{"id":"https://openalex.org/W4387802471","doi":"https://doi.org/10.1109/igarss52108.2023.10282196","title":"A Novel Method of Beam Collimation Factor Estimation for EOS-04 Active Phased Array Antenna","display_name":"A Novel Method of Beam Collimation Factor Estimation for EOS-04 Active Phased Array Antenna","publication_year":2023,"publication_date":"2023-07-16","ids":{"openalex":"https://openalex.org/W4387802471","doi":"https://doi.org/10.1109/igarss52108.2023.10282196"},"language":"en","primary_location":{"id":"doi:10.1109/igarss52108.2023.10282196","is_oa":false,"landing_page_url":"http://dx.doi.org/10.1109/igarss52108.2023.10282196","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IGARSS 2023 - 2023 IEEE International Geoscience and Remote Sensing 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/A5074108770","display_name":"Partha Sarathi Nandy","orcid":null},"institutions":[{"id":"https://openalex.org/I1289461252","display_name":"Indian Space Research Organisation","ror":"https://ror.org/00cwrns71","country_code":"IN","type":"government","lineage":["https://openalex.org/I1289461252","https://openalex.org/I3148377317"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Partha Sarathi Nandy","raw_affiliation_strings":["ISRO,Space Applications Centre (SAC),Ahmedabad,380015"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"ISRO,Space Applications Centre (SAC),Ahmedabad,380015","institution_ids":["https://openalex.org/I1289461252"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5011741500","display_name":"Yogendra Sahu","orcid":null},"institutions":[{"id":"https://openalex.org/I1289461252","display_name":"Indian Space Research Organisation","ror":"https://ror.org/00cwrns71","country_code":"IN","type":"government","lineage":["https://openalex.org/I1289461252","https://openalex.org/I3148377317"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Yogendra Sahu","raw_affiliation_strings":["ISRO,Space Applications Centre (SAC),Ahmedabad,380015"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"ISRO,Space Applications Centre (SAC),Ahmedabad,380015","institution_ids":["https://openalex.org/I1289461252"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5043467628","display_name":"Ashok Rohada","orcid":null},"institutions":[{"id":"https://openalex.org/I1289461252","display_name":"Indian Space Research Organisation","ror":"https://ror.org/00cwrns71","country_code":"IN","type":"government","lineage":["https://openalex.org/I1289461252","https://openalex.org/I3148377317"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Ashok Rohada","raw_affiliation_strings":["ISRO,Space Applications Centre (SAC),Ahmedabad,380015"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"ISRO,Space Applications Centre (SAC),Ahmedabad,380015","institution_ids":["https://openalex.org/I1289461252"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5044454738","display_name":"Ameya A. Kesarkar","orcid":null},"institutions":[{"id":"https://openalex.org/I1289461252","display_name":"Indian Space Research Organisation","ror":"https://ror.org/00cwrns71","country_code":"IN","type":"government","lineage":["https://openalex.org/I1289461252","https://openalex.org/I3148377317"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Ameya A. Kesarkar","raw_affiliation_strings":["ISRO,Space Applications Centre (SAC),Ahmedabad,380015"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"ISRO,Space Applications Centre (SAC),Ahmedabad,380015","institution_ids":["https://openalex.org/I1289461252"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5065620608","display_name":"Vetal Akshay Pandit","orcid":null},"institutions":[{"id":"https://openalex.org/I1289461252","display_name":"Indian Space Research Organisation","ror":"https://ror.org/00cwrns71","country_code":"IN","type":"government","lineage":["https://openalex.org/I1289461252","https://openalex.org/I3148377317"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Vetal Akshay Pandit","raw_affiliation_strings":["ISRO,Space Applications Centre (SAC),Ahmedabad,380015"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"ISRO,Space Applications Centre (SAC),Ahmedabad,380015","institution_ids":["https://openalex.org/I1289461252"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5035259148","display_name":"Swati Duggal","orcid":null},"institutions":[{"id":"https://openalex.org/I1289461252","display_name":"Indian Space Research Organisation","ror":"https://ror.org/00cwrns71","country_code":"IN","type":"government","lineage":["https://openalex.org/I1289461252","https://openalex.org/I3148377317"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Swati Duggal","raw_affiliation_strings":["ISRO,Space Applications Centre (SAC),Ahmedabad,380015"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"ISRO,Space