Dan,
With 1500W into a 2.5:1 mismatch the maximum current will be 8.66A @173.2
Volts when the load is 20 ohms +/- j0. Maximum voltage is 433 @ 3.46A when
the load is 125 ohms +/-j0.
If the line is terminated in any other value found on the 2.5:1 SWR circle
on the Smith chart,
these current and voltage values can be found at the points where the
impedance on the line is 20 or 125 ohms respectively.
Hope this makes sense
73,
Bob, W5AH
-----Original Message-----
Anyone care to opine on the minimum pcb trace width appropriate (i.e. safe)
to carry 1500 watts between 1.8 and 30 Mhz into an impedance mismatch of
less than 2.5:1? Assume 2 oz copper thickness.
Almost as useful would be if someone who knows something about RF (since I
know practically nothing, which is a separate subject) can tell me the
maximum current in a wire carrying 1500 watts into a 2.5:1 mismatch.
Thanks!
***dan
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