发布求助
文献互助 智能选刊 最新文献

2021 22nd International Vacuum Electronics Conference (IVEC)最新文献

筛选
英文 中文
Design and Experiment of a 300 GHz Folded Waveguide Traveling-Wave Tube 300 GHz折叠波导行波管的设计与实验
2021 22nd International Vacuum Electronics Conference (IVEC) Pub Date : 2021-04-27 DOI: 10.1109/IVEC51707.2021.9722543
Wonjin Choi, E. Choi, I. Lee, Jinwoo Shin
{"title":"Design and Experiment of a 300 GHz Folded Waveguide Traveling-Wave Tube","authors":"Wonjin Choi, E. Choi, I. Lee, Jinwoo Shin","doi":"10.1109/IVEC51707.2021.9722543","DOIUrl":"https://doi.org/10.1109/IVEC51707.2021.9722543","url":null,"abstract":"The design and experimental results of a 300 GHz folded waveguide traveling-wave tube (TWT) are presented. The folded waveguide was designed for operation with a 10.8 kV electron beam and fabricated using a nano-CNC machine. From the simulation results the gain of the designed TWT is approximately 35 dB. Sever wedges were designed and fabricated using Ceradyne Ceralloy 137CD-1 which was tested using quasi-optical measurement system. The pillbox type RF window was designed, fabricated, and tested. The performance of the electron gun was evaluated; beam current is higher than 100 mA at beam voltage of 11 kV. More experiments are under progress.","PeriodicalId":250593,"journal":{"name":"2021 22nd International Vacuum Electronics Conference (IVEC)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114570483","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 on a 6-18GHz High Power Helix Traveling-Wave Tube 6-18GHz大功率螺旋行波管的研究
2021 22nd International Vacuum Electronics Conference (IVEC) Pub Date : 2021-04-27 DOI: 10.1109/IVEC51707.2021.9722443
Wenbin Zhang, Jin Xu, H. Yin, Yanyu Wei, Lingna Yue, Wenxiang Wang
{"title":"Research on a 6-18GHz High Power Helix Traveling-Wave Tube","authors":"Wenbin Zhang, Jin Xu, H. Yin, Yanyu Wei, Lingna Yue, Wenxiang Wang","doi":"10.1109/IVEC51707.2021.9722443","DOIUrl":"https://doi.org/10.1109/IVEC51707.2021.9722443","url":null,"abstract":"A helix traveling wave tube(TWT) with a support rod embedded in a metal block operating at 6–18 GHz is proposed in this paper. The pitch and the radius of the helix are gradually changed or jumped to suppress the second harmonic and obtain high power output. The output power of the high-power helix TWT can be more than 5 kW, except for the sharp decrease at 6 GHz that reaches 3.59 kW.","PeriodicalId":250593,"journal":{"name":"2021 22nd International Vacuum Electronics Conference (IVEC)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114765408","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 study on the formation of second virtual cathode by using different material floating zone plate inside drift tube region 漂移管区域内不同材料浮动带板形成第二虚阴极的数值研究
2021 22nd International Vacuum Electronics Conference (IVEC) Pub Date : 2021-04-27 DOI: 10.1109/IVEC51707.2021.9722380
Sohail Mumtaz, Shaik Abdul Munnaf, E. Choi
{"title":"Numerical study on the formation of second virtual cathode by using different material floating zone plate inside drift tube region","authors":"Sohail Mumtaz, Shaik Abdul Munnaf, E. Choi","doi":"10.1109/IVEC51707.2021.9722380","DOIUrl":"https://doi.org/10.1109/IVEC51707.2021.9722380","url":null,"abstract":"In this study, a particle-in-cell simulation was carried out on an axial vircator by using MAGIC. A second virtual cathode (VC2) was formulated by using the escaping electrons from traditional VC1 as a wall charge accumulated at the floating zone plate designed at 3.42 GHz. The material of the opaque zones was changed to copper, aluminum, and glass to form a VC2 and power enhancement. The opaque zones with aluminum and copper behave as an obstacle at the new frequency by VC2 for the propagation of the electromagnetic wave. While the opaque zones with insulating material (glass) also contributed to forming VC2 and suitable for the power enhancement by VC2 at the new frequencies. These results are useful for a real expeiment.","PeriodicalId":250593,"journal":{"name":"2021 22nd International Vacuum Electronics Conference (IVEC)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128222696","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
Relativistic Sub-THz Surface-Wave Oscillators Based on Oversized Cylindrical Waveguides (Quasi-Optical Theory) 基于超大圆柱波导的相对论亚太赫兹表面波振荡器(准光学理论)
2021 22nd International Vacuum Electronics Conference (IVEC) Pub Date : 2021-04-27 DOI: 10.1109/IVEC51707.2021.9722472
A. Malkin, I. Zheleznov, A. Sergeev, N. Ginzburg
