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

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Implementation field-emitting planar matrices In electron-optic systems of powerful RF devices 在大功率射频器件的光电系统中实现场发射平面矩阵
2013 IEEE 14th International Vacuum Electronics Conference (IVEC) Pub Date : 2013-05-21 DOI: 10.1109/IVEC.2013.6571058
S. Morev, N. Aban'shin, B. Gorfinkel’, A. Darmaev, D. Komarov, A. E. Makeev, A. Yakunin
{"title":"Implementation field-emitting planar matrices In electron-optic systems of powerful RF devices","authors":"S. Morev, N. Aban'shin, B. Gorfinkel’, A. Darmaev, D. Komarov, A. E. Makeev, A. Yakunin","doi":"10.1109/IVEC.2013.6571058","DOIUrl":"https://doi.org/10.1109/IVEC.2013.6571058","url":null,"abstract":"The reasons of limitations in field emitter implementation in powerful RF tubes are investigated, overcoming ways are discussed. The results of electron beam optic system (EOS) design with planar type matrices of field emission cathodes and intense beams with power above 100 kW in CW mode are presented.","PeriodicalId":283300,"journal":{"name":"2013 IEEE 14th International Vacuum Electronics Conference (IVEC)","volume":"9 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131437639","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 novel angular log-periodic micro-strip meander-line slow wave structure for low-voltage and wideband traveling wave tube
2013 IEEE 14th International Vacuum Electronics Conference (IVEC) Pub Date : 2013-05-21 DOI: 10.1109/IVEC.2013.6571028
Shaomeng Wang, Zan Cao, Y. Hou, G. Zhao, Yanyu Wei, Z. Duan, Zhanliang Wang, Y. Gong
{"title":"A novel angular log-periodic micro-strip meander-line slow wave structure for low-voltage and wideband traveling wave tube","authors":"Shaomeng Wang, Zan Cao, Y. Hou, G. Zhao, Yanyu Wei, Z. Duan, Zhanliang Wang, Y. Gong","doi":"10.1109/IVEC.2013.6571028","DOIUrl":"https://doi.org/10.1109/IVEC.2013.6571028","url":null,"abstract":"A novel slow-wave-structure (SWS) named angular log-periodic micro-strip meander-line was proposed in this paper. This kind of slow wave structure is mainly determined by 3 parameters only, and the calculation results show that it has a very weakly dispersion s. That is to say, its operation bandwidth would be very wide. Its another advantage is the low operation voltage. The radial normalized phase velocity by light velocity of wave can be as low as 0.04, while the DC voltage just 400 V, which is much smaller than conventional traveling wave tubes. The dispersion and transmission characteristics of this kind of slow wave structure were obtained.","PeriodicalId":283300,"journal":{"name":"2013 IEEE 14th International Vacuum Electronics Conference (IVEC)","volume":"24 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":"126678613","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
Dielectric enhancement of electric fields for a noble cold cathode 贵金属冷阴极电场的介电增强
2013 IEEE 14th International Vacuum Electronics Conference (IVEC) Pub Date : 2013-05-21 DOI: 10.1109/IVEC.2013.6570981
M. Chung, J. Chun, A. Mayer, N. Miskovsky, P. H. Cutler
{"title":"Dielectric enhancement of electric fields for a noble cold cathode","authors":"M. Chung, J. Chun, A. Mayer, N. Miskovsky, P. H. Cutler","doi":"10.1109/IVEC.2013.6570981","DOIUrl":"https://doi.org/10.1109/IVEC.2013.6570981","url":null,"abstract":"Electric fields at metal-dielectric contact were calculated analytically and numerically. The obtained field exhibited enhancements strong enough to cause breakdown at a triple junction and more apparently at a quadruple junction. Such field enhancements may lead to a noble type of cold cathode.","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":"121635545","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
An Evaluation of Heat Dissipation Capability of Slow-wave Structure by Micro Fiber Bragg Grating Sensor Array 微光纤光栅传感器阵列对慢波结构散热性能的评价
2013 IEEE 14th International Vacuum Electronics Conference (IVEC) Pub Date : 2013-05-21 DOI: 10.1109/IVEC.2013.6571046
Pu Wei, Lu Zhu, Jing Zhang, Xuefeng Wang, Xinqun Zhao, M. Zhou, Minghua Yang, Xiaohan Sun
