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

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Time-domain PIC-modeling of suppression of self-modulation in the multiple cavity klystron oscillator with delayed feedback 延迟反馈多腔速调管振荡器自调制抑制的时域pic建模
2013 IEEE 14th International Vacuum Electronics Conference (IVEC) Pub Date : 2013-05-21 DOI: 10.1109/IVEC.2013.6570952
V. Emelyanov, N. Ryskin
{"title":"Time-domain PIC-modeling of suppression of self-modulation in the multiple cavity klystron oscillator with delayed feedback","authors":"V. Emelyanov, N. Ryskin","doi":"10.1109/IVEC.2013.6570952","DOIUrl":"https://doi.org/10.1109/IVEC.2013.6570952","url":null,"abstract":"The results of time-domain PIC-modeling of suppression of self-modulation in a four-cavity klystron oscillator with external delayed feedback are presented. The method is based on using an additional feedback loop with properly chosen delay and phase shift. The application of the method increases the self-modulation threshold beam current. This results in significant increase of the output power and efficiency in comparison with the oscillator with a single feedback.","PeriodicalId":283300,"journal":{"name":"2013 IEEE 14th International Vacuum Electronics Conference (IVEC)","volume":"16 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":"127212964","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 X-band pulsed MPM for radar system 一种用于雷达系统的x波段脉冲MPM
2013 IEEE 14th International Vacuum Electronics Conference (IVEC) Pub Date : 2013-05-21 DOI: 10.1109/IVEC.2013.6570914
J. Kou, Yixue Wei, Hongzhi Zhang, He Wang, F. Huang, Bin Wang, Yong Zhang, B. Yan
{"title":"A X-band pulsed MPM for radar system","authors":"J. Kou, Yixue Wei, Hongzhi Zhang, He Wang, F. Huang, Bin Wang, Yong Zhang, B. Yan","doi":"10.1109/IVEC.2013.6570914","DOIUrl":"https://doi.org/10.1109/IVEC.2013.6570914","url":null,"abstract":"A X-band pulsed MPM for radar system had been developed in China. The MPM could provide output power of 500 W with 30% efficiency in 20% duty cycle. The dimension of it is 236mm×156mm×33mm, and the weight of it is less than 2Kg.","PeriodicalId":283300,"journal":{"name":"2013 IEEE 14th International Vacuum Electronics Conference (IVEC)","volume":"16 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":"125005581","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
Electron over-barrier emission mechanism of single layer graphene 单层石墨烯的电子过势垒发射机理
2013 IEEE 14th International Vacuum Electronics Conference (IVEC) Pub Date : 2013-05-21 DOI: 10.1109/IVEC.2013.6570973
S. Liang, L. Ang
{"title":"Electron over-barrier emission mechanism of single layer graphene","authors":"S. Liang, L. Ang","doi":"10.1109/IVEC.2013.6570973","DOIUrl":"https://doi.org/10.1109/IVEC.2013.6570973","url":null,"abstract":"We propose a model which describes the sideband electrons emission from a vertically aligned monolayer graphene with an internal time-oscillating barrier and static surface barrier. Our results show that electron emission is governed by the over-barrier emission process, where the emitting current line density J [nA/nm] is only dependent on the amplitude V<sub>1</sub> and frequency ω of the oscillating barrier, which is characterized by 0<; γ= V<sub>1</sub>/ hω<;1. It is found that J is maximized around the optical frequency at ω= 10<sup>14</sup> to 10<sup>15</sup> rad/s, and J is higher for larger γ.","PeriodicalId":283300,"journal":{"name":"2013 IEEE 14th International Vacuum Electronics Conference (IVEC)","volume":"38 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":"125819061","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
Feasibility of quantum analogues of classical microwave devices on longitudinal interaction 经典微波器件纵向相互作用量子类似物的可行性
2013 IEEE 14th International Vacuum Electronics Conference (IVEC) Pub Date : 2013-05-21 DOI: 10.1109/IVEC.2013.6570941
V. Kanavets, Yury D. MozgovoiVasily I. Kanavets, S. A. Khritkin
{"title":"Feasibility of quantum analogues of classical microwave devices on longitudinal interaction","authors":"V. Kanavets, Yury D. MozgovoiVasily I. Kanavets, S. A. Khritkin","doi":"10.1109/IVEC.2013.6570941","DOIUrl":"https://doi.org/10.1109/IVEC.2013.6570941","url":null,"abstract":"Possible quantum analogues of classical powerful microwave devices (multiwave Cherenkov generator, high-power klystrons, relativistic TWT and BWO) in the interaction of multi streams of charged particles of different sign are discussed. From the standpoint link with the experiment, we have the electron-positron system with collective interaction of many macroscopic groups of particles.","PeriodicalId":283300,"journal":{"name":"2013 IEEE 14th International Vacuum Electronics Conference (IVEC)","volume":"38 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":"114438652","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
A 1.8 kW broad band Ka-band TWT power booster 1.8 kW宽带ka波段行波管功率增强器
2013 IEEE 14th International Vacuum Electronics Conference (IVEC) Pub Date : 2013-05-21 DOI: 10.1109/IVEC.2013.6571001
B. Levush, D. Abe, I. Chernyavskiy, S. Cooke, A. Vlasov, J. Legarra, K. Nguyen, E. Wright, M. Cusick, R. Begum, J. Ramirez-Aldana, B. Stockwell, D. Chernin
{"title":"A 1.8 kW broad band Ka-band TWT power booster","authors":"B. Levush, D. Abe, I. Chernyavskiy, S. Cooke, A. Vlasov, J. Legarra, K. Nguyen, E. Wright, M. Cusick, R. Begum, J. Ramirez-Aldana, B. Stockwell, D. Chernin","doi":"10.1109/IVEC.2013.6571001","DOIUrl":"https://doi.org/10.1109/IVEC.2013.6571001","url":null,"abstract":"A two stage 'driver-booster' TWT configuration designed to produce 1.8 kW in Ka-band will be described. The folded waveguide circuit used in the power booster is designed to meet bandwidth requirements while simultaneously eliminating the usual stop-band at 2π, in order to avoid drive-induced oscillation.","PeriodicalId":283300,"journal":{"name":"2013 IEEE 14th International Vacuum Electronics Conference (IVEC)","volume":"50 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":"114475895","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
Manufacturing of a 263 GHz continuously tunable gyrotron 263千兆赫连续可调谐回旋管的制造
2013 IEEE 14th International Vacuum Electronics Conference (IVEC) Pub Date : 2013-05-21 DOI: 10.1109/IVEC.2013.6571071
Y. Rozier, F. Legrand, C. Liévin, J. Racamier, R. Marchesin, S. Alberti, F. Braunmueller, J. Hogge, M. D. da Silva, M. Tran, T. Tran, A. Macor
{"title":"Manufacturing of a 263 GHz continuously tunable gyrotron","authors":"Y. Rozier, F. Legrand, C. Liévin, J. Racamier, R. Marchesin, S. Alberti, F. Braunmueller, J. Hogge, M. D. da Silva, M. Tran, T. Tran, A. Macor","doi":"10.1109/IVEC.2013.6571071","DOIUrl":"https://doi.org/10.1109/IVEC.2013.6571071","url":null,"abstract":"A 263 GHz gyrotron dedicated to Dynamic Nuclear Polarization (DNP) enhanced Nuclear Magnetic Resonance (NMR) spectroscopy has been designed by EPFL and manufactured by Thales. With this device, we have demonstrated an output power up to 160 W in continuous wave. Design and main experimental results are discussed in this paper.","PeriodicalId":283300,"journal":{"name":"2013 IEEE 14th International Vacuum Electronics Conference (IVEC)","volume":"33 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":"121867296","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: 11
Design of adapted phase correcting mirrors for gyrotrons 陀螺自适应相位校正镜的设计
2013 IEEE 14th International Vacuum Electronics Conference (IVEC) Pub Date : 2013-05-21 DOI: 10.1109/IVEC.2013.6570890
Jianwei Liu, J. Jin, M. Thumm, Qing Zhao, Hong-fu Li
{"title":"Design of adapted phase correcting mirrors for gyrotrons","authors":"Jianwei Liu, J. Jin, M. Thumm, Qing Zhao, Hong-fu Li","doi":"10.1109/IVEC.2013.6570890","DOIUrl":"https://doi.org/10.1109/IVEC.2013.6570890","url":null,"abstract":"This paper presents a method for the design of phase correcting mirrors for gyrotrons. A computer code has been developed for vector analysis of electromagnetic fields in the mirror systems. Based on the Katsenelenbaum-Semenov method, the computer code has been written for the synthesis of adapted phase correcting mirrors. As an example, a quasi-optical mode converter including a Vlasov launcher and two phase correcting mirrors has been designed for a 94-GHz TE6,2 mode gyrotron. The simulation results show that the conversion efficiency is 87.19% (including power transmission losses).","PeriodicalId":283300,"journal":{"name":"2013 IEEE 14th International Vacuum Electronics Conference (IVEC)","volume":"122 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":"129541058","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
