RT conferenceObject T1 Energy efficient and wideband class-J doherty power amplifier A1 Sajedin, Maryam A1 Elfergani, Issa A1 Rodriguez, Jonathan A1 Abd-Alhameed, Raed A1 Fernández Barciela, Mónica A1 Violas, Manuel A1 Abdulkhaleq, Ahmed A2 IEEE K1 3307.08 Dispositivos de Microondas K1 3307.14 Dispositivos Semiconductores K1 3307.92 Microelectrónica. Tecnologías III-V y Alternativas AB This paper presents a systematic design technique for a wideband GaN HEMT Class-J Doherty amplifier based on the second harmonic tuning. Following a theoretical explore on the expanded design space for a dynamic load modulation, the output matching networks of both Carrier and Peaking amplifiers are synthesized to satisfy the Class-J load requirement. A wideband Class J DPA with a symmetrical architecture is designed as a proof-of-concept to operate over a 1.5 to 3.2 GHz band frequency and delivers 40%-47% power added efficiency. SN 9781728167435 YR 2020 FD 2020-07-20 LK http://hdl.handle.net/11093/3513 UL http://hdl.handle.net/11093/3513 LA eng NO Agencia Estatal de Investigación | Ref. TEC2017-88242-C3-2-R DS Investigo RD 05-dic-2023