释义 |
propagation constant
propagation constant[‚präp·ə′gā·shən ‚kän·stənt] (electromagnetism) A rating for a line or medium along or through which a wave of a given frequency is being transmitted; it is a complex quantity; the real part is the attenuation constant in nepers per unit length, and the imaginary part is the phase constant in radians per unit length. |