Results 11 to 20 of about 101,767 (351)

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   +1 more source

Reconfigurable SIW-Based Leaky-Wave Antenna Composed of Longitudinal Cells

open access: yesIEEE Access, 2021
A novel fixed frequency beam-steering leaky-wave antenna (LWA) is presented in this manuscript. Radiation occurs through thin offset longitudinal slots etched on a substrate integrated waveguide (SIW).
Nima Javanbakht   +3 more
doaj   +1 more source

Real-Time CGH Generation by CUDA-OpenGL Interoperability for Adaptive Beam Steering with a MEMS Phase SLM

open access: yesMicromachines, 2022
Real-time, simultaneous, and adaptive beam steering into multiple regions of interest replaces conventional raster scanning with a less time-consuming and flexible beam steering framework, where only regions of interest are scanned by a laser beam.
Chin-I Tang   +2 more
doaj   +1 more source

Diffraction Efficiency of MEMS Phase Light Modulator, TI-PLM, for Quasi-Continuous and Multi-Point Beam Steering

open access: yesMicromachines, 2022
The recent development of the Micro Electromechanical System (MEMS) Phase Light Modulator (PLM) enables fast laser beam steering for lidar applications by displaying a Computer-Generated Hologram (CGH) without employing an iterative CGH calculation ...
Xianyue Deng   +3 more
doaj   +1 more source

High-Accuracy, High-Gain Phased Array Utilizing Matrix-Sum and Tunable Amplifier Techniques

open access: yesIEEE Access, 2023
This paper presents an 8-element phased array system and proposes a novel beam control method—namely, matrix-sum method—that can achieve beam steering and beam-width control.
Yi-Ting Lin, Zuo-Min Tsai, Jen-Ming Wu
doaj   +1 more source

Microswitch beam-steering grid [PDF]

open access: yesInternational Conference on Millimeter and Submillimeter Waves and Applications 1994, 2017
We propose new microswitch beam-steering grids to operate at 90 GHz and 240 GHz. The microswitch beam-steering grid has potential advantages over mechanical-scanning devices or active beam-steering reflectors based on diode grids such as lower loss and simple control circuits.
Chiao, Jung-Chih, Rutledge, David B.
openaire   +2 more sources

Liquid Crystal Beam Steering Devices: Principles, Recent Advances, and Future Developments

open access: yesCrystals, 2019
Continuous, wide field-of-view, high-efficiency, and fast-response beam steering devices are desirable in a plethora of applications. Liquid crystals (LCs)—soft, bi-refringent, and self-assembled materials which respond to various external stimuli&#
Ziqian He   +5 more
doaj   +1 more source

On-dimensional off-chip beam steering and shaping using optical phased arrays on silicon-on-insulator [PDF]

open access: yes, 2011
Optical beam steering can find applications in several domains such as laser scanning, LiDAR (Light Detection And Ranging), wireless data transfer and optical switches and interconnects.
Karel Van Acoleyen   +4 more
core   +2 more sources

Demonstration of Two-Dimensional Beam Steering through Wavelength Tuning with One-Dimensional Silicon Optical Phased Array

open access: yesPhotonics, 2022
We demonstrate two-dimensional beam steering through wavelength control using a one-dimensional optical phased array (OPA) in which a path difference is built up in each channel to allocate a phase delay sequentially.
Hyeonho Yoon   +6 more
doaj   +1 more source

Optically Controlled Beam-steering Wireless Systems [PDF]

open access: yesOptical Fiber Communication Conference (OFC) 2020, 2020
Wavelength-controlled 2D steering of mm-wave beams and infrared beams provides high communication capacity, privacy and energy efficiency. Using diffractive elements and accurate user localization, delivery of multiple 10GbE video streams by infrared beams is demonstrated.
Koonen, A.M.J. (Ton)   +5 more
openaire   +2 more sources

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