Results 11 to 20 of about 302,217 (218)
Neural Network Characterization of Reflectarray Antennas [PDF]
International Journal of Antennas and Propagation, 2012 An efficient artificial neural network (ANN) approach for the modeling of reflectarray elementary components is introduced to improve the numerical efficiency of the different phases of the antenna design and optimization procedure, without loss in accuracy.
A. Freni +2 more
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Resonant Elements for Tunable Reflectarray Antenna Design [PDF]
International Journal of Antennas and Propagation, 2012 This paper presents an accurate analysis of different configurations of reflectarray resonant elements that can be used for the design of passive and tunable reflectarrays.
M. Y. Ismail, M. Inam
doaj +2 more sources
Engineering Science and Technology, an International Journal, 2020 An X-band high-power microwave antenna with arbitrarily (elliptical) polarization is proposed and investigated in this paper. The proposed antenna is founded on a reflectarray composed of printed elements and excited by the microwave energy in the ...
Sahar Abdi Tazehabadi, Shahrokh Jam
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A Reflectarray Antenna Using Hexagonal Lattice With Enhanced Beam Steering Capability
IEEE Access, 2019 This paper presents a novel reflectarray antenna with enhanced beam steering capability. The reflectarray antenna is based on the hexagonal distribution of the unit cells on the antenna surface.
Orcun Kiris, Kagan Topalli, Mehmet Unlu
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An Active Reconfigurable Reflectarray Antenna [PDF]
, 2010 This thesis focuses on a type of antenna known as the reflectarray antenna. In particular, it looks at the design of an active reconfigurable reflectarray antenna, which has not received much attention in the reflectarray community.
Kishor, Krishna
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High-Efficiency Dielectric Reflectarray Antennas With Ultra-Wideband Characteristics
IEEE Access, 2021 In this study, a K-band offset dielectric reflectarray antenna, having high aperture efficiency and ultra-wideband characteristics, was designed. A column-type dielectric unit cell was employed for the dielectric reflectarray elements.
Eun-Cheol Choi, Sangwook Nam
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Reflectarray Antennas printed on convex surfaces [PDF]
2015 International Conference on Electromagnetics in Advanced Applications (ICEAA), 2015 The characteristics of Reflectarray Antennas printed on convex curved surfaces are discussed in this paper. In particular, results will be presented on the radiation performances of Reflectarrays designed to fit cylinders with different radii of curvature, and with different types of radiating elements.
Bui Van H.a. +4 more
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Orbital Angular Momentum (OAM) Antennas via Mode Combining and Canceling in Near-field
Scientific Reports, 2017 Orbital angular momentum (OAM) mode combining and canceling in the near-field was investigated using a Cassegrain dual-reflectarray antenna composed of multiple microstrip patches on the main and sub-reflectarrays.
Woo Jin Byun +2 more
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IEEE Access, 2020 In this study, unwanted additional resonances are analyzed and a method is developed to eliminate them for wideband offset dual reflectarray antenna at sub-millimeter waves.
Eun-Cheol Choi, Sangwook Nam
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IEEE Access, 2023 This paper presents a dual-band metal-only antenna that operates at 20 and 40 GHz. The unit cell consists of a square waveguide with short circuit termination and a square metallic block in the center. Its performance is evaluated and analyzed in detail.
Zhihang An +4 more
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