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报告时间：2023年12月13日（周三）上午9:30
报告地点：武汉大学信息学部西区综合楼电子信息学院501会议室
报告题目：利用相位对称操作的高效波束操纵调制超表面Efficient Beam Manipulation with Phase Symmetry Operations on Modulated Metasurfaces
报告人：梅鹏
报告摘要：
波束操纵在波工程中至关重要，它可以实现各种波束形状如高增益波束、平顶波束和等流量波束，以适应不同的应用任务。在这些波束中，利用依赖于优化算法的传统综合方法去塑造平顶和等流量波束仍然具有挑战性。在这里，我们开发调制超表面，通过执行相位对称操作，从场的叠加的第一原理高效生成平顶和等流量波束，而仅需要可忽略的优化。理论分析不仅有助于形成1D和2D平顶和等流量波束，而且展示了可控制的波束宽度。实验证实了相位对称操作在生成具有可调波束宽度的平顶波束方面的功效。相位对称操作的概念可以扩展到其他矢量或标量分量，为各种波的操纵提供潜在应用，例如声波、水面波等，从而推动相关应用的发展。
Beam manipulation is of paramount importance in wave engineering, enabling diverse beam shapes like pencil beams, flat-top beams, and isoflux beams to cater to various application missions. Among the beams, shaping flat-top and isoflux beams remains challenging with the traditional synthesis approaches that mainly rely on optimization algorithms. Here, we develop modulated metasurfaces to efficiently generate flat-top and isoflux beams from the first principle of field superposition with negligible optimizations, by performing phase symmetry operations. The theoretical analysis not only facilitates the shaping of 1D and 2D flat-top and isoflux beams but also exhibits controllable beamwidths. Experimental validation confirms the efficacy of the phase symmetry operations in generating flat-top beams with adjustable beamwidths. The concept of phase symmetry operations can be extended to other vectorial or scalar components, offering potential applications for the manipulation of various waves such as acoustic waves, water surface waves, and beyond, thereby advancing related applications.
报告人简介：
梅鹏目前担任丹麦奥尔堡大学电子系统系助理教授。他于2015年和2018年分别在中国电子科技大学获得电磁场与微波技术专业学士学位和硕士学位，于2021年在丹麦奥尔堡大学获得无线通信专业博士学位，并于2023年8月在奥尔堡大学完成了博士后工作。 梅鹏博士的主要研究领域涵盖周期结构，超表面，毫米波波束扫描天线，反射阵与透射阵天线，以及可重构智能表面。硕士论文荣获2019年中国电子学会优秀硕士论文奖。曾担任四个国际会议的分会主席，同时担任2023 年国际天线技术研讨会的最佳论文竞赛共同主席。目前，梅鹏博士担任IEEE Open Journal of Antennas and Propagation 和 Sensors 特刊首席客座编辑，以及Frontiers in Antennas and Propagation 特刊客座编辑，入选了2022年由斯坦福大学发布的全球前2%科学家名单。
Peng Mei is currently working as an assistant professor at the Department of Electronic Systems, Aalborg University, Denmark. He received his B.Eng. and M. Eng. (with the highest honor) degrees in electromagnetic fields and microwave technology from the University of Electronic Science and Technology of China (UESTC), China, in 2015 and 2018, respectively, where he was a recipient of the Excellent Master Thesis from the Chinese Institute of Electronics (CIE) in 2019. Then, he moved to Denmark and got his Ph.D. degree in wireless communications from Aalborg University, Denmark, in 2021, where he completed his postdoctoral training at the same institution in Aug 2023. His current research interests include periodic structures, metasurface, millimeter-wave beam-steerable antennas, reflectarray and transmitarray antennas, and reconfigurable intelligent surfaces. Dr. Mei served as session chairs for four international conferences and served as a best paper competition co-chair of the 2023 International Workshop on Antenna Technology. Dr. Mei currently serves as the lead guest editor of the special section “Recent Advances on Absorbers/Rasorbers and Their Applications on Antennas and EMC” launched by IEEE Open Journal of Antennas and Propagation in 2023, guest editor of the article collection entitled “Advancing Antenna Technologies for Cellular and Satellite Communications” launched by Frontiers in Antennas and Propagation in 2023, and lead guest editor of the special issue “Advanced Massive MIMO Antenna Arrays, Metasurfaces, and Reconfigurable Intelligent Surfaces for Sensing, Localization, and Wireless Communications” launched by Sensors in 2022. Dr. Mei is listed in the World Top 2% Scientists in Year 2022 published by Standford University.