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

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Photonic crystals assisted slow wave structure for THz vacuum devices 光子晶体辅助太赫兹真空器件的慢波结构
2013 IEEE 14th International Vacuum Electronics Conference (IVEC) Pub Date : 2013-05-21 DOI: 10.1109/IVEC.2013.6571039
R. Letizia, C. Paoloni, M. Mineo, D. Pinto
{"title":"Photonic crystals assisted slow wave structure for THz vacuum devices","authors":"R. Letizia, C. Paoloni, M. Mineo, D. Pinto","doi":"10.1109/IVEC.2013.6571039","DOIUrl":"https://doi.org/10.1109/IVEC.2013.6571039","url":null,"abstract":"A corrugated waveguide with Photonic Crystal (PhC) wall is proposed for effective beam-wave interaction with wide sheet beams at terahertz frequency. Compared to conventional corrugated waveguides, PhC technology provides efficient field confinement in a naturally open structure which allows for improved level of vacuum pumping alleviating the typical assembling issues.","PeriodicalId":283300,"journal":{"name":"2013 IEEE 14th International Vacuum Electronics Conference (IVEC)","volume":"1 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":"132953302","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
SUNRAY-1D and SUNRAY-2.5D codes for large-signal analysis of a space TWT 用于空间行波管大信号分析的SUNRAY-1D和SUNRAY-2.5D编码
2013 IEEE 14th International Vacuum Electronics Conference (IVEC) Pub Date : 2013-05-21 DOI: 10.1109/IVEC.2013.6570921
V. Srivastava
{"title":"SUNRAY-1D and SUNRAY-2.5D codes for large-signal analysis of a space TWT","authors":"V. Srivastava","doi":"10.1109/IVEC.2013.6570921","DOIUrl":"https://doi.org/10.1109/IVEC.2013.6570921","url":null,"abstract":"One-dimensional (SUNRAY-1D), and two and half dimensional (SUNRAY-2.5D) codes are developed for accurate, fast and reliable multi-signal large signal analysis of a complete helix-type space TWT. Detailed beam and rf field parameters including inter-modulation components and higher-order time harmonics are simulated accurately for a high efficiency space TWT. The spent electron beam data of SUNRAY-2.5D code is used successfully for design of beam refocusing section and multi-stage depressed collectors for various space TWTs. Space TWTs of different frequencies (C-band, Ku-band, Ka-band and W-band), and of different power levels have been designed successfully.","PeriodicalId":283300,"journal":{"name":"2013 IEEE 14th International Vacuum Electronics Conference (IVEC)","volume":"20 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":"116251948","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: 7
Demonstration of a high power, wideband 220 GHz serpentine waveguide amplifier fabricated by UV-LIGA 用UV-LIGA制作的高功率、宽带220 GHz蛇形波导放大器的演示
2013 IEEE 14th International Vacuum Electronics Conference (IVEC) Pub Date : 2013-05-21 DOI: 10.1109/IVEC.2013.6571005
C. Joye, A. Cook, J. Calame, D. Abe, K. Nguyen, E. Wright, A. Vlasov, I. Chernyavskiy, Takuji Kimura, B. Levush
{"title":"Demonstration of a high power, wideband 220 GHz serpentine waveguide amplifier fabricated by UV-LIGA","authors":"C. Joye, A. Cook, J. Calame, D. Abe, K. Nguyen, E. Wright, A. Vlasov, I. Chernyavskiy, Takuji Kimura, B. Levush","doi":"10.1109/IVEC.2013.6571005","DOIUrl":"https://doi.org/10.1109/IVEC.2013.6571005","url":null,"abstract":"We present the hot test results of a 220 GHz, serpentine waveguide vacuum electron amplifier showcasing a novel embedded monofilament microfabrication technique based on UV-LIGA. The instantaneous operating bandwidth exceeds 15 GHz and the small signal gain of the circuit is over 14 dB. By varying the voltage slightly, an operating bandwidth of almost 40 GHz is realizable with a minimum circuit gain of 7 dB across the band. A maximum power of just over 60 W was obtained at the output flange of the device, corresponding to a power of almost 80 W generated in the circuit.","PeriodicalId":283300,"journal":{"name":"2013 IEEE 14th International Vacuum Electronics Conference (IVEC)","volume":"21 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":"122142722","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: 24
