{"id":"https://openalex.org/W2136744366","doi":"https://doi.org/10.1109/75.852427","title":"A compact 8-in, 8-out multiport amplifier with novel three-dimensional structure","display_name":"A compact 8-in, 8-out multiport amplifier with novel three-dimensional structure","publication_year":2000,"publication_date":"2000-06-01","ids":{"openalex":"https://openalex.org/W2136744366","doi":"https://doi.org/10.1109/75.852427","mag":"2136744366"},"language":"en","primary_location":{"id":"doi:10.1109/75.852427","doi":"https://doi.org/10.1109/75.852427","is_oa":false,"landing_page_url":"https://doi.org/10.1109/75.852427","pdf_url":null,"source":{"id":"https://openalex.org/S56969480","display_name":"IEEE Microwave and Guided Wave Letters","issn_l":"1051-8207","issn":["1051-8207","1558-2329"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","norway-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 Microwave and Guided Wave Letters","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"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/A5043174829","display_name":"Atsushi Fukuda","orcid":"https://orcid.org/0000-0002-6058-5149","observed_orcids":["https://orcid.org/0000-0002-6058-5149"]},"institutions":[{"id":"https://openalex.org/I2251713219","display_name":"NTT (Japan)","ror":"https://ror.org/00berct97","country_code":"JP","type":"company","lineage":["https://openalex.org/I2251713219"]},{"id":"https://openalex.org/I4405275456","display_name":"NTT DOCOMO, Inc. (Japan)","ror":"https://ror.org/03n2yfa15","country_code":"JP","type":"company","lineage":["https://openalex.org/I4405275456"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"A. Fukuda","raw_affiliation_strings":["Wireless Laboratories, NTT Mobile Communications Network, Inc., Kanagawa, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Wireless Laboratories, NTT Mobile Communications Network, Inc., Kanagawa, Japan","institution_ids":["https://openalex.org/I2251713219","https://openalex.org/I4405275456"]}]},{"author_position":"middle","author":{"id":null,"display_name":"T. Hirota","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I2251713219","display_name":"NTT (Japan)","ror":"https://ror.org/00berct97","country_code":"JP","type":"company","lineage":["https://openalex.org/I2251713219"]},{"id":"https://openalex.org/I4405275456","display_name":"NTT DOCOMO, Inc. (Japan)","ror":"https://ror.org/03n2yfa15","country_code":"JP","type":"company","lineage":["https://openalex.org/I4405275456"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"T. Hirota","raw_affiliation_strings":["Wireless Laboratories, NTT Mobile Communications Network, Inc., Kanagawa, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Wireless Laboratories, NTT Mobile Communications Network, Inc., Kanagawa, Japan","institution_ids":["https://openalex.org/I2251713219","https://openalex.org/I4405275456"]}]},{"author_position":"last","author":{"id":null,"display_name":"T. Nojima","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I2251713219","display_name":"NTT (Japan)","ror":"https://ror.org/00berct97","country_code":"JP","type":"company","lineage":["https://openalex.org/I2251713219"]},{"id":"https://openalex.org/I4405275456","display_name":"NTT DOCOMO, Inc. (Japan)","ror":"https://ror.org/03n2yfa15","country_code":"JP","type":"company","lineage":["https://openalex.org/I4405275456"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"T. Nojima","raw_affiliation_strings":["Wireless Laboratories, NTT Mobile Communications Network, Inc., Kanagawa, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Wireless Laboratories, NTT Mobile Communications Network, Inc., Kanagawa, Japan","institution_ids":["https://openalex.org/I2251713219","https://openalex.org/I4405275456"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":5,"citation_normalized_percentile":{"value":0.0,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":93},"biblio":{"volume":"10","issue":"6","first_page":"236","last_page":"238"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10262","display_name":"Microwave Engineering