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Antennas and Propagation Society International Symposium, 1991. AP-S. Digest, États-Unis (1991)

Modal analysis of dielectric loaded coaxial probe fed circular waveguide radiator

S. Safavi-Naini 1, Hossein Ameri Mahabadi 1

(24/06/1991)

An almost rigorous procedure for analyzing dielectric resonator antennas in cylindrical enclosures is presented. The resonant frequency and radiation pattern of a circular waveguide radiator have been analyzed by the method presented. The primary consideration in this special design has been the bandwidth. Experimental results and theoretical predictions for two cases (∈=4,12) are shown. As is evident from this comparison, the method has a reasonable accuracy. In both cases, a piecewise sinusoidal distribution for the probe current has been assumed. In general a limited number of modes in both inhomogeneous and homogeneous regions provides sufficiently accurate results for many practical cases

1 :	Department of Electrical Engineering
	Faculty of Engineering, University of Malaya

Domaine

:

Sciences de l'ingénieur/Electronique

Mots Clés : antenna feeders – antenna radiation patterns – circular waveguides – dielectric resonators – dielectric-loaded – antennas probes – waveguide antennas – bandwidth – circular waveguide radiator – coaxial probe fed radiator – cylindrical enclosures – dielectric loaded antenna – dielectric resonator antennas – homogeneous regions – inhomogeneous region – modal analysis – piecewise sinusoidal distribution – probe current – radiation pattern – resonant frequency

hal-00722719, version 1

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Contributeur : Hossein Ameri Mahabadi <>

Soumis le : Vendredi 3 Août 2012, 14:18:22

Dernière modification le : Vendredi 3 Août 2012, 14:26:55