{"id":"https://openalex.org/W2112183435","doi":"https://doi.org/10.1109/tgrs.2002.1010903","title":"A new measurement technique for obtaining the complex relative permittivity of terrain surfaces","display_name":"A new measurement technique for obtaining the complex relative permittivity of terrain surfaces","publication_year":2002,"publication_date":"2002-05-01","ids":{"openalex":"https://openalex.org/W2112183435","doi":"https://doi.org/10.1109/tgrs.2002.1010903","mag":"2112183435"},"language":"en","primary_location":{"id":"doi:10.1109/tgrs.2002.1010903","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tgrs.2002.1010903","pdf_url":null,"source":{"id":"https://openalex.org/S111326731","display_name":"IEEE Transactions on Geoscience and Remote Sensing","issn_l":"0196-2892","issn":["0196-2892","1558-0644"],"is_oa":false,"is_in_doaj":false,"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":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Geoscience and Remote Sensing","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/A5014488079","display_name":"Heung Soo Kim","orcid":"https://orcid.org/0000-0001-7057-5174"},"institutions":[{"id":"https://openalex.org/I391668","display_name":"Cheju Halla University","ror":"https://ror.org/02keg3263","country_code":"KR","type":"education","lineage":["https://openalex.org/I391668"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Heung-Soo Kim","raw_affiliation_strings":["Faculty of Telecommunication and Computer Engineering, Cheju National University, Cheju, South Korea","Fac. of Telecommun. & Comput. Engineeging, Cheju Nat. Univ., South Korea"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Faculty of Telecommunication and Computer Engineering, Cheju National University, Cheju, South Korea","institution_ids":["https://openalex.org/I391668"]},{"raw_affiliation_string":"Fac. of Telecommun. & Comput. Engineeging, Cheju Nat. Univ., South Korea","institution_ids":["https://openalex.org/I391668"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5033761398","display_name":"Ram Narayanan","orcid":null},"institutions":[{"id":"https://openalex.org/I114395901","display_name":"University of Nebraska\u2013Lincoln","ror":"https://ror.org/043mer456","country_code":"US","type":"education","lineage":["https://openalex.org/I114395901"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"R.A. Narayanan","raw_affiliation_strings":["Department of Electrical Engineering, Center for Electro-Optics, University of Nebraska, Lincolnshire, NE, USA","Electrical Engineering"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical Engineering, Center for Electro-Optics, University of Nebraska, Lincolnshire, NE, USA","institution_ids":["https://openalex.org/I114395901"]},{"raw_affiliation_string":"Electrical Engineering","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.3441,"has_fulltext":false,"cited_by_count":11,"citation_normalized_percentile":{"value":0.60288601,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":96},"biblio":{"volume":"40","issue":"5","first_page":"1190","last_page":"1194"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10936","display_name":"Millimeter-Wave Propagation and Modeling","score":0.9972000122070312,"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/T10936","display_name":"Millimeter-Wave Propagation and Modeling","score":0.9972000122070312,"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/T11383","display_name":"Advanced Antenna and Metasurface Technologies","score":0.996399998664856,"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":0.9951000213623047,"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/permittivity","display_name":"Permittivity","score":0.724789023399353},{"id":"https://openalex.org/keywords/relative-permittivity","display_name":"Relative permittivity","score":0.6733712553977966},{"id":"https://openalex.org/keywords/terrain","display_name":"Terrain","score":0.6657177209854126},{"id":"https://openalex.org/keywords/reflection-coefficient","display_name":"Reflection coefficient","score":0.6410629749298096},{"id":"https://openalex.org/keywords/intersection","display_name":"Intersection (aeronautics)","score":0.5610283017158508},{"id":"https://openalex.org/keywords/optics","display_name":"Optics","score":0.5377678275108337},{"id":"https://openalex.org/keywords/reflection","display_name":"Reflection (computer programming)","score":0.4725860357284546},{"id":"https://openalex.org/keywords/surface","display_name":"Surface (topology)","score":0.4690079391002655},{"id":"https://openalex.org/keywords/point","display_name":"Point (geometry)","score":0.42225217819213867},{"id":"https://openalex.org/keywords/geology","display_name":"Geology","score":0.35788482427597046},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.32536250352859497},{"id":"https://openalex.org/keywords/geometry","display_name":"Geometry","score":0.30770063400268555},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.26231592893600464},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.22006437182426453},{"id":"https://openalex.org/keywords/dielectric","display_name":"Dielectric","score":0.19037115573883057},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.1694069504737854},{"id":"https://openalex.org/keywords/electrical-engineering","display_name":"Electrical engineering","score":0.1031290590763092}],"concepts":[{"id":"https://openalex.org/C168651791","wikidata":"https://www.wikidata.org/wiki/Q211569","display_name":"Permittivity","level":3,"score":0.724789023399353},{"id":"https://openalex.org/C13760523","wikidata":"https://www.wikidata.org/wiki/Q4027242","display_name":"Relative