波导

The cut-off characteristics,bandwidth characteristis,and characteristic impedance of dominant mode of this pillowy waveguide are analyzed.

析了枕形波导的截止特、带宽特及主模的阻抗特。

An optical fiber is a dielectric (nonconductor of electricity) waveguide made of glass or plastic.

光种介质（绝缘体电）波导的璃或塑料。