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4th IEEE International Conference on Vacuum Electronics, 2003最新文献

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MEMS-based TWT development 基于mems的行波管开发
4th IEEE International Conference on Vacuum Electronics, 2003 Pub Date : 2003-05-28 DOI: 10.1109/IVEC.2003.1286056
L. Ives, C. Kory, M. Read, G. Miram, J. Booske
{"title":"MEMS-based TWT development","authors":"L. Ives, C. Kory, M. Read, G. Miram, J. Booske","doi":"10.1109/IVEC.2003.1286056","DOIUrl":"https://doi.org/10.1109/IVEC.2003.1286056","url":null,"abstract":"The proposed MEMS- based, high frequency, miniature, power efficient TWTAs are ideal microwave power amplifiers for space missions using micro-satellite clusters, where a host of in-space and terrestrial communication link technologies are required. Since both commercial and military satellites are spectrum challenged, utilizing available higher frequency bands is likely in the near future. These TWTs are also ideal amplifiers to integrate into network-centric military platforms. The reduced size and weight make these high frequency amplifiers ideal for communication transmitters used to network diverse and widespread command posts, sensors and shooters.","PeriodicalId":203178,"journal":{"name":"4th IEEE International Conference on Vacuum Electronics, 2003","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130560527","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
A novel scheme of PPM focusing design for linear beam tubes 一种新的线性光束管PPM聚焦设计方案
4th IEEE International Conference on Vacuum Electronics, 2003 Pub Date : 2003-05-28 DOI: 10.1109/IVEC.2003.1286306
M. Santra
{"title":"A novel scheme of PPM focusing design for linear beam tubes","authors":"M. Santra","doi":"10.1109/IVEC.2003.1286306","DOIUrl":"https://doi.org/10.1109/IVEC.2003.1286306","url":null,"abstract":"In this paper we discuss a novel scheme of periodic permanent magnet(PPM) focusing structure design having non-conventional magnetic periods. The design of the magnetic circuit is accomplished by use of finite element code ANSYS. This code solves for the magnetic field and flux density at all mesh points using vector potential technique.","PeriodicalId":203178,"journal":{"name":"4th IEEE International Conference on Vacuum Electronics, 2003","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132062021","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
T-functions for exact solution of the boundary problem for irregular wave-guides of gyrotrons and TWT including beyond-cutoff waves 包含超截止波的回旋管和行波管不规则波导边界问题精确解的t函数
4th IEEE International Conference on Vacuum Electronics, 2003 Pub Date : 2003-05-28 DOI: 10.1109/IVEC.2003.1286271
A. A. Kurayev, T. L. Popkova, S. Yaromenok
{"title":"T-functions for exact solution of the boundary problem for irregular wave-guides of gyrotrons and TWT including beyond-cutoff waves","authors":"A. A. Kurayev, T. L. Popkova, S. Yaromenok","doi":"10.1109/IVEC.2003.1286271","DOIUrl":"https://doi.org/10.1109/IVEC.2003.1286271","url":null,"abstract":"Special discretely defined T-functions for exact numerical solution of the boundary problem for irregular wave-guides as electrodynamics system of gyrotrons or slow wave structures of relativistic TWT including beyond-cutoff waves are proposed.","PeriodicalId":203178,"journal":{"name":"4th IEEE International Conference on Vacuum Electronics, 2003","volume":"108 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127962615","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
Pseudoperiodic folded waveguide for broadband unimode TWT 宽带单模行波管的伪周期折叠波导
4th IEEE International Conference on Vacuum Electronics, 2003 Pub Date : 2003-05-28 DOI: 10.1109/IVEC.2003.1286150
V. A. Solntsev, D. Nikonov
{"title":"Pseudoperiodic folded waveguide for broadband unimode TWT","authors":"V. A. Solntsev, D. Nikonov","doi":"10.1109/IVEC.2003.1286150","DOIUrl":"https://doi.org/10.1109/IVEC.2003.1286150","url":null,"abstract":"This paper describes the pseudoperiodic folded waveguide, which can be used for powerful broadband TWTs. In a periodic folded waveguide or coupled-cavity system (CCS) the 1-st spatial harmonic is used for TWT operation. We shall prove the possibility of achieving a large pseudoperiodic folded waveguide in broad bandwidth due to a matched choice of the step variation and other waveguide dimensions.","PeriodicalId":203178,"journal":{"name":"4th IEEE International Conference on Vacuum Electronics, 2003","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126794125","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
L-Band inductive output tubes l波段电感输出管
4th IEEE International Conference on Vacuum Electronics, 2003 Pub Date : 2003-05-28 DOI: 10.1109/IVEC.2003.1286012
H. Bohlen
{"title":"L-Band inductive output tubes","authors":"H. Bohlen","doi":"10.1109/IVEC.2003.1286012","DOIUrl":"https://doi.org/10.1109/IVEC.2003.1286012","url":null,"abstract":"In this paper an IOT electron gun with an established track record in UHF broadcast and science application was analyzed to determine the change of bunch waveform and fundamental rf current versus frequency. The results were 1) it turned out that deviations from the theoretically predicted bunch waveform already occurred at about 100 MHz, obviously without ever having deteriorated the performance of the existing IOTs. 2) the useful fundamental rf current carried by the bunches did not drop significantly until about 2 GHz. There was no magical threshold. Based on this result, a complete 1.3 kW continuous wave L-band IOT was simulated, maintaining the described gun configuration.","PeriodicalId":203178,"journal":{"name":"4th IEEE International Conference on Vacuum Electronics, 2003","volume":"284 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122963751","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
