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2013 IEEE 14th International Vacuum Electronics Conference (IVEC)最新文献

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Environmental influence on MM-type dispenser cathodes used in VED's and propulsion systems 环境对机动车辆和推进系统中mm型分配器阴极的影响
2013 IEEE 14th International Vacuum Electronics Conference (IVEC) Pub Date : 2013-05-21 DOI: 10.1109/IVEC.2013.6571146
M. Schirra, H. Seidel, A. Lazurenko, S. Weis, Benjamin van Reijen, A. Genovese, J. Haderspeck, P. Holtmann
{"title":"Environmental influence on MM-type dispenser cathodes used in VED's and propulsion systems","authors":"M. Schirra, H. Seidel, A. Lazurenko, S. Weis, Benjamin van Reijen, A. Genovese, J. Haderspeck, P. Holtmann","doi":"10.1109/IVEC.2013.6571146","DOIUrl":"https://doi.org/10.1109/IVEC.2013.6571146","url":null,"abstract":"In the present work the basic functional concept of the TED hollow cathode neutralizer and the Qualification philosophy for vacuum electronic cathodes will be introduced briefly. Then the results of the twofold Qualification program of the hollow cathode neutralizer will be presented in more detail. Especially the influence of the environment on the neutraliser was investigated and, it was found that the TED hollow cathode neutralizer is capable of enduring the exposition to significant amounts of humidity for several times without performance degradation. Additionally, it could be demonstrated, that the plasma operation of the neutralizer serves as proper means for the regeneration of a poisoned cathode surface.","PeriodicalId":283300,"journal":{"name":"2013 IEEE 14th International Vacuum Electronics Conference (IVEC)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133645413","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
Modeling and characterization of a slow-wave structure for a sheet-beam sub-THz TWT amplifier 亚太赫兹板波束行波管放大器慢波结构的建模与表征
2013 IEEE 14th International Vacuum Electronics Conference (IVEC) Pub Date : 2013-05-21 DOI: 10.1109/IVEC.2013.6571022
N. Ryskin, A. Rozhnev, T. A. Karetnikova, G. Torgashov, N. I. Sinitsyn, P. Shalaev, A. Bourtsev
{"title":"Modeling and characterization of a slow-wave structure for a sheet-beam sub-THz TWT amplifier","authors":"N. Ryskin, A. Rozhnev, T. A. Karetnikova, G. Torgashov, N. I. Sinitsyn, P. Shalaev, A. Bourtsev","doi":"10.1109/IVEC.2013.6571022","DOIUrl":"https://doi.org/10.1109/IVEC.2013.6571022","url":null,"abstract":"Microfabricated sheet-beam traveling-wave tubes for THz and sub-THz operation have attracted a considerable interest. In this paper we discuss design issues of a double-vane slow-wave structure (SWS) for a 0.2 THz amplifier. A fast and accurate code for calculation of electrodynamic characteristics of the SWS is developed.","PeriodicalId":283300,"journal":{"name":"2013 IEEE 14th International Vacuum Electronics Conference (IVEC)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134175707","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: 10
Improvement of cold parameters of the double corrugated waveguide by geometrical shaping of the corrugations 利用波纹的几何形状改善双波纹波导的冷参量
2013 IEEE 14th International Vacuum Electronics Conference (IVEC) Pub Date : 2013-05-21 DOI: 10.1109/IVEC.2013.6571062
M. Mineo, C. Paoloni
{"title":"Improvement of cold parameters of the double corrugated waveguide by geometrical shaping of the corrugations","authors":"M. Mineo, C. Paoloni","doi":"10.1109/IVEC.2013.6571062","DOIUrl":"https://doi.org/10.1109/IVEC.2013.6571062","url":null,"abstract":"The double corrugated waveguide was demonstrated as an effective solution for the realization of interaction structures at terahertz frequencies. By using different shapes of the corrugations, a relevant improvement of the cold parameters can be obtained. In particular lower losses are beneficial for tube performance.","PeriodicalId":283300,"journal":{"name":"2013 IEEE 14th International Vacuum Electronics Conference (IVEC)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134304944","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
Development of W-band folded waveguide pulsed TWT w波段折叠波导脉冲行波管的研制
2013 IEEE 14th International Vacuum Electronics Conference (IVEC) Pub Date : 2013-05-21 DOI: 10.1109/IVEC.2013.6570920
