{"id":"https://openalex.org/W2044859596","doi":"https://doi.org/10.1049/el:20020838","title":"Low voltage VHF biquad section","display_name":"Low voltage VHF biquad section","publication_year":2002,"publication_date":"2002-09-26","ids":{"openalex":"https://openalex.org/W2044859596","doi":"https://doi.org/10.1049/el:20020838","mag":"2044859596"},"language":"en","primary_location":{"id":"doi:10.1049/el:20020838","doi":"https://doi.org/10.1049/el:20020838","is_oa":false,"landing_page_url":"https://doi.org/10.1049/el:20020838","pdf_url":null,"source":{"id":"https://openalex.org/S149016011","display_name":"Electronics Letters","issn_l":"0013-5194","issn":["0013-5194","1350-911X"],"is_oa":false,"is_in_doaj":true,"is_core":true,"listed_in":["cwts-core","doaj","dongbi-d","jufo-1","norway-1","oarl","poland-70","russia-white-list-2","vabb-shw"],"host_organization":"https://openalex.org/P4310311714","host_organization_name":"Institution of Engineering and Technology","host_organization_lineage":["https://openalex.org/P4310311714"],"host_organization_lineage_names":["Institution of Engineering and Technology"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Electronics Letters","raw_type":"journal-article"},"volume":null,"type":"article","indexed_in":["crossref","doaj"],"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/A5047274950","display_name":"C. Aldea","orcid":"https://orcid.org/0000-0003-2874-6368","observed_orcids":["https://orcid.org/0000-0003-2874-6368"]},"institutions":[{"id":"https://openalex.org/I255234318","display_name":"Universidad de Zaragoza","ror":"https://ror.org/012a91z28","country_code":"ES","type":"education","lineage":["https://openalex.org/I255234318"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"C. Aldea","raw_affiliation_strings":["Grupo de Disen\u0303o Electro\u0301nico, Facultad de Ciencias, Universidad de Zaragoza, Zaragoza, E-50.009, Spain"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Grupo de Disen\u0303o Electro\u0301nico, Facultad de Ciencias, Universidad de Zaragoza, Zaragoza, E-50.009, Spain","institution_ids":["https://openalex.org/I255234318"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5075718351","display_name":"Santiago Celma","orcid":"https://orcid.org/0000-0003-0182-7723","observed_orcids":["https://orcid.org/0000-0003-0182-7723"]},"institutions":[{"id":"https://openalex.org/I255234318","display_name":"Universidad de Zaragoza","ror":"https://ror.org/012a91z28","country_code":"ES","type":"education","lineage":["https://openalex.org/I255234318"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"S. Celma","raw_affiliation_strings":["Grupo de Disen\u0303o Electro\u0301nico, Facultad de Ciencias, Universidad de Zaragoza, Zaragoza, E-50.009, Spain"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Grupo de Disen\u0303o Electro\u0301nico, Facultad de Ciencias, Universidad de Zaragoza, Zaragoza, E-50.009, Spain","institution_ids":["https://openalex.org/I255234318"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101842639","display_name":"Pedro A. Martinez","orcid":"https://orcid.org/0000-0002-9863-7370","observed_orcids":["https://orcid.org/0000-0002-9863-7370"]},"institutions":[{"id":"https://openalex.org/I255234318","display_name":"Universidad de Zaragoza","ror":"https://ror.org/012a91z28","country_code":"ES","type":"education","lineage":["https://openalex.org/I255234318"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"P.A. Martinez","raw_affiliation_strings":["Grupo de Disen\u0303o Electro\u0301nico, Facultad de Ciencias, Universidad de Zaragoza, Zaragoza, E-50.009, Spain"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Grupo de Disen\u0303o Electro\u0301nico, Facultad de Ciencias, Universidad de Zaragoza, Zaragoza, E-50.009, Spain","institution_ids":["https://openalex.org/I255234318"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5062680851","display_name":"Justo Sabadell","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I255234318","display_name":"Universidad de Zaragoza","ror":"https://ror.org/012a91z28","country_code":"ES","type":"education","lineage":["https://openalex.org/I255234318"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"J. Sabadell","raw_affiliation_strings":["Grupo de Disen\u0303o Electro\u0301nico, Facultad de Ciencias, Universidad de Zaragoza, Zaragoza, E-50.009, Spain"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Grupo de Disen\u0303o Electro\u0301nico, Facultad de Ciencias, Universidad de Zaragoza, Zaragoza, E-50.009, Spain","institution_ids":["https://openalex.org/I255234318"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I255234318"],"apc_list":{"value":2590,"currency":"USD","value_usd":2590},"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.2018195,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"38","issue":"20","first_page":"1177","last_page":"1178"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10323","display_name":"Analog