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The Mini-RF Microwave Power Module for the Lunar Reconnaissance Orbiter: Status update 用于月球侦察轨道器的微型射频微波功率模块:状态更新
IVEC 2012 Pub Date : 2012-04-24 DOI: 10.1109/IVEC.2012.6262192
M. Basten, J. Duthie, A. Ferek, D. LaFortune, J. Perkins, J. Rein
{"title":"The Mini-RF Microwave Power Module for the Lunar Reconnaissance Orbiter: Status update","authors":"M. Basten, J. Duthie, A. Ferek, D. LaFortune, J. Perkins, J. Rein","doi":"10.1109/IVEC.2012.6262192","DOIUrl":"https://doi.org/10.1109/IVEC.2012.6262192","url":null,"abstract":"Launched in June 2009 as part of the NASA Lunar Reconnaissance Orbiter (LRO) mission, the Mini-RF Microwave Power Module (MPM) exceeded its original operational goals in providing multifunction capability in S and X band for synthetic aperture radar and communications roles. The compact MPM-based transmitter was an enabling component in demonstrating that a small, lightweight synthetic aperture radar instrument can be developed and integrated as part of larger multifunction spacecraft mission.","PeriodicalId":324211,"journal":{"name":"IVEC 2012","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128806322","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
Optimization of couplers of TWT using TDR method 用TDR法优化行波管耦合器
IVEC 2012 Pub Date : 2012-04-24 DOI: 10.1109/IVEC.2012.6262082
P. Rao, S. K. Datta, L. Kumar
{"title":"Optimization of couplers of TWT using TDR method","authors":"P. Rao, S. K. Datta, L. Kumar","doi":"10.1109/IVEC.2012.6262082","DOIUrl":"https://doi.org/10.1109/IVEC.2012.6262082","url":null,"abstract":"This paper describes usefulness of time-domain method (TDR) for optimization of couplers of TWT. Initially the method is used for a coaxial transmission line having four sections. Due to the transitions between the sections there exist some reflections. By knowing exact position of reflections one can optimize for better VSWR by introducing compensating steps. This method has been extended for the optimization of output coupler of a TWT by estimating the positions of discontinuities and optimizing the design for better VSWR. This method can be extended for any type of couplers like waveguide-to-coaxial transitions, or any other microwave transmission lines.","PeriodicalId":324211,"journal":{"name":"IVEC 2012","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124633578","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
Research progress of Ka band Gyro-TWTs in IECAS Ka波段陀螺行波管在IECAS中的研究进展
IVEC 2012 Pub Date : 2012-04-24 DOI: 10.1109/IVEC.2012.6262222
Q. Xue, C. Du, Pu-kun Liu, Shi-Chang Zhang, W. Gu, Yi-Long Su, Shou-xi Xu, Z. Geng, Shu-jian Wang
{"title":"Research progress of Ka band Gyro-TWTs in IECAS","authors":"Q. Xue, C. Du, Pu-kun Liu, Shi-Chang Zhang, W. Gu, Yi-Long Su, Shou-xi Xu, Z. Geng, Shu-jian Wang","doi":"10.1109/IVEC.2012.6262222","DOIUrl":"https://doi.org/10.1109/IVEC.2012.6262222","url":null,"abstract":"A high power Gyrotron Traveling-Wave Amplifier(Gyro-TWT) operating in the low-loss TE01 mode has been designed and demonstrated. The gyro-TWT consists of a double-anode magnetron injection gun(MIG), TE01 mode interaction circuit, a 36mm diameter collector, and a three disk sappire output window. A double-anode magnetron injection gun is designed to operate at 70 kV and 10A using the EGUN trajectory code and particle in cell program MAGIC. The electron beam with v⊥/vz =1.0 has a predicated axial velocity spread of 3-5%. The TE01 mode interaction circuit is made up of a section of alternating metal and lossy ceramic (BeO+TiO2) followed by a unloaded, metal-walled output region. The lossy property of the periodically loaded ceramic relieves the worries of the potential Bragg resonance arising from the periodicity of the interaction circuit, bring high attenuation to the potential competing mode, and enhances the stability of a gyro-TWT. The nonlinear self-consistent simulation code evaluated the operating characteristics of the gyro-TWT amplifier. For an axial velocity spread of Δvz/vz=3%, The predicted peak power is 180kW with -3dB bandwidths1.75GHz.","PeriodicalId":324211,"journal":{"name":"IVEC 2012","volume":"125 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130389153","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
