Design of high-permittivity rectangular dielectric resonator antenna

In this article, a high‐permittivity rectangular dielectric resonator antenna is proposed. In this configuration, wideband operation is achieved by loading a rectangular dielectric resonator on the center of the rectangular ring slot. Dielectric resonators of three different thicknesses have been st...

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Bibliographic Details
Published in:Microwave and optical technology letters 2011-05, Vol.53 (5), p.1077-1079
Main Authors: Madhuri, R. G., Hadalgi, P.M., Hunagund, P. V.
Format: Article
Language:English
Subjects:
Antennas
Bandwidth
Beams (radiation)
dielectric resonator antenna
Dielectrics
high permittivity
Microwaves
On-line systems
Radiators
Resonators
slot fed
wideband
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Summary:In this article, a high‐permittivity rectangular dielectric resonator antenna is proposed. In this configuration, wideband operation is achieved by loading a rectangular dielectric resonator on the center of the rectangular ring slot. Dielectric resonators of three different thicknesses have been studied. In this configuration, slot acts as an effective radiator and the feeding structure of the dielectric resonator. The dual‐band resonances of the two radiators, i.e., slot and dielectric resonator are combined to extend the antenna bandwidth. The measured impedance bandwidth obtained is about 81.7%. The return loss, radiation pattern, and half power beam widths are measured and presented. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett 53:1077–1079, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.25927
ISSN:0895-2477
1098-2760
1098-2760
DOI:10.1002/mop.25927