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Old October 21st 07, 01:37 AM posted to rec.radio.amateur.antenna
art art is offline
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First recorded activity by RadioBanter: Sep 2006
Posts: 1,188
Default "Balancing" versus "cancelling"

On 20 Oct, 15:12, Ed G wrote:
Looking thru various antenna pages on the web and I continually find
reference
to inductance CANCELLING capacitance.
The operative word should be BALANCING and the difference is important
. In all cases the capapicitor is still there and operative
as is the inductance.One cannot say they are cancelled so they can be
disregarded.
You cannot make either of them inoperative or of no consequence even
in the case where a clockwise
wound inductance is in series with a counterclockwise inductance since
by definition
both are energy containers. When you have a resistive impedance for
a full wavelength without a reactive component per se what it means is
that the energy contained in each of the energy containers are equal
thus allowing for symetry as in a loss less pendulum. If on does not
have a full wave length you can still have equal energy sinks but
their release of energy is not synonymous with each other thus there
is no symetry.
So concentrate on the word "balance" or "equilibrium" when maximum
efficiency is required.
Best regards
Art Unwin....KB9MZ......xg


I see your point, but I think the issue you are having with
"balance" vs. "cancel" is more semantics than functional. It is easier
to perceive the issue as a cancellation when making calculations and
design, I think.

Ed K7AAT- Hide quoted text -

- Show quoted text -


Yes that may be true but with the increasing reliance on mathematics
and computors
the gimmicks that come with mathematics are distorting things. Tho an
inductance
may be "cancelled" out it is still there which created a magnetic
field which may
or may not be affected by an alternately counter wound inductance
since energy is still
being used to create a magnetic field amoungst other things. I would
imagine if
the inductances were used for storing energy mathematically that fact
would be
hidden leading research into a incorrect direction.
For me who is working around the LC ratio with respect to antennas
Ithere are advantages
for maximum capacitance and inductance vessels for max time varience
of energy discharge
while at the same time keeping to the required LC ratio at point of
feed since the
larger the storage vessel the faster the energy release or explosion
which then means
a higher velocity for free electrons to carry communication.
Note with respect to the H bomb tests in the Pacific where the more
powerfull explosion
wiped out the Honolulu electrical grid which had not happened before
thus the velocity
of the explosion or release had a direct relationship with radiation.
Best regards
Art