{"id":"https://openalex.org/W2994875282","doi":"https://doi.org/10.1109/tmtt.2019.2953904","title":"Design of Broadband Doubly Asymmetrical Branch-Line Directional Couplers","display_name":"Design of Broadband Doubly Asymmetrical Branch-Line Directional Couplers","publication_year":2019,"publication_date":"2019-12-17","ids":{"openalex":"https://openalex.org/W2994875282","doi":"https://doi.org/10.1109/tmtt.2019.2953904","mag":"2994875282"},"language":"en","primary_location":{"id":"doi:10.1109/tmtt.2019.2953904","doi":"https://doi.org/10.1109/tmtt.2019.2953904","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tmtt.2019.2953904","pdf_url":null,"source":{"id":"https://openalex.org/S198879913","display_name":"IEEE Transactions on Microwave Theory and Techniques","issn_l":"0018-9480","issn":["0018-9480","1557-9670"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-b","jufo-2","ki-jl-1","norway-1","poland-140","russia-white-list-1"],"host_organization":"https://openalex.org/P4310320754","host_organization_name":"IEEE Microwave Theory and Techniques Society","host_organization_lineage":["https://openalex.org/P4310320754"],"host_organization_lineage_names":["IEEE Microwave Theory and Techniques Society"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Microwave Theory and Techniques","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://oa.upm.es/77523/1/DesignofBroadbandDoubly.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5066160760","display_name":"Ana Buesa-Zubiria","orcid":"https://orcid.org/0000-0002-6275-6861","observed_orcids":["https://orcid.org/0000-0002-6275-6861"]},"institutions":[{"id":"https://openalex.org/I4405253306","display_name":"Information Processing and Telecommunications Center","ror":"https://ror.org/00hcf7151","country_code":"ES","type":"facility","lineage":["https://openalex.org/I4405253306","https://openalex.org/I88060688"]},{"id":"https://openalex.org/I88060688","display_name":"Universidad Polit\u00e9cnica de Madrid","ror":"https://ror.org/03n6nwv02","country_code":"ES","type":"education","lineage":["https://openalex.org/I88060688"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Ana Buesa-Zubiria","raw_affiliation_strings":["Information Processing and Telecommunications Center, Escuela T\u00e9cnica Superior de Ingenieros de Telecomunicaci\u00f3n,, Universidad Polit\u00e9cnica de Madrid, Madrid, Spain"],"raw_orcid":"https://orcid.org/0000-0002-6275-6861","affiliations":[{"raw_affiliation_string":"Information Processing and Telecommunications Center, Escuela T\u00e9cnica Superior de Ingenieros de Telecomunicaci\u00f3n,, Universidad Polit\u00e9cnica de Madrid, Madrid, Spain","institution_ids":["https://openalex.org/I4405253306","https://openalex.org/I88060688"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5047281835","display_name":"Jaime Esteban","orcid":"https://orcid.org/0000-0003-1009-1623","observed_orcids":["https://orcid.org/0000-0003-1009-1623"]},"institutions":[{"id":"https://openalex.org/I4405253306","display_name":"Information Processing and Telecommunications Center","ror":"https://ror.org/00hcf7151","country_code":"ES","type":"facility","lineage":["https://openalex.org/I4405253306","https://openalex.org/I88060688"]},{"id":"https://openalex.org/I88060688","display_name":"Universidad Polit\u00e9cnica de Madrid","ror":"https://ror.org/03n6nwv02","country_code":"ES","type":"education","lineage":["https://openalex.org/I88060688"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Jaime Esteban","raw_affiliation_strings":["Information Processing and Telecommunications Center, Escuela T\u00e9cnica Superior de Ingenieros de Telecomunicaci\u00f3n,, Universidad Polit\u00e9cnica de Madrid, Madrid, Spain"],"raw_orcid":"https://orcid.org/0000-0003-1009-1623","affiliations":[{"raw_affiliation_string":"Information Processing and Telecommunications Center, Escuela T\u00e9cnica Superior de Ingenieros de Telecomunicaci\u00f3n,, Universidad Polit\u00e9cnica de Madrid, Madrid, Spain","institution_ids":["https://openalex.org/I4405253306","https://openalex.org/I88060688"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":1750,"currency":"USD","value_usd":1750},"apc_paid":null,"fwci":0.4517,"has_fulltext":true,"cited_by_count":10,"citation_normalized_percentile":{"value":0.57412163,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":98},"biblio":{"volume":"68","issue":"4","first_page":"1439","last_page":"1451"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10262","display_name":"Microwave Engineering and Waveguides","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/T10262","display_name":"Microwave Engineering and Waveguides","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/T10069","display_name":"Antenna Design