Results 11 to 20 of about 3,668 (227)
Single-Layer, Multimode OAM Reflectarray Antennas
IEEE Antennas and Wireless Propagation Letters, 2023 In this letter, an innovative ReflectArray (RA) antenna able to radiate in the same direction multiple Orbital Angular Momentum (OAM) modes, is presented: depending on the direction of arrival of the impinging field, the RA radiates a broadside beam carrying on an OAM mode with different index.
Michele Beccaria +2 more
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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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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
doaj +1 more source
Efficient Spectral Domain MoM for the Design of Circularly Polarized Reflectarray Antennas Made of Split Rings [PDF]
, 2019 The method of moments (MoM) in the spectral domain is used for the analysis of the scattering of a plane wave by a multilayered periodic structure containing conducting concentric split rings in the unit cell.
Encinar, José A. +2 more
core +1 more source
Real-time power system dynamic security assessment based on advanced feature selection for decision tree classifiers [PDF]
, 2017 This paper proposed a novel algorithm based on advanced feature selection technique for decision tree (DT) classifier to assess the dynamic security in power system.
Al-Gubri, Qusay, Mohd Ariff, Mohd Aifaa
core +1 more source
IEEE Access, 2020 In this paper, a tightly coupled dipole reflectarray antenna as well as a variant-coupling-capacitance method to improve the antenna aperture efficiency is presented.
Jiayou Wang +3 more
doaj +1 more source
Modified Phoenix cell for microstrip reflectarray antennas [PDF]
2013 IEEE Antennas and Propagation Society International Symposium (APSURSI), 2012 This paper presents a modification on the structure of a recently proposed microstrip reflectarray cell, called Phoenix [4]. Phoenix cell was developed to operate in the X-band frequency range for a linearly polarized microstrip reflectarray antenna.
Ibrahim, Sarah, Hammad, Hany
openaire +2 more sources
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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Approximate Analytical Technique to Design Reflectarray Antenna
Advanced Electromagnetics, 2016 This paper presents an analysis and design for a reflectarray antenna composed of an array of rectangular patches printed on a grounded dielectric slab.
H. M. Yamani +2 more
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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
doaj +1 more source