{"id":"https://openalex.org/W2929447624","doi":"https://doi.org/10.1109/tii.2019.2908217","title":"Transmitter Coils Design for Free-Positioning Omnidirectional Wireless Power Transfer System","display_name":"Transmitter Coils Design for Free-Positioning Omnidirectional Wireless Power Transfer System","publication_year":2019,"publication_date":"2019-03-29","ids":{"openalex":"https://openalex.org/W2929447624","doi":"https://doi.org/10.1109/tii.2019.2908217","mag":"2929447624"},"language":"en","primary_location":{"id":"doi:10.1109/tii.2019.2908217","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tii.2019.2908217","pdf_url":null,"source":{"id":"https://openalex.org/S184777250","display_name":"IEEE Transactions on Industrial Informatics","issn_l":"1551-3203","issn":["1551-3203","1941-0050"],"is_oa":false,"is_in_doaj":false,"is_core":true,"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 Transactions on Industrial Informatics","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5026699253","display_name":"Junjie Feng","orcid":"https://orcid.org/0000-0003-2147-2237"},"institutions":[{"id":"https://openalex.org/I859038795","display_name":"Virginia Tech","ror":"https://ror.org/02smfhw86","country_code":"US","type":"education","lineage":["https://openalex.org/I859038795"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Junjie Feng","raw_affiliation_strings":["Center for Power Electronics Systems, Virginia Tech, Blacksburg, VA, USA"],"raw_orcid":"https://orcid.org/0000-0003-2147-2237","affiliations":[{"raw_affiliation_string":"Center for Power Electronics Systems, Virginia Tech, Blacksburg, VA, USA","institution_ids":["https://openalex.org/I859038795"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100429981","display_name":"Qiang Li","orcid":"https://orcid.org/0000-0002-5378-1424"},"institutions":[{"id":"https://openalex.org/I859038795","display_name":"Virginia Tech","ror":"https://ror.org/02smfhw86","country_code":"US","type":"education","lineage":["https://openalex.org/I859038795"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Qiang Li","raw_affiliation_strings":["Center for Power Electronics Systems, Virginia Tech, Blacksburg, VA, USA"],"raw_orcid":"https://orcid.org/0000-0002-5378-1424","affiliations":[{"raw_affiliation_string":"Center for Power Electronics Systems, Virginia Tech, Blacksburg, VA, USA","institution_ids":["https://openalex.org/I859038795"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5058527846","display_name":"Fred C. Lee","orcid":"https://orcid.org/0000-0002-2902-9451"},"institutions":[{"id":"https://openalex.org/I859038795","display_name":"Virginia Tech","ror":"https://ror.org/02smfhw86","country_code":"US","type":"education","lineage":["https://openalex.org/I859038795"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Fred C. Lee","raw_affiliation_strings":["Center for Power Electronics Systems, Virginia Tech, Blacksburg, VA, USA"],"raw_orcid":"https://orcid.org/0000-0002-2902-9451","affiliations":[{"raw_affiliation_string":"Center for Power Electronics Systems, Virginia Tech, Blacksburg, VA, USA","institution_ids":["https://openalex.org/I859038795"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5101626248","display_name":"Minfan Fu","orcid":"https://orcid.org/0000-0002-1642-6626"},"institutions":[{"id":"https://openalex.org/I859038795","display_name":"Virginia Tech","ror":"https://ror.org/02smfhw86","country_code":"US","type":"education","lineage":["https://openalex.org/I859038795"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Minfan Fu","raw_affiliation_strings":["Center for Power Electronics Systems, Virginia Tech, Blacksburg, VA, USA"],"raw_orcid":"https://orcid.org/0000-0002-1642-6626","affiliations":[{"raw_affiliation_string":"Center for Power Electronics Systems, Virginia Tech, Blacksburg, VA, USA","institution_ids":["https://openalex.org/I859038795"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I859038795"],"apc_list":null,"apc_paid":null,"fwci":9.929,"has_fulltext":false,"cited_by_count":181,"citation_normalized_percentile":{"value":0.98651394,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":97,"max":100},"biblio":{"volume":"15","issue":"8","first_page":"4656","last_page":"4664"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11249","display_name":"Wireless