{"id":"https://openalex.org/W1986357816","doi":"https://doi.org/10.1109/rws.2012.6175361","title":"Design of frequency agile filters in RF frontend circuits","display_name":"Design of frequency agile filters in RF frontend circuits","publication_year":2012,"publication_date":"2012-01-01","ids":{"openalex":"https://openalex.org/W1986357816","doi":"https://doi.org/10.1109/rws.2012.6175361","mag":"1986357816"},"language":"en","primary_location":{"id":"doi:10.1109/rws.2012.6175361","is_oa":false,"landing_page_url":"https://doi.org/10.1109/rws.2012.6175361","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2012 IEEE Radio and Wireless Symposium","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/A5062712873","display_name":"Stefan Kaehlert","orcid":null},"institutions":[{"id":"https://openalex.org/I887968799","display_name":"RWTH Aachen University","ror":"https://ror.org/04xfq0f34","country_code":"DE","type":"education","lineage":["https://openalex.org/I887968799"]}],"countries":["DE"],"is_corresponding":true,"raw_author_name":"Stefan Kaehlert","raw_affiliation_strings":["Chair of Integrated Analog Circuits and RF-Systems, RWTH Aachen University, Aachen, Germany","Integrated Analog Circuits and RF-Systems, RWTH-Aachen University, Sommerfeldstr. 24, 52074, Germany"],"affiliations":[{"raw_affiliation_string":"Chair of Integrated Analog Circuits and RF-Systems, RWTH Aachen University, Aachen, Germany","institution_ids":["https://openalex.org/I887968799"]},{"raw_affiliation_string":"Integrated Analog Circuits and RF-Systems, RWTH-Aachen University, Sommerfeldstr. 24, 52074, Germany","institution_ids":["https://openalex.org/I887968799"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5066805881","display_name":"Dirk Bormann","orcid":null},"institutions":[{"id":"https://openalex.org/I887968799","display_name":"RWTH Aachen University","ror":"https://ror.org/04xfq0f34","country_code":"DE","type":"education","lineage":["https://openalex.org/I887968799"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Dirk Bormann","raw_affiliation_strings":["Chair of Integrated Analog Circuits and RF-Systems, RWTH Aachen University, Aachen, Germany","Integrated Analog Circuits and RF-Systems, RWTH-Aachen University, Sommerfeldstr. 24, 52074, Germany"],"affiliations":[{"raw_affiliation_string":"Chair of Integrated Analog Circuits and RF-Systems, RWTH Aachen University, Aachen, Germany","institution_ids":["https://openalex.org/I887968799"]},{"raw_affiliation_string":"Integrated Analog Circuits and RF-Systems, RWTH-Aachen University, Sommerfeldstr. 24, 52074, Germany","institution_ids":["https://openalex.org/I887968799"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5013505251","display_name":"Tobias D. Werth","orcid":null},"institutions":[{"id":"https://openalex.org/I887968799","display_name":"RWTH Aachen University","ror":"https://ror.org/04xfq0f34","country_code":"DE","type":"education","lineage":["https://openalex.org/I887968799"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Tobias D. Werth","raw_affiliation_strings":["Chair of Integrated Analog Circuits and RF-Systems, RWTH Aachen University, Aachen, Germany","Integrated Analog Circuits and RF-Systems, RWTH-Aachen University, Sommerfeldstr. 24, 52074, Germany"],"affiliations":[{"raw_affiliation_string":"Chair of Integrated Analog Circuits and RF-Systems, RWTH Aachen University, Aachen, Germany","institution_ids":["https://openalex.org/I887968799"]},{"raw_affiliation_string":"Integrated Analog Circuits and RF-Systems, RWTH-Aachen University, Sommerfeldstr. 24, 52074, Germany","institution_ids":["https://openalex.org/I887968799"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5055959224","display_name":"Muh\u2010Dey Wei","orcid":"https://orcid.org/0000-0002-7360-9904"},"institutions":[{"id":"https://openalex.org/I887968799","display_name":"RWTH Aachen University","ror":"https://ror.org/04xfq0f34","country_code":"DE","type":"education","lineage":["https://openalex.org/I887968799"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Muh-Dey Wei","raw_affiliation_strings":["Chair of Integrated Analog Circuits and RF-Systems, RWTH Aachen University, Aachen, Germany","Integrated Analog Circuits and RF-Systems, RWTH-Aachen University, Sommerfeldstr. 24, 52074, Germany"],"affiliations":[{"raw_affiliation_string":"Chair of Integrated Analog Circuits and RF-Systems, RWTH Aachen University, Aachen, Germany","institution_ids":["https://openalex.org/I887968799"]},{"raw_affiliation_string":"Integrated Analog Circuits and RF-Systems, RWTH-Aachen University, Sommerfeldstr. 