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The reflection coefficient at the open-circuited end of a transmission line

  • The reflection coefficient at the open-circuited end of a transmission line Unity.
  • The reflection coefficient at the open-circuited end of a transmission line is +1.
  • When a transmission line is terminated in an open circuit, the incident voltage wave is reflected back towards the source end of the line.
  • The reflection coefficient (Γ) is a measure of the magnitude and phase of the reflected wave compared to the incident wave.

For an open-circuited line, the reflection coefficient can be expressed as:

Γ = (ZL - Z0) / (ZL + Z0)

where

ZL is the characteristic impedance of the load (in this case, infinity for an open circuit)
Z0 is the characteristic impedance of the transmission line.