{"title":"An Evaluation of Heat Dissipation Capability of Slow-wave Structure by Micro Fiber Bragg Grating Sensor Array","authors":"Pu Wei, Lu Zhu, Jing Zhang, Xuefeng Wang, Xinqun Zhao, M. Zhou, Minghua Yang, Xiaohan Sun","doi":"10.1109/IVEC.2013.6571046","DOIUrl":"https://doi.org/10.1109/IVEC.2013.6571046","url":null,"abstract":"We proposed a novel evaluation method of heat dissipation capability of the helix slow-wave structure (SWS). A distributed micro fiber Bragg grating (FBG) sensor array is designed to measure the temperature distribution of the helix in SWS. An experiment on two X-band SWSs of different heat dissipation capability is made and the results show that our method can effectively be used to estimate and distinguish the heat dissipation capability of SWS.","PeriodicalId":283300,"journal":{"name":"2013 IEEE 14th International Vacuum Electronics Conference (IVEC)","volume":"469 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114049239","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
Experimental investigation on sheet electron beam transport with Electron Beam Measuring and Analyzing System developed in IECAS 利用IECAS开发的电子束测量与分析系统进行薄片电子束输运的实验研究
2013 IEEE 14th International Vacuum Electronics Conference (IVEC) Pub Date : 2013-05-21 DOI: 10.1109/IVEC.2013.6570895
C. Ruan, Qingsheng Li, Shuzhong Wang, Xiudong Yang, Xunlei Wu, Chongshan Li
{"title":"Experimental investigation on sheet electron beam transport with Electron Beam Measuring and Analyzing System developed in IECAS","authors":"C. Ruan, Qingsheng Li, Shuzhong Wang, Xiudong Yang, Xunlei Wu, Chongshan Li","doi":"10.1109/IVEC.2013.6570895","DOIUrl":"https://doi.org/10.1109/IVEC.2013.6570895","url":null,"abstract":"Recently, a set of instrument named Electron Beam Measuring and Analyzing System (EBMAS) has being built in Institute of Electronics, Chinese Academy of Sciences (IECAS), which can be used to measure the dynamic parameters for the high power electron beam during its formation and transport for microwave vacuum electron devices. In this paper, the EBMAS with its measurement of cross section, current density, energy dispersion, and its three dimensional trajectory with data acquisition and processing system are introduced for the high power electron beam. Then, the instrument is used to measure and analyze the sheet electron beam transport and theirs Diocotron instabilities for the W-band sheet beam klystron developed in IECAS, the thorough experiment results are presented, and good agreement are obtained for the experiment and simulation results.","PeriodicalId":283300,"journal":{"name":"2013 IEEE 14th International Vacuum Electronics Conference (IVEC)","volume":"22 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":"114321628","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
Use of flexible LCTWTA for communication satellites 使用灵活的LCTWTA通讯卫星
2013 IEEE 14th International Vacuum Electronics Conference (IVEC) Pub Date : 2013-05-21 DOI: 10.1109/IVEC.2013.6571003
Frédéric Piro, Jean-Pierre Joër, Ioannis Frysiras
{"title":"Use of flexible LCTWTA for communication satellites","authors":"Frédéric Piro, Jean-Pierre Joër, Ioannis Frysiras","doi":"10.1109/IVEC.2013.6571003","DOIUrl":"https://doi.org/10.1109/IVEC.2013.6571003","url":null,"abstract":"This paper identifies the need of satellite operators for in-orbit flexibility. It also examines the various advantages of flexible dual LCTWTA used onboard communication satellites, as well as the areas that need to be considered by LCTWTA manufacturers for this new technology to remain attractive.","PeriodicalId":283300,"journal":{"name":"2013 IEEE 14th International Vacuum Electronics Conference (IVEC)","volume":"8 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":"114595439","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
3D simulations of secondary electron emission from hydrogen-terminated diamond 端氢金刚石二次电子发射的三维模拟
2013 IEEE 14th International Vacuum Electronics Conference (IVEC) Pub Date : 2013-05-21 DOI: 10.1109/IVEC.2013.6570933
D. Dimitrov, E. Wang, J. Smedley, I. Ben-Zvi, T. Rao