Design of single disc RF window for 120 GHz, 1MW gyrotron 120ghz 1MW回旋管单盘射频窗口设计
IVEC 2012 Pub Date : 2012-04-24 DOI: 10.1109/IVEC.2012.6262247
M. K. Alaria, V. Bhomia, Y. Choyal, A. Sinha
{"title":"Design of single disc RF window for 120 GHz, 1MW gyrotron","authors":"M. K. Alaria, V. Bhomia, Y. Choyal, A. Sinha","doi":"10.1109/IVEC.2012.6262247","DOIUrl":"https://doi.org/10.1109/IVEC.2012.6262247","url":null,"abstract":"In this paper investigates the design of edge cooled single-disc CVD-diamond window for 120 GHz, 1 MW gyrotron. The design of RF window for 120 GHz, 1 MW gyrotron has been carried out using the CST microwave studio. In 120 GHz gyrotron single disc of diameter 90 mm and thickness 2.0 mm CVD diamond window has been used in the simulation. The return loss (S11) and transmission loss (S21) of the 120 GHz gyrotron window have been found -40.0 dB and -0.02 dB respectively. Thermal analysis of single disc rf window has also been carried out using ANSYS software for high power gyrotron. The temperature range on the disc surface has been found to be 50°C-150°C.","PeriodicalId":324211,"journal":{"name":"IVEC 2012","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126883636","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
220 GHz power amplifier development at Northrop Grumman 诺斯罗普·格鲁曼公司220ghz功率放大器的开发
IVEC 2012 Pub Date : 2012-04-24 DOI: 10.1109/IVEC.2012.6262275
J. Tucek, M. Basten, D. Gallagher, K. Kreischer
{"title":"220 GHz power amplifier development at Northrop Grumman","authors":"J. Tucek, M. Basten, D. Gallagher, K. Kreischer","doi":"10.1109/IVEC.2012.6262275","DOIUrl":"https://doi.org/10.1109/IVEC.2012.6262275","url":null,"abstract":"A 220 GHz vacuum electronic (VE) power amplifier has been designed and is being tested as part of the DARPA HiFIVE program. Minimum power goal is 50 watts at 220 GHz. This amplifier uses advanced, high current density cathodes, a folded waveguide slow-wave circuit, and a depressed collector for improved overall device efficiency. Operation at duty cycles of 50-100% is anticipated.","PeriodicalId":324211,"journal":{"name":"IVEC 2012","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129092591","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: 18
Simulation of cathode rejector for three-mode superpower Cherenkov oscillator 三模超功率切伦科夫振荡器阴极抑制器的仿真
IVEC 2012 Pub Date : 2012-04-24 DOI: 10.1109/IVEC.2012.6262217
A. A. Kurayev, A. Rak, A. K. Sinitsyn
{"title":"Simulation of cathode rejector for three-mode superpower Cherenkov oscillator","authors":"A. A. Kurayev, A. Rak, A. K. Sinitsyn","doi":"10.1109/IVEC.2012.6262217","DOIUrl":"https://doi.org/10.1109/IVEC.2012.6262217","url":null,"abstract":"With the use of a rigorous theory of calculation of irregular waveguides performed the simulation and optimization of three-mode rejector. The simulation results can be used to develop a superpower Cherenkov oscillators to increase their maximum output power and increase the threshold for electrical breakdown.","PeriodicalId":324211,"journal":{"name":"IVEC 2012","volume":"302 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116265069","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
Study of beam focusing techniques for a power- and frequency scalable photonic free-electron laser 功率和频率可扩展光子自由电子激光器光束聚焦技术的研究
IVEC 2012 Pub Date : 2012-04-24 DOI: 10.1109/IVEC.2012.6262138
J. H. H. Lee, M. V. van Dijk, T. Denis, P. V. D. van der Slot, K. Boller
