Results 11 to 20 of about 330 (122)

Multi‐Channel Wireless Communication Based on Amplitude‐Phase Reconfigurable Space‐Coding Beamforming Metasurface

Advanced Electronic Materials
Reconfigurable metasurfaces have exhibited significant potential in wireless communication owing to their capacity to transmit information without relying on traditional complex radio frequency (RF) chain transmitters.
Qi Xiong, Zuojun Zhang, Xiaoliang Ma, Cheng Huang, Mingbo Pu, Jun Luo, Yinghui Guo, Yanxun Wang, WenLin Bai, Jia Ye, Lianshan Yan, Xiangang Luo   +11 more
doaj   +2 more sources

Independent control of harmonic amplitudes and phases via a time-domain digital coding metasurface. [PDF]

Light Sci Appl, 2018
AbstractHarmonic manipulations are important for applications such as wireless communications, radar detection and biological monitoring. A general approach to tailor the harmonics involves the use of additional amplifiers and phase shifters for the precise control of harmonic amplitudes and phases after the mixing process; however, this approach leads
Dai JY, Zhao J, Cheng Q, Cui TJ.
europepmc   +4 more sources

Metasurfaces: Wireless Communications through a Simplified Architecture Based on Time‐Domain Digital Coding Metasurface (Adv. Mater. Technol. 7/2019) [PDF]

Advanced Materials Technologies, 2019
Wan Kai Tang, Qiang Cheng, Ming Zheng Chen, Shi Jin, Jie Zhao, Jun Chen Ke, Tie Jun Cui, Jun Yan Dai, Xiang Li   +8 more
core   +2 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
Wang Z, Su X, Hu P, Liu T, Sun H, Liu Z.
europepmc   +2 more sources

Directly wireless communication of human minds via non-invasive brain-computer-metasurface platform [PDF]

, 2022
Brain-computer interfaces (BCIs), invasive or non-invasive, have projected unparalleled vision and promise for assisting patients in need to better their interaction with the surroundings.
Zhou, Yajun, Gu, Ze, Abbasi, Qammer H., Gao, Wei, Gao, Xinxin, Li, Lianlin, Li, Yuanqing, Cui, Tie Jun, Xiao, Qiang, Gao, Tianyi, Qiu, Cheng-Wei, Ding, Lingsong, Ma, Qian, Yan, Tao, Kong, Xianghong, Liu, Che   +15 more
core   +1 more source

Generation of superhelical time-varying OAM beam with space-time-coding digital metasurface

, 2022
The recently proposed extreme-ultraviolet (EUV) beams with time-varying orbital angular momentum (OAM) realized by high-harmonic generation (HHG) provides extraordinary tools for quantum excitation control and particle manipulation.
Peixing Li (14362017), Alex M H Wong (14362020), Jensen Li (1914004), Jingxin Zhang (737647)   +3 more
core   +1 more source

Generation of time-varying orbital angular momentum beams with space-time-coding digital metasurface

, 2023
The recently proposed extreme-ultraviolet beams with time-varying orbital angular momentum (OAM) realized by high-harmonic generation provide extraordinary tools for quantum excitation control and particle manipulation.
Zhang, Jingxin, Li, Peixing, Li, Jensen, Wong, Alex M.H., Cheung, Ray C.C.   +4 more
core   +1 more source

Manipulations of multi-frequency waves and signals via multi-partition asynchronous space-time-coding digital metasurface

, 2023
Manipulations of multiple carrier frequencies are especially important in a variety of fields like radar detection and wireless communications. In conventional radio-frequency architecture, the multi-frequency control is implemented by microwave circuits,
Qiang Cheng, Qun Yan Zhou, Jun Chen Ke, Tie Jun Cui, Jun Yan Dai, Si Ran Wang   +5 more
core   +1 more source

Arbitrary manipulations of dual harmonics and their wave behaviors based on space-time-coding digital metasurface

, 2020
Space-time modulated metasurfaces have attracted significant attention due to the additional degree of freedom in manipulating the electromagnetic (EM) waves in both space and time domains.
Jin Yang (86490), Qiang Cheng (389924), Ming Zheng Chen (17516637), Jun Chen Ke (17516640), Jun Yan Dai (17516631), Wankai Tang (17516634), Tie Jun Cui (655215), Shi Jin (641785)   +7 more
core   +2 more sources

Flexibly control of vortex beams based on all-dielectric Pancharatnam-Berry phase transmission encoding metamaterials

, 2023
Because the ohmic loss of metal materials affects the transmission efficiency of metasurface, we design a transmission-type all-dielectric coded metasurface element structure based on the principle of Pancharatnam-Berry geometric phase.
Tianqi Zhao, Zhi Hong, Lan Ke, Chenxia Li, Peng Zhang, Xufeng Jing, Bo Fang   +6 more
core   +1 more source