A wideband airspace radiation device and a wide airspace anti-unmanned system

Abstract

This invention provides a wideband airspace radiation device and a wideband anti-unmanned system. The wideband airspace radiation device includes a mounting plate; a first-band radiator is arranged at the center of the mounting surface to provide omnidirectional coverage of the first band; several parasitic elements are arranged circumferentially along the first-band radiator; the second-band radiator employs directional antenna elements, with at least two second-band radiators symmetrically arranged on both sides of the first-band radiator; wherein the parasitic elements are located between the first-band and second-band radiators, and the parasitic elements are used both to guide the electromagnetic field distribution of the first-band radiator and to reflect and guide the electromagnetic waves emitted by the second-band radiator; the several second-band radiators achieve omnidirectional coverage of the second band in a back-to-back configuration. The wideband airspace radiation device provided by this disclosure can eliminate the coverage blind spots of multi-band combined omnidirectional radiators, achieving effective protection of targets.

Description

Technical Field

[0001] This invention relates to the field of electromagnetic fields and microwave technology, and more specifically, to a wideband spatial radiation device and a wideband anti-unmanned system. Background Technology

[0002] With the development of drone technology, consumer drones have begun to enter the consumer market in large numbers. Due to their low cost, consumer drones are easily used as malicious tools to attack targets. Therefore, electronic jamming of consumer drones has become one of the important means of protecting targets. There are many portable anti-consumer drone devices on the market, mainly of two types: directional and omnidirectional. These two types of anti-drone devices have different usage environments and each has its own advantages and disadvantages. Directional anti-drone devices will not be discussed further here. Omnidirectional anti-drone devices are mainly used in anti-drone scenarios over large areas. Currently, most omnidirectional anti-drone devices use wide-bandwidth airspace radiation devices, which are simple combinations of vertical dipole omnidirectional radiators. This popular wide-bandwidth airspace radiation device does not consider the mutual influence between vertical dipoles of different bands, resulting in vertical dipole radiation pattern distortion (distortion direction is uncontrollable), creating interference blind spots during use, and making it difficult to reliably electronically jam drones and effectively protect targets. Furthermore, the above problems not only exist in the application of jamming drones, but also exist in the jamming of unmanned vehicles, unmanned ships, robotic dogs, and other unmanned equipment. Summary of the Invention

[0003] The present invention aims to solve at least one of the aforementioned technical problems existing in the prior art.

[0004] Therefore, the first aspect of the present invention provides a wide bandwidth spatial radiation device.

[0005] A second aspect of the present invention provides a wide-airspace anti-unmanned system.

[0006] The present invention provides a wideband spatial radiation device, comprising:

[0007] Mounting plate, having a mounting surface;

[0008] The first band radiator is arranged at the center of the assembly surface, and adopts a single-band omnidirectional radiator to provide omnidirectional coverage of the first band.

[0009] Parasitic oscillators are disposed on the assembly surface, and a plurality of parasitic oscillators are arranged circumferentially along the first band radiator;

[0010] The second band radiator is disposed on the assembly surface and adopts a directional antenna element. At least two second band radiators are arranged on both sides of the first band radiator with the central axis of the first band radiator as the axis of symmetry.

[0011] The parasitic oscillator is located between the first band radiator and the second band radiator. The parasitic oscillator is used to guide the electromagnetic field distribution of the first band radiator and also to reflect and guide the electromagnetic waves emitted by the second band radiator as a reflector to achieve azimuth wide beam directional radiation of the second band.

[0012] Several second-band radiators achieve omnidirectional coverage of the second band by being arranged back-to-back.

[0013] The wideband spatial radiation device according to the above-described technical solution of the present invention may further have the following additional technical features:

[0014] The above technical solution also includes:

[0015] The third band radiator is disposed on the assembly surface and is a directional radiator. At least two of the third band radiators are arranged on both sides of the first band radiator with the central axis of the first band radiator as the axis of symmetry and with the second band radiator at a first angle.

[0016] The parasitic oscillator is also used to reflect and guide the electromagnetic waves emitted by the third-band radiator to achieve azimuth wide-beam directional radiation in the third band.

[0017] Several of the aforementioned third-band radiators achieve omnidirectional coverage of the third band by being arranged back-to-back.

[0018] The above technical solution also includes:

[0019] The fourth band radiator is disposed on the assembly surface and is a directional radiator. At least two of the fourth band radiators are arranged on both sides of the first band radiator with the central axis of the first band radiator as the axis of symmetry and at a second angle to the second band radiator.

