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Progress In Electromagnetics Research Letters
ISSN: 1937-6480
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INVESTIGATION OF WIDEBAND ONE-STEP STAIR-SHAPED DIELECTRIC RESONATOR ANTENNAS

By M. Zou, J. Pan, L. Zuo, and Z.-P. Nie

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Abstract:
The one-step stair-shaped dielectric resonator antennas (DRAs)with a circular cross-section are studied theoretically and experimentally in this paper. The reasons why the one-step stair-shaped DRA shave a wideband performance have been investigated. It is shown in this paper that the modes excited in the one-step stair-shaped DRA with circular cross-section can be regarded as pseudo HEM111 and pseudo HEM113 modes. The pseudo HEM111/ HEM113 mode exhibits similar radiation patterns but a different resonant frequency and radiation Q factor to the HEM111/ HEM113 mode of the cylindrical DRA. By properly choosing the dimensions of the one-step stair-shaped DRA, the two modes can be used to obtain a wideband antenna.

Citation:
M. Zou, J. Pan, L. Zuo, and Z.-P. Nie, "Investigation of Wideband One-Step Stair-Shaped Dielectric Resonator Antennas," Progress In Electromagnetics Research Letters, Vol. 42, 167-176, 2013.
doi:10.2528/PIERL13072901

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