{"id":"https://openalex.org/W3006297429","doi":"https://doi.org/10.1109/icce-tw46550.2019.8991817","title":"27 MHz High Efficiency Variable Gain Amplifier for Shortwave Diathermy","display_name":"27 MHz High Efficiency Variable Gain Amplifier for Shortwave Diathermy","publication_year":2019,"publication_date":"2019-05-01","ids":{"openalex":"https://openalex.org/W3006297429","doi":"https://doi.org/10.1109/icce-tw46550.2019.8991817","mag":"3006297429"},"language":"en","primary_location":{"id":"doi:10.1109/icce-tw46550.2019.8991817","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icce-tw46550.2019.8991817","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2019 IEEE International Conference on Consumer Electronics - Taiwan (ICCE-TW)","raw_type":"proceedings-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/A5063003365","display_name":"Chiu-Chin Lin","orcid":null},"institutions":[],"countries":[],"is_corresponding":true,"raw_author_name":"Chiu-Chin Lin","raw_affiliation_strings":["Ph.D. Prog. in Eng. Science and Tech., College Eng., National Kaohsiung Univ. Science Tech.,Taiwan","Ph.D. Prog. in Eng. Science and Tech., College Eng., National Kaohsiung Univ. Science Tech., Taiwan"],"affiliations":[{"raw_affiliation_string":"Ph.D. Prog. in Eng. Science and Tech., College Eng., National Kaohsiung Univ. Science Tech.,Taiwan","institution_ids":[]},{"raw_affiliation_string":"Ph.D. Prog. in Eng. Science and Tech., College Eng., National Kaohsiung Univ. Science Tech., Taiwan","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5049930551","display_name":"Kang-Chun Peng","orcid":"https://orcid.org/0000-0002-8860-8875"},"institutions":[{"id":"https://openalex.org/I192168892","display_name":"National University of Kaohsiung","ror":"https://ror.org/013zjb662","country_code":"TW","type":"education","lineage":["https://openalex.org/I192168892"]},{"id":"https://openalex.org/I89178830","display_name":"National Kaohsiung University of Applied Sciences","ror":"https://ror.org/04wydzr61","country_code":"TW","type":"education","lineage":["https://openalex.org/I89178830"]}],"countries":["TW"],"is_corresponding":false,"raw_author_name":"Kang-Chun Peng","raw_affiliation_strings":["National Kaohsiung Univ. Science Tech.,Dep. Computer and Comm. Eng.,Taiwan","Dep. Computer and Comm. Eng., National Kaohsiung Univ. Science Tech., Taiwan"],"affiliations":[{"raw_affiliation_string":"National Kaohsiung Univ. Science Tech.,Dep. Computer and Comm. Eng.,Taiwan","institution_ids":["https://openalex.org/I89178830","https://openalex.org/I192168892"]},{"raw_affiliation_string":"Dep. Computer and Comm. Eng., National Kaohsiung Univ. Science Tech., Taiwan","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5063003365"],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.16685934,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"2"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11248","display_name":"Advanced Power Amplifier Design","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/T11248","display_name":"Advanced Power Amplifier Design","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/T11249","display_name":"Wireless Power Transfer Systems","score":0.9991000294685364,"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":0.9973999857902527,"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/variable-gain-amplifier","display_name":"Variable-gain amplifier","score":0.8091893792152405},{"id":"https://openalex.org/keywords/amplifier","display_name":"Amplifier","score":0.7017432451248169},{"id":"https://openalex.org/keywords/power-added-efficiency","display_name":"Power-added efficiency","score":0.6395518183708191},{"id":"https://openalex.org/keywords/fully-differential-amplifier","display_name":"Fully differential amplifier","score":0.5843881368637085},{"id":"https://openalex.org/keywords/rf-power-amplifier","display_name":"RF power amplifier","score":0.5576780438423157},{"id":"https://openalex.org/keywords/open-loop-gain","display_name":"Open-loop gain","score":0.48010969161987305},{"id":"https://openalex.org/keywords/direct-coupled-amplifier","display_name":"Direct-coupled amplifier","score":0.47727149724960327},{"id":"https://openalex.org/keywords/linear-amplifier","display_name":"Linear amplifier","score":0.432253897190094},{"id":"https://openalex.org/keywords/electrical-engineering","display_name":"Electrical engineering","score":0.4206472337245941},{"id":"https://openalex.org/keywords/harmonics","display_name":"Harmonics","score":0.41860640048980713},{"id":"https://openalex.org/keywords/shortwave","display_name":"Shortwave","score":0.41569846868515015},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.37881630659103394},{"id":"https://openalex.org/keywords/automatic-gain-control","display_name":"Automatic gain control","score":0.345670223236084},{"id":"https://openalex.org/keywords/operational-amplifier","display_name":"Operational amplifier","score":0.3416389226913452},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.2716672122478485},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.25456273555755615},{"id":"https://openalex.org/keywords/optics","display_name":"Optics","score":0.230232834815979},{"id":"https://openalex.org/keywords/voltage","display_name":"Voltage","score":0.06520268321037292}],"concepts":[{"id":"https://openalex.org/C91541141","wikidata":"https://www.wikidata.org/wiki/Q1894933","display_name":"Variable-gain