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Design of high‐permittivity rectangular dielectric resonator antenna
Author(s) -
Madhuri R. G.,
Hadalgi P.M.,
Hunagund P. V.
Publication year - 2011
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.25927
Subject(s) - dielectric resonator antenna , dielectric resonator , materials science , resonator , radiator (engine cooling) , dielectric , microwave , optics , permittivity , helical resonator , slot antenna , bandwidth (computing) , return loss , optoelectronics , antenna (radio) , radiation pattern , electrical engineering , acoustics , physics , engineering , telecommunications
Abstract 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