN)-based solid-state microwave sources to generate high-power microwaves.

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