Transfer Learning for Inverse Design of Tunable Graphene-Based Metasurfaces

TL;DR

This paper presents a transfer learning-based CNN approach for the inverse design of tunable graphene metasurfaces, enabling efficient creation of reconfigurable EM devices with multiple functionalities.

Contribution

It introduces a novel CNN-based inverse design method utilizing transfer learning to efficiently design tunable graphene metasurfaces with multiple functionalities.

Findings

High accuracy in predicting chemical potentials for tunable responses

Significant reduction in training data collection time

Effective design of reconfigurable EM metasurfaces

Abstract

This paper outlines a new approach to designing tunable electromagnetic (EM) graphene-based metasurfaces using convolutional neural networks (CNNs). EM metasurfaces have previously been used to manipulate EM waves by adjusting the local phase of subwavelength elements within the wavelength scale, resulting in a variety of intriguing devices. However, the majority of these devices have only been capable of performing a single function, making it difficult to achieve multiple functionalities in a single design. Graphene, as an active material, offers unique properties, such as tunability, making it an excellent candidate for achieving tunable metasurfaces. The proposed procedure involves using two CNNs to design the passive structure of the graphene metasurfaces and predict the chemical potentials required for tunable responses. The CNNs are trained using transfer learning, which significantly reduced the time required to collect the training dataset. The proposed inverse design methodology demonstrates excellent performance in designing reconfigurable EM metasurfaces, which can be tuned to produce multiple functions, making it highly valuable for various applications. The results indicate that the proposed approach is efficient and accurate and provides a promising method for designing reconfigurable intelligent surfaces for future wireless communication systems.