{"id":"https://openalex.org/W2934032383","doi":"https://doi.org/10.1109/access.2019.2909313","title":"A Reflectarray Antenna Using Hexagonal Lattice With Enhanced Beam Steering Capability","display_name":"A Reflectarray Antenna Using Hexagonal Lattice With Enhanced Beam Steering Capability","publication_year":2019,"publication_date":"2019-01-01","ids":{"openalex":"https://openalex.org/W2934032383","doi":"https://doi.org/10.1109/access.2019.2909313","mag":"2934032383"},"language":"en","primary_location":{"id":"doi:10.1109/access.2019.2909313","doi":"https://doi.org/10.1109/access.2019.2909313","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2019.2909313","pdf_url":"https://ieeexplore.ieee.org/ielx7/6287639/8600701/08681448.pdf","source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["anvur-scientific","cwts-core","doaj","jufo-1","ki-jl-1","norway-1","oarl","poland-100","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Access","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://ieeexplore.ieee.org/ielx7/6287639/8600701/08681448.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5005701918","display_name":"Or\u00e7un Kiri\u015f","orcid":"https://orcid.org/0000-0001-7392-0949","observed_orcids":["https://orcid.org/0000-0001-7392-0949"]},"institutions":[{"id":"https://openalex.org/I198068145","display_name":"T\u00fcrkiye Bilimsel ve Teknolojik Ara\u015ft\u0131rma Kurumu","ror":"https://ror.org/04w9kkr77","country_code":"TR","type":"government","lineage":["https://openalex.org/I198068145"]}],"countries":["TR"],"is_corresponding":false,"raw_author_name":"Orcun Kiris","raw_affiliation_strings":["TUBITAK Space Technologies Research Institute, Ankara, Turkey"],"raw_orcid":"https://orcid.org/0000-0001-7392-0949","affiliations":[{"raw_affiliation_string":"TUBITAK Space Technologies Research Institute, Ankara, Turkey","institution_ids":["https://openalex.org/I198068145"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5057171988","display_name":"Ka\u011fan Topall\u0131","orcid":"https://orcid.org/0000-0002-4020-5751","observed_orcids":["https://orcid.org/0000-0002-4020-5751"]},"institutions":[{"id":"https://openalex.org/I198068145","display_name":"T\u00fcrkiye Bilimsel ve Teknolojik Ara\u015ft\u0131rma Kurumu","ror":"https://ror.org/04w9kkr77","country_code":"TR","type":"government","lineage":["https://openalex.org/I198068145"]}],"countries":["TR"],"is_corresponding":false,"raw_author_name":"Kagan Topalli","raw_affiliation_strings":["TUBITAK Space Technologies Research Institute, Ankara, Turkey"],"raw_orcid":"https://orcid.org/0000-0002-4020-5751","affiliations":[{"raw_affiliation_string":"TUBITAK Space Technologies Research Institute, Ankara, Turkey","institution_ids":["https://openalex.org/I198068145"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5081981773","display_name":"Mehmet \u00dcnl\u00fc","orcid":"https://orcid.org/0000-0002-6594-0904","observed_orcids":["https://orcid.org/0000-0002-6594-0904"]},"institutions":[{"id":"https://openalex.org/I13236232","display_name":"TOBB University of Economics and Technology","ror":"https://ror.org/03ewx7v96","country_code":"TR","type":"education","lineage":["https://openalex.org/I13236232"]}],"countries":["TR"],"is_corresponding":false,"raw_author_name":"Mehmet Unlu","raw_affiliation_strings":["Department of Electrical and Electronics Engineering, TOBB University of Economics and Technology, Ankara, Turkey"],"raw_orcid":"https://orcid.org/0000-0002-6594-0904","affiliations":[{"raw_affiliation_string":"Department of Electrical and Electronics Engineering, TOBB University of Economics and Technology, Ankara, Turkey","institution_ids":["https://openalex.org/I13236232"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":1750,"currency":"USD","value_usd":1750},"apc_paid":{"value":1750,"currency":"USD","value_usd":1750},"fwci":0.9933,"has_fulltext":true,"cited_by_count":25,"citation_normalized_percentile":{"value":0.73164616,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":95,"max":98},"biblio":{"volume":"7","issue":null,"first_page":"45526","last_page":"45532"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11383","display_name":"Advanced Antenna and Metasurface Technologies","score":0.9980000257492065,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T11383","display_name":"Advanced Antenna and Metasurface Technologies","score":0.9980000257492065,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10069","display_name":"Antenna Design and Analysis","score":0.001500000013038516,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11946","display_name":"Antenna Design and Optimization","score":9.999999747378752e-05,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/reflectarray-antenna","display_name":"reflectarray