{"id":"https://openalex.org/W3109722388","doi":"https://doi.org/10.3390/s20236848","title":"Subcarrier Frequency-Modulated Continuous-Wave Radar in the Terahertz Range Based on a Resonant-Tunneling-Diode Oscillator","display_name":"Subcarrier Frequency-Modulated Continuous-Wave Radar in the Terahertz Range Based on a Resonant-Tunneling-Diode Oscillator","publication_year":2020,"publication_date":"2020-11-30","ids":{"openalex":"https://openalex.org/W3109722388","doi":"https://doi.org/10.3390/s20236848","mag":"3109722388","pmid":"https://pubmed.ncbi.nlm.nih.gov/33266073"},"language":"en","primary_location":{"id":"doi:10.3390/s20236848","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s20236848","pdf_url":"https://www.mdpi.com/1424-8220/20/23/6848/pdf?version=1606802918","source":{"id":"https://openalex.org/S101949793","display_name":"Sensors","issn_l":"1424-8220","issn":["1424-8220"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Sensors","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj","pubmed"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://www.mdpi.com/1424-8220/20/23/6848/pdf?version=1606802918","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5003616668","display_name":"Adrian Dobroiu","orcid":"https://orcid.org/0000-0002-2575-4138"},"institutions":[{"id":"https://openalex.org/I114531698","display_name":"Tokyo Institute of Technology","ror":"https://ror.org/0112mx960","country_code":"JP","type":"education","lineage":["https://openalex.org/I114531698"]}],"countries":["JP"],"is_corresponding":true,"raw_author_name":"Adrian Dobroiu","raw_affiliation_strings":["Tokyo Institute of Technology, Meguro, Tokyo 152-8552, Japan"],"raw_orcid":"https://orcid.org/0000-0002-2575-4138","affiliations":[{"raw_affiliation_string":"Tokyo Institute of Technology, Meguro, Tokyo 152-8552, Japan","institution_ids":["https://openalex.org/I114531698"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5070164872","display_name":"Yusuke Shirakawa","orcid":null},"institutions":[{"id":"https://openalex.org/I114531698","display_name":"Tokyo Institute of Technology","ror":"https://ror.org/0112mx960","country_code":"JP","type":"education","lineage":["https://openalex.org/I114531698"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Yusuke Shirakawa","raw_affiliation_strings":["Tokyo Institute of Technology, Meguro, Tokyo 152-8552, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Tokyo Institute of Technology, Meguro, Tokyo 152-8552, Japan","institution_ids":["https://openalex.org/I114531698"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5027768228","display_name":"Safumi Suzuki","orcid":"https://orcid.org/0000-0003-1558-7935"},"institutions":[{"id":"https://openalex.org/I114531698","display_name":"Tokyo Institute of Technology","ror":"https://ror.org/0112mx960","country_code":"JP","type":"education","lineage":["https://openalex.org/I114531698"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Safumi Suzuki","raw_affiliation_strings":["Tokyo Institute of Technology, Meguro, Tokyo 152-8552, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Tokyo Institute of Technology, Meguro, Tokyo 152-8552, Japan","institution_ids":["https://openalex.org/I114531698"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5043192829","display_name":"Masahiro Asada","orcid":"https://orcid.org/0000-0001-8810-9040"},"institutions":[{"id":"https://openalex.org/I114531698","display_name":"Tokyo Institute of Technology","ror":"https://ror.org/0112mx960","country_code":"JP","type":"education","lineage":["https://openalex.org/I114531698"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Masahiro Asada","raw_affiliation_strings":["Tokyo Institute of Technology, Meguro, Tokyo 152-8552, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Tokyo Institute of Technology, Meguro, Tokyo 152-8552, Japan","institution_ids":["https://openalex.org/I114531698"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5010249669","display_name":"Hiroshi It\u00f4","orcid":"https://orcid.org/0000-0002-2072-3113"},"institutions":[{"id":"https://openalex.org/I64189623","display_name":"Kitasato