Results 11 to 20 of about 903 (183)

Switchable coding metasurface for flexible manipulation of terahertz wave based on Dirac semimetal

Results in Physics, 2022
In this study, a switchable coding metasurface was demonstrated in the terahertz (THz) frequency range to realize dynamic beam steering based on a Dirac semimXetal.
Jingjing Huang, Xiaona Yin, Man Xu, Meng Liu, Yuping Zhang, Huiyun Zhang   +5 more
doaj   +3 more sources

Phase and amplitude simultaneously coding metasurface with multi-frequency and multifunctional electromagnetic modulations [PDF]

Scientific Reports
The integration of multiple functionalities into a single, planar, ultra-compact metasurface has presented significant opportunities for enhancing capacity and performance within compact 5G/6G communication systems.
Chengxin Cai, Yinfei Li, Mingxing Li, Yao Qin, Yangyang Zhou   +4 more
doaj   +2 more sources

Direct Transmission of Digital Message via Programmable Coding Metasurface [PDF]

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   +3 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   +2 more sources

Secure wireless communication of brain–computer interface and mind control of smart devices enabled by space-time-coding metasurface [PDF]

Nature Communications
Brain–computer interface (BCI) provides an interconnected pathway between the human brain and external devices and paves a potential route for mind manipulations.
Qiang Xiao, Lin Han Fan, Qian Ma, Yu Ming Ning, Ze Gu, Long Chen, Lianlin Li, Jian Wei You, Ya Feng Niu, Tie Jun Cui   +9 more
doaj   +2 more sources

Multifunctional Coding-Feeding Metasurface Based on Phase Manipulation

Materials, 2022
Multiple functionalities on a shared aperture are crucial for metasurfaces (MSs) in many applications. In this paper, we propose a coding-feeding metasurface (CFMS) with the multiple functions of high-gain radiation, orbital angular momentum (OAM) generation, and radar cross-section (RCS) reduction based on phase manipulation. The unit cell of the CFMS
Si Jia Li, Cao Xiang-Yu, Li Si-Jia
exaly   +3 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

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

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

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