On 27 Feb 2005 18:05:36 -0800, wrote:

Still here, not quite sure who to believe, but enjoying the ride :-)

Hi OM,

The long and short of it (apropos of your antenna spec), is that your
shorter antenna will need a new matching circuit (apropos of the
smaller antenna's size) for the related issues of maximum transfer of
power. The reasons for matching may vary (and with it, efficiency),
but not so you would notice. If you did notice, then your production
tolerance (if not customer application) variations will kill you in
the marketplace (fact of life in a Kapitalistic world). No amount of
armchair philosophies about Thevenin's theorem will replace that loss.

73's
Richard Clark, KB7QHC

Richard Clark wrote:


No amount of armchair philosophies about
Thevenin's theorem will replace that loss.

Thevenin's is a linear theorem. Large signal devices are not linear. (Hey,
maybe triodes are, but I don't use them for PA's.)

There is no armchair philosophy about Thevenin's theorem because it does not
apply in the RF PA situation. Your's is a red herring.