Traveling wave Gyroton with double mode operations and wide electron beam 具有双模操作和宽电子束的行波回旋子
4th IEEE International Conference on Vacuum Electronics, 2003 Pub Date : 2003-05-28 DOI: 10.1109/IVEC.2003.1286273
S. Kolosov, A. Kurayev, A. A. Lavrenov
{"title":"Traveling wave Gyroton with double mode operations and wide electron beam","authors":"S. Kolosov, A. Kurayev, A. A. Lavrenov","doi":"10.1109/IVEC.2003.1286273","DOIUrl":"https://doi.org/10.1109/IVEC.2003.1286273","url":null,"abstract":"In work the theory of Gyroton with a wide electron beam is constructed. Optimum regime of Gyroton with a wide electron beam are investigated. Frequency characteristics of Gyrotons, goffer and magnetostatic distributions are received. Dependence of gyroton efficiency on width of an electron beam is determined.","PeriodicalId":203178,"journal":{"name":"4th IEEE International Conference on Vacuum Electronics, 2003","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126284557","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 a TWT on the wavy bent rectangular waveguide 弯曲矩形波导上行波管的优化设计
4th IEEE International Conference on Vacuum Electronics, 2003 Pub Date : 2003-05-28 DOI: 10.1109/IVEC.2003.1286264
A.V. Aksenchyk, A. Kurayev
{"title":"Optimization of a TWT on the wavy bent rectangular waveguide","authors":"A.V. Aksenchyk, A. Kurayev","doi":"10.1109/IVEC.2003.1286264","DOIUrl":"https://doi.org/10.1109/IVEC.2003.1286264","url":null,"abstract":"Presented here is the self-consistent mathematical model of a TWT on the wavy bent rectangular waveguide with use of equivalent quadrupoles. It is shown, that the irregular relativistic TWT may have calculated electronic efficiency 65% in a S-band, in a Q-band the calculated efficiency may achieve 30%.","PeriodicalId":203178,"journal":{"name":"4th IEEE International Conference on Vacuum Electronics, 2003","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122311099","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
Experimental verification of harmonic multiplication in Ka-band two-stage tapered gyro-TWT ka波段两级锥形陀螺行波管谐波倍增的实验验证
4th IEEE International Conference on Vacuum Electronics, 2003 Pub Date : 2003-05-28 DOI: 10.1109/IVEC.2003.1286380
C. Baik, S. Jeon, D. Kim, A. Ganguly, G. Park, N. Sato, K. Yokooo
{"title":"Experimental verification of harmonic multiplication in Ka-band two-stage tapered gyro-TWT","authors":"C. Baik, S. Jeon, D. Kim, A. Ganguly, G. Park, N. Sato, K. Yokooo","doi":"10.1109/IVEC.2003.1286380","DOIUrl":"https://doi.org/10.1109/IVEC.2003.1286380","url":null,"abstract":"This paper deals about the experimental verification of harmonic multiplication in Ka-band two stage tapered Gyro-TWT, which has been designed and fabricated. The gyro traveling wave tube triplicates X-band input frequencies to amplified Ka-band output frequencies. Using a self-consistent large-signal theory, a saturated gain of 23.8 dB, a bandwidth of 4.1%, and an electronic efficiency of 10% are predicted when an axis-encircling electron beam of 4% axial velocity spread is assumed.","PeriodicalId":203178,"journal":{"name":"4th IEEE International Conference on Vacuum Electronics, 2003","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126800324","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
Low-pressure glow discharges in argon under uniform fields 均匀场下氩气中的低压辉光放电
4th IEEE International Conference on Vacuum Electronics, 2003 Pub Date : 2003-05-28 DOI: 10.1109/IVEC.2003.1286286
S. Ul-Haq
{"title":"Low-pressure glow discharges in argon under uniform fields","authors":"S. Ul-Haq","doi":"10.1109/IVEC.2003.1286286","DOIUrl":"https://doi.org/10.1109/IVEC.2003.1286286","url":null,"abstract":"The paper presents the electrical breakdown characteristics of pure argon gas as an independent gas under low-pressure in uniform field gaps by clean and high vacuum systems. The paper also presents experimental set up representing the test chamber and vacuum system.","PeriodicalId":203178,"journal":{"name":"4th IEEE International Conference on Vacuum Electronics, 2003","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125139592","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
Experimental observation and characterization of chaos in a driven TWT amplifier with delayed feedback 延迟反馈驱动行波管放大器混沌特性的实验观察
4th IEEE International Conference on Vacuum Electronics, 2003 Pub Date : 2003-05-28 DOI: 10.1109/IVEC.2003.1286074
S. Bhattacharjee, C. Marchewka, J. Booske, J. Scharer
{"title":"Experimental observation and characterization of chaos in a driven TWT amplifier with delayed feedback","authors":"S. Bhattacharjee, C. Marchewka, J. Booske, J. Scharer","doi":"10.1109/IVEC.2003.1286074","DOIUrl":"https://doi.org/10.1109/IVEC.2003.1286074","url":null,"abstract":"In this paper we describe experimental investigations of a driven TWT feedback amplifier as a candidate source of wideband, high power, chaotic radiation. Experimental observations and characterizations include time-domain waveforms and waveform phase plots, FFT spectra and Poincare maps at varying levels of feedback.","PeriodicalId":203178,"journal":{"name":"4th IEEE International Conference on Vacuum Electronics, 2003","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121634954","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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