{"id":"https://openalex.org/W7128644692","doi":"https://doi.org/10.1109/tcsii.2026.3663733","title":"A High Efficiency Doherty Power Amplifier MMIC With Active Second Harmonic Injection Technique","display_name":"A High Efficiency Doherty Power Amplifier MMIC With Active Second Harmonic Injection Technique","publication_year":2026,"publication_date":"2026-02-11","ids":{"openalex":"https://openalex.org/W7128644692","doi":"https://doi.org/10.1109/tcsii.2026.3663733"},"language":null,"primary_location":{"id":"doi:10.1109/tcsii.2026.3663733","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tcsii.2026.3663733","pdf_url":null,"source":{"id":"https://openalex.org/S93916849","display_name":"IEEE Transactions on Circuits & Systems II Express Briefs","issn_l":"1549-7747","issn":["1549-7747","1558-3791"],"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 Circuits and Systems II: Express Briefs","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/A5079464244","display_name":"Lin Yang","orcid":"https://orcid.org/0000-0002-1981-5977"},"institutions":[{"id":"https://openalex.org/I34155123","display_name":"Hebei University of Science and Technology","ror":"https://ror.org/05h3pkk68","country_code":"CN","type":"education","lineage":["https://openalex.org/I34155123"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Lin Yang","raw_affiliation_strings":["School of Information Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, China"],"affiliations":[{"raw_affiliation_string":"School of Information Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, China","institution_ids":["https://openalex.org/I34155123"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5125637788","display_name":"Shihua Liu","orcid":null},"institutions":[{"id":"https://openalex.org/I34155123","display_name":"Hebei University of Science and Technology","ror":"https://ror.org/05h3pkk68","country_code":"CN","type":"education","lineage":["https://openalex.org/I34155123"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Shihua Liu","raw_affiliation_strings":["School of Information Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, China"],"affiliations":[{"raw_affiliation_string":"School of Information Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, China","institution_ids":["https://openalex.org/I34155123"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5125653627","display_name":"Xingyuan Fu","orcid":null},"institutions":[{"id":"https://openalex.org/I34155123","display_name":"Hebei University of Science and Technology","ror":"https://ror.org/05h3pkk68","country_code":"CN","type":"education","lineage":["https://openalex.org/I34155123"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xingyuan Fu","raw_affiliation_strings":["School of Information Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, China"],"affiliations":[{"raw_affiliation_string":"School of Information Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, China","institution_ids":["https://openalex.org/I34155123"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5125637994","display_name":"Ming Zhang","orcid":null},"institutions":[{"id":"https://openalex.org/I34155123","display_name":"Hebei University of Science and Technology","ror":"https://ror.org/05h3pkk68","country_code":"CN","type":"education","lineage":["https://openalex.org/I34155123"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Ming Zhang","raw_affiliation_strings":["School of Information Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, China"],"affiliations":[{"raw_affiliation_string":"School of Information Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, China","institution_ids":["https://openalex.org/I34155123"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5125639065","display_name":"Baozhu Wang","orcid":null},"institutions":[{"id":"https://openalex.org/I34155123","display_name":"Hebei University of Science and Technology","ror":"https://ror.org/05h3pkk68","country_code":"CN","type":"education","lineage":["https://openalex.org/I34155123"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Baozhu Wang","raw_affiliation_strings":["School of Information Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, China"],"affiliations":[{"raw_affiliation_string":"School of Information Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, China","institution_ids":["https://openalex.org/I34155123"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5125667308","display_name":"Qi Han","orcid":null},"institutions":[{"id":"https://openalex.org/I34155123","display_name":"Hebei University of Science and Technology","ror":"https://ror.org/05h3pkk68","country_code":"CN","type":"education","lineage":["https://openalex.org/I34155123"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Qi