Analysis of an infinite current source above a semi-infinite lossy ground using fictitious current auxiliary sources in conjunction with complex image theory techniques

Papakanellos, PJ; Kaklamani, DI; Capsalis, CN

dc.contributor.author	Papakanellos, PJ	en
dc.contributor.author	Kaklamani, DI	en
dc.contributor.author	Capsalis, CN	en
dc.date.accessioned	2014-03-01T01:16:09Z
dc.date.available	2014-03-01T01:16:09Z
dc.date.issued	2001	en
dc.identifier.issn	0018-926X	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/13947
dc.subject	Auxiliary sources	en
dc.subject	Boundary value problems	en
dc.subject	Complex image theory techniques	en
dc.subject	Electromagnetic (EM) scattering	en
dc.subject.classification	Engineering, Electrical & Electronic	en
dc.subject.classification	Telecommunications	en
dc.subject.other	Complex image theory techniques	en
dc.subject.other	Electric current line	en
dc.subject.other	Method of auxilliary sources	en
dc.subject.other	Approximation theory	en
dc.subject.other	Boundary value problems	en
dc.subject.other	Electric currents	en
dc.subject.other	Electric lines	en
dc.subject.other	Method of moments	en
dc.subject.other	Numerical analysis	en
dc.subject.other	Optimization	en
dc.subject.other	Electromagnetic wave scattering	en
dc.title	Analysis of an infinite current source above a semi-infinite lossy ground using fictitious current auxiliary sources in conjunction with complex image theory techniques	en
heal.type	journalArticle	en
heal.identifier.primary	10.1109/8.954939	en
heal.identifier.secondary	http://dx.doi.org/10.1109/8.954939	en
heal.language	English	en
heal.publicationDate	2001	en
heal.abstract	In this paper, the canonical problem of an infinitely long electric current line radiating above a lossy infinite half space is examined. The solution is based on the method of auxiliary sources (MAS). In this method one can, in general, apply a numerical solution by introducing sets of fictitious current sources whose fields are elementary analytical solutions to the boundary value problem, in order to approximately describe the actual electromagnetic (EM) fields in each domain. In general, the convergence rate and the accuracy of the MAS solution depend on the spatial distributions of the fictitious current sources sets and their locations in regard to the singularities of the actual EM field simulated by each set. Here, both the accuracy and the convergence rate of the method are examined, investigating complex image approximations in order to optimally choose the auxiliary sources placements. It is proved that the convergence rate and the accuracy of the method are significantly improved by utilizing the complex images as locations of the auxiliary sources. The main contribution of the present paper consists in the application of MAS to an open structure, which involves lossy dielectrics excited by a nonuniform EM field, as well as in the optimal choice of the locations of the fictitious current sources according to complex image techniques.	en
heal.publisher	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC	en
heal.journalName	IEEE Transactions on Antennas and Propagation	en
dc.identifier.doi	10.1109/8.954939	en
dc.identifier.isi	ISI:000171424700017	en
dc.identifier.volume	49	en
dc.identifier.issue	10	en
dc.identifier.spage	1491	en
dc.identifier.epage	1503	en