{"id":"https://openalex.org/W4411446159","doi":"https://doi.org/10.1109/access.2025.3581215","title":"Design of a Koch-Curved LPDA Antenna With Optimized Beamwidth to Improve the Aperture Efficiency of Reflector Antennas","display_name":"Design of a Koch-Curved LPDA Antenna With Optimized Beamwidth to Improve the Aperture Efficiency of Reflector Antennas","publication_year":2025,"publication_date":"2025-01-01","ids":{"openalex":"https://openalex.org/W4411446159","doi":"https://doi.org/10.1109/access.2025.3581215"},"language":"en","primary_location":{"id":"doi:10.1109/access.2025.3581215","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2025.3581215","pdf_url":null,"source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"is_core":true,"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":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Access","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://doi.org/10.1109/access.2025.3581215","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5114910880","display_name":"Ji-Young Park","orcid":"https://orcid.org/0009-0006-2454-6739"},"institutions":[{"id":"https://openalex.org/I94588446","display_name":"Hongik University","ror":"https://ror.org/00egdv862","country_code":"KR","type":"education","lineage":["https://openalex.org/I94588446"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Jiyoung Park","raw_affiliation_strings":["Department of Electronic and Electrical Engineering, Hongik University, Seoul, Republic of Korea","Department of Electronic, Electrical Engineering, Hongik University, Seoul, Republic of Korea"],"raw_orcid":"https://orcid.org/0009-0006-2454-6739","affiliations":[{"raw_affiliation_string":"Department of Electronic and Electrical Engineering, Hongik University, Seoul, Republic of Korea","institution_ids":["https://openalex.org/I94588446"]},{"raw_affiliation_string":"Department of Electronic, Electrical Engineering, Hongik University, Seoul, Republic of Korea","institution_ids":["https://openalex.org/I94588446"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5045594702","display_name":"Changhyeon Im","orcid":"https://orcid.org/0000-0002-8973-4398"},"institutions":[{"id":"https://openalex.org/I94588446","display_name":"Hongik University","ror":"https://ror.org/00egdv862","country_code":"KR","type":"education","lineage":["https://openalex.org/I94588446"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Changhyeon Im","raw_affiliation_strings":["Department of Electronic and Electrical Engineering, Hongik University, Seoul, Republic of Korea","Department of Electronic, Electrical Engineering, Hongik University, Seoul, Republic of Korea"],"raw_orcid":"https://orcid.org/0000-0002-8973-4398","affiliations":[{"raw_affiliation_string":"Department of Electronic and Electrical Engineering, Hongik University, Seoul, Republic of Korea","institution_ids":["https://openalex.org/I94588446"]},{"raw_affiliation_string":"Department of Electronic, Electrical Engineering, Hongik University, Seoul, Republic of Korea","institution_ids":["https://openalex.org/I94588446"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5052354904","display_name":"Hosung Choo","orcid":"https://orcid.org/0000-0002-8409-6964"},"institutions":[{"id":"https://openalex.org/I94588446","display_name":"Hongik University","ror":"https://ror.org/00egdv862","country_code":"KR","type":"education","lineage":["https://openalex.org/I94588446"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Hosung Choo","raw_affiliation_strings":["Department of Electronic and Electrical Engineering, Hongik University, Seoul, Republic of Korea","Department of Electronic, Electrical Engineering, Hongik University, Seoul, Republic of Korea"],"raw_orcid":"https://orcid.org/0000-0002-8409-6964","affiliations":[{"raw_affiliation_string":"Department of Electronic and Electrical Engineering, Hongik University, Seoul, Republic of Korea","institution_ids":["https://openalex.org/I94588446"]},{"raw_affiliation_string":"Department of Electronic, Electrical Engineering, Hongik University, Seoul, Republic of