多级降压收集极过渡区磁系统的计算及优化
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摘要
运用三维电磁场模拟软件Ansoft Maxwell3D对多级降压收集极过渡区磁场进行模拟计算及修正,模拟与实测结果轴向最大磁场误差在6%,同时采用Ansoft Maxwell3D与MTSS协同仿真的方法,并以提高回收效率和减小回流率为目标对Ku波段空间行波管多级降压收集极过渡区磁场进行了优化,优化后收集极中心频率收集效率从77.28%提高到79.63%,回流率从2.49%降低到0.59%。并对整管进行了测试,测试结果表明,收集极收集效率大于73.77%,行波管总效率大于59%,回流率小于0.79%,达到了预期目标,可以满足某通信卫星的要求。
The magnetic field in transition region of the multistage depressed collector( MDC) was simulated,modified and measured for design optimization of the magnetic system. The discrepancy between the simulated and measured results was less than 6%. The MDC's magnetic system of Ku-band 150 W travelling wave tube( TWT),dedicated to communication satellites,was optimized via simulation with a combination of Ansoft Maxwell3 D and lab-developed software Microwave-Tube-Simulator-Suite( MTSS),to improve the recovery efficiency and reduce the back-streaming rate. The simulated results show that the design optimization increased the recovery efficiency from77. 28% to 79. 45% and reduced the back-streaming rate from 2. 49% 0. 78% at the middle operating frequency.The test results show that the DMC's recovery efficiency was over 73. 77%,the TWT overall efficiency was higher than 59%,and the back-streaming rate was lower than 0. 79%. The newly-designed magnetic system satisfies the preliminary requirements of a communications satellite.
The magnetic field in transition region of the multistage depressed collector( MDC) was simulated,modified and measured for design optimization of the magnetic system. The discrepancy between the simulated and measured results was less than 6%. The MDC's magnetic system of Ku-band 150 W travelling wave tube( TWT),dedicated to communication satellites,was optimized via simulation with a combination of Ansoft Maxwell3 D and lab-developed software Microwave-Tube-Simulator-Suite( MTSS),to improve the recovery efficiency and reduce the back-streaming rate. The simulated results show that the design optimization increased the recovery efficiency from77. 28% to 79. 45% and reduced the back-streaming rate from 2. 49% 0. 78% at the middle operating frequency.The test results show that the DMC's recovery efficiency was over 73. 77%,the TWT overall efficiency was higher than 59%,and the back-streaming rate was lower than 0. 79%. The newly-designed magnetic system satisfies the preliminary requirements of a communications satellite.
引文
[1]Tushar K Ghosh,Richard G Carter.Optimization of MultiStage Depressed Collectors[J].IEEE Transactions on Electron Devices,2007,54(8):2031-2039
[2]Goyal Nisha,Shrivastav Nitin J,Gahlaut Vishant,et al.A Non-Conventional Multi-Stage Depressed Collector for High Efficiency Applications[C].2011 IEEE International Vacuum Electronics Conference(IVEC),India:Bangalore,2011:281-282
