太赫兹科学与电子信息学报2024，Vol.22Issue(5)：565-574,10.DOI:10.11805/TKYDA2022131
基于石墨烯的多功能超表面设计
A graphene-based multi-function metasurface
摘要
Abstract
In order to achieve the integrated function of absorption/transmission/reflection of airborne antenna covers,a multifunctional metasurface based on graphene and Positive Intrinsic-Negative(PIN)diode is presented,which bears the function of wideband absorption/refection/transmission.When the PIN diode operates in forward biased condition,the transmittance of the metasurface is close to 0,and the reflection can be adjusted by changing the Fermi energy of graphene.When the Fermi level of graphene is 0.3 eV,the absorption of the metasurface is more than 90%from 1.55 GHz to 5.51 GHz,and the reflection coefficient is 45%at this band with the graphene energy level of 0eV.On the contrary,with the PIN diode acting in reverse biased condition,a transmission peak appears at 4.76 GHz with the transmission coefficients of 61%and 71%respectively when the Fermi level of graphene is 0.3 eV and 0 eV.Due to its advantages of having a simple structure,wideband absorption,and switchable refection/transmission,the proposed metasurface shows the potential in the fields of stealth of communication equipment and radar.关键词
超表面/石墨烯/宽带吸波/透射/反射/光电二极管Key words
metasurface/graphene/wideband absorption/transmission/refection/Positive Intrinsic-Negative分类
通用工业技术引用本文复制引用
王连胜,夏冬艳,付全红,丁学用,汪源..基于石墨烯的多功能超表面设计[J].太赫兹科学与电子信息学报,2024,22(5):565-574,10.基金项目
海南省自然科学基金资助项目(620MS062) （620MS062）
