{"id":"https://openalex.org/W3205376610","doi":"https://doi.org/10.1109/tps.2021.3116615","title":"Design and RF Characterization of High-Power Ferrule-Loaded Folded Waveguide SWS for mm-Wave TWT","display_name":"Design and RF Characterization of High-Power Ferrule-Loaded Folded Waveguide SWS for mm-Wave TWT","publication_year":2021,"publication_date":"2021-10-10","ids":{"openalex":"https://openalex.org/W3205376610","doi":"https://doi.org/10.1109/tps.2021.3116615","mag":"3205376610"},"language":"en","primary_location":{"id":"doi:10.1109/tps.2021.3116615","doi":"https://doi.org/10.1109/tps.2021.3116615","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tps.2021.3116615","pdf_url":null,"source":{"id":"https://openalex.org/S164692974","display_name":"IEEE Transactions on Plasma Science","issn_l":"0093-3813","issn":["0093-3813","1939-9375"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-c","jufo-1","norway-1","poland-70","russia-white-list-3"],"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 Plasma Science","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"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/A5103194382","display_name":"Murugan Sumathy","orcid":"https://orcid.org/0000-0002-2866-8921","observed_orcids":["https://orcid.org/0000-0002-2866-8921"]},"institutions":[{"id":"https://openalex.org/I4210119409","display_name":"Microwave Tube Research & Development Centre","ror":"https://ror.org/02tbgn381","country_code":"IN","type":"facility","lineage":["https://openalex.org/I1340206300","https://openalex.org/I2799351866","https://openalex.org/I4210119409","https://openalex.org/I4210150591"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"M. Sumathy","raw_affiliation_strings":["Microwave Tube Research and Development Centre, Bengaluru, India"],"raw_orcid":"https://orcid.org/0000-0002-2866-8921","affiliations":[{"raw_affiliation_string":"Microwave Tube Research and Development Centre, Bengaluru, India","institution_ids":["https://openalex.org/I4210119409"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5111537237","display_name":"Yenamandra Venkateswarlu","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4210119409","display_name":"Microwave Tube Research & Development Centre","ror":"https://ror.org/02tbgn381","country_code":"IN","type":"facility","lineage":["https://openalex.org/I1340206300","https://openalex.org/I2799351866","https://openalex.org/I4210119409","https://openalex.org/I4210150591"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Y. Venkateswarlu","raw_affiliation_strings":["Microwave Tube Research and Development Centre, Bengaluru, India"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Microwave Tube Research and Development Centre, Bengaluru, India","institution_ids":["https://openalex.org/I4210119409"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5005961434","display_name":"B. Bharat Kumar","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4210119409","display_name":"Microwave Tube Research & Development Centre","ror":"https://ror.org/02tbgn381","country_code":"IN","type":"facility","lineage":["https://openalex.org/I1340206300","https://openalex.org/I2799351866","https://openalex.org/I4210119409","https://openalex.org/I4210150591"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"B. Bharat Kumar","raw_affiliation_strings":["Microwave Tube Research and Development Centre, Bengaluru, India"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Microwave Tube Research and Development Centre, Bengaluru, India","institution_ids":["https://openalex.org/I4210119409"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101498334","display_name":"Sanjay Kumar Gupta","orcid":"https://orcid.org/0000-0003-0091-0971","observed_orcids":["https://orcid.org/0000-0003-0091-0971"]},"institutions":[{"id":"https://openalex.org/I4210119409","display_name":"Microwave Tube Research & Development Centre","ror":"https://ror.org/02tbgn381","country_code":"IN","type":"facility","lineage":["https://openalex.org/I1340206300","https://openalex.org/I2799351866","https://openalex.org/I4210119409","https://openalex.org/I4210150591"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Sanjay Kumar Gupta","raw_affiliation_strings":["Microwave Tube Research and Development Centre, Bengaluru, India"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Microwave Tube Research and Development Centre, Bengaluru, India","institution_ids":["https://openalex.org/I4210119409"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5110455203","display_name":"Mrityunjay Santra","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4210119409","display_name":"Microwave Tube Research & Development Centre","ror":"https://ror.org/02tbgn381","country_code":"IN","type":"facility","lineage":["https://openalex.org/I1340206300","https://openalex.org/I2799351866","https://openalex.org/I4210119409","https://openalex.org/I4210150591"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Mrityunjay