Broadband wide-airspace radiation device and wide-airspace anti-unmanned system

Abstract

The invention provides a wide-bandwidth airspace radiation device and a wide-bandwidth airspace anti-unmanned system. The wide-bandwidth airspace radiation device comprises a mounting plate; the first wave band radiator is arranged at the central position of the assembly surface and is used for providing an omnidirectional coverage radiation mode of a first wave band; the plurality of parasitic oscillators are arranged along the circumferential direction of the first wave band radiator; the second wave band radiators adopt directional antenna units, and the at least two second wave band radiators are symmetrically arranged on the two sides of the first wave band radiator; wherein the parasitic oscillator is located between the first wave band radiator and the second wave band radiator, and the parasitic oscillator is not only used for pulling the electromagnetic field distribution of the first wave band radiator, but also used for reflecting and guiding electromagnetic waves emitted by the second wave band radiator; and the plurality of second wave band radiators realize omnidirectional coverage of a second wave band in a back-to-back manner. According to the broadband airspace radiation device provided by the invention, the coverage blind area of the multiband combined omnidirectional radiator can be eliminated, and effective protection of a target is realized.

Description

Technical Field

[0001] The present invention relates to the field of electromagnetic field and microwave technology, and in particular to a wide-bandwidth airspace radiation device and a wide-airspace anti-unmanned system. Background Art

[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 manipulation tools to attack targets. Using electronic interference to counter consumer drones has become one of the important means of protecting targets. There are many portable anti-consumer drone equipment on the market, mainly directional anti-drone equipment and omnidirectional anti-drone equipment. These two types of anti-drone equipment have different usage environments and each has its own advantages and disadvantages. Directional anti-drone equipment will not be discussed here. Omnidirectional anti-drone equipment is mainly used in anti-drone scenarios in large areas. At present, the wide-bandwidth airspace radiator used by omnidirectional anti-drone equipment is mostly a simple combination of vertical oscillator omnidirectional radiators. This popular wide-bandwidth airspace radiator does not take into account the mutual influence between vertical oscillators in different bands, and there is a distortion of the vertical oscillator radiation pattern (the distortion direction is uncontrolled). There is an interference blind spot during use, making it difficult to reliably perform electronic interference on drones, thereby effectively protecting targets. In addition, the above problems not only exist in the application of jamming drones, but also in the jamming of unmanned equipment such as unmanned vehicles, unmanned ships, and robot dogs. Summary of the invention

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

[0004] To this end, a 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 wide bandwidth spatial radiation device, comprising:

[0007] A mounting plate having a mounting surface;

[0008] A first band radiator is arranged at the center of the mounting surface, adopts a single-band omnidirectional radiator and is used to provide a radiation pattern with omnidirectional coverage of the first band;

[0009] A parasitic vibrator is disposed on the assembly surface, and a plurality of parasitic vibrators are arranged along the circumference of the first band radiator;

[0010] A second band radiator is arranged on the mounting surface and adopts a directional antenna unit, and at least two of the second band radiators are arranged on both sides of the first band radiator with the central axis of the first band radiator as the symmetry axis;

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

[0012] A plurality of the second-band radiators are arranged back-to-back to achieve omnidirectional coverage of the second band.

[0013] The wide bandwidth spatial radiation device according to the above technical solution of the present invention may also have the following additional technical features:

[0014] The above technical solution also includes:

[0015] A third-band radiator is disposed on the mounting 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 at a first angle with the second-band radiator;

[0016] The parasitic vibrator 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] A plurality of the third-band radiators are arranged back-to-back to achieve omnidirectional coverage of the third band.

[0018] The above technical solution also includes:

[0019] A fourth-band radiator is disposed on the mounting 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 with the second-band radiator;

[0020] The parasitic vibrator 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] A plurality of the fourth-band radiators are arranged back-to-back to achieve omnidirectional coverage of the fourth band;

[0022] The first waveband, the second waveband, the third waveband and the fourth waveband do not overlap with each other.

[0023] In the above technical solution, each of the second waveband radiators 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 upward bending through reflection by the reflective surface.

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

[0028] The directional antenna unit adopts a binary reflection type monopole radiator, a monopole slot antenna, a Yagi antenna or a planar logarithmic 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 radiators along the first wavelength band are evenly arranged in the circumferential direction.

