物理学报2026，Vol.75Issue(15)：394-405,12.DOI:10.7498/aps.75.20260343
宽带多功能可重构极化转换超表面
Broadband multifunctional reconfigurable polarization conversion metasurface
摘要
Abstract
Polarization manipulation of electromagnetic waves is of paramount importance in a wide spectrum of applications,including but not limited to radar detection,satellite communications,and advanced wireless systems.To date,the development of reconfigurable polarization conversion devices that simultaneously achieve high conversion efficiency,broad operating bandwidth,and high-level functional integration has become a critical unmet demand in this field.In this work,we design and experimentally demonstrate a broadband,multifunctional,reconfigurable polarization conversion metasurface integrated with PIN diodes.By independently tuning the ON/OFF states of the two loaded PIN diodes,we enable the proposed metasurface to achieve dynamic switching between multiple polarization manipulation functionalities,specifically linear-to-circular(LTC)polarization conversion,circular-to-linear(CTL)polarization conversion,linear-to-cross(LC)polarization conversion,circular-to-cross(LC/CC)polarization conversion,and stable polarization retention.In detail,LTC and CTL polarization conversion are realized across the 9.2-12.1 GHz frequency band,while LC and CC polarization conversion are achieved within 7.8-10.6 GHz and 7.9-9.6 GHz,respectively.Meanwhile,stable polarization retention is obtained over the 8.4-11.3 GHz band.Notably,a polarization conversion ratio(PCR)higher than 0.9 is achieved for all the aforementioned operating modes.The underlying physical mechanism of the proposed polarization manipulation is further elucidated through eigenmode analysis and surface current distribution characterization.The results confirm that the multimode coupling between electric and magnetic resonances is the core contributor to the broadband and high-efficiency polarization conversion performance.Full-wave electromagnetic simulations show excellent consistency with the experimental measurements of the fabricated prototype.This agreement rigorously verifies the feasibility and effectiveness of the proposed metasurface design.With its broad bandwidth and versatile reconfigurable capabilities,this design holds great promise for application in emerging fields such as polarization imaging,anti-jamming wireless communications,and radar stealth technology.关键词
超表面/可重构/极化转换Key words
metasurface/reconfigurable/polarization conversion引用本文复制引用
皮涛涛,袁方,郭文龙,和云龙,朱顺凯,李欣,李勇,涂刚毅,李程..宽带多功能可重构极化转换超表面[J].物理学报,2026,75(15):394-405,12.基金项目
国家资助博士后研究人员计划(批准号:GZB20240991)、国家自然科学基金青年科学基金(批准号:62401596,62501619)和国防科技大学自主科研基金(批准号:ZK25-102)资助的课题. Project supported by the Postdoctoral Fellowship Program of CPSF(Grant No.GZB20240991),the Young Scientists Fund of the National Natural Science Foundation of China(Grant Nos.62401596,62501619),and the Independent Research Fund Project of National University of Defense Technology,China(Grant No.ZK25-102). （批准号:GZB20240991）
