电波科学学报2026，Vol.41Issue(2)：266-273,8.DOI:10.12265/j.cjors.2025112
双极化独立调幅石墨烯超表面
Dual-polarization independently amplitude-modulated graphene metasurface
摘要
Abstract
Independent dynamic control of dual-polarized channels is crucial for enhancing channel capacity and addressing complex communication tasks.This paper proposes a metasurface composed of two graphene sandwich strips(GSS)placed orthogonally in the xOy plane,which,for the first time,achieves independent control of the reflection amplitude of dual-polarized electromagnetic waves.By independently adjusting the bias voltages applied to the two GSS,the polarized waves whose electric fields are parallel to the long edge of each strip can be significantly affected.Full wave simulations show that,while holding the sheet resistance of the strips oriented along x(or y)at 100 Ω/sq,increasing the sheet resistance of the orthogonal y-(or x-)oriented strips from 100 Ω/sq to 600 Ω/sq increases the reflection coefficient for y-(or x-)polarization from-19.78/-20.68 dB to-3.19/-3.39 dB at 3.76/3.748 GHz,corresponding to tuning ranges of 16.59/17.29 dB,while the reflection coefficient for the orthogonal x-(or y-)polarization remains essentially unchanged.To elucidate the physical mechanism of dual-polarized independent control,we analyze the surface current distributions of the GSS and develop an equivalent transmission line model of the metasurface.The proposed graphene metasurface thus realizes truly independent,dynamic control of reflection amplitude in dual-polarized channels,providing a new route to increasing channel capacity in complex communication scenarios.关键词
石墨烯超表面/石墨烯三明治/双极化/独立可调Key words
graphene metasurface/graphene sandwich/dual-polarized/independently tunable分类
信息技术与安全科学引用本文复制引用
王治宪,朱卫仁..双极化独立调幅石墨烯超表面[J].电波科学学报,2026,41(2):266-273,8.基金项目
上海市自然科学基金(25ZR1401214) （25ZR1401214）
国家自然科学基金(62071291)Shanghai Natural Science Fund(25ZR1401214) （62071291）
National Natural Science Foundation of China(62071291) （62071291）