{"title":"Relativistic Sub-THz Surface-Wave Oscillators Based on Oversized Cylindrical Waveguides (Quasi-Optical Theory)","authors":"A. Malkin, I. Zheleznov, A. Sergeev, N. Ginzburg","doi":"10.1109/IVEC51707.2021.9722472","DOIUrl":"https://doi.org/10.1109/IVEC51707.2021.9722472","url":null,"abstract":"- Within the quasi-optical approach, we investigate the dynamic of excitation of azimuthally-symmetric TM modes in a relativistic surface-wave oscillator (SWO) with oversized cylindrical waveguide. We outline the two operation regimes, namely, the n-mode excitation regime and the regime of backward surface wave oscillator. Based on theoretical considerations, we demonstrate the viability of practical realization of relativistic SWS with a power level of up to 100 MW in the sub-THz wavelength band.","PeriodicalId":250593,"journal":{"name":"2021 22nd International Vacuum Electronics Conference (IVEC)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134022495","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
Investigation of 140GHz double-grating extended interaction oscillator 140GHz双光栅扩展相互作用振荡器的研究
2021 22nd International Vacuum Electronics Conference (IVEC) Pub Date : 2021-04-27 DOI: 10.1109/IVEC51707.2021.9722383
Zhenzhen Sun, G. Guo, X. Niu
{"title":"Investigation of 140GHz double-grating extended interaction oscillator","authors":"Zhenzhen Sun, G. Guo, X. Niu","doi":"10.1109/IVEC51707.2021.9722383","DOIUrl":"https://doi.org/10.1109/IVEC51707.2021.9722383","url":null,"abstract":"In this paper, A 140GHz double-grating sheet beam extended interaction oscillator (SB-EIO) is designed. The high- frequency characteristics and transmission characteristics are calculated by a three-dimensional electromagnetic simulation software. The resonant cavity structure is simulated by using the eigenmode solver. And the electric-field distribution satisfies TM110 mode. From the cold cavity simulation results, we can draw the dispersion curve by observing the electric-field distribution under different working modes of the single-period structure. And then, the working frequency of the hot cavity is 143 GHz by combining the voltage line and the dispersion curve's ordinate at 2π working point. With voltage 43.7 kV and current 2.5 A, it can be find that the peak power of output port is 30.11kW, and the beam-wave interaction efficiency is 27.56%.","PeriodicalId":250593,"journal":{"name":"2021 22nd International Vacuum Electronics Conference (IVEC)","volume":"88 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132810205","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
Oversized Waveguide Circular Polarizer for High Power Transmission System 大功率传输系统的超大波导圆偏振器
2021 22nd International Vacuum Electronics Conference (IVEC) Pub Date : 2021-04-27 DOI: 10.1109/IVEC51707.2021.9722527
Ran Zhang, Haojun Yuan, Zewei Wu, Minxing Wang, Youlei Pu, Yong Luo
{"title":"Oversized Waveguide Circular Polarizer for High Power Transmission System","authors":"Ran Zhang, Haojun Yuan, Zewei Wu, Minxing Wang, Youlei Pu, Yong Luo","doi":"10.1109/IVEC51707.2021.9722527","DOIUrl":"https://doi.org/10.1109/IVEC51707.2021.9722527","url":null,"abstract":"In this article, a corrugated square waveguide circular polarizer operating from 7 GHz to 10 GHz for gyrotron traveling wave tube application system is proposed. In order to obtain a flat phase difference between two orthogonal linear polarizations, an oversized quasi-square waveguide with corrugations is used. By optimizing the size of the corrugation and the dimension of the waveguide, the different effects on two linear polarizations are obtained, which means the circular polarized wave can be achieved in a broadband. The results show that in the frequency range from 7 GHz to 10 GHz, the relative bandwidth is about 35.3%. The phase difference is about $90pm 2$ degree.","PeriodicalId":250593,"journal":{"name":"2021 22nd International Vacuum Electronics Conference (IVEC)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125836658","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
Demonstration of a metamaterial absorber for Folded Waveguide Slow Wave Structure 折叠波导慢波结构的超材料吸收器的演示
2021 22nd International Vacuum Electronics Conference (IVEC) Pub Date : 2021-04-27 DOI: 10.1109/IVEC51707.2021.9722509
Jingxuan Shen, Ningfeng Bai, Xiaohan Sun, Xuemei Cao, Xiaoran Zhang, Meng Sun
