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Old March 2nd 07, 07:41 PM posted to rec.radio.amateur.antenna
art art is offline
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Default tuner - feedline - antenna question ?

On 2 Mar, 11:35, Dave wrote:
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?- Hide quoted text -

- Show quoted text -


Then what you do is add a time varying field to a static field and add
something like " during a period of time " to Gausses law.
What on earth is your problem? Show a bit of inititive !
Art

 
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