Effects of dielectric discontinuity on the dispersion characteristics of the tape helix slow-wave structure with two metal shields
Effects of dielectric discontinuity on the dispersion characteristics of the tape helix slow-wave structure with two metal shields
复制标题
介电不连续性对两金属屏蔽带螺旋慢波结构色散特性的影响
DOI：
10.1017/s0263034611000826
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发表时间：
2012-09
影响因子：
0.9
通讯作者：
Feng, Jiahuai
中科院分区：
文献类型：
--
作者：
Wang, Shiwen;Fan, Xuliang;Zhang, Hongbo;Feng, Jiahuai
在带螺旋线慢波系统中，不连续的色散对系统的色散特性有很大的影响。本文分析了由内、外金属屏蔽、螺旋带、尼龙支撑和去离子水填充介质组成的螺旋带慢波系统。详细研究了由支撑介质和填充介质引起的介质不连续性对色散特性的影响。计算了系统中空间谐波的色散关系、相速度、慢波系数和电长度。结果表明，当支撑介质的介电常数小于填充介质的介电常数时，系统中空间谐波的频率升高，相速度和慢波系数增大，系统的慢波效应减弱，从而缩短了原有的电长度。在所研究的带螺旋线慢波系统的基础上，利用加速器的螺旋线脉冲形成线，在实验中测得尼龙支撑厚度为6 mm和3 mm时，系统的电长度分别为188.5 ns和200 ns。理论计算结果198 ns和211 ns与实验结果基本一致，相对误差分别仅为5%和5.5%。
In the tape helix slow-wave system, discontinuous dielectrics have great effects on the dispersion characteristics. In this paper, the tape helix slow-wave system, including an inner and an outer metal shield, tape helix, nylon support and deionized water as filling dielectric, was analyzed. Effects of dielectric discontinuity caused by the support dielectric and filling dielectric on the dispersion characteristics were studied in detail. The dispersion relations, phase velocities, slowwave coefficients and electric lengths of the spatial harmonics in the system were calculated. Results showed that, if the permittivity of support dielectric was smaller than that of the filling dielectric, frequencies of the spatial harmonics in the system rose, phase velocities and slow-wave coefficients increased, the slow-wave effect of the system was weakened so that the previous electric length was shortened. The reverse condition corresponded to the reverse results, and the electromagnetic simulation also proved it. By use of the helical pulse forming line of accelerator based on the studied tape helix slow-wave system, the electric lengths of the system were tested as 188.5 ns and 200 ns in experiment when the thicknesses of nylon support were 6 mm and 3 mm, respectively. The theoretical calculation results 198 ns and 211 ns basically corresponded to experimental results, which only had relative errors as 5 and 5.5%, respectively.
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用于螺旋水脉冲形成线充电的特斯拉脉冲变压器
影响因子：
0.9
作者：
Wang, X-X;Liu, J-L;Liu, Z-X;Liu, J.-L.;Zhan, T.-W.;Feng, J-H;Liu, Z.-X.;Wang, X.-X.;Zhang, J.-D.;Zhang, J-D;Zhan, T-W;Zhang, J.;Feng, J.-H.;Shu, T.
通讯作者：
Shu, T.
DOI：
10.1103/physrevstab.12.110401
发表时间：
2009-11
影响因子：
--
作者：
Xin-bing Cheng;Jinliang Liu;Yu Zhang;Jia-huai Feng;B. Qian
通讯作者：
Xin-bing Cheng;Jinliang Liu;Yu Zhang;Jia-huai Feng;B. Qian
DOI：
10.1109/modsym.1988.26298
发表时间：
1988-06
期刊：
IEEE Conference Record of the 1988 Eighteenth Power Modulator Symposium
影响因子：
--
作者：
S. Friedman;R. Limpaecher;M. Sirchis
通讯作者：
S. Friedman;R. Limpaecher;M. Sirchis
DOI：
10.1109/t-ed.1956.14094
发表时间：
1956
期刊：
IRE Transactions on Electron Devices
影响因子：
--
作者：
H. R. Johnson;T. Everhart;A. Siegman
通讯作者：
H. R. Johnson;T. Everhart;A. Siegman
影响因子：
3.1
作者：
S. K. Datta;V. B. Naidu;P. Rao;L. Kumar;B. Basu
通讯作者：
S. K. Datta;V. B. Naidu;P. Rao;L. Kumar;B. Basu