Pub Date : 2011-02-21DOI: 10.1109/IVEC.2011.5747058
R. R. Rao, Narendra Kumar, R. Prakash, U. Singh, M. K. Alaria, A. Sinha
For reliable operation of high power microwave sources such as high power gyrotron demands stringent vacuum conditions to be fulfilled. In this paper, the vacuum requirements of a 42 GHz, 200 kW CW/ long-pulse gyrotron has been presented and also includes requirement for its heat treatment and vacuum processing.
{"title":"Vacuum processing of 42 GHz, 200 kW CW/long-pulse gyrotron","authors":"R. R. Rao, Narendra Kumar, R. Prakash, U. Singh, M. K. Alaria, A. Sinha","doi":"10.1109/IVEC.2011.5747058","DOIUrl":"https://doi.org/10.1109/IVEC.2011.5747058","url":null,"abstract":"For reliable operation of high power microwave sources such as high power gyrotron demands stringent vacuum conditions to be fulfilled. In this paper, the vacuum requirements of a 42 GHz, 200 kW CW/ long-pulse gyrotron has been presented and also includes requirement for its heat treatment and vacuum processing.","PeriodicalId":106174,"journal":{"name":"2011 IEEE International Vacuum Electronics Conference (IVEC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127021164","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}
Pub Date : 2011-02-21DOI: 10.1109/IVEC.2011.5747005
Mithilesh Kumar, M. Kumar, Ashok Bansiwal, A. K. Agrawal, Ravi Ninavath, Venkat, S. Raina, L. Kumar
This paper describes the overall design of a Ku-band 19 beam klystron amplifier. The device is designed to operate near to 2.5 KV with the total beam current of 0.5A equally distributed among its various beamlets. Two new schemes of magnetic focusing arrangement have been analyzed and experimented A block window design has been incorporated for the RF input and output. First, in-house developed codes and 1D code AJ Disk is used for initial design, later commercially available 3D simulation codes like CST-studio and Ansoft HFSS have been used for final optimization of the design.
{"title":"Design of a high frequency miniature multi beam klystron (MBK)","authors":"Mithilesh Kumar, M. Kumar, Ashok Bansiwal, A. K. Agrawal, Ravi Ninavath, Venkat, S. Raina, L. Kumar","doi":"10.1109/IVEC.2011.5747005","DOIUrl":"https://doi.org/10.1109/IVEC.2011.5747005","url":null,"abstract":"This paper describes the overall design of a Ku-band 19 beam klystron amplifier. The device is designed to operate near to 2.5 KV with the total beam current of 0.5A equally distributed among its various beamlets. Two new schemes of magnetic focusing arrangement have been analyzed and experimented A block window design has been incorporated for the RF input and output. First, in-house developed codes and 1D code AJ Disk is used for initial design, later commercially available 3D simulation codes like CST-studio and Ansoft HFSS have been used for final optimization of the design.","PeriodicalId":106174,"journal":{"name":"2011 IEEE International Vacuum Electronics Conference (IVEC)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121380296","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}
Pub Date : 2011-02-21DOI: 10.1109/IVEC.2011.5746981
M. Read, T. Bui, R. Jackson, L. Ives, H. Freund
This paper describes a 402.5 MHz 140 kW Inductive Output Tube (IOT) that is being developed for use in proton accelerators. New, more efficient, computer codes will be used to simulate the time dependent behavior of the IOT. The principal components of the device, including the RF structure, electron gun, and magnetics are described.
{"title":"Development of a 402.5 MHz 140 kW Inductive Output Tube","authors":"M. Read, T. Bui, R. Jackson, L. Ives, H. Freund","doi":"10.1109/IVEC.2011.5746981","DOIUrl":"https://doi.org/10.1109/IVEC.2011.5746981","url":null,"abstract":"This paper describes a 402.5 MHz 140 kW Inductive Output Tube (IOT) that is being developed for use in proton accelerators. New, more efficient, computer codes will be used to simulate the time dependent behavior of the IOT. The principal components of the device, including the RF structure, electron gun, and magnetics are described.","PeriodicalId":106174,"journal":{"name":"2011 IEEE International Vacuum Electronics Conference (IVEC)","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114080434","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}
Pub Date : 2011-02-21DOI: 10.1109/IVEC.2011.5746995
P. Ferguson, M. Read, D. Marsden, R. Ives
This paper describes a 100 kW CW, S-Band klystron that is being developed for use in high energy accelerator applications. Focusing for the beam is provided by a PPM structure. The principal components of the device, including the RF structure, electron gun, and magnetics are described.