amplifier","level":5,"score":0.8091893792152405},{"id":"https://openalex.org/C194257627","wikidata":"https://www.wikidata.org/wiki/Q211554","display_name":"Amplifier","level":3,"score":0.7017432451248169},{"id":"https://openalex.org/C129231560","wikidata":"https://www.wikidata.org/wiki/Q7236462","display_name":"Power-added efficiency","level":5,"score":0.6395518183708191},{"id":"https://openalex.org/C189184530","wikidata":"https://www.wikidata.org/wiki/Q5508342","display_name":"Fully differential amplifier","level":5,"score":0.5843881368637085},{"id":"https://openalex.org/C196054291","wikidata":"https://www.wikidata.org/wiki/Q7276624","display_name":"RF power amplifier","level":4,"score":0.5576780438423157},{"id":"https://openalex.org/C143931264","wikidata":"https://www.wikidata.org/wiki/Q5932986","display_name":"Open-loop gain","level":5,"score":0.48010969161987305},{"id":"https://openalex.org/C172218469","wikidata":"https://www.wikidata.org/wiki/Q4477697","display_name":"Direct-coupled amplifier","level":5,"score":0.47727149724960327},{"id":"https://openalex.org/C71041172","wikidata":"https://www.wikidata.org/wiki/Q6553412","display_name":"Linear amplifier","level":5,"score":0.432253897190094},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.4206472337245941},{"id":"https://openalex.org/C188414643","wikidata":"https://www.wikidata.org/wiki/Q3001183","display_name":"Harmonics","level":3,"score":0.41860640048980713},{"id":"https://openalex.org/C2776272892","wikidata":"https://www.wikidata.org/wiki/Q7502249","display_name":"Shortwave","level":3,"score":0.41569846868515015},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.37881630659103394},{"id":"https://openalex.org/C177502760","wikidata":"https://www.wikidata.org/wiki/Q782524","display_name":"Automatic gain control","level":4,"score":0.345670223236084},{"id":"https://openalex.org/C145366948","wikidata":"https://www.wikidata.org/wiki/Q178947","display_name":"Operational amplifier","level":4,"score":0.3416389226913452},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.2716672122478485},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.25456273555755615},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.230232834815979},{"id":"https://openalex.org/C165801399","wikidata":"https://www.wikidata.org/wiki/Q25428","display_name":"Voltage","level":2,"score":0.06520268321037292},{"id":"https://openalex.org/C46362747","wikidata":"https://www.wikidata.org/wiki/Q173431","display_name":"CMOS","level":2,"score":0.0},{"id":"https://openalex.org/C74902906","wikidata":"https://www.wikidata.org/wiki/Q1190858","display_name":"Radiative transfer","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/icce-tw46550.2019.8991817","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icce-tw46550.2019.8991817","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2019 IEEE International Conference on Consumer Electronics - Taiwan (ICCE-TW)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.8899999856948853,"id":"https://metadata.un.org/sdg/7","display_name":"Affordable and clean energy"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":2,"referenced_works":["https://openalex.org/W2244916454","https://openalex.org/W2765129924"],"related_works":["https://openalex.org/W2168271505","https://openalex.org/W2370909701","https://openalex.org/W2093237176","https://openalex.org/W2126419758","https://openalex.org/W1604310233","https://openalex.org/W2380000185","https://openalex.org/W2111120985","https://openalex.org/W4390187773","https://openalex.org/W2773902193","https://openalex.org/W2167184694"],"abstract_inverted_index":{"This":[0],"paper":[1],"proposed":[2],"a":[3,19,36,90],"27":[4],"MHz":[5],"high-efficiency":[6,85],"variable":[7,45,73,86],"gain":[8,46,74,87,96,113],"amplifier":[9,30,38,47,75,88],"(VGA)":[10],"that":[11],"could":[12],"be":[13,49,77],"applied":[14],"to":[15,21,48,76,101],"short-wave":[16],"diathermy,":[17],"as":[18],"way":[20],"improve":[22],"the":[23,32,44,65,112,116,122,131,134],"efficiency":[24,119],"for":[25,40,79],"long-term":[26],"operation":[27],"of":[28,98,108,121,133],"such":[29],"in":[31],"therapy.":[33],"We":[34,82],"used":[35],"class-B":[37],"architecture":[39],"design,":[41],"which":[42],"allowed":[43],"extremely":[50],"efficient,":[51],"both":[52],"at":[53,93,137],"high":[54],"and":[55,67],"low":[56],"power":[57,107,117],"output.":[58],"In":[59],"addition,":[60],"we":[61],"also":[62],"effectively":[63],"suppressed":[64],"second":[66,135],"third":[68],"harmonics,":[69],"further":[70],"permitting":[71],"this":[72,84],"practical":[78],"commercial":[80],"use.":[81],"adopted":[83],"with":[89,130],"hybrid":[91],"circuit":[92],"an":[94,105],"adjustable":[95],"range":[97],"5.8":[99],"dB":[100,103],"31":[102],"under":[104],"input":[106],"0":[109],"dBm.":[110],"Within":[111],"adjustment":[114],"range,":[115],"additive":[118],"(PAE)":[120],"VGA":[123],"was":[124],"almost":[125],"always":[126],"maintained":[127],"above":[128],"50%":[129],"suppression":[132],"harmonics":[136],"more":[138],"than":[139],"65":[140],"dB.":[141]},"counts_by_year":[],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