Jun Cai, Jinjun Feng, Y. Hu, Yinghua Du, Ye Tang, Jingkai Liu, Ruitong Dong, Ji Chen, Xianping Wu
{"title":"Development of W-band folded waveguide pulsed TWT","authors":"Jun Cai, Jinjun Feng, Y. Hu, Yinghua Du, Ye Tang, Jingkai Liu, Ruitong Dong, Ji Chen, Xianping Wu","doi":"10.1109/IVEC.2013.6570920","DOIUrl":"https://doi.org/10.1109/IVEC.2013.6570920","url":null,"abstract":"This paper presents the development of W-band folded waveguide pulsed TWT. We have obtained experimentally over 100W output power with 5GHz instantaneous bandwidth and 33dB gain at 20% duty cycle.","PeriodicalId":283300,"journal":{"name":"2013 IEEE 14th International Vacuum Electronics Conference (IVEC)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134097549","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: 21
Effect of window reflection on mode competition in gyrotron 回旋管窗口反射对模式竞争的影响
2013 IEEE 14th International Vacuum Electronics Conference (IVEC) Pub Date : 2013-05-21 DOI: 10.1109/IVEC.2013.6570960
S. A. Usacheva, M. M. Chumakova, M. Glyavin, Y. Novozhilova, N. Ryskin
{"title":"Effect of window reflection on mode competition in gyrotron","authors":"S. A. Usacheva, M. M. Chumakova, M. Glyavin, Y. Novozhilova, N. Ryskin","doi":"10.1109/IVEC.2013.6570960","DOIUrl":"https://doi.org/10.1109/IVEC.2013.6570960","url":null,"abstract":"Effect of reflection from the output window on the mode competition in gyrotron is investigated using the equations of quasilinear theory for slowly varying amplitudes of the modes with time delayed terms. Stability analysis of single-mode operation shows that the reflections can, under the certain conditions, strongly affect the operation regime.","PeriodicalId":283300,"journal":{"name":"2013 IEEE 14th International Vacuum Electronics Conference (IVEC)","volume":"7 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123671992","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
A 100 Watt W-Band MPM TWT 一个100瓦w波段MPM行波管
2013 IEEE 14th International Vacuum Electronics Conference (IVEC) Pub Date : 2013-05-21 DOI: 10.1109/IVEC.2013.6571123
R. Kowalczyk, A. Zubyk, C. Meadows, Mikel Martín, M. Kirshner, R. True, A. Theiss, J. Rominger, C. Armstrong
{"title":"A 100 Watt W-Band MPM TWT","authors":"R. Kowalczyk, A. Zubyk, C. Meadows, Mikel Martín, M. Kirshner, R. True, A. Theiss, J. Rominger, C. Armstrong","doi":"10.1109/IVEC.2013.6571123","DOIUrl":"https://doi.org/10.1109/IVEC.2013.6571123","url":null,"abstract":"L-3 EDD has developed a W-Band TWT with 100 W RF power over 4 GHz of bandwidth around 94 GHz suitable for MPM integration. The TWT employs an aperture grid modulated electron gun with mod-anode current control, a serpentine waveguide interaction circuit, and a single-stage depressed collector. Two TWTs have been built and tested to over 100 W pulsed output power. The first unit has been operated at high duty, producing 65 W CW output power and 75 W average pulsed power with reduced beam current. The TWT is designed for ease of manufacture, and is suitable for MPM integration, relying on conduction cooling and capable of operation to an altitude of 50k feet.","PeriodicalId":283300,"journal":{"name":"2013 IEEE 14th International Vacuum Electronics Conference (IVEC)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121477795","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: 35
Space-qualified, 160-Watt radiation-cooled, X-band helix TWT 符合空间要求的160瓦辐射冷却x波段螺旋行波管
2013 IEEE 14th International Vacuum Electronics Conference (IVEC) Pub Date : 2013-05-21 DOI: 10.1109/IVEC.2013.6571072
R. H. Martin, W. Menninger, X. Zhai, S. T. Blunk, J. Feicht, W. McGeary
{"title":"Space-qualified, 160-Watt radiation-cooled, X-band helix TWT","authors":"R. H. Martin, W. Menninger, X. Zhai, S. T. Blunk, J. Feicht, W. McGeary","doi":"10.1109/IVEC.2013.6571072","DOIUrl":"https://doi.org/10.1109/IVEC.2013.6571072","url":null,"abstract":"L-3 Communications Electron Technologies Inc., (L-3 ETI), has completed space-flight qualification for a 160-W, radiation-cooled, X-band helix traveling-wave tube (TWT). This paper will discuss TWT performance, manufacturing and flight qualification test results.","PeriodicalId":283300,"journal":{"name":"2013 IEEE 14th International Vacuum Electronics Conference (IVEC)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121580927","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
