Angular Momentum Radio — Principles and Techniques Theoretical background and experimental confirmation BO THIDÉ 1,2 FABRIZIO TAMBURINI 2 1 Swedish Institute of Space Physics (IRF), Uppsala, Sweden Department of Physics and Astronomy, Uppsala University, Sweden 2 Twist Off S.R.L, Padua, Italy Department of Physics and Astronomy, University of Padua, Italy Wireless World Research Forum Meeting 31 22–24 October, 2013, Vanvouver, BC, Canada