Title :
On the optimal design of multi-stage cascaded transistor amplifiers with noise, gain and mismatch constraints
Author :
Calandra, Enrico F. ; Maio, Bruno Di ; Lupo, Daniele
Author_Institution :
Dipt. di Ing. Elettr., Palermo Univ., Palermo
Abstract :
The problem of evaluating the optimal performances of cascaded, unbalanced, multi-stage transistor amplifiers is addressed. In particular, a theoretically rigorous approach is proposed for the determination of a family of Optimal Design Curves (ODC´s) which express the best noise-gain tradeoff that can be achieved - at each frequency and device operating condition - when a simultaneous constraint on amplifier input VSWR is accounted for. Such curves can be used as a more meaningful starting point in practical amplifier design in place of the approximate calculations so far employed for target performance or optimization goals determination.
Keywords :
amplifiers; transistors; VSWR; multistage cascaded transistor amplifiers; noise-gain tradeoff; optimal design curves; optimization goals determination; Constraint theory; Design optimization; Electronic design automation and methodology; Frequency; Low-noise amplifiers; Minimization; Performance evaluation; Performance gain; Signal design; Telecommunications;
Conference_Titel :
Circuit Theory and Design, 2007. ECCTD 2007. 18th European Conference on
Conference_Location :
Seville
Print_ISBN :
978-1-4244-1341-6
Electronic_ISBN :
978-1-4244-1342-3
DOI :
10.1109/ECCTD.2007.4529589
