{"id":"https://openalex.org/W2160506934","doi":"https://doi.org/10.1109/pimrc.2002.1045505","title":"Low-loss tuning circuits for frequency-tunable small resonant antennas","display_name":"Low-loss tuning circuits for frequency-tunable small resonant antennas","publication_year":2003,"publication_date":"2003-08-27","ids":{"openalex":"https://openalex.org/W2160506934","doi":"https://doi.org/10.1109/pimrc.2002.1045505","mag":"2160506934"},"language":"en","primary_location":{"id":"doi:10.1109/pimrc.2002.1045505","is_oa":false,"landing_page_url":"https://doi.org/10.1109/pimrc.2002.1045505","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"The 13th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications","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/A5062591737","display_name":"J. Ollikainen","orcid":null},"institutions":[{"id":"https://openalex.org/I133731052","display_name":"University of Helsinki","ror":"https://ror.org/040af2s02","country_code":"FI","type":"education","lineage":["https://openalex.org/I133731052"]}],"countries":["FI"],"is_corresponding":true,"raw_author_name":"J. Ollikainen","raw_affiliation_strings":["Helsinki University of Technology, Radio Laboratory, HUT, Finland"],"affiliations":[{"raw_affiliation_string":"Helsinki University of Technology, Radio Laboratory, HUT, Finland","institution_ids":["https://openalex.org/I133731052"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5054638921","display_name":"Outi Kivek\u00e4s","orcid":null},"institutions":[{"id":"https://openalex.org/I133731052","display_name":"University of Helsinki","ror":"https://ror.org/040af2s02","country_code":"FI","type":"education","lineage":["https://openalex.org/I133731052"]}],"countries":["FI"],"is_corresponding":false,"raw_author_name":"O. Kivekas","raw_affiliation_strings":["Helsinki University of Technology, Radio Laboratory, HUT, Finland"],"affiliations":[{"raw_affiliation_string":"Helsinki University of Technology, Radio Laboratory, HUT, Finland","institution_ids":["https://openalex.org/I133731052"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5043756635","display_name":"P. Vainikainen","orcid":null},"institutions":[{"id":"https://openalex.org/I133731052","display_name":"University of Helsinki","ror":"https://ror.org/040af2s02","country_code":"FI","type":"education","lineage":["https://openalex.org/I133731052"]}],"countries":["FI"],"is_corresponding":false,"raw_author_name":"P. Vainikainen","raw_affiliation_strings":["Helsinki University of Technology, Radio Laboratory, HUT, Finland"],"affiliations":[{"raw_affiliation_string":"Helsinki University of Technology, Radio Laboratory, HUT, Finland","institution_ids":["https://openalex.org/I133731052"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5062591737"],"corresponding_institution_ids":["https://openalex.org/I133731052"],"apc_list":null,"apc_paid":null,"fwci":1.6455,"has_fulltext":false,"cited_by_count":20,"citation_normalized_percentile":{"value":0.86505174,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":97},"biblio":{"volume":"4","issue":null,"first_page":"1882","last_page":"1887"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10069","display_name":"Antenna Design and Analysis","score":1.0,"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":1.0,"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":0.9997000098228455,"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/T10262","display_name":"Microwave Engineering and Waveguides","score":0.9994999766349792,"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/narrowband","display_name":"Narrowband","score":0.7487366199493408},{"id":"https://openalex.org/keywords/electronic-circuit","display_name":"Electronic circuit","score":0.6440036296844482},{"id":"https://openalex.org/keywords/rlc-circuit","display_name":"RLC circuit","score":0.5502300262451172},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.5282719731330872},{"id":"https://openalex.org/keywords/antenna","display_name":"Antenna (radio)","score":0.5053570866584778},{"id":"https://openalex.org/keywords/power","display_name":"Power (physics)","score":0.4578794836997986},{"id":"https://openalex.org/keywords/equivalent-circuit","display_name":"Equivalent circuit","score":0.4564130902290344},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.41847896575927734},{"id":"https://openalex.org/keywords/topology","display_name":"Topology (electrical circuits)","score":0.3222266137599945},{"id":"https://openalex.org/keywords/electrical-engineering","display_name":"Electrical