and Mixed-Signal Circuit Design","score":0.9185000061988831,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical 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/T10323","display_name":"Analog and Mixed-Signal Circuit Design","score":0.9185000061988831,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical 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":0.07450000196695328,"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":0.005799999926239252,"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/biquad-filter","display_name":"biquad filter","score":0.8399999737739563},{"id":"https://openalex.org/keywords/low-voltage-circuits","display_name":"low-voltage circuits","score":0.8650000095367432},{"id":"https://openalex.org/keywords/vhf-band","display_name":"VHF band","score":0.8690000176429749},{"id":"https://openalex.org/keywords/high-quality-factor","display_name":"high quality factor","score":0.7850000262260437},{"id":"https://openalex.org/keywords/rf-front-end-circuits","display_name":"RF front-end circuits","score":0.7699999809265137}],"concepts":[{"id":"https://openalex.org/C14455310","wikidata":"https://www.wikidata.org/wiki/Q5276043","display_name":"Digital biquad filter","level":4,"score":0.9886674880981445},{"id":"https://openalex.org/C147788027","wikidata":"https://www.wikidata.org/wiki/Q2718101","display_name":"Band-pass filter","level":2,"score":0.765937328338623},{"id":"https://openalex.org/C11773624","wikidata":"https://www.wikidata.org/wiki/Q2142232","display_name":"Intermodulation","level":4,"score":0.46066489815711975},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.44239112734794617},{"id":"https://openalex.org/C165801399","wikidata":"https://www.wikidata.org/wiki/Q25428","display_name":"Voltage","level":2,"score":0.4011981189250946},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.37812289595603943},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.34956201910972595},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.3298317492008209},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.3147256374359131},{"id":"https://openalex.org/C194257627","wikidata":"https://www.wikidata.org/wiki/Q211554","display_name":"Amplifier","level":3,"score":0.28925737738609314},{"id":"https://openalex.org/C85899133","wikidata":"https://www.wikidata.org/wiki/Q557211","display_name":"Active filter","level":3,"score":0.25178927183151245},{"id":"https://openalex.org/C46362747","wikidata":"https://www.wikidata.org/wiki/Q173431","display_name":"CMOS","level":2,"score":0.08907407522201538}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1049/el:20020838","doi":"https://doi.org/10.1049/el:20020838","is_oa":false,"landing_page_url":"https://doi.org/10.1049/el:20020838","pdf_url":null,"source":{"id":"https://openalex.org/S149016011","display_name":"Electronics Letters","issn_l":"0013-5194","issn":["0013-5194","1350-911X"],"is_oa":false,"is_in_doaj":true,"is_core":true,"listed_in":["cwts-core","doaj","dongbi-d","jufo-1","norway-1","oarl","poland-70","russia-white-list-2","vabb-shw"],"host_organization":"https://openalex.org/P4310311714","host_organization_name":"Institution of Engineering and Technology","host_organization_lineage":["https://openalex.org/P4310311714"],"host_organization_lineage_names":["Institution of Engineering and Technology"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Electronics Letters","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":3,"referenced_works":["https://openalex.org/W1821356826","https://openalex.org/W2121226030","https://openalex.org/W2135433397"],"related_works":["https://openalex.org/W3149709731","https://openalex.org/W2097411303","https://openalex.org/W2159460502","https://openalex.org/W2035273157","https://openalex.org/W3082025894","https://openalex.org/W7113899279","https://openalex.org/W2113782111","https://openalex.org/W7208218232","https://openalex.org/W2133009849","https://openalex.org/W2057466337"],"abstract_inverted_index":{"A":[0,20],"new":[1],"biquad":[2,38],"section":[3],"based":[4],"on":[5],"pseudo-differential":[6],"continuous-time":[7],"transconductors":[8],"for":[9],"applications":[10,42],"in":[11,39],"low-voltage":[12],"systems":[13],"over":[14],"the":[15,33,36],"VHF":[16],"band":[17],"is":[18],"presented.":[19],"prototype":[21],"fourth-order":[22],"200":[23],"MHz":[24],"bandpass":[25,46],"filter":[26],"with":[27],"very":[28],"high":[29],"Q":[30],"factor":[31],"confirms":[32],"feasibility":[34],"of":[35,48],"proposed":[37],"very-high":[40],"frequency":[41],"such":[43],"as":[44],"IF":[45],"sections":[47],"RF":[49],"front-end":[50],"circuits.":[51]},"counts_by_year":[],"updated_date":"2026-09-22T06:50:58.402377","created_date":"2016-06-24T00:00:00"}