{"title":"3D simulations of secondary electron emission from hydrogen-terminated diamond","authors":"D. Dimitrov, E. Wang, J. Smedley, I. Ben-Zvi, T. Rao","doi":"10.1109/IVEC.2013.6570933","DOIUrl":"https://doi.org/10.1109/IVEC.2013.6570933","url":null,"abstract":"We report detailed modeling and simulations of secondary electron generation, transport, and emission from diamond cathodes. The simulations can explain the range of experimentally determined emission probability as a function of external electric field. It is essential to include conservation of transverse momentum and effective mass anisotropy when modeling emission.","PeriodicalId":283300,"journal":{"name":"2013 IEEE 14th International Vacuum Electronics Conference (IVEC)","volume":"83 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":"115915070","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
Numerical evaluation of the role of reflectors to maximize the power efficiency of an axial Vircator 数值评价的作用反射器，以最大限度地提高功率效率的轴向执行器
2013 IEEE 14th International Vacuum Electronics Conference (IVEC) Pub Date : 2013-05-21 DOI: 10.1109/IVEC.2013.6571105
S. Champeaux, P. Gouard, R. Cousin, J. Larour
{"title":"Numerical evaluation of the role of reflectors to maximize the power efficiency of an axial Vircator","authors":"S. Champeaux, P. Gouard, R. Cousin, J. Larour","doi":"10.1109/IVEC.2013.6571105","DOIUrl":"https://doi.org/10.1109/IVEC.2013.6571105","url":null,"abstract":"The effects of introducing one or more reflectors inside an axial Vircator are analyzed using CSTParticle Studio® PIC simulation. The power conversion efficiency is shown to be enhanced from 1% to 13% at 3 GHz. The optimum output power is obtained with three reflectors.","PeriodicalId":283300,"journal":{"name":"2013 IEEE 14th International Vacuum Electronics Conference (IVEC)","volume":"262 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":"116076924","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
Corkscrew modulated hollow-beam klystron for high power and frequency multiplying applications 用于高功率和倍频应用的螺旋调制空心速调管
2013 IEEE 14th International Vacuum Electronics Conference (IVEC) Pub Date : 2013-05-21 DOI: 10.1109/IVEC.2013.6571124
A. Grede, H. Henke
{"title":"Corkscrew modulated hollow-beam klystron for high power and frequency multiplying applications","authors":"A. Grede, H. Henke","doi":"10.1109/IVEC.2013.6571124","DOIUrl":"https://doi.org/10.1109/IVEC.2013.6571124","url":null,"abstract":"Different concepts for corkscrew modulated klystrons are presented. Special attention is paid to the generation of multiple twisted beams to reduce current density in high power applications. Furthermore, the possibility of simple frequency multiplication in the output and idler cavities is addressed.","PeriodicalId":283300,"journal":{"name":"2013 IEEE 14th International Vacuum Electronics Conference (IVEC)","volume":"8 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":"124356339","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
Sheet electron beam formation and transport in the uniform magnetic field 均匀磁场下片状电子束的形成与输运
2013 IEEE 14th International Vacuum Electronics Conference (IVEC) Pub Date : 2013-05-21 DOI: 10.1109/IVEC.2013.6570993
Xianfeng Tang, G. Sha, Z. Duan, Zhanliang Wang, T. Tang, Yanyu Wei, Y. Gong
{"title":"Sheet electron beam formation and transport in the uniform magnetic field","authors":"Xianfeng Tang, G. Sha, Z. Duan, Zhanliang Wang, T. Tang, Yanyu Wei, Y. Gong","doi":"10.1109/IVEC.2013.6570993","DOIUrl":"https://doi.org/10.1109/IVEC.2013.6570993","url":null,"abstract":"In this paper, we have presented the simulation results on sheet beam electron gun and sheet beam transport in a uniform magnetic field. It is shown that the sheet beam with size 4.6 mm×0.4 mm, generated by the electron gun with 20 kV, 560 mA, can stably pass through the beam tunnel with transverse size 6 mm×1 mm and the length 120 mm in a uniform magnetic field.","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":"121618315","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: 5
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