Title :
A waveform engineering approach to the design of improved efficiency wideband MMIC amplifiers
Author :
FitzPatrick, Dominic ; Saini, R. ; Lees, J. ; Benedikt, J. ; Cripps, S.C. ; Tasker, P.J.
Author_Institution :
PoweRFul Microwave, Ryde, UK
Abstract :
This paper describes a design methodology based on waveform engineering within a harmonic active load-pull system and utilizing the Cardiff Direct Look-Up Table (DLUT) model. The process seeks to address some of the key issues facing designers when using nonlinear simulation of high power microwave amplifiers: model validity, boundary conditions and yield. The application of this process to the design of a 0.5 W, 5-10 GHz GaAs pHEMT with good PAE is detailed.
Keywords :
III-V semiconductors; MMIC power amplifiers; gallium arsenide; power HEMT; table lookup; Cardiff direct look-up table model; GaAs; frequency 5 GHz to 10 GHz; harmonic active load-pull system; high power microwave amplifiers; nonlinear simulation; pHEMT; power 0.5 W; waveform engineering approach; wideband MMIC amplifiers; Analytical models; Current measurement; Impedance; Impedance measurement; Load modeling; Optimized production technology; Performance evaluation; CAD modelling; MMIC design; load pull; nonlinear design; transistor characterisation;
Conference_Titel :
Wireless and Microwave Technology Conference (WAMICON), 2011 IEEE 12th Annual
Conference_Location :
Clearwater Beach, FL
Print_ISBN :
978-1-61284-081-9
DOI :
10.1109/WAMICON.2011.5872859
