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Third IEEE International Vacuum Electronics Conference (IEEE Cat. No.02EX524)最新文献

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TWT and BWT on mode H/sub 11/ in goffered waveguide 在H/sub / in模式下的行波管和BWT
Third IEEE International Vacuum Electronics Conference (IEEE Cat. No.02EX524) Pub Date : 2002-08-07 DOI: 10.1109/IVELEC.2002.999308
S. Kolosov
{"title":"TWT and BWT on mode H/sub 11/ in goffered waveguide","authors":"S. Kolosov","doi":"10.1109/IVELEC.2002.999308","DOIUrl":"https://doi.org/10.1109/IVELEC.2002.999308","url":null,"abstract":"The research of optimum constructions of traveling wave tube (TWT) and backward wave tube (BWT) with a rectilinear cylindrical electron flow in goffered waveguide on the basic wave mode H/sub 11/ of circular waveguide is carried out.","PeriodicalId":344852,"journal":{"name":"Third IEEE International Vacuum Electronics Conference (IEEE Cat. No.02EX524)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131659993","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Quasi-stationary states of relativistic field-emission-limited diodes 相对论场发射受限二极管的准定态
Third IEEE International Vacuum Electronics Conference (IEEE Cat. No.02EX524) Pub Date : 2002-08-07 DOI: 10.1109/IVELEC.2002.999287
Ming-Chieh Lin, D. Chuu
{"title":"Quasi-stationary states of relativistic field-emission-limited diodes","authors":"Ming-Chieh Lin, D. Chuu","doi":"10.1109/IVELEC.2002.999287","DOIUrl":"https://doi.org/10.1109/IVELEC.2002.999287","url":null,"abstract":"Summary form only given. A relativistic field-emission-limited diode employing a high-transparency mesh anode is investigated via a self-consistent approach. The field emission process is described quantum-mechanically by the Fowler-Nordheim equation. The cathode plasma and surface properties are considered within the framework of the effective work function approximation. Space charge effects are described by Poisson's equation including relativistic effects. Ionization effects at the high-transparency mesh anode are ignored. The numerical calculations are carried out on a time scale much shorter than the emergence of the gap closure. The quasi-stationary state of the diode exhibits a cut-off voltage. The electric field on the cathode surface is found to be saturated in the high voltage regime and determined by the effective work function only.","PeriodicalId":344852,"journal":{"name":"Third IEEE International Vacuum Electronics Conference (IEEE Cat. No.02EX524)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125411752","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Pillbox-type windows transmitting power in the TM/sub 01/-mode of the circular waveguide 圆波导的TM/sub / 01/-模式下的pillbox型窗口发射功率
Third IEEE International Vacuum Electronics Conference (IEEE Cat. No.02EX524) Pub Date : 2002-08-07 DOI: 10.1109/IVELEC.2002.999349
B. Prokofiev
{"title":"Pillbox-type windows transmitting power in the TM/sub 01/-mode of the circular waveguide","authors":"B. Prokofiev","doi":"10.1109/IVELEC.2002.999349","DOIUrl":"https://doi.org/10.1109/IVELEC.2002.999349","url":null,"abstract":"The windows having power transmission in the TM/sub 01/-mode are known to be noncritical to the technological dispersion of the dielectric permittivity of the ceramic barrier. The origin of this property, which has not attracted attention of the researchers, is a reduced electric field in dielectric. Thus, it becomes possible to decrease the losses inside the ceramic and to increase the power capacity of the waveguide windows.","PeriodicalId":344852,"journal":{"name":"Third IEEE International Vacuum Electronics Conference (IEEE Cat. No.02EX524)","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122982002","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Electron-optical systems for O-type devices of millimeter wavelength range 毫米波长的o型器件的电子光学系统
Third IEEE International Vacuum Electronics Conference (IEEE Cat. No.02EX524) Pub Date : 2002-08-07 DOI: 10.1109/IVELEC.2002.999320
I. Lopatin, A. Tishchenko
{"title":"Electron-optical systems for O-type devices of millimeter wavelength range","authors":"I. Lopatin, A. Tishchenko","doi":"10.1109/IVELEC.2002.999320","DOIUrl":"https://doi.org/10.1109/IVELEC.2002.999320","url":null,"abstract":"We will discuss the results of development, study and use of electron-optical systems (EOS), that form plane and axially-symmetrical beams with the cross dimensions of 0.05 to 0.2 mm and current density up to 100 A/cm/sup 2/, and are applied in backward wave tubes (BWT), traveling wave tubes (TWT) and orotrons of mm- and submm-wave ranges. The specificity of this study is the predominating and sometimes decisive part of the design and technological solutions in the implementation of physical and technical concepts that served as a basis by developing these devices and EOS.","PeriodicalId":344852,"journal":{"name":"Third IEEE International Vacuum Electronics Conference (IEEE Cat. No.02EX524)","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114235560","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Relativistic magnetron experiments and novel theory on the limiting current in a relativistic, magnetically-insulated diode 相对论磁控管实验及相对论磁绝缘二极管中极限电流的新理论
