螺旋线行波管中螺距跳变幅度对输出功率的影响

通过对具有动态速度渐变（咖特性的注波互作用机理和谐波抑制技术的讨论得出了合理螺旋线的参量够提高螺旋线行波管频带内输出功率的初步结论。通过数值计算对螺距跳变幅度对输出功率影响进行了重点研究，进一步印证了初步结论。并得出了恰当的螺距跳变幅度可抑制二次谐波。增强基波，提高频带内输出功率的重要结论。所得结论为螺旋线慢波系统的设计工作的进一步开展指明了一个方向。

Affections of Step Amplitude of Helix Pitches to Output Power in Helix TWTs

After getting the initial conclusion by the discussions of the operation mechanism of the beam and the wave which have the character of the dynamic velocity taper and the reduced harmonic that the proper parameters of the helix can improve the output power of helix TWTs, the results of the numerical values of the affections of step amplitude of helix pitches to output power consist with the initial conclusion, and conclude that the proper step amplitude of helix pitches can reduce the harmonic mode, raise the fundamental mode , and improve the output power within overall bandwidth. The result can point out a way for the further developing of design of helix slow wave structures.