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2020 IEEE 21st International Conference on Vacuum Electronics (IVEC)最新文献

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Design and Test of Copper Printed RF Cavities 铜印刷射频腔的设计与测试
2020 IEEE 21st International Conference on Vacuum Electronics (IVEC) Pub Date : 2020-10-19 DOI: 10.1109/IVEC45766.2020.9520624
C. Nantista, D. Gamzina, C. Ledford, T. Horn, P. Carriere, P. Frigola
{"title":"Design and Test of Copper Printed RF Cavities","authors":"C. Nantista, D. Gamzina, C. Ledford, T. Horn, P. Carriere, P. Frigola","doi":"10.1109/IVEC45766.2020.9520624","DOIUrl":"https://doi.org/10.1109/IVEC45766.2020.9520624","url":null,"abstract":"Additive manufacturing of high-quality copper using electron beam melting techniques has demonstrated significant progress toward suitability for production of vacuum electronics components. Additively manufactured low oxygen level copper wafers, as printed and annealed, have been tested in an RF cavity designed for surface resistivity measurements. Strings of coupled cavities for S-band and X-band traveling wave tubes have been designed for vertical additive manufacturing in powder bed systems, enabling significant cost reduction. The S-band RF cavity string design has been additively manufactured, processed and RF tested.","PeriodicalId":170853,"journal":{"name":"2020 IEEE 21st International Conference on Vacuum Electronics (IVEC)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130805312","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
Self-Healing LaB6 Emitters 自修复LaB6发射器
2020 IEEE 21st International Conference on Vacuum Electronics (IVEC) Pub Date : 2020-10-19 DOI: 10.1109/IVEC45766.2020.9520536
V. Katsap
{"title":"Self-Healing LaB6 Emitters","authors":"V. Katsap","doi":"10.1109/IVEC45766.2020.9520536","DOIUrl":"https://doi.org/10.1109/IVEC45766.2020.9520536","url":null,"abstract":"Practically all commercial LaB6 cathodes make use of (100) crystalline plane symmetry, stability, and low workfucntion. However, in real gun, this plane may suffer dramatic transformations, including surface damage, partial re-crystallization, etc. We studied self-healing of LaB6 cathodes suffered (100) plane damage.","PeriodicalId":170853,"journal":{"name":"2020 IEEE 21st International Conference on Vacuum Electronics (IVEC)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130833763","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
Compact Oversized TE01-to-TE11 Mode Converter based on Deformed Waveguide 基于变形波导的紧凑超大te01 - te11模式转换器
2020 IEEE 21st International Conference on Vacuum Electronics (IVEC) Pub Date : 2020-10-19 DOI: 10.1109/IVEC45766.2020.9520511
Zewei Wu, Xiaoyi Liao, Minxing Wang, Ding Li, Jianxun Wang, Yong Luo
{"title":"Compact Oversized TE01-to-TE11 Mode Converter based on Deformed Waveguide","authors":"Zewei Wu, Xiaoyi Liao, Minxing Wang, Ding Li, Jianxun Wang, Yong Luo","doi":"10.1109/IVEC45766.2020.9520511","DOIUrl":"https://doi.org/10.1109/IVEC45766.2020.9520511","url":null,"abstract":"A Q-band oversized TE01-to-TE11 mode converter is designed for high power transmission line of gyro-TWTs. To obtain a compact and broadband structure, the deformed circular waveguide, named quad-polar waveguide, which can improve the conversion capacity of between TE01 mode and TE11 mode is introduced. The axis perturbation is synthesized by iteration method. Validated by simulation software, the designed mode converter has the efficiency over 95% in the range of 46.9 GHz to 49 GHz.","PeriodicalId":170853,"journal":{"name":"2020 IEEE 21st International Conference on Vacuum Electronics (IVEC)","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131712772","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
The Smith-Purcell Radiation in the Grating-well Structure 光栅孔结构中的史密斯-普塞尔辐射
2020 IEEE 21st International Conference on Vacuum Electronics (IVEC) Pub Date : 2020-10-19 DOI: 10.1109/IVEC45766.2020.9520529
Ping Zhang, Yilin Pan, Xiaosong Wang, Lan Wang, Amir Aimidula, M. Tang, Yaxin Zhang, L. Meng