Power Transfer Systems","score":1.0,"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/T11249","display_name":"Wireless Power Transfer Systems","score":1.0,"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/T11392","display_name":"Energy Harvesting in Wireless Networks","score":1.0,"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/T11932","display_name":"Wireless Body Area Networks","score":0.9839000105857849,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical 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/wireless-power-transfer","display_name":"Wireless power transfer","score":0.8995507955551147},{"id":"https://openalex.org/keywords/omnidirectional-antenna","display_name":"Omnidirectional antenna","score":0.864245593547821},{"id":"https://openalex.org/keywords/transmitter","display_name":"Transmitter","score":0.781145453453064},{"id":"https://openalex.org/keywords/electromagnetic-coil","display_name":"Electromagnetic coil","score":0.6756757497787476},{"id":"https://openalex.org/keywords/electrical-engineering","display_name":"Electrical engineering","score":0.6429473161697388},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.46626052260398865},{"id":"https://openalex.org/keywords/planar","display_name":"Planar","score":0.43165531754493713},{"id":"https://openalex.org/keywords/power","display_name":"Power (physics)","score":0.42267894744873047},{"id":"https://openalex.org/keywords/antenna","display_name":"Antenna (radio)","score":0.4084179997444153},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.39203381538391113},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.36442098021507263},{"id":"https://openalex.org/keywords/acoustics","display_name":"Acoustics","score":0.36436885595321655},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.3475555181503296},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.20166319608688354},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.17544615268707275},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.15760678052902222}],"concepts":[{"id":"https://openalex.org/C2779423816","wikidata":"https://www.wikidata.org/wiki/Q6856398","display_name":"Wireless power transfer","level":3,"score":0.8995507955551147},{"id":"https://openalex.org/C24027999","wikidata":"https://www.wikidata.org/wiki/Q2176348","display_name":"Omnidirectional antenna","level":3,"score":0.864245593547821},{"id":"https://openalex.org/C47798520","wikidata":"https://www.wikidata.org/wiki/Q190157","display_name":"Transmitter","level":3,"score":0.781145453453064},{"id":"https://openalex.org/C30403606","wikidata":"https://www.wikidata.org/wiki/Q2981904","display_name":"Electromagnetic coil","level":2,"score":0.6756757497787476},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.6429473161697388},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.46626052260398865},{"id":"https://openalex.org/C134786449","wikidata":"https://www.wikidata.org/wiki/Q3391255","display_name":"Planar","level":2,"score":0.43165531754493713},{"id":"https://openalex.org/C163258240","wikidata":"https://www.wikidata.org/wiki/Q25342","display_name":"Power (physics)","level":2,"score":0.42267894744873047},{"id":"https://openalex.org/C21822782","wikidata":"https://www.wikidata.org/wiki/Q131214","display_name":"Antenna (radio)","level":2,"score":0.4084179997444153},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.39203381538391113},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.36442098021507263},{"id":"https://openalex.org/C24890656","wikidata":"https://www.wikidata.org/wiki/Q82811","display_name":"Acoustics","level":1,"score":0.36436885595321655},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.3475555181503296},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.20166319608688354},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.17544615268707275},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.15760678052902222},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C121684516","wikidata":"https://www.wikidata.org/wiki/Q7600677","display_name":"Computer