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2016 IEEE International Vacuum Electronics Conference (IVEC)最新文献

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Microfabricated 233 GHz traveling wave amplifier 微加工233ghz行波放大器
2016 IEEE International Vacuum Electronics Conference (IVEC) Pub Date : 2016-04-19 DOI: 10.1109/IVEC.2016.7561804
C. Joye, A. Cook, J. Calame, K. Nguyen, E. Wright, B. Albright, D. Abe, J. Atkinson, Takuji Kimura
{"title":"Microfabricated 233 GHz traveling wave amplifier","authors":"C. Joye, A. Cook, J. Calame, K. Nguyen, E. Wright, B. Albright, D. Abe, J. Atkinson, Takuji Kimura","doi":"10.1109/IVEC.2016.7561804","DOIUrl":"https://doi.org/10.1109/IVEC.2016.7561804","url":null,"abstract":"We present development progress for a 233 GHz hybrid serpentine waveguide TWT amplifier employing microfabrication techniques based on UV-LIGA. Maximum output power from the circuit is predicted to exceed 140 W from a 20 kV, 124 mA electron beam. Updates include progress of the circuit microfabrication and testing, window tuning, and electron gun.","PeriodicalId":361429,"journal":{"name":"2016 IEEE International Vacuum Electronics Conference (IVEC)","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134113456","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
Amplification of picosecond pulses with a photonic-band-gap gyro-TWT 用光子带隙陀螺行波管放大皮秒脉冲
2016 IEEE International Vacuum Electronics Conference (IVEC) Pub Date : 2016-04-19 DOI: 10.1109/IVEC.2016.7561798
E. Nanni, S. Jawla, S. Lewis, M. Shapiro, R. Temkin
{"title":"Amplification of picosecond pulses with a photonic-band-gap gyro-TWT","authors":"E. Nanni, S. Jawla, S. Lewis, M. Shapiro, R. Temkin","doi":"10.1109/IVEC.2016.7561798","DOIUrl":"https://doi.org/10.1109/IVEC.2016.7561798","url":null,"abstract":"We report the amplification of 250 GHz pulses as short as 150 ps without observation of pulse broadening using a photonic-band-gap (PBG) gyrotron traveling-wave-amplifier. The gyrotron amplifier operates with 38 dB of device gain and 8 GHz of instantaneous bandwidth. The operational bandwidth of the amplifier can be tuned over 16 GHz by adjusting the operating voltage of the electron beam and the magnetic field. The amplifier uses a 30 cm PBG interaction circuit to confine the desired TE03 operating mode while suppressing lower order modes which can result in undesired oscillations. The circuit gain is >55 dB for a beam voltage of 23 kV and a current of 700 mA. These results demonstrate the wide bandwidths and high gain achievable with gyrotron amplifiers.","PeriodicalId":361429,"journal":{"name":"2016 IEEE International Vacuum Electronics Conference (IVEC)","volume":"365 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132863913","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: 4
A micro-strip millimeter wave predistortion linearizer with temperature compensation 带温度补偿的微带毫米波预失真线性化器
2016 IEEE International Vacuum Electronics Conference (IVEC) Pub Date : 2016-04-19 DOI: 10.1109/IVEC.2016.7561906
Yu Chong-zhi, Hu Bo-xiong, Shang Xin-wen, Su Xiao-bao
{"title":"A micro-strip millimeter wave predistortion linearizer with temperature compensation","authors":"Yu Chong-zhi, Hu Bo-xiong, Shang Xin-wen, Su Xiao-bao","doi":"10.1109/IVEC.2016.7561906","DOIUrl":"https://doi.org/10.1109/IVEC.2016.7561906","url":null,"abstract":"Conventional micro-strip predistortion linearizers work at low band, need isolators to match the input and output and mostly lack of temperature compensation. This paper presents a micro-strip predistortion circuit which can obtain about 5dB and 50° gain and phase expansion at the same bias conditions at 29, 30, 31GHz without isolators at both input and output ports. The diodes in the circuit are parallel with negative temperature coefficient (NTC) thermal resistors.","PeriodicalId":361429,"journal":{"name":"2016 IEEE International Vacuum Electronics Conference (IVEC)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130592602","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 of sector-ring multiple beam electron gun for stable high-power klystron 用于稳定大功率速调管的扇形环多束电子枪设计
2016 IEEE International Vacuum Electronics Conference (IVEC) Pub Date : 2016-04-19 DOI: 10.1109/IVEC.2016.7561957
Fengying Lu, Rui Zhang, Yong Wang, Ke Li, Qiang Xu
