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Old February 26th 05, 09:55 PM
John Woodgate
 
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I read in sci.electronics.design that Cecil Moore
wrote (in ) about '1/4 vs 1/2 wavelength antenna',
on Sat, 26 Feb 2005:
Rich Grise wrote:
And another thing - in a transmitter, the impedance matching only happens
at the one frequency, which is a lot different scenario from, say, a
stereo. This could be a confusion factor here.


Therefore, the key to converting the non-linear source to
an equivalent linear source lies in a Fourier analysis?
Do the other-than-fundamental terms in the Fourier analysis
encounter a low impedance or a high impedance?


Yes. Not facetious; the impedance matching network can be configured to
minimise individual or a few harmonic emissions by adjusting its
impedances at harmonic frequencies. Either high or low (or perhaps both)
can minimise the emission, depending on the configuration.
--
Regards, John Woodgate, OOO - Own Opinions Only.
The good news is that nothing is compulsory.
The bad news is that everything is prohibited.
http://www.jmwa.demon.co.uk Also see http://www.isce.org.uk