利用HFSS、CTLSS、Christine 1-D/3-D预测高效率线性c波段螺旋行波管冷、热试验特性

Fifth IEEE International Vacuum Electronics Conference (IEEE Cat. No.04EX786) Pub Date : 2004-04-27 DOI:10.1109/IVELEC.2004.1316233

R. Begum, M. Chesnut, J. Legarra, B. Stockwell, S. Cooke, D. Chernin, C. Chang, T. Antonsen, B. Levush

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引用次数: 1

摘要

采用HFSS/CTLSS (3-D电磁编码)对c波段螺旋行波管(TWT)进行了建模，预测了器件不同截面的色散和阻抗特性。这种特殊的行波管由两个由服务器分隔的射频部分组成。可以看出，输入截面沿整个长度分布有损失，中间有叶尖损失;而输出部分在电路中有分布损耗，而在末端没有损耗。输入部分具有均匀的螺距，而输出部分具有速度锥度，并在末端减小螺距以提高效率。该器件在线性区域内工作，但仍能产生所需的射频功率。

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Prediction of cold-test and hot-test characteristics of a high efficiency linear C-band helix TWT using HFSS, CTLSS, Christine 1-D/3-D

A C-band helix traveling-wave tube (TWT) was modeled using HFSS/CTLSS (3-D electromagnetic codes) to predict the dispersion and impedance characteristics of different sections of the device. This particular TWT consists of two RF sections separated by a sever. As can be seen the input section has distributed loss along the entire length, with a tip loss in the middle; whereas the output section has distributed loss in part of the circuit, with no loss toward the end. The input section has a uniform pitch, whereas the output section has a velocity tapering with a reduction in pitch at the end to improve efficiency. This device operates in the linear region yet producing the desired RF power.

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Fifth IEEE International Vacuum Electronics Conference (IEEE Cat. No.04EX786)

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