
Advanced circuit techniques,components and concepts 31
Some reflections on lines
This article examines some of the finer points of the operation and use
of transmission lines.
RF
reflections
As a National Service trainee radar fitter, I was taught that if an rf
transmission line is terminated in something other than its characteristic
impedance, then some of the energy reaching the load would be reflected
back to the source. Further, that if the source were also mismatched then
some of the reflected energy would be re-reflected back towards the load,
but that if the source were 'matched' then the reflected energy would all be
absorbed by an ...