{"id":"https://openalex.org/W2109804652","doi":"https://doi.org/10.1109/newcas.2008.4606366","title":"A protection circuit for HBT RF Power Amplifier under load mismatch conditions","display_name":"A protection circuit for HBT RF Power Amplifier under load mismatch conditions","publication_year":2008,"publication_date":"2008-06-01","ids":{"openalex":"https://openalex.org/W2109804652","doi":"https://doi.org/10.1109/newcas.2008.4606366","mag":"2109804652"},"language":"en","primary_location":{"id":"doi:10.1109/newcas.2008.4606366","doi":"https://doi.org/10.1109/newcas.2008.4606366","is_oa":false,"landing_page_url":"https://doi.org/10.1109/newcas.2008.4606366","pdf_url":null,"source":{"id":"https://openalex.org/S4363608492","display_name":"IEEE Interregional NEWCAS Conference (NEWCAS)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"conference"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2008 Joint 6th International IEEE Northeast Workshop on Circuits and Systems and TAISA Conference","raw_type":"proceedings-article"},"volume":null,"type":"conference-paper","is_traditional":true,"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/A5009721428","display_name":"Walid Karoui","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Walid Karoui","raw_affiliation_strings":["Freescale Semiconductors, Toulouse, France","Freescale Semicond., Toulouse#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Freescale Semiconductors, Toulouse, France","institution_ids":[]},{"raw_affiliation_string":"Freescale Semicond., Toulouse#TAB#","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5084232131","display_name":"Thierry Parra","orcid":"https://orcid.org/0000-0002-1726-6249","observed_orcids":["https://orcid.org/0000-0002-1726-6249"]},"institutions":[{"id":"https://openalex.org/I1294671590","display_name":"Centre National de la Recherche Scientifique","ror":"https://ror.org/02feahw73","country_code":"FR","type":"government","lineage":["https://openalex.org/I1294671590"]},{"id":"https://openalex.org/I134560555","display_name":"Universit\u00e9 Toulouse III - Paul Sabatier","ror":"https://ror.org/02v6kpv12","country_code":"FR","type":"education","lineage":["https://openalex.org/I134560555","https://openalex.org/I4405258862"]},{"id":"https://openalex.org/I190497903","display_name":"Laboratoire d'Analyse et d'Architecture des Syst\u00e8mes","ror":"https://ror.org/03vcm6439","country_code":"FR","type":"facility","lineage":["https://openalex.org/I1294671590","https://openalex.org/I190497903","https://openalex.org/I193033237","https://openalex.org/I196454796","https://openalex.org/I205747304","https://openalex.org/I4210095849","https://openalex.org/I4210152422","https://openalex.org/I4210159245","https://openalex.org/I4405258862","https://openalex.org/I4405259414"]},{"id":"https://openalex.org/I4405258862","display_name":"Universit\u00e9 de Toulouse","ror":"https://ror.org/01ahyrz84","country_code":"FR","type":"education","lineage":["https://openalex.org/I4405258862"]}],"countries":["FR"],"is_corresponding":false,"raw_author_name":"Thierry Parra","raw_affiliation_strings":["LAAS-CNRS and Toulouse University, UPS, Toulouse, France","LAAS-CNRS and Toulouse University, UPS, 7 Avenue du Colonel Roche, 31077, France"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"LAAS-CNRS and Toulouse University, UPS, Toulouse, France","institution_ids":["https://openalex.org/I1294671590","https://openalex.org/I134560555","https://openalex.org/I190497903","https://openalex.org/I4405258862"]},{"raw_affiliation_string":"LAAS-CNRS and Toulouse University, UPS, 7 Avenue du Colonel Roche, 