{"id":"https://openalex.org/W3118947934","doi":"https://doi.org/10.1631/fitee.1900653","title":"A 0.20\u20132.43 GHz fractional-N frequency synthesizer with optimized VCO and reduced current mismatch CP","display_name":"A 0.20\u20132.43 GHz fractional-N frequency synthesizer with optimized VCO and reduced current mismatch CP","publication_year":2021,"publication_date":"2021-01-08","ids":{"openalex":"https://openalex.org/W3118947934","doi":"https://doi.org/10.1631/fitee.1900653","mag":"3118947934"},"language":"en","primary_location":{"id":"doi:10.1631/fitee.1900653","is_oa":false,"landing_page_url":"https://doi.org/10.1631/fitee.1900653","pdf_url":null,"source":{"id":"https://openalex.org/S4210189857","display_name":"Frontiers of Information Technology & Electronic Engineering","issn_l":"2095-9184","issn":["2095-9184","2095-9230"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Frontiers of Information Technology & Electronic Engineering","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/A5101808316","display_name":"Wei Zou","orcid":null},"institutions":[{"id":"https://openalex.org/I47720641","display_name":"Huazhong University of Science and Technology","ror":"https://ror.org/00p991c53","country_code":"CN","type":"education","lineage":["https://openalex.org/I47720641"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Wei Zou","raw_affiliation_strings":["School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, 430074, China"],"raw_orcid":"https://orcid.org/0000-0002-8683-9880","affiliations":[{"raw_affiliation_string":"School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, 430074, China","institution_ids":["https://openalex.org/I47720641"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5029185633","display_name":"Daming Ren","orcid":"https://orcid.org/0000-0002-2903-2327"},"institutions":[{"id":"https://openalex.org/I47720641","display_name":"Huazhong University of Science and Technology","ror":"https://ror.org/00p991c53","country_code":"CN","type":"education","lineage":["https://openalex.org/I47720641"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Daming Ren","raw_affiliation_strings":["School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, 430074, China"],"raw_orcid":"https://orcid.org/0000-0002-2903-2327","affiliations":[{"raw_affiliation_string":"School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, 430074, China","institution_ids":["https://openalex.org/I47720641"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5073441672","display_name":"Xuecheng Zou","orcid":"https://orcid.org/0000-0002-6404-5270"},"institutions":[{"id":"https://openalex.org/I47720641","display_name":"Huazhong University of Science and Technology","ror":"https://ror.org/00p991c53","country_code":"CN","type":"education","lineage":["https://openalex.org/I47720641"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xuecheng Zou","raw_affiliation_strings":["School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, 430074, China"],"raw_orcid":"https://orcid.org/0000-0002-6404-5270","affiliations":[{"raw_affiliation_string":"School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, 430074, China","institution_ids":["https://openalex.org/I47720641"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5101808316"],"corresponding_institution_ids":["https://openalex.org/I47720641"],"apc_list":null,"apc_paid":null,"fwci":0.3934,"has_fulltext":false,"cited_by_count":4,"citation_normalized_percentile":{"value":0.5756878,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":96},"biblio":{"volume":"22","issue":"2","first_page":"251","last_page":"261"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11417","display_name":"Advancements in PLL and VCO 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/T11417","display_name":"Advancements in PLL and VCO 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/T10187","display_name":"Radio Frequency Integrated Circuit Design","score":0.9973000288009644,"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/T11429","display_name":"Semiconductor