{"title":"Design of sector-ring multiple beam electron gun for stable high-power klystron","authors":"Fengying Lu, Rui Zhang, Yong Wang, Ke Li, Qiang Xu","doi":"10.1109/IVEC.2016.7561957","DOIUrl":"https://doi.org/10.1109/IVEC.2016.7561957","url":null,"abstract":"A novel type klystron using sector-ring multiple beam (SRMB) is analyzed in this paper. The SRMB klystron is improved from the conventional multiple beam klystron (MBK) and annular beam klystron (ABK). It has the advantages of both of the two types. In this paper, the SRMB electron gun was simulated and analyzed using two different software, CST and CHIPIC. This paper gives the design of the SRMB electron gun. It's proved to be feasible.","PeriodicalId":361429,"journal":{"name":"2016 IEEE International Vacuum Electronics Conference (IVEC)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125934768","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 nano machining techniques to bridge the terahertz gap 纳米加工技术的发展，以弥补太赫兹间隙
2016 IEEE International Vacuum Electronics Conference (IVEC) Pub Date : 2016-04-19 DOI: 10.1109/IVEC.2016.7561802
Logan Himes, D. Gamzina, B. Popovic, R. Barchfeld, N. Luhmann
{"title":"Development of nano machining techniques to bridge the terahertz gap","authors":"Logan Himes, D. Gamzina, B. Popovic, R. Barchfeld, N. Luhmann","doi":"10.1109/IVEC.2016.7561802","DOIUrl":"https://doi.org/10.1109/IVEC.2016.7561802","url":null,"abstract":"Research conducted in parallel with the construction of various vacuum electronic devices, including a 220 GHz Sheet Beam Traveling Wave Tube (SBTWT), a 263 GHz SBTWT, and two 346 GHz Backward Wave Oscillators (BWOs), has demonstrated that data garnered from the manufacturing process helps improve the performance, reduce the time to build, and lower the cost of subsequent devices. The data collected from metrology, microscopy, and manufacturing control are also critical to improving future device builds and provide powerful insight into the nature of fabricating high performance vacuum electronics.","PeriodicalId":361429,"journal":{"name":"2016 IEEE International Vacuum Electronics Conference (IVEC)","volume":"186 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121081652","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
Quasi-pierce angle focusing electrode for a w-band sheet beam gun w波段板束枪的准穿透角聚焦电极
2016 IEEE International Vacuum Electronics Conference (IVEC) Pub Date : 2016-04-19 DOI: 10.1109/IVEC.2016.7561919
Tongli Ma, Ding Zhao, Zhaochuan Zhang
{"title":"Quasi-pierce angle focusing electrode for a w-band sheet beam gun","authors":"Tongli Ma, Ding Zhao, Zhaochuan Zhang","doi":"10.1109/IVEC.2016.7561919","DOIUrl":"https://doi.org/10.1109/IVEC.2016.7561919","url":null,"abstract":"This paper demonstrates a new design of a quasi-pierce angle focusing electrode (FE, in short) of a sheet beam electron gun. This scheme has been studied by the CST-PARTICLE studio. It indicates that a sheet beam gun with this new focus electrode can produce large beam current, high compression ratio, good laminarity and it is very convenient to adjust the width of electron beam just by changing the width of cathode and corresponding focusing electrode.","PeriodicalId":361429,"journal":{"name":"2016 IEEE International Vacuum Electronics Conference (IVEC)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121164781","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
High energy beam THz backward wave oscillator based on double corrugated waveguide 基于双波纹波导的高能束太赫兹反向波振荡器
2016 IEEE International Vacuum Electronics Conference (IVEC) Pub Date : 2016-04-19 DOI: 10.1109/IVEC.2016.7561911
Jun Zhang, C. Paoloni, R. Letizia, N. Luhmann, B. Popovic, Logan Himes, R. Barchfeld, D. Gamzina, Jinjun Feng, Li Li, P. Pan, Ye Tang, Fuhzi Zhang
{"title":"High energy beam THz backward wave oscillator based on double corrugated waveguide","authors":"Jun Zhang, C. Paoloni, R. Letizia, N. Luhmann, B. Popovic, Logan Himes, R. Barchfeld, D. Gamzina, Jinjun Feng, Li Li, P. Pan, Ye Tang, Fuhzi Zhang","doi":"10.1109/IVEC.2016.7561911","DOIUrl":"https://doi.org/10.1109/IVEC.2016.7561911","url":null,"abstract":"A new approach to realize THz BWOs relaxing the assembly challenge is presented. An international consortium including UC Davis, Beijing Vacuum Electronics Research Institute (BVERI), and Lancaster University is involved in the design and fabrication of 0.346 THz BWOs to replace the bulky FIR laser at the plasma diagnostic at the NSTX-U fusion device. The use of a highly energetic beam permit and a wide channel, double corrugated waveguide permit to achieve about 4 W of output power at 0.346 THz.","PeriodicalId":361429,"journal":{"name":"2016 IEEE International Vacuum Electronics Conference (IVEC)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116344781","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
