Results 21 to 30 of about 1,192 (198)

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

Flexible terahertz beam manipulation and convolution operations in light-controllable digital coding metasurfaces

iScience
Summary: The development of coding metasurface opens an important development direction for beam modulator components. However, the lack of dynamic tunability is a major obstacle to the development and practicality of terahertz coding metasurface.
Min Jia, Chao Zhao, Hui Wang, Weiran Sun, Yuncheng Lu   +4 more
doaj   +2 more sources

Dual-polarized multiplexed meta-holograms utilizing coding metasurface

Nanophotonics, 2020
In this paper, a novel method is proposed to achieve two distinct information channels by simultaneously manipulating both the transmitted cross- and co-polarized components of a 1-bit coding metasurface under linearly polarized incidence.
Guan Chunsheng, Liu Jian, Ding Xumin, Wang Zhuochao, Zhang Kuang, Li Haoyu, Jin Ming, Burokur Shah Nawaz, Wu Qun   +8 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

Hilbert-Coding Metasurface for Diverse Electromagnetic Controls. [PDF]

Materials (Basel), 2022
Metamaterials, or metasurfaces, allow the flexible and efficient manipulation of electromagnetic (EM) wave. Although the passive coding metasurfaces have achieved a great deal of functionality, they also need a complex design process. In this paper, we propose Hilbert-coding metasurfaces for flexible and convenient EM regulation by arranging Hilbert ...
Hao J, Ye F, Ruan Y, Chen L, Cui H.
europepmc   +3 more sources

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

Single-pixel polarimetric direction of arrival estimation using programmable coding metasurface aperture. [PDF]

Sci Rep, 2021
This paper presents a single-pixel polarimetric compressive sensing (CS)-based direction of arrival (DoA) estimation technique using a cavity backed programmable coding metasurface aperture.
Hoang TV, Fusco V, Abbasi MAB, Yurduseven O.   +3 more
europepmc   +2 more sources

Design of a 2-Bit wide-angle coding metasurface for bistatic RCS reduction

Frontiers in Materials, 2022
A 2-bit wide-angle coding metasurface is proposed to decrease the bistatic radar cross section (RCS) in this study. Each meta-atom of the designed coding metasurface is composed of a wide-beamwidth microstrip antenna whose feeding port is loaded with an ...
Yi Fei Huang, Zhongjin Jiang, Lu Liu, Hao Chi Zhang   +3 more
doaj   +1 more source

Programmable Amplitude‐Coding Metasurface with Multifrequency Modulations [PDF]

Advanced Intelligent Systems, 2021
Recently, programmable metasurfaces have aroused great attention for various applications such as beam manipulation, wireless communication, and holograms by modulating the spatial phase or amplitude. However, programmable amplitude‐coding modulations have rarely been investigated due to the difficulty in realizing dynamic control of amplitude. Herein,
Qiao Ru Hong, Qian Ma 0013, Xin Xin Gao, Che Liu 0004, Qiang Xiao 0004, Shahid Iqbal, Tie Jun Cui   +6 more
openaire   +2 more sources

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

Results in Physics, 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.
Peng Zhang, Lan Ke, Bo Fang, Tianqi Zhao, Chenxia Li, Zhi Hong, Xufeng Jing   +6 more
doaj   +1 more source