| 单词 | propagation constant |
| 释义 | > as lemmaspropagation constant propagation constant n. Physics a quantity representing the loss of amplitude, or the retardation of phase, of a wave per unit distance travelled; spec. the coefficient of the distance in an equation representing the propagation of a wave. ΘΚΠ the world > matter > physics > mechanics > types of motion > [noun] > wave > specific coefficients propagation constant1911 wavelength constant1940 propagation coefficient1943 propagation factor1955 1911 J. A. Fleming Propagation Electr. Currents ii. 68 P is a complex quantity and therefore may be written in the form α + jβ. It is called the Propagation constant of the line. 1963 R. W. Ditchburn Light (ed. 2) ii. 28 The wave~length..is denoted by λ. An associated constant κ = 2π/λ is called the wavelength constant (or propagation constant). 1999 Science 3 Sept. 1537/2 The wave vector component along the waveguide, known as the propagation constant β, determines whether light propagates or is evanescent in any part of the guide. < as lemmas |
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