Modeling and synthesis of circular‐sectoral arrays of log‐periodic antennas using multilevel fast multipole algorithm and genetic algorithms

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buir.contributor.authorGürel, Levent
buir.contributor.authorErgül, Özgür
dc.citation.epageRS3018-1en_US
dc.citation.issueNumber3en_US
dc.citation.spageRS3018-10en_US
dc.citation.volumeNumber42en_US
dc.contributor.authorErgül, Özgüren_US
dc.contributor.authorGürel, Leventen_US
dc.date.accessioned2019-02-11T08:14:04Z
dc.date.available2019-02-11T08:14:04Z
dc.date.issued2007-06-17en_US
dc.departmentComputational Electromagnetics Research Center (BiLCEM)en_US
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.description.abstractCircular‐sectoral arrays of log‐periodic (LP) antennas are presented for frequency‐independent operation and beam‐steering capability. Specifically, nonplanar trapezoidal tooth LP antennas are considered in a circular array configuration, where closely spaced antennas occupy a sector of the circle. Electromagnetic interactions of the array elements, each of which is a complicated LP antenna structure, are rigorously computed with the multilevel fast multipole algorithm (MLFMA). Genetic algorithms (GAs) are also employed in combination with MLFMA for synthesis and design purposes. By optimizing the excitations of the array elements via GAs, beam‐steering ability is achieved in addition to the broadband (nearly frequency‐independent) characteristics of the designed arrays. Computational results are presented to demonstrate the important properties of LP arrays.en_US
dc.description.provenanceSubmitted by Elsa Bitri (elsabitri@bilkent.edu.tr) on 2019-02-11T08:14:04Z No. of bitstreams: 1 Modeling and synthesis of circular-sectoral arrays of log-periodic antennas using multilevel fast multipole algorithm and genetic algorithms .pdf: 680809 bytes, checksum: 4bd9f7e1b27822ed522e9baa0d367692 (MD5)en
dc.description.provenanceMade available in DSpace on 2019-02-11T08:14:04Z (GMT). No. of bitstreams: 1 Modeling and synthesis of circular-sectoral arrays of log-periodic antennas using multilevel fast multipole algorithm and genetic algorithms .pdf: 680809 bytes, checksum: 4bd9f7e1b27822ed522e9baa0d367692 (MD5) Previous issue date: 2007-06-17en
dc.identifier.doi10.1029/2006RS003567en_US
dc.identifier.eissn1944-799X
dc.identifier.issn0048-6604
dc.identifier.urihttp://hdl.handle.net/11693/49206
dc.language.isoEnglishen_US
dc.publisherWiley-Blackwell Publishing, Inc.en_US
dc.relation.isversionofhttps://doi.org/10.1029/2006RS003567en_US
dc.source.titleRadio Scienceen_US
dc.titleModeling and synthesis of circular‐sectoral arrays of log‐periodic antennas using multilevel fast multipole algorithm and genetic algorithmsen_US
dc.typeArticleen_US

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