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Design and modeling of a high gain wideband circular polarized dielectric resonator antenna array
Author(s) -
Ain M. F.,
Qasaymeh Y.M.,
Ahmad Z. A.,
Zakariya M. A.,
Othman M. A.,
Abdullah M. Z.
Publication year - 2012
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.26860
Subject(s) - dielectric resonator antenna , microstrip antenna , radiation pattern , circular polarization , dielectric resonator , antenna gain , optics , acoustics , antenna measurement , coaxial antenna , antenna efficiency , patch antenna , wideband , physics , antenna (radio) , resonator , microstrip , electrical engineering , engineering
In this letter, a circular polarized dielectric resonator antenna (DRA) using notched resonators excited through narrow slots is presented. To improve the gain, the slot positions were determined based on the characteristic of standing wave ratio over a short ended microstrip feeder. To enhance the bandwidth and circular polarization, three notched rectangular dielectric elements were rotated 45° with respect to the sides of the exciting slots. The DRAs are modeled as a parallel RLC component, as that will be used to determine the dielectric resonator dimensions. Antenna characteristics of the array antenna including return loss, radiation patterns, and antenna gain are presented. The size of the whole antenna structure is 40 × 45 mm 2 which gives its potential use in wireless communication systems. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:1396–1399, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26860