A comprehensive survey on "Various decoupling mechanisms with focus on metamaterial and metasurface principles applicable to SAR and MIMO antenna systems"
Fecha
2020Autor
Versión
Acceso abierto / Sarbide irekia
Tipo
Artículo / Artikulua
Versión
Versión publicada / Argitaratu den bertsioa
Identificador del proyecto
Impacto
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10.1109/ACCESS.2020.3032826
Resumen
Nowadays synthetic aperture radar (SAR) and multiple-input-multiple-output (MIMO)
antenna systems with the capability to radiate waves in more than one pattern and polarization are playing a
key role in modern telecommunication and radar systems. This is possible with the use of antenna arrays as
they offer advantages of high gain and beamforming capability, which can be utilized for controlli ...
[++]
Nowadays synthetic aperture radar (SAR) and multiple-input-multiple-output (MIMO)
antenna systems with the capability to radiate waves in more than one pattern and polarization are playing a
key role in modern telecommunication and radar systems. This is possible with the use of antenna arrays as
they offer advantages of high gain and beamforming capability, which can be utilized for controlling radiation
pattern for electromagnetic (EM) interference immunity in wireless systems. However, with the growing
demand for compact array antennas, the physical footprint of the arrays needs to be smaller and the consequent
of this is severe degradation in the performance of the array resulting from strong mutual-coupling and
crosstalk effects between adjacent radiating elements. This review presents a detailed systematic and theoretical
study of various mutual-coupling suppression (decoupling) techniques with a strong focus on metamaterial
(MTM) and metasurface (MTS) approaches. While the performance of systems employing antenna
arrays can be enhanced by calibrating out the interferences digitally, however it is more ef cient to apply
decoupling techniques at the antenna itself. Previously various simple and cost-effective approaches have
been demonstrated to effectively suppress unwanted mutual-coupling in arrays. Such techniques include the
use of defected ground structure (DGS), parasitic or slot element, dielectric resonator antenna (DRA), complementary
split-ring resonators (CSRR), decoupling networks, P.I.N or varactor diodes, electromagnetic
bandgap (EBG) structures, etc. In this review, it is shown that the mutual-coupling reduction methods inspired by MTM and MTS concepts can provide a higher level of isolation between neighbouring radiating elements
using easily realizable and cost-effective decoupling con gurations that have negligible consequence on the array's
characteristics such as bandwidth, gain and radiation ef ciency, and physical footprint. [--]
Materias
Decoupling methods,
Metamaterial (MTM),
Metasurface (MTS),
Multiple-input-multiple-output (MIMO),
Synthetic aperture radar (SAR),
Isolation enhancement,
Array antennas
Editor
IEEE
Departamento
Universidad Pública de Navarra. Departamento de Ingeniería Eléctrica, Electrónica y de Comunicación /
Nafarroako Unibertsitate Publikoa. Ingeniaritza Elektrikoa, Elektronikoa eta Telekomunikazio Ingeniaritza Saila /
Universidad Pública de Navarra/Nafarroako Unibertsitate Publikoa. Institute of Smart Cities - ISC
Versión del editor
Entidades Financiadoras
This work was supported in part by the Ministerio de Ciencia, Innovación y Universidades, Gobierno de España (MCIU/AEI/FEDER,UE)
under Grant RTI2018-095499-B-C31, in part by the Innovation Programme under Grant H2020-MSCA-ITN-2016 SECRET-722424, and
in part by the U.K. Engineering and Physical Sciences Research Council (EPSRC) under Grant EP/E022936/1.