View Single Post
  #124   Report Post  
Old June 10th 05, 06:50 PM
Cecil Moore
 
Posts: n/a
Default

Ian White GM3SEK wrote:
None of those observations proves the existence of "waves of energy and
power". They can all be explained more simply and easily in terms of
waves of voltage and/or current (or in circulators and waveguide, waves
of E-field and/or H-field).


Ian, I haven't seen you, or anyone else, offer proof that
"waves of voltage and/or current" can exist without energy.
I always thought ExH equals the power in the Poynting Vector
for any EM wave whether it be an RF wave or a light wave.

The world is still waiting for an explanation of the detailed internal
workings of *any* of those devices, done entirely in terms of "waves of
energy and power". A newsgroup limited to ASCII text is not the best
medium to attempt this... so will the forthcoming QEX article oblige?


The QEX article's present title is: "An Energy Analysis at
an Impedance Discontinuity in an RF Transmission Line".
It is mostly a review of the principles of the wave
reflection model which was invented before anyone hatched
the stupid idea that waves can exist without energy. :-)
It will be mostly old hat stuff for people who have ever
done an analysis using power reflection coefficients but
that seems to be a lost art lately.

Incidentally, a complete analysis of a Z0-matched impedance
discontinuity can be done using only an energy analysis.
If voltages and currents are actually required, their
magnitudes and phases can be calculated from the energy
components.
--
73, Cecil, http://www.qsl.net/w5dxp

----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==----
http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups
----= East and West-Coast Server Farms - Total Privacy via Encryption =----