Title :
Numerical optimization of broadband nonlinear microwave circuits
Author :
Rizzoli, V. ; Costanzo, A. ; Cecchetti, C.
Author_Institution :
Dipartimento di Elettronica, Inf. e Sistemistica, Bologna Univ., Italy
Abstract :
The implementation of extensive optimization capabilities in a general-purpose harmonic-balance simulator is described. Two different optimizers suitable for autonomous and forced circuits, respectively, are discussed in detail, and their merits and limitations are compared. The efficient numerical optimization of nonlinear microwave circuits specified over a finite frequency band is demonstrated. An example is given, showing that the procedure is very efficient, thus opening the way to the straightforward design of some modern monolithic microwave integrated circuit (MMIC) devices such as multioctave distributed mixers and power amplifiers.<>
Keywords :
MMIC; microwave amplifiers; mixers (circuits); nonlinear network synthesis; optimisation; power amplifiers; autonomous; broadband nonlinear microwave circuits; finite frequency band; forced circuits; harmonic-balance simulator; monolithic microwave integrated circuit; multioctave distributed mixers; numerical optimization; optimization capabilities; power amplifiers; Circuit simulation; Distributed amplifiers; Frequency; MMICs; Microwave amplifiers; Microwave circuits; Microwave devices; Microwave integrated circuits; Monolithic integrated circuits; Power amplifiers;
Conference_Titel :
Microwave Symposium Digest, 1990., IEEE MTT-S International
Conference_Location :
Dallas, TX
DOI :
10.1109/MWSYM.1990.99588
