{"id":"https://openalex.org/W4411408524","doi":"https://doi.org/10.1109/tim.2025.3580838","title":"An Active Quasi-Circulator Technique for MHz Impedance Measurement for Wearables","display_name":"An Active Quasi-Circulator Technique for MHz Impedance Measurement for Wearables","publication_year":2025,"publication_date":"2025-01-01","ids":{"openalex":"https://openalex.org/W4411408524","doi":"https://doi.org/10.1109/tim.2025.3580838"},"language":"en","primary_location":{"id":"doi:10.1109/tim.2025.3580838","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tim.2025.3580838","pdf_url":null,"source":{"id":"https://openalex.org/S10892749","display_name":"IEEE Transactions on Instrumentation and Measurement","issn_l":"0018-9456","issn":["0018-9456","1557-9662"],"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 Instrumentation and Measurement","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/A5092213085","display_name":"Sharisse Poff","orcid":"https://orcid.org/0009-0007-6547-1603"},"institutions":[{"id":"https://openalex.org/I100005738","display_name":"Brigham Young University","ror":"https://ror.org/047rhhm47","country_code":"US","type":"education","lineage":["https://openalex.org/I100005738"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Sharisse Poff","raw_affiliation_strings":["Department of Electrical and Computer Engineering, Brigham Young University, Provo, UT, USA"],"raw_orcid":"https://orcid.org/0009-0007-6547-1603","affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, Brigham Young University, Provo, UT, USA","institution_ids":["https://openalex.org/I100005738"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5092213086","display_name":"Daniel H. Tebbs","orcid":null},"institutions":[{"id":"https://openalex.org/I100005738","display_name":"Brigham Young University","ror":"https://ror.org/047rhhm47","country_code":"US","type":"education","lineage":["https://openalex.org/I100005738"]},{"id":"https://openalex.org/I4210087015","display_name":"Leavitt Partners (United States)","ror":"https://ror.org/000fzkp10","country_code":"US","type":"company","lineage":["https://openalex.org/I4210087015"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Daniel H. Tebbs","raw_affiliation_strings":["Octavian Solutions, Lehi, UT, USA","Department of Electrical and Computer Engineering, Brigham Young University, Provo, UT, USA"],"raw_orcid":"https://orcid.org/0009-0004-5858-7526","affiliations":[{"raw_affiliation_string":"Octavian Solutions, Lehi, UT, USA","institution_ids":["https://openalex.org/I4210087015"]},{"raw_affiliation_string":"Department of Electrical and Computer Engineering, Brigham Young University, Provo, UT, USA","institution_ids":["https://openalex.org/I100005738"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5046290171","display_name":"N. Allen","orcid":"https://orcid.org/0000-0001-9446-2465"},"institutions":[{"id":"https://openalex.org/I100005738","display_name":"Brigham Young University","ror":"https://ror.org/047rhhm47","country_code":"US","type":"education","lineage":["https://openalex.org/I100005738"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Nicholas E. Allen","raw_affiliation_strings":["Department of Physics and Astronomy, Brigham Young University, Provo, UT, USA"],"raw_orcid":"https://orcid.org/0000-0001-9446-2465","affiliations":[{"raw_affiliation_string":"Department of Physics and Astronomy, Brigham Young University, Provo, UT, USA","institution_ids":["https://openalex.org/I100005738"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Marcus Julian","orcid":"https://orcid.org/0009-0002-7151-3754"},"institutions":[{"id":"https://openalex.org/I75929689","display_name":"UConn Health","ror":"https://ror.org/02kzs4y22","country_code":"US","type":"healthcare","lineage":["https://openalex.org/I75929689"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Marcus Julian","raw_affiliation_strings":["Tula Health Inc., Farmington, UT, USA","Tula Health, Inc., USA"],"raw_orcid":"https://orcid.org/0009-0002-7151-3754","affiliations":[{"raw_affiliation_string":"Tula Health Inc., Farmington, UT, USA","institution_ids":["https://openalex.org/I75929689"]},{"raw_affiliation_string":"Tula Health, Inc., USA","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5072063394","display_name":"Robert