31077, France","institution_ids":["https://openalex.org/I1294671590","https://openalex.org/I134560555","https://openalex.org/I190497903"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":1.4216,"has_fulltext":false,"cited_by_count":16,"citation_normalized_percentile":{"value":0.78183351,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":97},"biblio":{"volume":null,"issue":null,"first_page":"241","last_page":"244"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11248","display_name":"Advanced Power Amplifier Design","score":0.9990000128746033,"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/T11248","display_name":"Advanced Power Amplifier Design","score":0.9990000128746033,"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":0.000699999975040555,"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/T10323","display_name":"Analog and Mixed-Signal Circuit Design","score":9.999999747378752e-05,"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/hbt","display_name":"HBT","score":0.7229999899864197},{"id":"https://openalex.org/keywords/radio-frequency-power-amplifiers","display_name":"RF power amplifier","score":0.9549999833106995},{"id":"https://openalex.org/keywords/load-mismatch","display_name":"load mismatch","score":0.5249999761581421},{"id":"https://openalex.org/keywords/current-sensor","display_name":"current sensor","score":0.7129999995231628},{"id":"https://openalex.org/keywords/vswr","display_name":"VSWR","score":0.8100000023841858},{"id":"https://openalex.org/keywords/battery-voltage","display_name":"battery voltage","score":0.5199999809265137},{"id":"https://openalex.org/keywords/failure-mechanisms","display_name":"failure mechanisms","score":0.5379999876022339},{"id":"https://openalex.org/keywords/power-efficiency","display_name":"power efficiency","score":0.37400001287460327}],"concepts":[{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.7026641368865967},{"id":"https://openalex.org/C194257627","wikidata":"https://www.wikidata.org/wiki/Q211554","display_name":"Amplifier","level":3,"score":0.6434732675552368},{"id":"https://openalex.org/C137488568","wikidata":"https://www.wikidata.org/wiki/Q5321","display_name":"Resistor","level":3,"score":0.6278725266456604},{"id":"https://openalex.org/C17829176","wikidata":"https://www.wikidata.org/wiki/Q179043","display_name":"Electrical impedance","level":2,"score":0.5712976455688477},{"id":"https://openalex.org/C29586797","wikidata":"https://www.wikidata.org/wiki/Q5163663","display_name":"Constant power circuit","level":4,"score":0.5515137910842896},{"id":"https://openalex.org/C204106720","wikidata":"https://www.wikidata.org/wiki/Q15856134","display_name":"Current limiting","level":3,"score":0.5506526827812195},{"id":"https://openalex.org/C165801399","wikidata":"https://www.wikidata.org/wiki/Q25428","display_name":"Voltage","level":2,"score":0.5156530141830444},{"id":"https://openalex.org/C58112919","wikidata":"https://www.wikidata.org/wiki/Q631203","display_name":"Output impedance","level":3,"score":0.5067306160926819},{"id":"https://openalex.org/C163258240","wikidata":"https://www.wikidata.org/wiki/Q25342","display_name":"Power (physics)","level":2,"score":0.49163323640823364},{"id":"https://openalex.org/C173408217","wikidata":"https://www.wikidata.org/wiki/Q1428898","display_name":"Heterojunction bipolar transistor","level":5,"score":0.47757914662361145},{"id":"https://openalex.org/C26262908","wikidata":"https://www.wikidata.org/wiki/Q1307489","display_name":"Input impedance","level":3,"score":0.42911043763160706},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.3786325454711914},{"id":"https://openalex.org/C151799858","wikidata":"https://www.wikidata.org/wiki/Q587008","display_name":"Switched-mode power supply","level":3,"score":0.373754620552063},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.35179173946380615},{"id":"https://openalex.org/C172385210","wikidata":"https://www.wikidata.org/wiki/Q5339","display_name":"Transistor","level":3,"score":0.292414128780365},{"id":"https://openalex.org/C46362747","wikidata":"https://www.wikidata.org/wiki/Q173431","display_name":"CMOS","level":2,"score":0.1897079348564148},{"id":"https://openalex.org/C23061349","wikidata":"https://www.wikidata.org/wiki/Q188946","display_name":"Bipolar