University","ror":"https://ror.org/00f2txz25","country_code":"JP","type":"education","lineage":["https://openalex.org/I64189623"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Hiroshi Ito","raw_affiliation_strings":["Center for Natural Sciences, Kitasato University, Sagamihara, Kanagawa 252-0373, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Center for Natural Sciences, Kitasato University, Sagamihara, Kanagawa 252-0373, Japan","institution_ids":["https://openalex.org/I64189623"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5003616668"],"corresponding_institution_ids":["https://openalex.org/I114531698"],"apc_list":{"value":2400,"currency":"CHF","value_usd":2598},"apc_paid":{"value":2400,"currency":"CHF","value_usd":2598},"fwci":1.3529,"has_fulltext":true,"cited_by_count":17,"citation_normalized_percentile":{"value":0.81331027,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":91,"max":98},"biblio":{"volume":"20","issue":"23","first_page":"6848","last_page":"6848"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10752","display_name":"Terahertz technology and applications","score":0.9997000098228455,"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/T10752","display_name":"Terahertz technology and applications","score":0.9997000098228455,"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/T10022","display_name":"Semiconductor Quantum Structures and Devices","score":0.9994000196456909,"subfield":{"id":"https://openalex.org/subfields/3107","display_name":"Atomic and Molecular Physics, and Optics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11111","display_name":"Spectroscopy and Laser Applications","score":0.9983000159263611,"subfield":{"id":"https://openalex.org/subfields/1607","display_name":"Spectroscopy"},"field":{"id":"https://openalex.org/fields/16","display_name":"Chemistry"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/sawtooth-wave","display_name":"Sawtooth wave","score":0.8242658376693726},{"id":"https://openalex.org/keywords/resonant-tunneling-diode","display_name":"Resonant-tunneling diode","score":0.7362491488456726},{"id":"https://openalex.org/keywords/voltage-controlled-oscillator","display_name":"Voltage-controlled oscillator","score":0.692929208278656},{"id":"https://openalex.org/keywords/subcarrier","display_name":"Subcarrier","score":0.6754236817359924},{"id":"https://openalex.org/keywords/terahertz-radiation","display_name":"Terahertz radiation","score":0.6343584060668945},{"id":"https://openalex.org/keywords/frequency-modulation","display_name":"Frequency modulation","score":0.6248811483383179},{"id":"https://openalex.org/keywords/radar","display_name":"Radar","score":0.5460030436515808},{"id":"https://openalex.org/keywords/frequency-drift","display_name":"Frequency drift","score":0.5147535800933838},{"id":"https://openalex.org/keywords/continuous-wave-radar","display_name":"Continuous-wave radar","score":0.5130325555801392},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.5043286085128784},{"id":"https://openalex.org/keywords/variable-frequency-oscillator","display_name":"Variable-frequency oscillator","score":0.497816801071167},{"id":"https://openalex.org/keywords/vack\u00e1\u0159-oscillator","display_name":"Vack\u00e1\u0159 oscillator","score":0.49012431502342224},{"id":"https://openalex.org/keywords/amplitude-modulation","display_name":"Amplitude modulation","score":0.4397393763065338},{"id":"https://openalex.org/keywords/continuous-wave","display_name":"Continuous wave","score":0.4187883734703064},{"id":"https://openalex.org/keywords/local-oscillator","display_name":"Local oscillator","score":0.3977314233779907},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.3815282881259918},{"id":"https://openalex.org/keywords/optics","display_name":"Optics","score":0.34777915477752686},{"id":"https://openalex.org/keywords/electrical-engineering","display_name":"Electrical engineering","score":0.26717692613601685},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.2398836612701416},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.2197728455066681},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.2000790238380432},{"id":"https://openalex.org/keywords/laser","display_name":"Laser","score":0.20007067918777466},{"id":"https://openalex.org/keywords/phase-noise","display_name":"Phase