24, 52074, Germany","institution_ids":["https://openalex.org/I887968799"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5110278947","display_name":"Lei Liao","orcid":null},"institutions":[{"id":"https://openalex.org/I887968799","display_name":"RWTH Aachen University","ror":"https://ror.org/04xfq0f34","country_code":"DE","type":"education","lineage":["https://openalex.org/I887968799"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Lei Liao","raw_affiliation_strings":["Chair of Integrated Analog Circuits and RF-Systems, RWTH Aachen University, Aachen, Germany","Integrated Analog Circuits and RF-Systems, RWTH-Aachen University, Sommerfeldstr. 24, 52074, Germany"],"affiliations":[{"raw_affiliation_string":"Chair of Integrated Analog Circuits and RF-Systems, RWTH Aachen University, Aachen, Germany","institution_ids":["https://openalex.org/I887968799"]},{"raw_affiliation_string":"Integrated Analog Circuits and RF-Systems, RWTH-Aachen University, Sommerfeldstr. 24, 52074, Germany","institution_ids":["https://openalex.org/I887968799"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5039003474","display_name":"Stefan Heinen","orcid":"https://orcid.org/0009-0001-7568-8116"},"institutions":[{"id":"https://openalex.org/I887968799","display_name":"RWTH Aachen University","ror":"https://ror.org/04xfq0f34","country_code":"DE","type":"education","lineage":["https://openalex.org/I887968799"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Stefan Heinen","raw_affiliation_strings":["Chair of Integrated Analog Circuits and RF-Systems, RWTH Aachen University, Aachen, Germany","Integrated Analog Circuits and RF-Systems, RWTH-Aachen University, Sommerfeldstr. 24, 52074, Germany"],"affiliations":[{"raw_affiliation_string":"Chair of Integrated Analog Circuits and RF-Systems, RWTH Aachen University, Aachen, Germany","institution_ids":["https://openalex.org/I887968799"]},{"raw_affiliation_string":"Integrated Analog Circuits and RF-Systems, RWTH-Aachen University, Sommerfeldstr. 24, 52074, Germany","institution_ids":["https://openalex.org/I887968799"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":6,"corresponding_author_ids":["https://openalex.org/A5062712873"],"corresponding_institution_ids":["https://openalex.org/I887968799"],"apc_list":null,"apc_paid":null,"fwci":0.7365,"has_fulltext":false,"cited_by_count":5,"citation_normalized_percentile":{"value":0.72872229,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":96},"biblio":{"volume":null,"issue":null,"first_page":"13","last_page":"16"},"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":0.9990000128746033,"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/T10262","display_name":"Microwave Engineering and Waveguides","score":0.9969000220298767,"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/band-pass-filter","display_name":"Band-pass filter","score":0.7007824182510376},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.634218156337738},{"id":"https://openalex.org/keywords/center-frequency","display_name":"Center frequency","score":0.6335869431495667},{"id":"https://openalex.org/keywords/frequency-offset","display_name":"Frequency offset","score":0.5743488073348999},{"id":"https://openalex.org/keywords/wideband","display_name":"Wideband","score":0.5682082772254944},{"id":"https://openalex.org/keywords/bandwidth","display_name":"Bandwidth (computing)","score":0.5672203898429871},{"id":"https://openalex.org/keywords/cmos","display_name":"CMOS","score":0.5546236038208008},{"id":"https://openalex.org/keywords/radio-frequency","display_name":"Radio frequency","score":0.5096650123596191},{"id":"https://openalex.org/keywords/low-pass-filter","display_name":"Low-pass filter","score":0.49468156695365906},{"id":"https://openalex.org/keywords/prototype-filter","display_name":"Prototype filter","score":0.4696974754333496},{"id":"https://openalex.org/keywords/electrical-engineering","display_name":"Electrical engineering","score":0.4623922109603882},{"id":"https://openalex.org/keywords/electronic-circuit","display_name":"Electronic circuit","score":0.4386247992515564},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.4359202980995178},{"id":"https://openalex.org/keywords/cognitive-radio","display_name":"Cognitive radio","score":0.4316410422325134},{"id":"https://openalex.org/keywords/frequency-agility","display_name":"Frequency agility","score":0.41589146852493286},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.31205421686172485},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.23914003372192383},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.2160593569278717},{"id":"https://openalex.org/keywords/radar","display_name":"Radar","score":0.07307809591293335}],"concepts":[{"id":"https://openalex.org/C147788027","wikidata":"https://www.wikidata.org/wiki/Q2718101","display_name":"Band-pass filter","level":2,"score":0.7007824182510376},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.634218156337738},{"id":"https://openalex.org/C7054721","wikidata":"https://www.wikidata.org/wiki/Q1940572","display_name":"Center frequency","level":3,"score":0.6335869431495667},{"id":"https://openalex.org/C49319798","wikidata":"https://www.wikidata.org/wiki/Q5502874","display_name":"Frequency