A stochastically optimized adaptive procedure for the location of MAS auxiliary monopoles: The case of electromagnetic scattering by dielectric cylinders

Heretakis, II; Papakanellos, PJ; Capsalis, CN

dc.contributor.author	Heretakis, II	en
dc.contributor.author	Papakanellos, PJ	en
dc.contributor.author	Capsalis, CN	en
dc.date.accessioned	2014-03-01T01:21:46Z
dc.date.available	2014-03-01T01:21:46Z
dc.date.issued	2005	en
dc.identifier.issn	0018-926X	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/16362
dc.subject	Boundary value problems	en
dc.subject	Electromagnetic (EM) scattering	en
dc.subject	Genetic algorithms (GAs)	en
dc.subject	Method of auxiliary sources	en
dc.subject.classification	Engineering, Electrical & Electronic	en
dc.subject.classification	Telecommunications	en
dc.subject.other	Approximation theory	en
dc.subject.other	Boundary conditions	en
dc.subject.other	Boundary value problems	en
dc.subject.other	Computational geometry	en
dc.subject.other	Computer simulation	en
dc.subject.other	Genetic algorithms	en
dc.subject.other	Mathematical models	en
dc.subject.other	Matrix algebra	en
dc.subject.other	Optimization	en
dc.subject.other	Random processes	en
dc.subject.other	Dielectric cylinders	en
dc.subject.other	Method of auxiliary sources	en
dc.subject.other	Electromagnetic wave scattering	en
dc.title	A stochastically optimized adaptive procedure for the location of MAS auxiliary monopoles: The case of electromagnetic scattering by dielectric cylinders	en
heal.type	journalArticle	en
heal.identifier.primary	10.1109/TAP.2004.842699	en
heal.identifier.secondary	http://dx.doi.org/10.1109/TAP.2004.842699	en
heal.language	English	en
heal.publicationDate	2005	en
heal.abstract	A genetically optimized technique that fully automates the potentially laborious allocation of the auxiliary monopoles for the method of auxiliary sources (MAS) is presented for the problem of electromagnetic (EM) scattering by isotropic dielectric cylinders with various cross sections. The proposed technique uses as input information not only the geometry of the scatterer but also the exciting field and the material properties of the cylinders are implicitly taking part in the optimization procedure. The resulting auxiliary surfaces, where the simulating monopoles are situated, are appropriately adapted to the original boundary surface and the MAS modeling is greatly facilitated. In addition, certain considerations are taken into account in order to avoid undesirable numerical dependencies between the fictitious monopoles. Finally, the accuracy of the numerical method combined with overdetermined systems of equations is examined for isotropic cylinders of various geometries and dielectric characteristics. © 2005 IEEE.	en
heal.publisher	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC	en
heal.journalName	IEEE Transactions on Antennas and Propagation	en
dc.identifier.doi	10.1109/TAP.2004.842699	en
dc.identifier.isi	ISI:000227508900006	en
dc.identifier.volume	53	en
dc.identifier.issue	3	en
dc.identifier.spage	938	en
dc.identifier.epage	947	en