Results 11 to 20 of about 674 (191)

Direct Transmission of Digital Message via Programmable Coding Metasurface

Research, 2019
In modern wireless communications, digital information is firstly converted to analog signal by a digital-analog convertor, which is then mixed to high-frequency microwave to be transmitted through a series of devices including modulator, mixer ...
Tie Jun Cui, Shuo Liu, Guo Dong Bai, Qian Ma   +3 more
doaj   +6 more sources

Dynamic RCS Reduction Performances of Antenna Array with Coding Metasurface

International Journal of Antennas and Propagation, 2022
On the basis of combining the two concepts of digital coding metasurface and metasurface antenna, low radar cross-section (RCS) coding metasurface antenna array with dynamic scattering performances is presented in this paper.
Yan Chen, Xiao-Xiang He, Yang Yang, Heng-Yan Hu, Fu-Kang Li, Lei Yang   +5 more
doaj   +2 more sources

Macroscopic model and statistical model to characterize electromagnetic information of a digital coding metasurface [PDF]

National Science Review, 2023
ABSTRACT A digital coding metasurface is a platform connecting the digital space and electromagnetic wave space, and has therefore gained much attention due to its intriguing value in reshaping wireless channels and realizing new communication architectures.
Rui Wen Shao, Jun Wei Wu, Zheng Xing Wang   +2 more
exaly   +4 more sources

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

Nature Communications, 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,
Si Ran Wang, Jun Yan Dai, Qun Yan Zhou, Jun Chen Ke, Qiang Cheng, Tie Jun Cui   +5 more
doaj   +2 more sources

Representing Quantum Information with Digital Coding Metasurfaces [PDF]

Advanced Science, 2020
With the development of science and technology, the way to represent information becomes more powerful and diversified. Recent research on digital coding metasurfaces has built an alternative bridge between wave‐behaviors and information science ...
Guo Dong Bai, Tie Jun Cui
doaj   +3 more sources

A Smart Metasurface for Electromagnetic Manipulation Based on Speech Recognition

Engineering, 2023
In this work, we propose and realize a smart metasurface for programming electromagnetic (EM) manipulations based on human speech recognition. The smart metasurface platform is composed of a digital coding metasurface, a speech-recognition module, a ...
Lin Bai, Yuan Ke Liu, Liang Xu, Zheng Zhang, Qiang Wang, Wei Xiang Jiang, Cheng-Wei Qiu, Tie Jun Cui   +7 more
doaj   +2 more sources

Digital Coding Metasurfaces: Toward Programmable and Smart Manipulations of Electromagnetic Functions

Leida xuebao, 2022
Digital coding metasurfaces are an important research branch of metamaterials and metasurfaces. The digital coding method replaces the equivalent medium theory to characterize metasurfaces, which not only simplifies the design process of metasurfaces but
Weixiang JIANG, Hanwei TIAN, Chao SONG, Xin’ge ZHANG   +3 more
doaj   +2 more sources

Two-Dimensional Beam Steering Based on Compact Programmable Coding Metasurface

Applied Sciences, 2022
A programmable coding metasurface provides unprecedented flexibility to manipulate electromagnetic waves dynamically. By controlling the peculiarity of subwavelength artificial atoms, devices with metasurfaces perform various functionalities.
Fei Yang, Fan Xu, Chenxi Liu, Xinyu Yang, Ziqiang Wang, Junwei Wu, Xiaojian Fu   +6 more
doaj   +2 more sources

Dynamical beam manipulation based on 2-bit digitally-controlled coding metasurface [PDF]

Scientific Reports, 2017
Recently, a concept of digital metamaterials has been proposed to manipulate field distribution through proper spatial mixtures of digital metamaterial bits.
Jianhua Cui, Bo Sun, Xiaoyu Wu, Wenbo Pan, Xiangang Luo, Cheng Huang   +5 more
core   +3 more sources

Using a Binary Coding Metasurface to Achieve Polarization‐Dependent Full‐Duplex and Full‐Polarization Receiving

Engineering Reports
Coding metasurfaces have the advantage of controlling electromagnetic waves by designing digital states of the unit elements. This digital mechanism can be conveniently integrated into electronic information systems, hence, coding metasurfaces have been ...
Jia Chen Wan, Jia Wei Wang, Xu Jie Wang, Xiang Wan   +3 more
doaj   +2 more sources