# Reflection Coefficient

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## reflection coefficient

[ri′flek·shən ‚kō·i‚fish·ənt]
(physics)
The ratio of the amplitude of a wave reflected from a surface to the amplitude of the incident wave. Also known as coefficient of reflection.

## Reflection Coefficient

the ratio of the radiant flux reflected by a body to the radiant flux incident on it. The concept of an amplitude reflection coefficient, that is, the ratio of the amplitudes of the reflected and incident waves, is sometimes used —for example, for radio waves. In general, the reflection coefficient is the sum of a direct reflection coefficient and a diffuse reflection coefficient.

References in periodicals archive ?
Caption: Figure 2: Simulated reflection coefficients of the proposed absorber at different air thicknesses.
Table 1: Approximate value of reflection coefficients .
The reflection coefficients R are 1-[[rho].sub.sk]/[[rho].sub.0], where [[rho].sub.sk] and [[rho].sub.0] are the SW average amplitudes at x = 225-255 nm for the case with ([[rho].sub.sk]) and without ([[rho].sub.0]) the skyrmion.
Caption: FIGURE 8: Reflection coefficients of the patch antenna (a) without EBG, (b) with rectangular EBG, (c) and with circular EBG and (d) comparison between three antennas.
The first order reflection coefficients [r.sub.1] and [R.sub.1] are obtained after evaluating the integrals given in relations (3.5) or (3.6) for x [right arrow] -[infinity], and then comparing the behaviour of [[phi].sub.11](x,y) or [[phi].sub.21] (x,y) with relation (3.3) or (3.4).
In Figure 4(a), it presents the simulation result of the reflection coefficient, [S.sub.11] by varied CRS on the ground-plane.
Caption: Figure 5: The dependencies of the transmission and reflection coefficients on the inclination angle.
The fitness function is the summation of reflection coefficient values from 2 to 6 GHz band's frequencies.
The model in  provides the waveforms of transmitted field, transmitted field beyond the cylindrical slab, that is, the cloaked object, transmission coefficient, reflection coefficient (calculated by subtracting transmission coefficient from unity), and the real and imaginary components of the refractive index.
Similar to Figure 3(a), all curves of reflection coefficients have two troughs.
Three relationships (1, 2 and 3) were developed between reflection coefficients values from seismic data and well data.

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