Analysis of coaxially fed monopole antennas using an auxiliary sources technique

Papakanellos, PJ; Capsalis, CN

dc.contributor.author	Papakanellos, PJ	en
dc.contributor.author	Capsalis, CN	en
dc.date.accessioned	2014-03-01T01:17:32Z
dc.date.available	2014-03-01T01:17:32Z
dc.date.issued	2002	en
dc.identifier.issn	0048-6604	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/14545
dc.subject	Antenna analysis	en
dc.subject	Method of auxiliary sources	en
dc.subject	Monopole antenna	en
dc.subject.classification	Geochemistry & Geophysics	en
dc.subject.classification	Instruments & Instrumentation	en
dc.subject.classification	Meteorology & Atmospheric Sciences	en
dc.subject.classification	Remote Sensing	en
dc.subject.classification	Telecommunications	en
dc.subject.other	Antenna radiation	en
dc.subject.other	Coaxial cables	en
dc.subject.other	Convergence of numerical methods	en
dc.subject.other	Electric fields	en
dc.subject.other	Electric impedance	en
dc.subject.other	Electromagnetic fields	en
dc.subject.other	Monopole antennas	en
dc.subject.other	Antennas	en
dc.title	Analysis of coaxially fed monopole antennas using an auxiliary sources technique	en
heal.type	journalArticle	en
heal.identifier.primary	10.1029/2001RS002566	en
heal.identifier.secondary	http://dx.doi.org/10.1029/2001RS002566	en
heal.identifier.secondary	1040	en
heal.language	English	en
heal.publicationDate	2002	en
heal.abstract	[1] In this paper, the radiation from a circular cylindrical monopole fed through a perfectly conducting ground plane by a coaxial transmission line is analyzed using the method of auxiliary sources. The proposed method is applied by introducing a set of fictitious sources aligned with the monopole's axis for the direct description of the radiated electromagnetic field above the ground plane, under the assumption of a single transverse electromagnetic mode existing in the annular aperture of the line. The currents of the fictitious sources are derived by imposing the continuity condition of the tangential electric field on the physical surface of the dipole. For the occasion, the fictitious sources are chosen to be spatially overlapped sinusoidal dipoles. It is substantiated that this choice results in a noteworthy acceleration of the convergence rate of the solution in comparison with the one associated with infinitesimal dipoles, which are usually used in current-model-based techniques. Since the currents of the fictitious sources are determined, pertinent quantities of great interest, including the current distribution along the monopole, the input impedance/admittance, and the field intensities in the near and the far region, can be determined in a straightforward manner. Several examples concerning various geometries are established and compared with previously published data.	en
heal.publisher	AMER GEOPHYSICAL UNION	en
heal.journalName	Radio Science	en
dc.identifier.doi	10.1029/2001RS002566	en
dc.identifier.isi	ISI:000178948200008	en
dc.identifier.volume	37	en
dc.identifier.issue	3	en
dc.identifier.spage	121	en
dc.identifier.epage	1211	en