Title :
Evaluating GaN Doherty architectures for 4G Picocells, WiMax and microwave backhaul links
Author :
GiofreÌ, R. ; Piazzon, L. ; Colantonio, P. ; Giannini, F. ; Camarchia, Vittorio ; Ghione, G. ; Pirola, Marco ; Quaglia, R.
Author_Institution :
E.E. Dept., Univ. of Roma Tor Vergata, Rome, Italy
Abstract :
This paper evaluates the Doherty power amplifier architecture in terms of linearity, efficiency and design solutions. As case study four different prototypes are presented, one for 4G Picocells at 2.1 GHz, one for WiMax applications at 3.5 GHz and two for point-to-point microwave backhaul radiolinks at 7 GHz. Experimental results together with design guidelines are discussed addressing strengths and weaknesses of the Doherty architecture.
Keywords :
4G mobile communication; WiMax; gallium compounds; power amplifiers; 4G picocells; Doherty architectures; Doherty power amplifier architecture; GaN; WiMax; design guidelines; frequency 2.1 GHz; frequency 3.5 GHz; point-to-point microwave backhaul radiolinks; Bandwidth; Computer architecture; Frequency control; Frequency measurement; HEMTs; OFDM; WiMAX; Doherty Amplifier; Efficiency; Linearity; Load Microwave link; Modulation; WCDMA; WiMax;
Conference_Titel :
Multi-Conference on Systems, Signals & Devices (SSD), 2014 11th International
Conference_Location :
Barcelona
DOI :
10.1109/SSD.2014.6808832