Switch tube test set 开关管测试仪
2013 IEEE 14th International Vacuum Electronics Conference (IVEC) Pub Date : 2013-05-21 DOI: 10.1109/IVEC.2013.6571185
J. Kinross-wright, Luan Jashari, C. Chipman, M. Kempkes
{"title":"Switch tube test set","authors":"J. Kinross-wright, Luan Jashari, C. Chipman, M. Kempkes","doi":"10.1109/IVEC.2013.6571185","DOIUrl":"https://doi.org/10.1109/IVEC.2013.6571185","url":null,"abstract":"Diversified Technologies, Inc. (DTI), under contract for BAE Systems, developed a switch tube test set for the realistic testing and conditioning of high power modulator switch tubes employed in radar transmitters. The system may be configured for triode or tetrode tubes and has a nominal plate power rating of 30 kW.","PeriodicalId":283300,"journal":{"name":"2013 IEEE 14th International Vacuum Electronics Conference (IVEC)","volume":"10 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":"128685150","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
Recent experimental results of magnetron injection gun (MIG) for 42 GHz 200 kW gyrotron 42 GHz 200kw回旋管磁控喷射枪(MIG)的最新实验结果
2013 IEEE 14th International Vacuum Electronics Conference (IVEC) Pub Date : 2013-05-21 DOI: 10.1109/IVEC.2013.6571100
H. Khatun, U. Singh, Narendra Kumar, N. Sahu, Deepak Srivastava, M. Kumar, R. Poonia, Pushpendra Singh, Sunil Sharma, A. Mishra, Vishant Dwivedi, M. K. Alaria, A. Sinha
{"title":"Recent experimental results of magnetron injection gun (MIG) for 42 GHz 200 kW gyrotron","authors":"H. Khatun, U. Singh, Narendra Kumar, N. Sahu, Deepak Srivastava, M. Kumar, R. Poonia, Pushpendra Singh, Sunil Sharma, A. Mishra, Vishant Dwivedi, M. K. Alaria, A. Sinha","doi":"10.1109/IVEC.2013.6571100","DOIUrl":"https://doi.org/10.1109/IVEC.2013.6571100","url":null,"abstract":"A sealed off magnetron injection gun (MIG) collector module for 42 GHz 200 kW gyrotron has been developed. The paper reports the high voltage and beam-emission test result. In addition, the current-voltage characteristics at different heater wattage are also discussed from recent tests.","PeriodicalId":283300,"journal":{"name":"2013 IEEE 14th International Vacuum Electronics Conference (IVEC)","volume":"7 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":"129792274","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
Radiation cooled TWTs at end-of-life: An evaluation of thermal evolution over 15 years 寿命结束时的辐射冷却行波管:15年热演化的评估
2013 IEEE 14th International Vacuum Electronics Conference (IVEC) Pub Date : 2013-05-21 DOI: 10.1109/IVEC.2013.6571136
M. Kaliski
{"title":"Radiation cooled TWTs at end-of-life: An evaluation of thermal evolution over 15 years","authors":"M. Kaliski","doi":"10.1109/IVEC.2013.6571136","DOIUrl":"https://doi.org/10.1109/IVEC.2013.6571136","url":null,"abstract":"After 15 years, the first spacecraft using direct radiating collector (DRC) TWTs since their widespread introduction have reached the end of their mission life. This paper reviews the trends in DRC TWT thermal performance over that time, using on-orbit temperature measurements from dozens of DRC TWTs. The results yield valuable data about the thermal environment and absolute maximum and minimum temperatures encountered in the harsh thermal environment.","PeriodicalId":283300,"journal":{"name":"2013 IEEE 14th International Vacuum Electronics Conference (IVEC)","volume":"33 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":"124029713","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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