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dc.contributor.authorAbd-Alhameed, Raed A.*
dc.contributor.authorExcell, Peter S.*
dc.date.accessioned2009-08-05T07:41:24Z
dc.date.available2009-08-05T07:41:24Z
dc.date.issued2002
dc.identifier.citationAbd-Alhameed, R.A. and Excell, P. S. (2002). Complete Surface Current Surface Distribution in a Normal-Mode Helical Antenna using a Galerkin Solution with Sinusoidal Basis Functions. IEE Proceedings - Science, Measurement and Technology. Vol 149, No. 5, pp. 272-276.en
dc.identifier.urihttp://hdl.handle.net/10454/3209
dc.descriptionNoen
dc.description.abstractAn investigation of the surface current distribution in a normal-mode helical antenna (NMHA) is reported. This enables precise prediction of the performance of NMHAs, since traditional wire-antenna simulations ignore important details, such as non-uniform and transverse current distributions. A moment-method formulation is developed, using two-dimensional basis functions to represent the total non-uniform surface current distribution over the surface of the wire of the helix. Piecewise-sinusoidal basis functions are employed in two normal directions, with an exact kernel formulation and application of Galerkin's solution method. The numerical solution of the singular integrals associated with self-impedance terms was computed with a very low relative error. The surface current distribution was computed for different helix geometries. It was found that the axially-directed component of the current distribution around the surface of the wire was highly non-uniform and that there was also a significant circumferential current flow due to inter-turn capacitance, both effects that are overlooked by standard filamentary current representations.en
dc.language.isoenen
dc.relation.isreferencedbyhttp://dx.doi.org/10.1049/ip-smt:20020568en
dc.subjectNormal-mode helical antennaen
dc.subjectNon-uniform and transverse current distributionsen
dc.subjectGalerkin's solution methoden
dc.subjectHelix geometriesen
dc.subjectSurface Current Surface Distributionen
dc.subjectSinusoidal Basis Functionsen
dc.titleComplete Surface Current Surface Distribution in a Normal-Mode Helical Antenna using a Galerkin Solution with Sinusoidal Basis Functions.en
dc.status.refereedYesen
dc.typeArticleen
dc.type.versionNo full-text available in the repositoryen


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