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Old April 10th 07, 03:25 PM posted to rec.radio.amateur.antenna
Cecil Moore[_2_] Cecil Moore[_2_] is offline
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First recorded activity by RadioBanter: Mar 2007
Posts: 3,521
Default Why S - Parameter at High frequencies?

Frank wrote:
The problem with some of the other parameters is that
short and open circuits are required to obtain the data.
This can cause instability in active devices.


And that, in a nutshell, is why Keith's analysis
is invalid for real-world ham transmitters. In
a real-world transmitter, incident reflected
waves do not flow through the source like they
do in the model in the human mind.
--
73, Cecil http://www.w5dxp.com