>
>
>
>I think I am understanding well the measured SWR vs impedance along the
>line question.
>
>My next question is: Given, say, a 100 ohm resistive antenna impedance
>(at the antenna terminals) connected to (assumed lossless) 50 ohm coax
>line, of multiple wavelengths, (producing a 2:1 SWR) What is the most
>extreme feed point impedance swing in the line and how far down the line
>is it?
> And how can one compute this mathematically, if one does not have
>access to a smith chart?
>
? My guess is that a quarter wave 50-ohm line would transform the
100-ohms to [100^2 + 50^2]^0.5 =[10k + 2.5k]^0.5 = 111.8-ohms. However,
with a half wavelength of any Z coax, the 100-ohms would not be
transformed.
later, Pat.
- Rich..., 805.386.3734, www.vcnet.com/measures.
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