Analysis of electromagnetic scattering by infinite conducting cylinders of arbitrary smooth cross section using a genetically optimised technique (GA/MAS)

Heretakis, IL; Papakanellos, PJ; Capsalis, CN

dc.contributor.author	Heretakis, IL	en
dc.contributor.author	Papakanellos, PJ	en
dc.contributor.author	Capsalis, CN	en
dc.date.accessioned	2014-03-01T01:17:32Z
dc.date.available	2014-03-01T01:17:32Z
dc.date.issued	2002	en
dc.identifier.issn	0920-5071	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/14547
dc.subject	Cross Section	en
dc.subject	Electromagnetic Scattering	en
dc.subject	Genetics	en
dc.subject.classification	Engineering, Electrical & Electronic	en
dc.subject.classification	Physics, Applied	en
dc.subject.classification	Physics, Mathematical	en
dc.subject.other	Boundary conditions	en
dc.subject.other	Computer simulation	en
dc.subject.other	Convergence of numerical methods	en
dc.subject.other	Dielectric materials	en
dc.subject.other	Electromagnetic fields	en
dc.subject.other	Error compensation	en
dc.subject.other	Flowcharting	en
dc.subject.other	Genetic algorithms	en
dc.subject.other	Matrix algebra	en
dc.subject.other	Optimization	en
dc.subject.other	Random processes	en
dc.subject.other	Boundary condition error	en
dc.subject.other	Infinite conducting cylinders	en
dc.subject.other	Method of auxilliary sources	en
dc.subject.other	Perfectly conducting cylinders	en
dc.subject.other	Stochastic search method	en
dc.subject.other	Electromagnetic wave scattering	en
dc.title	Analysis of electromagnetic scattering by infinite conducting cylinders of arbitrary smooth cross section using a genetically optimised technique (GA/MAS)	en
heal.type	journalArticle	en
heal.identifier.primary	10.1163/156939302X00994	en
heal.identifier.secondary	http://dx.doi.org/10.1163/156939302X00994	en
heal.language	English	en
heal.publicationDate	2002	en
heal.abstract	The utilisation of elemental auxiliary sources located inside the scatterer in order to approximately describe the scattered field has proved to be an efficient numerical method for the analysis of electromagnetic (EM) scattering by metallic bodies. In this paper the problem of TM scattering by perfectly conducting cylinders of arbitrary but smooth cross section is treated with the integration of the above technique with the strategy of Genetic Algorithm (GA) optimisation. The GA is employed in order to allocate the auxiliary sources inside the scatterer and minimise the boundary condition error (BCE), which is an endogenous effect of the point matching procedure involved in the numerical solution. For such a case, the trial and error stage usually required for the selection of the source locations is omitted and at the same time GA stochastic search can be potentially conducted in a similar way in complex space. For a predefined accuracy of the BCE, the resulting pleiotropic, GA-optimised allocations of the sources are non-intuitive but notably affected by the geometry of the scatterer. Results are presented for the cases of infinite, perfectly conducting circular, elliptic, and periodically corrugated cylinders, demonstrating sufficient agreement with available solutions.	en
heal.publisher	VSP BV	en
heal.journalName	Journal of Electromagnetic Waves and Applications	en
dc.identifier.doi	10.1163/156939302X00994	en
dc.identifier.isi	ISI:000179941200006	en
dc.identifier.volume	16	en
dc.identifier.issue	11	en
dc.identifier.spage	1555	en
dc.identifier.epage	1572	en