{"title":"Demonstration of a metamaterial absorber for Folded Waveguide Slow Wave Structure","authors":"Jingxuan Shen, Ningfeng Bai, Xiaohan Sun, Xuemei Cao, Xiaoran Zhang, Meng Sun","doi":"10.1109/IVEC51707.2021.9722509","DOIUrl":"https://doi.org/10.1109/IVEC51707.2021.9722509","url":null,"abstract":"This paper demonstrates the experiment of a metamaterial absorber with lumped resistances, which can be used as sever for folded waveguide (FWG) slow wave structure (SWS). The experimental results fit well with the simulation results, and validate the theory we proposed in the previous work.","PeriodicalId":250593,"journal":{"name":"2021 22nd International Vacuum Electronics Conference (IVEC)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124859827","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
Circuit Design of a Broadband W-Band Extended Interaction Klystron 宽带w波段扩展交互速调管的电路设计
2021 22nd International Vacuum Electronics Conference (IVEC) Pub Date : 2021-04-27 DOI: 10.1109/IVEC51707.2021.9722551
Shirong Wang, Lingna Yue, Ziqing Bai, Jin Xu, H. Yin, G. Zhao, Wenxiang Wang, Yanyu Wei
{"title":"Circuit Design of a Broadband W-Band Extended Interaction Klystron","authors":"Shirong Wang, Lingna Yue, Ziqing Bai, Jin Xu, H. Yin, G. Zhao, Wenxiang Wang, Yanyu Wei","doi":"10.1109/IVEC51707.2021.9722551","DOIUrl":"https://doi.org/10.1109/IVEC51707.2021.9722551","url":null,"abstract":"A novel circuit with broad bandwidth is designed for the W-band Extended Interaction Klystron (EIK) in this paper. The three operating modes ($pi$ mode, $pi+1$ mode, $pi+2$ mode) with a certain frequency interval among them are analyzed, which results in expanding bandwidth of the circuit. The circuit is powered under condition of a 2A, 2. 7kV pencil beam with 0.2mm radius and 11mm EIK circuit length, whose simulation results predict that the saturated output power is 91 0W and 3dB bandwidth is greater than 750 MHz.","PeriodicalId":250593,"journal":{"name":"2021 22nd International Vacuum Electronics Conference (IVEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125214410","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 Ultra-broadband Metamaterial Absorber Based on the Square Split Ring 基于方形开口环的超宽带超材料吸波器
2021 22nd International Vacuum Electronics Conference (IVEC) Pub Date : 2021-04-27 DOI: 10.1109/IVEC51707.2021.9722506
Zhouqijun Li, Zheng Wen, Zhi-qiang Zhang, Jirun Luo
{"title":"An Ultra-broadband Metamaterial Absorber Based on the Square Split Ring","authors":"Zhouqijun Li, Zheng Wen, Zhi-qiang Zhang, Jirun Luo","doi":"10.1109/IVEC51707.2021.9722506","DOIUrl":"https://doi.org/10.1109/IVEC51707.2021.9722506","url":null,"abstract":"An ultra-broadband metamaterial absorber (MA) is proposed in this paper. It is composed of a three-layer structure: one dielectric medium between two metal inserts. The simulation result shows that the bandwidth of this metamaterial absorber is about 55 GHz from 91.13 GHz to 146.13 GHz when the absorptivity achieves 0.99. The relative bandwidth ratio is 46%. This MA can be easily fabricated by surface micro-machining technology.","PeriodicalId":250593,"journal":{"name":"2021 22nd International Vacuum Electronics Conference (IVEC)","volume":"1 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124185845","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
Driving a Magnetically Insulated Line Oscillator with a Linear Transformer Driver 用线性变压器驱动器驱动磁绝缘线振荡器
2021 22nd International Vacuum Electronics Conference (IVEC) Pub Date : 2021-04-27 DOI: 10.1109/IVEC51707.2021.9722449
N. Jordan, B. Sporer, D. Packard, R. Shapovalov, R. Gilgenbach, R. Mcbride
{"title":"Driving a Magnetically Insulated Line Oscillator with a Linear Transformer Driver","authors":"N. Jordan, B. Sporer, D. Packard, R. Shapovalov, R. Gilgenbach, R. Mcbride","doi":"10.1109/IVEC51707.2021.9722449","DOIUrl":"https://doi.org/10.1109/IVEC51707.2021.9722449","url":null,"abstract":"The Magnetically Insulated Line Oscillator (MILO) is a crossed-field device which uses a large (10s of kA) axial current to produce an azimuthal magnetic field. Coupled with a multi-cavity slow wave structure, this beam can produce microwave powers on the order of gigawatts. As a high-current, low-impedance device, the MILO may be profitably paired with a compact pulse power generator such as a Linear Transformer Driver (LTD). This paper presents results of simulations and experiments with this configuration.","PeriodicalId":250593,"journal":{"name":"2021 22nd International Vacuum Electronics Conference (IVEC)","volume":"111 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130201236","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
首页 上一页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信