View Single Post
  #2   Report Post  
Old July 7th 05, 11:46 PM
Walter Maxwell
 
Posts: n/a
Default


"Owen" wrote in message
...
On Thu, 7 Jul 2005 11:23:24 -0500, (Richard
Harrison) wrote:

Owen wrote:
"Has anuypne a link to or reference to derivation of the formula?"

My 19th edition of the ARRL Antenna Book treats additional power loss
due to SWR on page 24-10.


Richard, I have an 18th edition, and the formula it gives does not
factor in the angle of the reflection, and so is an approximation.

I don't know if that applies to the 19th edition.

Back to my original post, I was not in search of a formula for an
exact solution, nor a reason to want an exact solution, but rather
whether anyone has seen the derivation of Michaels formula quoted in
QST Nov 97.

Thanks for your help.

Owen

Well, Owen, if you believe the expressions I presented in Reflections 2 are
approximate, then why do I get the correct answers?

Walt, W2DU