Design Optimization of Radio Frequency Discrete Tuning Varactors

Moreira Mendes, Luís Miguel; Pires, Eduardo J. Solteiro; Oliveira, Paulo B. de Moura; Machado, José A. Tenreiro; Ferreira, Nuno M. Fonseca; Vaz, João Caldinhas; Rosário, Maria J.

http://hdl.handle.net/10400.8/12950

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Design optimization of radio frequency discrete tuning varactors.pdf	This work presents a procedure to automate the design of Si-integrated radio frequency (RF) discrete tuning varactors (RFDTVs). The synthesis method, which is based on evolutionary algorithms, searches for optimum performance RF switched capacitor array circuits that fulfill the design restrictions. The design algorithm uses the ε-dominance concept and the maximin sorting scheme to provide a set of different solutions (circuits) well distributed along an optimal front in the parameter space (circuit size and component values). Since all the solutions present the same performance, the designer can select the circuit that is best suited to be implemented in a particular integration technology. To assess the performance of the synthesis procedure, several RFDTV circuits, provided by the algorithm, were designed and simulated using a 0.18μm CMOS technology and the Cadence Virtuoso Design Platform. The comparisons between the algorithm and circuit simulation results show that they are very close,poi ting out that the proposed design procedure is a powerful design tool.	447.81 KB	Adobe PDF	Download

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Authors

Moreira Mendes, Luís Miguel

Pires, Eduardo J. Solteiro

Oliveira, Paulo B. de Moura

Machado, José A. Tenreiro

Ferreira, Nuno M. Fonseca

Vaz, João Caldinhas

Rosário, Maria J.

Abstract(s)

This work presents a procedure to automate the design of Si-integrated radio frequency (RF) discrete tuning varactors (RFDTVs). The synthesis method, which is based on evolutionary algorithms, searches for optimum performance RF switched capacitor array circuits that fulfill the design restrictions. The design algorithm uses the ε-dominance concept and the maximin sorting scheme to provide a set of different solutions (circuits) well distributed along an optimal front in the parameter space (circuit size and component values). Since all the solutions present the same performance, the designer can select the circuit that is best suited to be implemented in a particular integration technology. To assess the performance of the synthesis procedure, several RFDTV circuits, provided by the algorithm, were designed and simulated using a 0.18μm CMOS technology and the Cadence Virtuoso Design Platform. The comparisons between the algorithm and circuit simulation results show that they are very close,poi ting out that the proposed design procedure is a powerful design tool.

Description

Mendes, Luís M. Domingues - Scopus ID: 58339546000 Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) Volume 5484 LNCS, Pages 343 - 352 2009 Applications of Evolutionary Computing, EvoWorkshops 2009: EvoCOMNET, EvoENVIRONMENT, EvoFIN, EvoGAMES, EvoHOT, EvoIASP, EvoINTERACTION, EvoMUSART, EvoNUM, EvoSTOC, EvoTRANSLOG15 April 2009 through 17 April 2009 - Code 76608.

Keywords

Evolutionary algorithms analog circuit design Evolutautomated circuit synthesis radio frequency integrated circuits.

URI

http://hdl.handle.net/10400.8/12950

Citation

Mendes, L. et al. (2009). Design Optimization of Radio Frequency Discrete Tuning Varactors. In: Giacobini, M., et al. Applications of Evolutionary Computing. EvoWorkshops 2009. Lecture Notes in Computer Science, vol 5484. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-01129-0_38.