{"title":"Development of a 100 kW CW, S-Band, PPM focused klystron","authors":"P. Ferguson, M. Read, D. Marsden, R. Ives","doi":"10.1109/IVEC.2011.5746995","DOIUrl":"https://doi.org/10.1109/IVEC.2011.5746995","url":null,"abstract":"This paper describes a 100 kW CW, S-Band klystron that is being developed for use in high energy accelerator applications. Focusing for the beam is provided by a PPM structure. The principal components of the device, including the RF structure, electron gun, and magnetics are described.","PeriodicalId":106174,"journal":{"name":"2011 IEEE International Vacuum Electronics Conference (IVEC)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116257524","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}
Pub Date : 2011-02-21DOI: 10.1109/IVEC.2011.5746873
A. Galdetskiy, I. Golenitskiy, V. Myakinkov, A. A. Negirev, U. B. Rudy
The opportunities of power consumption decreasing are investigated theoretically and in experiments. SWS geometry optimization and depressed collector can reduce power consumption on the order of magnitude.
从理论上和实验上探讨了降低功耗的可能性。SWS的几何优化和降压集电极可以将功耗降低一个数量级。
{"title":"On power consumption reduction in 700 GHz BWO","authors":"A. Galdetskiy, I. Golenitskiy, V. Myakinkov, A. A. Negirev, U. B. Rudy","doi":"10.1109/IVEC.2011.5746873","DOIUrl":"https://doi.org/10.1109/IVEC.2011.5746873","url":null,"abstract":"The opportunities of power consumption decreasing are investigated theoretically and in experiments. SWS geometry optimization and depressed collector can reduce power consumption on the order of magnitude.","PeriodicalId":106174,"journal":{"name":"2011 IEEE International Vacuum Electronics Conference (IVEC)","volume":"86 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113989892","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}
Pub Date : 2011-02-21DOI: 10.1109/IVEC.2011.5746852
T. Ghosh, A. Challis, A. Tokeley, M. J. Duffield, K. Rushbrook, I. Poston, Daniel Scott, A. Jacob, D. Bowler
A number of helix mini traveling wave tubes (TWTs) operating over a multi-octave frequency band have been designed and developed during last ten years. In this paper, the critical areas of design and development of these devices are elaborated and supported by experimental results. Details about an ongoing development of 2 to 7 GHz, 100 W helix TWT are also presented.
{"title":"Design and development of 2 to 3 octave band helix mini-TWTs","authors":"T. Ghosh, A. Challis, A. Tokeley, M. J. Duffield, K. Rushbrook, I. Poston, Daniel Scott, A. Jacob, D. Bowler","doi":"10.1109/IVEC.2011.5746852","DOIUrl":"https://doi.org/10.1109/IVEC.2011.5746852","url":null,"abstract":"A number of helix mini traveling wave tubes (TWTs) operating over a multi-octave frequency band have been designed and developed during last ten years. In this paper, the critical areas of design and development of these devices are elaborated and supported by experimental results. Details about an ongoing development of 2 to 7 GHz, 100 W helix TWT are also presented.","PeriodicalId":106174,"journal":{"name":"2011 IEEE International Vacuum Electronics Conference (IVEC)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124390064","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}
Pub Date : 2011-02-21DOI: 10.1109/IVEC.2011.5746978
M. Mineo, C. Paoloni, D. Bariou, J. David, A. Durand
Backward-wave regime is suitable for the realization of THz vacuum amplifiers. The advantages in terms of structure dimensions, losses and low beam voltage are demonstrated. A 1 THz backward-wave amplifier is presented showing more that 18 dB gain and 8.5 dBm output power.
{"title":"Backward-wave vacuum amplifier for THz amplification","authors":"M. Mineo, C. Paoloni, D. Bariou, J. David, A. Durand","doi":"10.1109/IVEC.2011.5746978","DOIUrl":"https://doi.org/10.1109/IVEC.2011.5746978","url":null,"abstract":"Backward-wave regime is suitable for the realization of THz vacuum amplifiers. The advantages in terms of structure dimensions, losses and low beam voltage are demonstrated. A 1 THz backward-wave amplifier is presented showing more that 18 dB gain and 8.5 dBm output power.","PeriodicalId":106174,"journal":{"name":"2011 IEEE International Vacuum Electronics Conference (IVEC)","volume":"84 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124128813","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}
Pub Date : 2011-02-21DOI: 10.1109/IVEC.2011.5747094
N. R. Panchal, R. Jotania
The M-type Strontium Hexaferrite SrFe12O19 particles were prepared by a Self propagating High temperature Synthesis (SHS) route. Precursors were heated under two different conditions: microwave heating for 30 minutes and sintered at 950ºC for 4 hrs. The dielectric properties: dielectric constant (ε'), dielectric loss (tan δ) and ac conductivity (σac) were measured at room temperature in the frequency range from 100 Hz to 2 MHz. The samples present a non-linear behavior for the dielectric constant at 1 kHz, 100 kHz and 2 MHz. The dielectric properties of prepared Strontium Hexaferrite samples were discussed in view of applications as a material for microwave devices, permanent magnets and high density magnetic recording media.
{"title":"Heat treatment effects on dielectric properties of SrFe12O19 Hexaferrite prepared by an SHS route","authors":"N. R. Panchal, R. Jotania","doi":"10.1109/IVEC.2011.5747094","DOIUrl":"https://doi.org/10.1109/IVEC.2011.5747094","url":null,"abstract":"The M-type Strontium Hexaferrite SrFe12O19 particles were prepared by a Self propagating High temperature Synthesis (SHS) route. Precursors were heated under two different conditions: microwave heating for 30 minutes and sintered at 950ºC for 4 hrs. The dielectric properties: dielectric constant (ε'), dielectric loss (tan δ) and ac conductivity (σac) were measured at room temperature in the frequency range from 100 Hz to 2 MHz. The samples present a non-linear behavior for the dielectric constant at 1 kHz, 100 kHz and 2 MHz. The dielectric properties of prepared Strontium Hexaferrite samples were discussed in view of applications as a material for microwave devices, permanent magnets and high density magnetic recording media.","PeriodicalId":106174,"journal":{"name":"2011 IEEE International Vacuum Electronics Conference (IVEC)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126255133","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}
Pub Date : 2011-02-21DOI: 10.1109/IVEC.2011.5747087
M. K. Badapanda, A. Tripathi, R. Upadhyay, P. R. Hannurkar
The paper presents the detail of TH 2089 klystron amplifier based high power 352.2 MHz RF test setup. This test setup has got both CW and pulsed capability. Brief description of various power supplies required for biasing this klystron amplifier, along with their interconnection and sequence of operation is also presented in this paper.
{"title":"Development of 352.2 MHz high power RF test setup","authors":"M. K. Badapanda, A. Tripathi, R. Upadhyay, P. R. Hannurkar","doi":"10.1109/IVEC.2011.5747087","DOIUrl":"https://doi.org/10.1109/IVEC.2011.5747087","url":null,"abstract":"The paper presents the detail of TH 2089 klystron amplifier based high power 352.2 MHz RF test setup. This test setup has got both CW and pulsed capability. Brief description of various power supplies required for biasing this klystron amplifier, along with their interconnection and sequence of operation is also presented in this paper.","PeriodicalId":106174,"journal":{"name":"2011 IEEE International Vacuum Electronics Conference (IVEC)","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125734719","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}
Pub Date : 2011-02-21DOI: 10.1109/IVEC.2011.5747016
C. Joye, J. Calame, K. Nguyen, D. Pershing, P. Larsen, M. Garven, Doewon Park, R. Bass, B. Levush
Wideband, distributed beam amplifiers are under development at NRL. We report on microfabrication techniques used to construct several types of millimeter wave planar amplifier circuits using Ultraviolet Lithography (UV-LIGA).
{"title":"Microfabrication of wideband distributed beam amplifiers at 220 GHz","authors":"C. Joye, J. Calame, K. Nguyen, D. Pershing, P. Larsen, M. Garven, Doewon Park, R. Bass, B. Levush","doi":"10.1109/IVEC.2011.5747016","DOIUrl":"https://doi.org/10.1109/IVEC.2011.5747016","url":null,"abstract":"Wideband, distributed beam amplifiers are under development at NRL. We report on microfabrication techniques used to construct several types of millimeter wave planar amplifier circuits using Ultraviolet Lithography (UV-LIGA).","PeriodicalId":106174,"journal":{"name":"2011 IEEE International Vacuum Electronics Conference (IVEC)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125842710","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：