A realistic approach for designing a single-mode Y-branch for weakly guiding material system using particle swarm algorithm

Avad, Jihad; Demirtaş, Mustafa; Perkgöz, Nihan Kosku; Ay, F.

doi:10.1007/s11082-019-2181-5

Cited by 1 publication

(1 citation statement)

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“…There are inherent difficulties in designing NRD guides, and it is especially important to study wideband operation. Several optimal design approaches have been proposed for optical guide devices such as geometric optimization, topology optimization, genetic algorithm, particle swarm optimization, direct binary search algorithm, inverse design algorithm, and differential evolution algorithm 12–35 . But research for the development of these optimal design approaches with different optimization strategies for NRD guide devices have not been conducted.…”

Section: Introductionmentioning

confidence: 99%

Optimal design of broadband non‐radiative dielectric guide devices using binary genetic algorithm and 2D‐FVFEM

Bashir

Morimoto

Iguchi

et al. 2022

Int J Numerical Modelling

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In this paper, a class of broadband non‐radiative dielectric (NRD) guide devices based on digital material are presented using optimal design technique. The NRD guides to be discussed here include low crosstalk crossing waveguide, T‐branch, 90°‐bend, and Z‐bend waveguide. To reduce the computational efforts, we employ recently proposed 2D‐FVFEM as simulation method. Based on digital material optimization strategy, binary genetic algorithm is implemented to obtain an optimal device structure in the design region. To achieve the desired properties, we introduce a unique one‐two symmetric conditions for the structural optimization. Hence, the designed crossing, T‐branch, 90°‐bend, and Z‐bend, respectively, achieve high transmission efficiencies greater than 99.5%, 49.5%:49.5%, 99.4%, and 99.9% at operating frequency 60 GHz, and, furthermore, achieve broadband property as well in the frequency ranges of 58 –64, 58–62, 59–62, and 59–63 GHz. The numerical results of 2D‐FVFEM are also verified by 3D‐FVFEM. Owing to excellent performances, the proposed NRD guide devices can be useful in a lot of millimeter‐wave circuit and system applications.

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Section: Introductionmentioning

confidence: 99%