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dc.contributor.authorAlibakhshikenari, M.
dc.contributor.authorVirdee, B.S.
dc.contributor.authorSee, C.H.
dc.contributor.authorAbd-Alhameed, Raed A.
dc.contributor.authorFalcone, F.
dc.contributor.authorLimiti, E.
dc.date.accessioned2020-10-20T10:54:32Z
dc.date.available2020-10-20T10:54:32Z
dc.date.issued2019-11
dc.identifier.citationAlibakhshikenari M, Virdee BS, See CH et al (2019) Surface wave reduction in antenna arrays using metasurface inclusion in MIMO and SAR systems. Radio Science. 54(11): 1067-1075.en_US
dc.identifier.urihttp://hdl.handle.net/10454/18126
dc.descriptionYesen_US
dc.description.abstractAn effective method is presented for suppressing mutual coupling between adjacent radiating elements which is based on metasurface isolation for MIMO and synthetic aperture radar (SAR) systems. This is achieved by choking surface current waves induced over the patch antenna by inserting a cross-shaped metasurface structure between the radiating elements. Each arm of the cross-shaped structure constituting the metasurface is etched with meander-line slot (MLS). Effectiveness of the metasurface is demonstrated for a2×2antenna array that operates over six frequency sub-bands in X, Ku and K-bands. With the proposed technique, the maximum improvement achieved in attenuating mutual coupling between neighbouring antennas is: 8.5 dB (8-8.4 GHz), 28 dB (9.6-10.8 GHz), 27 dB (11.7-12.6 GHz), 7.5 dB (13.4-14.2 GHz), 13 dB (16.5-16.8 GHz) and 22.5 dB (18.5-20.3 GHz). Furthermore, with the proposed technique (i) minimum center-to-center separation between the radiating elements can be reduced to 0.26λ0, where λ0 is 8.0 GHz; (ii) use of ground-plane or defected ground structures are unnecessary; (iii) use of short-circuited via-holes are avoided; (iv) it eliminates the issue with poor front-to-back ratio; and (v) it can be applied to existing arrays retrospectively.en_US
dc.description.sponsorshipH2020-MSCA-ITN-2016 SECRET-722424 and the financial support from the UK Engineering and Physical Sciences Research Council (EPSRC) under grant EP/E0/22936/1en_US
dc.language.isoenen_US
dc.relation.isreferencedbyhttps://doi.org/10.1029/2019RS006871en_US
dc.rights©2019. American Geophysical Union. All Rights Reserved. Reproduced in accordance with the publisher's self-archiving policy.en_US
dc.subjectMetasurface isolatoren_US
dc.subjectMIMOen_US
dc.subjectSynthetic-aperture radaren_US
dc.subjectMeander line slot (MLS)en_US
dc.subjectMutual couplingen_US
dc.subjectAntenna arrayen_US
dc.titleSurface wave reduction in antenna arrays using metasurface inclusion for MIMO and SAR systemsen_US
dc.status.refereedYesen_US
dc.date.Accepted2019-10-02
dc.date.application2019-10-19
dc.typeArticleen_US
dc.type.versionAccepted manuscripten_US
refterms.dateFOA2020-10-20T10:54:56Z


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