Korea","institution_ids":["https://openalex.org/I94588446"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":1850,"currency":"USD","value_usd":1850},"apc_paid":{"value":1850,"currency":"USD","value_usd":1850},"fwci":3.907,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":{"value":0.92857434,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":95,"max":98},"biblio":{"volume":"13","issue":null,"first_page":"106747","last_page":"106758"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10069","display_name":"Antenna Design and Analysis","score":0.9994999766349792,"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":0.9994999766349792,"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/T11946","display_name":"Antenna Design and Optimization","score":0.9976000189781189,"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/T11383","display_name":"Advanced Antenna and Metasurface Technologies","score":0.9973999857902527,"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/beamwidth","display_name":"Beamwidth","score":0.8654892444610596},{"id":"https://openalex.org/keywords/fan-beam-antenna","display_name":"Fan-beam antenna","score":0.7097214460372925},{"id":"https://openalex.org/keywords/directional-antenna","display_name":"Directional antenna","score":0.661220371723175},{"id":"https://openalex.org/keywords/reflector","display_name":"Reflector (photography)","score":0.6047087907791138},{"id":"https://openalex.org/keywords/cassegrain-antenna","display_name":"Cassegrain antenna","score":0.4867129623889923},{"id":"https://openalex.org/keywords/antenna","display_name":"Antenna (radio)","score":0.42161649465560913},{"id":"https://openalex.org/keywords/antenna-measurement","display_name":"Antenna measurement","score":0.4095473289489746},{"id":"https://openalex.org/keywords/periscope-antenna","display_name":"Periscope antenna","score":0.4093826711177826},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.40537840127944946},{"id":"https://openalex.org/keywords/optics","display_name":"Optics","score":0.37334173917770386},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.2670266628265381},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.23141860961914062}],"concepts":[{"id":"https://openalex.org/C190060920","wikidata":"https://www.wikidata.org/wiki/Q4876232","display_name":"Beamwidth","level":3,"score":0.8654892444610596},{"id":"https://openalex.org/C41919764","wikidata":"https://www.wikidata.org/wiki/Q1478693","display_name":"Fan-beam antenna","level":5,"score":0.7097214460372925},{"id":"https://openalex.org/C64671776","wikidata":"https://www.wikidata.org/wiki/Q769152","display_name":"Directional antenna","level":3,"score":0.661220371723175},{"id":"https://openalex.org/C2778415886","wikidata":"https://www.wikidata.org/wiki/Q1823435","display_name":"Reflector (photography)","level":3,"score":0.6047087907791138},{"id":"https://openalex.org/C183006278","wikidata":"https://www.wikidata.org/wiki/Q5979730","display_name":"Cassegrain antenna","level":5,"score":0.4867129623889923},{"id":"https://openalex.org/C21822782","wikidata":"https://www.wikidata.org/wiki/Q131214","display_name":"Antenna (radio)","level":2,"score":0.42161649465560913},{"id":"https://openalex.org/C158616128","wikidata":"https://www.wikidata.org/wiki/Q4771260","display_name":"Antenna measurement","level":3,"score":0.4095473289489746},{"id":"https://openalex.org/C138949660","wikidata":"https://www.wikidata.org/wiki/Q7168757","display_name":"Periscope antenna","level":4,"score":0.4093826711177826},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.40537840127944946},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.37334173917770386},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.2670266628265381},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.23141860961914062},{"id":"https://openalex.org/C2982854487","wikidata":"https://www.wikidata.org/wiki/Q9128","display_name":"Light source","level":2,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/access.2025.3581215","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2025.3581215","pdf_url":null,"source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"is_core":true,"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":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Access","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:e699f0b6f3654405b3f144c7c0ed78bb","is_oa":true,"landing_page_url":"https://doaj.org/article/e699f0b6f3654405b3f144c7c0ed78bb","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"IEEE