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Old June 9th 11, 08:06 AM posted to rec.radio.amateur.antenna
camelot camelot is offline
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First recorded activity by RadioBanter: Jan 2007
Posts: 15
Default Standing waves on antenna, doubts!

Hello, I have some doubts about standing waves on antennas that I hope
you could clarify!
As far as I understood, in a generic transmission line where we want
only carry power from a source to a load, we need to cancel the
reflected wave by adapting the load with the impedance of the line.
The result of this operation is S11=S22=0 and VWWR=1 that means no
standing waves.
As far as I understood, in an antenna we want to also avoid standing
waves by having VWWR=1 in order to avoid overloading problem to the
power stage...
From theory I know that the best radiating condition for an antenna is
when it resonates, that is, when there is a standing wave… is that
correct? How this condition is compatible with a VWWR=1 (no standing
waves) for a good antenna matching? Is there something that I’m not
catching?

Regards,

Camelot