微波波段涡旋波束的多模式集成与动态调控研究进展  

Research Progress in Multi-Mode Integration and Dynamic Regulation of Microwave Band Vortex Beams

作　　者：袁乐眙 杨德生 刘云飞 张狂[1] YUAN Yueyi;YANG Desheng;LIU Yunfei;ZHANG Kuang(School of Electronic and Information Engineering,Harbin Insititute of Technology,Harbin 150001,China)

机构地区：[1]哈尔滨工业大学电子与信息工程学院,哈尔滨150001

出　　处：《电子与信息学报》2024年第5期1865-1873,共9页Journal of Electronics & Information Technology

基　　金：国家自然科学基金(62171165,6230011745);中国博士后面上基金(2022M710944);黑龙江省博士后基金(LBH-Z22017)。

摘　　要：该文回顾并总结了近期关于涡旋波束多模式集成与动态调控的研究成果与进展。首先从无源超表面透镜出发,利用传播相位与几何相位的综合调控作用,在单一超表面平台上实现了分数模涡旋波束的高纯度激发。更进一步,基于无源式超表面的多模式涡旋集成理论及方法,通过在超表面单元结构中加载变容二极管等有源可调谐式器件,实现涡旋波束的动态切换与人工调控。并在此基础上,对基于超表面的涡旋通信系统实现信道建模,并对涡旋通信系统的性能做出了理论分析与评估,为提高现代通信系统信道容量及信息传输速率打下理论基础。The recent researches on vortex beam multimode integration and dynamic regulation are summarized in this article.Starting from the passive metasurface lens,utilizing the comprehensive control effect of propagation phase and geometric phase,fractional modes of vortex beam with high-purity is realized on a single metasurface platform.Furthermore,based on the theory and method about multimode vortex beam integration by using passive metasurfaces,active tunable electromagnetic devices such as varactors are loaded into the metasurface unit cell to adopt dynamic switching and manual regulation of vortex beams.On this basis,a theoretical analysis and evaluation of the performance of vortex communication systems based on metasurface is conducted through channel modeling,laying a theoretical foundation for improving the channel capacity and information transmission rate of modern communication systems.

关 键 词：微波超表面 涡旋波束 多模式OAM集成 可重构调控 OAM通信 

分 类 号：TN919.8[电子电信—通信与信息系统]