Abstract
We investigate the three-wave mixing process that is induced by nonlinear envelope pulse collisions in composite right- and left-handed transmission lines with regularly spaced Schottky varactors. For left-handed waves, the wave number decreases as the frequency increases; this results in the resonant interaction of colliding left- and right-moving waves. In this study, we introduce design criteria for the generation efficiency of sum frequency waves using the derivative expansion method; we also introduce a method of generating pulsed second-harmonic waves.