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

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

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

[0034] The wide-bandwidth airspace radiation device provided by the present disclosure can eliminate the coverage blind spots of the multi-band combined omnidirectional radiator and realize effective protection of the target. Specifically, the design of the radiator allows omnidirectional coverage on at least two bands while maintaining non-interference between the bands. The present invention allows the radiator of each band to achieve broadband omnidirectional coverage through clever layout and shared components while maintaining its specific functions. The parasitic oscillator as a shared component not only solves the problem of low elevation angle coverage, but also effectively suppresses the impact on radiators of other bands by adjusting the electromagnetic field structure, thereby realizing 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 takes into account the directionality and coverage of the beam, as well as the mutual influence and collaborative work between different bands. The design of this wide-bandwidth airspace radiation device can provide a wide range of services in communication systems, especially in situations where multi-directional and multi-band coverage is required.

[0035] Additional aspects and advantages of the present invention will become apparent in the following description or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0037] Figure 1 is a schematic structural diagram of a wide bandwidth spatial radiation device according to an embodiment of the present invention;

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

[0040] Figure 4 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 It 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 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 It is a typical radiation pattern (in elevation plane) of the third band in a wide bandwidth spatial radiation device according to an embodiment of the present invention;

[0044] Figure 8 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] Fig. 9 It 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 corresponding relationship between the reference numerals and the component names 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 DESCRIPTION

[0048] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0049] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0050] Refer to the following Figures 1 to 9 To describe the wide bandwidth spatial domain radiation device provided according to some embodiments of the present invention.

[0051] Some embodiments of the present application provide a wide bandwidth spatial radiation device.

[0052] like Figure 1 As shown, the first embodiment of the present invention proposes a wide bandwidth airspace radiator, which can cover multiple bands and achieve omnidirectional radiation. The radiator is particularly suitable for applications that require signal coverage and interference in multiple frequency ranges, such as wide airspace anti-unmanned systems. The design of the radiator allows omnidirectional coverage on different bands while maintaining non-interference between the bands.

[0053] exist Figure 1 In the illustrated embodiment, the wide bandwidth spatial radiation device includes a mounting plate 6 , a first band radiator 1 , a parasitic vibrator 5 , a second band radiator 2 , a third band radiator 3 and a fourth band radiator 4 .

[0054] The mounting plate 6 is the basic structure of the radiator, and has an assembly surface for fixing and supporting the various components of the radiator. The assembly surface can be flat or curved to adapt to different radiation modes and coverage ranges. In a specific embodiment, the mounting plate 6 is preferably a metal reflector, and the assembly surface is a reflective surface, which is used to achieve the upward warping of the beams of the second band radiator 2, the third band radiator 3 and the fourth band radiator 4 to enhance the radiation effect and improve the radiation efficiency.

[0055] The first band radiator 1 is arranged at the center of the mounting surface and adopts a single-band omnidirectional radiator to provide an omnidirectional radiation pattern of the first band. The radiator can adopt a broadband sleeve radiator to achieve broadband coverage. The design of the sleeve radiator enables it to provide a stable radiation pattern in a wide frequency range.

[0056] The parasitic vibrator 5 is disposed on the assembly surface, and a plurality of parasitic vibrators 5 are arranged along the circumference of the first band radiator 1. Specifically, the height of the parasitic vibrator 5 is lower than the first band radiator 1 and higher than the second band radiator 2. Such a design helps the parasitic vibrator 5 to reflect and guide the electromagnetic waves emitted by the second band radiator 2 while pulling the electromagnetic field distribution of the first band radiator 1. In a specific embodiment, a plurality of parasitic vibrators 5 are evenly arranged along the circumference of the first band radiator 1 to achieve a uniform radiation effect. Figure 1 In the illustrated embodiment, the number of parasitic vibrators 5 is four. It is understandable that the number of parasitic vibrators 5 may also be 2, 3, 5 or more. Generally, to ensure that the parasitic vibrators 5 have better isolation and reflection effects, the number of parasitic vibrators 5 is not less than four.

[0057] The second band radiator 2 is arranged on the assembly surface, and a directional antenna unit is used. At least two of the 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 the second band radiators 2 is generally an even number, and when the second band radiator 2 is an odd number, it should be evenly spaced along the circumference of the assembly surface. Based on the configuration disclosed in the present invention, the use of two second band radiators 2 can achieve omnidirectional coverage of the second band. Specifically, the two second band radiators 2 achieve omnidirectional coverage of the second band in a back-to-back form. Preferably, each second band radiator 2 can be driven by an independent excitation source to achieve precise control and adjustment.

