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A wideband Doherty-like architecture using a Klopfenstein taper for load modulation

Autor
Bertran, E.; Mehran , Y.
Tipus d'activitat
Article en revista
Revista
IEEE microwave and wireless components letters
Data de publicació
2015-11-02
Volum
25
Número
11
Pàgina inicial
760
Pàgina final
762
DOI
https://doi.org/10.1109/LMWC.2015.2479847 Obrir en finestra nova
Projecte finançador
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
Repositori
http://hdl.handle.net/2117/79897 Obrir en finestra nova
URL
http://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=7295643 Obrir en finestra nova
Resum
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...
Citació
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.
Paraules clau
Doherty power amplifier (DPA), Drain efficiency, Fractional bandwidth, Gallium nitride (GaN), Klopfenstein taper
Grup de recerca
CSC - Components and Systems for Communications Research Group

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