>
>> Several posts have referred to reflected power from a mismatched filter.
>> People have reasoned, "If the output is 3 dB down, then the power has to
>> go somewhere". But, it's also reasonable to consider that the source
>> never generated the power at all because it didn't have enough voltage
>> swing to work into a higher impedance, or enough current swing to work
>> into a lower impedance, or the reactance caused phase differences between
>> voltage and current.
>
>That certainly makes sense.
>
>The source does not have to "produce" the RF power when the load
>isn't matched. The sources we use are energy converters that
>convert a dc source to RF with a time-varying resistance.
? RE: " RF with a time-varying resistance"; It seems to me that the
"time-varying resistance" is with the amplification circuitry, and it is
not with the RF output.
>... ...
cheers, Mr. Rauch.
>...
- R. L. Measures, 805.386.3734, www.vcnet.com/measures.
end
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