Topology Optimization of Electromagnetic Waveguides Targeting Guiding Characteristics

DOI

Bibliographic Information

Other Title
  • 導波特性を設計目標とする電磁波導波路のトポロジー最適化

Abstract

This paper proposes a new topology optimization method for the structural design of electromagnetic waveguides that perform according to specified guiding characteristics, where the design target of the constructed methodology pertains to waveguide cross-sections. First, the concept of topology optimization and a way to apply it to electromagnetic problems are explained. Design requirements for the waveguide cross-sections are then clarified and corresponding objective functions are formulated. A new multi-objective function is formulated to reduce grayscales since using a penalization parameter for physical property interpolation is ineffective in electromagnetic problems. For the eigen-value analysis, the Finite Element Method with hybrid edge/nodal elements is used, to avoid undesirable nonphysical, spurious solutions. The optimization algorithm is constructed based on these formulations and Sequential Linear Programming. Finally, several design examples of waveguide cross-sections are presented in order to confirm the usefulness of the proposed method.

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Keywords

Details 詳細情報について

  • CRID
    1390569944002064000
  • NII Article ID
    130008056249
  • DOI
    10.11421/jsces.2007.20070025
  • ISSN
    13478826
  • Text Lang
    ja
  • Data Source
    • JaLC
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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