TY - JOUR
T1 - Multi-Domain Manipulations of Multi-Frequency Waves Based on Asynchronous Space-Time-Coding Digital Metasurface
AU - Wang, Si Ran
AU - Wu, Geng-Bo
AU - Liu, Wei
AU - Chen, Shao Nan
AU - Qi, Zhen Jie
AU - Zhang, Jun Wei
AU - Wu, Li Jie
AU - Gao, Xinxin
AU - Wang, Zheng Xing
AU - Dai, Jun Yan
AU - Cheng, Qiang
AU - Cui, Tie Jun
PY - 2025/7/22
Y1 - 2025/7/22
N2 - Metasurfaces have garnered significant attention for the ability to manipulate electromagnetic (EM) waves, enabling diverse applications such as beam steering, frequency conversion, and vortex-wave generation. However, achieving complete control of the EM properties such as phase, amplitude, polarization and momentum over multiple frequencies remains a challenge. Here, an asynchronous space-time-coding digital metasurface (ASTCM) is proposed to tackle the challenge. By segmenting the metasurface into distinct partitions and letting them be modulated at different frequencies and operated with different functions, ASTCM facilitates precise and comprehensive manipulations of multi-frequency EM waves, eliminating the need for multiple oscillators and radio-frequency (RF) chains. As proof-of-concept examples, three ASTCM experiments are carried out, including multi-frequency beam steering, construction of wireless communication system, and direction-of-arrival estimation. These experiments concurrently demonstrate the capability of ASTCM in manipulating full EM properties on multifrequency waves in a simple way, showcasing its potential to revolutionize wireless communication, radar, and integrated communication and sensing systems. © 2025 Wiley-VCH GmbH.
AB - Metasurfaces have garnered significant attention for the ability to manipulate electromagnetic (EM) waves, enabling diverse applications such as beam steering, frequency conversion, and vortex-wave generation. However, achieving complete control of the EM properties such as phase, amplitude, polarization and momentum over multiple frequencies remains a challenge. Here, an asynchronous space-time-coding digital metasurface (ASTCM) is proposed to tackle the challenge. By segmenting the metasurface into distinct partitions and letting them be modulated at different frequencies and operated with different functions, ASTCM facilitates precise and comprehensive manipulations of multi-frequency EM waves, eliminating the need for multiple oscillators and radio-frequency (RF) chains. As proof-of-concept examples, three ASTCM experiments are carried out, including multi-frequency beam steering, construction of wireless communication system, and direction-of-arrival estimation. These experiments concurrently demonstrate the capability of ASTCM in manipulating full EM properties on multifrequency waves in a simple way, showcasing its potential to revolutionize wireless communication, radar, and integrated communication and sensing systems. © 2025 Wiley-VCH GmbH.
KW - beam steering
KW - DOA estimation
KW - metasurface
KW - multifrequency electromagnetic wave manipulation
KW - wireless communication
UR - https://www.scopus.com/pages/publications/105001841329
UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-105001841329&origin=recordpage
U2 - 10.1002/lpor.202500184
DO - 10.1002/lpor.202500184
M3 - RGC 21 - Publication in refereed journal
SN - 1863-8880
VL - 19
JO - Laser & Photonics Reviews
JF - Laser & Photonics Reviews
IS - 14
M1 - 2500184
ER -