Energy efficient and wideband class-J doherty power amplifier

Sajedin, Maryam; Elfergani, Issa; Rodriguez, Jonathan; Abd-Alhameed, Raed; Fernández Barciela, Mónica; Violas, Manuel; Abdulkhaleq, Ahmed

doi:10.1109/CSNDSP49049.2020.9249642

Sajedin, Maryam; Elfergani, Issa; Rodriguez, Jonathan; Abd-Alhameed, Raed; Fernández Barciela, Mónica

; Violas, Manuel; Abdulkhaleq, Ahmed

Date: 2020-07-20

UNIVERSAL IDENTIFIER: http://hdl.handle.net/11093/3513

EDITED VERSION: https://ieeexplore.ieee.org/document/9249642/

UNESCO SUBJECT: 3307.08 Dispositivos de Microondas ; 3307.14 Dispositivos Semiconductores ; 3307.92 Microelectrónica. Tecnologías III-V y Alternativas

DOCUMENT TYPE: conferenceObject

Abstract

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.

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