Optical multi-beam steering and communication using integrated acousto-optics arrays [PDF]
Nature CommunicationsOptical beam steering enables optical sensing, imaging, and long-range communication over free space. Despite the inherent speed of light, advanced applications increasingly require simultaneous steering of multiple, independently controlled beams, to ...
Qixuan Lin +6 more
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Beam‐Steering Metadevices for Intelligent Optical Wireless‐Broadcasting Communications
Advanced 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
Abnormal beam steering with kirigami reconfigurable metasurfaces. [PDF]
Nat CommunDynamically controlling electromagnetic waves at will is highly desired in many applications, but most previously realized mechanically reconfigurable metasurfaces are of restricted wave-control capabilities due to the limited tuning ranges of structural
Jiang G +13 more
europepmc +2 more sources
Beam steering with dielectric metalattices [PDF]
ACS Photonics, 2017 We study optical wave manipulations through high-index dielectric metalattices in both diffractionless metasurface and diffractive metagrating regimes. It is shown that the collective lattice couplings can be employed to tune the excitation efficiencies ...
Liu, Wei, Miroshnichenko, Andrey E.
core +3 more sources
Modulo-addition operation enables terahertz programmable metasurface for high-resolution two-dimensional beam steering. [PDF]
Sci 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
Semi-Coprime Array with Staggered Beam-Steering of Sub-Arrays [PDF]
Sensors, 2023 A split-aperture array (SAA) is an array of sensors or antenna elements in which the array is split into two or more sub-arrays (SAs). Recently proposed SAAs, namely coprime and semi-coprime arrays, offer to attain a small half-power beamwidth (HPBW ...
Waseem Khan +6 more
doaj +2 more sources
State-of-the-Art Passive Beam-Steering Antenna Technologies: Challenges and Capabilities
IEEE 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
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Dual-Band Passive Beam Steering Antenna Technologies for Satellite Communication and Modern Wireless Systems: A Review [PDF]
SensorsEfficient beam steerable high-gain antennas enable high-speed data rates over long-distance networks, including wireless backhaul, satellite communications (SATCOM), and SATCOM On-the-Move.
Maira I. Nabeel +4 more
doaj +2 more sources
Smart Gateway for Healthcare Networks Based on Beam Steering Technology [PDF]
Sensors, 2023 To ensure high-reliability communication in healthcare networks, this paper presents a smart gateway system that includes an angle-of-arrival (AOA) estimation and a beam steering function for a small circular antenna array.
Kazuhiro Honda +2 more
doaj +2 more sources
Arrayed waveguide lens for beam steering. [PDF]
Nanophotonics, 2022 Abstract Integrated planar lenses are critical components for analog optical information processing that enable a wide range of applications including beam steering. Conventional planar lenses require gradient index control which makes their on-chip realization challenging. Here, we introduce a new approach for beam steering by designing
Honari-Latifpour M +4 more
europepmc +4 more sources