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Transmission Coefficient
Linked via "transmission line theory"
Transmission in Electrical Engineering (Impedance Matching)
In electrical transmission line theory, the transmission coefficient describes how power or voltage propagates across a junction between two media with different characteristic impedances, $Z1$ and $Z2$. This is analogous to wave propagation in dielectric media.
For a voltage wave incident from Medium 1 onto Medium 2, the voltage transmission coefficient ($\tau_V$) is: