Hi David
Not sure what you are getting at. You can set up a parallel circuit
that can be resonant on any frequency with minor change to its construction
ala a slight inductance change so there is no need to operate on a non
resonant frequency which is what I see as a huge
plus. Remember I view the parallel circuit in its macro sense in that it is
the radiator.My antennas work that way and computor programs seem to agree
with that position. Can you supply a circuit in radiator form that acts as
you describe so I can see how it differs ?
Appreciate the input as there are only a few real experts and none have sort
to disagree which is a first for this group. Kudoes to you and Richard who
are able to provide honest thought here others are stumped.
Regards
Art



"Dave Shrader" wrote in message
news:aJR1c.45282$PR3.917056@attbi_s03...
aunwin wrote:

Why must only series circuits be considered for radiators?.

Just thinking out loud. I'm not sure I'm correct but the following seems
to make a little sense.

In a series resonant circuit the net reactance is zero. As the frequency
is changed slightly from resonance the reactance increases slowly from
zero. This is algebraic addition of plus and minus terms.

In a parallel circuit the net reactance is the product of the two terms
divided by the sum [and has a high net value]. As the frequency is
changed slightly from resonance the net reactance does not change from
'zero' it changes from a high value to a lower value.

My conclusion is that a series circuit more closely matches actual
antenna performance as the antenna impedance varies from resonance.

DD

SNIPPED