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dc.creatorAlibakhshikenari, Mohammades_ES
dc.creatorVirdee, Bal S.es_ES
dc.creatorShukla, Panchamkumares_ES
dc.creatorSee, Chan H.es_ES
dc.creatorAbd-Alhameed, Raedes_ES
dc.creatorKhalily, Mohsenes_ES
dc.creatorFalcone Lanas, Francisco Javieres_ES
dc.creatorLimiti, Ernestoes_ES
dc.identifier.issn0048-6604 (Print)
dc.identifier.issn1944-799X (Electronic)
dc.description.abstractThe paper presents a technique to enhance the isolation between adjacent radiating elements that is common in densely packed antenna arrays. Such antennas provide frequency beam-scanning capability needed in multiple-input multiple-output (MIMO) systems and synthetic aperture radars. The method proposed here uses a metamaterial decoupling slab (MTM-DS), which is located between radiating elements, to suppress mutual coupling between the elements that would otherwise degrade the antenna efficiency and performance in both the transmit and receive mode. The proposed MTM-DS consists of mirror imaged E-shaped slits engraved on a microstrip patch with inductive stub. Measured results confirm over 9–11 GHz with no MTM-DS the average isolation (S12) is −27 dB; however, with MTM-DS the average isolation improves to −38 dB. With this technique the separation between the radiating element can be reduced to 0.66λ0, where λ0 is free space wavelength at 10 GHz. In addition, with this technique there is 15% improvement in operating bandwidth. At frequencies of high impedance match of 9.95 and 10.63 GHz the gain is 4.52 and 5.40 dBi, respectively. Furthermore, the technique eliminates poor front-to-back ratio encountered in other decoupling methods. MTM-DS is also relatively simple to implement. Assuming adequate space is available between adjacent radiators the MTM-DS can be fixed retrospectively on existing antenna arrays, which makes the proposed method versatile. ©2018. American Geophysical Union. All Rights Reserved.en
dc.description.sponsorshipThis work is partially supported byInnovation Programme under grant agreement H2020-MSCA-ITN-2016SECRET-722424 and the financialsupport from the UK Engineering and Physical Sciences Research Council (EPSRC) under grant EP/E022936/1. The authors confirm that there is no relevant domain or general repository for the data. The authors have arranged for all data to be contained in the manuscript (not a repository) for reviewers andreaders to access them, and the acknowledgments section affirms this.en
dc.format.extent14 p.
dc.relation.ispartofRadio Science, 53 (11), 1368-1381en
dc.rights©2018. American Geophysical Union. All Rights Reserved.en
dc.subjectAntenna arraysen
dc.subjectFrequency beam scanningen
dc.subjectMetamaterial decoupling slab (MTM-DS)en
dc.subjectMultiple-input multiple-output (MIMO) systemsen
dc.subjectSynthetic aperture radarsen
dc.titleInteraction between closely packed array antenna elements using meta-surface for applications such as MIMO systems and synthetic aperture radarsen
dc.typeArtículo / Artikuluaes
dc.contributor.departmentIngeniería Eléctrica, Electrónica y de Comunicaciónes_ES
dc.contributor.departmentIngeniaritza Elektrikoa, Elektronikoaren eta Telekomunikazio Ingeniaritzareneu
dc.rights.accessRightsAcceso abierto / Sarbide irekiaes
dc.relation.projectIDinfo:eu-repo/grantAgreement/European Commission/Horizon 2020 Framework Programme/722424en
dc.type.versionVersión publicada / Argitaratu den bertsioaes

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El Repositorio ha recibido la ayuda de la Fundación Española para la Ciencia y la Tecnología para la realización de actividades en el ámbito del fomento de la investigación científica de excelencia, en la Línea 2. Repositorios institucionales (convocatoria 2020-2021).
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