{"title":"The Smith-Purcell Radiation in the Grating-well Structure","authors":"Ping Zhang, Yilin Pan, Xiaosong Wang, Lan Wang, Amir Aimidula, M. Tang, Yaxin Zhang, L. Meng","doi":"10.1109/IVEC45766.2020.9520529","DOIUrl":"https://doi.org/10.1109/IVEC45766.2020.9520529","url":null,"abstract":"The emergence of the fine micro-nano structure has advanced the development of traditional radiation. The periodical micro-nano structure can not only regulate the electromagnetic wave, but also have the potential to improve the intensity and directionality of radiation from moving electrons. We introduce the diaphragms in the grating structure to control the Smith-Purcell radiation intensity and directionality. Smith-Purcell can be seen as the radiation from the surface current, which is induced by the moving electrons. The simulation with the theory analysis shows that the diaphragms can not only enhance the intensity of the surface current, but also adjust the distribution of it. The changes of the radiation from the fine micro-nano structure demonstrated a more powerful way to control the radiation, and it is of significance in developing electron beam driven THz radiation source.","PeriodicalId":170853,"journal":{"name":"2020 IEEE 21st International Conference on Vacuum Electronics (IVEC)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126057018","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
1 THz Trapezoidal Staggered Grating Traveling Wave Tube 1太赫兹梯形交错光栅行波管
2020 IEEE 21st International Conference on Vacuum Electronics (IVEC) Pub Date : 2020-10-19 DOI: 10.1109/IVEC45766.2020.9520460
R. Yang, Jin Xu, P.C. Yin, S. Fang, Gangxiong Wu, X. Lei, Qian Li, Xuebing Jiang, Jinjing Luo, Lingna Yue, H. Yin, G. Zhao, Wei Yang, Wenxiang Wang, T. Ma, Wenxin Liu, Yanyu Wei
{"title":"1 THz Trapezoidal Staggered Grating Traveling Wave Tube","authors":"R. Yang, Jin Xu, P.C. Yin, S. Fang, Gangxiong Wu, X. Lei, Qian Li, Xuebing Jiang, Jinjing Luo, Lingna Yue, H. Yin, G. Zhao, Wei Yang, Wenxiang Wang, T. Ma, Wenxin Liu, Yanyu Wei","doi":"10.1109/IVEC45766.2020.9520460","DOIUrl":"https://doi.org/10.1109/IVEC45766.2020.9520460","url":null,"abstract":"In this paper, the high frequency characteristics of Trapezoidal Staggered Grating Slow-wave Structure for 1THz Traveling Wave Tube has been studied. The transmission structure has been simulated, the reflection coefficient is less than -20dB in the frequency of 1015GHz to 1055GHz and the loss of the structure is over 58dB. The PIC simulation shows that the saturation output power is 405mW at the frequency of 1030GHz, and the corresponding gain is 19.08dB.","PeriodicalId":170853,"journal":{"name":"2020 IEEE 21st International Conference on Vacuum Electronics (IVEC)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121845629","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
Quantitative Analysis of Single-Surface Dielectric Multipactor Susceptibility with Dual Carrier Frequencies 双载流子频率下单表面介电多因子磁化率的定量分析
2020 IEEE 21st International Conference on Vacuum Electronics (IVEC) Pub Date : 2020-10-19 DOI: 10.1109/IVEC45766.2020.9520483
Shu Lin, A. Iqbal, Peng Zhang, J. Verboncoeur
{"title":"Quantitative Analysis of Single-Surface Dielectric Multipactor Susceptibility with Dual Carrier Frequencies","authors":"Shu Lin, A. Iqbal, Peng Zhang, J. Verboncoeur","doi":"10.1109/IVEC45766.2020.9520483","DOIUrl":"https://doi.org/10.1109/IVEC45766.2020.9520483","url":null,"abstract":"This paper presents quantitative threshold analysis of multipactor breakdown on single dielectric surface initiated with an radio-frequency signal consisting of two carrier frequencies. The statistical modeling of multi-carrier multipactor on a dielectric is conducted for multipactor susceptibility chart and threshold analysis. On that basis, the effect of the relative phase and strength, and the frequency difference of two carrier frequencies on multipactor threshold are analyzed to achieve performance optimization. The results indicate that additional carrier frequency may increase power transmission capacity of high-power dielectric window.","PeriodicalId":170853,"journal":{"name":"2020 IEEE 21st International Conference on Vacuum Electronics (IVEC)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121364366","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
Kinetic Analysis of Two Dimensional Cyclotron Maser with Single Gratings 单光栅二维回旋脉泽的动力学分析
2020 IEEE 21st International Conference on Vacuum Electronics (IVEC) Pub Date : 2020-10-19 DOI: 10.1109/IVEC45766.2020.9520475
Xiaofei Li, Ding Zhao, Q. Xue, Yidong Xiang
