{"id":"https://openalex.org/W2749029697","doi":"https://doi.org/10.1109/ted.2017.2736065","title":"Investigation of Instabilities in a Folded-Waveguide Sheet-Beam TWT","display_name":"Investigation of Instabilities in a Folded-Waveguide Sheet-Beam TWT","publication_year":2017,"publication_date":"2017-08-14","ids":{"openalex":"https://openalex.org/W2749029697","doi":"https://doi.org/10.1109/ted.2017.2736065","mag":"2749029697"},"language":"en","primary_location":{"id":"doi:10.1109/ted.2017.2736065","doi":"https://doi.org/10.1109/ted.2017.2736065","is_oa":false,"landing_page_url":"https://doi.org/10.1109/ted.2017.2736065","pdf_url":null,"source":{"id":"https://openalex.org/S162355128","display_name":"IEEE Transactions on Electron Devices","issn_l":"0018-9383","issn":["0018-9383","1557-9646"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-b","jufo-3","norway-2","poland-100","russia-white-list-1"],"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 Electron Devices","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/A5011109639","display_name":"H. S. Sudhamani","orcid":"https://orcid.org/0000-0002-7960-619X","observed_orcids":["https://orcid.org/0000-0002-7960-619X"]},"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":"H. S. Sudhamani","raw_affiliation_strings":["Microwave Tube Research and Development Centre, Bangalore, India"],"raw_orcid":"https://orcid.org/0000-0002-7960-619X","affiliations":[{"raw_affiliation_string":"Microwave Tube Research and Development Centre, Bangalore, India","institution_ids":["https://openalex.org/I4210119409"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5037293997","display_name":"Jyothi Balakrishnan","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I53465836","display_name":"Bangalore University","ror":"https://ror.org/050j2vm64","country_code":"IN","type":"education","lineage":["https://openalex.org/I53465836"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Jyothi Balakrishnan","raw_affiliation_strings":["Bangalore University, Bangalore, India"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Bangalore University, Bangalore, India","institution_ids":["https://openalex.org/I53465836"]}]},{"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. U. M. Reddy","raw_affiliation_strings":["Microwave Tube Research and Development Centre, Bangalore, India"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Microwave Tube Research and Development Centre, Bangalore, India","institution_ids":["https://openalex.org/I4210119409"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":2645,"currency":"USD","value_usd":2645},"apc_paid":null,"fwci":0.6449,"has_fulltext":false,"cited_by_count":27,"citation_normalized_percentile":{"value":0.62020605,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":98},"biblio":{"volume":"64","issue":"10","first_page":"4266","last_page":"4271"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11175","display_name":"Gyrotron and Vacuum Electronics Research","score":0.9965999722480774,"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":0.9965999722480774,"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":0.0015999999595806003,"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/T10559","display_name":"Particle Accelerators and Free-Electron Lasers","score":0.0005000000237487257,"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/folded-waveguide-traveling-wave-tube","display_name":"folded waveguide traveling-wave tube","score":0.8510000109672546},{"id":"https://openalex.org/keywords/instability","display_name":"instability","score":0.3959999978542328},{"id":"https://openalex.org/keywords/brillouin-diagram","display_name":"Brillouin diagram","score":0.8920000195503235},{"id":"https://openalex.org/keywords/slow-wave-structure","display_name":"slow-wave structure","score":0.6589999794960022},{"id":"https://openalex.org/keywords/interaction-impedance","display_name":"interaction impedance","score":0.5730000138282776},{"id":"https://openalex.org/keywords/dispersion-characteristics","display_name":"dispersion characteristics","score":0.902999997138977},{"id":"https://openalex.org/keywords/ku-band","display_name":"Ku-band","score":0.8629999756813049},{"id":"https://openalex.org/keywords/220-ghz","display_name":"220 GHz","score":0.7720000147819519},{"id":"https://openalex.org/keywords/parametric-design","display_name":"parametric design","score":0.7620000243186951}],"concepts":[{"id":"https://openalex.org/C142803427","wikidata":"https://www.wikidata.org/wiki/Q1164091","display_name":"Traveling-wave tube","level":4,"score":0.6918731927871704},{"id":"https://openalex.org/C168834538","wikidata":"https://www.wikidata.org/wiki/Q3705329","display_name":"Beam (structure)","level":2,"score":0.6731253862380981},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.6138226389884949},{"id":"https://openalex.org/C200687136","wikidata":"https://www.wikidata.org/wiki/Q11233438","display_name":"Waveguide","level":2,"score":0.5929108262062073},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.5845352411270142},{"id":"https://openalex.org/C207821765","wikidata":"https://www.wikidata.org/wiki/Q405372","display_name":"Instability","level":2,"score":0.531679093837738},{"id":"https://openalex.org/C177562468","wikidata":"https://www.wikidata.org/wiki/Q182893","display_name":"Dispersion (optics)","level":2,"score":0.5027964115142822},{"id":"https://openalex.org/C17829176","wikidata":"https://www.wikidata.org/wiki/Q179043","display_name":"Electrical impedance","level":2,"score":0.49935436248779297},{"id":"https://openalex.org/C33441834","wikidata":"https://www.wikidata.org/wiki/Q693004","display_name":"Transmission