Lasers and Optical Devices","score":0.9972000122070312,"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/phase-noise","display_name":"Phase noise","score":0.8515408039093018},{"id":"https://openalex.org/keywords/dbc","display_name":"dBc","score":0.8464669585227966},{"id":"https://openalex.org/keywords/voltage-controlled-oscillator","display_name":"Voltage-controlled oscillator","score":0.7911776304244995},{"id":"https://openalex.org/keywords/phase-locked-loop","display_name":"Phase-locked loop","score":0.7419387102127075},{"id":"https://openalex.org/keywords/frequency-synthesizer","display_name":"Frequency synthesizer","score":0.7028683423995972},{"id":"https://openalex.org/keywords/pll-multibit","display_name":"PLL multibit","score":0.5323895215988159},{"id":"https://openalex.org/keywords/jitter","display_name":"Jitter","score":0.48674678802490234},{"id":"https://openalex.org/keywords/inductor","display_name":"Inductor","score":0.46518510580062866},{"id":"https://openalex.org/keywords/cmos","display_name":"CMOS","score":0.4513241648674011},{"id":"https://openalex.org/keywords/electrical-engineering","display_name":"Electrical engineering","score":0.44828709959983826},{"id":"https://openalex.org/keywords/direct-digital-synthesizer","display_name":"Direct digital synthesizer","score":0.41604483127593994},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.39457884430885315},{"id":"https://openalex.org/keywords/materials-science","display_name":"Materials science","score":0.36796754598617554},{"id":"https://openalex.org/keywords/voltage","display_name":"Voltage","score":0.36328768730163574},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.35615575313568115},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.2929003834724426}],"concepts":[{"id":"https://openalex.org/C89631360","wikidata":"https://www.wikidata.org/wiki/Q1428766","display_name":"Phase noise","level":2,"score":0.8515408039093018},{"id":"https://openalex.org/C193523891","wikidata":"https://www.wikidata.org/wiki/Q1771950","display_name":"dBc","level":3,"score":0.8464669585227966},{"id":"https://openalex.org/C5291336","wikidata":"https://www.wikidata.org/wiki/Q852341","display_name":"Voltage-controlled oscillator","level":3,"score":0.7911776304244995},{"id":"https://openalex.org/C12707504","wikidata":"https://www.wikidata.org/wiki/Q52637","display_name":"Phase-locked loop","level":3,"score":0.7419387102127075},{"id":"https://openalex.org/C182099602","wikidata":"https://www.wikidata.org/wiki/Q2660678","display_name":"Frequency synthesizer","level":4,"score":0.7028683423995972},{"id":"https://openalex.org/C77881186","wikidata":"https://www.wikidata.org/wiki/Q7119642","display_name":"PLL multibit","level":4,"score":0.5323895215988159},{"id":"https://openalex.org/C134652429","wikidata":"https://www.wikidata.org/wiki/Q1052698","display_name":"Jitter","level":2,"score":0.48674678802490234},{"id":"https://openalex.org/C144534570","wikidata":"https://www.wikidata.org/wiki/Q5325","display_name":"Inductor","level":3,"score":0.46518510580062866},{"id":"https://openalex.org/C46362747","wikidata":"https://www.wikidata.org/wiki/Q173431","display_name":"CMOS","level":2,"score":0.4513241648674011},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.44828709959983826},{"id":"https://openalex.org/C166089067","wikidata":"https://www.wikidata.org/wiki/Q1227465","display_name":"Direct digital synthesizer","level":5,"score":0.41604483127593994},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.39457884430885315},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.36796754598617554},{"id":"https://openalex.org/C165801399","wikidata":"https://www.wikidata.org/wiki/Q25428","display_name":"Voltage","level":2,"score":0.36328768730163574},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.35615575313568115},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.2929003834724426}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1631/fitee.1900653","is_oa":false,"landing_page_url":"https://doi.org/10.1631/fitee.1900653","pdf_url":null,"source":{"id":"https://openalex.org/S4210189857","display_name":"Frontiers