A power amplifier driver using self-oscillating pulse-width modulators. - Willem Laflere; Michiel Steyaert; Jan Craninckx (ESSCIRC, 2007)

A Polar Modulator Using Self-Oscillating Amplifiers and an Injection-Locked Upconversion Mixer. - Willem Laflere; Michiel S. J. Steyaert; Jan Craninckx (IEEE J. Solid State Circuits, 2008)