2014 SGR 1103 - Components and Systems for Communications Research Group TEC2014-58341-C4-3-R - SOLUCIONES DE RADIO DIGITAL PARA SISTEMAS DE COMUNICACIONES SOSTENIBLES Y RECONFIGURABLES DE PROXIMA GENERACION
A novel Doherty-like power amplifier (DPA) has been fabricated using 15 W, 2.7 GHz, GaN HEMT transistors. The quarter-wave transformer used in the classical DPA topology is replaced by a matching network including a Klopfenstein taper. From a practical prototype realization, this modification has demonstrated that the resulting DPA bandwidth (BW) is increased in comparison with the conventional topology while keeping the efficiency figures. Moreover, this design allows an
easy tuning of the grou...
Bertran, E., Mehran , Y. A wideband Doherty-like architecture using a Klopfenstein taper for load modulation. "IEEE microwave and wireless components letters", 02 Novembre 2015, vol. 25, núm. 11, p. 760-762.