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Old April 21st 07, 01:17 AM posted to rec.radio.amateur.antenna
Gene Fuller Gene Fuller is offline
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First recorded activity by RadioBanter: Jul 2006
Posts: 342
Default Analyzing Stub Matching with Reflection Coefficients

Cecil Moore wrote:
Gene Fuller wrote:
Where are the equations that describe this "delta-t" stuff that you
keep bringing up?


Actually, Gene, the example I just posted for Jim will answer
your question.

SGCL1 is turned on. SGCL2 is turned off.

100W | 25W
50 ohm---50 ohm line---+---291.4 ohm line---291.4 ohm
SGCL1 --Prev1 | SGCL2

When SGCL2 is turned on let t=0 be the time when the
SGCL2 source wave reaches the impedance discontinuity
at point '+'. How long does it take for that source
wave to affect Prev1? Whatever length of time that is,
that's the length of delta-t.



Cecil,

BZZZZT! Wrong answer.

We are talking steady state, remember? You need to dig a bit deeper. I
won't hold my breath waiting. I will give you extra credit for a vivid
imagination, however.

73,
Gene
W4SZ