[0058] The parasitic vibrator 5 is located between the first band radiator 1 and the second band radiator 2. The parasitic vibrator 5 is used to pull the electromagnetic field distribution of the first band radiator 1, and is also used as a reflection vibrator to reflect and guide the electromagnetic waves emitted by the second band radiator 2 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 mounting surface.

[0060] Specifically, in Figure 1 In the illustrated embodiment, the third band radiator 3 is disposed on the assembly surface and adopts a directional radiator. The two third band radiators 3 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 and at a first angle to the second band radiator 2. The two third band radiators 3 are arranged back to back to achieve omnidirectional coverage of the third band. The parasitic vibrator 5 is also used to reflect and guide the electromagnetic waves emitted by the third band radiator 3 to achieve azimuth wide beam directional radiation of the third band. Similarly, the parasitic vibrator 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 arranged on the assembly surface and adopts a directional radiator. The two fourth-band radiators 4 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 and at a second angle with the second-band radiator 2. The two fourth-band radiators 4 achieve omnidirectional coverage of the fourth band in a back-to-back manner. The parasitic vibrator 5 is also used to reflect and guide the electromagnetic waves emitted by the fourth-band radiator 4 to achieve azimuth wide-beam directional radiation of the fourth band. Similarly, the parasitic vibrator 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 can be understood that the third band radiator 3 and the fourth band radiator 4 are arranged in a substantially similar manner to the second band radiator 2 , and the difference mainly lies in the difference in bands and specific positions.

[0063] It should be noted that the present disclosure is not limited to the above-mentioned four-band configuration method, and any configuration of not less than two bands can be configured, that is, 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 with each other.

[0064] In a specific embodiment, the first band, the second band, the third band and the fourth band correspond to the P band, the L band, the S band and the C band respectively. The mutual coupling effect between the four band radiators can be ignored, and full-band azimuth and omnidirectional seamless coverage is achieved through the excitation of the radiator unrelated source.

[0065] exist Figure 1 In the illustrated embodiment, the single-band omnidirectional radiator adopts a broadband sleeve radiator; the directional antenna unit adopts a binary reflection monopole radiator. In addition, the directional antenna unit may also adopt a monopole slot antenna, a Yagi antenna or a planar log-periodic antenna.

[0066] In the present disclosure, the working mode of the wide bandwidth spatial radiation device involves the coordinated work of multiple bands to achieve omnidirectional radiation and interference. The following are the working modes and coordination methods of each band.

[0067] like Figure 2 and Figure 3As shown, the first band radiator 1 is an omnidirectional radiator, providing a stable radiation pattern and covering the frequency range of the first band. The design of the radiator enables it to provide uniform radiation intensity in the omnidirectional range, providing a basis for directional radiation in subsequent bands. It solves the low elevation angle coverage problem and suppresses the influence of radiators in other bands by traction of evenly distributed parasitic oscillators 5, thus achieving omnidirectional coverage (azimuth) of the first band.

[0068] like Figure 4 and Figure 5 As shown, the second-band radiator 2 adopts a directional antenna unit, and at least two radiators are arranged with the central axis of the first-band radiator 1 as the axis of symmetry to achieve omnidirectional coverage of the second band. Each radiator is driven by an independent excitation source to achieve precise control and adjustment. Through the back-to-back form, the second-band radiator 2 can achieve omnidirectional coverage while maintaining the stability of the radiation pattern. The second-band radiator 2 realizes azimuth wide-beam directional radiation through a reflecting oscillator (parasitic oscillator 5), and then uses the reflection of the mounting plate 6 to achieve beam upturn. Two pairs of second-band radiators 2 achieve omnidirectional combined coverage of the second band through the back-to-back form and the excitation of two sets of unrelated excitation sources.

[0069] like Figure 6 and Figure 7 As shown, the third-band radiator 3 also adopts a directional radiator, and 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 with the second-band radiator 2 to achieve omnidirectional coverage of the third band. At this time, the function of the parasitic oscillator 5 is to reflect and guide the electromagnetic waves emitted by the third-band radiator 3 to achieve directional radiation with a wide beam in azimuth. Specifically, the third-band radiator 3 is a binary reflection-type monopole radiator with a wide beam in azimuth and an upturned beam in elevation (realized by the mounting plate 6). Two pairs of third-band radiators 3 achieve omnidirectional combined coverage of the third band through back-to-back form and excitation of two sets of unrelated excitation sources.