220 GHz power amplifier testing at Northrop Grumman 在诺斯罗普·格鲁曼公司进行220 GHz功率放大器测试
2013 IEEE 14th International Vacuum Electronics Conference (IVEC) Pub Date : 2013-05-21 DOI: 10.1109/IVEC.2013.6570961
K. Kreischer, J. Tucek, M. Basten, D. Gallagher
{"title":"220 GHz power amplifier testing at Northrop Grumman","authors":"K. Kreischer, J. Tucek, M. Basten, D. Gallagher","doi":"10.1109/IVEC.2013.6570961","DOIUrl":"https://doi.org/10.1109/IVEC.2013.6570961","url":null,"abstract":"A 220 GHz power amplifier has been demonstrated as part of the DARPA HiFIVE program. This amplifier is based on a folded waveguide circuit, and operates at 19 kV and 250 mA. Short pulse tests resulted in 56 W at 214 GHz and a 5.0 GHz bandwidth.","PeriodicalId":283300,"journal":{"name":"2013 IEEE 14th International Vacuum Electronics Conference (IVEC)","volume":"10 1 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":"124496504","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: 38
Status of high power gyrotron development in JAEA 日本原子能机构大功率回旋管发展现状
2013 IEEE 14th International Vacuum Electronics Conference (IVEC) Pub Date : 2013-05-21 DOI: 10.1109/IVEC.2013.6571137
K. Sakamoto, K. Kajiwara, Y. Oda, Kazuo Hayashi, Koji Takahashi, Takayuki Kobayashi, S. Moriyama
{"title":"Status of high power gyrotron development in JAEA","authors":"K. Sakamoto, K. Kajiwara, Y. Oda, Kazuo Hayashi, Koji Takahashi, Takayuki Kobayashi, S. Moriyama","doi":"10.1109/IVEC.2013.6571137","DOIUrl":"https://doi.org/10.1109/IVEC.2013.6571137","url":null,"abstract":"Recent results of a multi-frequency gyrotron and a high frequency power modulation experiment using 170 GHz gyrotron are reported. Three frequency oscillations and their Gaussian beam outputs are demonstrated at 170 GHz, 137 GHz and 104 GHz. At present, 0.9 MW/ 70 sec, 1.1 MW/ 5 sec were obtained at 170 GHz. An experiment of 203 GHz oscillation will be conducted from April 2013 in addition to further power increase and pulse extension. In parallel, 5 kHz full power modulation was demonstrated by an anode voltage modulation using a double anode switching.","PeriodicalId":283300,"journal":{"name":"2013 IEEE 14th International Vacuum Electronics Conference (IVEC)","volume":"163 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":"121257051","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: 15
Microfocus X-ray tube based on CNT array 基于碳纳米管阵列的微聚焦x射线管
2013 IEEE 14th International Vacuum Electronics Conference (IVEC) Pub Date : 2013-05-21 DOI: 10.1109/IVEC.2013.6570980
Zexiang Chen, Zhihui Wang, Tianyong Hu, Yugong Zeng, N. Tang
{"title":"Microfocus X-ray tube based on CNT array","authors":"Zexiang Chen, Zhihui Wang, Tianyong Hu, Yugong Zeng, N. Tang","doi":"10.1109/IVEC.2013.6570980","DOIUrl":"https://doi.org/10.1109/IVEC.2013.6570980","url":null,"abstract":"A macro-focus X-ray tube with CNT emitters was successfully developed. An anode current of 1.15mA was collected when the copper grid gate voltage was 2.7kV. A very small x-ray focal spot size with less than 39μm can be achieved, which could potentially produce very high special resolution X-ray image.","PeriodicalId":283300,"journal":{"name":"2013 IEEE 14th International Vacuum Electronics Conference (IVEC)","volume":"54 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":"122696753","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
Modeling of the NRL G-Band TWT amplifier using the CHRISTINE and TESLA simulation codes 利用CHRISTINE和TESLA仿真代码对NRL g波段行波t放大器进行建模
2013 IEEE 14th International Vacuum Electronics Conference (IVEC) Pub Date : 2013-05-21 DOI: 10.1109/IVEC.2013.6571086
A. Vlasov, I. Chernyavskiy, C. Joye, A. Cook, J. Calame, B. Levush, D. Chernin, T. Antonsen, K. Nguyen
