{"id":"https://openalex.org/W1969300603","doi":"https://doi.org/10.1109/tcom.1980.1094742","title":"Offset Cassegrain Earth Station Antenna for the Japanese Domestic Satellite Communication System","display_name":"Offset Cassegrain Earth Station Antenna for the Japanese Domestic Satellite Communication System","publication_year":1980,"publication_date":"1980-06-01","ids":{"openalex":"https://openalex.org/W1969300603","doi":"https://doi.org/10.1109/tcom.1980.1094742","mag":"1969300603"},"language":"en","primary_location":{"id":"doi:10.1109/tcom.1980.1094742","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tcom.1980.1094742","pdf_url":null,"source":{"id":"https://openalex.org/S4210170832","display_name":"IRE Transactions on Communications Systems","issn_l":"0096-2244","issn":["0096-2244","2162-2132"],"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Communications","raw_type":"journal-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/A5004292093","display_name":"Tadashi Takano","orcid":"https://orcid.org/0000-0002-3356-7009"},"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"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"T. Takano","raw_affiliation_strings":["Research and Development Bureau, Nippon Telegraph and Telephone Public Corporation, Musashino, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Research and Development Bureau, Nippon Telegraph and Telephone Public Corporation, Musashino, Japan","institution_ids":["https://openalex.org/I2251713219"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5031465104","display_name":"Eiichi Ogawa","orcid":"https://orcid.org/0000-0002-5082-3967"},"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"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"E. Ogawa","raw_affiliation_strings":["Yokosuka Electrical Communication Laboratory, Nippon Telegraph and Telephone Public Corporation, Yokosuka, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Yokosuka Electrical Communication Laboratory, Nippon Telegraph and Telephone Public Corporation, Yokosuka, Japan","institution_ids":["https://openalex.org/I2251713219"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5016166324","display_name":"Toshikazu Hori","orcid":null},"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"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"T. Hori","raw_affiliation_strings":["Yokosuka Electrical Communication Laboratory, Nippon Telegraph and Telephone Public Corporation, Yokosuka, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Yokosuka Electrical Communication Laboratory, Nippon Telegraph and Telephone Public Corporation, Yokosuka, Japan","institution_ids":["https://openalex.org/I2251713219"]}]},{"author_position":"last","author":{"id":null,"display_name":"M. Shinji","orcid":null},"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"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"M. Shinji","raw_affiliation_strings":["Research and Development Bureau, Nippon Telegraph and Telephone Public Corporation, Musashino, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Research and Development Bureau, Nippon Telegraph and Telephone Public Corporation, Musashino, Japan","institution_ids":["https://openalex.org/I2251713219"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I2251713219"],"apc_list":null,"apc_paid":null,"fwci":28.4095,"has_fulltext":false,"cited_by_count":5,"citation_normalized_percentile":{"value":0.98805986,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":null,"biblio":{"volume":"28","issue":"6","first_page":"883","last_page":"889"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10069","display_name":"Antenna Design and Analysis","score":0.9937999844551086,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace 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/T10069","display_name":"Antenna Design and Analysis","score":0.9937999844551086,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace 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/T12450","display_name":"Radio Astronomy Observations and Technology","score":0.9866999983787537,"subfield":{"id":"https://openalex.org/subfields/3103","display_name":"Astronomy and Astrophysics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11946","display_name":"Antenna Design and Optimization","score":0.9833999872207642,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace 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/cassegrain-antenna","display_name":"Cassegrain antenna","score":0.8103747367858887},{"id":"https://openalex.org/keywords/periscope-antenna","display_name":"Periscope antenna","score":0.5893563628196716},{"id":"https://openalex.org/keywords/offset-dish-antenna","display_name":"Offset dish antenna","score":0.5576916933059692},{"id":"https://openalex.org/keywords/cassegrain-reflector","display_name":"Cassegrain reflector","score":0.4865816831588745},{"id":"https://openalex.org/keywords/offset","display_name":"Offset (computer science)","score":0.4660557210445404},{"id":"https://openalex.org/keywords/antenna-measurement","display_name":"Antenna measurement","score":0.46085256338119507},{"id":"https://openalex.org/keywords/directivity","display_name":"Directivity","score":0.45588573813438416},{"id":"https://openalex.org/keywords/antenna-rotator","display_name":"Antenna rotator","score":0.45585593581199646},{"id":"https://openalex.org/keywords/omnidirectional-antenna","display_name":"Omnidirectional antenna","score":0.43254250288009644},{"id":"https://openalex.org/keywords/reflector","display_name":"Reflector (photography)","score":0.4315072298049927},{"id":"https://openalex.org/keywords/antenna","display_name":"Antenna (radio)","score":0.4146215319633484},{"id":"https://openalex.org/keywords/antenna-gain","display_name":"Antenna gain","score":0.41011151671409607},{"id":"https://openalex.org/keywords/remote-sensing","display_name":"Remote sensing","score":0.3921249508857727},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.3879978358745575},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.3558579683303833},{"id":"https://openalex.org/keywords/electrical-engineering","display_name":"Electrical engineering","score":0.33918672800064087},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.2929602265357971},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.2622048556804657},{"id":"https://openalex.org/keywords/optics","display_name":"Optics","score":0.25826406478881836},{"id":"https://openalex.org/keywords/antenna-factor","display_name":"Antenna factor","score":0.2401312291622162},{"id":"https://openalex.org/keywords/coaxial-antenna","display_name":"Coaxial antenna","score":0.22772571444511414},{"id":"https://openalex.org/keywords/geology","display_name":"Geology","score":0.20848077535629272},{"id":"https://openalex.org/keywords/telescope","display_name":"Telescope","score":0.0586894154548645}],"concepts":[{"id":"https://openalex.org/C183006278","wikidata":"https://www.wikidata.org/wiki/Q5979730","display_name":"Cassegrain antenna","level":5,"score":0.8103747367858887},{"id":"https://openalex.org/C138949660","wikidata":"https://www.wikidata.org/wiki/Q7168757","display_name":"Periscope antenna","level":4,"score":0.5893563628196716},{"id":"https://openalex.org/C33193783","wikidata":"https://www.wikidata.org/wiki/Q1497823","display_name":"Offset dish antenna","level":5,"score":0.5576916933059692},{"id":"https://openalex.org/C192121959","wikidata":"https://www.wikidata.org/wiki/Q1048295","display_name":"Cassegrain reflector","level":3,"score":0.4865816831588745},{"id":"https://openalex.org/C175291020","wikidata":"https://www.wikidata.org/wiki/Q1156822","display_name":"Offset (computer science)","level":2,"score":0.4660557210445404},{"id":"https://openalex.org/C158616128","wikidata":"https://www.wikidata.org/wiki/Q4771260","display_name":"Antenna measurement","level":3,"score":0.46085256338119507},{"id":"https://openalex.org/C189039984","wikidata":"https://www.wikidata.org/wiki/Q8225412","display_name":"Directivity","level":3,"score":0.45588573813438416},{"id":"https://openalex.org/C107328001","wikidata":"https://www.wikidata.org/wiki/Q4771262","display_name":"Antenna rotator","level":5,"score":0.45585593581199646},{"id":"https://openalex.org/C24027999","wikidata":"https://www.wikidata.org/wiki/Q2176348","display_name":"Omnidirectional antenna","level":3,"score":0.43254250288009644},{"id":"https://openalex.org/C2778415886","wikidata":"https://www.wikidata.org/wiki/Q1823435","display_name":"Reflector (photography)","level":3,"score":0.4315072298049927},{"id":"https://openalex.org/C21822782","wikidata":"https://www.wikidata.org/wiki/Q131214","display_name":"Antenna (radio)","level":2,"score":0.4146215319633484},{"id":"https://openalex.org/C81183938","wikidata":"https://www.wikidata.org/wiki/Q251537","display_name":"Antenna