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Current status of the large-signal code TESLA: Recent development and new applications 大信号码TESLA的现状:最新发展及新应用
IVEC 2012 Pub Date : 2012-04-24 DOI: 10.1109/IVEC.2012.6262265
I. Chernyavskiy, A. Vlasov, S. Cooke, B. Levush, T. Antonsen, K. Nguyen, E. Wright
{"title":"Current status of the large-signal code TESLA: Recent development and new applications","authors":"I. Chernyavskiy, A. Vlasov, S. Cooke, B. Levush, T. Antonsen, K. Nguyen, E. Wright","doi":"10.1109/IVEC.2012.6262265","DOIUrl":"https://doi.org/10.1109/IVEC.2012.6262265","url":null,"abstract":"TESLA is a 2.5D large-signal code, which is suitable for the modeling of single-beam and multiple-beam amplifiers based on linear propagating beams. Initially developed for the modeling of conventional, single-beam klystrons mainly, later on the code was extended and successfully validated to allow modeling of multiple-beam klystrons (MBKs), extended interaction klystrons (EIKs) and Inductive Output Tubes (IOTs). This work reports the current status of the code TESLA, including the latest advances in its development, validation and successful extension of its applicability.","PeriodicalId":324211,"journal":{"name":"IVEC 2012","volume":"5 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":"129591708","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
On the isolation performance of MPAs in satellite transponders 卫星转发器中MPAs的隔离性能研究
IVEC 2012 Pub Date : 2012-04-24 DOI: 10.1109/IVEC.2012.6262228
S. D'addio, M. Aloisio, P. Angeletti
{"title":"On the isolation performance of MPAs in satellite transponders","authors":"S. D'addio, M. Aloisio, P. Angeletti","doi":"10.1109/IVEC.2012.6262228","DOIUrl":"https://doi.org/10.1109/IVEC.2012.6262228","url":null,"abstract":"This paper presents Monte Carlo simulations carried out by means of an ESA in-house simulator developed in Matlab environment. The objective of the simulations is to analyze how the MPA performance, in particular in terms of isolation at the MPA output ports, is affected by the amplitude and phase tracking errors of the high power amplifiers within the MPA. Different approaches are considered and their results are compared from an end user perspective.","PeriodicalId":324211,"journal":{"name":"IVEC 2012","volume":"41 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":"127047091","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 analytical design of a folded waveguide slow-wave structure for THz TWT 太赫兹行波管折叠波导慢波结构的解析设计
IVEC 2012 Pub Date : 2012-04-24 DOI: 10.1109/IVEC.2012.6262209
Yajun Wang, Zhang Chen
{"title":"The analytical design of a folded waveguide slow-wave structure for THz TWT","authors":"Yajun Wang, Zhang Chen","doi":"10.1109/IVEC.2012.6262209","DOIUrl":"https://doi.org/10.1109/IVEC.2012.6262209","url":null,"abstract":"A simple method based on the physics characteristics to get the main parameters of folded waveguide traveling wave tube (TWT) circuit is present. Providing the operating frequency and beam voltage, we can obtain the initial structure parameters of the folded waveguide slow-wave structure. An 220GHz folded waveguide slow-wave structure is designed to verify this method. The cold characteristics including dispersion relation and interaction impedance are analyzed. The large signal performance of folded waveguide circuit is predicted by PIC code.","PeriodicalId":324211,"journal":{"name":"IVEC 2012","volume":"1 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":"129048265","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
Some results of investigation of power multi-beam monotron oscillator 大功率多束单管振荡器的一些研究结果
IVEC 2012 Pub Date : 2012-04-24 DOI: 10.1109/IVEC.2012.6262086
N. A. Akafyeva, A. Miroshnichenko, V. Tsarev
