Accurate and efficient entire-domain basis Galerkin's method for the integral equation analysis of integrated rectangular dielectric waveguides

Athanasoulias, G; Uzunoglu, NK

dc.contributor.author	Athanasoulias, G	en
dc.contributor.author	Uzunoglu, NK	en
dc.date.accessioned	2014-03-01T01:10:48Z
dc.date.available	2014-03-01T01:10:48Z
dc.date.issued	1995	en
dc.identifier.issn	0018-9480	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/11448
dc.subject	Computational Efficiency	en
dc.subject	Dielectric Waveguide	en
dc.subject	Dispersion Curve	en
dc.subject	Integral Equation	en
dc.subject	Integrated Circuit	en
dc.subject	Plane Waves	en
dc.subject	Satisfiability	en
dc.subject.classification	Engineering, Electrical & Electronic	en
dc.subject.other	Calculations	en
dc.subject.other	Electric fields	en
dc.subject.other	Electromagnetic wave propagation	en
dc.subject.other	Functions	en
dc.subject.other	Integral equations	en
dc.subject.other	Integrated circuits	en
dc.subject.other	Maxwell equations	en
dc.subject.other	Numerical methods	en
dc.subject.other	Rectangular waveguides	en
dc.subject.other	Asymptotic extraction technique	en
dc.subject.other	Computational efficiency	en
dc.subject.other	Entire domain basis functions	en
dc.subject.other	Galerkin method	en
dc.subject.other	Helmholtz equation	en
dc.subject.other	Dielectric waveguides	en
dc.title	Accurate and efficient entire-domain basis Galerkin's method for the integral equation analysis of integrated rectangular dielectric waveguides	en
heal.type	journalArticle	en
heal.identifier.primary	10.1109/22.475637	en
heal.identifier.secondary	http://dx.doi.org/10.1109/22.475637	en
heal.language	English	en
heal.publicationDate	1995	en
heal.abstract	The propagation characteristics of multiple coupled rectangular dielectric waveguides are investigated through an integral equation analysis. In contrast with the widely used subdomain-basis Galerkin's method, in this work a novel set of entire-domain basis functions is introduced. This set consists of plane wave functions that satisfy Maxwell's equations in each guiding region, therefore representing a proper expansion system. The simple form of the basis functions employed enables the accurate numerical evaluation of the spectral integrals, by means of an efficient asymptotic extraction technique. It is found that the computed dispersion curves presented for various single and coupled waveguides compare very favorably to published results of other methods. Finally, leakage effects in lossy waveguides are numerically treated for the first time, in view of mode transitions from leaky to bound regime. The technique presented in this paper is accurate, though conceptually simple, and can deal with a wide variety of integrated circuits and multilayered substrate configurations. It is also demonstrated that its main advantage is superior computational efficiency, since very satisfactory results are obtained with only a few expansion terms.	en
heal.publisher	IEEE, Piscataway, NJ, United States	en
heal.journalName	IEEE Transactions on Microwave Theory and Techniques	en
dc.identifier.doi	10.1109/22.475637	en
dc.identifier.isi	ISI:A1995TN47600012	en
dc.identifier.volume	43	en
dc.identifier.issue	12 pt 2	en
dc.identifier.spage	2794	en
dc.identifier.epage	2804	en