Plasma spraying metal-porous cathodes for high-power microwave devices 高功率微波器件用等离子喷涂金属多孔阴极
2013 IEEE 14th International Vacuum Electronics Conference (IVEC) Pub Date : 2013-05-21 DOI: 10.1109/IVEC.2013.6571036
V. Smirnov, P. I. Akimov, G. Melnichuk, V. Chudin, A. P. Nikitin, I. A. Freydovich, Y. Potapov, Y. Sudakov, A. Bogoslovskaya
{"title":"Plasma spraying metal-porous cathodes for high-power microwave devices","authors":"V. Smirnov, P. I. Akimov, G. Melnichuk, V. Chudin, A. P. Nikitin, I. A. Freydovich, Y. Potapov, Y. Sudakov, A. Bogoslovskaya","doi":"10.1109/IVEC.2013.6571036","DOIUrl":"https://doi.org/10.1109/IVEC.2013.6571036","url":null,"abstract":"Technological and design parts of plasma spraying metal-porous cathodes manufacturing for high-power multi-beam klystron are presented. The samples of cathode assemblies and their parameters are shown when operating in real devices. The results of investigations of the cathodes emission properties in the forced temperature conditions are presented in order to determine the maximum current density and predict emission durability.","PeriodicalId":283300,"journal":{"name":"2013 IEEE 14th International Vacuum Electronics Conference (IVEC)","volume":"104 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122745579","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
Multibeam satellites performance analysis in non-uniform traffic conditions 非均匀交通条件下多波束卫星性能分析
2013 IEEE 14th International Vacuum Electronics Conference (IVEC) Pub Date : 2013-05-21 DOI: 10.1109/IVEC.2013.6571190
Juan Lizarraga, P. Angeletti, N. Alagha, M. Aloisio
{"title":"Multibeam satellites performance analysis in non-uniform traffic conditions","authors":"Juan Lizarraga, P. Angeletti, N. Alagha, M. Aloisio","doi":"10.1109/IVEC.2013.6571190","DOIUrl":"https://doi.org/10.1109/IVEC.2013.6571190","url":null,"abstract":"Multibeam satellite systems are typically designed assuming a uniform traffic demand. However, in reality, the uncertainty of real traffic (i.e. non-spatially-uniform) creates load imbalances among different beams so that some beams work at their maximum, but are still not able to fully meet the traffic demand (overloaded), while others beams use only a fraction of their potential capacity (underloaded). This translates into a situation in which part of the system capacity is left unused, while there is still some demand to be met elsewhere. The overall effect is a serious limitation to the usability of the total system resources. The most intuitive way to address this issue is allocating the available resources (bandwidth, time and power) on demand, depending on the specific traffic conditions.","PeriodicalId":283300,"journal":{"name":"2013 IEEE 14th International Vacuum Electronics Conference (IVEC)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126340230","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: 7
Design considerations for linear beam devices employing emittance dominated electron beams 采用发射率主导电子束的线性光束器件的设计考虑
2013 IEEE 14th International Vacuum Electronics Conference (IVEC) Pub Date : 2013-05-21 DOI: 10.1109/IVEC.2013.6571010
D. Whaley
{"title":"Design considerations for linear beam devices employing emittance dominated electron beams","authors":"D. Whaley","doi":"10.1109/IVEC.2013.6571010","DOIUrl":"https://doi.org/10.1109/IVEC.2013.6571010","url":null,"abstract":"As the frequency of linear beam RF device operation increases, the effect of beam emittance starts to play a more crucial role in the design of real world devices. Several issues related to TWT design in particular have been addressed for devices employing field emitter cathodes through W-Band frequencies. The general formulation is also applicable to emittance dominated thermionic beams operating in the submillimeter and THz regimes.","PeriodicalId":283300,"journal":{"name":"2013 IEEE 14th International Vacuum Electronics Conference (IVEC)","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126020196","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
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