Applications Centre (SAC),Ahmedabad,380015","institution_ids":["https://openalex.org/I1289461252"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5025308278","display_name":"Jiayu Rao","orcid":"https://orcid.org/0000-0002-7853-0664"},"institutions":[{"id":"https://openalex.org/I1289461252","display_name":"Indian Space Research Organisation","ror":"https://ror.org/00cwrns71","country_code":"IN","type":"government","lineage":["https://openalex.org/I1289461252","https://openalex.org/I3148377317"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"J. Rao","raw_affiliation_strings":["ISRO,Space Applications Centre (SAC),Ahmedabad,380015"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"ISRO,Space Applications Centre (SAC),Ahmedabad,380015","institution_ids":["https://openalex.org/I1289461252"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5037397110","display_name":"Pankaj Kanti Nath","orcid":null},"institutions":[{"id":"https://openalex.org/I1289461252","display_name":"Indian Space Research Organisation","ror":"https://ror.org/00cwrns71","country_code":"IN","type":"government","lineage":["https://openalex.org/I1289461252","https://openalex.org/I3148377317"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Pankaj K Nath","raw_affiliation_strings":["ISRO,Space Applications Centre (SAC),Ahmedabad,380015"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"ISRO,Space Applications Centre (SAC),Ahmedabad,380015","institution_ids":["https://openalex.org/I1289461252"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5108717682","display_name":"Milind Mahajan","orcid":null},"institutions":[{"id":"https://openalex.org/I1289461252","display_name":"Indian Space Research Organisation","ror":"https://ror.org/00cwrns71","country_code":"IN","type":"government","lineage":["https://openalex.org/I1289461252","https://openalex.org/I3148377317"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Milind B. Mahajan","raw_affiliation_strings":["ISRO,Space Applications Centre (SAC),Ahmedabad,380015"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"ISRO,Space Applications Centre (SAC),Ahmedabad,380015","institution_ids":["https://openalex.org/I1289461252"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5010338975","display_name":"Ch. V. N. Rao","orcid":"https://orcid.org/0000-0001-6582-2994"},"institutions":[{"id":"https://openalex.org/I1289461252","display_name":"Indian Space Research Organisation","ror":"https://ror.org/00cwrns71","country_code":"IN","type":"government","lineage":["https://openalex.org/I1289461252","https://openalex.org/I3148377317"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Ch. V. N. Rao","raw_affiliation_strings":["ISRO,Space Applications Centre (SAC),Ahmedabad,380015"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"ISRO,Space Applications Centre (SAC),Ahmedabad,380015","institution_ids":["https://openalex.org/I1289461252"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":10,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.1227,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":{"value":0.44823789,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":91,"max":95},"biblio":{"volume":null,"issue":null,"first_page":"4314","last_page":"4317"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11851","display_name":"Electromagnetic Compatibility and Measurements","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/T11851","display_name":"Electromagnetic Compatibility and Measurements","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/T11946","display_name":"Antenna Design and Optimization","score":0.9991000294685364,"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/T10069","display_name":"Antenna Design and Analysis","score":0.9965999722480774,"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/collimated-light","display_name":"Collimated light","score":0.7390044927597046},{"id":"https://openalex.org/keywords/optics","display_name":"Optics","score":0.6459851264953613},{"id":"https://openalex.org/keywords/antenna","display_name":"Antenna (radio)","score":0.6335619688034058},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.5343019366264343},{"id":"https://openalex.org/keywords/phased-array","display_name":"Phased array","score":0.5070362091064453},{"id":"https://openalex.org/keywords/beam","display_name":"Beam (structure)","score":0.494095116853714},{"id":"https://openalex.org/keywords/antenna-aperture","display_name":"Antenna aperture","score":0.4748264253139496},{"id":"https://openalex.org/keywords/aperture","display_name":"Aperture (computer memory)","score":0.4338573217391968},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.34105104207992554},{"id":"https://openalex.org/keywords/dipole-antenna","display_name":"Dipole