Mode transitions between bound and leaky regimes in lossy dielectric waveguides: A numerical investigation

Athanasoulias, GB; Uzunoglu, NK

dc.contributor.author	Athanasoulias, GB	en
dc.contributor.author	Uzunoglu, NK	en
dc.date.accessioned	2014-03-01T01:13:12Z
dc.date.available	2014-03-01T01:13:12Z
dc.date.issued	1997	en
dc.identifier.issn	1051-8207	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/12351
dc.subject	Guided waves	en
dc.subject	Leaky waves	en
dc.subject	Lossy dielectric waveguides	en
dc.subject.classification	Engineering, Electrical & Electronic	en
dc.subject.other	Electromagnetic wave attenuation	en
dc.subject.other	Guided electromagnetic wave propagation	en
dc.subject.other	Transmission line theory	en
dc.subject.other	Galerkin's method	en
dc.subject.other	Leaky waves	en
dc.subject.other	Dielectric waveguides	en
dc.title	Mode transitions between bound and leaky regimes in lossy dielectric waveguides: A numerical investigation	en
heal.type	journalArticle	en
heal.identifier.primary	10.1109/75.645182	en
heal.identifier.secondary	http://dx.doi.org/10.1109/75.645182	en
heal.language	English	en
heal.publicationDate	1997	en
heal.abstract	This letter presents a novel numerical study of mode transitions between bound and leaky regimes in a lossy-substrate dielectric rib waveguide. An entire-domain basis Galerkin's method is employed to determine the wavenumbers of the transmission line modes. The obtained results show that as the loss tangent gradually increases from zero to infinity, the plots of the attenuation constants alter between regions of constant and linear variation. In the progress of this behavior the modes evolve from leaky to bound state, or the inverse, and their corresponding poles in the spectral plane cross the real axis.	en
heal.publisher	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC	en
heal.journalName	IEEE Microwave and Guided Wave Letters	en
dc.identifier.doi	10.1109/75.645182	en
dc.identifier.isi	ISI:A1997YJ28000002	en
dc.identifier.volume	7	en
dc.identifier.issue	12	en
dc.identifier.spage	393	en
dc.identifier.epage	395	en