noise","score":0.18931037187576294},{"id":"https://openalex.org/keywords/radar-imaging","display_name":"Radar imaging","score":0.1444840133190155},{"id":"https://openalex.org/keywords/radio-frequency","display_name":"Radio frequency","score":0.13117310404777527}],"concepts":[{"id":"https://openalex.org/C148837635","wikidata":"https://www.wikidata.org/wiki/Q1742397","display_name":"Sawtooth wave","level":2,"score":0.8242658376693726},{"id":"https://openalex.org/C163953579","wikidata":"https://www.wikidata.org/wiki/Q176256","display_name":"Resonant-tunneling diode","level":4,"score":0.7362491488456726},{"id":"https://openalex.org/C5291336","wikidata":"https://www.wikidata.org/wiki/Q852341","display_name":"Voltage-controlled oscillator","level":3,"score":0.692929208278656},{"id":"https://openalex.org/C198329298","wikidata":"https://www.wikidata.org/wiki/Q586358","display_name":"Subcarrier","level":4,"score":0.6754236817359924},{"id":"https://openalex.org/C107816215","wikidata":"https://www.wikidata.org/wiki/Q647887","display_name":"Terahertz radiation","level":2,"score":0.6343584060668945},{"id":"https://openalex.org/C11930861","wikidata":"https://www.wikidata.org/wiki/Q181417","display_name":"Frequency modulation","level":3,"score":0.6248811483383179},{"id":"https://openalex.org/C554190296","wikidata":"https://www.wikidata.org/wiki/Q47528","display_name":"Radar","level":2,"score":0.5460030436515808},{"id":"https://openalex.org/C122348159","wikidata":"https://www.wikidata.org/wiki/Q5502869","display_name":"Frequency drift","level":4,"score":0.5147535800933838},{"id":"https://openalex.org/C59584813","wikidata":"https://www.wikidata.org/wiki/Q1029234","display_name":"Continuous-wave radar","level":4,"score":0.5130325555801392},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.5043286085128784},{"id":"https://openalex.org/C120164764","wikidata":"https://www.wikidata.org/wiki/Q705396","display_name":"Variable-frequency oscillator","level":4,"score":0.497816801071167},{"id":"https://openalex.org/C111657199","wikidata":"https://www.wikidata.org/wiki/Q2300256","display_name":"Vack\u00e1\u0159 oscillator","level":4,"score":0.49012431502342224},{"id":"https://openalex.org/C201905106","wikidata":"https://www.wikidata.org/wiki/Q183755","display_name":"Amplitude modulation","level":4,"score":0.4397393763065338},{"id":"https://openalex.org/C99568719","wikidata":"https://www.wikidata.org/wiki/Q1129003","display_name":"Continuous wave","level":3,"score":0.4187883734703064},{"id":"https://openalex.org/C203597036","wikidata":"https://www.wikidata.org/wiki/Q1238887","display_name":"Local oscillator","level":3,"score":0.3977314233779907},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.3815282881259918},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.34777915477752686},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.26717692613601685},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.2398836612701416},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.2197728455066681},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.2000790238380432},{"id":"https://openalex.org/C520434653","wikidata":"https://www.wikidata.org/wiki/Q38867","display_name":"Laser","level":2,"score":0.20007067918777466},{"id":"https://openalex.org/C89631360","wikidata":"https://www.wikidata.org/wiki/Q1428766","display_name":"Phase noise","level":2,"score":0.18931037187576294},{"id":"https://openalex.org/C10929652","wikidata":"https://www.wikidata.org/wiki/Q7279985","display_name":"Radar imaging","level":3,"score":0.1444840133190155},{"id":"https://openalex.org/C74064498","wikidata":"https://www.wikidata.org/wiki/Q3396184","display_name":"Radio frequency","level":2,"score":0.13117310404777527},{"id":"https://openalex.org/C165801399","wikidata":"https://www.wikidata.org/wiki/Q25428","display_name":"Voltage","level":2,"score":0.0},{"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/C29169072","wikidata":"https://www.wikidata.org/wiki/Q521166","display_name":"Quantum