junction transistor","level":4,"score":0.17896106839179993},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.12047901749610901},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/newcas.2008.4606366","doi":"https://doi.org/10.1109/newcas.2008.4606366","is_oa":false,"landing_page_url":"https://doi.org/10.1109/newcas.2008.4606366","pdf_url":null,"source":{"id":"https://openalex.org/S4363608492","display_name":"IEEE Interregional NEWCAS Conference (NEWCAS)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"conference"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2008 Joint 6th International IEEE Northeast Workshop on Circuits and Systems and TAISA Conference","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":7,"referenced_works":["https://openalex.org/W1568952309","https://openalex.org/W1851708801","https://openalex.org/W2096104845","https://openalex.org/W2098904454","https://openalex.org/W2100085660","https://openalex.org/W2131154815","https://openalex.org/W2153069736"],"related_works":["https://openalex.org/W2133532383","https://openalex.org/W2981396864","https://openalex.org/W1851708801","https://openalex.org/W1509441018","https://openalex.org/W4388288741","https://openalex.org/W2189578343","https://openalex.org/W2169522336","https://openalex.org/W2986629694","https://openalex.org/W2786620468","https://openalex.org/W2159851951"],"abstract_inverted_index":{"This":[0],"paper":[1],"investigates":[2],"the":[3,29,85,92,102,111,120,125,130],"radiofrequency":[4],"failure":[5,30],"mechanisms":[6,31],"of":[7,122],"power":[8,98,149,151],"amplifier":[9],"(PA)":[10],"integrated":[11],"in":[12,95],"an":[13],"HBT":[14],"technology,":[15],"and":[16,43,134,150],"proposes":[17],"a":[18,35,64,81,154],"circuit":[19,88],"solution":[20],"for":[21,136],"PA":[22,36,86,93,112],"protection":[23,126],"against":[24,56],"impedance":[25,50],"mismatches.":[26],"It":[27],"exposes":[28],"that":[32,89],"occur":[33],"when":[34,91],"under":[37],"extreme":[38],"conditions":[39,99],"(high":[40],"battery":[41],"voltage":[42,58,133],"high":[44,57,96],"input":[45],"power)":[46],"is":[47,60,77,94,127],"exposed":[48],"to":[49,80,141,144],"mismatches":[51],"at":[52],"its":[53],"output.":[54],"Protection":[55],"operation":[59],"addressed":[61],"by":[62,100],"integrating":[63],"parallel":[65],"base":[66],"resistor":[67],"which":[68],"increases":[69],"significantly":[70],"emitter":[71],"collector":[72,103,131],"breakdown.":[73],"A":[74],"current":[75],"sensor":[76],"then":[78],"associated":[79],"feedback":[82],"loop":[83],"on":[84,110,129,153],"biasing":[87],"operates":[90],"dissipated":[97],"limiting":[101],"current.":[104],"These":[105],"protections":[106],"are":[107,158],"easily":[108],"implemented":[109],"die":[113],"without":[114],"any":[115],"extra":[116],"area.":[117],"Experiments":[118],"confirm":[119],"effectiveness":[121],"these":[123],"principles:":[124],"indexed":[128],"supply":[132],"acts":[135],"all":[137],"output":[138,148],"loads":[139],"leading":[140],"VSWR":[142],"up":[143],"1":[145],"0:1,":[146],"whereas":[147],"efficiency":[152],"50":[155],"Omega":[156],"load":[157],"not":[159],"affected.":[160]},"counts_by_year":[{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":1},{"year":2020,"cited_by_count":1},{"year":2019,"cited_by_count":3},{"year":2018,"cited_by_count":1},{"year":2017,"cited_by_count":1},{"year":2016,"cited_by_count":1},{"year":2015,"cited_by_count":1},{"year":2014,"cited_by_count":1},{"year":2013,"cited_by_count":1}],"updated_date":"2026-11-07T11:25:07.637180","created_date":"2016-06-24T00:00:00"}