{"id":"https://openalex.org/W4285219494","doi":"https://doi.org/10.1109/jssc.2022.3183174","title":"A 6.78-MHz Multiple-Transmitter Wireless Power Transfer System With Efficiency Maximization by Adaptive Magnetic Field Adder IC","display_name":"A 6.78-MHz Multiple-Transmitter Wireless Power Transfer System With Efficiency Maximization by Adaptive Magnetic Field Adder IC","publication_year":2022,"publication_date":"2022-06-23","ids":{"openalex":"https://openalex.org/W4285219494","doi":"https://doi.org/10.1109/jssc.2022.3183174"},"language":"en","primary_location":{"id":"doi:10.1109/jssc.2022.3183174","is_oa":false,"landing_page_url":"https://doi.org/10.1109/jssc.2022.3183174","pdf_url":null,"source":{"id":"https://openalex.org/S83637746","display_name":"IEEE Journal of Solid-State Circuits","issn_l":"0018-9200","issn":["0018-9200","1558-173X"],"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 Journal of Solid-State Circuits","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/A5036693137","display_name":"Hao Qiu","orcid":"https://orcid.org/0000-0002-3944-9740"},"institutions":[{"id":"https://openalex.org/I881766915","display_name":"Nanjing University","ror":"https://ror.org/01rxvg760","country_code":"CN","type":"education","lineage":["https://openalex.org/I881766915"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Hao Qiu","raw_affiliation_strings":["School of Electronic Science and Engineering, and the Engineering Research Center of Opto-Electro Materials and Chip Techniques, Nanjing University, Nanjing, China"],"raw_orcid":"https://orcid.org/0000-0002-3944-9740","affiliations":[{"raw_affiliation_string":"School of Electronic Science and Engineering, and the Engineering Research Center of Opto-Electro Materials and Chip Techniques, Nanjing University, Nanjing, China","institution_ids":["https://openalex.org/I881766915"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5112189116","display_name":"Takayasu Sakurai","orcid":null},"institutions":[{"id":"https://openalex.org/I74801974","display_name":"The University of Tokyo","ror":"https://ror.org/057zh3y96","country_code":"JP","type":"education","lineage":["https://openalex.org/I74801974"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Takayasu Sakurai","raw_affiliation_strings":["Institute of Industrial Science, The University of Tokyo, Tokyo, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Institute of Industrial Science, The University of Tokyo, Tokyo, Japan","institution_ids":["https://openalex.org/I74801974"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5003282110","display_name":"Makoto Takamiya","orcid":"https://orcid.org/0000-0003-0289-7790"},"institutions":[{"id":"https://openalex.org/I74801974","display_name":"The University of Tokyo","ror":"https://ror.org/057zh3y96","country_code":"JP","type":"education","lineage":["https://openalex.org/I74801974"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Makoto Takamiya","raw_affiliation_strings":["Institute of Industrial Science, The University of Tokyo, Tokyo, Japan"],"raw_orcid":"https://orcid.org/0000-0003-0289-7790","affiliations":[{"raw_affiliation_string":"Institute of Industrial Science, The University of Tokyo, Tokyo, Japan","institution_ids":["https://openalex.org/I74801974"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":1.6368,"has_fulltext":false,"cited_by_count":25,"citation_normalized_percentile":{"value":0.829739,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":99},"biblio":{"volume":"57","issue":"8","first_page":"2390","last_page":"2403"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11249","display_name":"Wireless Power Transfer Systems","score":1.0,"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/T11249","display_name":"Wireless Power Transfer Systems","score":1.0,"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/T11392","display_name":"Energy Harvesting in Wireless Networks","score":0.9998000264167786,"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/T10986","display_name":"RFID technology