Theoretical Analysis of Conductivity and Dielectric Attenuation in Millimeter-wave TWT Helical SWS

Chong C K, Layman D, and Le Borgne R H, et al.. Development of high-power Ka and Q dual-band and communications or radar dual-function helix-TWT [J].IEEE Transactions on Electron Devices.2009, 56(5):913-918[2]Dialetis D, Chernin D, and Antonsen T M Jr, et al.. Accurate representation of attenuation in Helix TWT Simulation Codes [J].IEEE Transactions on Electron Devices.2009, 56(5):935-944[3]Datta S K, Kumar L, and Basu B N. A simple and accurate analysis of conductivity loss in millimeter-wave helical slow-wave structures[J].Journal of Infrared, Millimeter, and Terahertz Waves.2009, 30(4):381-392[4]Duan Zhao-yun, Gong Yu-bin, Wang Wen-xiang, and Wei Yan-yu. Investigation into the effect of dielectric loss on RF characteristics of helical SWS[J]. Journal of Infrared, Millimeter, and Terahertz Waves, 2008, 29(1): 23-34.[5]Gilmour A S, Gillette M R, and Chen J T. Theoretical and experimental TWT helix loss determination[J].IEEE Transactions on Electron Devices.1979, 26(10):1581-1588[6]Sensiper S. Electromagnetic wave propagation on helical conductors [D]. [Ph.D. dissertation], Dept. of Electrical Engineering, MIT, May 1951.[7]Ghosh S, Jain P K, and Basu B N. Rigorous tape analysis of inhomogeneously-loaded helical slow wave structures[J].IEEE Transactions on Electron Devices.1997, 44(7):1158-1168[8]Cheinin D, Antonsen T M Jr, and Levush B. Exact treatment of the dispersion and beam interaction impedance of a thin tape helix surrounded by a radially stratified dielectric[J].IEEE Transactions on Electron Devices.1999, 46(7):1472-1482[9]Naidu V B, Datta S K, and Ramana P R, et al.. Three-dimensional electromagnetic analysis of attenuator- coated helix support rods of a traveling-wave tube[J].IEEE Transactions on Electron Devices.2009, 56(5):945-950[10]Kory C L. Three-dimensional simulation of helix traveling- wave tube cold-test characteristics using MAFIA [J].IEEE Transactions on Electron Devices.1996, 43(8):1317-1319[11]Aloisio M and Waller P. Analysis of helical slow-wave structures for space TWTs Using 3-D electromagnetic simulators [J].IEEE Transactions on Electron Devices.2005, 52(5):749-754[12] Ansoft HFSS User Manual. www.hfss.com, 2009.[13]Quarteroni A, Sacco R, and Saleri F. Numerical Mathematics [M], Beijing: Science Press, 2006: 267-275.[14] CST MWS User Manual. www.cst.com, 2009.[15]Cooke S J, Mondelli A , and Levush B, et al.. CTLSSan advanced electromagnetic simulation tool for designing high-power microwave sources [J].IEEE Transactions on Plasma Science.2000, 28(3):841-866[16]Xu Li, Yang ZhongHai, and Li Bin. High-frequency circuit simulator: an advanced three-dimensional finite-element electromagnetic-simulation tool for microwave tubes [J].IEEE Transactions on Electron Devices.2009, 56(5):1141-1151[17]王文祥. 微波工程技术[M]. 北京：国防工业出版社，2009: 198-200.[18]肖刘, 苏小保, 刘濮鲲. 螺旋带色散特性和耦合阻抗的精确计算[J].电子与信息学报.2007, 29(3):751-755浏览Xiao Liu, Su Xiao-bao, and Liu Pu-kun. Precise calculation of the dispersion and coupling impedance of tape helix [J]. Journal of Electronics ＆ Information Technology, 2007, 29(3): 751-755.[19]高陇桥. 氧化铍陶瓷[M]. 北京：冶金工业出版社, 2006: 80-82.[20]刘联宝, 戴昌鼎. 电真空器件的钎焊与陶瓷金属封接[M]. 北京：国防工业出版社, 1978: 18-19.[21]Goren Y, Schram A, Gagne D, and Jensen C. Accurate measurements of the dielectric properties of TWT BeO support rods[C]. IVEC, Tokyo, Japan, 2007: 1-2.[22]Seo W B and Choi J J. Dielectric measurements using fabry- perot open resonators at millimeter wave frequencies (26-110 GHz) [C]. IVEC, Monterey, California, USA, 2002: 373-374.