Results 321 to 330 of about 1,829,864 (373)
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IEEE Transactions on Antennas and Propagation, 2021
A continuous beam-steering solution for circularly polarized (CP) radial-line slot array (RLSA) antennas is presented and demonstrated with a fabricated prototype.
M. Afzal +2 more
semanticscholar +1 more source
A continuous beam-steering solution for circularly polarized (CP) radial-line slot array (RLSA) antennas is presented and demonstrated with a fabricated prototype.
M. Afzal +2 more
semanticscholar +1 more source
A Back-fire to Forward Wide-Angle Beam Steering Leaky-wave Antenna Based on SSPPs
IEEE Transactions on Antennas and Propagation, 2022We demonstrate an efficient back-fire to forward wide-angle beam steering leaky-wave antenna (LWA) based on a large dispersion gradient planar spoof surface plasmon polariton (SSPP) transmission line (TL) with split-ring units.
L. Ye +5 more
semanticscholar +1 more source
Advances in Materials, 2021
Beam‐steering devices, which are at the heart of optical wireless‐broadcasting communication links, play an important role in data allocation and exchange.
Jin Tao +11 more
semanticscholar +1 more source
Beam‐steering devices, which are at the heart of optical wireless‐broadcasting communication links, play an important role in data allocation and exchange.
Jin Tao +11 more
semanticscholar +1 more source
Ultrawideband Beam Steering at mm-Wave Frequency With Planar Dielectric Phase Transformers
IEEE Transactions on Antennas and Propagation, 2022In this article, a new method to design an ultrawideband beam-steering antenna system is presented. The system is completely passive and suitable for millimeter-wave applications, including some in defense, where both discrete beam steering and ...
A. A. Baba +4 more
semanticscholar +1 more source
Nano letters (Print), 2021
We introduce a genetic-type tree search (GTTS) algorithm combined with unsupervised clustering for the automatic inverse design of high-performance metasurfaces.
Chia-Hsiang Lin +7 more
semanticscholar +1 more source
We introduce a genetic-type tree search (GTTS) algorithm combined with unsupervised clustering for the automatic inverse design of high-performance metasurfaces.
Chia-Hsiang Lin +7 more
semanticscholar +1 more source
SPIE Proceedings, 2004
A number of concepts using the principle of the refraction of light have been developed to steer light beams. Refractive beam steering concepts involve the use of optical wedges in order to deviate a light beam. This principle is ideally suited for steering laser light since dispersion is minimal due to the monochromatic nature of the laser.
Roland E. Juhala, George Dube
openaire +1 more source
A number of concepts using the principle of the refraction of light have been developed to steer light beams. Refractive beam steering concepts involve the use of optical wedges in order to deviate a light beam. This principle is ideally suited for steering laser light since dispersion is minimal due to the monochromatic nature of the laser.
Roland E. Juhala, George Dube
openaire +1 more source
IEEE Transactions on Antennas and Propagation, 2021
In this paper, a compact and low-profile beam steering circularly polarized folded reflectarray antenna (CPFRA) with low scan loss for wide-angle coverage is proposed and designed. In order to obtain lower scan loss over a wider beam coverage range (BCR),
Zhen-Yu Yu +5 more
semanticscholar +1 more source
In this paper, a compact and low-profile beam steering circularly polarized folded reflectarray antenna (CPFRA) with low scan loss for wide-angle coverage is proposed and designed. In order to obtain lower scan loss over a wider beam coverage range (BCR),
Zhen-Yu Yu +5 more
semanticscholar +1 more source
Beam Steering with Linear Arrays
IEEE Transactions on Biomedical Engineering, 1983The principles and techniques of real-time imaging with phased array ultrasound scanners are reviewed. Topics include 1) the geometric optics of beam steering and focusing with a linear array in the transmit and receive modes; 2) limitations on image data acquisition due to ultrasound propagation velocity; 3) optical diffraction theory for linear ...
O T, von Ramm, S W, Smith
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2019 8th Asia-Pacific Conference on Antennas and Propagation (APCAP), 2019
To reduce a risk of damage from an exposure and the guarantee of a stable receive level, in case of the system of a wireless LAN, a printed type inverted F antenna for beam-steering is designed and its characteristic is measured. A parasitic element having the optimized length and interval is attached in both sides of the printed type inverted F ...
Jong-Myung Woo +4 more
openaire +1 more source
To reduce a risk of damage from an exposure and the guarantee of a stable receive level, in case of the system of a wireless LAN, a printed type inverted F antenna for beam-steering is designed and its characteristic is measured. A parasitic element having the optimized length and interval is attached in both sides of the printed type inverted F ...
Jong-Myung Woo +4 more
openaire +1 more source
UCA Based OAM Beam Steering With High Mode Isolation
IEEE Wireless Communications Letters, 2022In the case of uniform circular array (UCA) based Orbital Angular Momentum (OAM) communications with misaligned transceivers, beam steering is needed to overcome the performance deterioration.
Wei Yu, Bin Zhou, Z. Bu, Yu Zhao
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