三导体螺旋脉冲形成线的输出特性
Output characteristics of spiral pulse forming line with outer shield and inner conductor
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摘要: 采用横电磁波传输理论，分析了三导体螺旋脉冲形成线（PFL）（包含内筒、螺旋中筒和外筒）的脉冲形成过程，给出了螺旋PFL的波阻抗、慢波系数、输出脉冲的平顶波动幅度等特征参数的计算公式。研究表明:三导体螺旋PFL具有与螺旋传输线同样的波阻抗和慢波系数；螺旋PFL的输出脉冲平顶波动，随着慢波系数或负载阻抗的增大而减小。Abstract: Employing transmission theory of transverse electromagnetic wave, the pulse forming process of spiral pulse forming line(PFL) with outer shield and inner conductor was analyzed. The calculation formulas of characteristic parameters, such as wave impedance, slow-wave coefficient, and flat-topped fluctuate ratio of output pulse, were obtained. This kind spiral PFL is of the same wave impedance and slow-wave coefficient with spiral delayed line. The flat-topped fluctuate ratio of output pulse can be reduced with increasing slow-wave coefficient or load impedance.
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Key words:
- spiral line /
- transformer /
- long pulse /
- pulse power
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