{"title":"Some results of investigation of power multi-beam monotron oscillator","authors":"N. A. Akafyeva, A. Miroshnichenko, V. Tsarev","doi":"10.1109/IVEC.2012.6262086","DOIUrl":"https://doi.org/10.1109/IVEC.2012.6262086","url":null,"abstract":"A multi-beam monotron oscillator that has four-gap cavity and which is excited in-phase oscillation was numerically investigated. As a result of numerical calculations and optimization the capability obtaining in such device on a frequency 2450 MHz high electron efficiency (60%) was shown.","PeriodicalId":324211,"journal":{"name":"IVEC 2012","volume":"1 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":"130584270","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
Compact A6 magnetron with permanent magnet 紧凑型A6永磁控管
IVEC 2012 Pub Date : 2012-04-24 DOI: 10.1109/IVEC.2012.6262244
C. Leach, S. Prasad, M. Fuks, E. Schamiloglu
{"title":"Compact A6 magnetron with permanent magnet","authors":"C. Leach, S. Prasad, M. Fuks, E. Schamiloglu","doi":"10.1109/IVEC.2012.6262244","DOIUrl":"https://doi.org/10.1109/IVEC.2012.6262244","url":null,"abstract":"A compact A6 magnetron [1] with permanent magnets was simulated in both FEM and in particle-in-cell, demonstrating a uniform magnetic field that exceeded 0.5 T in the electron interaction space and almost complete elimination of upstream and downstream leakage currents.","PeriodicalId":324211,"journal":{"name":"IVEC 2012","volume":"1 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":"130760052","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 40W Ku-band NanoMPM™ for mobile communication 用于移动通信的40W ku波段NanoMPM™
IVEC 2012 Pub Date : 2012-04-24 DOI: 10.1109/IVEC.2012.6262112
D. Springmann, M. Barsanti, N. Brown, D. Chan, A. Donald, R. Duggal, T. Schoemehl
{"title":"A 40W Ku-band NanoMPM™ for mobile communication","authors":"D. Springmann, M. Barsanti, N. Brown, D. Chan, A. Donald, R. Duggal, T. Schoemehl","doi":"10.1109/IVEC.2012.6262112","DOIUrl":"https://doi.org/10.1109/IVEC.2012.6262112","url":null,"abstract":"L3 EDD has developed a new, low power Ku-band MPM, the M1870. The amplifier is significantly smaller than current MPM offerings and addresses a market underserved by SSPAs due to their SWAP limitations. MPM output power is 40 W nominal from 14.4 to 15.4 GHz with an efficiency of 25% in a 1.5 lb package.","PeriodicalId":324211,"journal":{"name":"IVEC 2012","volume":"10 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":"130779811","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
Electron gun design for multi-beam pulsed amplifier 多波束脉冲放大器电子枪设计
IVEC 2012 Pub Date : 2012-04-24 DOI: 10.1109/IVEC.2012.6262121
A. Nehra, R. K. Gupta, P. C. Panda, S. M. Sharma, Y. Choyal, Ranjan Sharma
{"title":"Electron gun design for multi-beam pulsed amplifier","authors":"A. Nehra, R. K. Gupta, P. C. Panda, S. M. Sharma, Y. Choyal, Ranjan Sharma","doi":"10.1109/IVEC.2012.6262121","DOIUrl":"https://doi.org/10.1109/IVEC.2012.6262121","url":null,"abstract":"This paper presents the design of an eight beam electron gun using OPERA 3D code for pulsed amplifier. The electron gun has to deliver total current 560 (70×8) mA at voltage 6 kV. Each beam has a perveance of 0.15 μP making a total gun perveance of 1.2 μP corresponding to a total beam power of more than 3 kW. The cathode radius is 13.5 mm and individual emitter radius is 1.55 mm having current density 0.92 A/cm2. Focusing has been accomplished through solenoid. The beam pulsing can be accomplished through beam forming electrode relatively at lower negative potential at BFE with respect to cathode. This design has an added feature of cathode protection from ion bombardment with the application of additional ion barrier anode.","PeriodicalId":324211,"journal":{"name":"IVEC 2012","volume":"111 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":"132021958","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
