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Old March 2nd 07, 07:35 PM posted to rec.radio.amateur.antenna
Dave Dave is offline
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First recorded activity by RadioBanter: Jul 2006
Posts: 444
Default tuner - feedline - antenna question ?

chuck wrote:
Dave wrote:

Cecil Moore wrote:

Dave wrote:

Cecil, as an engineer you should stick with standard vocabulary.



Just trying to appease the physicists, Dave. They are
arguing that it is not power until work is done.



A Poynting vector is watts/square angle [watts/degree^2]. It is not
being dissipated in free space. It is Diverging [vector relationship].
How do the physics type adjust their definition to include the
Poynting Vector?

I'll sit back and read the follow up posts for the next few weeks :-)



And now one for the engineers!

How do you interpret a non-zero Poynting vector determined by static E-
and H- fields?

73,

Chuck


Static fields, by definition, do not have a time varying divergence. No time
variation, no Poynting Vector. Nes Pas?