Results 11 to 20 of about 96,151 (324)
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 +5 more sources
Grid-oscillator beam-steering array [PDF]
Proceedings of IEEE Antennas and Propagation Society International Symposium and URSI National Radio Science Meeting, 2002 Recently Liao and York (see IEEE Trans. Microwave Theory Tech., vol.41, no.10, p.1810, 1993) showed that beam-steering can be achieved by detuning the end elements of a coupled-oscillator array. The advantage of this approach is that no phase shifters are required. Liao and York used a single line array of patch antennas. Here we report the results for
Shijie Li, D.B. Rutledge
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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
Hybrid Parasitic Linear Array Antenna for Fine Beamsteering Applications
IEEE 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
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Reconfigurable SIW-Based Leaky-Wave Antenna Composed of Longitudinal Cells
IEEE 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
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Transmitter Diversity with Beam Steering [PDF]
2019 21st International Conference on Transparent Optical Networks (ICTON), 2019 Providing high data rates is one of the drivers in visible light communication (VLC) systems. This paper introduces a VLC system that employs transmitters diversity with beam steering to provide high data rates. In this work, red, yellow, green, and blue (RYGB) laser diodes (LD) are used as transmitters to obtain a high modulation bandwidth.
Mohammed T. Alresheedi +2 more
openaire +3 more sources
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 +1 more source
Micromachines, 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
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Micromachines, 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
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High-Accuracy, High-Gain Phased Array Utilizing Matrix-Sum and Tunable Amplifier Techniques
IEEE 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
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