Third IEEE International Vacuum Electronics Conference (IEEE Cat. No.02EX524) Pub Date : 2002-08-07 DOI: 10.1109/IVELEC.2002.999244
M.R. Lopez, R. Gilgenbach, Y. Lau, D. Jordan, S. Anderson, M. Johnston, M. Keyser, H. Miyake, C. W. Peters, M.C. Jones, V. Bogdan Neculaes, T. Spencer, J. Luginsland, M. Haworth, R. Lemke, D. Price
{"title":"Relativistic magnetron experiments and novel theory on the limiting current in a relativistic, magnetically-insulated diode","authors":"M.R. Lopez, R. Gilgenbach, Y. Lau, D. Jordan, S. Anderson, M. Johnston, M. Keyser, H. Miyake, C. W. Peters, M.C. Jones, V. Bogdan Neculaes, T. Spencer, J. Luginsland, M. Haworth, R. Lemke, D. Price","doi":"10.1109/IVELEC.2002.999244","DOIUrl":"https://doi.org/10.1109/IVELEC.2002.999244","url":null,"abstract":"This paper is a progress report on the relativistic magnetron experiment. It also presents, for the first time, the maximum emission current density for time-independent, relativistic, cycloidal electron flows in a magnetically insulated diode.","PeriodicalId":344852,"journal":{"name":"Third IEEE International Vacuum Electronics Conference (IEEE Cat. No.02EX524)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116623516","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Design of a 50 MW 30 GHz gyroklystron amplifier for accelerator applications 用于加速器应用的50mw 30ghz回旋速调管放大器的设计
Third IEEE International Vacuum Electronics Conference (IEEE Cat. No.02EX524) Pub Date : 2002-08-07 DOI: 10.1109/IVELEC.2002.999273
M. Blank, P. Borchard, S. Cauffman, K. Felch, Y. M. Mizuhara, W. Lawson
{"title":"Design of a 50 MW 30 GHz gyroklystron amplifier for accelerator applications","authors":"M. Blank, P. Borchard, S. Cauffman, K. Felch, Y. M. Mizuhara, W. Lawson","doi":"10.1109/IVELEC.2002.999273","DOIUrl":"https://doi.org/10.1109/IVELEC.2002.999273","url":null,"abstract":"Summary form only given. The results of a study performed by CPI for CERN are described below. The purpose of the work was to design a pulsed 30 GHz, 50 MW gyroklystron amplifier to be used for testing and conditioning Compact Linear Collider (CLIC) mainline accelerating structures. The specifications for the amplifier are listed. The technical risk factors and achievable performance for several distinct configurations, including coaxial and cylindrical cavities interacting at the fundamental and second harmonic of the cyclotron frequency, were investigated in the study. Following detailed physics designs of several different circuits and electron guns, a fundamental TE/sub 011/ coaxial mode configuration was selected as the most likely to achieve the specifications. Design details and performance predictions for this configuration are given.","PeriodicalId":344852,"journal":{"name":"Third IEEE International Vacuum Electronics Conference (IEEE Cat. No.02EX524)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125286662","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Millimeter wave vacuum power booster development 毫米波真空助力器研制
Third IEEE International Vacuum Electronics Conference (IEEE Cat. No.02EX524) Pub Date : 2002-08-07 DOI: 10.1109/IVELEC.2002.999417
J. Tucek, P. Frawley, B. Gannon, V. Heinen, K. Kreischer, C. Armstrong, G. Groshart
{"title":"Millimeter wave vacuum power booster development","authors":"J. Tucek, P. Frawley, B. Gannon, V. Heinen, K. Kreischer, C. Armstrong, G. Groshart","doi":"10.1109/IVELEC.2002.999417","DOIUrl":"https://doi.org/10.1109/IVELEC.2002.999417","url":null,"abstract":"Summary form only given. Commercial and military applications require compact, high power amplifiers operating at frequencies from 2-45 GHz. Low-cost, compact Microwave Power Modules (MPM) have been very successful at efficiently delivering over 100 W of power for frequencies up to 18 GHz. The same design concept for the Vacuum Power Booster (VPB) of the MPM is being applied to VPBs operating in the millimeter wave frequency range. These new millimeter wave VPBs will be incorporated into Millimeter Wave Power Modules (MMPM). Extending the MPM technology, MMPMs will meet the emerging requirements for frequency coverage from 18-40 GHz. This paper describes the progress of the current developmental effort on an 18-40 GHz MMPM VPB (helix traveling wave tube), producing over 80 W of power from 18 to 35 GHz and more than 50 W of power at 40 GHz. The current VPB is a complete redesign of the earlier millimeter wave VPB effort which produced a VPB that was capable of 100 W of output power over 18-35 GHz. However, above 35 GHz, the output power declined rapidly. The current work involved a complete re-design of the aforementioned VPB to improve the power performance across the whole Ka band.","PeriodicalId":344852,"journal":{"name":"Third IEEE International Vacuum Electronics Conference (IEEE Cat. No.02EX524)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122723136","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Low noise, low phase distortion 120 W K-band TWT 低噪声，低相位失真120w k波段行波管