Electron bunching from a DC-biased single surface multipactor 来自直流偏置单表面多因子的电子聚束
IVEC 2012 Pub Date : 2012-04-24 DOI: 10.1109/IVEC.2012.6262231
M. Hur, Dongwon Shin, S. Jeon, Jung-Il Kim, G. Kim
{"title":"Electron bunching from a DC-biased single surface multipactor","authors":"M. Hur, Dongwon Shin, S. Jeon, Jung-Il Kim, G. Kim","doi":"10.1109/IVEC.2012.6262231","DOIUrl":"https://doi.org/10.1109/IVEC.2012.6262231","url":null,"abstract":"Generation of electron bunch from a dc-biased, single surface multipactor was studied theoretically and by PIC simulations. The condition for a spatially narrow bunch was obtained and verified by PIC simulations. This kind of multipactor is proposed to be used as a compact electron gun for various applications, such as linear accelerators.","PeriodicalId":324211,"journal":{"name":"IVEC 2012","volume":"1 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":"130486841","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 novel high power 3 GHz tunable 250 GHz gyrotron for Dynamic Nuclear Polarization 一种用于动态核极化的新型高功率3 GHz可调谐250 GHz回旋管
IVEC 2012 Pub Date : 2012-04-24 DOI: 10.1109/IVEC.2012.6262183
A. Barnes, E. Nanni, S. Jawla, Q. Z. Ni, J. Herzfeld, R. Griffin, R. Temkin
{"title":"A novel high power 3 GHz tunable 250 GHz gyrotron for Dynamic Nuclear Polarization","authors":"A. Barnes, E. Nanni, S. Jawla, Q. Z. Ni, J. Herzfeld, R. Griffin, R. Temkin","doi":"10.1109/IVEC.2012.6262183","DOIUrl":"https://doi.org/10.1109/IVEC.2012.6262183","url":null,"abstract":"Designs and implementation of a novel tunable 250 GHz gyrotron oscillator for Dynamic Nuclear Polarization (DNP) experiments with >;10 W output power over most of a 3 GHz band and >;35 W peak power are shown. The bandwidth and power can generate a substantial THz field over the band used for DNP experiments, without the need for sweeping the NMR magnetic field. Substantially improved tunability is achieved by implementing a long (23 mm) interaction cavity that can excite higher order axial modes by changing either the magnetic field of the gyrotron or the cathode potential. This interaction cavity excites the rotating TE5,2,q mode, and an internal mode converter outputs a high-quality microwave beam with >;94% Gaussian content. The gyrotron was integrated into a DNP spectrometer, resulting in 25% improved DNP enhancements.","PeriodicalId":324211,"journal":{"name":"IVEC 2012","volume":"54 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":"122969886","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
Experimental program to test a high-power, 670 GHz gyrotron, and its applicability to the remote detection of concealed radioactive materials 实验方案测试了一台大功率670 GHz回旋管，及其对隐蔽放射性物质远程探测的适用性
IVEC 2012 Pub Date : 2012-04-24 DOI: 10.1109/IVEC.2012.6262131
C. Romero-Talamas, G. Nusinovich, J. Rodgers, D. Kashyn, B. Lenardo, R. Elton, A. Shkvarunets, V. Granatstein, M. Glyavin
{"title":"Experimental program to test a high-power, 670 GHz gyrotron, and its applicability to the remote detection of concealed radioactive materials","authors":"C. Romero-Talamas, G. Nusinovich, J. Rodgers, D. Kashyn, B. Lenardo, R. Elton, A. Shkvarunets, V. Granatstein, M. Glyavin","doi":"10.1109/IVEC.2012.6262131","DOIUrl":"https://doi.org/10.1109/IVEC.2012.6262131","url":null,"abstract":"Tests planned to validate the operation of a 300 kW, 670 GHz gyrotron, presently under construction at the University of Maryland, are presented. Once the gyrotron is operational, the program will focus on investigating the applicability of the gyrotron's wave beam to remotely detect the presence of concealed radioactive materials.","PeriodicalId":324211,"journal":{"name":"IVEC 2012","volume":"20 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":"122283541","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
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