Results 31 to 40 of about 19,487 (306)
The Design of a Sliding Rectangular Waveguide Array Antenna for Beam Steering [PDF]
Journal of Electromagnetic Engineering and Science, 2023 In this paper, we designed a sliding waveguide array antenna that can be beam-steered via mechanical manipulation. This reduces the vulnerability of electronic beam-steering radars mounted on ships or aircraft to electromagnetic pulse (EMP) attacks.
Yoon-Seon Choi +3 more
doaj +1 more source
Scalability Analysis of Programmable Metasurfaces for Beam Steering [PDF]
IEEE Access, 2020 Programmable metasurfaces have garnered significant attention as they confer unprecedented control over the electromagnetic response of any surface. Such feature has given rise to novel design paradigms such as Software-Defined Metamaterials (SDM) and Reconfigurable Intelligent Surfaces (RIS) with multiple groundbreaking applications.
Hamidreza Taghvaee +9 more
openaire +6 more sources
Error Analysis of Programmable Metasurfaces for Beam Steering [PDF]
IEEE Journal on Emerging and Selected Topics in Circuits and Systems, 2020 Recent years have seen the emergence of programmable metasurfaces, where the user can modify the EM response of the device via software. Adding reconfigurability to the already powerful EM capabilities of metasurfaces opens the door to novel cyber-physical systems with exciting applications in domains such as holography, cloaking, or wireless ...
Hamidreza Taghvaee +3 more
openaire +5 more sources
Electronic Beam Steering Metamaterial Antenna with Dual-Tuned Mode of Liquid Crystal Material
Sensors, 2023 In this study, a dual-tuned mode of liquid crystal (LC) material was proposed and adopted on reconfigurable metamaterial antennas to expand the fixed-frequency beam-steering range.
Shuang Ma +3 more
doaj +1 more source
Design of controlled RF switch for beam steering antenna array
, 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 +3 more
core +1 more source
Review on fixed-frequency beam steering for leaky wave antenna
, 2019 This paper aims to survey the efforts of researchers in response to the novel and effective technology of control radiation pattern at a fixed frequency for leaky wave antenna (LWA), map the research landscape from the literature onto coherent taxonomy ...
Zakaria, Z.; Universiti Teknikal Malaysia Melaka (UTeM) +4 more
core +1 more source
Beam-steering accuracy and polarisation agility in near-field antenna systems
, 2022 With a substantial part of the world’s population still not connected to the internet, satellite-on-the-move (SOTM) communication is the choice of connectivity in regions where terrestrial communication systems are not available.
Haider Ali (17005093)
core +1 more source
Multifunctional optofluidic lens with beam steering
Optics Express, 2020 In this paper, we demonstrate a multifunctional optofluidic (MO) lens with beam steering, which is actuated by electrowetting effect. A liquid lens chamber and a liquid prism chamber are stacked to form the MO lens. When the liquid lens chamber is actuated with voltage, the curvature of liquid-liquid interface changes accordingly and the focal length ...
Chao Liu +3 more
openaire +2 more sources
Multiple beam steering using dynamic zone plates on a micromirror array [PDF]
, 2018 Three dimensional laser beam steering of focal position has been demonstrated using a single optical device – a DMD micro-mirror array. Laser beam focus position is controlled using dynamically adjustable zone plates.
Benton, David
core +1 more source
Multi-Beam Steering for 6G Communications Based on Graphene Metasurfaces
Sensors, 2021 As communication technology is entering the 6G era, a great demand for high-performance devices operating in the terahertz (THz) band has emerged. As an important part of 6G technology, indoor communication requires multi-beam steering and tracking to ...
Huifang Ai +4 more
doaj +1 more source