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dc.contributor.authorDobes, Josef
dc.contributor.authorMichal, Jan
dc.contributor.authorBiolkova, Viera
dc.identifier.citationRadioengineering. 2013, vol. 22, č. 1, s. 136-152. ISSN 1210-2512cs
dc.description.abstractThe multiobjective optimization provides an extraordinary opportunity for the finest design of electronic circuits because it allows to mathematically balance contradictory requirements together with possible constraints. In this paper, an original and substantial improvement of an existing method for the multiobjective optimization known as GAM (Goal Attainment Method) is suggested. In our proposal, the GAM algorithm itself is combined with a procedure that automatically provides a set of parameters -- weights, coordinates of the reference point -- for which the method generates noninferior solutions uniformly spread over an appropriately selected part of the Pareto front. Moreover, the resulting set of obtained solutions is then presented in a suitable graphic form so that the solution representing the most satisfactory tradeoff can be easily chosen by the designer. Our system generates various types of plots that conveniently characterize results of up to four-dimensional problems. Technically, the procedures of the multiobjective optimization were created as a software add-on to the CIA (Circuit Interactive Analyzer) program. This way enabled us to utilize many powerful features of this program, including the sensitivity analyses in time and frequency domains. As a result, the system is also able to perform the multiobjective optimization in the time domain and even highly nonlinear circuits can be significantly improved by our program. As a demonstration of this feature, a multiobjective optimization of a C-class power amplifier in the time domain is thoroughly described in the paper. Further, a four-dimensional optimization of a video amplifier is demonstrated with an original graphic representation of the Pareto front, and also some comparison with the weighting method is done. As an example of improving noise properties, a multiobjective optimization of a low-noise amplifier is performed, and the results in the frequency domain are shown. Finally, a necessity of a use of metaheuristic methods at least with a combination with the classical ones is demonstrated.en
dc.publisherSpolečnost pro radioelektronické inženýrstvícs
dc.rightsCreative Commons Attribution 3.0 Unported Licenseen
dc.subjectMultiobjective optimizationen
dc.subjectPareto fronten
dc.subjectPareto optimal seten
dc.subjectnoninferior solutionsen
dc.subjectgoal attainment methoden
dc.subjectsimulated annealingen
dc.subjecthybrid methods.en
dc.titleMultiobjective Optimization for Electronic Circuit Design in Time and Frequency Domainsen
eprints.affiliatedInstitution.facultyFakulta eletrotechniky a komunikačních technologiícs

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Creative Commons Attribution 3.0 Unported License
Except where otherwise noted, this item's license is described as Creative Commons Attribution 3.0 Unported License