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Heavily-loaded wideband helix traveling wave tube

The negative dispersion in a wideband helix TWT is operative for ensuring a successful operation with lower second harmonic at the lowest frequency and higher power at the highest frequency. In the previous work, we studied a wideband TWT experimentally with a relatively simple SWS which uses rectan...

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Main Authors:	Young-Do Joo, Sun-Shin Jung, Baofu Jia, Sinha, A.K., Gun-Sik Park
Format:	Conference Proceeding
Language:	English
Subjects:	Blades Boundary conditions Ceramics Impedance Mesh generation Performance analysis Power system harmonics Radio frequency Structural rods Wideband
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creator	Young-Do Joo Sun-Shin Jung Baofu Jia Sinha, A.K. Gun-Sik Park
description	The negative dispersion in a wideband helix TWT is operative for ensuring a successful operation with lower second harmonic at the lowest frequency and higher power at the highest frequency. In the previous work, we studied a wideband TWT experimentally with a relatively simple SWS which uses rectangular BeO rods without the metal vanes. The angular thickness of the rectangular supports is made larger than their radial thickness, which makes this structure somewhat 'heavily loaded'. In this study, unequal rectangular ceramic rods were employed to enhance the second harmonic level at the lower frequencies and efficiency at the higher frequencies. The dispersion and the interaction impedance of the structure were predicted by a 3-D HFSS code. The hot simulations carried out using a 1-D nonlinear code.
doi_str_mv	10.1109/ICMMT.2002.1187646
format	conference_proceeding
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The hot simulations carried out using a 1-D nonlinear code.</description><subject>Blades</subject><subject>Boundary conditions</subject><subject>Ceramics</subject><subject>Impedance</subject><subject>Mesh generation</subject><subject>Performance analysis</subject><subject>Power system harmonics</subject><subject>Radio frequency</subject><subject>Structural rods</subject><subject>Wideband</subject><isbn>9780780374867</isbn><isbn>078037486X</isbn><fulltext>true</fulltext><rsrctype>conference_proceeding</rsrctype><creationdate>2002</creationdate><recordtype>conference_proceeding</recordtype><sourceid>6IE</sourceid><recordid>eNotj0FLAzEUhAMiKHX_gL3kD2x9L9nkJUdZ1BZavNRzyW5eamStsru29t-7YIeB-eYyMELcIywQwT-s6s1mu1AAauqObGWvROHJwWRNlbN0I4ph-IBJ2huDdCtwyeGYu3PZfYXIUZ5y5CYconznLv_KsQ_HCQ57eZpAjj8N34nrFLqBi0vOxNvz07ZeluvXl1X9uC4zkhlL5IrQg6W2NdRobk1y0RMbj1UiQDDKsQsQDJOL7EwICZyKCp23ukl6Jub_u5mZd999_gz9eXc5pv8A7mFCzg</recordid><startdate>2002</startdate><enddate>2002</enddate><creator>Young-Do Joo</creator><creator>Sun-Shin Jung</creator><creator>Baofu Jia</creator><creator>Sinha, A.K.</creator><creator>Gun-Sik Park</creator><general>IEEE</general><scope>6IE</scope><scope>6IL</scope><scope>CBEJK</scope><scope>RIE</scope><scope>RIL</scope></search><sort><creationdate>2002</creationdate><title>Heavily-loaded wideband helix traveling wave tube</title><author>Young-Do Joo ; Sun-Shin Jung ; Baofu Jia ; Sinha, A.K. ; Gun-Sik Park</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-i175t-1e4719067cc57b3ec5f8d97e5914f7010528e8a0a5e78de85aaf082d218963bf3</frbrgroupid><rsrctype>conference_proceedings</rsrctype><prefilter>conference_proceedings</prefilter><language>eng</language><creationdate>2002</creationdate><topic>Blades</topic><topic>Boundary conditions</topic><topic>Ceramics</topic><topic>Impedance</topic><topic>Mesh generation</topic><topic>Performance analysis</topic><topic>Power system harmonics</topic><topic>Radio frequency</topic><topic>Structural rods</topic><topic>Wideband</topic><toplevel>online_resources</toplevel><creatorcontrib>Young-Do Joo</creatorcontrib><creatorcontrib>Sun-Shin Jung</creatorcontrib><creatorcontrib>Baofu Jia</creatorcontrib><creatorcontrib>Sinha, A.K.</creatorcontrib><creatorcontrib>Gun-Sik Park</creatorcontrib><collection>IEEE Electronic Library (IEL) Conference Proceedings</collection><collection>IEEE Proceedings Order Plan All Online (POP All Online) 1998-present by volume</collection><collection>IEEE Xplore All Conference Proceedings</collection><collection>IEEE</collection><collection>IEEE Proceedings Order Plans (POP All) 1998-Present</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Young-Do Joo</au><au>Sun-Shin Jung</au><au>Baofu Jia</au><au>Sinha, A.K.</au><au>Gun-Sik Park</au><format>book</format><genre>proceeding</genre><ristype>CONF</ristype><atitle>Heavily-loaded wideband helix traveling wave tube</atitle><btitle>2002 3rd International Conference on Microwave and Millimeter Wave Technology, 2002. 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identifier	ISBN: 9780780374867
ispartof	2002 3rd International Conference on Microwave and Millimeter Wave Technology, 2002. Proceedings. ICMMT 2002, 2002, p.106-109
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language	eng
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subjects	Blades Boundary conditions Ceramics Impedance Mesh generation Performance analysis Power system harmonics Radio frequency Structural rods Wideband
title	Heavily-loaded wideband helix traveling wave tube
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