and Analysis","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"}},{"id":"https://openalex.org/T10187","display_name":"Radio Frequency Integrated 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/branch-line-coupler","display_name":"branch-line coupler","score":0.9129999876022339},{"id":"https://openalex.org/keywords/directional-coupler","display_name":"directional coupler","score":0.8769999742507935},{"id":"https://openalex.org/keywords/power-divider","display_name":"power divider","score":0.7599999904632568},{"id":"https://openalex.org/keywords/three-way-power-divider","display_name":"three-way power divider","score":0.7120000123977661},{"id":"https://openalex.org/keywords/impedance-transformation","display_name":"impedance transformation","score":0.7239999771118164}],"concepts":[{"id":"https://openalex.org/C202988678","wikidata":"https://www.wikidata.org/wiki/Q1417986","display_name":"Power dividers and directional couplers","level":2,"score":0.6774508953094482},{"id":"https://openalex.org/C17829176","wikidata":"https://www.wikidata.org/wiki/Q179043","display_name":"Electrical impedance","level":2,"score":0.6731712818145752},{"id":"https://openalex.org/C509933004","wikidata":"https://www.wikidata.org/wiki/Q194163","display_name":"Broadband","level":2,"score":0.6453805565834045},{"id":"https://openalex.org/C15627037","wikidata":"https://www.wikidata.org/wiki/Q541961","display_name":"Classification of discontinuities","level":2,"score":0.605829119682312},{"id":"https://openalex.org/C62869609","wikidata":"https://www.wikidata.org/wiki/Q28137","display_name":"Quadrature (astronomy)","level":2,"score":0.46025264263153076},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.4535147547721863},{"id":"https://openalex.org/C612350","wikidata":"https://www.wikidata.org/wiki/Q1761108","display_name":"Impedance matching","level":3,"score":0.42812901735305786},{"id":"https://openalex.org/C33441834","wikidata":"https://www.wikidata.org/wiki/Q693004","display_name":"Transmission line","level":2,"score":0.4242326021194458},{"id":"https://openalex.org/C204241405","wikidata":"https://www.wikidata.org/wiki/Q461499","display_name":"Transformation (genetics)","level":3,"score":0.4130440354347229},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.3861967921257019},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.36248642206192017},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.3493042588233948},{"id":"https://openalex.org/C184720557","wikidata":"https://www.wikidata.org/wiki/Q7825049","display_name":"Topology (electrical circuits)","level":2,"score":0.3371880054473877},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.2867288887500763},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.25705432891845703},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.13835233449935913},{"id":"https://openalex.org/C104317684","wikidata":"https://www.wikidata.org/wiki/Q7187","display_name":"Gene","level":2,"score":0.0},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.0},{"id":"https://openalex.org/C55493867","wikidata":"https://www.wikidata.org/wiki/Q7094","display_name":"Biochemistry","level":1,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.1109/tmtt.2019.2953904","doi":"https://doi.org/10.1109/tmtt.2019.2953904","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tmtt.2019.2953904","pdf_url":null,"source":{"id":"https://openalex.org/S198879913","display_name":"IEEE Transactions on Microwave Theory and Techniques","issn_l":"0018-9480","issn":["0018-9480","1557-9670"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-scientific","cwts-core","dongbi-b","jufo-2","ki-jl-1","norway-1","poland-140","russia-white-list-1"],"host_organization":"https://openalex.org/P4310320754","host_organization_name":"IEEE Microwave Theory and Techniques Society","host_organization_lineage":["https://openalex.org/P4310320754"],"host_organization_lineage_names":["IEEE Microwave Theory and Techniques Society"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Microwave Theory and Techniques","raw_type":"journal-article"},{"id":"pmh:oai:hispana.mcu.es:61144420","doi":null,"is_oa":false,"landing_page_url":"https://oa.upm.es/77523/","pdf_url":null,"source":{"id":"https://openalex.org/S4377196108","display_name":"Hispana","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":"repository"},"license":null,"license_id":null,"version":"acceptedVersion","is_accepted":true,"is_published":false,"raw_source_name":"IEEE Transactions on Microwave Theory and Techniques, ISSN 0018-9480, 2020-04, Vol. 68, No. 4","raw_type":"info:eu-repo/semantics/article"},{"id":"pmh:oai:oa.upm.es:77523","doi":null,"is_oa":true,"landing_page_url":"https://oa.upm.es/77523/","pdf_url":"https://oa.upm.es/77523/1/DesignofBroadbandDoubly.pdf","source":{"id":"https://openalex.org/S4377196323","display_name":"UPM