gain","level":5,"score":0.41011151671409607},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.3921249508857727},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.3879978358745575},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.3558579683303833},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.33918672800064087},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.2929602265357971},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.2622048556804657},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.25826406478881836},{"id":"https://openalex.org/C196931383","wikidata":"https://www.wikidata.org/wiki/Q4771253","display_name":"Antenna factor","level":4,"score":0.2401312291622162},{"id":"https://openalex.org/C93130614","wikidata":"https://www.wikidata.org/wiki/Q5138671","display_name":"Coaxial antenna","level":4,"score":0.22772571444511414},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.20848077535629272},{"id":"https://openalex.org/C2780848835","wikidata":"https://www.wikidata.org/wiki/Q4213","display_name":"Telescope","level":2,"score":0.0586894154548645},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0},{"id":"https://openalex.org/C2982854487","wikidata":"https://www.wikidata.org/wiki/Q9128","display_name":"Light source","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tcom.1980.1094742","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tcom.1980.1094742","pdf_url":null,"source":{"id":"https://openalex.org/S4210170832","display_name":"IRE Transactions on Communications Systems","issn_l":"0096-2244","issn":["0096-2244","2162-2132"],"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Communications","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Sustainable cities and communities","score":0.5099999904632568,"id":"https://metadata.un.org/sdg/11"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":8,"referenced_works":["https://openalex.org/W2027176594","https://openalex.org/W2061043056","https://openalex.org/W2093482553","https://openalex.org/W2112129677","https://openalex.org/W2123810473","https://openalex.org/W2124018923","https://openalex.org/W2124713013","https://openalex.org/W2165671117"],"related_works":["https://openalex.org/W4220780704","https://openalex.org/W2749249719","https://openalex.org/W2388684989","https://openalex.org/W4386698274","https://openalex.org/W2532870017","https://openalex.org/W321449732","https://openalex.org/W2171481202","https://openalex.org/W2163952072","https://openalex.org/W1987907158","https://openalex.org/W2171673970"],"abstract_inverted_index":{"Offset":[0],"reflector":[1,29],"antennas":[2],"have":[3,22],"advantages":[4],"for":[5,35,50],"communication":[6,55],"systems":[7],"because":[8],"they":[9],"are":[10,89],"not":[11],"severely":[12],"subject":[13],"to":[14,92],"blocking.":[15],"Difficulties":[16],"mainly":[17],"arising":[18],"from":[19],"structual":[20],"asymmetries":[21],"inhibited":[23],"the":[24,41,51,108,117,127,139],"realization":[25],"of":[26,43],"an":[27,44,80],"offset":[28,45],"antenna":[30,49,99,111,130,134],"with":[31],"a":[32,103,120,132],"large":[33],"aperture":[34,64],"commercial":[36],"use.":[37],"This":[38],"paper":[39],"describes":[40],"design":[42],"Cassegrain":[46],"earth":[47,95,128],"station":[48,96,129],"Japanese":[52],"domestic":[53],"satellite":[54],"system.":[56],"Antenna":[57],"measurements":[58],"showed":[59],"76":[60],"and":[61,68,79,131],"69":[62],"percent":[63],"efficiencies":[65],"at":[66],"20":[67],"30":[69],"GHz,":[70],"respectively,":[71],"less":[72],"than":[73],"-20":[74],"dBi":[75],"wide":[76],"angle":[77],"directivity":[78],"18":[81],"K":[82],"noise":[83],"temperature":[84],"in":[85],"operating":[86],"conditions.":[87],"Performances":[88],"far":[90],"superior":[91],"conventional":[93],"axisymmetrical":[94],"antennas.":[97],"The":[98,110],"was":[100,113],"reassembled":[101],"on":[102,138],"telephone":[104],"office":[105],"building":[106,141],"after":[107],"measurements.":[109],"gain":[112],"reconfirmed":[114],"there,":[115],"using":[116],"sun":[118],"as":[119],"radio":[121],"frequency":[122],"source.":[123],"Experiments":[124],"show":[125],"that":[126],"terrestrial":[133],"can":[135],"be":[136],"placed":[137],"same":[140],"without":[142],"serious":[143],"interference.":[144]},"counts_by_year":[],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}