Layout Design of Components and Conductors in Noise Filter by Integrative Optimization of Structural Topology and External Variables

Abstract

This paper presents a layout design method of a noise filter that simultaneously optimizes an arrangement of electrical components and a conductor pattern. A conductor design method has been proposed based on topology optimization, but its solutions are limited to sub-optimal under the viewpoint of overall optimality, because the arrangement of components is treated as a given condition. For integratively optimizing both of them, this study extends a topology optimization framework incorporating external variables with metamodeling, where the external variables correspond to the arrangement of components. A face-centered cubic design and sequential addition of samples are introduced to efficiently perform its metamodeling even under large number of external variables. Two numerical examples of noise filter design problems are demonstrated, and their results show that the integrative optimization significantly improves the filter performance as compared with non-integrative optimization.