permittivity","level":4,"score":0.6733712553977966},{"id":"https://openalex.org/C161840515","wikidata":"https://www.wikidata.org/wiki/Q186131","display_name":"Terrain","level":2,"score":0.6657177209854126},{"id":"https://openalex.org/C41700454","wikidata":"https://www.wikidata.org/wiki/Q1852282","display_name":"Reflection coefficient","level":2,"score":0.6410629749298096},{"id":"https://openalex.org/C64543145","wikidata":"https://www.wikidata.org/wiki/Q162942","display_name":"Intersection (aeronautics)","level":2,"score":0.5610283017158508},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.5377678275108337},{"id":"https://openalex.org/C65682993","wikidata":"https://www.wikidata.org/wiki/Q1056451","display_name":"Reflection (computer programming)","level":2,"score":0.4725860357284546},{"id":"https://openalex.org/C2776799497","wikidata":"https://www.wikidata.org/wiki/Q484298","display_name":"Surface (topology)","level":2,"score":0.4690079391002655},{"id":"https://openalex.org/C28719098","wikidata":"https://www.wikidata.org/wiki/Q44946","display_name":"Point (geometry)","level":2,"score":0.42225217819213867},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.35788482427597046},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.32536250352859497},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.30770063400268555},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.26231592893600464},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.22006437182426453},{"id":"https://openalex.org/C133386390","wikidata":"https://www.wikidata.org/wiki/Q184996","display_name":"Dielectric","level":2,"score":0.19037115573883057},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.1694069504737854},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.1031290590763092},{"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/C146978453","wikidata":"https://www.wikidata.org/wiki/Q3798668","display_name":"Aerospace engineering","level":1,"score":0.0},{"id":"https://openalex.org/C18903297","wikidata":"https://www.wikidata.org/wiki/Q7150","display_name":"Ecology","level":1,"score":0.0},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tgrs.2002.1010903","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tgrs.2002.1010903","pdf_url":null,"source":{"id":"https://openalex.org/S111326731","display_name":"IEEE Transactions on Geoscience and Remote Sensing","issn_l":"0196-2892","issn":["0196-2892","1558-0644"],"is_oa":false,"is_in_doaj":false,"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":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Geoscience and Remote Sensing","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/15","score":0.5400000214576721,"display_name":"Life in Land"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":15,"referenced_works":["https://openalex.org/W1601558889","https://openalex.org/W1769242438","https://openalex.org/W2047190101","https://openalex.org/W2088202339","https://openalex.org/W2111571624","https://openalex.org/W2124747945","https://openalex.org/W2142572622","https://openalex.org/W2144328390","https://openalex.org/W2149922723","https://openalex.org/W2154731227","https://openalex.org/W2154841070","https://openalex.org/W2156433148","https://openalex.org/W2162288633","https://openalex.org/W2169577479","https://openalex.org/W2169580467"],"related_works":["https://openalex.org/W2107320019","https://openalex.org/W4391114742","https://openalex.org/W2905363763","https://openalex.org/W2313079490","https://openalex.org/W3091232865","https://openalex.org/W4238822153","https://openalex.org/W2333849723","https://openalex.org/W2600143927","https://openalex.org/W2521355531","https://openalex.org/W4380686309"],"abstract_inverted_index":{"A":[0,120],"new":[1],"method":[2,125],"for":[3,81],"measuring":[4,77],"the":[5,21,32,38,46,50,65,70,78,83,88,92,130],"effective":[6],"complex":[7,33,72],"relative":[8,89],"permittivity":[9,90],"of":[10,28,56,91,109,123],"a":[11,29,136],"reflecting":[12],"surface":[13,93],"is":[14,18,99,126],"presented.":[15],"The":[16,53,97],"approach":[17],"based":[19],"on":[20],"two-ray":[22,51],"model.":[23,52],"We":[24],"derive":[25],"an":[26],"equation":[27],"circle":[30],"representing":[31],"reflection":[34,73],"coefficient":[35,74],"which":[36],"relates":[37],"incidence":[39,67],"angle,":[40,68],"frequency,":[41],"and":[42,85,117],"received":[43,79],"power":[44,80],"from":[45],"path":[47],"gain":[48],"using":[49,101],"intersection":[54],"point":[55],"three":[57],"such":[58,113],"circles":[59],"at":[60],"different":[61],"heights,":[62],"while":[63],"maintaining":[64],"same":[66],"yields":[69],"correct":[71],"value.":[75],"By":[76],"both":[82],"vertical":[84],"horizontal":[86],"polarizations,":[87],"can":[94],"be":[95],"determined.":[96],"technique":[98],"validated":[100],"computer":[102],"simulation,":[103],"as":[104,106,114],"well":[105],"field":[107],"measurements":[108],"typical":[110],"terrain":[111],"surfaces,":[112],"asphalt,":[115],"grass,":[116],"bare":[118],"soil.":[119],"major":[121],"advantage":[122],"this":[124],"that":[127],"it":[128],"obviates":[129],"need":[131],"to":[132],"use":[133],"antennas":[134],"with":[135],"narrow":[137],"beam":[138],"pattern.":[139]},"counts_by_year":[{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":1},{"year":2017,"cited_by_count":1},{"year":2013,"cited_by_count":2},{"year":2012,"cited_by_count":1}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}