{"title":"Kinetic Analysis of Two Dimensional Cyclotron Maser with Single Gratings","authors":"Xiaofei Li, Ding Zhao, Q. Xue, Yidong Xiang","doi":"10.1109/IVEC45766.2020.9520475","DOIUrl":"https://doi.org/10.1109/IVEC45766.2020.9520475","url":null,"abstract":"In this paper, the TE mode dispersion relation of the two dimensional sheet beam cyclotron maser with single gratings is obtained by the kinetic method By numerical calculations, the effects of the structure parameters and the beam state on the growth rate are analyzed. As the high-order mode in the two dimensional single grating waveguide, the TE mode has the value to be investigated and the method is meaningful in the practice.","PeriodicalId":170853,"journal":{"name":"2020 IEEE 21st International Conference on Vacuum Electronics (IVEC)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132357604","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
A Large Bandwidth Double-layer Asymmetric Planar Microstrip Line Ka Band Traveling Wave Tube 大带宽双层非对称平面微带线Ka波段行波管
2020 IEEE 21st International Conference on Vacuum Electronics (IVEC) Pub Date : 2020-10-19 DOI: 10.1109/IVEC45766.2020.9520553
Wenchen Xiang, Ningfeng Bai, Xiaohan Sun, P. Pan, Jun Cai, Jinjun Feng, Yang Xie, W. Hong
{"title":"A Large Bandwidth Double-layer Asymmetric Planar Microstrip Line Ka Band Traveling Wave Tube","authors":"Wenchen Xiang, Ningfeng Bai, Xiaohan Sun, P. Pan, Jun Cai, Jinjun Feng, Yang Xie, W. Hong","doi":"10.1109/IVEC45766.2020.9520553","DOIUrl":"https://doi.org/10.1109/IVEC45766.2020.9520553","url":null,"abstract":"We present a double-layer asymmetric microstrip line slow wave structure (ADL MML-SWS) amplifies dual band signals at Ka-band this paper. This ADL MML-SWS has two signals at the same time, which can be excited by two electron beams. The center frequency of the low-band signal is 30 GHz and the center of high-band signal is 38 GHz. At 30GHz, the output power is 28.125w, with a gain of 37.5dB, and at 38GHz, the output power is 30.03w, with a gain of 37.8dB. The structure has a wide bandwidth, covering the entire Ka-band of 27GHz42GHz, and the gain in the entire band is nearly constant, varies in 2 dB.","PeriodicalId":170853,"journal":{"name":"2020 IEEE 21st International Conference on Vacuum Electronics (IVEC)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128079129","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 analysis of a Tunable Tapered Metallic Baffle TM01 to TE11 HPM Mode Converter 可调谐锥形金属挡板TM01 - TE11 HPM模式转换器的设计分析
2020 IEEE 21st International Conference on Vacuum Electronics (IVEC) Pub Date : 2020-10-19 DOI: 10.1109/IVEC45766.2020.9520457
Vikram Kumar, P. K. Jain
{"title":"Design analysis of a Tunable Tapered Metallic Baffle TM01 to TE11 HPM Mode Converter","authors":"Vikram Kumar, P. K. Jain","doi":"10.1109/IVEC45766.2020.9520457","DOIUrl":"https://doi.org/10.1109/IVEC45766.2020.9520457","url":null,"abstract":"Tapered metallic baffle mode converter for TM01 to TE11 mode has been presented. Using a triangular axially movable baffle, frequency tuning has been acheived. Conversion efficiency more than 98% at 2 GHz whereas more than 93% at 2.32 GHz, has been achieved and this enables to choose the mode converter frequency of operation accordingly. Mode converter RF beam stability has also been improved by adding a coaxial section at its output end. The proposed mode converter is an all metal structure, light in weight, higher in return loss, stable output beam and with frequency tunability feature; suitable for HPM system application.","PeriodicalId":170853,"journal":{"name":"2020 IEEE 21st International Conference on Vacuum Electronics (IVEC)","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133315600","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
Stabilization of Phase and Frequency of an S-Band Magnetron by Injection Locking 注入锁相法稳定s波段磁控管的相位和频率
2020 IEEE 21st International Conference on Vacuum Electronics (IVEC) Pub Date : 2020-10-19 DOI: 10.1109/IVEC45766.2020.9520523
Seong‐Tae Han, Dokyun Kim, Jong-Soo Kim, Jong‐Ryul Yang
{"title":"Stabilization of Phase and Frequency of an S-Band Magnetron by Injection Locking","authors":"Seong‐Tae Han, Dokyun Kim, Jong-Soo Kim, Jong‐Ryul Yang","doi":"10.1109/IVEC45766.2020.9520523","DOIUrl":"https://doi.org/10.1109/IVEC45766.2020.9520523","url":null,"abstract":"We demonstrated feasibility of magnetron as a promising candidate for the microwave power units constituting a phased array system which enables long distance wireless power transfer, by stabilizing phase and frequency of an S-band magnetron.","PeriodicalId":170853,"journal":{"name":"2020 IEEE 21st International Conference on Vacuum Electronics (IVEC)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130312023","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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