Dominique Schreurs is Associate Professor in ESAT-TELEMIC, Telecommunications and Microwaves, Department of Electrical Engineering, Katholieke Universiteit Leuven, where she also gained her Ph.D. in Electrical Engineering in 1997. She is a Senior Member of the IEEE and Chair of the IEEE MTT-11 technical committee on microwave measurements. Máirtín O'Droma is Director of the Telecommunications Research Centre, and Senior Lecturer in the Department of Electronic and Computer Engineering at the University of Limerick. A Fellow of the IET and Senior Member of the IEE, he is a founding partner and steering committee member of TARGET (Top Amplifier Research Groups in European Team) and a section head of the RF power linearization and amplifier modeling research strand. Anthony A. Goacher is Research Projects Manager of the Telecommunications Research Centre, University of Limerick. A Physicist with microwave R&D experience, he has an MBA, is a Member of the IET, an Associate Member of the Institute of Physics, and has held a senior management position in the electronics industry for 20 years. Michael Gadringer is a Research Assistant in the Institute of Electrical Measurements and Circuit Design, Vienna University of Technology. He is currently involved in the design of linearized power amplifiers and device characterization.