Experimental time-domain evaluation and simulation of high power GaN HEMTS for RF Doherty Amplifier design - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2015

Experimental time-domain evaluation and simulation of high power GaN HEMTS for RF Doherty Amplifier design

(1) , (1) , (1) , (1) , (2) , (2) , (2)
1
2
Lotfi Ayari
  • Fonction : Auteur
  • PersonId : 978322
Guillaume Neveux
  • Fonction : Auteur
  • PersonId : 917714
Denis Barataud
Mohammed Ayad
  • Fonction : Auteur
  • PersonId : 978298
Christophe Chang
  • Fonction : Auteur
  • PersonId : 978300

Résumé

This paper presents an automatized, on-wafer time-domain active load-pull set-up developed for a Doherty-oriented characterization of High Power GaN High-Electron Mobility Transistors (HEMTs). From the on-wafer measured Time-Domain Waveforms (TDW) acquisition, all data required for the design of a Doherty Power Amplifier (DPA) are then directly extracted. With this measurement process, designers have then the direct knowledge of the optimal characteristics of high power transistors along the Output Back-Off (OBO). They also can deduce the maximum obtainable operating bandwidth of the final Doherty PA. Simultaneously to this measurement process, simulations based on the use of non-linear foundry electro-thermal model have also been performed to prove the validity of the method to predict Power Added Efficiency (PAE) performances versus OBO. Measurement and simulations have been applied to an 8×125μm AlGaN/GaN GH25 transistor from UMS foundry.
Fichier non déposé

Dates et versions

hal-01286576 , version 1 (11-03-2016)

Identifiants

Citer

Lotfi Ayari, Guillaume Neveux, Denis Barataud, Mohammed Ayad, Estelle Byk, et al.. Experimental time-domain evaluation and simulation of high power GaN HEMTS for RF Doherty Amplifier design. Microwave Integrated Circuits Conference (EuMIC), 2015 10th European, IEEE, Sep 2015, PARIS, France. pp.361-364, ⟨10.1109/EuMIC.2015.7345144⟩. ⟨hal-01286576⟩

Collections

UNILIM CNRS XLIM
65 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook Twitter LinkedIn More