On Fri, 12 Mar 2004 15:32:23 +0000, Ian Bell wrote:

In RF circles, the 'normal' way to do this would be a simple Class C
amplifier with a collector load tuned to the fifth harmonic. In calls C,
conduction only occurs for a small fraction of a cycle which produces a
correspondingly higher proportion of higher harmonics than a square wave.

But if you want to filter the 5th, it's mighty handy not to have nuch
4th or 6th around.

Is a Smith Chart how you map an "RF circle"?


John