graphics (images)","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tii.2019.2908217","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tii.2019.2908217","pdf_url":null,"source":{"id":"https://openalex.org/S184777250","display_name":"IEEE Transactions on Industrial Informatics","issn_l":"1551-3203","issn":["1551-3203","1941-0050"],"is_oa":false,"is_in_doaj":false,"is_core":true,"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 Transactions on Industrial Informatics","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Affordable and clean energy","score":0.8899999856948853,"id":"https://metadata.un.org/sdg/7"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":26,"referenced_works":["https://openalex.org/W561386247","https://openalex.org/W1968564995","https://openalex.org/W1971550940","https://openalex.org/W1991263520","https://openalex.org/W1993105068","https://openalex.org/W2032132351","https://openalex.org/W2050928834","https://openalex.org/W2062472118","https://openalex.org/W2063413892","https://openalex.org/W2110543874","https://openalex.org/W2173553300","https://openalex.org/W2275744299","https://openalex.org/W2285334426","https://openalex.org/W2321548803","https://openalex.org/W2330325282","https://openalex.org/W2331904148","https://openalex.org/W2419693816","https://openalex.org/W2466476881","https://openalex.org/W2560179162","https://openalex.org/W2589584141","https://openalex.org/W2594953813","https://openalex.org/W2769831010","https://openalex.org/W2781239329","https://openalex.org/W2781864832","https://openalex.org/W2982149042","https://openalex.org/W6729268070"],"related_works":["https://openalex.org/W1927917065","https://openalex.org/W2757434689","https://openalex.org/W4309960774","https://openalex.org/W2975251679","https://openalex.org/W1932943952","https://openalex.org/W2966820092","https://openalex.org/W4386249029","https://openalex.org/W2905497009","https://openalex.org/W2151250647","https://openalex.org/W2598296671"],"abstract_inverted_index":{"Recently,":[0],"omnidirectional":[1,52,104],"wireless":[2,26],"power":[3,36],"transfer":[4],"systems":[5],"have":[6],"been":[7],"studied":[8],"intensely":[9],"due":[10],"to":[11,35,45,99,110,115],"their":[12,18],"improved":[13],"flexibility":[14],"when":[15],"compared":[16],"with":[17,29,65],"planar":[19,59],"counterparts.":[20],"In":[21,80],"this":[22],"paper,":[23],"a":[24,58,130,140],"novel":[25],"charging":[27,129],"bowl":[28],"multiple":[30],"transmitter":[31,41,85],"coils":[32,86],"is":[33,43,73,97,113,126],"proposed":[34,84],"portable":[37,78],"devices.":[38,79],"The":[39,94,108],"bowl-shaped":[40],"coil":[42,61,109,111],"optimized":[44],"provide":[46],"sufficiently":[47],"strong":[48],"and":[49,67,89,103,123],"nearly":[50],"uniform":[51,102],"field":[53,96,106],"distribution.":[54,107],"Inside":[55],"the":[56,81,83,101,121,135],"bowl,":[57],"receiver":[60],"can":[62],"be":[63],"charged":[64],"free-positioning":[66],"arbitrary":[68],"orientation.":[69],"This":[70],"unique":[71],"benefit":[72],"particularly":[74],"attractive":[75],"for":[76,144],"low-power":[77],"experiment,":[82],"are":[87],"built":[88],"operated":[90],"at":[91],"6.78":[92],"MHz.":[93],"magnetic":[95,105],"measured":[98],"verify":[100],"efficiency":[112,137],"85%":[114],"95%.":[116],"A":[117],"complete":[118],"system":[119],"including":[120],"inverter":[122],"rectifier":[124],"stage":[125],"implemented.":[127],"When":[128],"5W":[131],"smart":[132],"phone":[133],"receiver,":[134],"overall":[136],"varies":[138],"within":[139],"range":[141],"from":[142],"68-80%":[143],"any":[145],"possible":[146],"position.":[147]},"counts_by_year":[{"year":2026,"cited_by_count":6},{"year":2025,"cited_by_count":20},{"year":2024,"cited_by_count":30},{"year":2023,"cited_by_count":43},{"year":2022,"cited_by_count":31},{"year":2021,"cited_by_count":29},{"year":2020,"cited_by_count":18},{"year":2019,"cited_by_count":4}],"updated_date":"2026-06-26T08:34:08.712188","created_date":"2025-10-10T00:00:00"}
