开敞型慢波线热传导的一维分析
ONE DIMENSIONAL ANALYSIS OF HEAT CONDUCTION OF THE OPEN-TYPE SLOW WAVE STRUCTURE
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摘要: 在O型功率行波管中,慢波线的散热性能决定了行波管的功率容量。本文根据热力学的一维温差方程,导出了由梯形横截面介质杆支撑的开敞型慢波线的热点与管壳之间的温差,此温差值决定了管子的功率容量。用求得的分析式对具体结构进行计算,求得的计算值与实测值相符。文中还给出了几个弹压型及焊接型慢波线的温差数据作为分析比较,为慢波线的工艺设计分析提供了依据。
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Abstract: In an O type high power travelling wave tube (TWT), its power capacity is determined by the heat conduction characteristic of the slow wave structure (SWS). When the open type SWS is supported by dielectric rods of trapezoid shape in cross section, the one dimensional equation of the temperature difference between the hot spot of the SWS and the barrel of the tube is derived in this article. The value of temperature difference determines the power capacity of the TWT. The equations obtained are then applied to analyze different kinds of practical open type SWS. Theoretical calculation is in good agreement with measurement. Some values. of temperature difference for several practical SWS, some of which are made by spring pressed, and some by brazing, are given for comparision and for use in technological design and analysis. -
J. A. Lucken,工EEE Trans.on Electron Devices,ED-16(1969). 813.[2]G. Fleury, P.Gosset and G.Kantorowicrz, MOGA 70, 8th International Conference on Microwaves and Optical Generation and Amplification, KLUWER-DEVENTER (The Netherlands), p. 1-11.[4]R. J. Espinosa, Microwaves, 8(1969), 54.[5]F. Weinzierl and F. Gross, MOGA 70, 8th International Conference on Microwaves and Optical Generation, and Amplification. KLUWER-DEVENTER (The Netherlands), p. 1-1.[6]M. O. Bryant and F. E. Wary, MOGA 68, 7th International Conference on microwaves and Optical Generation and Amplification, VDE-VERLAG, GMBH, p. 42. -
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