[0020] The parasitic oscillator is also used to reflect and guide the electromagnetic waves emitted by the fourth-band radiator to achieve azimuth wide-beam directional radiation in the fourth band.

[0021] Several of the aforementioned fourth-band radiators achieve omnidirectional coverage of the fourth band by being arranged back-to-back;

[0022] The first band, the second band, the third band, and the fourth band do not overlap.

[0023] In the above technical solution, each second-band radiator is driven by an independent excitation source;

[0024] And / or, each of the third-band radiators is driven by an independent excitation source;

[0025] And / or, each of the fourth-band radiators is driven by an independent excitation source.

[0026] In the above technical solution, the assembly surface is a reflective surface, and the second-band radiator, the third-band radiator and the fourth-band radiator achieve beam tilting through reflection from the reflective surface.

[0027] In the above technical solution, the single-band omnidirectional radiator is a broadband sleeve radiator;

[0028] The directional antenna unit adopts a binary reflective monopole radiator, a monopole slotted wire antenna, a Yagi antenna, or a planar log-periodic antenna.

[0029] In the above technical solution, the height of the parasitic oscillator is lower than that of the first band radiator and higher than that of the second band radiator.

[0030] In the above technical solution, at least four parasitic oscillators are uniformly arranged along the circumference of the first band radiator.

[0031] In the above technical solution, the mounting plate includes a metal reflector.

[0032] The present invention provides a wide-airspace anti-unmanned system, characterized in that it uses a wide-airspace radiation device as described in any of the above technical solutions to achieve electronic interference against the target unmanned equipment.

[0033] In summary, due to the adoption of the above-mentioned technical features, the beneficial effects of the present invention are:

[0034] The wideband spatial radiation device disclosed herein can eliminate coverage blind spots of multi-band combined omnidirectional radiators, achieving effective protection of targets. Specifically, the radiator design allows for omnidirectional coverage in at least two bands while maintaining non-interference between the bands. This invention allows each band's radiator to achieve broadband omnidirectional coverage through clever layout and shared components while maintaining its specific function. The parasitic oscillator, as a shared component, not only solves the low-elevation coverage problem but also effectively suppresses the influence on other band radiators by adjusting the electromagnetic field structure, achieving broadband omnidirectional coverage and isolation between bands. The back-to-back design of the second to fourth bands and the use of independent excitation sources further enhance the flexibility and efficiency of coverage. The overall design considers beam directionality and coverage range, as well as the mutual influence and cooperative operation between different bands. This wideband spatial radiation device design can provide a wide range of services in communication systems, especially in situations requiring multi-directional, multi-band coverage.

[0035] Additional aspects and advantages of the invention will become apparent in the following description or may be learned by practice of the invention. Attached Figure Description

[0036] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0037] Figure 1 This is a schematic diagram of the structure of a wideband spatial radiation device according to an embodiment of the present invention;

[0038] Figure 2 This is a typical radiation pattern (horizontal plane) of the first band in a wide bandwidth spatial radiation device according to an embodiment of the present invention.

[0039] Figure 3 This is a typical radiation pattern (elevation plane) of the first band in a wideband spatial radiation device according to an embodiment of the present invention.

[0040] Figure 4 This is a typical radiation pattern (horizontal plane) of the second band in a wide bandwidth spatial radiation device according to an embodiment of the present invention.

[0041] Figure 5 This is a typical radiation pattern (elevation plane) of the second band in a wide bandwidth spatial radiation device according to an embodiment of the present invention.

[0042] Figure 6 This is a typical radiation pattern (horizontal plane) of the third band in a wide bandwidth spatial radiation device according to an embodiment of the present invention.

[0043] Figure 7 This is a typical radiation pattern (elevation plane) of the third band in a wide bandwidth spatial radiation device according to an embodiment of the present invention.

[0044] Figure 8 This is a typical radiation pattern (horizontal plane) of the fourth band in a wide bandwidth spatial radiation device according to an embodiment of the present invention.

[0045] Figure 9 This is a typical radiation pattern (elevation plane) of the fourth band in a wide bandwidth spatial radiation device according to an embodiment of the present invention.

[0046] in, Figures 1 to 9 The correspondence between the reference numerals and component names in the attached drawings is as follows:

[0047] 1. First-band radiator; 2. Second-band radiator; 3. Third-band radiator; 4. Fourth-band radiator; 5. Parasitic oscillator; 6. Mounting plate. Detailed Implementation

[0048] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0049] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and therefore the scope of protection of the invention is not limited to the specific embodiments disclosed below.