offset","level":4,"score":0.5743488073348999},{"id":"https://openalex.org/C2780202535","wikidata":"https://www.wikidata.org/wiki/Q4524457","display_name":"Wideband","level":2,"score":0.5682082772254944},{"id":"https://openalex.org/C2776257435","wikidata":"https://www.wikidata.org/wiki/Q1576430","display_name":"Bandwidth (computing)","level":2,"score":0.5672203898429871},{"id":"https://openalex.org/C46362747","wikidata":"https://www.wikidata.org/wiki/Q173431","display_name":"CMOS","level":2,"score":0.5546236038208008},{"id":"https://openalex.org/C74064498","wikidata":"https://www.wikidata.org/wiki/Q3396184","display_name":"Radio frequency","level":2,"score":0.5096650123596191},{"id":"https://openalex.org/C44682112","wikidata":"https://www.wikidata.org/wiki/Q918242","display_name":"Low-pass filter","level":3,"score":0.49468156695365906},{"id":"https://openalex.org/C175742284","wikidata":"https://www.wikidata.org/wiki/Q1415537","display_name":"Prototype filter","level":4,"score":0.4696974754333496},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.4623922109603882},{"id":"https://openalex.org/C134146338","wikidata":"https://www.wikidata.org/wiki/Q1815901","display_name":"Electronic circuit","level":2,"score":0.4386247992515564},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.4359202980995178},{"id":"https://openalex.org/C149946192","wikidata":"https://www.wikidata.org/wiki/Q3235733","display_name":"Cognitive radio","level":3,"score":0.4316410422325134},{"id":"https://openalex.org/C178824520","wikidata":"https://www.wikidata.org/wiki/Q5502853","display_name":"Frequency agility","level":3,"score":0.41589146852493286},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.31205421686172485},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.23914003372192383},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.2160593569278717},{"id":"https://openalex.org/C554190296","wikidata":"https://www.wikidata.org/wiki/Q47528","display_name":"Radar","level":2,"score":0.07307809591293335},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.0},{"id":"https://openalex.org/C40409654","wikidata":"https://www.wikidata.org/wiki/Q375889","display_name":"Orthogonal frequency-division multiplexing","level":3,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/rws.2012.6175361","is_oa":false,"landing_page_url":"https://doi.org/10.1109/rws.2012.6175361","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2012 IEEE Radio and Wireless Symposium","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Affordable and clean energy","score":0.47999998927116394,"id":"https://metadata.un.org/sdg/7"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":8,"referenced_works":["https://openalex.org/W1484928346","https://openalex.org/W1996114343","https://openalex.org/W2099473164","https://openalex.org/W2118911937","https://openalex.org/W2123934607","https://openalex.org/W2128152428","https://openalex.org/W2159914047","https://openalex.org/W6683643932"],"related_works":["https://openalex.org/W2121297814","https://openalex.org/W3111205224","https://openalex.org/W1970020976","https://openalex.org/W2147917488","https://openalex.org/W2156114995","https://openalex.org/W2169597203","https://openalex.org/W2514681820","https://openalex.org/W2968145336","https://openalex.org/W1571514360","https://openalex.org/W1688457932"],"abstract_inverted_index":{"Frequency":[0],"agile":[1,52],"filter":[2,28,53,92],"are":[3],"key":[4],"components":[5],"for":[6],"future":[7],"cognitive":[8,26],"radio":[9,27],"applications.":[10],"Bandpass":[11],"filters":[12],"based":[13],"on":[14,35],"the":[15,31,36,39,45,91,115],"principle":[16],"of":[17,69,88,96,106],"lowpass":[18],"upconversion":[19],"allow":[20],"simple":[21],"and":[22],"CMOS-friendly":[23],"solutions":[24],"to":[25,61],"problems.":[29],"Because":[30],"center":[32],"frequency":[33,51,102],"depends":[34],"LO-frequency":[37],"only,":[38],"band":[40],"selection":[41],"is":[42],"adjusted":[43],"with":[44,66],"receive":[46],"mixers":[47],"LO":[48],"simultaneously.":[49],"A":[50],"has":[54],"been":[55],"incorporated":[56],"into":[57],"a":[58,67,80,85,94,107],"600":[59],"MHz":[60,63,101],"800":[62],"wideband":[64],"LNA":[65],"gain":[68],"18":[70],"dB":[71,98],"at":[72,99],"700":[73],"MHz.":[74],"It":[75],"consumes":[76],"8.7":[77],"mA":[78],"from":[79],"1.4":[81],"V":[82],"supply.":[83],"With":[84],"3":[86],"dB-bandwidth":[87],"14":[89],"MHz,":[90],"achieves":[93],"selectivity":[95],"9.5":[97],"40":[100],"offset.":[103],"Measurement":[104],"results":[105],"prototype":[108],"chip":[109],"in":[110],"90":[111],"nm":[112],"CMOS":[113],"prove":[114],"presented":[116],"theory.":[117]},"counts_by_year":[{"year":2019,"cited_by_count":1},{"year":2016,"cited_by_count":1},{"year":2014,"cited_by_count":2},{"year":2013,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}