{"id":"https://openalex.org/W2110930105","doi":"https://doi.org/10.1109/rws.2014.6830136","title":"Variable beamwidth shorted patch antenna array for indoor positioning","display_name":"Variable beamwidth shorted patch antenna array for indoor positioning","publication_year":2014,"publication_date":"2014-01-01","ids":{"openalex":"https://openalex.org/W2110930105","doi":"https://doi.org/10.1109/rws.2014.6830136","mag":"2110930105"},"language":"en","primary_location":{"id":"doi:10.1109/rws.2014.6830136","is_oa":false,"landing_page_url":"https://doi.org/10.1109/rws.2014.6830136","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2014 IEEE Radio and Wireless Symposium (RWS)","raw_type":"proceedings-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/A5057120366","display_name":"Hisanori Matsumoto","orcid":null},"institutions":[{"id":"https://openalex.org/I65143321","display_name":"Hitachi (Japan)","ror":"https://ror.org/02exqgm79","country_code":"JP","type":"company","lineage":["https://openalex.org/I65143321"]}],"countries":["JP"],"is_corresponding":true,"raw_author_name":"Hisanori Matsumoto","raw_affiliation_strings":["Hitachi Industrial Equipment Systems Co., Ltd., Tokyo, Japan","Hitachi Industrial Equipment Systems Co., Ltd., AKS Bldg., 3 Kanda, Neribei-cho,#R#Chiyoda-ku, Tokyo 101-0022, Japan"],"affiliations":[{"raw_affiliation_string":"Hitachi Industrial Equipment Systems Co., Ltd., Tokyo, Japan","institution_ids":["https://openalex.org/I65143321"]},{"raw_affiliation_string":"Hitachi Industrial Equipment Systems Co., Ltd., AKS Bldg., 3 Kanda, Neribei-cho,#R#Chiyoda-ku, Tokyo 101-0022, Japan","institution_ids":["https://openalex.org/I65143321"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5048943901","display_name":"Makoto Tanikawara","orcid":null},"institutions":[{"id":"https://openalex.org/I65143321","display_name":"Hitachi (Japan)","ror":"https://ror.org/02exqgm79","country_code":"JP","type":"company","lineage":["https://openalex.org/I65143321"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Makoto Tanikawara","raw_affiliation_strings":["Hitachi Industrial Equipment Systems Co., Ltd., Tokyo, Japan","Hitachi Industrial Equipment Systems Co., Ltd., AKS Bldg., 3 Kanda, Neribei-cho,#R#Chiyoda-ku, Tokyo 101-0022, Japan"],"affiliations":[{"raw_affiliation_string":"Hitachi Industrial Equipment Systems Co., Ltd., Tokyo, Japan","institution_ids":["https://openalex.org/I65143321"]},{"raw_affiliation_string":"Hitachi Industrial Equipment Systems Co., Ltd., AKS Bldg., 3 Kanda, Neribei-cho,#R#Chiyoda-ku, Tokyo 101-0022, Japan","institution_ids":["https://openalex.org/I65143321"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5032601569","display_name":"Tomohisa Kohiyama","orcid":null},"institutions":[{"id":"https://openalex.org/I65143321","display_name":"Hitachi (Japan)","ror":"https://ror.org/02exqgm79","country_code":"JP","type":"company","lineage":["https://openalex.org/I65143321"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Tomohisa Kohiyama","raw_affiliation_strings":["Hitachi Industrial Equipment Systems Co., Ltd., Tokyo, Japan","Hitachi Industrial Equipment Systems Co., Ltd., AKS Bldg., 3 Kanda, Neribei-cho,#R#Chiyoda-ku, Tokyo 101-0022, Japan"],"affiliations":[{"raw_affiliation_string":"Hitachi Industrial Equipment Systems Co., Ltd., Tokyo, Japan","institution_ids":["https://openalex.org/I65143321"]},{"raw_affiliation_string":"Hitachi Industrial Equipment Systems Co., Ltd., AKS Bldg., 3 Kanda, Neribei-cho,#R#Chiyoda-ku, Tokyo 101-0022, Japan","institution_ids":["https://openalex.org/I65143321"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5057120366"],"corresponding_institution_ids":["https://openalex.org/I65143321"],"apc_list":null,"apc_paid":null,"fwci":0.4187,"has_fulltext":false,"cited_by_count":5,"citation_normalized_percentile":{"value":0.69337757,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":96},"biblio":{"volume":null,"issue":null,"first_page":"64","last_page":"66"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10326","display_name":"Indoor and Outdoor Localization Technologies","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/T10326","display_name":"Indoor and Outdoor Localization Technologies","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/T10069","display_name":"Antenna Design and Analysis","score":0.9986000061035156,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace 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/T11158","display_name":"Wireless Networks and Protocols","score":0.996999979019165,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/beamwidth","display_name":"Beamwidth","score":0.9848381876945496},{"id":"https://openalex.org/keywords/transmitter","display_name":"Transmitter","score":0.6072747707366943},{"id":"https://openalex.org/keywords/antenna","display_name":"Antenna (radio)","score":0.5608206987380981},{"id":"https://openalex.org/keywords/acoustics","display_name":"Acoustics","score":0.4520528018474579},{"id":"https://openalex.org/keywords/directional-antenna","display_name":"Directional antenna","score":0.4355887174606323},{"id":"https://openalex.org/keywords/variable","display_name":"Variable (mathematics)","score":0.4324849247932434},{"id":"https://openalex.org/keywords/reflective-array-antenna","display_name":"Reflective array antenna","score":0.4253847002983093},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.3568022549152374},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.29396432638168335},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.23399955034255981},{"id":"https://openalex.org/keywords/slot-antenna","display_name":"Slot antenna","score":0.13387411832809448},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.0709989070892334}],"concepts":[{"id":"https://openalex.org/C190060920","wikidata":"https://www.wikidata.org/wiki/Q4876232","display_name":"Beamwidth","level":3,"score":0.9848381876945496},{"id":"https://openalex.org/C47798520","wikidata":"https://www.wikidata.org/wiki/Q190157","display_name":"Transmitter","level":3,"score":0.6072747707366943},{"id":"https://openalex.org/C21822782","wikidata":"https://www.wikidata.org/wiki/Q131214","display_name":"Antenna (radio)","level":2,"score":0.5608206987380981},{"id":"https://openalex.org/C24890656","wikidata":"https://www.wikidata.org/wiki/Q82811","display_name":"Acoustics","level":1,"score":0.4520528018474579},{"id":"https://openalex.org/C64671776","wikidata":"https://www.wikidata.org/wiki/Q769152","display_name":"Directional antenna","level":3,"score":0.4355887174606323},{"id":"https://openalex.org/C182365436","wikidata":"https://www.wikidata.org/wiki/Q50701","display_name":"Variable (mathematics)","level":2,"score":0.4324849247932434},{"id":"https://openalex.org/C169466946","wikidata":"https://www.wikidata.org/wiki/Q7307317","display_name":"Reflective array antenna","level":5,"score":0.4253847002983093},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.3568022549152374},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.29396432638168335},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.23399955034255981},{"id":"https://openalex.org/C109026120","wikidata":"https://www.wikidata.org/wiki/Q2369099","display_name":"Slot antenna","level":4,"score":0.13387411832809448},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.0709989070892334},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.0},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/rws.2014.6830136","is_oa":false,"landing_page_url":"https://doi.org/10.1109/rws.2014.6830136","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2014 IEEE Radio and Wireless Symposium (RWS)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Affordable and clean energy","id":"https://metadata.un.org/sdg/7","score":0.5099999904632568}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":8,"referenced_works":["https://openalex.org/W2075178872","https://openalex.org/W2100989187","https://openalex.org/W2139661319","https://openalex.org/W2155610338","https://openalex.org/W2252359842","https://openalex.org/W2490523548","https://openalex.org/W6680917111","https://openalex.org/W6691399603"],"related_works":["https://openalex.org/W2133830785","https://openalex.org/W2094207885","https://openalex.org/W2108341254","https://openalex.org/W3199956616","https://openalex.org/W2532616386","https://openalex.org/W4392027277","https://openalex.org/W1657821752","https://openalex.org/W2152917725","https://openalex.org/W2966261320","https://openalex.org/W2112606344"],"abstract_inverted_index":{"Variable":[0],"beamwidth":[1,22,65],"antennas":[2,37],"can":[3,71],"optimize":[4],"the":[5,44,58,76],"radio":[6],"coverage":[7],"of":[8,32],"a":[9,19],"transmitter":[10],"for":[11,26,41,81],"indoor":[12,27,45],"positioning.":[13],"In":[14],"this":[15],"study,":[16],"we":[17],"developed":[18],"small":[20,34],"variable":[21],"antenna":[23,59],"array":[24],"suitable":[25],"positioning":[28],"that":[29,64,75],"is":[30,39,79],"comprised":[31],"electrically":[33],"shorted":[35],"patch":[36],"and":[38,53,74],"adapted":[40],"use":[42,82],"with":[43,83],"messaging":[46],"system":[47],"(IMES).":[48],"We":[49],"did":[50],"theoretical":[51],"calculations":[52],"experimental":[54],"measurements":[55],"to":[56,69],"examine":[57],"properties.":[60],"Our":[61],"results":[62],"showed":[63],"variations":[66],"from":[67],"40\u00b0":[68],"65\u00b0":[70],"be":[72],"obtained":[73],"boresight":[77],"gain":[78],"adequate":[80],"IMES":[84],"transmitters.":[85]},"counts_by_year":[{"year":2019,"cited_by_count":2},{"year":2018,"cited_by_count":1},{"year":2016,"cited_by_count":1},{"year":2015,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}