{"id":"https://openalex.org/W3026896991","doi":"https://doi.org/10.1109/jssc.2020.2993720","title":"Highly Linear High-Power 802.11ac/ax WLAN SiGe HBT Power Amplifiers With a Compact 2nd-Harmonic-Shorted Four-Way Transformer and a Thermally Compensating Dynamic Bias Circuit","display_name":"Highly Linear High-Power 802.11ac/ax WLAN SiGe HBT Power Amplifiers With a Compact 2nd-Harmonic-Shorted Four-Way Transformer and a Thermally Compensating Dynamic Bias Circuit","publication_year":2020,"publication_date":"2020-05-20","ids":{"openalex":"https://openalex.org/W3026896991","doi":"https://doi.org/10.1109/jssc.2020.2993720","mag":"3026896991"},"language":"en","primary_location":{"id":"doi:10.1109/jssc.2020.2993720","is_oa":false,"landing_page_url":"https://doi.org/10.1109/jssc.2020.2993720","pdf_url":null,"source":{"id":"https://openalex.org/S83637746","display_name":"IEEE Journal of Solid-State Circuits","issn_l":"0018-9200","issn":["0018-9200","1558-173X"],"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 Journal of Solid-State Circuits","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/A5076380483","display_name":"Inchan Ju","orcid":"https://orcid.org/0000-0002-9362-5506"},"institutions":[{"id":"https://openalex.org/I130701444","display_name":"Georgia Institute of Technology","ror":"https://ror.org/01zkghx44","country_code":"US","type":"education","lineage":["https://openalex.org/I130701444"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Inchan Ju","raw_affiliation_strings":["School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, USA"],"raw_orcid":"https://orcid.org/0000-0002-9362-5506","affiliations":[{"raw_affiliation_string":"School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta, USA","institution_ids":["https://openalex.org/I130701444"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5059693864","display_name":"Yunyi Gong","orcid":"https://orcid.org/0000-0003-2795-4544"},"institutions":[{"id":"https://openalex.org/I4210087596","display_name":"Qualcomm (United States)","ror":"https://ror.org/002zrf773","country_code":"US","type":"company","lineage":["https://openalex.org/I4210087596"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Yunyi Gong","raw_affiliation_strings":["Qualcomm Atheros Inc., San Jose, USA"],"raw_orcid":"https://orcid.org/0000-0003-2795-4544","affiliations":[{"raw_affiliation_string":"Qualcomm Atheros Inc., San Jose, USA","institution_ids":["https://openalex.org/I4210087596"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5073899315","display_name":"John D. Cressler","orcid":"https://orcid.org/0000-0001-8268-5135"},"institutions":[{"id":"https://openalex.org/I4210087596","display_name":"Qualcomm (United States)","ror":"https://ror.org/002zrf773","country_code":"US","type":"company","lineage":["https://openalex.org/I4210087596"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"John D. Cressler","raw_affiliation_strings":["Qualcomm Atheros Inc., San Jose, USA"],"raw_orcid":"https://orcid.org/0000-0001-8268-5135","affiliations":[{"raw_affiliation_string":"Qualcomm Atheros Inc., San Jose, USA","institution_ids":["https://openalex.org/I4210087596"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":2045,"currency":"USD","value_usd":2045},"apc_paid":null,"fwci":2.419,"has_fulltext":false,"cited_by_count":54,"citation_normalized_percentile":{"value":0.89222127,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":99},"biblio":{"volume":"55","issue":"9","first_page":"2356","last_page":"2370"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10187","display_name":"Radio Frequency Integrated Circuit Design","score":0.9998999834060669,"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/T10187","display_name":"Radio Frequency Integrated Circuit Design","score":0.9998999834060669,"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/T11248","display_name":"Advanced Power Amplifier Design","score":0.9998999834060669,"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/T10262","display_name":"Microwave Engineering and Waveguides","score":0.9965000152587891,"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/heterojunction-bipolar-transistor","display_name":"Heterojunction bipolar