Roy Lewallen wrote:
Can the traveling wave
analysis be used to explain the inductor currents in this model?
In this new configuration, the traveling wave current
encounters a short-circuit to ground instead of the
open-circuit in a normal antenna. And that forward current
is reflected by that short circuit. In the shorted case
its phase doesn't change so the forward and reflected
currents add instead of subtrace. But their phasors are
still rotating in opposite directions. Please note that
the phase shift in the standing wave current is almost
zero throughout the system, i.e. standing wave phase
information has still been lost. We still don't know
the electrical length of the coil for the same reasons
we didn't know it before. Below 'func' stands for
'function of'.
The standing wave current reported by EZNEC is of the
form: func(kz)*func(wt) = fun(kz+wt) + func(kz-wt)
Is there any way in EZNEC to subtract out the func(kz-wt)
reflected term and leave just the forward term?
--
73, Cecil
http://www.qsl.net/w5dxp