{"title":"Modeling of the NRL G-Band TWT amplifier using the CHRISTINE and TESLA simulation codes","authors":"A. Vlasov, I. Chernyavskiy, C. Joye, A. Cook, J. Calame, B. Levush, D. Chernin, T. Antonsen, K. Nguyen","doi":"10.1109/IVEC.2013.6571086","DOIUrl":"https://doi.org/10.1109/IVEC.2013.6571086","url":null,"abstract":"Comparisons between predictions of the NRL large signal codes CHRISTINE and TESLA-FW and measurements of small signal gain of NRL's G-Band serpentine waveguide TWT are presented. Results of a sensitivity study of the effects on gain of the circuit dispersion allow us to identify the most critical physical circuit dimensions for TWT design and to quantify required circuit fabrication tolerances.","PeriodicalId":283300,"journal":{"name":"2013 IEEE 14th International Vacuum Electronics Conference (IVEC)","volume":"102 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":"124150197","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: 9
A 200W high power MPM 200W大功率MPM
2013 IEEE 14th International Vacuum Electronics Conference (IVEC) Pub Date : 2013-05-21 DOI: 10.1109/IVEC.2013.6571092
N. Brown, D. Chan, R. Watkins, D. Springmann, A. Donald, R. Duggal, T. Schoemehl
{"title":"A 200W high power MPM","authors":"N. Brown, D. Chan, R. Watkins, D. Springmann, A. Donald, R. Duggal, T. Schoemehl","doi":"10.1109/IVEC.2013.6571092","DOIUrl":"https://doi.org/10.1109/IVEC.2013.6571092","url":null,"abstract":"L-3 EDD has developed a high power MPM capable of producing greater than 200W of output power from 6.5 to 18 GHz. The MPM includes a high power mini-TWT paired with a state of the art power converter' and driver SSA.","PeriodicalId":283300,"journal":{"name":"2013 IEEE 14th International Vacuum Electronics Conference (IVEC)","volume":"71 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":"123038585","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
Performance degradation simulation for M-type cathode based on ion bombardment 基于离子轰击的m型阴极性能退化模拟
2013 IEEE 14th International Vacuum Electronics Conference (IVEC) Pub Date : 2013-05-21 DOI: 10.1109/IVEC.2013.6571103
X. Shi, Hehong Fan, F. Song, Xingqun Zhao, S. Wan, Xiaohan Sun
{"title":"Performance degradation simulation for M-type cathode based on ion bombardment","authors":"X. Shi, Hehong Fan, F. Song, Xingqun Zhao, S. Wan, Xiaohan Sun","doi":"10.1109/IVEC.2013.6571103","DOIUrl":"https://doi.org/10.1109/IVEC.2013.6571103","url":null,"abstract":"Simulation of M-type cathode performance degradation is studied based on ion bombardment with interdiffusion effect considered. Sputtered volume, sputter distribution and ion spot occurrence time can be estimated, with estimated sputtered volume close to former researches. For M-type Re-coated cathode with 300nm-thick film, ion spots were estimated to appear after 2.06×105 h's working.","PeriodicalId":283300,"journal":{"name":"2013 IEEE 14th International Vacuum Electronics Conference (IVEC)","volume":"57 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":"123101211","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
Development of high-power broadband Ka-band cascaded-TWT 大功率宽带ka波段级联行波管的研制
2013 IEEE 14th International Vacuum Electronics Conference (IVEC) Pub Date : 2013-05-21 DOI: 10.1109/IVEC.2013.6571118
K. Nguyen, D. Pershing, J. Pasour, L. Ludeking, E. Wright, R. Myers, A. Vlasov, I. Chernyavskiy, D. Abe, B. Levush, J. Petillo, D. Chernin
{"title":"Development of high-power broadband Ka-band cascaded-TWT","authors":"K. Nguyen, D. Pershing, J. Pasour, L. Ludeking, E. Wright, R. Myers, A. Vlasov, I. Chernyavskiy, D. Abe, B. Levush, J. Petillo, D. Chernin","doi":"10.1109/IVEC.2013.6571118","DOIUrl":"https://doi.org/10.1109/IVEC.2013.6571118","url":null,"abstract":"Progress on the demonstration of a high power broadband three-beam Ka-band cascaded traveling-wave tube (TWT) prototype is presented. The amplifier will be driven by an electron gun (0.6 A × 3, 20 kV) adapted from our 18-beam multiple-beam klystron gun design. Both serpentine and folded-waveguide versions of the cascaded-TWT have been evaluated. The expected peak RF output power is 4.5 kW with 100 W of drive power at a frequency of 30 GHz. The minimum output power is 3 kW over a 5 GHz frequency band (4 kW over > 2 GHz).","PeriodicalId":283300,"journal":{"name":"2013 IEEE 14th International Vacuum Electronics Conference (IVEC)","volume":"28 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":"115531912","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: 9
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