transistor","score":0.876785397529602},{"id":"https://openalex.org/keywords/amplifier","display_name":"Amplifier","score":0.7918705940246582},{"id":"https://openalex.org/keywords/transformer","display_name":"Transformer","score":0.5561288595199585},{"id":"https://openalex.org/keywords/electrical-engineering","display_name":"Electrical engineering","score":0.5521685481071472},{"id":"https://openalex.org/keywords/transistor","display_name":"Transistor","score":0.5258006453514099},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.46622681617736816},{"id":"https://openalex.org/keywords/materials-science","display_name":"Materials science","score":0.39813265204429626},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.38639867305755615},{"id":"https://openalex.org/keywords/bipolar-junction-transistor","display_name":"Bipolar junction transistor","score":0.38295578956604004},{"id":"https://openalex.org/keywords/cmos","display_name":"CMOS","score":0.25133857131004333},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.22407671809196472},{"id":"https://openalex.org/keywords/voltage","display_name":"Voltage","score":0.1246316134929657}],"concepts":[{"id":"https://openalex.org/C173408217","wikidata":"https://www.wikidata.org/wiki/Q1428898","display_name":"Heterojunction bipolar transistor","level":5,"score":0.876785397529602},{"id":"https://openalex.org/C194257627","wikidata":"https://www.wikidata.org/wiki/Q211554","display_name":"Amplifier","level":3,"score":0.7918705940246582},{"id":"https://openalex.org/C66322947","wikidata":"https://www.wikidata.org/wiki/Q11658","display_name":"Transformer","level":3,"score":0.5561288595199585},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.5521685481071472},{"id":"https://openalex.org/C172385210","wikidata":"https://www.wikidata.org/wiki/Q5339","display_name":"Transistor","level":3,"score":0.5258006453514099},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.46622681617736816},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.39813265204429626},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.38639867305755615},{"id":"https://openalex.org/C23061349","wikidata":"https://www.wikidata.org/wiki/Q188946","display_name":"Bipolar junction transistor","level":4,"score":0.38295578956604004},{"id":"https://openalex.org/C46362747","wikidata":"https://www.wikidata.org/wiki/Q173431","display_name":"CMOS","level":2,"score":0.25133857131004333},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.22407671809196472},{"id":"https://openalex.org/C165801399","wikidata":"https://www.wikidata.org/wiki/Q25428","display_name":"Voltage","level":2,"score":0.1246316134929657}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/jssc.2020.2993720","is_oa":false,"landing_page_url":"https://doi.org/10.1109/jssc.2020.2993720","pdf_url":null,"source":{"id":"https://openalex.org/S83637746","display_name":"IEEE Journal of Solid-State Circuits","issn_l":"0018-9200","issn":["0018-9200","1558-173X"],"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 Journal of Solid-State Circuits","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/7","display_name":"Affordable and clean energy","score":0.8600000143051147}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":51,"referenced_works":["https://openalex.org/W1976824538","https://openalex.org/W2000225265","https://openalex.org/W2049089411","https://openalex.org/W2051909620","https://openalex.org/W2066393109","https://openalex.org/W2069082922","https://openalex.org/W2070070678","https://openalex.org/W2082213573","https://openalex.org/W2101155304","https://openalex.org/W2104183221","https://openalex.org/W2106589079","https://openalex.org/W2108812909","https://openalex.org/W2122507874","https://openalex.org/W2123233947","https://openalex.org/W2128492859","https://openalex.org/W2129918593","https://openalex.org/W2133795844","https://openalex.org/W2136081856","https://openalex.org/W2138984605","https://openalex.org/W2146221325","https://openalex.org/W2148565306","https://openalex.org/W2159728682","https://openalex.org/W2166432951","https://openalex.org/W2167679619","https://openalex.org/W2175319285","https://openalex.org/W2176854334","https://openalex.org/W2178902883","https://openalex.org/W2291980487","https://openalex.org/W2316344264","https://openalex.org/W2318138962","https://openalex.org/W2320527448","https://openalex.org/W2422660144","https://openalex.org/W2465474316","https://openalex.org/W2535404654","https://openalex.org/W2592171813","https://openalex.org/W2592556891","https://openalex.org/W2594407198","https://openalex.org/W2606979351","https://openalex.org/W2626052660","https://openalex.org/W2735099734","https://openalex.org/W2770834829","https://openalex.org/W2885105036","https://openalex.org/W2885452198","https://openalex.org/W2885845003","https://openalex.org/W2889861971","https://openalex.org/W2921364487","https://openalex.org/W2921931589","https://openalex.org/W6668077997","https://openalex.org/W6734229121","https://openalex.org/W6734341277","https://openalex.org/W6753847575"],"related_works":["https://openalex.org/W1567282658","https://openalex.org/W2393767093","https://openalex.org/W112868940","https://openalex.org/W2370543964","https://openalex.org/W1169114565","https://openalex.org/W3151307272","https://openalex.org/W1013142806","https://openalex.org/W2102511360","https://openalex.org/W2066462051","https://openalex.org/W2086501367"],"abstract_inverted_index":{"This":[0,160],"article":[1],"presents":[2],"the":[3,32,44,51,102,125,129,135,141,162,165,168,176,215,224,233],"design":[4,45,231],"of":[5,35,124,128,143,156,164,244],"a":[6,81,89,144,147,182,242],"highly":[7],"linear":[8,57],"high-power":[9],"silicon-germanium":[10],"(SiGe)":[11],"heterojunction":[12],"bipolar":[13],"transistor":[14,169],"(HBT)":[15],"802.11ac/a\u03c7":[16],"wireless":[17],"local":[18],"area":[19],"network":[20],"(WLAN)":[21],"power":[22,59,78],"amplifiers":[23],"(PAs).":[24],"The":[25,173,230],"challenges":[26],"associated":[27],"with":[28,110,146,175,190,218,238],"electrothermal":[29,52,170],"effects":[30,107],"on":[31,167],"dynamic":[33,62,97],"operation":[34],"WLAN":[36],"PAs":[37],"are":[38,131],"first":[39],"discussed.":[40],"We":[41],"then":[42],"propose":[43],"methods":[46],"that":[47,100,155,223],"take":[48],"into":[49],"account":[50],"transient":[53,171],"effect":[54],"to":[55,75],"improve":[56],"output":[58,70,126,150,179],"(P\u03bfUT)":[60],"and":[61,80,104,121],"error":[63],"vector":[64],"magnitude":[65],"(DEVM).":[66],"A":[67,94],"compact":[68],"four-way":[69],"transformer":[71],"balun":[72],"is":[73,85,108,152,227],"proposed":[74,225],"achieve":[76],"efficient":[77],"combining,":[79],"built-in":[82],"2nd-harmonic":[83],"short":[84],"demonstrated":[86],"by":[87],"using":[88],"novel":[90],"multi-layered":[91],"metallization":[92],"scheme.":[93],"thermally":[95,228],"compensating":[96],"bias":[98],"circuit":[99],"improves":[101],"DEVM":[103,142,210,243],"reduces":[105],"memory":[106],"designed":[109],"an":[111,199],"integrated":[112],"temperature":[113],"sensor.":[114],"Different":[115],"SiGe":[116],"HBT":[117],"array":[118],"layouts,":[119],"laterally":[120,148,177],"vertically":[122],"arranged,":[123],"stage":[127,151,180],"PA":[130,145,174,226],"also":[132],"investigated.":[133],"With":[134],"802.11ac":[136,200],"MCS9":[137,201],"VHT80":[138,202,236],"test":[139,203,216],"signals,":[140],"arranged":[149,178],"lower":[153],"than":[154],"its":[157],"vertical":[158],"counterpart.":[159],"suggests":[161],"importance":[163],"layout":[166],"effect.":[172],"shows":[181],"P\u03bfUTof":[183],"22.5/23.6/23.2":[184],"dBm":[185],"(DEVM":[186],"=":[187],"-35":[188],"dB)":[189],"10.0/12.2/11.2%":[191],"power-added":[192],"efficiency":[193],"(PAE)":[194],"at":[195,205],"5210/5530/5855":[196],"MHz":[197],"under":[198,214],"signal":[204,217],"50%":[206],"duty":[207,220],"cycle.":[208],"Good":[209],"performance":[211],"was":[212],"measured":[213],"various":[219],"cycles,":[221],"indicating":[222],"robust.":[229],"supports":[232],"802.11ax":[234],"MCS11":[235],"signals":[237],"19.4-dBm":[239],"P\u03bfUT,":[240],"satisfying":[241],"-40":[245],"dB.":[246]},"counts_by_year":[{"year":2026,"cited_by_count":3},{"year":2025,"cited_by_count":13},{"year":2024,"cited_by_count":10},{"year":2023,"cited_by_count":13},{"year":2022,"cited_by_count":11},{"year":2021,"cited_by_count":3},{"year":2020,"cited_by_count":1}],"updated_date":"2026-08-28T12:50:07.497085","created_date":"2025-10-10T00:00:00"}