Third IEEE International Vacuum Electronics Conference (IEEE Cat. No.02EX524) Pub Date : 2002-08-07 DOI: 10.1109/IVELEC.2002.999250
D. S. Komm, W. Menninger, N. Robbins
{"title":"Low noise, low phase distortion 120 W K-band TWT","authors":"D. S. Komm, W. Menninger, N. Robbins","doi":"10.1109/IVELEC.2002.999250","DOIUrl":"https://doi.org/10.1109/IVELEC.2002.999250","url":null,"abstract":"Summary form only given. Boeing Electron Dynamic Devices (EDD) has continued the development of a special class of low phase distortion TWTs optimized for digital communications in the 18-21 GHz frequency band. The first of these devices, the model 995H, featured extremely low AM/PM conversion of only 2/spl deg//dB. This paper reports the development of a new version, the model 995HA, wherein we have reduced the noise power of the device while continuing to maintain the low phase distortion. The 995HA has a basic electronic efficiency of 18%. Using a multi-stage depressed collector, the TWT has an overall efficiency at saturation of approximately 55%. These low efficiencies are a result of the circuit design trade-offs needed to produce the low phase distortion characteristics.","PeriodicalId":344852,"journal":{"name":"Third IEEE International Vacuum Electronics Conference (IEEE Cat. No.02EX524)","volume":"308 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122867625","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Research progress on L-band broadband MBK l波段宽带MBK的研究进展
Third IEEE International Vacuum Electronics Conference (IEEE Cat. No.02EX524) Pub Date : 2002-08-07 DOI: 10.1109/IVELEC.2002.999387
Ding Yaogen
{"title":"Research progress on L-band broadband MBK","authors":"Ding Yaogen","doi":"10.1109/IVELEC.2002.999387","DOIUrl":"https://doi.org/10.1109/IVELEC.2002.999387","url":null,"abstract":"L-band broadband multiple beam klystron (MBK) with peak power of 180 kW and bandwidth 12% is developing in IECAS recent years. Comparing with single beam klystron and TWT, the MBK has the advantages of low beam voltage, wide bandwidth, high efficiency and high gain, small volume and lightweight. The main research progress and key technical problem on the L-band MBK will be described in this paper.","PeriodicalId":344852,"journal":{"name":"Third IEEE International Vacuum Electronics Conference (IEEE Cat. No.02EX524)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131369269","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Parametric modeling of folded waveguide circuits for millimeter-wave traveling wave tubes 毫米波行波管折叠波导电路的参数化建模
Third IEEE International Vacuum Electronics Conference (IEEE Cat. No.02EX524) Pub Date : 2002-08-07 DOI: 10.1109/IVELEC.2002.999253
J. Booske, M. Converse, D. Gallagher, K. Kreischer, V. Heinen, C. Kory, C. Chevalier
{"title":"Parametric modeling of folded waveguide circuits for millimeter-wave traveling wave tubes","authors":"J. Booske, M. Converse, D. Gallagher, K. Kreischer, V. Heinen, C. Kory, C. Chevalier","doi":"10.1109/IVELEC.2002.999253","DOIUrl":"https://doi.org/10.1109/IVELEC.2002.999253","url":null,"abstract":"Summary form only given. Results of different models are compared for calculating effective phase velocities and interaction impedances of folded waveguide slow wave circuits for use in millimeterwave and submillimeter-wave traveling wave tubes. These parameters are needed for 1D parametric model simulations of folded waveguide traveling wave tubes (FWTWTs). The models investigated include approximate analytic expressions, equivalent circuits, three-dimensional (3D) finite difference models, and 3D finite element models. The phase velocity predictions are compared with experimental measurements of dispersion in a 40-55 GHz folded waveguide circuit. The various model results are incorporated into the CHRISTINE1D code to obtain predictions of small signal gain and saturated power in a 40-55 GHz, 100 W FWTWT. The comparisons of CHRISTINE1D simulations and measured frequency-dependent gain provide a sensitive, confirming assessment of the accuracy of the simulation tools.","PeriodicalId":344852,"journal":{"name":"Third IEEE International Vacuum Electronics Conference (IEEE Cat. No.02EX524)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134130430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
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