[0050] The following reference Figures 1 to 9 This describes a wideband spatial radiation device provided according to some embodiments of the present invention.

[0051] Some embodiments of this application provide a wideband spatial radiation device.

[0052] like Figure 1 As shown, the first embodiment of the present invention proposes a wideband spatial radiation device capable of covering multiple frequency bands and achieving omnidirectional radiation. This radiator is particularly suitable for applications requiring signal coverage and interference across multiple frequency ranges, such as wideband anti-unmanned systems. The design of this radiator allows for omnidirectional coverage across different frequency bands while maintaining non-interference between the various bands.

[0053] exist Figure 1 In the embodiment shown, the wideband spatial radiation device includes a mounting plate 6, a first-band radiator 1, a parasitic oscillator 5, a second-band radiator 2, a third-band radiator 3, and a fourth-band radiator 4.

[0054] Mounting plate 6 is the basic structure of the radiator, having a mounting surface for fixing and supporting the various components of the radiator. The mounting surface can be planar or curved to accommodate different radiation modes and coverage areas. In one specific embodiment, mounting plate 6 is preferably a metal reflector with a reflective mounting surface, used to achieve beam tilting of the second-band radiator 2, the third-band radiator 3, and the fourth-band radiator 4, thereby enhancing the radiation effect and improving radiation efficiency.

[0055] The first-band radiator 1 is positioned at the center of the assembly surface and employs a single-band omnidirectional radiator to provide omnidirectional coverage of the first band. This radiator can be a broadband sleeve radiator to achieve broadband coverage. The sleeve radiator design enables it to provide a stable radiation pattern over a wide frequency range.

[0056] Parasitic oscillators 5 are disposed on the assembly surface, with several parasitic oscillators 5 arranged circumferentially around the first-band radiator 1. Specifically, the height of the parasitic oscillators 5 is lower than that of the first-band radiator 1 and higher than that of the second-band radiator 2. This design helps the parasitic oscillators 5 to reflect and guide the electromagnetic waves emitted by the second-band radiator 2 while simultaneously guiding the electromagnetic field distribution of the first-band radiator 1. In one specific embodiment, multiple parasitic oscillators 5 are uniformly arranged circumferentially around the first-band radiator 1 to achieve a uniform radiation effect. Figure 1 In the embodiment shown, there are four parasitic oscillators 5. It can be understood that the number of parasitic oscillators 5 can also be 2, 3, 5 or more. Generally, in order to ensure that the parasitic oscillators 5 have good isolation and reflection effects, the number of parasitic oscillators 5 is not less than four.

[0057] The second-band radiator 2 is disposed on the assembly surface and adopts a directional antenna element. At least two second-band radiators 2 are arranged on both sides of the first-band radiator 1 with the central axis of the first-band radiator 1 as the axis of symmetry. The number of second-band radiators 2 is generally even. When the number of second-band radiators 2 is odd, they should be evenly spaced along the circumference of the assembly surface. Based on the configuration of this disclosure, omnidirectional coverage of the second band can be achieved by using two second-band radiators 2. Specifically, the two second-band radiators 2 achieve omnidirectional coverage of the second band by being arranged back-to-back. Preferably, each second-band radiator 2 can be driven by an independent excitation source to achieve precise control and adjustment.

[0058] The parasitic oscillator 5 is located between the first band radiator 1 and the second band radiator 2. The parasitic oscillator 5 is used to guide the electromagnetic field distribution of the first band radiator 1, and also to reflect and guide the electromagnetic waves emitted by the second band radiator 2 as a reflecting oscillator to achieve azimuth wide beam directional radiation of the second band.

[0059] Based on the arrangement of the second-band radiator 2, the third-band radiator 3 and the fourth-band radiator 4 are also arranged on the assembly surface.

[0060] Specifically, in Figure 1 In the illustrated embodiment, the third-band radiator 3 is disposed on the assembly surface and is a directional radiator. Two third-band radiators 3 are arranged on either side of the first-band radiator 1, with the central axis of the first-band radiator 1 as the axis of symmetry and forming a first angle with the second-band radiator 2. The two third-band radiators 3 achieve omnidirectional coverage of the third band by being positioned back-to-back. The parasitic oscillator 5 is also used to reflect and guide the electromagnetic waves emitted by the third-band radiators 3 to achieve azimuth-wide beam directional radiation of the third band. Similarly, the parasitic oscillator 5 is located between the first-band radiator 1 and the third-band radiator 3. Preferably, each third-band radiator 3 can be driven by an independent excitation source to achieve precise control and adjustment.

