Title :
Power amplifier design accounting for input large-signal matching
Author :
Di Falco, Sergio ; Raffo, Antonio ; Vadala, Valeria ; Vannini, Giorgio
Author_Institution :
Microwave Electron. for Commun. M.E.C. srl, Bologna, Italy
Abstract :
The manuscript details a high power amplifier (PA) design technique, based on time-domain large-signal measurements. In particular, large-signal input impedance matching has been carried out to ensure optimal power transfer under actual device operation. With the aim of demonstrating the validity of the proposed technique, a PA has been realized with a 20-mm GaN HEMT power bar. The measured performance of the PA perfectly matches the expected predictions based on large-signal measurements carried out on a 2-mm GaN elementary cell.
Keywords :
HEMT integrated circuits; MMIC power amplifiers; impedance matching; integrated circuit design; integrated circuit measurement; time-domain analysis; GaN; HEMT power bar; PA design technique; large-signal input impedance matching; optimal power transfer; performance measurement; power amplifier design; size 20 mm; time-domain large-signal measurements; Bandwidth; Gallium nitride; Impedance; Microwave amplifiers; Power amplifiers; Power generation; Time-domain analysis; Microwave amplifier; large-signal measurements; power amplifiers; waveform engineering;
Conference_Titel :
Microwave Integrated Circuits Conference (EuMIC), 2012 7th European
Conference_Location :
Amsterdam
Print_ISBN :
978-1-4673-2302-4
Electronic_ISBN :
978-2-87487-026-2
