Results 1 to 10 of about 96,002 (178)

Optical multi-beam steering and communication using integrated acousto-optics arrays [PDF]

open access: yesNature Communications
Optical 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
doaj   +2 more sources

Semi-Coprime Array with Staggered Beam-Steering of Sub-Arrays [PDF]

open access: yesSensors, 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

Demonstration of all-optical beam steering in modulated photonic lattices [PDF]

open access: green, 2005
We demonstrate experimentally all-optical beam steering in modulated photonic lattices induced optically by three beam interference in a biased photorefractive crystal. We identify and characterize the key physical parameters governing the beam steering,
Andrey A. Sukhorukov   +15 more
core   +2 more sources

Smart Gateway for Healthcare Networks Based on Beam Steering Technology [PDF]

open access: yesSensors, 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

Design of controlled RF switch for beam steering antenna array [PDF]

open access: green, 2008
YesA printed dipole antenna integrated with a duplex RF switch used for mobile base station antenna beam steering is presented. A coplanar waveguide to coplanar strip transition was adopted to feed the printed dipole.
Abd-Alhameed, Raed A.   +3 more
core   +3 more sources

Dual-Band Passive Beam Steering Antenna Technologies for Satellite Communication and Modern Wireless Systems: A Review [PDF]

open access: yesSensors
Efficient 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

A 4 × 4 Active Antenna Array with Adjustable Beam Steering [PDF]

open access: yesSensors, 2023
An adjustable 4×4 antenna array with electrical beam steering and polarization control is presented. Here, adjustability means the ability to correct the beam steering angle post-calibration.
Sebastian Verho   +2 more
doaj   +2 more sources

Electronic Two-Dimensional Beam Steering for Integrated Optical Phased Arrays [PDF]

open access: green, 2014
This paper presents electrical beam steering in an integrated 4x4 2D optical phased array (OPA) on a silicon on insulator (SOI) process enabling fast and repeatable beam steering for next generation projection, tracking, and ...
Abiri, Behrooz   +3 more
core   +3 more sources

Dynamic Beam Steering and Focusing Graphene Metasurface Mirror Based on Fermi Energy Control [PDF]

open access: yesMicromachines, 2023
Beam steering technology is crucial for radio frequency and infrared telecommunication signal processing. Microelectromechanical systems (MEMS) are typically used for beam steering in infrared optics-based fields but have slow operational speeds.
Sanghyeok Yu   +3 more
doaj   +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

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