Theory and experiment of the wideband two-layer hemispherical dielectric resonator antenna

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Original languageEnglish
Pages (from-to)1280-1284
Journal / PublicationIEEE Transactions on Antennas and Propagation
Issue number4 PART 2
Publication statusPublished - 2009


The two-layer hemispherical dielectric resonator antenna (DRA) excited by an annular slot is investigated. The slot excitation can be placed in the inner or outer dielectric layer, and the two configurations are studied and compared in this paper. Both problems were solved rigorously using the Green's function approach and the method of moments. The maximum impedance bandwidth and a new bandwidth that considers the field pattern are investigated. Good agreement between the calculations, measurements, and HFSS simulations is obtained. © 2009 IEEE.

Research Area(s)

  • Annular slot, Dielectric resonator antenna, Moment method