engineering","score":0.2831971347332001},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.24726036190986633},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.2355223298072815},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.1942773163318634},{"id":"https://openalex.org/keywords/capacitor","display_name":"Capacitor","score":0.1447366178035736}],"concepts":[{"id":"https://openalex.org/C2776096036","wikidata":"https://www.wikidata.org/wiki/Q1140483","display_name":"Narrowband","level":2,"score":0.7487366199493408},{"id":"https://openalex.org/C134146338","wikidata":"https://www.wikidata.org/wiki/Q1815901","display_name":"Electronic circuit","level":2,"score":0.6440036296844482},{"id":"https://openalex.org/C89880566","wikidata":"https://www.wikidata.org/wiki/Q323477","display_name":"RLC circuit","level":4,"score":0.5502300262451172},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.5282719731330872},{"id":"https://openalex.org/C21822782","wikidata":"https://www.wikidata.org/wiki/Q131214","display_name":"Antenna (radio)","level":2,"score":0.5053570866584778},{"id":"https://openalex.org/C163258240","wikidata":"https://www.wikidata.org/wiki/Q25342","display_name":"Power (physics)","level":2,"score":0.4578794836997986},{"id":"https://openalex.org/C23572009","wikidata":"https://www.wikidata.org/wiki/Q964981","display_name":"Equivalent circuit","level":3,"score":0.4564130902290344},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.41847896575927734},{"id":"https://openalex.org/C184720557","wikidata":"https://www.wikidata.org/wiki/Q7825049","display_name":"Topology (electrical circuits)","level":2,"score":0.3222266137599945},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.2831971347332001},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.24726036190986633},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.2355223298072815},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.1942773163318634},{"id":"https://openalex.org/C52192207","wikidata":"https://www.wikidata.org/wiki/Q5322","display_name":"Capacitor","level":3,"score":0.1447366178035736},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C165801399","wikidata":"https://www.wikidata.org/wiki/Q25428","display_name":"Voltage","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/pimrc.2002.1045505","is_oa":false,"landing_page_url":"https://doi.org/10.1109/pimrc.2002.1045505","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"The 13th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Affordable and clean energy","id":"https://metadata.un.org/sdg/7","score":0.8500000238418579}],"awards":[],"funders":[{"id":"https://openalex.org/F4320322861","display_name":"Emil Aaltosen S\u00e4\u00e4ti\u00f6","ror":"https://ror.org/005rt3g54"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":10,"referenced_works":["https://openalex.org/W1822826340","https://openalex.org/W1976888174","https://openalex.org/W1986666773","https://openalex.org/W2001454514","https://openalex.org/W2080792018","https://openalex.org/W2090304689","https://openalex.org/W2122819459","https://openalex.org/W2163777267","https://openalex.org/W2170956927","https://openalex.org/W2999363671"],"related_works":["https://openalex.org/W2391711312","https://openalex.org/W2132687327","https://openalex.org/W2360371044","https://openalex.org/W1964845213","https://openalex.org/W2806213293","https://openalex.org/W2948555714","https://openalex.org/W2327142020","https://openalex.org/W1983689595","https://openalex.org/W4313018643","https://openalex.org/W2430756689"],"abstract_inverted_index":{"Minimization":[0],"of":[1,8,40,49],"power":[2,26],"loss":[3,27],"in":[4,28],"the":[5,20,24,47,58,80,90],"tuning":[6,30,59],"circuits":[7,31],"frequency-tunable":[9],"small":[10],"resonant":[11,43],"antennas,":[12],"such":[13],"as":[14],"microstrip":[15],"patches,":[16],"is":[17,95],"studied.":[18],"First,":[19],"frequency":[21,50],"shift":[22,51],"and":[23,52,75,106],"associated":[25],"certain":[29],"are":[32,109],"theoretically":[33],"calculated":[34],"based":[35],"on":[36],"approximate":[37],"circuit":[38,60],"models":[39],"fairly":[41],"narrowband":[42],"antennas.":[44],"By":[45],"investigating":[46],"ratio":[48],"loss,":[53],"an":[54],"optimal":[55,72],"configuration":[56],"for":[57,102],"can":[61,67],"be":[62,68],"determined.":[63],"The":[64],"theoretical":[65],"results":[66,108],"used":[69],"to":[70],"provide":[71],"starting":[73],"values":[74],"design":[76,82,93],"curves":[77],"that":[78],"facilitate":[79],"final":[81],"with":[83,97],"a":[84,92],"full-wave":[85],"electromagnetic":[86],"simulator.":[87],"To":[88],"support":[89],"theory,":[91],"procedure":[94],"demonstrated":[96],"two":[98],"example":[99],"antenna":[100],"structures,":[101],"which":[103],"both":[104],"simulated":[105],"measured":[107],"presented.":[110]},"counts_by_year":[{"year":2015,"cited_by_count":1},{"year":2014,"cited_by_count":2},{"year":2013,"cited_by_count":2},{"year":2012,"cited_by_count":3}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}