A possible remedy for the oscillations occurring in thin-wire MOM analysis of cylindrical antennas

Papakanellos, PJ; Fikioris, G

dc.contributor.author	Papakanellos, PJ	en
dc.contributor.author	Fikioris, G	en
dc.date.accessioned	2014-03-01T01:25:46Z
dc.date.available	2014-03-01T01:25:46Z
dc.date.issued	2007	en
dc.identifier.issn	1559-8985	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/17753
dc.subject	Current Distribution	en
dc.subject	Oscillations	en
dc.subject	Moment Method	en
dc.subject.classification	Engineering, Electrical & Electronic	en
dc.subject.classification	Physics, Applied	en
dc.subject.classification	Telecommunications	en
dc.subject.other	INTEGRAL-EQUATIONS	en
dc.subject.other	AUXILIARY SOURCES	en
dc.subject.other	WEIGHTING FUNCTIONS	en
dc.subject.other	CONVERGENCE	en
dc.subject.other	CHOICE	en
dc.title	A possible remedy for the oscillations occurring in thin-wire MOM analysis of cylindrical antennas	en
heal.type	journalArticle	en
heal.identifier.primary	10.2528/PIER06120502	en
heal.identifier.secondary	http://dx.doi.org/10.2528/PIER06120502	en
heal.language	English	en
heal.publicationDate	2007	en
heal.abstract	Approximate, non-singular kernels are often used in moment-method formulations coping with thin-wire structures. Their use has important consequences, one of which is the appearance of oscillations in the computed currents when the number of sub-domain basis functions is sufficiently large. These oscillations are not due to round-off errors. In this paper, a smoothing procedure is used in conjunction with Galerkin's formulation with piecewise sinusoidal functions, which yields non-oscillating current distributions. Special attention is paid to the solutions over a wide range of discretization levels (number of basis/testing functions), in order to examine and illustrate the similarities and differences between results obtained with and without the proposed remedy. Finally, a comparison with results derived with the exact kernel is provided.	en
heal.publisher	E M W PUBLISHING	en
heal.journalName	Progress in Electromagnetics Research	en
dc.identifier.doi	10.2528/PIER06120502	en
dc.identifier.isi	ISI:000246722500007	en
dc.identifier.volume	69	en
dc.identifier.spage	77	en
dc.identifier.epage	92	en