Optimising stop-bands in periodic waveguides using genetic algorithms and wave finite element method

Jamil Renno*, M. Shadi Mohamed

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper, we propose using the wave finite element method and genetic algorithms to design periodic waveguide structures with optimal stop-bands. Instead of modelling waveguides using the standard finite element method, we use the wave finite element method to model the waveguides. The wave and finite element method is based on using periodic structure theory and the finite element model of a unit cell of the waveguide to describe the waveguide's motion in terms of wave amplitudes rather than in terms of physical degrees of freedom. This results in a numerically efficient model of the waveguide which can be used in optimisation studies. In particular, the focus of this paper is on the optimisation of stop-bands in the waveguides which leverage this property of periodic structures. Genetic algorithms will be used to optimise the stop-bands. A numerical example where analytical models can be obtained will be used to demonstrate the efficacy of the proposed approach and its potential.

Original languageEnglish
Title of host publicationProceedings of the Ninth International Conference on Modeling, Simulation and Applied Optimization
PublisherAIP Publishing
ISBN (Print)9780735448650
DOIs
Publication statusPublished - 5 Mar 2024
Event9th International Conference on Modeling, Simulation and Applied Optimization 2023 - Marrakesh, Morocco
Duration: 26 Apr 202328 Apr 2023

Publication series

NameAIP Conference Proceedings
Number1
Volume3034
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference9th International Conference on Modeling, Simulation and Applied Optimization 2023
Abbreviated titleICMSAO 2023
Country/TerritoryMorocco
CityMarrakesh
Period26/04/2328/04/23

ASJC Scopus subject areas

  • General Physics and Astronomy

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