Results 81 to 90 of about 4,866 (225)
Design and Characterisation of All‐Dielectric Metasurface Reflector for mmWave Antennas
IET Microwaves, Antennas &Propagation, Volume 19, Issue 1, January/December 2025.This study presents an all‐dielectric artificial magnetic conductor (AMC) operating at 77 GHz with zero‐phase reflection, featuring a −1‐dB reflection bandwidth of 3.6 and 8.2 GHz for ± 45° and ± 90° reflection phases, respectively. Simulation and measurement results validate the design's performance while highlighting discrepancies attributed to ...
Muhammad Uzair +3 more
wiley +1 more source
IEEE Access, 2018 In this paper, a wideband tunable reflectarray consisting of a graphene-based metamaterial structure has been developed to generate an orbital angular momentum (OAM) vortex wave in terahertz.
Yan Shi, Ying Zhang
doaj +1 more source
A novel broadband reflectarray for
, 2021 Vidhyashree Suresh +2 more
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Open Resonator System for Reflectarray Elements Characterization
International Journal of Antennas and Propagation, 2012 An open resonator system is proposed in this work to study the phase behavior of reflectarrays cells. The characterization of the single reflectarray element is performed by assuming a Gaussian plane wave normally incident on an infinite periodic array ...
G. Di Massa, S. Costanzo, O. H. Moreno
doaj +1 more source
Electronics Letters, 1998 A novel folded reflectarray antenna is presented. This antenna combines a twist and focusing reflector concept in a single printed structure. Together with a printed grid, a low profile and high gain antenna results. A test antenna in the 20 GHz range was designed, fabricated and tested.
D. Pilz, W. Menzel
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An optical reflectarray nanoantenna: The concept and design
Optics Express, 2009 This paper presents the concept and design of a reflectarray nanoantenna at optical frequencies whose elements are nano-sized concentric spherical particles with the core made of ordinary dielectrics and the shell made of a plasmonic material. Modeling approaches based on finite difference time domain (FDTD) numerical method and dipole-modes scattering
Akram, Ahmadi +2 more
openaire +2 more sources
Double split ring slot FSS reflectarray for difference pattern generation [PDF]
, 2013 Dmitry Zelenchuk, V.F. Fusco
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Bandwidth enhancement of aperture-coupled reflectarrays
Electronics Letters, 2006 An aperture-coupled reflectarray element with a reduced inter-element spacing is proposed. Bandwidth improvements are demonstrated by a smooth and similar behaviour of the phase design curves when properly decreasing the unit cell size. Experimental validations are reported for the measured radiation patterns of two reflectarray propotypes with ...
COSTANZO, Sandra +2 more
openaire +2 more sources
Dual‐Band Reflectarray Antennas Using Integrated Resonant and Non‐Resonant Natures of Metallic Waveguide Elements at Millimeter Wave Frequencies [PDF]
, 2023 Hsi‐Tseng Chou +5 more
openalex +1 more source
DRA REFLECTARRAY UNIT ELEMENTS WITH THIN UNDER-LOADING PARALLEL SLOTS [PDF]
, 2014 Shin-Rou Lee +2 more
openalex +1 more source