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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.authorAli, Ammar H.
dc.contributor.authorFalcone, F.
dc.contributor.authorLimiti, E.
dc.date.accessioned2020-10-22T09:14:57Z
dc.date.available2020-10-22T09:14:57Z
dc.date.issued2018-11
dc.identifier.citationAlibakhshikenari M, Virdee BS, See CH et al (2018) Study on isolation improvement between closely-packed patch antenna arrays based on fractal metamaterial electromagnetic bandgap structures. IET Microwaves, Antennas & Propagation. 12(14): 2241-2247.en_US
dc.identifier.urihttp://hdl.handle.net/10454/18131
dc.descriptionYesen_US
dc.description.abstractA decoupling metamaterial (MTM) configuration based on fractal electromagnetic-bandgap (EMBG) structure is shown to significantly enhance isolation between transmitting and receiving antenna elements in a closely-packed patch antenna array. The MTM-EMBG structure is cross-shaped assembly with fractal-shaped slots etched in each arm of the cross. The fractals are composed of four interconnected-`Y-shaped' slots that are separated with an inverted-`T-shaped' slot. The MTM-EMBG structure is placed between the individual patch antennas in a 2 × 2 antenna array. Measured results show the average inter-element isolation improvement in the frequency band of interest is 17, 37 and 17 dB between radiation elements #1 & #2, #1 & #3, and #1 & #4, respectively. With the proposed method there is no need for using metallic-via-holes. The proposed array covers the frequency range of 8-9.25 GHz for X-band applications, which corresponds to a fractional-bandwidth of 14.5%. With the proposed method the edge-to-edge gap between adjacent antenna elements can be reduced to 0.5λ 0 with no degradation in the antenna array's radiation gain pattern. Across the array's operating band, the measured gain varies between 4 and 7 dBi, and the radiation efficiency varies from 74.22 and 88.71%. The proposed method is applicable in the implementation of closely-packed patch antenna arrays used in SAR and MIMO systems.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/10.1049/iet-map.2018.5103en_US
dc.rights© The Institution of Engineering and Technology 2018. Reproduced in accordance with the publisher's self-archiving policy.en_US
dc.subjectFractal, mutual couplingen_US
dc.subjectElectromagnetic bandgap (EMBG)en_US
dc.subjectMetamaterialen_US
dc.subjectMIMOen_US
dc.subjectSynthetic aperture radar (SAR)en_US
dc.titleStudy on isolation improvement between closely-packed patch antenna arrays based on fractal metamaterial electromagnetic bandgap structuresen_US
dc.status.refereedYesen_US
dc.date.Accepted2018-07-17
dc.date.application2018-10-11
dc.typeArticleen_US
dc.type.versionAccepted manuscripten_US
refterms.dateFOA2020-10-22T09:15:34Z


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