TY - GEN
T1 - A Chiral Metasurface for Vortex Wavefront Manipulation in Microwave Region
AU - Yang, Shuai
AU - Huang, Shuai
AU - Yuan, Yueyi
AU - Wu, Qun
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - Phase-engineered metasurfaces are widely used for wavefront reconstruction, as they can introduce a specific spatial phase distribution function. However, the most commonly used phase modulation method, geometric phase, can only regulate circular polarized electromagnetic waves and cannot effectively manipulate linear polarized waves. The other widely used phase scheme, propagation phase, cannot work directly in the cross linearly polarized channels, limiting the application scenarios of the metasurface to some extent. In this paper, a unit cell is designed with three stacked split resonant rings in the X-band, whose chiral configuration originates from the twisting angles between adjacent layers. Based on these units, a metasurface is constructed to generate a vortex beam with mode 1 in the cross-polarized component under linearly polarized incident waves. Meanwhile, the co-polarized components are suppressed to achieve high efficiency and high purity vortex wavefront regulation.
AB - Phase-engineered metasurfaces are widely used for wavefront reconstruction, as they can introduce a specific spatial phase distribution function. However, the most commonly used phase modulation method, geometric phase, can only regulate circular polarized electromagnetic waves and cannot effectively manipulate linear polarized waves. The other widely used phase scheme, propagation phase, cannot work directly in the cross linearly polarized channels, limiting the application scenarios of the metasurface to some extent. In this paper, a unit cell is designed with three stacked split resonant rings in the X-band, whose chiral configuration originates from the twisting angles between adjacent layers. Based on these units, a metasurface is constructed to generate a vortex beam with mode 1 in the cross-polarized component under linearly polarized incident waves. Meanwhile, the co-polarized components are suppressed to achieve high efficiency and high purity vortex wavefront regulation.
KW - Chiral metasurface
KW - linearly polarized wave
KW - microwave lens
KW - vortex beam
KW - wave-front manipulation
UR - https://www.scopus.com/pages/publications/85173056470
U2 - 10.1109/iWEM58222.2023.10234847
DO - 10.1109/iWEM58222.2023.10234847
M3 - 会议稿件
AN - SCOPUS:85173056470
T3 - 2023 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition, iWEM 2023
SP - 156
EP - 158
BT - 2023 IEEE International Workshop on Electromagnetics
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2023 IEEE International Workshop on Electromagnetics: Applications and Student Innovation Competition, iWEM 2023
Y2 - 15 July 2023 through 18 July 2023
ER -