line","level":2,"score":0.4961143434047699},{"id":"https://openalex.org/C31190367","wikidata":"https://www.wikidata.org/wiki/Q3739927","display_name":"Particle beam","level":3,"score":0.44039028882980347},{"id":"https://openalex.org/C117251300","wikidata":"https://www.wikidata.org/wiki/Q1849855","display_name":"Parametric statistics","level":2,"score":0.4380723237991333},{"id":"https://openalex.org/C16291881","wikidata":"https://www.wikidata.org/wiki/Q917246","display_name":"Brillouin zone","level":2,"score":0.4144863486289978},{"id":"https://openalex.org/C57879066","wikidata":"https://www.wikidata.org/wiki/Q41217","display_name":"Mechanics","level":1,"score":0.33804404735565186},{"id":"https://openalex.org/C30475298","wikidata":"https://www.wikidata.org/wiki/Q909554","display_name":"Computational physics","level":1,"score":0.33274540305137634},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.18608930706977844},{"id":"https://openalex.org/C194257627","wikidata":"https://www.wikidata.org/wiki/Q211554","display_name":"Amplifier","level":3,"score":0.16590827703475952},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.1331753432750702},{"id":"https://openalex.org/C49040817","wikidata":"https://www.wikidata.org/wiki/Q193091","display_name":"Optoelectronics","level":1,"score":0.11740320920944214},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.07995033264160156},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.0},{"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/C46362747","wikidata":"https://www.wikidata.org/wiki/Q173431","display_name":"CMOS","level":2,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/ted.2017.2736065","doi":"https://doi.org/10.1109/ted.2017.2736065","is_oa":false,"landing_page_url":"https://doi.org/10.1109/ted.2017.2736065","pdf_url":null,"source":{"id":"https://openalex.org/S162355128","display_name":"IEEE Transactions on Electron Devices","issn_l":"0018-9383","issn":["0018-9383","1557-9646"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["cwts-core","dongbi-b","jufo-3","norway-2","poland-100","russia-white-list-1"],"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 Electron Devices","raw_type":"journal-article"},{"id":"pmh:oai:eprints-bangaloreuniversity.in:7902","doi":null,"is_oa":false,"landing_page_url":"http://eprints-bangaloreuniversity.in/7902/1/10.1109%40TED.2017.2736065.pdf","pdf_url":"http://eprints-bangaloreuniversity.in/7902/1/10.1109%40TED.2017.2736065.pdf","source":{"id":"https://openalex.org/S4306401173","display_name":"ePrints@Bangalore University (Bangalore University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/I53465836","host_organization_name":"Bangalore University","host_organization_lineage":["https://openalex.org/I53465836"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Article"}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[{"id":"https://openalex.org/F4320321024","display_name":"Defence Research and Development Organisation","ror":"https://ror.org/05k37v296"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":18,"referenced_works":["https://openalex.org/W1529260899","https://openalex.org/W1540469282","https://openalex.org/W1996084351","https://openalex.org/W2004379149","https://openalex.org/W2011280532","https://openalex.org/W2034752650","https://openalex.org/W2083275923","https://openalex.org/W2084878326","https://openalex.org/W2091607923","https://openalex.org/W2110929010","https://openalex.org/W2118903870","https://openalex.org/W2148114668","https://openalex.org/W2166786691","https://openalex.org/W2168512453","https://openalex.org/W2613709271","https://openalex.org/W3145768949","https://openalex.org/W4242994732","https://openalex.org/W4298358983"],"related_works":["https://openalex.org/W3193455194","https://openalex.org/W2786055302","https://openalex.org/W2811422084","https://openalex.org/W3196641568","https://openalex.org/W2119443395","https://openalex.org/W2016447752","https://openalex.org/W2509447623","https://openalex.org/W2157118245","https://openalex.org/W2068785133","https://openalex.org/W2084878326"],"abstract_inverted_index":{"Particle-in-cell":[0],"(PIC)":[1],"simulation":[2],"was":[3,30,99],"used":[4,31],"for":[5,32],"analyzing":[6],"the":[7,26,33,37,55,69,74,84,90,110],"instabilities":[8],"due":[9],"to":[10,54,101,106,109],"zero-drive":[11],"oscillations":[12,78],"in":[13,73,80],"a":[14,65,103],"220-GHz":[15],"folded-waveguide":[16],"(FW)":[17],"traveling-wave":[18],"tube.":[19],"The":[20,77,93],"equivalent":[21],"circuit":[22],"analysis":[23],"based":[24],"on":[25,64],"transmission":[27],"line":[28],"approach":[29],"parametric":[34],"design":[35],"of":[36,68,83],"FW":[38],"structures":[39],"(FWSs)":[40],"with":[41,52,95],"circular":[42],"and":[43,46,57],"rectangular":[44],"(horizontal":[45],"vertical)":[47],"beam":[48,97],"holes.":[49],"Experimental":[50],"validations":[51],"reference":[53],"dispersion":[56],"interaction":[58],"impedance":[59],"characteristics":[60],"were":[61,86],"carried":[62],"out":[63],"scaled":[66],"model":[67],"slow":[70],"wave":[71],"structure":[72],"Ku":[75],"band.":[76],"observed":[79],"various":[81],"configurations":[82],"FWS":[85,94],"subsequently":[87],"analyzed":[88],"using":[89],"Brillouin":[91],"diagram.":[92],"horizontal-rectangular":[96],"hole":[98],"found":[100],"have":[102],"better":[104],"immunity":[105],"instability":[107],"compared":[108],"other":[111],"two":[112],"configurations.":[113]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":2},{"year":2024,"cited_by_count":5},{"year":2023,"cited_by_count":4},{"year":2022,"cited_by_count":5},{"year":2021,"cited_by_count":4},{"year":2020,"cited_by_count":2},{"year":2019,"cited_by_count":2},{"year":2018,"cited_by_count":1}],"updated_date":"2026-09-29T14:09:16.559479","created_date":"2017-08-31T00:00:00"}