Arbitrary Waveform Generator Using a Nonlinear Transmission Line Harmonic Generator and a Phase Shifter

In this paper, we verified an arbitrary waveform generator based on a nonlinear transmission line (NLTL). The fabricated arbitrary waveform generator consists of a NLTL harmonic generator, 10dB coupled line couplers, Wilkinson power dividers, band pass filters, low noise amplifiers (LNA), variable attenuators, and NLTL phase shifters. By controlling the bias voltage of attenuators and phase shifters, it is possible to generate a desired arbitrary waveform such as a triangle waveform and a sawtooth waveform in a microwave frequency range.