Multiobjective optimization

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review

24 Scopus Citations
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Original languageEnglish
Article number6012326
Pages (from-to)120-133
Journal / PublicationIEEE Microwave Magazine
Volume12
Issue number6
Publication statusPublished - Oct 2011

Abstract

The optimization of a differential phase shifter through a multiobjective optimization algorithm was examined. The optimization algorithms given in IE3D handle multiobjective optimization by combining the objective values as a weighted sum and another type of optimization routine uses the Pareto-dominance principle in handling multiobjective optimization. Differential phase shifters were used to produce the necessary differential phase difference between the phase changes across a main line and a reference line. The main line of the Schiffiman phase shifter was composed of a coupled line with an even mode impedance and odd mode impedance. The solution selected from nondominated solution sets obtained by Multiobjective Evolutionary algorithm (MOEA) was fabricated and measured. The results showed that the 90° phase shifter operated at 2.70-5.29 GHz with a differential phase shift of 90° ± 5°, while the 45° phase shifter operated at 3.21-5.00 GHz with a differential phase shift of 45° ± 5°.

Citation Format(s)

Multiobjective optimization. / Yeung, Sai Ho; Man, Kim Fung.

In: IEEE Microwave Magazine, Vol. 12, No. 6, 6012326, 10.2011, p. 120-133.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review