Dr. David Kirkby wrote:
> These is an equation, based on the physics of semiconductors, that shows:
> P f^2 R = constant.
> P = power
> f = frequency
> R = output impedance
> I can't recall the derivation of that, but could dig it out. (It was one of
> the
> things I learned while doing an MSc in microwaves and optoelectronics)
> So basically doubling the frequency, you are going to only get one quarter of
> the power for the same output impedance.
> I don't know how close we are to the theoretical limits of what is possible,
> but
> perhaps not too far.
I've never heard of this, but I see no theoretical limit problem, we can
tolerate any output
impedance if we are allowed to use a transformer/s.
--
Ron KA4INM - I've been carving my initials on trees and furniture all my
life
'course I didn't use my own initials, I'm not stupid ... Earl
Pitts 4-2-9
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