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Wideband coded metamaterial quick design method

A design method and metamaterial technology, applied in the direction of design optimization/simulation, calculation, genetic rules, etc., can solve the problems of reducing the design and practical efficiency of electromagnetic metamaterials, large computer resources and computing time, consumption, etc., to avoid large-scale Effects of simulation calculation, rapid design, and simple structure

Inactive Publication Date: 2018-02-16
AIR FORCE UNIV PLA
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Problems solved by technology

However, the design of specific phase-shift metamaterial structural units and code sequence design with broadband response requires the help of electromagnetic simulation software, which consumes huge computer resources and computing time, reducing the design and practical efficiency of electromagnetic metamaterials.

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  • Wideband coded metamaterial quick design method
  • Wideband coded metamaterial quick design method
  • Wideband coded metamaterial quick design method

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Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0025] refer to figure 1 , is the metamaterial unit structure with a lower Q value used in the embodiment of the present invention. This structure is a classic three-layer structure consisting of a metal backplane, a dielectric substrate and a surface metal patch. The surface metal patch in this embodiment The slice is a cross structure, figure 1 (a) shows the three-dimensional schematic diagram of the metamaterial structural unit and the front view of the su...

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Abstract

The invention discloses a wideband coded metamaterial quick design method, and relates to the technical field of novel artificial electromagnetic materials. According to the method, based on a relatively-low-Q-value metamaterial unit structure, through a nonlinear fitting method, on the premise of no large-scale electromagnetic simulation software calculation, description of a structure unit sizeand an electromagnetic response relationship is realized; and by virtue of an optimization algorithm, a metamaterial structure unit with wide-bandwidth uniform phase shift can be quickly designed, sothat calculation resources and calculation time are saved. Then, the arrangement of the structure unit and a coding sequence for coding a metamaterial are optimized through the optimization algorithm,so that a wide-bandwidth coded metamaterial with characteristics of abnormal reflection, focusing, wave beam control, RCS reduction and the like can be realized. Through two-stage optimization operation, the design of the coded metamaterial can be quickly realized; and the method has the characteristics of easy operation and easy realization, and is of important significance in the aspects of coded metamaterial engineering design and application.

Description

technical field [0001] The invention relates to the technical field of new artificial electromagnetic materials, in particular to a rapid design method for broadband coded metamaterials, which can be used for the engineering design and application of coded metamaterials, and the scope of application involves stealth, radar detection and electromagnetic scattering. Background technique [0002] Compared with traditional analog metamaterials, electromagnetic coding metamaterials simplify the design of units by means of digital coding, which can realize a simple and efficient way to regulate electromagnetic waves. The existing coded metamaterial, through the design and optimization of the structural unit of the metamaterial, uses its electromagnetic resonance characteristics to realize the regulation of the phase of the incident electromagnetic wave. Common coded metamaterials are 1-bit codes, the basic unit of which is a metamaterial structural unit with a reflection phase dif...

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Application Information

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IPC IPC(8): G06F17/50G06N3/12
CPCG06N3/126G06F30/20
Inventor 马华随赛屈绍波
Owner AIR FORCE UNIV PLA
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