Santra","raw_affiliation_strings":["Microwave Tube Research and Development Centre, Bengaluru, India"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Microwave Tube Research and Development Centre, Bengaluru, India","institution_ids":["https://openalex.org/I4210119409"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5062002742","display_name":"Subrata Kumar Datta","orcid":"https://orcid.org/0000-0001-6618-7232","observed_orcids":["https://orcid.org/0000-0001-6618-7232"]},"institutions":[{"id":"https://openalex.org/I4210119409","display_name":"Microwave Tube Research & Development Centre","ror":"https://ror.org/02tbgn381","country_code":"IN","type":"facility","lineage":["https://openalex.org/I1340206300","https://openalex.org/I2799351866","https://openalex.org/I4210119409","https://openalex.org/I4210150591"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"S. K. Datta","raw_affiliation_strings":["Microwave Tube Research and Development Centre, Bengaluru, India"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Microwave Tube Research and Development Centre, Bengaluru, India","institution_ids":["https://openalex.org/I4210119409"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5113681920","display_name":"S. U. M. Reddy","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I4210119409","display_name":"Microwave Tube Research & Development Centre","ror":"https://ror.org/02tbgn381","country_code":"IN","type":"facility","lineage":["https://openalex.org/I1340206300","https://openalex.org/I2799351866","https://openalex.org/I4210119409","https://openalex.org/I4210150591"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"S. Umamaheswara Reddy","raw_affiliation_strings":["Microwave Tube Research and Development Centre, Bengaluru, India"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Microwave Tube Research and Development Centre, Bengaluru, India","institution_ids":["https://openalex.org/I4210119409"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I4210119409"],"apc_list":{"value":2045,"currency":"USD","value_usd":2045},"apc_paid":null,"fwci":0.5222,"has_fulltext":false,"cited_by_count":9,"citation_normalized_percentile":{"value":0.53242162,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":96},"biblio":{"volume":"49","issue":"11","first_page":"3487","last_page":"3493"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11175","display_name":"Gyrotron and Vacuum Electronics Research","score":0.9911999702453613,"subfield":{"id":"https://openalex.org/subfields/3107","display_name":"Atomic and Molecular Physics, and Optics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T11175","display_name":"Gyrotron and Vacuum Electronics Research","score":0.9911999702453613,"subfield":{"id":"https://openalex.org/subfields/3107","display_name":"Atomic and Molecular Physics, and Optics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11367","display_name":"Particle accelerators and beam dynamics","score":0.003100000089034438,"subfield":{"id":"https://openalex.org/subfields/3106","display_name":"Nuclear and High Energy Physics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10262","display_name":"Microwave Engineering and Waveguides","score":0.0008999999845400453,"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/slow-wave-structure","display_name":"slow-wave structure","score":0.9729999899864197},{"id":"https://openalex.org/keywords/traveling-wave-tubes","display_name":"traveling-wave tubes","score":0.9480000138282776},{"id":"https://openalex.org/keywords/millimeter-wave","display_name":"millimeter wave","score":0.5899999737739563},{"id":"https://openalex.org/keywords/ka-band","display_name":"Ka-band","score":0.9139999747276306},{"id":"https://openalex.org/keywords/interaction-impedance","display_name":"interaction impedance","score":0.8009999990463257},{"id":"https://openalex.org/keywords/high-power-microwave","display_name":"high-power microwave","score":0.5410000085830688},{"id":"https://openalex.org/keywords/cold-test","display_name":"cold test","score":0.3720000088214874},{"id":"https://openalex.org/keywords/particle-in-cell-simulation","display_name":"particle-in-cell simulation","score":0.8349999785423279},{"id":"https://openalex.org/keywords/interaction-length","display_name":"interaction length","score":0.8659999966621399}],"concepts":[{"id":"https://openalex.org/C2776351503","wikidata":"https://www.wikidata.org/wiki/Q454039","display_name":"Ferrule","level":3,"score":0.9050211906433105},{"id":"https://openalex.org/C142803427","wikidata":"https://www.wikidata.org/wiki/Q1164091","display_name":"Traveling-wave tube","level":4,"score":0.6951992511749268},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.6936719417572021},{"id":"https://openalex.org/C2776257435","wikidata":"https://www.wikidata.org/wiki/Q1576430","display_name":"Bandwidth (computing)","level":2,"score":0.5990749597549438},{"id":"https://openalex.org/C45764600","wikidata":"https://www.wikidata.org/wiki/Q570342","display_name":"Extremely