antenna","score":0.9990000128746033},{"id":"https://openalex.org/keywords/hexagonal-lattice","display_name":"hexagonal lattice","score":0.9089999794960022},{"id":"https://openalex.org/keywords/beam-steering","display_name":"beam steering","score":0.9760000109672546},{"id":"https://openalex.org/keywords/grating-lobe-suppression","display_name":"grating lobe suppression","score":0.9399999976158142},{"id":"https://openalex.org/keywords/element-spacing","display_name":"element spacing","score":0.8289999961853027},{"id":"https://openalex.org/keywords/square-lattice","display_name":"square lattice","score":0.6949999928474426},{"id":"https://openalex.org/keywords/satellite-communication","display_name":"satellite communication","score":0.7369999885559082},{"id":"https://openalex.org/keywords/5g","display_name":"5G","score":0.8130000233650208}],"concepts":[{"id":"https://openalex.org/C143148639","wikidata":"https://www.wikidata.org/wiki/Q4876192","display_name":"Beam steering","level":3,"score":0.7641518115997314},{"id":"https://openalex.org/C128765274","wikidata":"https://www.wikidata.org/wiki/Q663314","display_name":"Hexagonal crystal system","level":2,"score":0.712249219417572},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.6027041077613831},{"id":"https://openalex.org/C184720557","wikidata":"https://www.wikidata.org/wiki/Q7825049","display_name":"Topology (electrical circuits)","level":2,"score":0.5702011585235596},{"id":"https://openalex.org/C90626534","wikidata":"https://www.wikidata.org/wiki/Q4523381","display_name":"Hexagonal lattice","level":3,"score":0.5349702835083008},{"id":"https://openalex.org/C64671776","wikidata":"https://www.wikidata.org/wiki/Q769152","display_name":"Directional antenna","level":3,"score":0.48263177275657654},{"id":"https://openalex.org/C199845137","wikidata":"https://www.wikidata.org/wiki/Q145490","display_name":"Network topology","level":2,"score":0.4751543700695038},{"id":"https://openalex.org/C2781204021","wikidata":"https://www.wikidata.org/wiki/Q6497091","display_name":"Lattice (music)","level":2,"score":0.4293254017829895},{"id":"https://openalex.org/C168834538","wikidata":"https://www.wikidata.org/wiki/Q3705329","display_name":"Beam (structure)","level":2,"score":0.4255255162715912},{"id":"https://openalex.org/C181856588","wikidata":"https://www.wikidata.org/wiki/Q2040092","display_name":"Side lobe","level":3,"score":0.42441526055336},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.420783668756485},{"id":"https://openalex.org/C2776257435","wikidata":"https://www.wikidata.org/wiki/Q1576430","display_name":"Bandwidth (computing)","level":2,"score":0.4170873761177063},{"id":"https://openalex.org/C170349913","wikidata":"https://www.wikidata.org/wiki/Q13402882","display_name":"Microstrip antenna","level":3,"score":0.41089433431625366},{"id":"https://openalex.org/C21822782","wikidata":"https://www.wikidata.org/wiki/Q131214","display_name":"Antenna (radio)","level":2,"score":0.4062862992286682},{"id":"https://openalex.org/C49040817","wikidata":"https://www.wikidata.org/wiki/Q193091","display_name":"Optoelectronics","level":1,"score":0.389691025018692},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.31187063455581665},{"id":"https://openalex.org/C24890656","wikidata":"https://www.wikidata.org/wiki/Q82811","display_name":"Acoustics","level":1,"score":0.21435844898223877},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.1860647201538086},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.12991982698440552},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.12484347820281982},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.10095563530921936},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0},{"id":"https://openalex.org/C8010536","wikidata":"https://www.wikidata.org/wiki/Q160398","display_name":"Crystallography","level":1,"score":0.0},{"id":"https://openalex.org/C155355069","wikidata":"https://www.wikidata.org/wiki/Q575224","display_name":"Antiferromagnetism","level":2,"score":0.0},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.0},{"id":"https://openalex.org/C26873012","wikidata":"https://www.wikidata.org/wiki/Q214781","display_name":"Condensed matter physics","level":1,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.1109/access.2019.2909313","doi":"https://doi.org/10.1109/access.2019.2909313","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2019.2909313","pdf_url":"https://ieeexplore.ieee.org/ielx7/6287639/8600701/08681448.pdf","source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["anvur-scientific","cwts-core","doaj","jufo-1","ki-jl-1","norway-1","oarl","poland-100","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Access","raw_type":"journal-article"},{"id":"pmh:f7b039e9-11a5-47fc-b7b2-75104488a662","doi":null,"is_oa":true,"landing_page_url":"https://avesis.aybu.edu.tr/publication/details/f7b039e9-11a5-47fc-b7b2-75104488a662/oai","pdf_url":null,"source":{"id":"https://openalex.org/S7407055213","display_name":"AYBU