Han","raw_affiliation_strings":["School of Information Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, China"],"affiliations":[{"raw_affiliation_string":"School of Information Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, China","institution_ids":["https://openalex.org/I34155123"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5125641149","display_name":"YuHang He","orcid":null},"institutions":[{"id":"https://openalex.org/I34155123","display_name":"Hebei University of Science and Technology","ror":"https://ror.org/05h3pkk68","country_code":"CN","type":"education","lineage":["https://openalex.org/I34155123"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"YuHang He","raw_affiliation_strings":["School of Information Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, China"],"affiliations":[{"raw_affiliation_string":"School of Information Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, China","institution_ids":["https://openalex.org/I34155123"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5112786696","display_name":"Weimin Hou","orcid":null},"institutions":[{"id":"https://openalex.org/I34155123","display_name":"Hebei University of Science and Technology","ror":"https://ror.org/05h3pkk68","country_code":"CN","type":"education","lineage":["https://openalex.org/I34155123"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Weimin Hou","raw_affiliation_strings":["School of Information Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, China"],"affiliations":[{"raw_affiliation_string":"School of Information Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, China","institution_ids":["https://openalex.org/I34155123"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":8,"corresponding_author_ids":["https://openalex.org/A5079464244"],"corresponding_institution_ids":["https://openalex.org/I34155123"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.41687587,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"73","issue":"4","first_page":"443","last_page":"447"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11248","display_name":"Advanced Power Amplifier Design","score":0.9950000047683716,"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":0.9950000047683716,"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":0.0015999999595806003,"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":0.001500000013038516,"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/monolithic-microwave-integrated-circuit","display_name":"Monolithic microwave integrated circuit","score":0.7786999940872192},{"id":"https://openalex.org/keywords/amplifier","display_name":"Amplifier","score":0.7178000211715698},{"id":"https://openalex.org/keywords/doherty-amplifier","display_name":"Doherty amplifier","score":0.6327000260353088},{"id":"https://openalex.org/keywords/broadband","display_name":"Broadband","score":0.5885000228881836},{"id":"https://openalex.org/keywords/harmonic","display_name":"Harmonic","score":0.5699999928474426},{"id":"https://openalex.org/keywords/power-added-efficiency","display_name":"Power-added efficiency","score":0.5059000253677368},{"id":"https://openalex.org/keywords/waveform","display_name":"Waveform","score":0.43700000643730164},{"id":"https://openalex.org/keywords/power","display_name":"Power (physics)","score":0.4293999969959259}],"concepts":[{"id":"https://openalex.org/C128450285","wikidata":"https://www.wikidata.org/wiki/Q1945036","display_name":"Monolithic microwave integrated circuit","level":4,"score":0.7786999940872192},{"id":"https://openalex.org/C194257627","wikidata":"https://www.wikidata.org/wiki/Q211554","display_name":"Amplifier","level":3,"score":0.7178000211715698},{"id":"https://openalex.org/C2779809587","wikidata":"https://www.wikidata.org/wiki/Q5288561","display_name":"Doherty amplifier","level":5,"score":0.6327000260353088},{"id":"https://openalex.org/C509933004","wikidata":"https://www.wikidata.org/wiki/Q194163","display_name":"Broadband","level":2,"score":0.5885000228881836},{"id":"https://openalex.org/C127934551","wikidata":"https://www.wikidata.org/wiki/Q1148098","display_name":"Harmonic","level":2,"score":0.5699999928474426},{"id":"https://openalex.org/C129231560","wikidata":"https://www.wikidata.org/wiki/Q7236462","display_name":"Power-added efficiency","level":5,"score":0.5059000253677368},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.5047000050544739},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.477400004863739},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.4702000021934509},{"id":"https://openalex.org/C197424946","wikidata":"https://www.wikidata.org/wiki/Q1165717","display_name":"Waveform","level":3,"score":0.43700000643730164},{"id":"https://openalex.org/C163258240","wikidata":"https://www.wikidata.org/wiki/Q25342","display_name":"Power (physics)","level":2,"score":0.4293999969959259},{"id":"https://openalex.org/C71041172","wikidata":"https://www.wikidata.org/wiki/Q6553412","display_name":"Linear amplifier","level":5,"score":0.3612000048160553},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.34049999713897705},{"id":"https://openalex.org/C199501884","wikidata":"https://www.wikidata.org/wiki/Q5425387","display_name":"FET amplifier","level":5,"score":0.3197000026702881},{"id":"https://openalex.org/C49040817","wikidata":"https://www.wikidata.org/wiki/Q193091","display_name":"Optoelectronics","level":1,"score":0.31610000133514404},{"id":"https://openalex.org/C131770355","wikidata":"https://www.wikidata.org/wiki/Q876215","display_name":"Harmonic analysis","level":2,"score":0.3082999885082245},{"id":"https://openalex.org/C11930861","wikidata":"https://www.wikidata.org/wiki/Q181417","display_name":"Frequency modulation","level":3,"score":0.3057999908924103},{"id":"https://openalex.org/C123079801","wikidata":"https://www.wikidata.org/wiki/Q750240","display_name":"Modulation (music)","level":2,"score":0.3037000000476837},{"id":"https://openalex.org/C196054291","wikidata":"https://www.wikidata.org/wiki/Q7276624","display_name":"RF power amplifier","level":4,"score":0.3034999966621399},{"id":"https://openalex.org/C201905106","wikidata":"https://www.wikidata.org/wiki/Q183755","display_name":"Amplitude modulation","level":4,"score":0.28049999475479126},{"id":"https://openalex.org/C118993495","wikidata":"https://www.wikidata.org/wiki/Q5042828","display_name":"Electrical efficiency","level":3,"score":0.26840001344680786},{"id":"https://openalex.org/C146002875","wikidata":"https://www.wikidata.org/wiki/Q1074289","display_name":"Frequency multiplier","level":3,"score":0.25459998846054077},{"id":"https://openalex.org/C180205008","wikidata":"https://www.wikidata.org/wiki/Q159190","display_name":"Amplitude","level":2,"score":0.25290000438690186}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tcsii.2026.3663733","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tcsii.2026.3663733","pdf_url":null,"source":{"id":"https://openalex.org/S93916849","display_name":"IEEE Transactions on Circuits & Systems II Express Briefs","issn_l":"1549-7747","issn":["1549-7747","1558-3791"],"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 Circuits and Systems II: Express Briefs","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/7","score":0.8630791306495667,"display_name":"Affordable and clean energy"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":[],"abstract_inverted_index":{"In":[0],"this":[1,47],"brief,":[2],"a":[3,26,110,121,145,153],"novel":[4],"design":[5,23],"methodology":[6],"for":[7,81],"Doherty":[8],"power":[9,138],"amplifier":[10,39],"(DPA)":[11],"MMIC":[12,115,179],"is":[13,66,116],"proposed":[14,67,166],"to":[15,84],"improve":[16],"the":[17,20,51,57,70,76,86,90,95,100,104,108,131,135,160,169,175],"efficiency":[18,55,102,113,148,173],"of":[19,25,56,89,103,140,150,157],"DPAs.":[21],"The":[22,126,165],"equations":[24],"compact":[27],"harmonic-controlled":[28],"bias":[29],"network":[30,64],"(CHCBN)":[31],"are":[32],"derived,":[33],"which":[34,68],"can":[35],"achieve":[36,85],"inverse":[37],"class-F":[38],"load":[40],"conditions":[41],"with":[42,144],"adjustable":[43],"fundamental":[44],"frequency":[45,163,184],"impedance,":[46],"approach":[48],"effectively":[49],"improves":[50],"saturated":[52,96,101,136,146],"and":[53,78,118,152],"back-off":[54,155,172],"DPA.":[58,105],"An":[59],"active":[60],"second":[61,71],"harmonic":[62,72],"injection":[63,83],"(HIN)":[65],"utilizes":[69],"components":[73],"generated":[74],"by":[75],"carrier":[77],"peaking":[79],"devices":[80],"mutual":[82],"amplitude":[87],"modulation":[88],"DPA":[91,114,133,167],"drain":[92,147],"waveform":[93],"in":[94,120,182],"state,":[97],"further":[98],"improving":[99],"To":[106],"validate":[107],"methodology,":[109],"C-band":[111],"high":[112],"designed":[117],"fabricated":[119,132],"0.25":[122],"\u03bcm":[123],"GaN-HEMT":[124],"process.":[125],"measurement":[127],"results":[128],"show":[129],"that":[130],"exhibits":[134],"output":[137],"(Psat)":[139],"39.6":[141],"dBm\u201340.6":[142],"dBm,":[143],"(DE)":[149],"53.9%\u201361.5%,":[151],"6-dB":[154,171],"DE":[156],"51.4%\u201356.0%":[158],"over":[159],"4.8-5.4":[161],"GHz":[162],"band.":[164,185],"demonstrates":[168],"highest":[170],"among":[174],"published":[176],"broadband":[177],"GaN":[178],"DPAs":[180],"operating":[181],"similar":[183]},"counts_by_year":[],"updated_date":"2026-03-28T06:11:35.319607","created_date":"2026-02-12T00:00:00"}