Dual-band corner reflector and design method thereof
A corner reflector and dual-band technology, applied in the field of radar, can solve the problem that the corner reflector cannot meet the engineering application requirements with similar scattering characteristics
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Embodiment 1
[0031] Such as figure 1 As shown, a dual-band corner reflector provided by an embodiment of the present invention includes: three metal plates 101 and a frequency selective surface dielectric plate 102;
[0032] Any two of the three metal plates 101 are arranged perpendicular to each other to form a semi-elliptical concave structure, wherein the two metal plates perpendicular to each other have a common connecting edge, and the shared The lengths of the connected sides are equal;
[0033] The frequency selective surface dielectric plate 102 is respectively connected to the three metal plates.
[0034] In the embodiment of the present invention, the rigid structure formed by the arrangement of three metal plates perpendicular to each other can not only avoid displacement and strain of the dual-band corner reflector under the action of coincidence when the dual-band corner reflector is subjected to a strong impact, It can also minimize the attenuation of the RCS level, and con...
Embodiment 2
[0037] In an embodiment of the present invention, the shape of the frequency selective surface dielectric plate includes an equilateral triangle.
[0038] In the embodiment of the present invention, the shape of the frequency selective surface dielectric plate may be any polygon, for example, an isosceles right triangle, a square, a pentagon, or a rectangle. However, in order to better control the transmittance of electromagnetic waves at different frequencies, the optimum shape of the frequency selective surface dielectric plate is an equilateral triangle.
Embodiment 3
[0040] In an embodiment of the present invention, the distance from the intersection of the vertex of the frequency selective surface dielectric plate in the shape of an equilateral triangle and the shared connecting side to the intersection of the three metal plates, and the shared The ratio of the lengths of the connecting sides is a predetermined frequency selective surface dielectric plate size ratio factor.
[0041] In the embodiment of the present invention, when the shape of the frequency selective surface dielectric plate is an equilateral triangle, the three vertices of the frequency selective surface dielectric plate and the three shared connecting sides form three one-to-one corresponding intersection points, and the three intersection points to three The distance between the intersection points of two mutually perpendicular metal plates is equal.
[0042] It can be understood that the size ratio factor of the frequency selective surface dielectric plate determines ...
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