Results 211 to 220 of about 4,017 (247)

An Intelligent Programmable Omni‐Metasurface

Laser & Photonics Reviews, 2022
AbstractReconfigurable metasurfaces have emerged as a versatile platform for reshaping the wireless environment into a desirable form at low cost. Despite the rapid growth, most of the existing metasurfaces only support reflection operation or transmission operation, only providing service coverage of backward or forward half‐space when they are used ...
Qi Hu, Jianmin Zhao, Ke Chen, Kai Qu, Weixu Yang, Junming Zhao, Tian Jiang, Yijun Feng   +7 more
openaire   +1 more source

Cilia metasurfaces for electronically programmable microfluidic manipulation

Nature, 2022
Cilial pumping is a powerful strategy used by biological organisms to control and manipulate fluids at the microscale. However, despite numerous recent advances in optically, magnetically and electrically driven actuation, development of an engineered cilial platform with the potential for applications has remained difficult to realize1-6.
Wei Wang, Qingkun Liu, Ivan Tanasijevic, Michael F. Reynolds, Alejandro J. Cortese, Marc Z. Miskin, Michael C. Cao, David A. Muller, Alyosha C. Molnar, Eric Lauga, Paul L. McEuen, Itai Cohen   +11 more
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Optically-Driven Programmable Microwave Metasurfaces

2020 Cross Strait Radio Science & Wireless Technology Conference (CSRSWTC), 2020
Programmable metasurfaces have the real-time programmability for controlling electromagnetic (EM) waves, possessing many potential applications. Programmable metasurfaces were constructed typically by using the direct-current (DC) control system. However, these electronically-controlled metasurfaces need field-programmable gate arrays, power supplies ...
Xin-Ge Zhang, Wei-Xiang Jiang
openaire   +1 more source

DOA Estimation with Programmable Metasurface

2020 9th Asia-Pacific Conference on Antennas and Propagation (APCAP), 2020
A novel direction of arrival (DOA) estimation method based on a single programmable metasurface sensor and compressive sensing is proposed in this paper. In comparison with metasuface-based beam-scanning method, metasurface- based compressive sensing for DOA estimation has superior performance with smaller sampling length. A proof-of-concept experiment
Song Zha, Mingtuan Lin, Hanbing Liu, Zhaofeng Wu, Jibin Liu, Bowen Deng   +5 more
openaire   +1 more source

3-bit Programmable Reflective Metasurface

2018 12th International Symposium on Antennas, Propagation and EM Theory (ISAPE), 2018
A 3-bit programmable reflective metasurface is proposed in this paper. Each unit cell of the metasurface includes 4 pin diodes and by changing the states of the pin diodes, metasurface produces 8 distinct phase responses of $0,\boldsymbol{\pi}/4, \boldsymbol{\pi}/2,3\boldsymbol{\pi}/4, \boldsymbol{\pi}, 5\boldsymbol{\pi}/4,3\boldsymbol{\pi}/2$ and ...
Yasir Saifullah, Fuheng Zhang, Guo-Min Yang, Feng Xu   +3 more
openaire   +1 more source

A light-programmable metasurface

Nature Electronics, 2020
A reconfigurable metasurface based on integrated optoelectronic pixels can be programmed by visible light to implement different electromagnetic functions.
openaire   +1 more source

Programmable Metasurface Transmitter Aided Multicast Systems

2020 IEEE Wireless Communications and Networking Conference (WCNC), 2020
This paper considers a multi-antenna multicast system with programmable metasurface (PMS) based transmitter. Taking into account of the finite-resolution phase shifts of PMSs, a novel beam training approach is proposed, which achieves comparable performance as the exhaustive beam searching method but with much lower time overhead.
Xiaoling Hu, Caijun Zhong, Yongxu Zhu, Xiaoming Chen, Zhaoyang Zhang   +4 more
openaire   +1 more source

Beamforming with Neural-Networked Programmable Metasurfaces

2020 Fourteenth International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials), 2020
In this presentation, we outline a novel architecture to enable intelligent, reconfigurable multibeam antennas for future device-to-device wireless communications. Two-dimensional metamaterials – metasurfaces – have been proposed for high-throughput microwave/ millimeter and sub-millimeter band communications.
S. Maslovski, A. Abraray, N. Carvalho, A. Navarro   +3 more
openaire   +1 more source

Programmable Metasurface Cloaking for Arbitrarily External Object

2020 IEEE MTT-S International Conference on Numerical Electromagnetic and Multiphysics Modeling and Optimization (NEMO), 2020
Programmable metasurface enables many completely different functions to be realized on a single platform. Here, we propose a programmable metasurface to conceal an arbitrarily external object above the metasurface. The designed element loads with a varactor diode, and the capacitance can be turned electronically.
Lin Bai, Wei Cong Chen, Wei Xiang Jiang
openaire   +1 more source

Remotely Controlled Laser‐Programmable Microwave Metasurfaces

Advanced Optical Materials
AbstractProgrammable metasurfaces have brought significant advance to electromagnetic (EM) and related fields, making it easier and more efficient to manipulate the EM waves and realize higher tuning flexibility and range. However, how to achieve independent control of each unit of the programmable metasurface in a low‐overhead and wireless manner ...
Ya Lun Sun, Xin Ge Zhang, Zhixiang Huang, Bingcheng Zhu, Wei Xiang Jiang, Zaichen Zhang, Tie Jun Cui   +6 more
openaire   +1 more source