C. Davis","orcid":"https://orcid.org/0000-0002-6165-4396"},"institutions":[{"id":"https://openalex.org/I100005738","display_name":"Brigham Young University","ror":"https://ror.org/047rhhm47","country_code":"US","type":"education","lineage":["https://openalex.org/I100005738"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Robert C. Davis","raw_affiliation_strings":["Department of Physics and Astronomy, Brigham Young University, Provo, UT, USA"],"raw_orcid":"https://orcid.org/0000-0002-6165-4396","affiliations":[{"raw_affiliation_string":"Department of Physics and Astronomy, Brigham Young University, Provo, UT, USA","institution_ids":["https://openalex.org/I100005738"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5033562869","display_name":"Shiuh-Hua Wood Chiang","orcid":"https://orcid.org/0000-0001-8091-6569"},"institutions":[{"id":"https://openalex.org/I100005738","display_name":"Brigham Young University","ror":"https://ror.org/047rhhm47","country_code":"US","type":"education","lineage":["https://openalex.org/I100005738"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Shiuh-Hua Wood Chiang","raw_affiliation_strings":["Department of Electrical and Computer Engineering, Brigham Young University, Provo, UT, USA"],"raw_orcid":"https://orcid.org/0000-0001-8091-6569","affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, Brigham Young University, Provo, UT, USA","institution_ids":["https://openalex.org/I100005738"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":6,"corresponding_author_ids":["https://openalex.org/A5092213085"],"corresponding_institution_ids":["https://openalex.org/I100005738"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.1138212,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"74","issue":null,"first_page":"1","last_page":"10"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12510","display_name":"Magneto-Optical Properties and Applications","score":0.8579000234603882,"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/T12510","display_name":"Magneto-Optical Properties and Applications","score":0.8579000234603882,"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/T12791","display_name":"Full-Duplex Wireless Communications","score":0.842199981212616,"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/circulator","display_name":"Circulator","score":0.878620445728302},{"id":"https://openalex.org/keywords/focused-impedance-measurement","display_name":"Focused Impedance Measurement","score":0.7849023342132568},{"id":"https://openalex.org/keywords/electrical-impedance","display_name":"Electrical impedance","score":0.6487741470336914},{"id":"https://openalex.org/keywords/wearable-computer","display_name":"Wearable computer","score":0.6193636059761047},{"id":"https://openalex.org/keywords/electrical-engineering","display_name":"Electrical engineering","score":0.5423378348350525},{"id":"https://openalex.org/keywords/acoustics","display_name":"Acoustics","score":0.5368400812149048},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.4628066420555115},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.40862080454826355},{"id":"https://openalex.org/keywords/materials-science","display_name":"Materials science","score":0.36590641736984253},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.28692981600761414},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.28243210911750793},{"id":"https://openalex.org/keywords/embedded-system","display_name":"Embedded system","score":0.11242601275444031}],"concepts":[{"id":"https://openalex.org/C120546263","wikidata":"https://www.wikidata.org/wiki/Q162869","display_name":"Circulator","level":2,"score":0.878620445728302},{"id":"https://openalex.org/C172066009","wikidata":"https://www.wikidata.org/wiki/Q5463955","display_name":"Focused Impedance Measurement","level":3,"score":0.7849023342132568},{"id":"https://openalex.org/C17829176","wikidata":"https://www.wikidata.org/wiki/Q179043","display_name":"Electrical impedance","level":2,"score":0.6487741470336914},{"id":"https://openalex.org/C150594956","wikidata":"https://www.wikidata.org/wiki/Q1334829","display_name":"Wearable