Multiple-width pulse forming lines with build-in spiral lines
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摘要: 提出了一种螺旋线重入结构的脉冲形成线，可实现多倍脉宽输出。该结构由储能外线和重入内线组成；重入内线的外屏蔽圆筒内表面呈阶梯状，内筒为均匀螺旋线结构，实现简单；储能外线与Tesla变压器一体化。结合采用螺旋重入和二级重入结构，给出了一组10 GW功率、百ns脉宽的重入型脉冲形成线设计，形成线采用Midel 7131合成酯绝缘介质，外筒内径1 m，长度2 m。Abstract: Pulse forming lines (PFLs) with build-in spiral lines are presented in this paper, which can prolong the output pulse width of PFL. Thus PFLs consist of one outer PFL for storing energy and another build-in inner PFL. The inner PFL has an inner conductor made of even spiral lines and an outer shielding cylinder with ladder interior surfaces. The outer PFL is compact, which is based on Tesla transformer. One design example of PFLs with Midel7131 synthetic ester dielectric is given in the end of this paper, whose build-in structure combing spiral lines with double nested coaxial lines, and the result indicates that a pulse with 10 GW peak power and 100 ns width can be generated by the 2 m long PFLs with 1 m interior diameter of outer cylinder.
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Key words:
- pulsed power /
- long pulse /
- multiple-width /
- spiral line /
- high voltage
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