Results 11 to 20 of about 4,017 (247)

Metasurface‐Programmable Wireless Network‐On‐Chip

Advanced Science, 2022
This paper introduces the concept of smart radio environments, currently intensely studied for wireless communication in metasurface‐programmable meter‐scaled environments (e.g., inside rooms), on the chip scale.
Mohammadreza F. Imani, Sergi Abadal, Philipp del Hougne   +2 more
doaj   +8 more sources

Microwave Speech Recognizer Empowered by a Programmable Metasurface. [PDF]

Adv Sci (Weinh)
AbstractSpeech recognition becomes increasingly important in the modern society, especially for human–machine interactions, but its deployment is still severely thwarted by the struggle of machines to recognize voiced commands in challenging real‐life settings: oftentimes, ambient noise drowns the acoustic sound signals, and walls, face masks or other ...
Zhang H, Ruan H, Zhao H, Wang Z, Hu S, Cui TJ, Del Hougne P, Li L.   +7 more
europepmc   +7 more sources

Polarization‐Controlled Dual‐Programmable Metasurfaces [PDF]

Advanced Science, 2020
Programmable metasurfaces allow dynamic and real‐time control of electromagnetic (EM) waves in subwavelength resolution, holding extraordinary potentials to establish meta‐systems. Achieving independent and real‐time controls of orthogonally‐polarized EM
Xin Ge Zhang, Qian Yu, Wei Xiang Jiang, Ya Lun Sun, Lin Bai, Qiang Wang, Cheng‐Wei Qiu, Tie Jun Cui   +7 more
doaj   +3 more sources

Language-controllable programmable metasurface empowered by large language models [PDF]

Nanophotonics
Programmable metasurface has become a prominent tool in various areas including control, communication, computing, and so on, due to its unique capability in the electromagnetic (EM) manipulation. However, it is lack of the intelligence in the sense that
Hu Shengguo, Xu Jiawen, Li Mingyi, Cui Tie Jun, Li Lianlin   +4 more
doaj   +2 more sources

Design of a Wide-Angle and Polarization-Free 1-Bit Programmable Metasurface [PDF]

Frontiers in Materials, 2022
Programmable metasurfaces have the powerful capability of controlling electromagnetic (EM) waves by coding the digital state of each meta-atom. However, conventional programmable metasurface units are difficult to maintain stable controllability under ...
Lu Liu, Yi Fei Huang, Hao Chi Zhang
doaj   +2 more sources

Solar-powered light-modulated microwave programmable metasurface for sustainable wireless communications [PDF]

Nature Communications
Programmable metasurface holds big promise in wireless communications by virtue of its powerful capability in controlling electromagnetic waves. However, challenges exist for the programmable metasurface in achieving self-sufficient renewable energy ...
Han Wei Tian, Ya Lun Sun, Xin Ge Zhang, Xin Li, Qian Zhu, Chao Song, Cheng-Wei Qiu, Tie Jun Cui, Wei Xiang Jiang   +8 more
doaj   +2 more sources

Adaptively programmable metasurface for intelligent wireless communications in complex environments [PDF]

Nature Communications
The programmable metasurface or reconfigurable intelligent surface is one of the emerging technologies for next-generation wireless communications, but the existing programmable metasurfaces still rely on human control to reshape the electromagnetic (EM)
Han Qing Yang, Jun Yan Dai, Hui Dong Li, Lijie Wu, Zi Hang Shen, Qun Yan Zhou, Meng Zhen Zhang, Si Ran Wang, Zheng Xing Wang, Jun Wei Wu, Shi Jin, Wankai Tang, Qiang Cheng, Tie Jun Cui   +13 more
doaj   +2 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   +2 more sources

Construction of a Cost-Effective Phased Array Through High-Efficiency Transmissive Programable Metasurface [PDF]

Frontiers in Physics, 2020
Programmable metasurfaces have shown great potential in the areas of low-complexity phase array systems in comparison with the conventional phased array antennas.
Anjie Cao, Anjie Cao, Zhansheng Chen, Kai Fan, Yuehui You, Chong He   +5 more
doaj   +2 more sources

Amplifier‐Based Programmable Metasurface for Bidirectional Full Polarization Enhancement [PDF]

Small Structures
Electromagnetic waves emitted by a transmitter in practical scenarios are often degraded by obstacles along the transmission path, polarization mismatch, and distance to the receiver, which significantly limits the quality of wireless communication.
Xin Wang, Jia Qi Han, Kun Yi Zhang, De Xiao Xia, Hai Xia Liu, Long Li   +5 more
doaj   +2 more sources