{"title":"Study of beam focusing techniques for a power- and frequency scalable photonic free-electron laser","authors":"J. H. H. Lee, M. V. van Dijk, T. Denis, P. V. D. van der Slot, K. Boller","doi":"10.1109/IVEC.2012.6262138","DOIUrl":"https://doi.org/10.1109/IVEC.2012.6262138","url":null,"abstract":"In this paper, we study the feasibility and suitability of two beam focusing techniques, i.e., Brillouin-and immersed flow, to be used in a novel device which can be up-scaled in power via increasing the number of beams, and in frequency via reducing the spatial period of the photonic crystal.","PeriodicalId":324211,"journal":{"name":"IVEC 2012","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125715031","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 design of inner quasi-optical mode converter for 95GHz whispering gallery mode gyrotron 95GHz窃窃廊模式回旋管内部准光模式转换器设计
IVEC 2012 Pub Date : 2012-04-24 DOI: 10.1109/IVEC.2012.6262250
Hu Wang, Z. Geng, Shou-xi Xu, Pu-kun Liu
{"title":"A design of inner quasi-optical mode converter for 95GHz whispering gallery mode gyrotron","authors":"Hu Wang, Z. Geng, Shou-xi Xu, Pu-kun Liu","doi":"10.1109/IVEC.2012.6262250","DOIUrl":"https://doi.org/10.1109/IVEC.2012.6262250","url":null,"abstract":"An inner quasi-optical mode converter used for 95GHz TE62 whispering gallery mode gyrotron was designed. The Vlasov-type launcher and mirror system was calculated and optimized by the vector diffraction theory and the method of physical optics. Simulation results showed that on the aperture of output window the vector correlation coefficient and scalar correlation coefficient was 93.1% and 96.5% respectively.","PeriodicalId":324211,"journal":{"name":"IVEC 2012","volume":"142 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125766003","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
Output system design for 170 GHz, 0.5 MW gyrotron for ECRH application 用于ECRH应用的170ghz、0.5 MW回旋管输出系统设计
IVEC 2012 Pub Date : 2012-04-24 DOI: 10.1109/IVEC.2012.6262249
P. Kalaria, Kartikeyan V. Machavaram, M. Thumm
{"title":"Output system design for 170 GHz, 0.5 MW gyrotron for ECRH application","authors":"P. Kalaria, Kartikeyan V. Machavaram, M. Thumm","doi":"10.1109/IVEC.2012.6262249","DOIUrl":"https://doi.org/10.1109/IVEC.2012.6262249","url":null,"abstract":"In this paper, the first hand design of the output system of a 170 GHz, 0.5 MW will be presented. This gyrotron will be used for ECRH/ECCD applications in an experimental Indian Tokamak. The output system of the gyrotron includes a non-linear up-taper, an advanced dimpled-wall quasi-optical launcher and an RF window. All these components are designed and optimized such that a linearly polarized, Gaussian like beam is obtained as an output of the gyrotron.","PeriodicalId":324211,"journal":{"name":"IVEC 2012","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131967682","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
The design of W-band Extended Interaction Klystron Electron optics system w波段扩展相互作用速调管电子光学系统的设计
IVEC 2012 Pub Date : 2012-04-24 DOI: 10.1109/IVEC.2012.6262077
Shuzhong Wang, C. Ruan, Yong Zhong
{"title":"The design of W-band Extended Interaction Klystron Electron optics system","authors":"Shuzhong Wang, C. Ruan, Yong Zhong","doi":"10.1109/IVEC.2012.6262077","DOIUrl":"https://doi.org/10.1109/IVEC.2012.6262077","url":null,"abstract":"The Extended Interaction Klystron (EIK) has many applications in the millimeter and sub-millimeter frequency range. The paper illustrate the design of W-band electron optics system, include the machine, assembly and test of the focusing system.","PeriodicalId":324211,"journal":{"name":"IVEC 2012","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132499703","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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