Access, Vol 13, Pp 106747-106758 (2025)","raw_type":"article"}],"best_oa_location":{"id":"doi:10.1109/access.2025.3581215","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2025.3581215","pdf_url":null,"source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"is_core":true,"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":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Access","raw_type":"journal-article"},"sustainable_development_goals":[{"score":0.8700000047683716,"display_name":"Affordable and clean energy","id":"https://metadata.un.org/sdg/7"}],"awards":[],"funders":[{"id":"https://openalex.org/F2292562827","display_name":"Korea Research Institute for Defense Technology Planning and Advancement","ror":null}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":31,"referenced_works":["https://openalex.org/W1982230647","https://openalex.org/W1995425692","https://openalex.org/W2032122115","https://openalex.org/W2095644472","https://openalex.org/W2112304691","https://openalex.org/W2114794097","https://openalex.org/W2121655788","https://openalex.org/W2128004176","https://openalex.org/W2146918117","https://openalex.org/W2157243108","https://openalex.org/W2166196820","https://openalex.org/W2305406626","https://openalex.org/W2325093581","https://openalex.org/W2481840391","https://openalex.org/W2550927297","https://openalex.org/W2576067469","https://openalex.org/W3007488129","https://openalex.org/W3011730915","https://openalex.org/W3039719415","https://openalex.org/W3040607629","https://openalex.org/W3101736319","https://openalex.org/W3195645498","https://openalex.org/W4206218214","https://openalex.org/W4225568660","https://openalex.org/W4237585367","https://openalex.org/W4285088547","https://openalex.org/W4319663065","https://openalex.org/W4386608794","https://openalex.org/W4387520452","https://openalex.org/W4399249833","https://openalex.org/W4401568311"],"related_works":["https://openalex.org/W2140465947","https://openalex.org/W4233848343","https://openalex.org/W2908522313","https://openalex.org/W2326692022","https://openalex.org/W2369616506","https://openalex.org/W1572667478","https://openalex.org/W2095921794","https://openalex.org/W4230870741","https://openalex.org/W321449732","https://openalex.org/W4395661805"],"abstract_inverted_index":{"In":[0],"this":[1],"paper,":[2],"we":[3],"propose":[4],"a":[5,20,60,96,105,173],"Koch-curved":[6,27],"log-periodic":[7],"dipole":[8,28,56],"array":[9,57],"(LPDA)":[10],"antenna":[11,23,76,94,176],"with":[12,121],"wideband":[13,106,159],"characteristics":[14,85,160],"and":[15,48,82,113,161],"an":[16,89,114,122,135,162],"optimal":[17],"beamwidth":[18,41,118,164],"as":[19,78,172],"reflector":[21,174],"feed":[22,133,175],"for":[24],"SIGINT":[25,179],"satellites.":[26],"elements":[29],"are":[30,86],"employed":[31],"to":[32,54,66,110,147],"improve":[33,67],"aperture":[34],"efficiency":[35],"by":[36,44],"adjusting":[37],"the":[38,46,51,55,68,74,79,131,154,166,178],"beamwidth.":[39],"The":[40,71,92,150],"is":[42,64,142,170],"adjusted":[43],"changing":[45],"angle":[47],"size":[49],"of":[50,73,99,119,126,139],"Koch-curve":[52],"applied":[53,65],"elements.":[58],"Additionally,":[59],"tapered":[61],"line":[62],"boom":[63],"matching":[69],"characteristics.":[70],"performance":[72],"proposed":[75,93,132,155],"such":[77],"reflection":[80,97],"coefficients":[81],"radiation":[83],"pattern":[84],"measured":[87,143],"in":[88,177],"anechoic":[90],"chamber.":[91],"shows":[95],"coefficient":[98],"less":[100],"than":[101],"\u22128":[102],"dB":[103,117],"over":[104],"from":[107,144],"2.1":[108],"GHz":[109,112,146],"8":[111],"average":[115,123,136],"8.6":[116],"109.6\u00b0":[120],"bore-sight":[124,137],"gain":[125,138],"6.6":[127],"dBi.":[128],"Furthermore,":[129],"using":[130],"antenna,":[134,156],"30.9":[140],"dBi":[141],"2":[145],"6":[148],"GHz.":[149],"results":[151],"confirm":[152],"that":[153],"which":[157],"has":[158],"optimized":[163],"across":[165],"operating":[167],"frequency":[168],"range,":[169],"suitable":[171],"satellite":[180],"application.":[181]},"counts_by_year":[{"year":2026,"cited_by_count":1}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}
