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Circularly polarized quarter‐cylinder‐shaped dielectric resonator antenna using a single probe feed
Author(s) -
Bezerra Jose W. O.,
Sousa D. G.,
Junqueira C. C. M.,
Silva Marcelo A. S.,
Barroso G. C.,
Sombra Antonio S. B.
Publication year - 2015
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.28930
Subject(s) - dielectric resonator antenna , optics , microwave , axial ratio , turnstile antenna , resonator , dielectric resonator , dielectric , circular polarization , bandwidth (computing) , physics , coaxial antenna , antenna (radio) , engineering , acoustics , dipole antenna , electrical engineering , telecommunications , microstrip
This article proposes a dielectric resonator in the form of a quarter of a cylinder to perform as a circularly polarized antenna using a very simple feed design on which a single probe excites two resonant modes in phase quadrature and spatial orthogonality. This study examines some electromagnetic aspects of this antenna and it also presents and discusses the results achieved from computational simulation and experimental measurements. It was verified a good agreement between simulated and experimental results showing a 3‐dB axial ratio bandwidth over 3% at 2.25 GHz. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:722–726, 2015