UV-LIGA microfabrication for high frequency structures of a 220GHz TWT amplifier 220GHz行波管放大器高频结构的UV-LIGA微加工
2016 IEEE International Vacuum Electronics Conference (IVEC) Pub Date : 2016-04-19 DOI: 10.1109/IVEC.2016.7561803
Hanyan Li, Dong Li, Y. Hu, P. Pan, Tianyi Li, Jinjun Feng
{"title":"UV-LIGA microfabrication for high frequency structures of a 220GHz TWT amplifier","authors":"Hanyan Li, Dong Li, Y. Hu, P. Pan, Tianyi Li, Jinjun Feng","doi":"10.1109/IVEC.2016.7561803","DOIUrl":"https://doi.org/10.1109/IVEC.2016.7561803","url":null,"abstract":"In this paper, we fabricate copper high frequency structures for a 220GHz TWT amplifier using UV LIGA technology. The two halves have been assembled and bonded. The measurement results of the folded waveguide circuit show that the attenuation factor of the circuit is 240 dB/m.","PeriodicalId":361429,"journal":{"name":"2016 IEEE International Vacuum Electronics Conference (IVEC)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125791879","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
Electron gun and CVD diamond window for a 346 GHz sheet beam BWO 346 GHz薄板束BWO电子枪与CVD金刚石窗
2016 IEEE International Vacuum Electronics Conference (IVEC) Pub Date : 2016-04-19 DOI: 10.1109/IVEC.2016.7561835
B. Popovic, Yuan Zheng, Logan Himes, D. Gamzina, N. Luhmann, C. Paoloni, R. Letizia, Jinjun Feng, Ye Tang, Mengchao Gao, Fuzhi Zhang, Lingna Yue, Xiaopin Tang, Lu Ting
{"title":"Electron gun and CVD diamond window for a 346 GHz sheet beam BWO","authors":"B. Popovic, Yuan Zheng, Logan Himes, D. Gamzina, N. Luhmann, C. Paoloni, R. Letizia, Jinjun Feng, Ye Tang, Mengchao Gao, Fuzhi Zhang, Lingna Yue, Xiaopin Tang, Lu Ting","doi":"10.1109/IVEC.2016.7561835","DOIUrl":"https://doi.org/10.1109/IVEC.2016.7561835","url":null,"abstract":"A collaboration between UC Davis, Lancaster University, Beijing Vacuum Electronics Research Institute (BVERI), and the University of Electronic Science and Technology of China (UESTC) is developing a 346 GHz backward wave oscillator (BWO) for use as a source in plasma fusion diagnostics, medical, biological, and security imaging systems. Development of new electron gun optics that achieve almost 100% beam transmission based on particle-in-cell simulations is presented along with comparisons of the cold and hot beam performance. Also, a CVD diamond pillbox window design is presented. Additionally, the mechanical layout of the devices is being completed and prepared for fabrication.","PeriodicalId":361429,"journal":{"name":"2016 IEEE International Vacuum Electronics Conference (IVEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131910960","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
Space qualified, 150–300-watt K-band TWTA 空间合格，150 - 300瓦k波段TWTA
2016 IEEE International Vacuum Electronics Conference (IVEC) Pub Date : 2016-04-19 DOI: 10.1109/IVEC.2016.7561762
N. Robbins, W. Menninger, X. Zhai, D. Lewis
{"title":"Space qualified, 150–300-watt K-band TWTA","authors":"N. Robbins, W. Menninger, X. Zhai, D. Lewis","doi":"10.1109/IVEC.2016.7561762","DOIUrl":"https://doi.org/10.1109/IVEC.2016.7561762","url":null,"abstract":"L-3 Communications Electron Technologies Inc., (L-3 ETI), has completed space-flight qualification for a 150-300-watt K-band traveling-wave tube amplifier (TWTA) capable of over 3 GHz instantaneous bandwidth and being configurable for either conduction cooling or direct radiating. This paper will discuss the TWTA performance, manufacturing and flight qualification test results.","PeriodicalId":361429,"journal":{"name":"2016 IEEE International Vacuum Electronics Conference (IVEC)","volume":"144 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133892440","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
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