In message <6CEB3A36096CD2119FEE00A0C9410EC22284C8@excalibur.swindon.msl
.mitel.com>, Peter Chadwick <Peter_Chadwick@mitel.com> writes
>
>steve says:
>
> >I've not modelled it, but I think the load on the output side of a
> >harmonic filter will have insignificant effect (a few dB in typ.
>30+) on
> >harmonic attenuation with most filter topologies.
>
>
>Depends on the filter and the actual load impedance at the frequency in
>question. You can lose as much as 20dB of attenuation - although the
>likelihood of that much is probably on a par with winning the lottery -
>unless it just happens to be a situation where Murphy works overtime.
Good point - if there's more than one section in the filter I'd agree
that the likelyhood is so small as to be ignored.
Steve
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