AVESIS","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"info:eu-repo/semantics/article"},{"id":"pmh:oai:doaj.org/article:2729f262ee0c4412a97c461d3799473d","doi":null,"is_oa":true,"landing_page_url":"https://doaj.org/article/2729f262ee0c4412a97c461d3799473d","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"IEEE Access, Vol 7, Pp 45526-45532 (2019)","raw_type":"article"}],"best_oa_location":{"id":"doi:10.1109/access.2019.2909313","doi":"https://doi.org/10.1109/access.2019.2909313","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2019.2909313","pdf_url":"https://ieeexplore.ieee.org/ielx7/6287639/8600701/08681448.pdf","source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"is_core":true,"listed_in":["anvur-scientific","cwts-core","doaj","jufo-1","ki-jl-1","norway-1","oarl","poland-100","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Access","raw_type":"journal-article"},"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[{"id":"https://openalex.org/F4320322626","display_name":"T\u00fcrkiye Bilimsel ve Teknolojik Ara\u015ft\u0131rma Kurumu","ror":"https://ror.org/04w9kkr77"}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2934032383.pdf","grobid_xml":"https://content.openalex.org/works/W2934032383.grobid-xml"},"referenced_works_count":26,"referenced_works":["https://openalex.org/W1506302444","https://openalex.org/W1567826352","https://openalex.org/W1705595074","https://openalex.org/W1964545747","https://openalex.org/W1983877861","https://openalex.org/W1997882378","https://openalex.org/W1999050308","https://openalex.org/W2024685667","https://openalex.org/W2039205985","https://openalex.org/W2083562751","https://openalex.org/W2086662056","https://openalex.org/W2088253329","https://openalex.org/W2094792372","https://openalex.org/W2101926712","https://openalex.org/W2108370326","https://openalex.org/W2136807635","https://openalex.org/W2144062105","https://openalex.org/W2145722032","https://openalex.org/W2285554365","https://openalex.org/W2601717995","https://openalex.org/W2766582905","https://openalex.org/W2768987306","https://openalex.org/W2780765973","https://openalex.org/W2795326606","https://openalex.org/W6633955379","https://openalex.org/W6821277013"],"related_works":["https://openalex.org/W2766582905","https://openalex.org/W2982447158","https://openalex.org/W2910803898","https://openalex.org/W2112919787","https://openalex.org/W2117028571","https://openalex.org/W4415593005","https://openalex.org/W4407788138","https://openalex.org/W2979110841","https://openalex.org/W4214538572","https://openalex.org/W4415592929"],"abstract_inverted_index":{"This":[0,140],"paper":[1],"presents":[2],"a":[3,137,144,153],"novel":[4],"reflectarray":[5,13,59,70,101],"antenna":[6,14,27],"with":[7,79,108],"enhanced":[8],"beam":[9,54,123,165],"steering":[10,55,124,166],"capability.":[11,167],"The":[12,29,95],"is":[15],"based":[16],"on":[17,25],"the":[18,22,26,33,36,40,45,48,53,58,63,98,109,112,115,122,148],"hexagonal":[19,30,76,118,138],"distribution":[20],"of":[21,39,47,57,69,82,97,114],"unit":[23,41],"cells":[24],"surface.":[28],"topology":[31],"changes":[32],"angle":[34],"between":[35],"principal":[37],"axes":[38],"cell":[42],"distribution,":[43],"preventing":[44],"formation":[46],"grating":[49],"lobe,":[50],"and":[51,75,84,90,111,117,158],"improving":[52],"capability":[56,125],"antenna.":[60],"To":[61],"verify":[62],"proposed":[64],"idea,":[65],"two":[66],"different":[67],"sets":[68],"antennas,":[71],"which":[72],"includes":[73],"square":[74,116],"lattice":[77],"topologies":[78,119],"inter-element":[80,133],"spacings":[81],"0.52\u03bb":[83],"0.6\u03bb,":[85],"have":[86],"been":[87],"designed,":[88],"fabricated,":[89],"measured":[91],"at":[92],"8.23":[93],"GHz.":[94],"measurements":[96],"all":[99],"fabricated":[100],"antennas":[102],"are":[103],"in":[104,147],"very":[105],"good":[106],"agreement":[107],"simulations,":[110],"comparison":[113],"show":[120],"that":[121,143,162],"can":[126,151],"be":[127,152],"improved":[128],"by":[129,135],"50%":[130],"for":[131,156],"0.6\u03bb":[132],"spacing":[134],"using":[136],"topology.":[139],"improvement":[141],"shows":[142],"simple":[145],"modification":[146],"array":[149],"configuration":[150],"viable":[154],"solution":[155],"satellite":[157],"5G":[159],"communication":[160],"applications":[161],"require":[163],"increased":[164]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":6},{"year":2024,"cited_by_count":3},{"year":2023,"cited_by_count":3},{"year":2022,"cited_by_count":6},{"year":2021,"cited_by_count":5}],"updated_date":"2026-10-16T09:59:22.235173","created_date":"2019-04-11T00:00:00"}