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dc.contributor.authorAlibakhshikenari, M.*
dc.contributor.authorVirdee, B.S.*
dc.contributor.authorShukla, P.*
dc.contributor.authorSee, C.H.*
dc.contributor.authorAbd-Alhameed, Raed A.*
dc.contributor.authorKhalily, M.*
dc.contributor.authorFalcone, F.*
dc.contributor.authorLimiti, E.*
dc.date.accessioned2018-10-30T12:43:15Z
dc.date.available2018-10-30T12:43:15Z
dc.date.issued2018-11
dc.identifier.citationAlibakhshikenari M, Virdee BS, Shukla P et al (2018) Interaction between closely packed array antenna elements using metasurface for applications such as MIMO systems and synthetic aperture radars. Radio Science. 53(11): 1368-1381.en_US
dc.identifier.urihttp://hdl.handle.net/10454/16635
dc.descriptionYesen_US
dc.description.abstractThe paper presents a technique to enhance the isolation between adjacent radiating elements which 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 (SARs). The method proposed here uses a metamaterial decoupling slab (MTMDS), 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 Eshaped 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 0.66λo, 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 GHz and 10.63 GHz the gain is 4.52 dBi 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.en_US
dc.description.sponsorshipPartially supported by innovation programme under grant agreement H2020-MSCA-ITN-2016 SECRET- 722424 and the financial support from the UK Engineering and Physical Sciences Research Council (EPSRC) under grant EP/E022936/1.en_US
dc.language.isoenen_US
dc.relation.isreferencedbyhttps://doi.org/10.1029/2018RS006533en_US
dc.rightsAn edited version of this paper was published by AGU. Copyright (2018) American Geophysical Union. Alibakhshikenari et al. (2018), 'Interaction between closely packed array antenna elements using metasurface for applications such as MIMO systems and synthetic aperture radars', Radio Science, Volume number, Citation number, DOI - 10.1029/2018RS006533 . To view the published open abstract, go to http://dx.doi.org and enter the DOI.en_US
dc.subjectMetamaterial decoupling slab (MTM-DS)en_US
dc.subjectAntenna arraysen_US
dc.subjectFrequency beam-scanningen_US
dc.subjectSynthetic aperture radars (SAR)en_US
dc.subjectMultiple-input multiple-output (MIMO) systemsen_US
dc.titleInteraction between closely packed array antenna elements using metasurface for applications such as MIMO systems and synthetic aperture radarsen_US
dc.status.refereedYesen_US
dc.date.Accepted2018-10-12
dc.date.application2018-10-18
dc.typeArticleen_US
dc.type.versionAccepted Manuscripten_US
refterms.dateFOA2018-10-30T12:43:15Z


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