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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.



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After the signal impinged back from the target to the n-th receiver, the echo is: [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII] (2) where [gamma] is the complex reflection coefficient of the target, [[tau].
eff] is the effective dielectric constant of substrate material, |R| is the reflection coefficient at the end of the line and its limiting value lies in between 0 and 1, and [psi] is the phase angle between the incident wave and the reflected wave.
Signal path reflections are a concern because if the reflection coefficient when crossing a split in a plane is high, then the signal will be distorted.
 
 
 
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