and Waveguides","score":0.8661999702453613,"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":0.8661999702453613,"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":0.08669999986886978,"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":0.02539999969303608,"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/directional-coupler","display_name":"directional coupler","score":0.8130000233650208},{"id":"https://openalex.org/keywords/compact-amplifier","display_name":"compact amplifier","score":0.7829999923706055}],"concepts":[{"id":"https://openalex.org/C194257627","wikidata":"https://www.wikidata.org/wiki/Q211554","display_name":"Amplifier","level":3,"score":0.8292019367218018},{"id":"https://openalex.org/C172218469","wikidata":"https://www.wikidata.org/wiki/Q4477697","display_name":"Direct-coupled amplifier","level":5,"score":0.5777696967124939},{"id":"https://openalex.org/C89123640","wikidata":"https://www.wikidata.org/wiki/Q1523756","display_name":"Instrumentation amplifier","level":5,"score":0.491070032119751},{"id":"https://openalex.org/C32802771","wikidata":"https://www.wikidata.org/wiki/Q2443617","display_name":"Port (circuit theory)","level":2,"score":0.46969103813171387},{"id":"https://openalex.org/C110628552","wikidata":"https://www.wikidata.org/wiki/Q5283135","display_name":"Distributed amplifier","level":5,"score":0.4601379930973053},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.4592139720916748},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.4036901593208313},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.3979484736919403},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.35919204354286194},{"id":"https://openalex.org/C145366948","wikidata":"https://www.wikidata.org/wiki/Q178947","display_name":"Operational amplifier","level":4,"score":0.3006752133369446},{"id":"https://openalex.org/C46362747","wikidata":"https://www.wikidata.org/wiki/Q173431","display_name":"CMOS","level":2,"score":0.11730426549911499}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/75.852427","doi":"https://doi.org/10.1109/75.852427","is_oa":false,"landing_page_url":"https://doi.org/10.1109/75.852427","pdf_url":null,"source":{"id":"https://openalex.org/S56969480","display_name":"IEEE Microwave and Guided Wave Letters","issn_l":"1051-8207","issn":["1051-8207","1558-2329"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","norway-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 Microwave and Guided Wave 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":7,"referenced_works":["https://openalex.org/W2024305117","https://openalex.org/W2052068012","https://openalex.org/W2089535908","https://openalex.org/W2105898250","https://openalex.org/W2151427524","https://openalex.org/W2170750979","https://openalex.org/W3041626521"],"related_works":["https://openalex.org/W2060797669","https://openalex.org/W3145591394","https://openalex.org/W7168623155","https://openalex.org/W2067014026","https://openalex.org/W3087731879","https://openalex.org/W2134006109","https://openalex.org/W4412972647","https://openalex.org/W2119249542","https://openalex.org/W2138278085","https://openalex.org/W4239657539"],"abstract_inverted_index":{"A":[0],"novel":[1],"three-dimensional":[2],"(3-D)":[3],"structure":[4,27],"is":[5,47],"proposed":[6,43],"for":[7],"an":[8,45],"8-in,":[9],"8-out":[10],"multiport":[11],"amplifier":[12,15,24],"(MPA).":[13],"The":[14],"consists":[16],"of":[17],"two":[18],"16-port":[19],"directional":[20],"couplers":[21],"and":[22,49],"eight":[23],"units.":[25],"This":[26],"can":[28],"realize":[29],"more":[30],"compact":[31],"amplifiers":[32],"that":[33],"do":[34],"not":[35],"require":[36],"any":[37],"cable":[38],"adjustment.":[39],"To":[40],"confirm":[41],"the":[42],"structure,":[44],"MPA":[46],"constructed":[48],"tested":[50],"at":[51],"2.0":[52],"GHz.":[53]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":1},{"year":2016,"cited_by_count":1},{"year":2015,"cited_by_count":1},{"year":2014,"cited_by_count":1}],"updated_date":"2026-10-16T09:59:22.235173","created_date":"2016-06-24T00:00:00"}
