Methods and systems for vector combining power amplification are disclosed herein. In one embodiment, a plurality of signals are individually amplified, then summed to form a desired time-varying complex envelope signal. Phase and/or frequency characteristics of one or more of the signals are controlled...http://www.google.es/patents/US20060292999?utm_source=gb-gplus-sharePatente US20060292999 - Systems and methods of RF power transmission, modulation, and amplification, including a Cartesian-Polar-Cartesian-Polar (CPCP) embodiment
Systems and methods of RF power transmission, modulation, and amplification ...