Under this condition,the dispersion profile,the position of attenuator,server and resynchronization designs for the octave helix TWT are discussed. 在此基础上,探讨了色散曲线布局,衰减器配置,切断位置,再同步设计等倍频程螺旋线行波管的设计方法。
The effective permeability and permittivity tensors are calculated, the dispersive curves are presented, and the negative refractive condition is obtained by analysis. 分析得到了等效磁导率和等效介电常数张量,做出了色散曲线,获得了负折射率条件。