high frequency","level":2,"score":0.5884302854537964},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.5201566815376282},{"id":"https://openalex.org/C200687136","wikidata":"https://www.wikidata.org/wiki/Q11233438","display_name":"Waveguide","level":2,"score":0.4999098777770996},{"id":"https://openalex.org/C17829176","wikidata":"https://www.wikidata.org/wiki/Q179043","display_name":"Electrical impedance","level":2,"score":0.4790688455104828},{"id":"https://openalex.org/C90327742","wikidata":"https://www.wikidata.org/wiki/Q947396","display_name":"Insertion loss","level":2,"score":0.4113812744617462},{"id":"https://openalex.org/C49040817","wikidata":"https://www.wikidata.org/wiki/Q193091","display_name":"Optoelectronics","level":1,"score":0.3455776870250702},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.2085997760295868},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.20328956842422485},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.09993809461593628},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.09985697269439697},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.09884154796600342},{"id":"https://openalex.org/C194232370","wikidata":"https://www.wikidata.org/wiki/Q162","display_name":"Optical fiber","level":2,"score":0.08739954233169556},{"id":"https://openalex.org/C194257627","wikidata":"https://www.wikidata.org/wiki/Q211554","display_name":"Amplifier","level":3,"score":0.0},{"id":"https://openalex.org/C46362747","wikidata":"https://www.wikidata.org/wiki/Q173431","display_name":"CMOS","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tps.2021.3116615","doi":"https://doi.org/10.1109/tps.2021.3116615","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tps.2021.3116615","pdf_url":null,"source":{"id":"https://openalex.org/S164692974","display_name":"IEEE Transactions on Plasma Science","issn_l":"0093-3813","issn":["0093-3813","1939-9375"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-c","jufo-1","norway-1","poland-70","russia-white-list-3"],"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 Plasma Science","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":14,"referenced_works":["https://openalex.org/W1909338041","https://openalex.org/W1968235884","https://openalex.org/W2000355711","https://openalex.org/W2004379149","https://openalex.org/W2008219729","https://openalex.org/W2092758573","https://openalex.org/W2096140220","https://openalex.org/W2100114711","https://openalex.org/W2101085187","https://openalex.org/W2114927406","https://openalex.org/W2130183913","https://openalex.org/W2477774028","https://openalex.org/W2565192042","https://openalex.org/W3083289309"],"related_works":["https://openalex.org/W4382204091","https://openalex.org/W2100114711","https://openalex.org/W3009435340","https://openalex.org/W2006746548","https://openalex.org/W2810391847","https://openalex.org/W2068785133","https://openalex.org/W2357488195","https://openalex.org/W2130204727","https://openalex.org/W2152362736","https://openalex.org/W2898747134"],"abstract_inverted_index":{"Design":[0],"and":[1,37,42,54,85,133,144,161],"analysis":[2],"of":[3,22,66,99,115,184],"ferrule-loaded":[4,68,101,172],"folded":[5,69,74,102],"waveguide":[6,70,75,103],"slow":[7],"wave":[8],"structure":[9,24,33,76,104,111],"is":[10,25,46,77,105,124,157,166],"carried":[11,26,47,126],"out":[12,27,48,127],"for":[13,49,80,135,139,170,179],"a":[14,72],"high-power":[15],"millimeter-wave":[16],"traveling-wave":[17],"tube":[18],"(TWT).":[19],"The":[20,91,149],"design":[21],"the":[23,40,50,55,64,67,81,96,100,109,113,130,137,140,145,154,162,171,176,180],"by":[28,159,168],"numerical":[29,60],"simulation.":[30],"A":[31],"typical":[32],"has":[34],"been":[35],"designed":[36,79],"fabricated":[38],"at":[39,112],"Ka-band,":[41],"cold":[43,51,86,118],"test":[44],"measurement":[45],"circuit":[52,87],"parameters":[53,88],"results":[56,93,146,151],"are":[57,89,147],"compared":[58,107,174],"against":[59],"analysis.":[61],"To":[62],"compare":[63],"efficacy":[65],"structure,":[71],"conventional":[73,110,177],"also":[78,125],"same":[82,141,181],"operating":[83,142],"bandwidth,":[84],"compared.":[90,148],"comparison":[92,150],"shows":[94],"that":[95,153],"interaction":[97,164],"impedance":[98],"double":[106],"with":[108,175],"cost":[114],"reduction":[116],"in":[117],"bandwidth.":[119],"Furthermore,":[120],"particle-in-cell":[121],"(PIC)":[122],"simulation":[123],"to":[128],"estimate":[129],"output":[131,182],"power":[132,183],"gain":[134],"both":[136],"structures":[138],"band,":[143],"show":[152],"cross":[155],"section":[156],"reduced":[158,167],"22%":[160],"overall":[163],"length":[165],"50%":[169],"FW-SWS":[173,178],"about":[185],"500":[186],"W.":[187]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":2},{"year":2024,"cited_by_count":2},{"year":2023,"cited_by_count":2},{"year":2022,"cited_by_count":1}],"updated_date":"2026-10-16T09:59:22.235173","created_date":"2021-10-25T00:00:00"}