wn1b8 wrote:
>
> List members,
>
> Is there any reason that a circulator could not be used as an
> isolator? Assuming appropriate power handling capabilities, I would
> think the former would work just fine. Amp output into port 1,
> Bp/antenna on port 2, dummy load on port 3, and any reflected power
> from the Bp/antenna should be absorbed by the dummy load. Am I
> missing anything here?
>
> Scott Madison, WN1B
Nope-that's basically the way they normally get used. I assume when you
say Bp/antenna that you mean a band-pass cavity in line. Normally a
low-pass filter is used, not a cavity, because cavities can frequently
be resonant on the second harmonic (or higher), which is what you're
trying to filter out. Circulators normally generate harmonics.
--
Jim Barbour
WD8CHL
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