Transactions of the Institute of Systems, Control and Information Engineers
Online ISSN : 2185-811X
Print ISSN : 1342-5668
ISSN-L : 1342-5668
Robust Optimum Design of Resonator-Type SAW Filters Using the Taguchi Method and a Genetic Local Search
Kiyoharu TAGAWAMikiyasu MATSUOKA
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2006 Volume 19 Issue 11 Pages 443-452


A robust optimum design technique for the structural design of resonator-type surface acoustic wave (SAW) filters is presented. For deciding desirable structures of SAW filters based on the computer simulation, the equivalent circuit model of interdigital transducer (IDT), which includes several uncertain constant parameters, is usually used. In order to cope well with the designing imperfections caused by the inevitable dispersion of these parameters, the quality engineering technique, or the Taguchi method, combined with a genetic local search (GLS) is employed. Besides the traditional Taguchi's two-step design maximizing the robustness of products before the realization of their specified functions, the concurrent design of robustness and functions is also described.

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