On Sep 23, 1:12*pm, Szczepan Białek wrote:
" In 0.05 no currents at all at the *feed point" means, of
course, that the current is very very small.
However small it is, it is still the greatest current value that
exists on that dipole.
RF wrote:
The current distribution in such short dipoles is triangular in form:
highest at the center, and zero at the ends of the dipole arms.
S* answered:
No such oddity in the reality.
No matter how short a dipole antenna is in wavelengths, current is
always zero at the ends of each arm of that dipole.
The current distribution on a thin, wire dipole takes the form of a
sine wave. If the antenna is short, as in this case, then the only
part of the sine that can exist is nearly linear. Hence the
~triangular shape for the total current on the dipole.
Confirm this for yourself using Figure 2-2(b) on page 2-4 of the
following link.
http://books.google.com/books?id=xTS... tenna&f=false
RF