well","level":3,"score":0.0},{"id":"https://openalex.org/C40409654","wikidata":"https://www.wikidata.org/wiki/Q375889","display_name":"Orthogonal frequency-division multiplexing","level":3,"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":6,"locations":[{"id":"doi:10.3390/s20236848","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s20236848","pdf_url":"https://www.mdpi.com/1424-8220/20/23/6848/pdf?version=1606802918","source":{"id":"https://openalex.org/S101949793","display_name":"Sensors","issn_l":"1424-8220","issn":["1424-8220"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Sensors","raw_type":"journal-article"},{"id":"pmid:33266073","is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/33266073","pdf_url":null,"source":{"id":"https://openalex.org/S4306525036","display_name":"PubMed","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Sensors (Basel, Switzerland)","raw_type":null},{"id":"pmh:oai:doaj.org/article:0566fe96005644eaadcdc6382efbd93a","is_oa":true,"landing_page_url":"https://doaj.org/article/0566fe96005644eaadcdc6382efbd93a","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,"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":"Sensors, Vol 20, Iss 23, p 6848 (2020)","raw_type":"article"},{"id":"pmh:oai:irdb.nii.ac.jp:00897:0004922966","is_oa":false,"landing_page_url":"http://t2r2.star.titech.ac.jp/cgi-bin/publicationinfo.cgi?q_publication_content_number=CTT100852619","pdf_url":null,"source":{"id":"https://openalex.org/S7407056385","display_name":"Institutional Repositories DataBase (IRDB)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I184597095","host_organization_name":"National Institute of Informatics","host_organization_lineage":["https://openalex.org/I184597095"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"journal article"},{"id":"pmh:oai:mdpi.com:/1424-8220/20/23/6848/","is_oa":true,"landing_page_url":"https://dx.doi.org/10.3390/s20236848","pdf_url":null,"source":{"id":"https://openalex.org/S4306400947","display_name":"MDPI (MDPI AG)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I4210097602","host_organization_name":"Multidisciplinary Digital Publishing Institute (Switzerland)","host_organization_lineage":["https://openalex.org/I4210097602"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Sensors; Volume 20; Issue 23; Pages: 6848","raw_type":"Text"},{"id":"pmh:oai:pubmedcentral.nih.gov:7730032","is_oa":true,"landing_page_url":"https://www.ncbi.nlm.nih.gov/pmc/articles/7730032","pdf_url":null,"source":{"id":"https://openalex.org/S2764455111","display_name":"PubMed Central","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Sensors (Basel)","raw_type":"Text"}],"best_oa_location":{"id":"doi:10.3390/s20236848","is_oa":true,"landing_page_url":"https://doi.org/10.3390/s20236848","pdf_url":"https://www.mdpi.com/1424-8220/20/23/6848/pdf?version=1606802918","source":{"id":"https://openalex.org/S101949793","display_name":"Sensors","issn_l":"1424-8220","issn":["1424-8220"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310310987","host_organization_name":"Multidisciplinary Digital Publishing Institute","host_organization_lineage":["https://openalex.org/P4310310987"],"host_organization_lineage_names":["Multidisciplinary Digital Publishing Institute"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Sensors","raw_type":"journal-article"},"sustainable_development_goals":[{"score":0.6700000166893005,"display_name":"Affordable and clean energy","id":"https://metadata.un.org/sdg/7"}],"awards":[{"id":"https://openalex.org/G1690343570","display_name":null,"funder_award_id":"CREST JPMJCR1534","funder_id":"https://openalex.org/F4320334789","funder_display_name":"Japan Science and Technology Agency"},{"id":"https://openalex.org/G2265170245","display_name":null,"funder_award_id":"JPMJCR1534","funder_id":"https://openalex.org/F4320338075","funder_display_name":"Core Research for Evolutional Science and Technology"},{"id":"https://openalex.org/G3377384811","display_name":null,"funder_award_id":"JP17942998","funder_id":"https://openalex.org/F4320338113","funder_display_name":"Accelerated