Digital Archive (Technical University of Madrid)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I88060688","host_organization_name":"Universidad Polit\u00e9cnica de Madrid","host_organization_lineage":["https://openalex.org/I88060688"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"IEEE Transactions on Microwave Theory and Techniques, ISSN 0018-9480, 2020-04, Vol. 68, No. 4","raw_type":"info:eu-repo/semantics/article"}],"best_oa_location":{"id":"pmh:oai:oa.upm.es:77523","doi":null,"is_oa":true,"landing_page_url":"https://oa.upm.es/77523/","pdf_url":"https://oa.upm.es/77523/1/DesignofBroadbandDoubly.pdf","source":{"id":"https://openalex.org/S4377196323","display_name":"UPM Digital Archive (Technical University of Madrid)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I88060688","host_organization_name":"Universidad Polit\u00e9cnica de Madrid","host_organization_lineage":["https://openalex.org/I88060688"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"IEEE Transactions on Microwave Theory and Techniques, ISSN 0018-9480, 2020-04, Vol. 68, No. 4","raw_type":"info:eu-repo/semantics/article"},"sustainable_development_goals":[],"study_designs":[],"awards":[{"id":"https://openalex.org/G4054826404","display_name":null,"funder_award_id":"TEC2016-76070-C3-2-R","funder_id":"https://openalex.org/F4320315062","funder_display_name":"Ministerio de Ciencia, Innovaci\u00f3n y Universidades"}],"funders":[{"id":"https://openalex.org/F4320315062","display_name":"Ministerio de Ciencia, Innovaci\u00f3n y Universidades","ror":null}],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2994875282.pdf","grobid_xml":"https://content.openalex.org/works/W2994875282.grobid-xml"},"referenced_works_count":32,"referenced_works":["https://openalex.org/W1937641744","https://openalex.org/W1969607414","https://openalex.org/W1970511128","https://openalex.org/W1978162996","https://openalex.org/W1982858301","https://openalex.org/W1992132601","https://openalex.org/W1993853909","https://openalex.org/W1996782033","https://openalex.org/W2011549759","https://openalex.org/W2019349908","https://openalex.org/W2033605741","https://openalex.org/W2035443501","https://openalex.org/W2044175881","https://openalex.org/W2051167695","https://openalex.org/W2119794999","https://openalex.org/W2120398224","https://openalex.org/W2121369978","https://openalex.org/W2133787528","https://openalex.org/W2147240558","https://openalex.org/W2147770891","https://openalex.org/W2148368945","https://openalex.org/W2153012757","https://openalex.org/W2153550537","https://openalex.org/W2160603245","https://openalex.org/W2161714163","https://openalex.org/W2163648770","https://openalex.org/W2184802061","https://openalex.org/W2617816542","https://openalex.org/W2756387806","https://openalex.org/W2902664068","https://openalex.org/W2910322402","https://openalex.org/W2914953944"],"related_works":["https://openalex.org/W2084437112","https://openalex.org/W4392981926","https://openalex.org/W2057756681","https://openalex.org/W4405022204","https://openalex.org/W2968722978","https://openalex.org/W2084896162","https://openalex.org/W2069892948","https://openalex.org/W2130477886","https://openalex.org/W2153550537","https://openalex.org/W4388878408"],"abstract_inverted_index":{"An":[0,18],"analytic":[1],"broadband":[2],"design":[3,22,56],"method":[4,23],"for":[5,58],"four-port":[6],"N-branch":[7],"branch-line":[8],"couplers":[9,47],"with":[10],"outputs":[11],"terminated":[12],"by":[13,83],"arbitrary":[14],"impedances":[15],"is":[16,97],"given.":[17],"alternative,":[19],"more":[20],"practical":[21],"has":[24],"also":[25,98],"been":[26],"included,":[27],"which":[28],"avoids":[29],"impedance":[30,68],"discontinuities":[31],"in":[32,41,53],"the":[33,37,42,75,86,92],"branches":[34],"and":[35,88],"retrieves":[36],"outputs-in-quadrature":[38],"property":[39],"lost":[40],"asymmetrization.":[43],"The":[44],"doubly":[45],"asymmetrical":[46,81],"so":[48],"obtained":[49],"are":[50],"then":[51],"used":[52],"a":[54,78],"proposed":[55],"methodology":[57],"three-way":[59],"power":[60],"dividers":[61],"that":[62],"can":[63],"include,":[64],"if":[65],"desired,":[66],"an":[67],"level":[69],"transformation.":[70],"This":[71],"article":[72],"relies":[73],"on":[74],"analysis":[76,96],"of":[77,80,85,94],"class":[79],"structures":[82],"means":[84],"odd":[87],"even":[89],"excitations.":[90],"Therefore,":[91],"formalization":[93],"this":[95],"detailed.":[99]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":1},{"year":2023,"cited_by_count":2},{"year":2022,"cited_by_count":5}],"updated_date":"2026-11-07T11:25:07.637180","created_date":"2019-12-26T00:00:00"}
