【作者】 田哲源； 席瑞； 李龙；

【Author】 Zheyuan Tian;Rui Xi;Long Li;Hangzhou Institute of Technology, Xidian University;Key Laboratory of High-Speed Circuit Design and EMC of Ministry of Education School of Electronic Engineering, Xidian University;

【机构】 西安电子大学杭州研究院； 西安电子科技大学电子工程学院超高速电路设计与电磁兼容教育部重点实验室；

【摘要】 本文提出了一种基于ITO材料的光学透明超表面设计。通过正向神经网络(FNN)辅助超表面单元设计的方法,确定了由两层PET材料基板、一层ITO膜、垂直ITO立柱以及两层图案化ITO膜组成的单元结构。所选材料具备优异的透光性能,在确保超表面高光学透明度的同时,于2.4GHz～3.8GHz,8.6GHz～11.2GHz两个频段实现了超过0.9的吸收率,并且展现了良好的极化不敏感性。本设计的超表面单元兼具结构简洁、光学透明以及双频段吸波特性,为微波吸收与光学透明超表面的研究提供了新思路。更多还原

【Abstract】 This paper proposes an optical transparent metasurface design based on ITO materials.By using the forward neural network(FNN) to assist the metasurface units design, the unit structure is composed of two layers of PET material substrates, one layer of ITO film, vertical ITO pillar, and two layers of patterned ITO films. The selected materials have excellent light transmission performance. While ensuring the high optical transparency of the metasurface, it achieves an absorption rate of over 0.9 in the frequency bands of 2.4 GHz to 3.8 GHz and 8.6 GHz to 11.2 GHz, and demonstrates good polarization insensitivity. The designed metasurface unit combines a simple structure with dual-band absorption characteristics and optical transparency,providing a new idea for the research of microwave absorption and optical transparent metasurfaces.更多还原