Deep neural network training method based on vectorgraphs for designing of metamaterial broadband polarization converters

Gao, Jiale, Feng, Chunjie, Wu, Xingyi, Wu, Yanghui, Zhu, Xiaobo, Sun, Daying, Yue, Yutao ORCID: 0000-0003-4532-0924 and Gu, Wenhua (2023) Deep neural network training method based on vectorgraphs for designing of metamaterial broadband polarization converters. SCIENTIFIC REPORTS, 13 (1). 5009-.

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Official URL: http://dx.doi.org/10.1038/s41598-023-32142-1

Abstract

In this work, we proposed a method of extracting feature parameters for deep neural network prediction based on the vectorgraph storage format, which can be applied to the design of electromagnetic metamaterials with sandwich structures. Compared to current methods of manually extracting feature parameters, this method can automatically and precisely extract the feature parameters of arbitrary two-dimensional surface patterns of the sandwich structure. The position and size of surface patterns can be freely defined, and the surface patterns can be easily scaled, rotated, translated, or transformed in other ways. Compared to the pixel graph feature extraction method, this method can adapt to very complex surface pattern design in a more efficient way. And the response band can be easily shifted by scaling the designed surface pattern. To illustrate and verify the method, a 7-layer deep neural network was built to design a metamaterial broadband polarization converter. Prototype samples were fabricated and tested to verify the accuracy of the prediction results. In general, the method is potentially applicable to the design of different kinds of sandwich-structure metamaterials, with different functions and in different frequency bands.

Item Type:	Article
Divisions:	Faculty of Science and Engineering > School of Physical Sciences
Depositing User:	Symplectic Admin
Date Deposited:	09 Aug 2023 14:26
Last Modified:	11 Oct 2023 12:51
DOI:	10.1038/s41598-023-32142-1
Related URLs:	Author Publisher
URI:	https://livrepository.liverpool.ac.uk/id/eprint/3172117