On the Reflection Coefficient and the Reflection Loss in the Telephone Circuit

Abstract

This paper deals with a simple method for calculating the reflection loss in a telephone circuit. From the impedances Z₁ and Z₂ looking toward both direction from the point of reflection calculate the complex reflection coefficient p by the well known formula p=Z₂-Z₁/Z₂+Z₁, and effective reflection coefficient p by the formula, P=1-√|p|²sin²θ+(1-|p|cosθ)², then the reflection loss in T.U. can be calculated by loss in T.U.=20log₁₀ 1/1-p
The anthers show the comparison of calcul ted results with those attain d by some experiments, and it was found that these results coinside very close.