[3]Komm D.S,Benton R.T,Limburg H.C,et al.Advances in Space TWT Efficiencies[J].IEEE Transactions on Electron Devices,2001,48(1),174-176
[4]丁明清,黄明光,冯进军,等.离子束表面处理抑制空间行波管多级降压收集级二次电子发射的研究[J].真空科学与技术学报,2009,29(3):247-250
[5]郭开周.行波管研制技术[M].北京:电子工业出版社,2008:92
[6]Santra M.A Novel Scheme of PPM Focusing Design for Linear Beam Tubes[C].IVEC,2003,276-277
[7]赵美玲,聂玉峰,林世明.电磁场计算中的MLPG-FE耦合新方法[J].电波科学学报,2006,21(6):959-964
[8]邓光晟,吕国强,陈增泉,等.一种新型周期永磁聚焦系统过渡区的设计[J].强激光与粒子束,2007,19(07):1187-1191
[9]杨蕾,吕国强,贺兆昌.电子注在周期永磁聚焦系统中运动状态的计算机模拟[J].合肥工业大学学报(自然科学版),2007,30(12):1559-1563
[10]赵国庆,岳玲娜,王文祥,等.带开口磁环的周期永磁聚焦系统的2维模拟[J].强激光与粒子束,2008,20(1):96-98
[11]张瑞,王勇,谢敬新,等.百兆瓦级高功率速调管电子光学系统的研究[J].真空科学与技术学报,2009,29(5):499-503
[12]邓德荣,周霖,单李军.X波段耦合腔行波管周期永磁聚焦系统[J].强激光与粒子束,2010,22(04):837-840
[13]杨旭东,王莉,乔良,等.行波管磁场自动测量系统的设计与实现[J].机电一体化,2011,17(3):92-94
[14]余金清,胡玉禄,李斌.行波管中聚焦磁场对互作用影响的研究[J].真空电子技术,2011,(01):21-25
[15]彭龙,李元勋.带开口磁环的周期永磁聚焦系统的轴向磁场[J].强激光与粒子束,2011,23(9):2552-2556
[16]王松,王严梅.4.5-18GHz超宽带行波管的聚焦磁场对动态散焦的影响分析[J].真空电子技术,2013,(1):47-52
[17]黎泽伦,孟杰,黄友均,等.多注行波管PPM聚焦系统横向磁场研究[J].合肥工业大学学报(自然科学版),2014,(1):73-77
[18]宋睿,周泉丰,雷文强,等.0.22THz折叠波导行波管电子光学系统设计与实验研究[J].强激光与粒子束,2015,27(9):093101-1-093101-5
[19]郭际,尚新文,李飞,等.非轴对称磁场对MDC性能的影响[J].真空科学与技术学报,2013,33(8):797-802
[20]电子管设计手册编辑委员会.微波管电子光学系统设计手册[M].北京:国防工业出版社,1981:136-145
[2]Goyal Nisha,Shrivastav Nitin J,Gahlaut Vishant,et al.A Non-Conventional Multi-Stage Depressed Collector for High Efficiency Applications[C].2011 IEEE International Vacuum Electronics Conference(IVEC),India:Bangalore,2011:281-282
[3]Komm D.S,Benton R.T,Limburg H.C,et al.Advances in Space TWT Efficiencies[J].IEEE Transactions on Electron Devices,2001,48(1),174-176
[4]丁明清,黄明光,冯进军,等.离子束表面处理抑制空间行波管多级降压收集级二次电子发射的研究[J].真空科学与技术学报,2009,29(3):247-250
[5]郭开周.行波管研制技术[M].北京:电子工业出版社,2008:92
[6]Santra M.A Novel Scheme of PPM Focusing Design for Linear Beam Tubes[C].IVEC,2003,276-277
[7]赵美玲,聂玉峰,林世明.电磁场计算中的MLPG-FE耦合新方法[J].电波科学学报,2006,21(6):959-964
[8]邓光晟,吕国强,陈增泉,等.一种新型周期永磁聚焦系统过渡区的设计[J].强激光与粒子束,2007,19(07):1187-1191
[9]杨蕾,吕国强,贺兆昌.电子注在周期永磁聚焦系统中运动状态的计算机模拟[J].合肥工业大学学报(自然科学版),2007,30(12):1559-1563
[10]赵国庆,岳玲娜,王文祥,等.带开口磁环的周期永磁聚焦系统的2维模拟[J].强激光与粒子束,2008,20(1):96-98
[11]张瑞,王勇,谢敬新,等.百兆瓦级高功率速调管电子光学系统的研究[J].真空科学与技术学报,2009,29(5):499-503
[12]邓德荣,周霖,单李军.X波段耦合腔行波管周期永磁聚焦系统[J].强激光与粒子束,2010,22(04):837-840
[13]杨旭东,王莉,乔良,等.行波管磁场自动测量系统的设计与实现[J].机电一体化,2011,17(3):92-94
[14]余金清,胡玉禄,李斌.行波管中聚焦磁场对互作用影响的研究[J].真空电子技术,2011,(01):21-25
[15]彭龙,李元勋.带开口磁环的周期永磁聚焦系统的轴向磁场[J].强激光与粒子束,2011,23(9):2552-2556
[16]王松,王严梅.4.5-18GHz超宽带行波管的聚焦磁场对动态散焦的影响分析[J].真空电子技术,2013,(1):47-52
[17]黎泽伦,孟杰,黄友均,等.多注行波管PPM聚焦系统横向磁场研究[J].合肥工业大学学报(自然科学版),2014,(1):73-77
[18]宋睿,周泉丰,雷文强,等.0.22THz折叠波导行波管电子光学系统设计与实验研究[J].强激光与粒子束,2015,27(9):093101-1-093101-5
[19]郭际,尚新文,李飞,等.非轴对称磁场对MDC性能的影响[J].真空科学与技术学报,2013,33(8):797-802
[20]电子管设计手册编辑委员会.微波管电子光学系统设计手册[M].北京:国防工业出版社,1981:136-145