Cecil Moore wrote:
Owen Duffy wrote:
if by 'changing' you mean 'changing with displacement or position', to
make these statements true, you must be talking about lossless or
distionless lines. If your entire discussion is premised on this, then
can your methods / formulas solve practical lossy line problems?
Of course, that's why the feedpoint impedance of a 1/2WL
dipole is not zero ohms. Approximately 20% of the
energy on the antenna is radiated during steady-state.
To answer the question more fully: The title of my energy
article is: "An Energy Analysis at an Impedance Discontinuity
in an RF Transmission Line". Since the analysis is done at
a *point*, what happens somewhere else in a lossy line is
not a consideration. There are essentially no losses at an
impedance discontinuity *point* (or plane).
--
73, Cecil
http://www.w5dxp.com