An 18-34-GHz dynamic frequency divider based on 0.2- mu m AlGaAs/GaAs/AlGaAs quantum-well transistors. - Andreas Thiede; Manfred Berroth; Ulrich Nowotny; Jorg Seibel; Roland Bosch; Klaus Köhler; Brian Raynor; Joachim Schneider (IEEE J. Solid State Circuits, 1993)