computer","level":2,"score":0.6193636059761047},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.5423378348350525},{"id":"https://openalex.org/C24890656","wikidata":"https://www.wikidata.org/wiki/Q82811","display_name":"Acoustics","level":1,"score":0.5368400812149048},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.4628066420555115},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.40862080454826355},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.36590641736984253},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.28692981600761414},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.28243210911750793},{"id":"https://openalex.org/C149635348","wikidata":"https://www.wikidata.org/wiki/Q193040","display_name":"Embedded system","level":1,"score":0.11242601275444031}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tim.2025.3580838","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tim.2025.3580838","pdf_url":null,"source":{"id":"https://openalex.org/S10892749","display_name":"IEEE Transactions on Instrumentation and Measurement","issn_l":"0018-9456","issn":["0018-9456","1557-9662"],"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 Instrumentation and Measurement","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.6299999952316284,"display_name":"Affordable and clean energy","id":"https://metadata.un.org/sdg/7"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":35,"referenced_works":["https://openalex.org/W1530860824","https://openalex.org/W1981857363","https://openalex.org/W1989581211","https://openalex.org/W1993891405","https://openalex.org/W2007117639","https://openalex.org/W2007497882","https://openalex.org/W2051428347","https://openalex.org/W2059808080","https://openalex.org/W2074258298","https://openalex.org/W2114051039","https://openalex.org/W2114311742","https://openalex.org/W2154909364","https://openalex.org/W2163340398","https://openalex.org/W2168559075","https://openalex.org/W2223408663","https://openalex.org/W2281040777","https://openalex.org/W2296545289","https://openalex.org/W2501921835","https://openalex.org/W2606959415","https://openalex.org/W2735515039","https://openalex.org/W2896156578","https://openalex.org/W2896989731","https://openalex.org/W2922198109","https://openalex.org/W2941489955","https://openalex.org/W2978748478","https://openalex.org/W2980100632","https://openalex.org/W2984420993","https://openalex.org/W2998326829","https://openalex.org/W3000295841","https://openalex.org/W3094722601","https://openalex.org/W3099587443","https://openalex.org/W3136120812","https://openalex.org/W4200434461","https://openalex.org/W4381332083","https://openalex.org/W7034402985"],"related_works":["https://openalex.org/W2545105407","https://openalex.org/W1530957495","https://openalex.org/W2562155397","https://openalex.org/W2752941547","https://openalex.org/W1974813547","https://openalex.org/W1990323938","https://openalex.org/W2072189119","https://openalex.org/W2740538285","https://openalex.org/W2518027987","https://openalex.org/W1982482510"],"abstract_inverted_index":{"A":[0,57],"unique":[1],"circuit":[2,58,81,104],"technique":[3,22],"utilizing":[4],"the":[5,21,34,37,46,49,61,67,71,80],"active":[6,84],"quasi-circulator":[7],"(AQC)":[8],"for":[9,28,107],"impedance":[10,26,35,93],"measurement":[11,94],"is":[12,105],"presented.":[13],"Overcoming":[14],"limitations":[15],"of":[16,36,63,86],"size,":[17],"frequency,":[18],"and":[19,65,91],"sensitivity,":[20],"enables":[23],"sensitive":[24],"MHz":[25,41,117],"measurements":[27],"wearable":[29],"applications.":[30],"The":[31,102],"AQC":[32,68],"measures":[33],"device-under-test":[38],"(DUT)":[39],"at":[40,48,95,116],"excitation":[42,96],"frequencies":[43,97],"through":[44],"nulling":[45],"output":[47],"DUT":[50,72],"match":[51],"point":[52],"while":[53],"offering":[54],"enhanced":[55],"sensitivity.":[56],"analysis":[59],"presents":[60],"theory":[62],"operation":[64],"models":[66],"to":[69,99],"extract":[70],"impedance.":[73],"Fabricated":[74],"in":[75],"a":[76],"180-nm":[77],"CMOS":[78],"process,":[79],"occupies":[82],"an":[83],"area":[85],"0.012":[87],"mm<sup":[88],"xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"":[89],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">2</sup>":[90],"demonstrates":[92],"up":[98],"25":[100],"MHz.":[101],"proposed":[103],"attractive":[106],"measuring":[108],"living":[109],"tissues":[110],"that":[111],"exhibit":[112],"strong":[113],"bioimpedance":[114],"response":[115],"frequencies.":[118]},"counts_by_year":[],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}