advancements","score":0.9815999865531921,"subfield":{"id":"https://openalex.org/subfields/2214","display_name":"Media Technology"},"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/wireless-power-transfer","display_name":"Wireless power transfer","score":0.7174246311187744},{"id":"https://openalex.org/keywords/electromagnetic-coil","display_name":"Electromagnetic coil","score":0.5718191266059875},{"id":"https://openalex.org/keywords/electrical-engineering","display_name":"Electrical engineering","score":0.4536757171154022},{"id":"https://openalex.org/keywords/adder","display_name":"Adder","score":0.4457840025424957},{"id":"https://openalex.org/keywords/duty-cycle","display_name":"Duty cycle","score":0.411832332611084},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.3746687173843384},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.3623059391975403},{"id":"https://openalex.org/keywords/topology","display_name":"Topology (electrical circuits)","score":0.3612527549266815},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.21099421381950378},{"id":"https://openalex.org/keywords/voltage","display_name":"Voltage","score":0.11776688694953918}],"concepts":[{"id":"https://openalex.org/C2779423816","wikidata":"https://www.wikidata.org/wiki/Q6856398","display_name":"Wireless power transfer","level":3,"score":0.7174246311187744},{"id":"https://openalex.org/C30403606","wikidata":"https://www.wikidata.org/wiki/Q2981904","display_name":"Electromagnetic coil","level":2,"score":0.5718191266059875},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.4536757171154022},{"id":"https://openalex.org/C164620267","wikidata":"https://www.wikidata.org/wiki/Q376953","display_name":"Adder","level":3,"score":0.4457840025424957},{"id":"https://openalex.org/C199822604","wikidata":"https://www.wikidata.org/wiki/Q557120","display_name":"Duty cycle","level":3,"score":0.411832332611084},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.3746687173843384},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.3623059391975403},{"id":"https://openalex.org/C184720557","wikidata":"https://www.wikidata.org/wiki/Q7825049","display_name":"Topology (electrical circuits)","level":2,"score":0.3612527549266815},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.21099421381950378},{"id":"https://openalex.org/C165801399","wikidata":"https://www.wikidata.org/wiki/Q25428","display_name":"Voltage","level":2,"score":0.11776688694953918},{"id":"https://openalex.org/C82876162","wikidata":"https://www.wikidata.org/wiki/Q17096504","display_name":"Latency (audio)","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/jssc.2022.3183174","is_oa":false,"landing_page_url":"https://doi.org/10.1109/jssc.2022.3183174","pdf_url":null,"source":{"id":"https://openalex.org/S83637746","display_name":"IEEE Journal of Solid-State Circuits","issn_l":"0018-9200","issn":["0018-9200","1558-173X"],"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 Journal of Solid-State Circuits","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/7","display_name":"Affordable and clean energy","score":0.8100000023841858}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":39,"referenced_works":["https://openalex.org/W1989566060","https://openalex.org/W2026827857","https://openalex.org/W2033729184","https://openalex.org/W2040305734","https://openalex.org/W2087535216","https://openalex.org/W2089471207","https://openalex.org/W2095079064","https://openalex.org/W2095812537","https://openalex.org/W2099304692","https://openalex.org/W2103357789","https://openalex.org/W2115964036","https://openalex.org/W2129900213","https://openalex.org/W2132378622","https://openalex.org/W2145519739","https://openalex.org/W2169624272","https://openalex.org/W2487974927","https://openalex.org/W2551832564","https://openalex.org/W2566623881","https://openalex.org/W2591000783","https://openalex.org/W2594538289","https://openalex.org/W2599723101","https://openalex.org/W2736077193","https://openalex.org/W2749313409","https://openalex.org/W2782686082","https://openalex.org/W2789705292","https://openalex.org/W2790112272","https://openalex.org/W2802987866","https://openalex.org/W2804640955","https://openalex.org/W2810077476","https://openalex.org/W2905926522","https://openalex.org/W2947682566","https://openalex.org/W2953692739","https://openalex.org/W2972543864","https://openalex.org/W2983432469","https://openalex.org/W3000141079","https://openalex.org/W3004971152","https://openalex.org/W3017182396","https://openalex.org/W3025643149","https://openalex.org/W3048517727"],"related_works":["https://openalex.org/W2966820092","https://openalex.org/W2905497009","https://openalex.org/W2766006468","https://openalex.org/W2552347513","https://openalex.org/W4312472697","https://openalex.org/W2598296671","https://openalex.org/W2026564313","https://openalex.org/W3165835672","https://openalex.org/W1519462296","https://openalex.org/W2134861801"],"abstract_inverted_index":{"A":[0,214],"6.78-MHz":[1],"multiple-transmitter":[2],"(TX)":[3],"wireless":[4],"power":[5,123,182,268],"transfer":[6],"(WPT)":[7],"system":[8,30,216],"was":[9,18,133,148,163,240,259,276,286,311],"presented.":[10],"An":[11],"adaptive":[12],"magnetic":[13],"field":[14],"adder":[15],"(AMFA)":[16],"IC":[17,162],"proposed,":[19],"for":[20],"the":[21,26,29,45,50,57,60,76,81,84,100,104,108,112,151,186,248,273,279,283,289],"first":[22],"time,":[23],"to":[24,92,263,278,288],"enable":[25],"maximization":[27],"of":[28,49,59,111,185,218,269,301],"efficiency":[31,184],"(":[32,63],"<inline-formula":[33,64,93,139,153,168,192,202,220,251,293],"xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"":[34,65,94,140,154,169,193,203,221,252,294],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">":[35,66,95,141,155,170,194,204,222,253,295],"<tex-math":[36,67,96,142,156,171,195,205,223,254,296],"notation=\"LaTeX\">$\\eta":[37,255,297],"_{\\mathrm":[38,256,298],"{SYS}}$":[39,257,299],"</tex-math></inline-formula>":[40,69,98,144,158,174,197,207,226,258,300],")":[41,70],"by":[42,165,231],"adaptively":[43],"optimizing":[44],"amplitude":[46],"and":[47,75,103,235],"phase":[48],"current":[51,85,113],"in":[52,86,114,150,308],"each":[53,72,87,115],"TX":[54,73,88,101,116,130,227,280,290],"coil":[55,74,89,102,131,228,239,275,285],"on":[56],"basis":[58],"coupling":[61],"coefficient":[62],"notation=\"LaTeX\">$k$":[68,97,143,157,196,206],"between":[71,99],"receiver":[77],"(RX)":[78],"coil.":[79,106],"Under":[80],"optimal":[82],"condition,":[83],"is":[90,304],"proportional":[91],"RX":[105,238,274,284],"For":[107],"independent":[109],"control":[110,147],"coil,":[117],"a":[118,137,166,209,219,236,266,292],"selectively":[119],"activated":[120],"shared-half-bridge":[121],"(HB)":[122],"amplifier":[124],"(PA)":[125],"together":[126],"with":[127,177,208,247,265],"an":[128],"alternate":[129],"array":[132,229],"proposed.":[134],"To":[135],"sense":[136],"small":[138],",":[145],"duty-ratio":[146],"proposed":[149,187],"integrated":[152],"sensor.":[159],"The":[160,180,191],"AMFA":[161,233],"fabricated":[164],"0.18-":[167],"notation=\"LaTeX\">$\\mu":[172],"\\text{m}$":[173],"CMOS":[175],"process":[176],"1.8-V":[178],"devices.":[179],"peak":[181],"conversion":[183],"PA":[188],"reached":[189],"74%.":[190],"sensor":[198],"could":[199],"accurately":[200],"measure":[201],"percentage":[210],"error":[211],"within":[212],"\u00b12.5%.":[213],"WPT":[215],"consisting":[217],"notation=\"LaTeX\">$4\\times":[224],"4$":[225],"driven":[230],"four":[232],"ICs":[234],"single":[237],"implemented.":[241],"Experimental":[242],"results":[243],"showed":[244],"that,":[245],"compared":[246],"conventional":[249],"system,":[250],"increased":[260],"from":[261],"0.11%":[262],"51%":[264],"load":[267],"576":[270],"mW":[271],"when":[272],"perpendicular":[277],"coils.":[281],"When":[282],"parallel":[287],"coils,":[291],"63%,":[302],"which":[303],"higher":[305],"than":[306],"those":[307],"previous":[309],"works,":[310],"also":[312],"achieved.":[313]},"counts_by_year":[{"year":2026,"cited_by_count":3},{"year":2025,"cited_by_count":5},{"year":2024,"cited_by_count":7},{"year":2023,"cited_by_count":9},{"year":2022,"cited_by_count":1}],"updated_date":"2026-07-15T18:14:33.161393","created_date":"2025-10-10T00:00:00"}