IEICE Transactions on Electronics
Online ISSN : 1745-1353
Print ISSN : 0916-8524

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Topology Optimal Design of NRD Guide Devices Using Function Expansion Method and Evolutionary Approaches
Naoya HIEDAKeita MORIMOTOAkito IGUCHIYasuhide TSUJITatsuya KASHIWA
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ジャーナル 認証あり 早期公開

論文ID: 2021ESP0005

この記事には本公開記事があります。
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In order to increase communication capacity, the use of millimeter-wave and terahertz-wave bands are being actively explored. Non-radiative dielectric waveguide known as NRD guide is one of promising platform of millimeter-wave integrated circuits thanks to its non-radiative and low loss nature. In order to develop millimeter wave circuits with various functions, various circuit components have to be efficiently designed to meet requirements from application side. In this paper, for efficient design of NRD guide devices, we develop a topology optimal design technique based on function-expansion-method which can express arbitrary structure with arbitrary geometric topology. In the present approach, recently developed two-dimensional full-vectorial finite element method (2D-FVFEM) for NRD guide devices is employed to improve computational efficiency and several evolutionary approaches, which do not require appropriate initial structure depending on a given design problem, are used to optimize design variables, thus, NRD guide devices having desired functions are efficiently obtained without requiring designer's special knowledge.
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