Innovation Research Initiative Turning Top Science and Ideas into High-Impact Values"},{"id":"https://openalex.org/G4428350902","display_name":"Exploration of breakthrough in terahertz-device performance by understanding the radiation mechanism from view point of electron travelling and transition","funder_award_id":"16H06292","funder_id":"https://openalex.org/F4320334764","funder_display_name":"Japan Society for the Promotion of Science"},{"id":"https://openalex.org/G6718509927","display_name":null,"funder_award_id":"CREST","funder_id":"https://openalex.org/F4320334764","funder_display_name":"Japan Society for the Promotion of Science"},{"id":"https://openalex.org/G8617032553","display_name":null,"funder_award_id":"JP17942998","funder_id":"https://openalex.org/F4320334789","funder_display_name":"Japan Science and Technology Agency"}],"funders":[{"id":"https://openalex.org/F4320334764","display_name":"Japan Society for the Promotion of Science","ror":"https://ror.org/00hhkn466"},{"id":"https://openalex.org/F4320334789","display_name":"Japan Science and Technology Agency","ror":"https://ror.org/00097mb19"},{"id":"https://openalex.org/F4320338075","display_name":"Core Research for Evolutional Science and Technology","ror":"https://ror.org/00097mb19"},{"id":"https://openalex.org/F4320338113","display_name":"Accelerated Innovation Research Initiative Turning Top Science and Ideas into High-Impact Values","ror":null}],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W3109722388.pdf","grobid_xml":"https://content.openalex.org/works/W3109722388.grobid-xml"},"referenced_works_count":20,"referenced_works":["https://openalex.org/W124552162","https://openalex.org/W311625791","https://openalex.org/W1592265427","https://openalex.org/W1993229640","https://openalex.org/W2030927366","https://openalex.org/W2113793579","https://openalex.org/W2116097429","https://openalex.org/W2325373497","https://openalex.org/W2476763325","https://openalex.org/W2491159040","https://openalex.org/W2761710869","https://openalex.org/W2883634551","https://openalex.org/W2902528667","https://openalex.org/W2926968498","https://openalex.org/W2972057040","https://openalex.org/W2973765108","https://openalex.org/W2982135323","https://openalex.org/W3020337627","https://openalex.org/W3023681417","https://openalex.org/W4231091843"],"related_works":["https://openalex.org/W2089756716","https://openalex.org/W4394898276","https://openalex.org/W2164595533","https://openalex.org/W2533133627","https://openalex.org/W4220984365","https://openalex.org/W2347344856","https://openalex.org/W1589246925","https://openalex.org/W2071994678","https://openalex.org/W2045323586","https://openalex.org/W2354924531"],"abstract_inverted_index":{"We":[0],"introduce":[1],"a":[2,13,18,52,90],"new":[3],"principle":[4,88],"for":[5],"distance":[6],"measurement":[7],"in":[8,68,76],"the":[9,26,33,38,45,62,80,83],"terahertz-wave":[10],"range":[11],"using":[12],"resonant-tunneling-diode":[14],"(RTD)":[15],"oscillator":[16],"as":[17,78],"source":[19,63],"at":[20],"511":[21],"GHz":[22],"and":[23,89],"relying":[24],"on":[25],"frequency-modulated":[27],"continuous-wave":[28],"(FMCW)":[29],"radar":[30],"technique.":[31],"Unlike":[32],"usual":[34],"FMCW":[35],"radar,":[36],"where":[37],"sawtooth":[39],"frequency":[40],"modulation":[41],"is":[42,59,79],"applied":[43],"to":[44,51],"carrier,":[46],"we":[47],"propose":[48],"applying":[49],"it":[50],"subcarrier":[53],"obtained":[54],"by":[55],"amplitude":[56],"modulation;":[57],"this":[58],"advantageous":[60],"when":[61],"cannot":[64],"be":[65,74],"controlled":[66],"precisely":[67],"oscillation":[69],"frequency,":[70],"but":[71],"can":[72],"easily":[73],"modulated":[75],"amplitude,":[77],"case":[81],"of":[82,92],"RTD":[84],"oscillator.":[85],"The":[86],"detailed":[87],"series":[91],"proof-of-concept":[93],"experimental":[94],"results":[95],"are":[96],"presented.":[97]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":2},{"year":2023,"cited_by_count":4},{"year":2022,"cited_by_count":5},{"year":2021,"cited_by_count":4}],"updated_date":"2026-06-22T08:00:12.763002","created_date":"2025-10-10T00:00:00"}