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Method for generating parameter of artificial micro structure

A technology of artificial microstructure and parameters, applied in the field of metamaterials, can solve problems such as low efficiency, and achieve the effect of reducing consumption and improving design efficiency

Active Publication Date: 2013-04-24
KUANG CHI INST OF ADVANCED TECH +1
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Problems solved by technology

[0007] The invention provides a method for efficiently generating artificial microstructure parameters of metamaterials, aiming at the low efficiency of the existing technology, which can only be manually designed.

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  • Method for generating parameter of artificial micro structure
  • Method for generating parameter of artificial micro structure

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Embodiment Construction

[0023] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0024] figure 2 , 3 It is the design flow chart of the present invention to the metamaterial artificial microstructure;

[0025] see figure 2 , 3 , figure 2 , 3 Shown is the method for generating the artificial microstructure of the metamaterial, the method comprising the following steps:

[0026] S1: Generate a mean and variance are μ t and Σ t The normal distribution function of , and in the normal distribution function, use the multivariate normal random number function to generate N parameter groups X 1 , X 2 ,...,X N , where μ t and Σ t The initial value of is preset, and t is the number of iterations;

[0027] In the first step, the mean μ 0 and variance Σ 0 Initialization, the assignment of the initial value is derived from experience. For example, the length of the metamaterial to be designed is L, the width is W, and the me...

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Abstract

The invention provides a method for generating parameters of an artificial micro structure, which comprises the following steps: S1, generating N parameter groups according to multivariate normal distribution shown by current mean values and variances; S2, respectively calculating the distances of N electromagnetic response functions and target electromagnetic response functions; S3, selecting the Nel parameters corresponding to the previous Nel minimum distances, and updating the means and the variances; and S4, judging whether cycle conditions are satisfied, if the cycle conditions are satisfied, returning to Step S1, and if the cycle conditions are not satisfied exiting the cycle. The invention provides an efficient method for generating the parameters of the artificial micro structure, multi-thread computation can be realized through a graphic processing unit GPU, and the efficiency of designing the parameters of the artificial micro structure can be increased fundamentally. The method is often used in the field of metamaterials.

Description

【Technical field】 [0001] The invention relates to the field of metamaterials, in particular to a method for generating artificial microstructure parameters. 【Background technique】 [0002] Metamaterial technology is a cutting-edge cross-technology, and the technical fields of its design include electromagnetic, microwave, terahertz, photonics, advanced engineering design system, communication, semiconductor and other fields. Its core idea is to use complex artificial microstructure design and processing to realize artificial "atoms" to respond to electromagnetic fields or sonar. Its core theory is anamorphic optics describing electromagnetic wave trajectories and metamaterial properties. One of the core difficulties of this technology is how to model and design thousands of different artificial microstructures and arrange them reasonably to form a metamaterial device with special functions. This has brought great difficulties to modeling, calculation, theoretical analysis,...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50
Inventor 刘若鹏季春霖何振明刘斌赵治亚
Owner KUANG CHI INST OF ADVANCED TECH
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