Results 1 to 10 of about 674 (191)

Convolution operations on time-domain digital coding metasurface for beam manipulations of harmonics [PDF]

Nanophotonics, 2020
Time-domain digital coding metasurfaces have been proposed recently to achieve efficient frequency conversion and harmonic control simultaneously; they show considerable potential for a broad range of electromagnetic applications such as wireless ...
Zhang Cheng, Yang Jin, Yang Liu Xi, Ke Jun Chen, Chen Ming Zheng, Cao Wen Kang, Chen Mao, Wu Zhan Hao, Chen Jian Feng, Cheng Qiang, Cui Tie Jun   +10 more
doaj   +4 more sources

Cross-eye jamming method based on 1-bit digital coding metasurface [PDF]

iScience
Summary: Monopulse radar angle measurement technology is crucial for modern missile precision guidance systems due to its high accuracy and real-time capabilities. Cross-eye jamming (CEJ) is recognized as one of the most effective countermeasures against
Zehao Wang, Xiaolong Su, Panhe Hu, Tianpeng Liu, Haobin Sun, Zhen Liu   +5 more
doaj   +5 more sources

Multitask bidirectional digital coding metasurface for independent controls of multiband and full-space electromagnetic waves [PDF]

Nanophotonics, 2022
Full-space metasurfaces demonstrate powerful abilities in manipulating electromagnetic (EM) waves, but most of them are usually single band. Here, a multiband bidirectional digital coding metasurface is proposed for multiple tasks, which can achieve ...
Wu Liang Wei, Ma Hui Feng, Gou Yue, Wu Rui Yuan, Wang Zheng Xing, Xiao Qiang, Cui Tie Jun   +6 more
doaj   +3 more sources

Asynchronous Space‐Time‐Coding Digital Metasurface

Advanced Science, 2022
Recent progress in space‐time‐coding digital metasurface (STCM) manifests itself a powerful tool to engineer the properties of electromagnetic (EM) waves in both space and time domains, and greatly expands its capabilities from the physical manipulation ...
Si Ran Wang, Ming Zheng Chen, Jun Chen Ke, Qiang Cheng, Tie Jun Cui   +4 more
doaj   +4 more sources

Digital coding metasurface for Multi-Beam and Multi-Mode OAM in Full-Space

Results in Physics, 2023
A digital coding metasurface is proposed to generate multi-beam and multi-mode orbital angular momentum (OAM) wave in the full space. The 3-bit coding elements are designed for multifunctional integrated digital coding metasurface (MIDCMS) based on the ...
Xiaobin Liu, Sijia Li, Chengyuan He, Huanhuan Yang, Xiangyu Cao   +4 more
doaj   +4 more sources

Multifunctional Programmable Transmissive Metasurface with Phase and Amplitude Manipulation Capability [PDF]

Advanced Science
Digital and programmable metasurfaces provide novel approaches to connect electromagnetic (EM) physics with information science for flexible EM wave manipulation and information modulation.
Hao Tian Shi, Rui Yuan Wu, Shi He, Xue Yun Guo, Xiao Qing Chen, Yi Ning Zheng, Bing Bing Zhu, Lei Zhang, Tie Jun Cui   +8 more
doaj   +3 more sources

Radar Micro‐Doppler Signature Generation Based on Time‐Domain Digital Coding Metasurface [PDF]

Advanced Science
Micro‐Doppler effect is a vital feature of a target that reflects its oscillatory motions apart from bulk motion and provides an important evidence for target recognition with radars.
Si Ran Wang, Jun Yan Dai, Jun Chen Ke, Zhan Ye Chen, Qun Yan Zhou, Zhen Jie Qi, Ying Juan Lu, Yan Huang, Meng Ke Sun, Qiang Cheng, Tie Jun Cui   +10 more
doaj   +3 more sources

XOR‐Logic Phase Coding Programmable Metasurface for Low Power‐Consumption Systems [PDF]

Advanced Science
Programmability greatly enhances the degree of freedom to manipulate electromagnetic (EM) waves dynamically and lays crucial foundation for intelligent applications of metasurfaces.
Ruichao Zhu, Sai Sui, Junyan Dai, Qunyan Zhou, Yuxiang Jia, Yajuan Han, Yuxi Li, Shaojie Wang, Qiang Cheng, Jiafu Wang, Tie Jun Cui   +10 more
doaj   +2 more sources

Random Time-Space Coding Metasurfaces for Spatial Control of the Temporal Statistics of Electromagnetic Fields. [PDF]

Adv Sci (Weinh)
A probabilistic framework based on random time‐space coding metasurfaces enables control of the spatial distribution of electromagnetic fields temporal statistics. By tailoring the marginal and joint distributions of random codes, electromagnetic fields with desired mean and variance patterns are realized, enabling simultaneous transmission and jamming.
Li JC, Bao JH, Liu C, Cui TJ.
europepmc   +2 more sources

Hierarchical Reconfigurable Metasurface Based on Scenario-Guided Functional Modules and Programmable Core. [PDF]

Adv Sci (Weinh)
This paper proposes a hierarchical reconfigurable metasurface architecture (HRMA) to achieve comprehensive electromagnetic parameter modulation and on‐demand polymorphic function switching. The reconfigurable metasurface is divided into a programmable core (PC) and scenario‐guided functional modules (FMs), exhibiting significant flexibility and ...
Zhu L, Han J, Zheng Z, Feng Q, Xia D, Ma X, Mu Y, Luo G, Li R, Liu H, Xue H, Li L.   +11 more
europepmc   +2 more sources