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Old August 18th 03, 08:17 PM
W5DXP
 
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Dr. Slick wrote:
From Pozar's Microwave Engineering (Pg. 606):

Reflection Coefficient looking into load = (Zl-Zo)/(Zl+Zo)


Unfortunately, the reflection coefficient is also defined as:
Sqrt(Pref/Pfwd) which is usually only equal to your equation
in a one-port network. For a two-port network, those two
values of reflection coefficient are not usually equal. Better
define things better. For a two-port network, Z1 is NOT the
physical Z1. It is the apparent (virtual) Z1 calculated from
the total voltage to total current ratio which is often
different from the physical Z1 above.
--
73, Cecil http://www.qsl.net/w5dxp



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