Harmonic Load Pull... a View on the Evolution...

My View on the Evolution of Harmonic Load Pull

Christos Tsironis...

Let us commence with a simple, true, and still, for a long time ignored fact: “Load Pull using wide-band (also misrepresented as ‘fundamental’) tuners is nonsense”. It is nonsense because high power transistor operation creates harmonic signals and wideband tuners, while on one hand create the desired impedance at Fo, they also create uncontrollable impedances at the harmonic frequencies 2Fo, 3Fo etc.

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