Coupled Array of Diverse Elements for Wideband High Spherical Coverage

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorChen, Quangangen_US
dc.contributor.authorKutinlahti, Veli Pekkaen_US
dc.contributor.authorHaarla, Jaakkoen_US
dc.contributor.authorLehtovuori, Anuen_US
dc.contributor.authorViikari, Villeen_US
dc.contributor.departmentDepartment of Electronics and Nanoengineeringen
dc.contributor.groupauthorVille Viikari Groupen
dc.date.accessioned2023-09-20T06:24:54Z
dc.date.available2023-09-20T06:24:54Z
dc.date.issued2023en_US
dc.descriptionPublisher Copyright: Author
dc.description.abstractWe propose a flexible cluster array concept utilizing diverse antenna elements and the mutual coupling among them to improve the spherical coverage. This innovative approach can not only enhance the impedance matching but also improve the beamforming performance across a wide frequency band by adjusting excitation amplitudes and phases. Equations are derived to achieve specific objectives such as minimizing the total active reflection coefficient or maximizing the realized gain of an antenna array. To validate the concept, we employ a cluster array consisting of eight non-identical patch antenna elements with strong mutual coupling. When compared to a conventional four-element patch antenna array of the same size, the cluster array exhibits high beamforming capability over a wider frequency band. Simulated and measured results confirm that the operational frequency band can be extended from 24.5-26.5 GHz to 24.5-29.5 GHz, while maintaining a spherical coverage of over 6 dBi at the 50%-tile cumulative distribution function (CDF) of maximum realized gain.en
dc.description.versionPeer revieweden
dc.format.extent9
dc.format.extent815-823
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationChen, Q, Kutinlahti, V P, Haarla, J, Lehtovuori, A & Viikari, V 2023, ' Coupled Array of Diverse Elements for Wideband High Spherical Coverage ', IEEE Open Journal of Antennas and Propagation, vol. 4, pp. 815-823 . https://doi.org/10.1109/OJAP.2023.3303929en
dc.identifier.doi10.1109/OJAP.2023.3303929en_US
dc.identifier.issn2637-6431
dc.identifier.otherPURE UUID: fe889bcc-36c1-405a-bcec-ee34b80e88a4en_US
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/fe889bcc-36c1-405a-bcec-ee34b80e88a4en_US
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85167775462&partnerID=8YFLogxKen_US
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/122216491/Coupled_Array_of_Diverse_Elements_for_Wideband_High_Spherical_Coverage.pdfen_US
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/123665
dc.identifier.urnURN:NBN:fi:aalto-202309206023
dc.language.isoenen
dc.publisherIEEE
dc.relation.ispartofseriesIEEE Open Journal of Antennas and Propagationen
dc.relation.ispartofseriesVolume 4en
dc.rightsopenAccessen
dc.subject.keywordAntenna arraysen_US
dc.subject.keywordAntennasen_US
dc.subject.keywordArray signal processingen_US
dc.subject.keywordbeamformingen_US
dc.subject.keywordBroadband antennasen_US
dc.subject.keywordCDFen_US
dc.subject.keywordmm-waveen_US
dc.subject.keywordMultiport antennaen_US
dc.subject.keywordMutual couplingen_US
dc.subject.keywordmutual couplingen_US
dc.subject.keywordreconfigurable antennaen_US
dc.subject.keywordReflection coefficienten_US
dc.subject.keywordReflector antennasen_US
dc.titleCoupled Array of Diverse Elements for Wideband High Spherical Coverageen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionpublishedVersion

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