[0061] The fourth-band radiator 4 is mounted on the assembly surface and is a directional radiator. Two fourth-band radiators 4 are arranged on either side of the first-band radiator 1, with the central axis of the first-band radiator 1 as the axis of symmetry and forming a second angle with the second-band radiator 2. The two fourth-band radiators 4 achieve omnidirectional coverage of the fourth band by being positioned back-to-back. The parasitic oscillator 5 is also used to reflect and guide the electromagnetic waves emitted by the fourth-band radiators 4 to achieve azimuth-wide beam directional radiation of the fourth band. Similarly, the parasitic oscillator 5 is located between the first-band radiator 1 and the fourth-band radiator 4. Preferably, each fourth-band radiator 4 can be driven by an independent excitation source to achieve precise control and adjustment.

[0062] It is understandable that the third-band radiator 3 and the fourth-band radiator 4 are set up in the same way as the second-band radiator 2, with the main difference being the different bands and specific locations.

[0063] It should be noted that this disclosure is not limited to the above four-band configuration method. Any configuration with no less than two bands can be configured. That is to say, the third band radiator 3 and the fourth band radiator 4 can be omitted, or other band radiators can be added on the basis of setting the third band radiator 3 and the fourth band radiator 4. The bands emitted by each type of band radiator should not overlap.

[0064] In one specific embodiment, the first, second, third, and fourth bands correspond to the P-band, L-band, S-band, and C-band, respectively. The mutual coupling effect between the four band radiators is negligible, and omnidirectional seamless coverage across the entire band is achieved through radiator-independent source excitation.

[0065] exist Figure 1 In the illustrated embodiment, the single-band omnidirectional radiator is a broadband sleeve radiator; the directional antenna unit is a binary reflector monopole radiator. In addition, the directional antenna unit can also be a monopole slotted wire antenna, a Yagi antenna, or a planar log-periodic antenna.

[0066] In this disclosure, the operation mode of the wideband spatial radiation device involves the coordinated operation of multiple bands to achieve omnidirectional radiation and interference. The following are the operating modes and coordination methods of each band.

[0067] like Figure 2 and Figure 3As shown, the first-band radiator 1, acting as an omnidirectional radiator, provides a stable radiation mode, covering the frequency range of the first band. The radiator's design enables it to provide uniform radiation intensity across the omnidirectional range, laying the foundation for directional radiation in subsequent bands. It solves the low-elevation coverage problem and suppresses the influence of other band radiators through the traction of uniformly distributed parasitic oscillators 5, achieving omnidirectional coverage (azimuth) of the first band.

[0068] like Figure 4 and Figure 5 As shown, the second-band radiator 2 employs a directional antenna element. At least two radiators are arranged symmetrically around the central axis of the first-band radiator 1 to achieve omnidirectional coverage of the second band. Each radiator is driven by an independent excitation source for precise control and adjustment. Through a back-to-back configuration, the second-band radiator 2 achieves omnidirectional coverage while maintaining the stability of the radiation pattern. The second-band radiator 2 achieves azimuth wide-beam directional radiation through a reflecting dipole (parasitic dipole 5), and further utilizes the reflection from the mounting plate 6 to achieve beam tilting. The two second-band radiators 2, arranged back-to-back and excited by two independent excitation sources, achieve combined omnidirectional coverage of the second band.

[0069] like Figure 6 and Figure 7 As shown, the third-band radiator 3 also employs a directional radiator. At least two radiators are arranged with the central axis of the first-band radiator 1 as the axis of symmetry and at a first angle to the second-band radiator 2, achieving omnidirectional coverage of the third band. The parasitic oscillator 5 reflects and guides the electromagnetic waves emitted by the third-band radiator 3, achieving directional wide-beam radiation. Specifically, the third-band radiator 3 is a binary reflector-type monopole radiator with a wide beam in azimuth and an upward-curving beam in elevation (achieved through the mounting plate 6). The two third-band radiators 3, arranged back-to-back and excited by two independent excitation sources, achieve omnidirectional combined coverage of the third band.

[0070] like Figure 8 and Figure 9 As shown, the fourth-band radiator 4 also employs a directional radiator. At least two radiators are arranged with the central axis of the first-band radiator 1 as the axis of symmetry and at a second angle to the second-band radiator 2, achieving omnidirectional coverage of the fourth band. The parasitic oscillator 5 reflects and guides the electromagnetic waves emitted by the fourth-band radiator 4, achieving directional wide-beam radiation. Specifically, the fourth-band radiator 4 is a binary reflector-type monopole radiator with a wide beam in azimuth and an upward-curving beam in elevation (achieved through the mounting plate 6). The two fourth-band radiators 4, arranged back-to-back and excited by two independent excitation sources, achieve omnidirectional combined coverage of the fourth band.

