Difficulties in MoM analyses of resonant circular arrays of cylindrical dipoles

Difficulties in MoM analyses of resonant circular arrays of cylindrical dipoles

Previous studies have shown that a properly dimensioned, large circular array of cylindrical dipoles possesses very narrow resonances. Only one dipole is driven and the rest are parasitic. Those studies made use of the 'two-term theory'. In this paper, the Numerical Electromagnetics Code i...

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Veröffentlicht in:Electronics letters 2005-01, Vol.41 (2), p.1-1
Hauptverfasser: Fikioris, G, Papakanellos, P J, Koundouros, J D, Patsiotis, A K
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Arrays
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Dipoles
Mathematical models
Remedies
Rest
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Papakanellos, P J
Koundouros, J D
Patsiotis, A K
description Previous studies have shown that a properly dimensioned, large circular array of cylindrical dipoles possesses very narrow resonances. Only one dipole is driven and the rest are parasitic. Those studies made use of the 'two-term theory'. In this paper, the Numerical Electromagnetics Code is applied to the aforementioned circular array. At some frequencies, meaningless results -- large, negative driving-point conductances -- are found. An attempt is made to explain why such results occur and propose remedies when possible.
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subjects Arrays
Circularity
Dipoles
Mathematical models
Remedies
Rest
title Difficulties in MoM analyses of resonant circular arrays of cylindrical dipoles
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