Low-electromagnetic scattering appearance carrier based on quasi-hexagonal cross section

Abstract

The invention relates to a low electromagnetic scattering appearance carrier based on a quasi-hexagonal section, and relates to the field of low electromagnetic scattering design, the low electromagnetic scattering appearance carrier comprises a sharp corner part formed by two first straight lines, a parallel part formed by two second straight lines and a contraction part formed by two third straight lines, the first straight lines are connected with the second straight lines through first curves, and the second straight lines are connected with the contraction part through second curves. The first straight line and the second straight line are connected through a first curve, the second straight line and the third straight lines are connected through a second curve, the two third straight lines are connected through two third curves, and the two first straight lines, the first curve, the second straight line, the second curve, the third straight lines and the third curves enclose a hexagonal appearance and are symmetrical along a symmetry axis. And reference can be provided for the design of low-electromagnetic scattering aircrafts, low-electromagnetic scattering carriers, electromagnetic scattering test towers and the like.

Description

Technical Field

[0001] This invention relates to the field of low electromagnetic scattering design technology, and in particular to a low electromagnetic scattering shape carrier based on a quasi-hexagonal cross section. Background Technology

[0002] To ensure that the target exhibits low electromagnetic scattering characteristics within the angle of interest, a low electromagnetic scattering shape carrier based on a quasi-hexagonal cross-section is required. Summary of the Invention

[0003] (a) Technical problems to be solved The technical problem to be solved by the present invention is how to make the target have low scattering characteristics in the angular domain of interest.

[0004] (II) Technical Solution To address the aforementioned technical problems, this invention provides a low electromagnetic scattering shape carrier based on a hexagonal cross-section, comprising a pointed corner formed by two first straight lines, a parallel section formed by two second straight lines, and a constricted section formed by two third straight lines. The first and second straight lines are connected by a first curve, the second and third straight lines are connected by a second curve, and the two third straight lines are connected by two third curves. The two first straight lines, the first curve, the second straight line, the second curve, the third straight line, and the third curve form a hexagonal shape that is symmetrical along the axis of symmetry.

[0005] As a further explanation of the present invention, preferably, one end of the two first straight lines intersects and the other end is connected to the first curve, and the included angle between the two first straight lines is 20° to 90°.

[0006] As a further explanation of the present invention, preferably, the radii of the first curve, the second curve and the third curve are between 100 mm and 5000 mm.

[0007] As a further explanation of the present invention, preferably, the length of the outer carrier is between 0.5m and 20m, the width is between 0.2m and 15m, and the height is between 0.1m and 6m.

[0008] (III) Beneficial Effects The above-described technical solution of the present invention has the following advantages: This invention employs a hexagonal-like structure composed of multiple straight lines and curves. The straight edges of this structure better concentrate the scattering of incident electromagnetic waves and deflect them away from the angle of interest. Higher-order curves connect the straight edges to suppress cusp diffraction and traveling wave backscattering introduced by edge discontinuities within the angle of interest. This shape can serve as a reference for the design of low-electromagnetic-scattering aircraft, low-electromagnetic-scattering carriers, and electromagnetic scattering test towers. It offers advantages such as reliability, applicability, ease of promotion, and the potential for significant economic benefits. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the external shape of the present invention.

[0010] In the diagram: 1. First straight line; 2. First curve; 3. Second straight line; 4. Second curve; 5. Third straight line; 6. Third curve; 7. Axis of symmetry. Detailed Implementation

[0011] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0012] A low electromagnetic scattering shape carrier based on a hexagonal cross-section, such as Figure 1 As shown, the structure includes a pointed section formed by two first straight lines 1, a parallel section formed by two second straight lines 3, and a contracted section formed by two third straight lines 5. The first straight lines 1 and 3 are connected by a first curve 2, the second straight lines 3 and 5 are connected by a second curve 4, and the two third straight lines 5 are connected by two third curves 6. The first straight lines 1, 2, 3, 4, 5, and 6 form a hexagonal shape symmetrical about an axis of symmetry 7. By using curves to connect straight lines, intersections between lines are avoided to prevent the formation of sharp points, thereby introducing cusp diffraction and traveling wave backscattering within the region of interest.

[0013] like Figure 1 As shown, two first straight lines 1 intersect at one end and connect to the first curve 2 at the other end, with an included angle of 20° to 90°. According to electromagnetic scattering theory, the forward angle of the shape determines the low-scattering angular domain of the low-scattering carrier. Therefore, for specific RCS angular domain size requirements, selecting a suitable tip angle is extremely important. By designing a forward sharp angle of 20° to 90°, the range of the low-scattering angular domain is determined, ensuring that the shape exhibits low scattering in the angular domain of interest.

[0014] like Figure 1 As shown, the outer carrier can be made of materials such as metal or foam. The radii of the first curve 2, the second curve 4, and the third curve 6 are between 100mm and 5000mm. The length of the outer carrier is between 0.5m and 20m, the width is between 0.2m and 15m, and the height is between 0.1m and 6m.

[0015] This design reduces electromagnetic wave echoes and lowers the probability of detection (such as in aircraft scenarios), directly replacing the later maintenance costs of traditional absorbing coating solutions (absorbing coatings need to be replaced regularly, with annual maintenance costs of about 5% to 8% of the total cost of the carrier, while this solution achieves low scattering through structural optimization and has no coating maintenance costs), and the total life cycle cost is 20%-30% lower than that of traditional full-curve / absorbing coating solutions.

[0016] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A low electromagnetic scattering shape carrier based on a quasi-hexagonal cross-section, characterized in that: It includes a pointed part formed by two first straight lines (1), a parallel part formed by two second straight lines (3), and a contracted part formed by two third straight lines (5). The first straight line (1) and the second straight line (3) are connected by a first curve (2), the second straight line (3) and the third straight line (5) are connected by a second curve (4), and the two third straight lines (5) are connected by two third curves (6). The two first straight lines (1), the first curve (2), the second straight line (3), the second curve (4), the third straight line (5), and the third curve (6) form a hexagonal shape and are symmetrical along the axis of symmetry (7).

2. The low electromagnetic scattering shape carrier based on a quasi-hexagonal cross-section according to claim 1, characterized in that: Two first straight lines (1) intersect at one end and are connected to the first curve (2) at the other end. The angle between the two first straight lines (1) is 20° to 90°.

3. The low electromagnetic scattering shape carrier based on a quasi-hexagonal cross-section according to claim 2, characterized in that: The radii of the first curve (2), the second curve (4), and the third curve (6) are between 100mm and 5000mm.

4. The low electromagnetic scattering shape carrier based on a quasi-hexagonal cross-section according to claim 3, characterized in that: The length of the external carrier ranges from 0.5m to 20m, the width from 0.2m to 15m, and the height from 0.1m to 6m.

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