Results 11 to 20 of about 1,829,864 (373)

Beam‐Steering Metadevices for Intelligent Optical Wireless‐Broadcasting Communications

open access: yesAdvanced Photonics Research, 2023
High‐performance beam‐steering devices play a crucial role for optical wireless communication (OWC), which can meet the demand for increasing number of wireless mobile devices and emerging high‐speed multimedia applications.
Jin Tao   +14 more
doaj   +2 more sources

State-of-the-Art Passive Beam-Steering Antenna Technologies: Challenges and Capabilities

open access: yesIEEE Access, 2023
This article reviews the latest developments of beam steering antennas that are entirely passive to realize interference-free, power-efficient, and highly secured end-to-end wireless communication.
Foez Ahmed   +2 more
doaj   +2 more sources

Terahertz Beam Steering Using a MEMS-Based Reflectarray Configured by a Genetic Algorithm

open access: yesIEEE Access, 2022
With the increase in potential uses of terahertz technology, the need for terahertz transceivers with application-oriented adaptive radiation patterns has emerged.
Xuan Liu   +10 more
doaj   +2 more sources

Multi-Beam Steering for 6G Communications Based on Graphene Metasurfaces

open access: yesSensors, 2021
As communication technology is entering the 6G era, a great demand for high-performance devices operating in the terahertz (THz) band has emerged. As an important part of 6G technology, indoor communication requires multi-beam steering and tracking to ...
Huifang Ai   +4 more
doaj   +2 more sources

Modulo-addition operation enables terahertz programmable metasurface for high-resolution two-dimensional beam steering. [PDF]

open access: yesSci Adv, 2023
Electrically controlled terahertz (THz) beamforming antennas are essential for various applications such as wireless communications, security checks, and radar to improve coverage and information capacity. The emerging programmable metasurface provides a
Li W   +11 more
europepmc   +2 more sources

Beam steering experiments through an optical phased array with wavelength tuning [PDF]

open access: yesEPJ Web of Conferences, 2023
In this paper, we have demonstrated the beam steering experiments with the help of our optical phased array devices. The lateral beam steering has been showed successfully with the wavelength through the tunable laser source.
Muntaha Sidra Tul   +5 more
doaj   +1 more source

6G Wireless Communications: From Far-Field Beam Steering to Near-Field Beam Focusing [PDF]

open access: yesIEEE Communications Magazine, 2022
6G networks will be required to support higher data rates, improved energy efficiency, lower latency, and more diverse users compared with 5G systems. To meet these requirements, electrically extremely large-scale antenna arrays are envisioned to be key ...
Haiyang Zhang   +4 more
semanticscholar   +1 more source

Active terahertz beam steering based on mechanical deformation of liquid crystal elastomer metasurface

open access: yesLight: Science & Applications, 2023
Active metasurfaces are emerging as the core of next-generation optical devices with their tunable optical responses and flat-compact topography. Especially for the terahertz band, active metasurfaces have been developed as fascinating devices for ...
Xiaolin Zhuang   +9 more
semanticscholar   +1 more source

Hybrid Parasitic Linear Array Antenna for Fine Beamsteering Applications

open access: yesIEEE Access, 2021
This paper presents an antenna that utilizes two beam steering techniques in concert in order to improve the antenna gain and steering resolution. Phased array steering is employed to achieve coarse resolution beam steering while parasitic steering is ...
Iyemeh E. Uchendu   +3 more
doaj   +1 more source

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