of Information Technology & Electronic Engineering","issn_l":"2095-9184","issn":["2095-9184","2095-9230"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Frontiers of Information Technology & Electronic Engineering","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Affordable and clean energy","id":"https://metadata.un.org/sdg/7","score":0.8299999833106995}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":32,"referenced_works":["https://openalex.org/W1492984241","https://openalex.org/W1843521679","https://openalex.org/W1993992280","https://openalex.org/W1994753738","https://openalex.org/W1998456226","https://openalex.org/W2010437213","https://openalex.org/W2013230846","https://openalex.org/W2014748579","https://openalex.org/W2037381402","https://openalex.org/W2041412774","https://openalex.org/W2072192908","https://openalex.org/W2072473787","https://openalex.org/W2104924496","https://openalex.org/W2118269375","https://openalex.org/W2126997726","https://openalex.org/W2131053965","https://openalex.org/W2150524153","https://openalex.org/W2150650883","https://openalex.org/W2150912637","https://openalex.org/W2152126312","https://openalex.org/W2159820023","https://openalex.org/W2160412553","https://openalex.org/W2166827593","https://openalex.org/W2167706963","https://openalex.org/W2342426112","https://openalex.org/W2402570361","https://openalex.org/W2508414758","https://openalex.org/W2573263734","https://openalex.org/W2611384543","https://openalex.org/W2791868503","https://openalex.org/W2912134356","https://openalex.org/W2921503264"],"related_works":["https://openalex.org/W2094999635","https://openalex.org/W2081086825","https://openalex.org/W2760677310","https://openalex.org/W2072473787","https://openalex.org/W2081612793","https://openalex.org/W4236465264","https://openalex.org/W2105006421","https://openalex.org/W4239908523","https://openalex.org/W1564318557","https://openalex.org/W2110764323"],"abstract_inverted_index":{"A":[0,62],"0.20\u20132.43":[1],"GHz":[2],"fractional-N":[3],"frequency":[4,46],"synthesizer":[5,47,120],"is":[6,69,87,144,164],"presented":[7,88],"for":[8],"multi-band":[9],"wireless":[10],"communication":[11],"systems,":[12],"in":[13,104],"which":[14],"the":[15,36,73,77,81,91,94,98,110,138,148,152,168],"scheme":[16],"adopts":[17],"low":[18],"phase":[19,38,83,124,132],"noise":[20,39,125,133],"voltage-controlled":[21],"oscillators":[22],"(VCOs)":[23],"and":[24,56,79,129,151,167],"a":[25,41,57,65,105],"charge":[26],"pump":[27],"(CP)":[28],"with":[29,64],"reduced":[30],"current":[31,74,95,162],"mismatch.":[32],"VCOs":[33],"that":[34],"determine":[35],"out-band":[37,131],"of":[40,76,93,101,126,134],"phase-locked":[42],"loop":[43],"(PLL)":[44],"based":[45],"are":[48,156],"optimized":[49],"using":[50],"an":[51,122,130],"automatic":[52],"amplitude":[53],"control":[54],"technique":[55],"high-quality":[58],"factor":[59],"figure-8-shaped":[60],"inductor.":[61],"CP":[63,78],"mismatch":[66,96],"suppression":[67],"architecture":[68],"proposed":[70],"to":[71,89,115],"improve":[72],"match":[75],"reduce":[80],"PLL":[82,119],"errors.":[84],"Theoretical":[85],"analysis":[86],"investigate":[90],"influence":[92],"on":[97],"output":[99],"performance":[100],"PLLs.":[102],"Fabricated":[103],"TSMC":[106],"0.18-\u00b5m":[107],"CMOS":[108],"process,":[109],"prototype":[111],"operates":[112],"from":[113],"0.20":[114],"2.43":[116],"GHz.":[117],"The":[118,141,161],"achieves":[121],"in-band":[123],"\u221296.8":[127],"dBc/Hz":[128,136],"\u2212122.8":[135],"at":[137],"2.43-GHz":[139],"carrier.":[140],"root-mean-square":[142],"jitter":[143],"1.2":[145],"ps":[146],"under":[147],"worst":[149],"case,":[150],"measured":[153],"reference":[154],"spurs":[155],"less":[157],"than":[158],"\u221265.3":[159],"dBc.":[160],"consumption":[163],"15.2":[165],"mA":[166],"die":[169],"occupies":[170],"850":[171],"\u00b5m\u00d7920\u00b5m.":[172]},"counts_by_year":[{"year":2024,"cited_by_count":2},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}