[0071] Other embodiments of this invention propose a wide-bandwidth anti-unmanned system, employing a wide-bandwidth radiating device as described in any of the above embodiments to achieve electronic interference against target unmanned equipment. The wide-bandwidth radiating device, by providing omnidirectional radiation across multiple bands, can effectively interfere with the communication, navigation, and control systems of target unmanned equipment, typically referring to drones, unmanned vehicles, unmanned ships, unmanned surface vessels, or robotic dogs entering a critical area. By covering multiple bands, the radiating device can interfere with multiple critical systems of the unmanned equipment, thereby achieving effective electronic interference. In the wide-bandwidth anti-unmanned system, the wide-bandwidth radiating device can be deployed in critical areas to provide continuous electronic interference. Each band of the radiating device can be independently controlled to provide customized interference for different unmanned equipment systems. By adjusting the radiation mode and intensity of the radiator, precise interference against unmanned equipment can be achieved.

[0072] In this specification, the illustrative expressions of the terms used do not necessarily refer to the same embodiments or examples. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0073] Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this invention shall be included within the scope of protection of this invention.

Claims

1. A wideband spatial radiation device, characterized in that, include: Mounting plate, having a mounting surface; The first band radiator is arranged at the center of the assembly surface, and adopts a single-band omnidirectional radiator to provide omnidirectional coverage of the first band. Parasitic oscillators are disposed on the assembly surface, and a plurality of parasitic oscillators are arranged circumferentially along the first band radiator; The second band radiator is disposed on the assembly surface and adopts a directional antenna element. At least two second band radiators are arranged on both sides of the first band radiator with the central axis of the first band radiator as the axis of symmetry. The parasitic oscillator is located between the first band radiator and the second band radiator. The parasitic oscillator is used to guide the electromagnetic field distribution of the first band radiator and also to reflect and guide the electromagnetic waves emitted by the second band radiator as a reflector to achieve azimuth wide beam directional radiation of the second band. The third-band radiator is disposed on the assembly surface and is a directional radiator. At least two of the third-band radiators are arranged on both sides of the first-band radiator with the central axis of the first-band radiator as the axis of symmetry and with the second-band radiator at a first angle. The parasitic oscillator is also used to reflect and guide the electromagnetic waves emitted by the third-band radiator to achieve azimuth wide-beam directional radiation of the third band. The fourth-band radiator is disposed on the assembly surface and is a directional radiator. At least two of the fourth-band radiators are arranged on both sides of the first-band radiator with the central axis of the first-band radiator as the axis of symmetry and with the second-band radiator at a second angle. The parasitic oscillator is also used to reflect and guide the electromagnetic waves emitted by the fourth-band radiator to achieve azimuth wide-beam directional radiation of the fourth band. A plurality of second-band radiators achieve omnidirectional coverage of the second band by means of a back-to-back arrangement; a plurality of third-band radiators achieve omnidirectional coverage of the third band by means of a back-to-back arrangement; a plurality of fourth-band radiators achieve omnidirectional coverage of the fourth band by means of a back-to-back arrangement. The first band, the second band, the third band, and the fourth band do not overlap; The assembly surface is a reflective surface, and the second, third, and fourth band radiators achieve beam tilting through reflection from the reflective surface.

2. The wideband spatial radiation device according to claim 1, characterized in that, Each second-band radiator is driven by an independent excitation source; And / or, each of the third-band radiators is driven by an independent excitation source; And / or, each of the fourth-band radiators is driven by an independent excitation source.

3. The wideband spatial radiation device according to claim 1, characterized in that, The single-band omnidirectional radiator is a broadband sleeve radiator. The directional antenna unit adopts a binary reflective monopole radiator, a monopole slotted wire antenna, a Yagi antenna, or a planar log-periodic antenna.

4. The wideband spatial radiation device according to claim 1, characterized in that, The height of the parasitic oscillator is lower than that of the first-band radiator and higher than that of the second-band radiator.

5. The wideband spatial radiation device according to claim 1, characterized in that, At least four of the parasitic oscillators are uniformly arranged circumferentially along the first band radiator.

6. The wideband spatial radiation device according to claim 1, characterized in that, The mounting plate includes a metal reflector.

7. A wide-airspace anti-unmanned system, characterized in that, Electronic interference can be achieved against unmanned target equipment using a wide-bandwidth airspace radiation device as described in any one of claims 1 to 6.

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