[0070] like Figure 8 and Fig. 9 As shown, the fourth-band radiator 4 also adopts a directional radiator, and 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 to achieve omnidirectional coverage of the fourth band. At this time, the function of the parasitic vibrator 5 is to reflect and guide the electromagnetic waves emitted by the fourth-band radiator 4 to achieve directional radiation with a wide beam in azimuth. Specifically, the fourth-band radiator 4 is a binary reflection-type monopole radiator with a wide beam in azimuth and an upturned beam in elevation (realized by the mounting plate 6). Two pairs of fourth-band radiators 4 achieve omnidirectional combined coverage of the fourth band through back-to-back form and excitation of two sets of unrelated excitation sources.

[0071] Other embodiments of the present invention propose a wide airspace anti-unmanned system, which uses a wide bandwidth airspace radiation device as described in any of the above embodiments to achieve electronic interference on target unmanned equipment. The wide bandwidth airspace radiation device can effectively interfere with the communication, navigation and control systems of the target unmanned equipment by providing omnidirectional radiation on multiple bands. The target unmanned equipment usually refers to drones, unmanned vehicles, unmanned ships, unmanned boats or robot dogs entering the key area. By covering multiple bands, the radiation device can interfere with multiple key systems of unmanned equipment, thereby achieving effective electronic interference. In the wide airspace anti-unmanned system, the wide bandwidth airspace radiation device can be deployed in key areas to provide continuous electronic interference. The various bands of the radiation device can be independently controlled to perform customized interference on different unmanned equipment systems. By adjusting the radiation pattern and intensity of the radiator, precise interference with unmanned equipment can be achieved.

[0072] In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0073] Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A wide bandwidth spatial radiation device, characterized in that: include: A mounting plate having a mounting surface; A first band radiator is arranged at the center of the mounting surface, adopts a single-band omnidirectional radiator and is used to provide a radiation pattern with omnidirectional coverage of the first band; A parasitic vibrator is disposed on the assembly surface, and a plurality of parasitic vibrators are arranged along the circumference of the first band radiator; A second band radiator is arranged on the mounting surface and adopts a directional antenna unit, and at least two of the second band radiators are arranged on both sides of the first band radiator with the central axis of the first band radiator as the symmetry axis; The parasitic vibrator is located between the first band radiator and the second band radiator, and is used to pull the electromagnetic field distribution of the first band radiator, and is also used as a reflection vibrator to reflect and guide the electromagnetic waves emitted by the second band radiator to achieve azimuth wide beam directional radiation of the second band; A plurality of the second-band radiators are arranged back-to-back to achieve omnidirectional coverage of the second band.

2. The wide bandwidth spatial radiation device according to claim 1, characterized in that: Also includes: A third-band radiator is disposed on the mounting 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 at a first angle with the second-band radiator; The parasitic vibrator 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; A plurality of the third-band radiators are arranged back-to-back to achieve omnidirectional coverage of the third band.

3. The wide bandwidth spatial radiation device according to claim 2, characterized in that: Also includes: A fourth-band radiator is disposed on the mounting 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 with the second-band radiator; The parasitic vibrator 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; A plurality of the fourth-band radiators are arranged back-to-back to achieve omnidirectional coverage of the fourth band; The first waveband, the second waveband, the third waveband and the fourth waveband do not overlap with each other.

4. The wide bandwidth spatial radiation device according to claim 3, characterized in that: Each of the second-band radiators 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.

5. The wide bandwidth spatial radiation device according to claim 3, characterized in that: The assembly surface is a reflective surface, and the second waveband radiator, the third waveband radiator and the fourth waveband radiator realize beam warping through reflection by the reflective surface.

6. The wide bandwidth spatial radiation device according to claim 3, characterized in that: The single-band omnidirectional radiator adopts a broadband sleeve radiator; The directional antenna unit adopts a binary reflection type monopole radiator, a monopole slot antenna, a Yagi antenna or a planar logarithmic periodic antenna.

7. The wide bandwidth spatial radiation device according to claim 1, characterized in that: The height of the parasitic oscillator is lower than the first band radiator and higher than the second band radiator.

8. The wide bandwidth spatial radiation device according to claim 1, characterized in that: At least four radiators are evenly arranged in the circumferential direction of the first wavelength band.

9. The wide bandwidth spatial radiation device according to claim 1, characterized in that: The mounting plate includes a metal reflective plate.

10. A wide airspace anti-unmanned system, characterized in that: The wide bandwidth airspace radiation device as described in any one of claims 1 to 9 is used to achieve electronic interference on target unmanned equipment.

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