antenna","score":0.3293144106864929},{"id":"https://openalex.org/keywords/acoustics","display_name":"Acoustics","score":0.2711303234100342},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.15012988448143005}],"concepts":[{"id":"https://openalex.org/C34445779","wikidata":"https://www.wikidata.org/wiki/Q1571347","display_name":"Collimated light","level":3,"score":0.7390044927597046},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.6459851264953613},{"id":"https://openalex.org/C21822782","wikidata":"https://www.wikidata.org/wiki/Q131214","display_name":"Antenna (radio)","level":2,"score":0.6335619688034058},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.5343019366264343},{"id":"https://openalex.org/C55494473","wikidata":"https://www.wikidata.org/wiki/Q727898","display_name":"Phased array","level":3,"score":0.5070362091064453},{"id":"https://openalex.org/C168834538","wikidata":"https://www.wikidata.org/wiki/Q3705329","display_name":"Beam (structure)","level":2,"score":0.494095116853714},{"id":"https://openalex.org/C137705275","wikidata":"https://www.wikidata.org/wiki/Q571946","display_name":"Antenna aperture","level":4,"score":0.4748264253139496},{"id":"https://openalex.org/C78336883","wikidata":"https://www.wikidata.org/wiki/Q4779385","display_name":"Aperture (computer memory)","level":2,"score":0.4338573217391968},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.34105104207992554},{"id":"https://openalex.org/C113145756","wikidata":"https://www.wikidata.org/wiki/Q1126859","display_name":"Dipole antenna","level":3,"score":0.3293144106864929},{"id":"https://openalex.org/C24890656","wikidata":"https://www.wikidata.org/wiki/Q82811","display_name":"Acoustics","level":1,"score":0.2711303234100342},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.15012988448143005},{"id":"https://openalex.org/C520434653","wikidata":"https://www.wikidata.org/wiki/Q38867","display_name":"Laser","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/igarss52108.2023.10282196","is_oa":false,"landing_page_url":"http://dx.doi.org/10.1109/igarss52108.2023.10282196","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IGARSS 2023 - 2023 IEEE International Geoscience and Remote Sensing Symposium","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.7200000286102295,"id":"https://metadata.un.org/sdg/7","display_name":"Affordable and clean energy"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":8,"referenced_works":["https://openalex.org/W568786673","https://openalex.org/W583228457","https://openalex.org/W1968175153","https://openalex.org/W2108204661","https://openalex.org/W2345574981","https://openalex.org/W3206376143","https://openalex.org/W4237764598","https://openalex.org/W4238450024"],"related_works":["https://openalex.org/W3010205614","https://openalex.org/W2534144862","https://openalex.org/W2155870824","https://openalex.org/W4390871515","https://openalex.org/W2365758969","https://openalex.org/W3195947701","https://openalex.org/W3128148104","https://openalex.org/W2114140993","https://openalex.org/W2040668709","https://openalex.org/W2039405359"],"abstract_inverted_index":{"EOS-04,":[0],"a":[1,46],"C-band":[2],"active":[3,57],"array":[4,59],"antenna":[5,38,60,119],"based":[6,36],"Synthetic":[7],"Aperture":[8],"RADAR":[9],"(SAR)":[10],"launched":[11],"by":[12],"ISRO,":[13],"provides":[14],"continuity":[15],"of":[16,55,64,70,79],"the":[17],"services":[18],"to":[19,49],"its":[20],"predecessor":[21],"RISAT-1.":[22],"It":[23],"is":[24,105,116],"equipped":[25],"with":[26,88,107],"advanced":[27],"features":[28],"such":[29],"as":[30],"full":[31],"polarimetric":[32],"mode":[33],"and":[34,85,113,129],"computation":[35],"onboard":[37],"beam":[39,52,102,126,132],"forming.":[40],"In":[41],"this":[42,99],"paper,":[43],"we":[44],"present":[45],"novel":[47],"method":[48],"compute":[50],"complex":[51],"collimation":[53,103,127,133],"factor":[54,104],"large-sized":[56],"phased":[58],"(6m":[61],"x":[62],"2m)":[63],"EOS-04":[65],"payload":[66],"using":[67,123],"far-field":[68,124],"information":[69],"sequentially":[71],"excited":[72],"Transmit-Receive":[73],"Integrated":[74],"modules":[75],"(TRiM),":[76],"which":[77],"consist":[78],"Transmit":[80],"Receive":[81],"pairs":[82],"for":[83,98],"H":[84],"V":[86],"chain":[87],"controller.":[89],"We":[90],"utilize":[91],"ISRO\u2019s":[92],"Compact":[93],"Antenna":[94],"Test":[95],"Facility":[96],"(CATF)":[97],"purpose.":[100],"Estimated":[101],"compared":[106],"factors":[108,128],"generated":[109,122],"from":[110],"Near-Field":[111],"measurement":[112],"close":[114],"match":[115],"observed.":[117],"Finally,":[118],"patterns":[120],"are":[121],"estimated":[125,131],"near-field":[130],"factors.":[134]},"counts_by_year":[{"year":2025,"cited_by_count":1}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}
